cross/{binutils,gcc,musl}-riscv64: new aport (MR 3559)

Use pmbootstrap aportgen to generate these new packages. [ci:skip-vercheck]
2022-10-14 00:13:10 +02:00 · 2022-10-14 00:13:10 +02:00 · dc9e47ae00
commit dc9e47ae00
parent eafbfdc95c
55 changed files with 4182 additions and 0 deletions
--- a/cross/binutils-riscv64/0001-Revert-PR25882-.gnu.attributes-are-not-checked-for-s.patch
+++ b/cross/binutils-riscv64/0001-Revert-PR25882-.gnu.attributes-are-not-checked-for-s.patch
@ -0,0 +1,55 @@
+From bbf05b742fde518fb97c789b043fe0d3aaf549f0 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Tue, 21 Sep 2021 14:53:13 +0000
+Subject: [PATCH] Revert "PR25882, .gnu.attributes are not checked for shared
+ libraries"
+
+This revert is needed to avoid wrongly tagging objects with the incompatible
+IBM long double ABI, which is not supported by musl and will result in
+linking errors if used.
+
+This reverts commit a8acd6eeb6dc2cc5460ece90f90ebe36b56b20ba.
+---
+ bfd/elf32-tic6x.c |  3 ---
+ ld/ldlang.c       | 10 ++++------
+ 2 files changed, 4 insertions(+), 9 deletions(-)
+
+diff --git a/bfd/elf32-tic6x.c b/bfd/elf32-tic6x.c
+index 5754f3cb860..3ad1d612749 100644
+--- a/bfd/elf32-tic6x.c
+++ b/bfd/elf32-tic6x.c
+@@ -3735,9 +3735,6 @@ elf32_tic6x_merge_attributes (bfd *ibfd, struct bfd_link_info *info)
+ 
+ 	case Tag_ABI_PIC:
+ 	case Tag_ABI_PID:
+-	  /* Don't transfer these tags from dynamic objects.  */
+-	  if ((ibfd->flags & DYNAMIC) != 0)
+-	    continue;
+ 	  if (out_attr[i].i > in_attr[i].i)
+ 	    out_attr[i].i = in_attr[i].i;
+ 	  break;
+diff --git a/ld/ldlang.c b/ld/ldlang.c
+index 37b64c89ee1..f13beaef9d9 100644
+--- a/ld/ldlang.c
+++ b/ld/ldlang.c
+@@ -7071,13 +7071,11 @@ lang_check (void)
+ 		   bfd_printable_name (input_bfd), input_bfd,
+ 		   bfd_printable_name (link_info.output_bfd));
+ 	}
+-
+-      /* If the input bfd has no contents, it shouldn't set the
+-	 private data of the output bfd.  */
+-      else if (!file->flags.just_syms
+-	       && ((input_bfd->flags & DYNAMIC) != 0
+-		   || bfd_count_sections (input_bfd) != 0))
+      else if (bfd_count_sections (input_bfd))
+ 	{
+	  /* If the input bfd has no contents, it shouldn't set the
+	     private data of the output bfd.  */
+
+ 	  bfd_error_handler_type pfn = NULL;
+ 
+ 	  /* If we aren't supposed to warn about mismatched input
+-- 
+2.33.0
+
--- a/cross/binutils-riscv64/APKBUILD
+++ b/cross/binutils-riscv64/APKBUILD
@ -0,0 +1,155 @@
+# Automatically generated aport, do not edit!
+# Generator: pmbootstrap aportgen binutils-riscv64
+# Based on: main/binutils
+
+
+CTARGET_ARCH=riscv64
+CTARGET="$(arch_to_hostspec $CTARGET_ARCH)"
+
+pkgname=binutils-riscv64
+pkgver=2.39
+pkgrel=2
+pkgdesc="Tools necessary to build programs for riscv64 targets"
+url="https://www.gnu.org/software/binutils/"
+makedepends_build="bison flex texinfo"
+makedepends_host="zlib-dev"
+makedepends="$makedepends_build $makedepends_host"
+arch="x86_64"
+license="GPL-2.0 GPL-3.0-or-later LGPL-2.0 BSD"
+subpackages="binutils-dev binutils-doc"
+source="https://ftp.gnu.org/gnu/binutils/binutils-$pkgver.tar.xz
+	binutils-ld-fix-static-linking.patch
+	gold-mips.patch
+	ld-bfd-mips.patch
+	0001-Revert-PR25882-.gnu.attributes-are-not-checked-for-s.patch
+	binutils-mips-disable-assert.patch
+	CVE-2022-38533.patch
+	"
+builddir="$srcdir/binutils-$pkgver"
+
+if [ "$CHOST" = "$CBUILD" ] && [ "$CBUILD" = "$CTARGET" ] && [ "$CTARGET_ARCH" != "riscv64" ]; then
+	subpackages="$subpackages binutils-gold"
+fi
+
+if [ "$CHOST" != "$CTARGET" ]; then
+	pkgname="binutils-$CTARGET_ARCH"
+	subpackages=""
+	sonameprefix="binutils:"
+fi
+
+# secfixes:
+#   2.39-r2:
+#     - CVE-2022-38533
+#   2.39-r0:
+#     - CVE-2022-38126
+#   2.35.2-r1:
+#     - CVE-2021-3487
+#   2.32-r0:
+#     - CVE-2018-19931
+#     - CVE-2018-19932
+#     - CVE-2018-20002
+#     - CVE-2018-20712
+#   2.28-r1:
+#     - CVE-2017-7614
+
+build() {
+	local _sysroot=/
+	local _cross_configure="--enable-install-libiberty --enable-shared"
+	local _arch_configure=""
+	local _gold_configure="--disable-gold"
+	local _plugin_configure="--enable-plugins"
+
+	if [ "$CHOST" != "$CTARGET" ]; then
+		_sysroot="$CBUILDROOT"
+		_cross_configure="--disable-install-libiberty"
+		_plugin_configure="--disable-plugins"
+	fi
+
+	if [ "$CHOST" = "$CBUILD" ] && [ "$CBUILD" = "$CTARGET" ] && [ "$CTARGET_ARCH" != "riscv64" ]; then
+		_gold_configure="--enable-gold"
+	fi
+
+	if [ "$CTARGET_ARCH" = "x86_64" ]; then
+		_arch_configure="--enable-targets=x86_64-pep"
+	fi
+
+	if [ "$CTARGET_ARCH" = "riscv64" ]; then
+		_gold_configure="--disable-gold"
+	fi
+
+	case "$CTARGET_ARCH" in
+	mips*)  _hash_style_configure="--enable-default-hash-style=sysv" ;;
+	*)      _hash_style_configure="--enable-default-hash-style=gnu"	;;
+	esac
+
+	./configure \
+		--build=$CBUILD \
+		--host=$CHOST \
+		--target=$CTARGET \
+		--with-build-sysroot="$CBUILDROOT" \
+		--with-sysroot=$_sysroot \
+		--prefix=/usr \
+		--mandir=/usr/share/man \
+		--infodir=/usr/share/info \
+		--disable-multilib \
+		--disable-gprofng \
+		--enable-ld=default \
+		$_gold_configure \
+		--enable-64-bit-bfd \
+		$_plugin_configure \
+		--enable-relro \
+		--enable-deterministic-archives \
+		--enable-default-execstack=no \
+		$_cross_configure \
+		$_arch_configure \
+		$_hash_style_configure \
+		--with-pic \
+		--disable-werror \
+		--disable-nls \
+		--with-mmap \
+		--with-system-zlib
+	make
+}
+
+package() {
+	make install DESTDIR="$pkgdir"
+	if [ -d "$pkgdir"/usr/lib64 ]; then
+		mv "$pkgdir"/usr/lib64/* "$pkgdir"/usr/lib/
+		rmdir "$pkgdir"/usr/lib64
+	fi
+	if [ "$CHOST" != "$CTARGET" ]; then
+		# creating cross tools: remove any files that would conflict
+		# with the native tools, or other cross tools
+		rm -r "${pkgdir:?}"/usr/share
+		rm -f "$pkgdir"/usr/lib/libiberty.a
+		rm -r "${pkgdir:?}"/usr/lib/bfd-plugins
+	fi
+}
+
+libs() {
+	pkgdesc="Runtime libraries from binutils - libbfd and libopcodes"
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/lib*.so "$subpkgdir"/usr/lib/
+}
+
+gold() {
+	pkgdesc="GNU binutils - gold linker"
+
+	if [ -e "$pkgdir"/usr/bin/ld.gold ]; then
+		mkdir -p "$subpkgdir"/usr/bin
+		mv "$pkgdir"/usr/bin/ld.gold "$subpkgdir"/usr/bin
+	fi
+	mkdir -p "$subpkgdir"/usr/$CTARGET/bin
+	mv "$pkgdir"/usr/$CTARGET/bin/ld.gold "$subpkgdir"/usr/$CTARGET/bin/ld.gold
+}
+
+sha512sums="
+68e038f339a8c21faa19a57bbc447a51c817f47c2e06d740847c6e9cc3396c025d35d5369fa8c3f8b70414757c89f0e577939ddc0d70f283182504920f53b0a3  binutils-2.39.tar.xz
+ecee33b0e435aa704af1c334e560f201638ff79e199aa11ed78a72f7c9b46f85fbb227af5748e735fd681d1965fcc42ac81b0c8824e540430ce0c706c81e8b49  binutils-ld-fix-static-linking.patch
+f55cf2e0bf82f97583a1abe10710e4013ecf7d64f1da2ef8659a44a06d0dd8beaf58dab98a183488ea137f03e32d62efc878d95f018f836f8cec870bc448556f  gold-mips.patch
+314d2ef9071c89940aa6c8118e8a1e2f191a5d0a4bf596da1ad9cc84f884d8bc7dea8bd7b9fc3f8f1bddd3fd41c6eb017e1e804044b3bf084df1ed9e6e095e2d  ld-bfd-mips.patch
+70ec22bd72ef6dddecfd970613387dd4a8cdc8730dd3cbf03d5a0c3a7c4d839383167bb06dad21bf7c235329fd44b5dc4aefe762f68544f17155cf002bf1be4a  0001-Revert-PR25882-.gnu.attributes-are-not-checked-for-s.patch
+609cd90d8b334eb309f586b17b9d335a08d3dbb6def7c3eb5c010028fcb681674031e5b9d853aa7a39a50304356a86afc184b85562b3f228f8197f4d29395c8f  binutils-mips-disable-assert.patch
+631726e557524633ace39c597acbc5ac39bfd25f7b292eee1f0b2a80a503f4ff799f027757d12d5a24b2fa3c07c7e14602d8a86d96e19876d6d0d5d1a02817e7  CVE-2022-38533.patch
+"
--- a/cross/binutils-riscv64/CVE-2022-38533.patch
+++ b/cross/binutils-riscv64/CVE-2022-38533.patch
@ -0,0 +1,22 @@
+X-Git-Url: https://sourceware.org/git/?p=binutils-gdb.git;a=blobdiff_plain;f=bfd%2Fcoffcode.h;h=52027981c3f052d98e043cd0c877f0bb5da97c7f;hp=67aaf158ca1829fe63f0065f31a0b1009b227b36;hb=ef186fe54aa6d281a3ff8a9528417e5cc614c797;hpb=80075150727d653c39e9d037e15c6b87dcef08cd
+
+diff --git a/bfd/coffcode.h b/bfd/coffcode.h
+index 67aaf158ca1..52027981c3f 100644
+--- a/bfd/coffcode.h
+++ b/bfd/coffcode.h
+@@ -4302,10 +4302,13 @@ coff_set_section_contents (bfd * abfd,
+ 
+ 	rec = (bfd_byte *) location;
+ 	recend = rec + count;
+-	while (rec < recend)
+	while (recend - rec >= 4)
+ 	  {
+	    size_t len = bfd_get_32 (abfd, rec);
+	    if (len == 0 || len > (size_t) (recend - rec) / 4)
+	      break;
+	    rec += len * 4;
+ 	    ++section->lma;
+-	    rec += bfd_get_32 (abfd, rec) * 4;
+ 	  }
+ 
+ 	BFD_ASSERT (rec == recend);
--- a/cross/binutils-riscv64/binutils-ld-fix-static-linking.patch
+++ b/cross/binutils-riscv64/binutils-ld-fix-static-linking.patch
@ -0,0 +1,46 @@
+This fixes static linking for our hardened toolchain
+diff --git a/ld/scripttempl/elf.sc b/ld/scripttempl/elf.sc
+index e8126cb..9532bfb 100644
+--- a/ld/scripttempl/elf.sc
+++ b/ld/scripttempl/elf.sc
+@@ -235,8 +235,8 @@ test "${LARGE_SECTIONS}" = "yes" && LARGE_SECTIONS="
+ if test "${ENABLE_INITFINI_ARRAY}" = "yes"; then
+   SORT_INIT_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))"
+   SORT_FINI_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))"
+-  CTORS_IN_INIT_ARRAY="EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors"
+-  DTORS_IN_FINI_ARRAY="EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors"
+  CTORS_IN_INIT_ARRAY="EXCLUDE_FILE (*crtbegin*.o *crtend*.o $OTHER_EXCLUDE_FILES) .ctors"
+  DTORS_IN_FINI_ARRAY="EXCLUDE_FILE (*crtbegin*.o *crtend*.o $OTHER_EXCLUDE_FILES) .dtors"
+ else
+   SORT_INIT_ARRAY="KEEP (*(SORT(.init_array.*)))"
+   SORT_FINI_ARRAY="KEEP (*(SORT(.fini_array.*)))"
+@@ -270,15 +270,14 @@ CTOR=".ctors        ${CONSTRUCTING-0} :
+        doesn't matter which directory crtbegin.o
+        is in.  */
+ 
+-    KEEP (*crtbegin.o(.ctors))
+-    KEEP (*crtbegin?.o(.ctors))
+    KEEP (*crtbegin*.o(.ctors))
+ 
+     /* We don't want to include the .ctor section from
+        the crtend.o file until after the sorted ctors.
+        The .ctor section from the crtend file contains the
+        end of ctors marker and it must be last */
+ 
+-    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))
+    KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .ctors))
+     KEEP (*(SORT(.ctors.*)))
+     KEEP (*(.ctors))
+     ${CONSTRUCTING+${CTOR_END}}
+@@ -286,9 +285,8 @@ CTOR=".ctors        ${CONSTRUCTING-0} :
+ DTOR=".dtors        ${CONSTRUCTING-0} :
+   {
+     ${CONSTRUCTING+${DTOR_START}}
+-    KEEP (*crtbegin.o(.dtors))
+-    KEEP (*crtbegin?.o(.dtors))
+-    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))
+    KEEP (*crtbegin*.o(.dtors))
+    KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .dtors))
+     KEEP (*(SORT(.dtors.*)))
+     KEEP (*(.dtors))
+     ${CONSTRUCTING+${DTOR_END}}
--- a/cross/binutils-riscv64/binutils-mips-disable-assert.patch
+++ b/cross/binutils-riscv64/binutils-mips-disable-assert.patch
@ -0,0 +1,14 @@
+diff -urN binutils-2.35.2.orig/bfd/elfxx-mips.c binutils-2.35.2/bfd/elfxx-mips.c
+--- binutils-2.35.2.orig/bfd/elfxx-mips.c	2021-01-30 01:38:03.000000000 -0700
+++ binutils-2.35.2/bfd/elfxx-mips.c	2021-05-13 17:35:34.706913601 -0600
+@@ -6744,8 +6744,10 @@
+      in the relocation.  */
+   if (h != NULL && ! SYMBOL_REFERENCES_LOCAL (info, &h->root))
+     {
+#if 0
+       BFD_ASSERT (htab->root.target_os == is_vxworks
+ 		  || h->global_got_area != GGA_NONE);
+#endif
+       indx = h->root.dynindx;
+       if (SGI_COMPAT (output_bfd))
+ 	defined_p = h->root.def_regular;
--- a/cross/binutils-riscv64/gold-mips.patch
+++ b/cross/binutils-riscv64/gold-mips.patch
@ -0,0 +1,39 @@
+# DP: Fix gold on mips64 targets.
+
+gold/
+
+2016-08-09  Aurelien Jarno  <aurelien@aurel32.net>
+
+	* configure.tgt: Add mips64el*-*-*|mips64le*-*-* and mips64*-*-*.
+
+ 
+--- a/gold/configure.tgt
+++ b/gold/configure.tgt
+@@ -153,6 +153,13 @@ aarch64*-*)
+  targ_big_endian=false
+  targ_extra_big_endian=true
+  ;;
+mips*64*el*-*-*|mips*64*le*-*-*)
+ targ_obj=mips
+ targ_machine=EM_MIPS_RS3_LE
+ targ_size=64
+ targ_big_endian=false
+ targ_extra_big_endian=true
+ ;;
+ mips*el*-*-*|mips*le*-*-*)
+  targ_obj=mips
+  targ_machine=EM_MIPS_RS3_LE
+@@ -160,6 +167,13 @@ mips*el*-*-*|mips*le*-*-*)
+  targ_big_endian=false
+  targ_extra_big_endian=true
+  ;;
+mips*64*-*-*)
+ targ_obj=mips
+ targ_machine=EM_MIPS
+ targ_size=64
+ targ_big_endian=true
+ targ_extra_big_endian=false
+ ;;
+ mips*-*-*)
+  targ_obj=mips
+  targ_machine=EM_MIPS
--- a/cross/binutils-riscv64/ld-bfd-mips.patch
+++ b/cross/binutils-riscv64/ld-bfd-mips.patch
@ -0,0 +1,19 @@
+--- ./ld/configure.tgt.orig
+++ ./ld/configure.tgt
+@@ -541,12 +541,12 @@
+ 			;;
+ mips*-*-windiss)	targ_emul=elf32mipswindiss
+ 			;;
+-mips64*el-*-linux-*)	targ_emul=elf32ltsmipn32
+-			targ_extra_emuls="elf32btsmipn32 elf32ltsmip elf32btsmip elf64ltsmip elf64btsmip"
+mips64*el-*-linux-*)	targ_emul=elf64ltsmip
+			targ_extra_emuls="elf32ltsmipn32 elf32btsmipn32 elf32ltsmip elf32btsmip elf64btsmip"
+ 			targ_extra_libpath=$targ_extra_emuls
+ 			;;
+-mips64*-*-linux-*)	targ_emul=elf32btsmipn32
+-			targ_extra_emuls="elf32ltsmipn32 elf32btsmip elf32ltsmip elf64btsmip elf64ltsmip"
+mips64*-*-linux-*)	targ_emul=elf64btsmip
+			targ_extra_emuls="elf32btsmipn32 elf32ltsmipn32 elf32btsmip elf32ltsmip elf64ltsmip"
+ 			targ_extra_libpath=$targ_extra_emuls
+ 			;;
+ mips*el-*-linux-*)	targ_emul=elf32ltsmip
--- a/cross/gcc-riscv64/0001-posix_memalign.patch
+++ b/cross/gcc-riscv64/0001-posix_memalign.patch
@ -0,0 +1,39 @@
+From 74c7b0df9971b6bc75d7d172c2819ffd21d51050 Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Fri, 26 Jan 2018 20:32:50 +0000
+Subject: [PATCH] posix_memalign
+
+---
+ gcc/config/i386/pmm_malloc.h | 9 +++++----
+ 1 file changed, 5 insertions(+), 4 deletions(-)
+
+diff --git a/gcc/config/i386/pmm_malloc.h b/gcc/config/i386/pmm_malloc.h
+index 3b2e4f47915..20f790904a2 100644
+--- a/gcc/config/i386/pmm_malloc.h
+++ b/gcc/config/i386/pmm_malloc.h
+@@ -27,12 +27,13 @@
+ #include <stdlib.h>
+ 
+ /* We can't depend on <stdlib.h> since the prototype of posix_memalign
+-   may not be visible.  */
+   may not be visible and we can't pollute the namespace either.  */
+ #ifndef __cplusplus
+-extern int posix_memalign (void **, size_t, size_t);
+extern int _mm_posix_memalign (void **, size_t, size_t)
+ #else
+-extern "C" int posix_memalign (void **, size_t, size_t) throw ();
+extern "C" int _mm_posix_memalign (void **, size_t, size_t) throw ()
+ #endif
+__asm__("posix_memalign");
+ 
+ static __inline void *
+ _mm_malloc (size_t __size, size_t __alignment)
+@@ -42,7 +43,7 @@ _mm_malloc (size_t __size, size_t __alignment)
+     return malloc (__size);
+   if (__alignment == 2 || (sizeof (void *) == 8 && __alignment == 4))
+     __alignment = sizeof (void *);
+-  if (posix_memalign (&__ptr, __alignment, __size) == 0)
+  if (_mm_posix_memalign (&__ptr, __alignment, __size) == 0)
+     return __ptr;
+   else
+     return NULL;
--- a/cross/gcc-riscv64/0002-gcc-poison-system-directories.patch
+++ b/cross/gcc-riscv64/0002-gcc-poison-system-directories.patch
@ -0,0 +1,200 @@
+From dd1e75ff4ecda96957465b34681f245e818928bd Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Fri, 29 Mar 2013 08:59:00 +0400
+Subject: [PATCH] gcc: poison-system-directories
+
+Add /sw/include and /opt/include based on the original
+zecke-no-host-includes.patch patch.  The original patch checked for
+/usr/include, /sw/include and /opt/include and then triggered a failure and
+aborted.
+
+Instead, we add the two missing items to the current scan.  If the user
+wants this to be a failure, they can add "-Werror=poison-system-directories".
+
+Signed-off-by: Mark Hatle <mark.hatle@windriver.com>
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+
+Upstream-Status: Pending
+---
+ gcc/common.opt      |  4 ++++
+ gcc/config.in       |  6 ++++++
+ gcc/configure       | 16 ++++++++++++++++
+ gcc/configure.ac    | 10 ++++++++++
+ gcc/doc/invoke.texi |  9 +++++++++
+ gcc/gcc.cc          |  2 ++
+ gcc/incpath.cc      | 21 +++++++++++++++++++++
+ 7 files changed, 68 insertions(+)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 8a0dafc522d..0357868e22c 100644
+--- a/gcc/common.opt
+++ b/gcc/common.opt
+@@ -710,6 +710,10 @@ Wreturn-local-addr
+ Common Var(warn_return_local_addr) Init(1) Warning
+ Warn about returning a pointer/reference to a local or temporary variable.
+ 
+Wpoison-system-directories
+Common Var(flag_poison_system_directories) Init(1) Warning
+Warn for -I and -L options using system directories if cross compiling
+
+ Wshadow
+ Common Var(warn_shadow) Warning
+ Warn when one variable shadows another.  Same as -Wshadow=global.
+diff --git a/gcc/config.in b/gcc/config.in
+index 64c27c9cfac..f0fbf123aa8 100644
+--- a/gcc/config.in
+++ b/gcc/config.in
+@@ -230,6 +230,12 @@
+ #endif
+ 
+ 
+/* Define to warn for use of native system header directories */
+#ifndef USED_FOR_TARGET
+#undef ENABLE_POISON_SYSTEM_DIRECTORIES
+#endif
+
+
+ /* Define if you want all operations on RTL (the basic data structure of the
+    optimizer and back end) to be checked for dynamic type safety at runtime.
+    This is quite expensive. */
+diff --git a/gcc/configure b/gcc/configure
+index 5ce0557719a..e9060112384 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -1023,6 +1023,7 @@ enable_maintainer_mode
+ enable_link_mutex
+ enable_link_serialization
+ enable_version_specific_runtime_libs
+enable_poison_system_directories
+ enable_plugin
+ enable_host_shared
+ enable_libquadmath_support
+@@ -1785,6 +1786,8 @@ Optional Features:
+   --enable-version-specific-runtime-libs
+                           specify that runtime libraries should be installed
+                           in a compiler-specific directory
+  --enable-poison-system-directories
+                          warn for use of native system header directories
+   --enable-plugin         enable plugin support
+   --enable-host-shared    build host code as shared libraries
+   --disable-libquadmath-support
+@@ -31982,6 +31985,19 @@ if test "${enable_version_specific_runtime_libs+set}" = set; then :
+ fi
+ 
+ 
+# Check whether --enable-poison-system-directories was given.
+if test "${enable_poison_system_directories+set}" = set; then :
+  enableval=$enable_poison_system_directories;
+else
+  enable_poison_system_directories=no
+fi
+
+if test "x${enable_poison_system_directories}" = "xyes"; then
+
+$as_echo "#define ENABLE_POISON_SYSTEM_DIRECTORIES 1" >>confdefs.h
+
+fi
+
+ # Substitute configuration variables
+ 
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 23bee7010a3..75a7048045c 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -7421,6 +7421,16 @@ AC_ARG_ENABLE(version-specific-runtime-libs,
+                 [specify that runtime libraries should be
+                  installed in a compiler-specific directory])])
+ 
+AC_ARG_ENABLE([poison-system-directories],
+             AS_HELP_STRING([--enable-poison-system-directories],
+                            [warn for use of native system header directories]),,
+             [enable_poison_system_directories=no])
+if test "x${enable_poison_system_directories}" = "xyes"; then
+  AC_DEFINE([ENABLE_POISON_SYSTEM_DIRECTORIES],
+           [1],
+           [Define to warn for use of native system header directories])
+fi
+
+ # Substitute configuration variables
+ AC_SUBST(subdirs)
+ AC_SUBST(srcdir)
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 07b440190c3..b2de464798a 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -379,6 +379,7 @@ Objective-C and Objective-C++ Dialects}.
+ -Wpacked  -Wno-packed-bitfield-compat  -Wpacked-not-aligned  -Wpadded @gol
+ -Wparentheses  -Wno-pedantic-ms-format @gol
+ -Wpointer-arith  -Wno-pointer-compare  -Wno-pointer-to-int-cast @gol
+-Wno-poison-system-directories @gol
+ -Wno-pragmas  -Wno-prio-ctor-dtor  -Wredundant-decls @gol
+ -Wrestrict  -Wno-return-local-addr  -Wreturn-type @gol
+ -Wno-scalar-storage-order  -Wsequence-point @gol
+@@ -8029,6 +8030,14 @@ made up of data only and thus requires no special treatment.  But, for
+ most targets, it is made up of code and thus requires the stack to be
+ made executable in order for the program to work properly.
+ 
+@item -Wno-poison-system-directories
+@opindex Wno-poison-system-directories
+Do not warn for @option{-I} or @option{-L} options using system
+directories such as @file{/usr/include} when cross compiling.  This
+option is intended for use in chroot environments when such
+directories contain the correct headers and libraries for the target
+system rather than the host.
+
+ @item -Wfloat-equal
+ @opindex Wfloat-equal
+ @opindex Wno-float-equal
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index bb07cc244e3..47fb5802194 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -1159,6 +1159,8 @@ proper position among the other output files.  */
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
+    %{Wno-poison-system-directories:--no-poison-system-directories} \
+    %{Werror=poison-system-directories:--error-poison-system-directories} \
+     %{static|no-pie|static-pie:} %@{L*} %(mfwrap) %(link_libgcc) " \
+     VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o "" \
+     %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
+diff --git a/gcc/incpath.cc b/gcc/incpath.cc
+index bd2a97938eb..c80f100f476 100644
+--- a/gcc/incpath.cc
+++ b/gcc/incpath.cc
+@@ -26,6 +26,7 @@
+ #include "intl.h"
+ #include "incpath.h"
+ #include "cppdefault.h"
+#include "diagnostic-core.h"
+ 
+ /* Microsoft Windows does not natively support inodes.
+    VMS has non-numeric inodes.  */
+@@ -399,6 +400,26 @@ merge_include_chains (const char *sysroot, cpp_reader *pfile, int verbose)
+ 	}
+       fprintf (stderr, _("End of search list.\n"));
+     }
+
+#ifdef ENABLE_POISON_SYSTEM_DIRECTORIES
+  if (flag_poison_system_directories)
+    {
+       struct cpp_dir *p;
+
+       for (p = heads[INC_QUOTE]; p; p = p->next)
+         {
+          if ((!strncmp (p->name, "/usr/include", 12))
+              || (!strncmp (p->name, "/usr/local/include", 18))
+              || (!strncmp (p->name, "/usr/X11R6/include", 18))
+              || (!strncmp (p->name, "/sw/include", 11))
+              || (!strncmp (p->name, "/opt/include", 12)))
+            warning (OPT_Wpoison_system_directories,
+                     "include location \"%s\" is unsafe for "
+                     "cross-compilation",
+                     p->name);
+         }
+    }
+#endif
+ }
+ 
+ /* Use given -I paths for #include "..." but not #include <...>, and
--- a/cross/gcc-riscv64/0003-specs-turn-on-Wl-z-now-by-default.patch
+++ b/cross/gcc-riscv64/0003-specs-turn-on-Wl-z-now-by-default.patch
@ -0,0 +1,41 @@
+From 40e45739e7d3787acd13b5b9a4c27d843de0ffe2 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:45:49 +0000
+Subject: [PATCH] specs: turn on -Wl,-z,now by default
+
+Previously, we also used to turn on -z relro here, but we now build
+binutils with --enable-relro, which is functionally equivalent.
+
+Binutils does not appear to have a similar option for enabling -z
+now by default.
+---
+ gcc/doc/invoke.texi | 3 +++
+ gcc/gcc.cc          | 1 +
+ 2 files changed, 4 insertions(+)
+
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index b2de464798a..83bd1bde433 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -16872,6 +16872,9 @@ For example, @option{-Wl,-Map,output.map} passes @option{-Map output.map} to the
+ linker.  When using the GNU linker, you can also get the same effect with
+ @option{-Wl,-Map=output.map}.
+ 
+NOTE: In Alpine Linux, for LDFLAGS, the option
+@option{-Wl,-z,now} is used.  To disable, use @option{-Wl,-z,nonow}.
+
+ @item -u @var{symbol}
+ @opindex u
+ Pretend the symbol @var{symbol} is undefined, to force linking of
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 47fb5802194..d18b5d7b59a 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -1157,6 +1157,7 @@ proper position among the other output files.  */
+    "%{flto|flto=*:%<fcompare-debug*} \
+     %{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
+    "%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+   "-z now " \
+    "%X %{o*} %{e*} %{N} %{n} %{r}\
+     %{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!r:%{!nostartfiles:%S}}} \
+     %{Wno-poison-system-directories:--no-poison-system-directories} \
--- a/cross/gcc-riscv64/0004-Turn-on-D_FORTIFY_SOURCE-2-by-default-for-C-C-ObjC-O.patch
+++ b/cross/gcc-riscv64/0004-Turn-on-D_FORTIFY_SOURCE-2-by-default-for-C-C-ObjC-O.patch
@ -0,0 +1,43 @@
+From 666d0aeb808ac9c10d065ae7b196695c81a25a20 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:46:22 +0000
+Subject: [PATCH] Turn on -D_FORTIFY_SOURCE=2 by default for C, C++, ObjC,
+ ObjC++, if the optimization level is > 0
+
+---
+ gcc/c-family/c-cppbuiltin.cc | 4 ++++
+ gcc/doc/invoke.texi          | 6 ++++++
+ 2 files changed, 10 insertions(+)
+
+diff --git a/gcc/c-family/c-cppbuiltin.cc b/gcc/c-family/c-cppbuiltin.cc
+index 4672ae8486a..573c021e1e8 100644
+--- a/gcc/c-family/c-cppbuiltin.cc
+++ b/gcc/c-family/c-cppbuiltin.cc
+@@ -1510,6 +1510,10 @@ c_cpp_builtins (cpp_reader *pfile)
+   builtin_define_with_value ("__REGISTER_PREFIX__", REGISTER_PREFIX, 0);
+   builtin_define_with_value ("__USER_LABEL_PREFIX__", user_label_prefix, 0);
+ 
+  /* Fortify Source enabled by default for optimization levels > 0 */
+  if (optimize)
+    builtin_define_with_int_value ("_FORTIFY_SOURCE", 2);
+
+   /* Misc.  */
+   if (flag_gnu89_inline)
+     cpp_define (pfile, "__GNUC_GNU_INLINE__");
+diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
+index 83bd1bde433..dda299a9987 100644
+--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
+@@ -10896,6 +10896,12 @@ also turns on the following optimization flags:
+ Please note the warning under @option{-fgcse} about
+ invoking @option{-O2} on programs that use computed gotos.
+ 
+NOTE: In Alpine Linux, @option{-D_FORTIFY_SOURCE=2} is
+set by default, and is activated when @option{-O} is set to 2 or higher.
+This enables additional compile-time and run-time checks for several libc
+functions.  To disable, specify either @option{-U_FORTIFY_SOURCE} or
+@option{-D_FORTIFY_SOURCE=0}.
+
+ @item -O3
+ @opindex O3
+ Optimize yet more.  @option{-O3} turns on all optimizations specified
--- a/cross/gcc-riscv64/0005-On-linux-targets-pass-as-needed-by-default-to-the-li.patch
+++ b/cross/gcc-riscv64/0005-On-linux-targets-pass-as-needed-by-default-to-the-li.patch
@ -0,0 +1,269 @@
+From 75d1a35180cf0967f062765314bf091a64032062 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:46:56 +0000
+Subject: [PATCH] On linux targets pass --as-needed by default to the linker,
+ but always link the sanitizer libraries with --no-as-needed.
+
+---
+ gcc/config/aarch64/aarch64-linux.h |  1 +
+ gcc/config/alpha/linux-elf.h       |  2 +-
+ gcc/config/arm/linux-elf.h         |  1 +
+ gcc/config/gnu-user.h              |  6 +++---
+ gcc/config/i386/gnu-user.h         |  2 +-
+ gcc/config/i386/gnu-user64.h       |  1 +
+ gcc/config/ia64/linux.h            |  2 +-
+ gcc/config/mips/gnu-user.h         |  1 +
+ gcc/config/riscv/linux.h           |  1 +
+ gcc/config/rs6000/linux64.h        |  4 ++--
+ gcc/config/rs6000/sysv4.h          |  2 +-
+ gcc/config/s390/linux.h            |  2 +-
+ gcc/config/sparc/linux.h           |  2 +-
+ gcc/gcc.cc                         | 28 ++++++++++++++++++++--------
+ 14 files changed, 36 insertions(+), 19 deletions(-)
+
+diff --git a/gcc/config/aarch64/aarch64-linux.h b/gcc/config/aarch64/aarch64-linux.h
+index 5e4553d79f5..b516f3ef97f 100644
+--- a/gcc/config/aarch64/aarch64-linux.h
+++ b/gcc/config/aarch64/aarch64-linux.h
+@@ -35,6 +35,7 @@
+ #define CPP_SPEC "%{pthread:-D_REENTRANT}"
+ 
+ #define LINUX_TARGET_LINK_SPEC  "%{h*}		\
+   --as-needed					\
+    %{static:-Bstatic}				\
+    %{shared:-shared}				\
+    %{symbolic:-Bsymbolic}			\
+diff --git a/gcc/config/alpha/linux-elf.h b/gcc/config/alpha/linux-elf.h
+index 17f16a55910..9ec667e9a5e 100644
+--- a/gcc/config/alpha/linux-elf.h
+++ b/gcc/config/alpha/linux-elf.h
+@@ -37,7 +37,7 @@ along with GCC; see the file COPYING3.  If not see
+ 
+ #define ELF_DYNAMIC_LINKER	GNU_USER_DYNAMIC_LINKER
+ 
+-#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax}		\
+#define LINK_SPEC "-m elf64alpha --as-needed %{G*} %{relax:-relax}		\
+   %{O*:-O3} %{!O*:-O1}						\
+   %{shared:-shared}						\
+   %{!shared:							\
+diff --git a/gcc/config/arm/linux-elf.h b/gcc/config/arm/linux-elf.h
+index df3da67c4f0..7532bc29f9b 100644
+--- a/gcc/config/arm/linux-elf.h
+++ b/gcc/config/arm/linux-elf.h
+@@ -70,6 +70,7 @@
+      %{rdynamic:-export-dynamic} \
+      %{!shared:-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}} \
+    -X \
+   --as-needed \
+    %{mbig-endian:-EB} %{mlittle-endian:-EL}" \
+    SUBTARGET_EXTRA_LINK_SPEC
+ 
+diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
+index 857c0e077bf..8433e56c3e1 100644
+--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
+@@ -136,7 +136,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LIBASAN_EARLY_SPEC "%{!shared:libasan_preinit%O%s} " \
+   "%{static-libasan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}"
+  LD_DYNAMIC_OPTION "}}%{!static-libasan:%{!fuse-ld=gold:--push-state} --no-as-needed -lasan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBHWASAN_EARLY_SPEC
+ #define LIBHWASAN_EARLY_SPEC "%{static-libhwasan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -lhwasan --no-whole-archive " \
+@@ -145,12 +145,12 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LIBTSAN_EARLY_SPEC "%{!shared:libtsan_preinit%O%s} " \
+   "%{static-libtsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -ltsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-libtsan:-ltsan}"
+  LD_DYNAMIC_OPTION "}}%{!static-libtsan:%{!fuse-ld=gold:--push-state} --no-as-needed -ltsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #undef LIBLSAN_EARLY_SPEC
+ #define LIBLSAN_EARLY_SPEC "%{!shared:liblsan_preinit%O%s} " \
+   "%{static-liblsan:%{!shared:" \
+   LD_STATIC_OPTION " --whole-archive -llsan --no-whole-archive " \
+-  LD_DYNAMIC_OPTION "}}%{!static-liblsan:-llsan}"
+  LD_DYNAMIC_OPTION "}}%{!static-liblsan:%{!fuse-ld=gold:--push-state} --no-as-needed -llsan %{fuse-ld=gold:--as-needed;:--pop-state}}"
+ #endif
+ 
+ #undef TARGET_F951_OPTIONS
+diff --git a/gcc/config/i386/gnu-user.h b/gcc/config/i386/gnu-user.h
+index 0102b2a6f3b..994414c1845 100644
+--- a/gcc/config/i386/gnu-user.h
+++ b/gcc/config/i386/gnu-user.h
+@@ -68,7 +68,7 @@ along with GCC; see the file COPYING3.  If not see
+   { "link_emulation", GNU_USER_LINK_EMULATION },\
+   { "dynamic_linker", GNU_USER_DYNAMIC_LINKER }
+ 
+-#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) %{shared:-shared} \
+#define GNU_USER_TARGET_LINK_SPEC "-m %(link_emulation) --as-needed %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+       %{!static-pie: \
+diff --git a/gcc/config/i386/gnu-user64.h b/gcc/config/i386/gnu-user64.h
+index abc8cf624ca..fe656aeae27 100644
+--- a/gcc/config/i386/gnu-user64.h
+++ b/gcc/config/i386/gnu-user64.h
+@@ -56,6 +56,7 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+                   "%{" SPEC_64 ":-m " GNU_USER_LINK_EMULATION64 "} \
+                    %{" SPEC_32 ":-m " GNU_USER_LINK_EMULATION32 "} \
+                    %{" SPEC_X32 ":-m " GNU_USER_LINK_EMULATIONX32 "} \
+  --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/config/ia64/linux.h b/gcc/config/ia64/linux.h
+index 93510098ccc..3813e536423 100644
+--- a/gcc/config/ia64/linux.h
+++ b/gcc/config/ia64/linux.h
+@@ -58,7 +58,7 @@ do {						\
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux-ia64.so.2"
+ 
+ #undef LINK_SPEC
+-#define LINK_SPEC "\
+#define LINK_SPEC " --as-needed \
+   %{shared:-shared} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/config/mips/gnu-user.h b/gcc/config/mips/gnu-user.h
+index 6aad7192e69..e1256a55add 100644
+--- a/gcc/config/mips/gnu-user.h
+++ b/gcc/config/mips/gnu-user.h
+@@ -55,6 +55,7 @@ along with GCC; see the file COPYING3.  If not see
+ #undef GNU_USER_TARGET_LINK_SPEC
+ #define GNU_USER_TARGET_LINK_SPEC "\
+   %{G*} %{EB} %{EL} %{mips*} %{shared} \
+ -as-needed \
+   %{!shared: \
+     %{!static: \
+       %{rdynamic:-export-dynamic} \
+diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
+index 38803723ba9..3067ed6eac8 100644
+--- a/gcc/config/riscv/linux.h
+++ b/gcc/config/riscv/linux.h
+@@ -58,6 +58,7 @@ along with GCC; see the file COPYING3.  If not see
+   "%{mabi=ilp32:_ilp32}"
+ 
+ #define LINK_SPEC "\
+-as-needed \
+ -melf" XLEN_SPEC DEFAULT_ENDIAN_SPEC "riscv" LD_EMUL_SUFFIX " \
+ %{mno-relax:--no-relax} \
+ %{mbig-endian:-EB} \
+diff --git a/gcc/config/rs6000/linux64.h b/gcc/config/rs6000/linux64.h
+index b2a7afabc73..34ceb4e4fce 100644
+--- a/gcc/config/rs6000/linux64.h
+++ b/gcc/config/rs6000/linux64.h
+@@ -377,13 +377,13 @@ extern int dot_symbols;
+ 					   " -m elf64ppc")
+ #endif
+ 
+-#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC32 LINK_OS_LINUX_EMUL32 " --as-needed %{!shared: %{!static: \
+   %{!static-pie: \
+     %{rdynamic:-export-dynamic} \
+     -dynamic-linker " GNU_USER_DYNAMIC_LINKER32 "}}} \
+   %(link_os_extra_spec32)"
+ 
+-#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC64 LINK_OS_LINUX_EMUL64 " --as-needed %{!shared: %{!static: \
+   %{!static-pie: \
+     %{rdynamic:-export-dynamic} \
+     -dynamic-linker " GNU_USER_DYNAMIC_LINKER64 "}}} \
+diff --git a/gcc/config/rs6000/sysv4.h b/gcc/config/rs6000/sysv4.h
+index 7e2519de5d4..61215a7a1b3 100644
+--- a/gcc/config/rs6000/sysv4.h
+++ b/gcc/config/rs6000/sysv4.h
+@@ -788,7 +788,7 @@ GNU_USER_TARGET_CC1_SPEC
+ #define GNU_USER_DYNAMIC_LINKER GLIBC_DYNAMIC_LINKER
+ #endif
+ 
+-#define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
+#define LINK_OS_LINUX_SPEC "-m elf32ppclinux --as-needed %{!shared: %{!static: \
+   %{rdynamic:-export-dynamic} \
+   -dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
+ 
+diff --git a/gcc/config/s390/linux.h b/gcc/config/s390/linux.h
+index d7b7e7a7b02..d2287f14f2e 100644
+--- a/gcc/config/s390/linux.h
+++ b/gcc/config/s390/linux.h
+@@ -82,7 +82,7 @@ along with GCC; see the file COPYING3.  If not see
+ 
+ #undef  LINK_SPEC
+ #define LINK_SPEC \
+-  "%{m31:-m elf_s390}%{m64:-m elf64_s390} \
+  "%{m31:-m elf_s390}%{m64:-m elf64_s390} --as-needed \
+    %{shared:-shared} \
+    %{!shared: \
+       %{static:-static} \
+diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h
+index 6a809e9092d..93bfb92d3ff 100644
+--- a/gcc/config/sparc/linux.h
+++ b/gcc/config/sparc/linux.h
+@@ -81,7 +81,7 @@ extern const char *host_detect_local_cpu (int argc, const char **argv);
+ #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
+ 
+ #undef  LINK_SPEC
+-#define LINK_SPEC "-m elf32_sparc %{shared:-shared} \
+#define LINK_SPEC "-m elf32_sparc --as-needed %{shared:-shared} \
+   %{!mno-relax:%{!r:-relax}} \
+   %{!shared: \
+     %{!static: \
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index d18b5d7b59a..3b76311b544 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -744,8 +744,11 @@ proper position among the other output files.  */
+ #ifdef LIBASAN_EARLY_SPEC
+ #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION \
+-		     "} -lasan %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+#define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libasan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -lasan " \
+		     " %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libasan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBASAN_LIBS
+ #else
+ #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+@@ -780,8 +783,11 @@ proper position among the other output files.  */
+ #ifdef LIBTSAN_EARLY_SPEC
+ #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION \
+-		     "} -ltsan %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -ltsan " \
+		     " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBTSAN_LIBS
+ #else
+ #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+@@ -798,8 +804,11 @@ proper position among the other output files.  */
+ #ifdef LIBLSAN_EARLY_SPEC
+ #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+-#define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION \
+-		     "} -llsan %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-liblsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -llsan " \
+		     " %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-liblsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBLSAN_LIBS
+ #else
+ #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+@@ -814,8 +823,11 @@ proper position among the other output files.  */
+ #define STATIC_LIBUBSAN_LIBS \
+   " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
+ #ifdef HAVE_LD_STATIC_DYNAMIC
+-#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION \
+-		     "} -lubsan %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+#define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION "}" \
+		     " %{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " -lubsan " \
+		     " %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+		     " %{!static-libubsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+ 		     STATIC_LIBUBSAN_LIBS
+ #else
+ #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
--- a/cross/gcc-riscv64/0006-Enable-Wformat-and-Wformat-security-by-default.patch
+++ b/cross/gcc-riscv64/0006-Enable-Wformat-and-Wformat-security-by-default.patch
@ -0,0 +1,31 @@
+From c664283dd30949c5299d1c45bd5740bcfe993d22 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:47:43 +0000
+Subject: [PATCH] Enable -Wformat and -Wformat-security by default.
+
+---
+ gcc/c-family/c.opt | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/c-family/c.opt b/gcc/c-family/c.opt
+index 07da40ef43b..8683f706426 100644
+--- a/gcc/c-family/c.opt
+++ b/gcc/c-family/c.opt
+@@ -692,7 +692,7 @@ Warn about function calls with format strings that write past the end
+ of the destination region.  Same as -Wformat-overflow=1.
+ 
+ Wformat-security
+-C ObjC C++ ObjC++ Var(warn_format_security) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+C ObjC C++ ObjC++ Var(warn_format_security) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wformat=, warn_format >= 2, 0)
+ Warn about possible security problems with format functions.
+ 
+ Wformat-signedness
+@@ -713,7 +713,7 @@ C ObjC C++ ObjC++ Var(warn_format_zero_length) Warning LangEnabledBy(C ObjC C++
+ Warn about zero-length formats.
+ 
+ Wformat=
+-C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
+C ObjC C++ ObjC++ Joined RejectNegative UInteger Var(warn_format) Init(1) Warning LangEnabledBy(C ObjC C++ ObjC++,Wall, 1, 0) IntegerRange(0, 2)
+ Warn about printf/scanf/strftime/strfmon format string anomalies.
+ 
+ Wformat-overflow=
--- a/cross/gcc-riscv64/0007-Enable-Wtrampolines-by-default.patch
+++ b/cross/gcc-riscv64/0007-Enable-Wtrampolines-by-default.patch
@ -0,0 +1,22 @@
+From e4d0ec43e772b6dc7c3708aed5309897df26a125 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:48:24 +0000
+Subject: [PATCH] Enable -Wtrampolines by default.
+
+---
+ gcc/common.opt | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/common.opt b/gcc/common.opt
+index 0357868e22c..6d5e5eebe60 100644
+--- a/gcc/common.opt
+++ b/gcc/common.opt
+@@ -802,7 +802,7 @@ Common Var(warn_system_headers) Warning
+ Do not suppress warnings from system headers.
+ 
+ Wtrampolines
+-Common Var(warn_trampolines) Warning
+Common Var(warn_trampolines) Init(1) Warning
+ Warn whenever a trampoline is generated.
+ 
+ Wtrivial-auto-var-init
--- a/cross/gcc-riscv64/0008-Disable-ssp-on-nostdlib-nodefaultlibs-and-ffreestand.patch
+++ b/cross/gcc-riscv64/0008-Disable-ssp-on-nostdlib-nodefaultlibs-and-ffreestand.patch
@ -0,0 +1,50 @@
+From 27e5d5bd3fed9006a2958d2b09750d15ad07383b Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:49:40 +0000
+Subject: [PATCH] Disable ssp on -nostdlib, -nodefaultlibs and -ffreestanding
+ Change the buffer size.
+
+---
+ gcc/gcc.cc     | 8 +++++++-
+ gcc/params.opt | 2 +-
+ 2 files changed, 8 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 3b76311b544..cc99d0b7aa1 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -996,6 +996,12 @@ proper position among the other output files.  */
+ #define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
+ #endif
+ 
+#ifdef ENABLE_DEFAULT_SSP
+#define NO_SSP_SPEC "%{nostdlib|nodefaultlibs|ffreestanding:-fno-stack-protector} "
+#else
+#define NO_SSP_SPEC ""
+#endif
+
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+@@ -1295,7 +1301,7 @@ static const char *cc1_options =
+  %{-version:--version}\
+  %{-help=*:--help=%*}\
+  %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %w%b.s}}}\
+- %{fsyntax-only:-o %j} %{-param*}\
+ %{fsyntax-only:-o %j} %{-param*} " NO_SSP_SPEC "\
+  %{coverage:-fprofile-arcs -ftest-coverage}\
+  %{fprofile-arcs|fprofile-generate*|coverage:\
+    %{!fprofile-update=single:\
+diff --git a/gcc/params.opt b/gcc/params.opt
+index b88e1372005..82a7e25dd2f 100644
+--- a/gcc/params.opt
+++ b/gcc/params.opt
+@@ -1012,7 +1012,7 @@ Common Joined UInteger Var(param_ssa_name_def_chain_limit) Init(512) Param Optim
+ The maximum number of SSA_NAME assignments to follow in determining a value.
+ 
+ -param=ssp-buffer-size=
+-Common Joined UInteger Var(param_ssp_buffer_size) Init(8) IntegerRange(1, 65536) Param Optimization
+Common Joined UInteger Var(param_ssp_buffer_size) Init(4) IntegerRange(1, 65536) Param Optimization
+ The lower bound for a buffer to be considered for stack smashing protection.
+ 
+ -param=stack-clash-protection-guard-size=
--- a/cross/gcc-riscv64/0009-Ensure-that-msgfmt-doesn-t-encounter-problems-during.patch
+++ b/cross/gcc-riscv64/0009-Ensure-that-msgfmt-doesn-t-encounter-problems-during.patch
@ -0,0 +1,51 @@
+From 83bf2a316222e2fe0b72968cadf4e334d41173f6 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:50:33 +0000
+Subject: [PATCH] Ensure that msgfmt doesn't encounter problems during gcc
+ bootstrapping.
+
+Solves error messages like the following:
+
+msgfmt: /var/tmp/portage/sys-devel/gcc-4.1.2/work/build/./gcc/libgcc_s.so.1: version `GCC_4.2.0' not found (required by /usr/lib/gcc/x86_64-pc-linux-gnu/4.5.3/libstdc++.so.6)
+
+The libgcc_s.so used during build doesn't satisfy the needs of the
+libstdc++.so that msgfmt is linked against. On the other hand, msgfmt
+is used as a stand-alone application here, and what library it uses
+behind the scenes is of no concern to the gcc build process.
+Therefore, simply invoking it "as usual", i.e. without any special
+library path, will make it work as expected here.
+
+2011-09-19 Martin von Gagern
+
+References:
+https://bugs.gentoo.org/372377
+https://bugs.gentoo.org/295480
+---
+ libstdc++-v3/po/Makefile.am | 1 +
+ libstdc++-v3/po/Makefile.in | 1 +
+ 2 files changed, 2 insertions(+)
+
+diff --git a/libstdc++-v3/po/Makefile.am b/libstdc++-v3/po/Makefile.am
+index 8f51544989e..5329804d136 100644
+--- a/libstdc++-v3/po/Makefile.am
+++ b/libstdc++-v3/po/Makefile.am
+@@ -38,6 +38,7 @@ MSGFMT = msgfmt
+ EXTRA_DIST = string_literals.cc POTFILES.in $(PACKAGE).pot $(LOCALE_IN)
+ 
+ .po.mo:
+	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
+diff --git a/libstdc++-v3/po/Makefile.in b/libstdc++-v3/po/Makefile.in
+index 243f3db7b72..822210781fa 100644
+--- a/libstdc++-v3/po/Makefile.in
+++ b/libstdc++-v3/po/Makefile.in
+@@ -561,6 +561,7 @@ uninstall-am:
+ 
+ 
+ .po.mo:
+	env --unset=LD_LIBRARY_PATH \
+ 	$(MSGFMT) -o $@ $<
+ 
+ all-local: all-local-$(USE_NLS)
--- a/cross/gcc-riscv64/0010-Don-t-declare-asprintf-if-defined-as-a-macro.patch
+++ b/cross/gcc-riscv64/0010-Don-t-declare-asprintf-if-defined-as-a-macro.patch
@ -0,0 +1,25 @@
+From 190064993cd8ddbd48015c1fc1916e4110a97733 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:52:07 +0000
+Subject: [PATCH] Don't declare asprintf if defined as a macro.
+
+---
+ include/libiberty.h | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/include/libiberty.h b/include/libiberty.h
+index a65ced9c820..eb20ab0f95f 100644
+--- a/include/libiberty.h
+++ b/include/libiberty.h
+@@ -652,8 +652,11 @@ extern void *bsearch_r (const void *, const void *,
+ /* Like sprintf but provides a pointer to malloc'd storage, which must
+    be freed by the caller.  */
+ 
+/* asprintf may be declared as a macro by glibc with __USE_FORTIFY_LEVEL.  */
+#ifndef asprintf
+ extern int asprintf (char **, const char *, ...) ATTRIBUTE_PRINTF_2;
+ #endif
+#endif
+ 
+ /* Like asprintf but allocates memory without fail. This works like
+    xmalloc.  */
--- a/cross/gcc-riscv64/0011-libiberty-copy-PIC-objects-during-build-process.patch
+++ b/cross/gcc-riscv64/0011-libiberty-copy-PIC-objects-during-build-process.patch
@ -0,0 +1,21 @@
+From 838e1daa955d9013c462be3471497cb39641e951 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:53:00 +0000
+Subject: [PATCH] libiberty: copy PIC objects during build process
+
+---
+ libiberty/Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/libiberty/Makefile.in b/libiberty/Makefile.in
+index 1b17c2e3a47..8db1176df2e 100644
+--- a/libiberty/Makefile.in
+++ b/libiberty/Makefile.in
+@@ -265,6 +265,7 @@ $(TARGETLIB): $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS)
+ 	  $(AR) $(AR_FLAGS) $(TARGETLIB) \
+ 	    $(REQUIRED_OFILES) $(EXTRA_OFILES) $(LIBOBJS); \
+ 	  $(RANLIB) $(TARGETLIB); \
+	  cp $(TARGETLIB) ../ ; \
+ 	  cd ..; \
+ 	else true; fi
+ 
--- a/cross/gcc-riscv64/0012-libitm-disable-FORTIFY.patch
+++ b/cross/gcc-riscv64/0012-libitm-disable-FORTIFY.patch
@ -0,0 +1,30 @@
+From 717346fbbd6642ba6b0c3af2deb3771794346507 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:53:36 +0000
+Subject: [PATCH] libitm: disable FORTIFY
+
+---
+ libitm/configure.tgt | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/libitm/configure.tgt b/libitm/configure.tgt
+index 06e90973ef3..669e64236c3 100644
+--- a/libitm/configure.tgt
+++ b/libitm/configure.tgt
+@@ -47,6 +47,16 @@ if test "$gcc_cv_have_tls" = yes ; then
+   esac
+ fi
+ 
+# FIXME: error: inlining failed in call to always_inline 
+# ‘int vfprintf(FILE*, const char*, __va_list_tag*)’
+# : function body can be overwritten at link time
+# Disable Fortify in libitm for now. #508852
+case "${target}" in
+    *-*-linux*)
+	XCFLAGS="${XCFLAGS} -U_FORTIFY_SOURCE"
+	;;
+esac
+
+ # Map the target cpu to an ARCH sub-directory.  At the same time,
+ # work out any special compilation flags as necessary.
+ case "${target_cpu}" in
--- a/cross/gcc-riscv64/0013-libgcc_s.patch
+++ b/cross/gcc-riscv64/0013-libgcc_s.patch
@ -0,0 +1,54 @@
+From 048c394eb709bfd216e307c1b92ac7f8a7e7758b Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 24 Oct 2015 20:09:53 +0000
+Subject: [PATCH] libgcc_s
+
+---
+ gcc/config/i386/i386-expand.cc | 4 ++--
+ libgcc/config/i386/cpuinfo.c   | 6 +++---
+ libgcc/config/i386/t-linux     | 2 +-
+ 3 files changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/config/i386/i386-expand.cc b/gcc/config/i386/i386-expand.cc
+index 31780b6daf7..d89898846e1 100644
+--- a/gcc/config/i386/i386-expand.cc
+++ b/gcc/config/i386/i386-expand.cc
+@@ -12338,10 +12338,10 @@ ix86_expand_builtin (tree exp, rtx target, rtx subtarget,
+     {
+     case IX86_BUILTIN_CPU_INIT:
+       {
+-	/* Make it call __cpu_indicator_init in libgcc.  */
+	/* Make it call __cpu_indicator_init in libgcc.a.  */
+ 	tree call_expr, fndecl, type;
+ 	type = build_function_type_list (integer_type_node, NULL_TREE);
+-	fndecl = build_fn_decl ("__cpu_indicator_init", type);
+	fndecl = build_fn_decl ("__cpu_indicator_init_local", type);
+ 	call_expr = build_call_expr (fndecl, 0);
+ 	return expand_expr (call_expr, target, mode, EXPAND_NORMAL);
+       }
+diff --git a/libgcc/config/i386/cpuinfo.c b/libgcc/config/i386/cpuinfo.c
+index dab1d98060f..cf824b4114a 100644
+--- a/libgcc/config/i386/cpuinfo.c
+++ b/libgcc/config/i386/cpuinfo.c
+@@ -63,7 +63,7 @@ __cpu_indicator_init (void)
+ 			     __cpu_features2);
+ }
+ 
+-#if defined SHARED && defined USE_ELF_SYMVER
+-__asm__ (".symver __cpu_indicator_init, __cpu_indicator_init@GCC_4.8.0");
+-__asm__ (".symver __cpu_model, __cpu_model@GCC_4.8.0");
+#ifndef SHARED
+int __cpu_indicator_init_local (void)
+  __attribute__ ((weak, alias ("__cpu_indicator_init")));
+ #endif
+diff --git a/libgcc/config/i386/t-linux b/libgcc/config/i386/t-linux
+index 8506a635790..564296f788e 100644
+--- a/libgcc/config/i386/t-linux
+++ b/libgcc/config/i386/t-linux
+@@ -3,5 +3,5 @@
+ # t-slibgcc-elf-ver and t-linux
+ SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-glibc.ver
+ 
+-HOST_LIBGCC2_CFLAGS += -mlong-double-80 -DUSE_ELF_SYMVER $(CET_FLAGS)
+HOST_LIBGCC2_CFLAGS += -mlong-double-80 $(CET_FLAGS)
+ CRTSTUFF_T_CFLAGS += $(CET_FLAGS)
--- a/cross/gcc-riscv64/0014-nopie.patch
+++ b/cross/gcc-riscv64/0014-nopie.patch
@ -0,0 +1,72 @@
+From db28b1e0f3b06325026ec5b5e7cdca4e9992e05c Mon Sep 17 00:00:00 2001
+From: Szabolcs Nagy <nsz@port70.net>
+Date: Sat, 7 Nov 2015 02:08:05 +0000
+Subject: [PATCH] nopie
+
+---
+ gcc/configure    | 27 +++++++++++++++++++++++++++
+ gcc/configure.ac | 13 +++++++++++++
+ 2 files changed, 40 insertions(+)
+
+diff --git a/gcc/configure b/gcc/configure
+index e9060112384..2f6b3265a6c 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -32497,6 +32497,33 @@ fi
+ $as_echo "$gcc_cv_no_pie" >&6; }
+ if test "$gcc_cv_no_pie" = "yes"; then
+   NO_PIE_FLAG="-no-pie"
+else
+  # Check if -nopie works.
+  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -nopie option" >&5
+$as_echo_n "checking for -nopie option... " >&6; }
+if test "${gcc_cv_nopie+set}" = set; then :
+  $as_echo_n "(cached) " >&6
+else
+  saved_LDFLAGS="$LDFLAGS"
+     LDFLAGS="$LDFLAGS -nopie"
+     cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+int main(void) {return 0;}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+  gcc_cv_nopie=yes
+else
+  gcc_cv_nopie=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+     LDFLAGS="$saved_LDFLAGS"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_nopie" >&5
+$as_echo "$gcc_cv_nopie" >&6; }
+  if test "$gcc_cv_nopie" = "yes"; then
+    NO_PIE_FLAG="-nopie"
+  fi
+ fi
+ 
+ 
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index 75a7048045c..e683d3a7a5f 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -7681,6 +7681,19 @@ AC_CACHE_CHECK([for -no-pie option],
+    LDFLAGS="$saved_LDFLAGS"])
+ if test "$gcc_cv_no_pie" = "yes"; then
+   NO_PIE_FLAG="-no-pie"
+else
+  # Check if -nopie works.
+  AC_CACHE_CHECK([for -nopie option],
+    [gcc_cv_nopie],
+    [saved_LDFLAGS="$LDFLAGS"
+     LDFLAGS="$LDFLAGS -nopie"
+     AC_LINK_IFELSE([int main(void) {return 0;}],
+       [gcc_cv_nopie=yes],
+       [gcc_cv_nopie=no])
+     LDFLAGS="$saved_LDFLAGS"])
+  if test "$gcc_cv_nopie" = "yes"; then
+    NO_PIE_FLAG="-nopie"
+  fi
+ fi
+ AC_SUBST([NO_PIE_FLAG])
+ 
--- a/cross/gcc-riscv64/0015-dlang-use-libucontext-on-mips64.patch
+++ b/cross/gcc-riscv64/0015-dlang-use-libucontext-on-mips64.patch
@ -0,0 +1,21 @@
+From 686e85d8a05f9f9e6c983afb13f937bd88fe84dd Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:18:32 +0000
+Subject: [PATCH] dlang: use libucontext on mips64
+
+---
+ libphobos/configure.tgt | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/libphobos/configure.tgt b/libphobos/configure.tgt
+index 0063dd23249..c5e782a1238 100644
+--- a/libphobos/configure.tgt
+++ b/libphobos/configure.tgt
+@@ -38,6 +38,7 @@ case "${target}" in
+ 	;;
+   mips*-*-linux*)
+ 	LIBPHOBOS_SUPPORTED=yes
+	LIBDRUNTIME_NEEDS_UCONTEXT=yes
+ 	;;
+   power*-*-freebsd*)
+ 	LIBPHOBOS_SUPPORTED=yes
--- a/cross/gcc-riscv64/0016-ada-fix-shared-linking.patch
+++ b/cross/gcc-riscv64/0016-ada-fix-shared-linking.patch
@ -0,0 +1,39 @@
+From fd642f8cd61849a9dc169588be5562ceda96a889 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:59:16 +0000
+Subject: [PATCH] ada: fix shared linking
+
+---
+ gcc/ada/link.c | 12 ++++++------
+ 1 file changed, 6 insertions(+), 6 deletions(-)
+
+diff --git a/gcc/ada/link.c b/gcc/ada/link.c
+index a7574efb472..0ad0d66463c 100644
+--- a/gcc/ada/link.c
+++ b/gcc/ada/link.c
+@@ -107,9 +107,9 @@ const char *__gnat_default_libgcc_subdir = "lib";
+    || defined (__NetBSD__) || defined (__OpenBSD__) \
+    || defined (__QNX__)
+ const char *__gnat_object_file_option = "-Wl,@";
+-const char *__gnat_run_path_option = "-Wl,-rpath,";
+-char __gnat_shared_libgnat_default = STATIC;
+-char __gnat_shared_libgcc_default = STATIC;
+const char *__gnat_run_path_option = "";
+char __gnat_shared_libgnat_default = SHARED;
+char __gnat_shared_libgcc_default = SHARED;
+ int __gnat_link_max = 8192;
+ unsigned char __gnat_objlist_file_supported = 1;
+ const char *__gnat_object_library_extension = ".a";
+@@ -129,9 +129,9 @@ const char *__gnat_default_libgcc_subdir = "lib";
+ 
+ #elif defined (__linux__) || defined (__GLIBC__)
+ const char *__gnat_object_file_option = "-Wl,@";
+-const char *__gnat_run_path_option = "-Wl,-rpath,";
+-char __gnat_shared_libgnat_default = STATIC;
+-char __gnat_shared_libgcc_default = STATIC;
+const char *__gnat_run_path_option = "";
+char __gnat_shared_libgnat_default = SHARED;
+char __gnat_shared_libgcc_default = SHARED;
+ int __gnat_link_max = 8192;
+ unsigned char __gnat_objlist_file_supported = 1;
+ const char *__gnat_object_library_extension = ".a";
--- a/cross/gcc-riscv64/0017-build-fix-CXXFLAGS_FOR_BUILD-passing.patch
+++ b/cross/gcc-riscv64/0017-build-fix-CXXFLAGS_FOR_BUILD-passing.patch
@ -0,0 +1,21 @@
+From a547632f5c7caec4a164e8d5e5b568fb7a461365 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 06:59:43 +0000
+Subject: [PATCH] build: fix CXXFLAGS_FOR_BUILD passing
+
+---
+ Makefile.in | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/Makefile.in b/Makefile.in
+index 593495e1650..b96f60e33e2 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -176,6 +176,7 @@ BUILD_EXPORTS = \
+ # built for the build system to override those in BASE_FLAGS_TO_PASS.
+ EXTRA_BUILD_FLAGS = \
+ 	CFLAGS="$(CFLAGS_FOR_BUILD)" \
+	CXXFLAGS="$(CXXFLAGS_FOR_BUILD)" \
+ 	LDFLAGS="$(LDFLAGS_FOR_BUILD)"
+ 
+ # This is the list of directories to built for the host system.
--- a/cross/gcc-riscv64/0018-add-fortify-headers-paths.patch
+++ b/cross/gcc-riscv64/0018-add-fortify-headers-paths.patch
@ -0,0 +1,22 @@
+From 5bd37f8ee93a0fe1a3f841f48ed6626e7e0aa19d Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:01:06 +0000
+Subject: [PATCH] add fortify-headers paths
+
+---
+ gcc/config/linux.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+diff --git a/gcc/config/linux.h b/gcc/config/linux.h
+index 74f70793d90..61b07f319f6 100644
+--- a/gcc/config/linux.h
+++ b/gcc/config/linux.h
+@@ -172,6 +172,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ 
+ #ifdef NATIVE_SYSTEM_HEADER_DIR
+ #define INCLUDE_DEFAULTS_MUSL_NATIVE			\
+    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 2 },	\
+    { NATIVE_SYSTEM_HEADER_DIR "/fortify", 0, 0, 0, 1, 0 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 2 },	\
+     { NATIVE_SYSTEM_HEADER_DIR, 0, 0, 0, 1, 0 },
+ #else
--- a/cross/gcc-riscv64/0019-Alpine-musl-package-provides-libssp_nonshared.a.-We-.patch
+++ b/cross/gcc-riscv64/0019-Alpine-musl-package-provides-libssp_nonshared.a.-We-.patch
@ -0,0 +1,28 @@
+From d2577dc78a1f159e5c41fd0b53e73fa0e264cb52 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Timo=20Ter=C3=A4s?= <timo.teras@iki.fi>
+Date: Fri, 21 Aug 2020 07:03:00 +0000
+Subject: [PATCH] Alpine musl package provides libssp_nonshared.a. We link to
+ it unconditionally, as otherwise we get link failures if some objects are
+ -fstack-protector built and final link happens with -fno-stack-protector.
+ This seems to be the common case when bootstrapping gcc, the piepatches do
+ not seem to fully fix the crosstoolchain and  bootstrap sequence wrt.
+ stack-protector flag usage.
+
+---
+ gcc/gcc.cc | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index cc99d0b7aa1..c60a75371f8 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -1004,8 +1004,7 @@ proper position among the other output files.  */
+ 
+ #ifndef LINK_SSP_SPEC
+ #ifdef TARGET_LIBC_PROVIDES_SSP
+-#define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+-		       "|fstack-protector-strong|fstack-protector-explicit:}"
+#define LINK_SSP_SPEC "-lssp_nonshared"
+ #else
+ #define LINK_SSP_SPEC "%{fstack-protector|fstack-protector-all" \
+ 		       "|fstack-protector-strong|fstack-protector-explicit" \
--- a/cross/gcc-riscv64/0020-DP-Use-push-state-pop-state-for-gold-as-well-when-li.patch
+++ b/cross/gcc-riscv64/0020-DP-Use-push-state-pop-state-for-gold-as-well-when-li.patch
@ -0,0 +1,66 @@
+From bbd5c529ef878c2d6096fd4949616714eb82683a Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:03:42 +0000
+Subject: [PATCH] DP: Use --push-state/--pop-state for gold as well when
+ linking libtsan.
+
+---
+ gcc/gcc.cc | 16 ++++++++--------
+ 1 file changed, 8 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index c60a75371f8..735b2b1bba1 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -745,10 +745,10 @@ proper position among the other output files.  */
+ #define LIBASAN_SPEC STATIC_LIBASAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBASAN_SPEC "%{static-libasan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libasan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libasan:--push-state --no-as-needed}" \
+ 		     " -lasan " \
+ 		     " %{static-libasan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libasan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libasan:--pop-state}" \
+ 		     STATIC_LIBASAN_LIBS
+ #else
+ #define LIBASAN_SPEC "-lasan" STATIC_LIBASAN_LIBS
+@@ -784,10 +784,10 @@ proper position among the other output files.  */
+ #define LIBTSAN_SPEC STATIC_LIBTSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBTSAN_SPEC "%{static-libtsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libtsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libtsan:--push-state --no-as-needed}" \
+ 		     " -ltsan " \
+ 		     " %{static-libtsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libtsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libtsan:--pop-state}" \
+ 		     STATIC_LIBTSAN_LIBS
+ #else
+ #define LIBTSAN_SPEC "-ltsan" STATIC_LIBTSAN_LIBS
+@@ -805,10 +805,10 @@ proper position among the other output files.  */
+ #define LIBLSAN_SPEC STATIC_LIBLSAN_LIBS
+ #elif defined(HAVE_LD_STATIC_DYNAMIC)
+ #define LIBLSAN_SPEC "%{static-liblsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-liblsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-liblsan:--push-state --no-as-needed}" \
+ 		     " -llsan " \
+ 		     " %{static-liblsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-liblsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-liblsan:--pop-state}" \
+ 		     STATIC_LIBLSAN_LIBS
+ #else
+ #define LIBLSAN_SPEC "-llsan" STATIC_LIBLSAN_LIBS
+@@ -824,10 +824,10 @@ proper position among the other output files.  */
+   " %{static-libubsan|static:%:include(libsanitizer.spec)%(link_libubsan)}"
+ #ifdef HAVE_LD_STATIC_DYNAMIC
+ #define LIBUBSAN_SPEC "%{static-libubsan:" LD_STATIC_OPTION "}" \
+-		     " %{!static-libubsan:%{!fuse-ld=gold:--push-state }--no-as-needed}" \
+		     " %{!static-libubsan:--push-state --no-as-needed}" \
+ 		     " -lubsan " \
+ 		     " %{static-libubsan:" LD_DYNAMIC_OPTION "}" \
+-		     " %{!static-libubsan:%{fuse-ld=gold:--as-needed;:--pop-state}}" \
+		     " %{!static-libubsan:--pop-state}" \
+ 		     STATIC_LIBUBSAN_LIBS
+ #else
+ #define LIBUBSAN_SPEC "-lubsan" STATIC_LIBUBSAN_LIBS
--- a/cross/gcc-riscv64/0021-mips64-disable-multilib-support.patch
+++ b/cross/gcc-riscv64/0021-mips64-disable-multilib-support.patch
@ -0,0 +1,45 @@
+From 714ed6d9649bf9ed42e34fef9c41169921e63921 Mon Sep 17 00:00:00 2001
+From: Nils Andreas Svee <me@lochnair.net>
+Date: Thu, 21 Dec 2017 03:14:33 +0100
+Subject: [PATCH] mips64: disable multilib support
+
+multilib is not supported by Alpine GCC
+---
+ gcc/config/mips/mips.h    | 8 ++++----
+ gcc/config/mips/t-linux64 | 6 +++---
+ 2 files changed, 7 insertions(+), 7 deletions(-)
+
+diff --git a/gcc/config/mips/mips.h b/gcc/config/mips/mips.h
+index 858bbba3a36..2d4f553e652 100644
+--- a/gcc/config/mips/mips.h
+++ b/gcc/config/mips/mips.h
+@@ -3447,11 +3447,11 @@ struct GTY(())  machine_function {
+ /* If we are *not* using multilibs and the default ABI is not ABI_32 we
+    need to change these from /lib and /usr/lib.  */
+ #if MIPS_ABI_DEFAULT == ABI_N32
+-#define STANDARD_STARTFILE_PREFIX_1 "/lib32/"
+-#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib32/"
+#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
+#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+ #elif MIPS_ABI_DEFAULT == ABI_64
+-#define STANDARD_STARTFILE_PREFIX_1 "/lib64/"
+-#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib64/"
+#define STANDARD_STARTFILE_PREFIX_1 "/lib/"
+#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/"
+ #endif
+ 
+ /* Load store bonding is not supported by micromips and fix_24k.  The
+diff --git a/gcc/config/mips/t-linux64 b/gcc/config/mips/t-linux64
+index 2fdd8e00407..406a3676289 100644
+--- a/gcc/config/mips/t-linux64
+++ b/gcc/config/mips/t-linux64
+@@ -21,6 +21,6 @@ MULTILIB_DIRNAMES = n32 32 64
+ MIPS_EL = $(if $(filter %el, $(firstword $(subst -, ,$(target)))),el)
+ MIPS_SOFT = $(if $(strip $(filter MASK_SOFT_FLOAT_ABI, $(target_cpu_default)) $(filter soft, $(with_float))),soft)
+ MULTILIB_OSDIRNAMES = \
+-	../lib32$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabin32$(MIPS_SOFT)) \
+-	../lib$(call if_multiarch,:mips$(MIPS_EL)-linux-gnu$(MIPS_SOFT)) \
+-	../lib64$(call if_multiarch,:mips64$(MIPS_EL)-linux-gnuabi64$(MIPS_SOFT))
+        ../lib \
+        ../lib32 \
+        ../lib
--- a/cross/gcc-riscv64/0022-aarch64-disable-multilib-support.patch
+++ b/cross/gcc-riscv64/0022-aarch64-disable-multilib-support.patch
@ -0,0 +1,23 @@
+From 8fc8d6c26a2a45945182e211bc3ac2eae4d6a11b Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:12:55 +0000
+Subject: [PATCH] aarch64: disable multilib support
+
+multilib is unsupported on Alpine GCC
+---
+ gcc/config/aarch64/t-aarch64-linux | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/config/aarch64/t-aarch64-linux b/gcc/config/aarch64/t-aarch64-linux
+index d0cd546002a..b63a77f4969 100644
+--- a/gcc/config/aarch64/t-aarch64-linux
+++ b/gcc/config/aarch64/t-aarch64-linux
+@@ -22,7 +22,7 @@ LIB1ASMSRC   = aarch64/lib1funcs.asm
+ LIB1ASMFUNCS = _aarch64_sync_cache_range
+ 
+ AARCH_BE = $(if $(findstring TARGET_BIG_ENDIAN_DEFAULT=1, $(tm_defines)),_be)
+-MULTILIB_OSDIRNAMES = mabi.lp64=../lib64$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu)
+MULTILIB_OSDIRNAMES = mabi.lp64=../lib
+ MULTIARCH_DIRNAME = $(call if_multiarch,aarch64$(AARCH_BE)-linux-gnu)
+ 
+ MULTILIB_OSDIRNAMES += mabi.ilp32=../libilp32$(call if_multiarch,:aarch64$(AARCH_BE)-linux-gnu_ilp32)
--- a/cross/gcc-riscv64/0023-s390x-disable-multilib-support.patch
+++ b/cross/gcc-riscv64/0023-s390x-disable-multilib-support.patch
@ -0,0 +1,22 @@
+From 65ad898df141261a1ccd891a99133ad8f9847133 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:13:59 +0000
+Subject: [PATCH] s390x: disable multilib support
+
+multilib is not supported on Alpine GCC at present
+---
+ gcc/config/s390/t-linux64 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/s390/t-linux64 b/gcc/config/s390/t-linux64
+index cc6ab367072..7f498ee1cdc 100644
+--- a/gcc/config/s390/t-linux64
+++ b/gcc/config/s390/t-linux64
+@@ -7,5 +7,5 @@
+ 
+ MULTILIB_OPTIONS = m64/m31
+ MULTILIB_DIRNAMES = 64 32
+-MULTILIB_OSDIRNAMES = ../lib64$(call if_multiarch,:s390x-linux-gnu)
+-MULTILIB_OSDIRNAMES += $(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:s390-linux-gnu)
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
--- a/cross/gcc-riscv64/0024-ppc64-le-disable-multilib-support.patch
+++ b/cross/gcc-riscv64/0024-ppc64-le-disable-multilib-support.patch
@ -0,0 +1,78 @@
+From 3263d8634da6d7e1edb1bfd88e1b2627ce0aa1be Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:14:33 +0000
+Subject: [PATCH] ppc64[le]: disable multilib support
+
+multilib is not presently supported on Alpine GCC
+---
+ gcc/config/rs6000/t-linux       | 6 ++++--
+ gcc/config/rs6000/t-linux64     | 4 ++--
+ gcc/config/rs6000/t-linux64bele | 4 ++--
+ gcc/config/rs6000/t-linux64lebe | 4 ++--
+ 4 files changed, 10 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/config/rs6000/t-linux b/gcc/config/rs6000/t-linux
+index 4e371255533..128c75c7d39 100644
+--- a/gcc/config/rs6000/t-linux
+++ b/gcc/config/rs6000/t-linux
+@@ -2,7 +2,8 @@
+ # or soft-float.
+ ifeq (,$(filter $(with_cpu),$(SOFT_FLOAT_CPUS))$(findstring soft,$(with_float)))
+ ifneq (,$(findstring powerpc64,$(target)))
+-MULTILIB_OSDIRNAMES := .=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ else
+ MULTIARCH_DIRNAME := $(call if_multiarch,powerpc-linux-gnu)
+ endif
+@@ -10,7 +11,8 @@ ifneq (,$(findstring powerpcle,$(target)))
+ MULTIARCH_DIRNAME := $(subst -linux,le-linux,$(MULTIARCH_DIRNAME))
+ endif
+ ifneq (,$(findstring powerpc64le,$(target)))
+-MULTILIB_OSDIRNAMES := $(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ endif
+ endif
+ 
+diff --git a/gcc/config/rs6000/t-linux64 b/gcc/config/rs6000/t-linux64
+index 47e0efd5764..f89729af64f 100644
+--- a/gcc/config/rs6000/t-linux64
+++ b/gcc/config/rs6000/t-linux64
+@@ -28,8 +28,8 @@
+ MULTILIB_OPTIONS    := m64/m32
+ MULTILIB_DIRNAMES   := 64 32
+ MULTILIB_EXTRA_OPTS := 
+-MULTILIB_OSDIRNAMES := m64=../lib64$(call if_multiarch,:powerpc64-linux-gnu)
+-MULTILIB_OSDIRNAMES += m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:powerpc-linux-gnu)
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ 
+ rs6000-linux.o: $(srcdir)/config/rs6000/rs6000-linux.cc
+ 	$(COMPILE) $<
+diff --git a/gcc/config/rs6000/t-linux64bele b/gcc/config/rs6000/t-linux64bele
+index 97c1ee6fb4d..08d72639cb6 100644
+--- a/gcc/config/rs6000/t-linux64bele
+++ b/gcc/config/rs6000/t-linux64bele
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mlittle
+ MULTILIB_DIRNAMES   += le
+-MULTILIB_OSDIRNAMES += $(subst =,.mlittle=,$(subst lible32,lib32le,$(subst lible64,lib64le,$(subst lib,lible,$(subst -linux,le-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mlittle%,$(MULTILIB_OSDIRNAMES)))
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
+diff --git a/gcc/config/rs6000/t-linux64lebe b/gcc/config/rs6000/t-linux64lebe
+index 2e63bdb9fc9..c6e1c5db65d 100644
+--- a/gcc/config/rs6000/t-linux64lebe
+++ b/gcc/config/rs6000/t-linux64lebe
+@@ -2,6 +2,6 @@
+ 
+ MULTILIB_OPTIONS    += mbig
+ MULTILIB_DIRNAMES   += be
+-MULTILIB_OSDIRNAMES += $(subst =,.mbig=,$(subst libbe32,lib32be,$(subst libbe64,lib64be,$(subst lib,libbe,$(subst le-linux,-linux,$(MULTILIB_OSDIRNAMES))))))
+-MULTILIB_OSDIRNAMES += $(subst $(if $(findstring 64,$(target)),m64,m32).,,$(filter $(if $(findstring 64,$(target)),m64,m32).mbig%,$(MULTILIB_OSDIRNAMES)))
+MULTILIB_OSDIRNAMES := m64=../lib
+MULTILIB_OSDIRNAMES += m32=../lib32
+ MULTILIB_MATCHES    := ${MULTILIB_MATCHES_ENDIAN}
--- a/cross/gcc-riscv64/0025-x86_64-disable-multilib-support.patch
+++ b/cross/gcc-riscv64/0025-x86_64-disable-multilib-support.patch
@ -0,0 +1,23 @@
+From bf63353ea679e0bbf2c2f17bb64c75ebd590c6e7 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Thu, 6 Jan 2022 03:14:54 +0000
+Subject: [PATCH] x86_64: disable multilib support
+
+multilib is not presently supported on Alpine GCC
+---
+ gcc/config/i386/t-linux64 | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/gcc/config/i386/t-linux64 b/gcc/config/i386/t-linux64
+index 5526ad0e6cc..78866afab36 100644
+--- a/gcc/config/i386/t-linux64
+++ b/gcc/config/i386/t-linux64
+@@ -33,6 +33,6 @@
+ comma=,
+ MULTILIB_OPTIONS    = $(subst $(comma),/,$(TM_MULTILIB_CONFIG))
+ MULTILIB_DIRNAMES   = $(patsubst m%, %, $(subst /, ,$(MULTILIB_OPTIONS)))
+-MULTILIB_OSDIRNAMES = m64=../lib64$(call if_multiarch,:x86_64-linux-gnu)
+-MULTILIB_OSDIRNAMES+= m32=$(if $(wildcard $(shell echo $(SYSTEM_HEADER_DIR))/../../usr/lib32),../lib32,../lib)$(call if_multiarch,:i386-linux-gnu)
+MULTILIB_OSDIRNAMES = m64=../lib
+MULTILIB_OSDIRNAMES+= m32=../lib32
+ MULTILIB_OSDIRNAMES+= mx32=../libx32$(call if_multiarch,:x86_64-linux-gnux32)
--- a/cross/gcc-riscv64/0026-riscv-disable-multilib-support.patch
+++ b/cross/gcc-riscv64/0026-riscv-disable-multilib-support.patch
@ -0,0 +1,71 @@
+From 2eed19787020ce52cf07b76a5d167c420ec42b61 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Mon, 3 Jan 2022 07:14:48 +0100
+Subject: [PATCH] riscv: disable multilib support
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+From the musl wiki [1]:
+
+	musl does not support sharing an include directory between archs
+	[…], and thus is not compatible with GCC-style multilib. It is
+	recommended that distributions build GCC with multilib disabled,
+	and use library directories named lib, not lib64 or lib32.
+
+For this reason, we patch existing GCC configuration files (gcc/config)
+to pin MULTILIB_OSDIRNAMES to lib, there is also a corresponding GCC
+upstream bug about this issue [2]. Avoiding the use of lib64 and lib32
+directories is a bit more difficult on the RISC-V architecture. This is
+due to the fact that the default RISC-V configuration does not only use
+the lib64 and lib32 directories but also subdirectories within these
+directories for different RISC-V ABIs (e.g. lp64d, lp64, …) [3].
+
+This patch aligns the RISC-V configuration with other architectures by
+pinning MULTILIB_OSDIRNAMES to lib for rv64gc (our default RISC-V
+-march). Furthermore, this patch removes the ABI-specific startfile
+prefix spec. Since both of these impact the default LIBRARY_PATH [4]
+this patch thereby aligns the default RISC-V LIBRARY_PATH with that from
+other Alpine architectures and thereby fixes #13369 [5].
+
+Incidentally, this also fixes gccgo on riscv64, as without this patch
+gccgo is otherwise not able to find the *.gox files for the Go standard
+library.
+
+[1]: https://wiki.musl-libc.org/guidelines-for-distributions.html#Multilib/multi_arch
+[2]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90077
+[3]: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103889#c14
+[4]: https://gcc.gnu.org/git/?p=gcc.git;a=blob;f=gcc/gcc.c;h=d4c8746b0aa322286decf92aa72a12f0a393b655;hb=HEAD#l9122
+[5]: https://gitlab.alpinelinux.org/alpine/aports/-/issues/13369
+---
+ gcc/config/riscv/linux.h | 6 ------
+ gcc/config/riscv/t-linux | 7 +++++--
+ 2 files changed, 5 insertions(+), 8 deletions(-)
+
+diff --git a/gcc/config/riscv/linux.h b/gcc/config/riscv/linux.h
+index 3067ed6eac8..4c8c85e3285 100644
+--- a/gcc/config/riscv/linux.h
+++ b/gcc/config/riscv/linux.h
+@@ -71,9 +71,3 @@ along with GCC; see the file COPYING3.  If not see
+     %{static:-static}}"
+ 
+ #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
+-
+-#define STARTFILE_PREFIX_SPEC 			\
+-   "/lib" XLEN_SPEC "/" ABI_SPEC "/ "		\
+-   "/usr/lib" XLEN_SPEC "/" ABI_SPEC "/ "	\
+-   "/lib/ "					\
+-   "/usr/lib/ "
+diff --git a/gcc/config/riscv/t-linux b/gcc/config/riscv/t-linux
+index 216d2776a18..1a8a863853e 100644
+--- a/gcc/config/riscv/t-linux
+++ b/gcc/config/riscv/t-linux
+@@ -1,3 +1,6 @@
+-# Only XLEN and ABI affect Linux multilib dir names, e.g. /lib32/ilp32d/
+-MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib64,$(MULTILIB_DIRNAMES)))
+MULTILIB_OPTIONS := march=rv64gc
+MULTILIB_DIRNAMES := rv64gc
+
+MULTILIB_DIRNAMES := $(patsubst rv32%,lib32,$(patsubst rv64%,lib,$(MULTILIB_DIRNAMES)))
+ MULTILIB_OSDIRNAMES := $(patsubst lib%,../lib%,$(MULTILIB_DIRNAMES))
+MULTILIB_MATCHES := march?rv64gc=march?rv64imafdc
--- a/cross/gcc-riscv64/0027-always-build-libgcc_eh.a.patch
+++ b/cross/gcc-riscv64/0027-always-build-libgcc_eh.a.patch
@ -0,0 +1,48 @@
+From 51a35c0fa0e793c6a2c64ae1449c0cfd681d8f8a Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:05:41 +0000
+Subject: [PATCH] always build libgcc_eh.a
+
+highly inspired by:
+  http://landley.net/hg/aboriginal/file/7e0747a665ab/sources/patches/gcc-core-libgcceh.patch
+---
+ libgcc/Makefile.in | 11 ++++++-----
+ 1 file changed, 6 insertions(+), 5 deletions(-)
+
+diff --git a/libgcc/Makefile.in b/libgcc/Makefile.in
+index 09b3ec8bc2e..c9ca58c64cc 100644
+--- a/libgcc/Makefile.in
+++ b/libgcc/Makefile.in
+@@ -957,8 +957,9 @@ ifneq ($(LIBUNWIND),)
+ all: libunwind.a
+ endif
+ 
+all: libgcc_eh.a
+ ifeq ($(enable_shared),yes)
+-all: libgcc_eh.a libgcc_s$(SHLIB_EXT)
+all: libgcc_s$(SHLIB_EXT)
+ ifneq ($(LIBUNWIND),)
+ all: libunwind$(SHLIB_EXT)
+ libgcc_s$(SHLIB_EXT): libunwind$(SHLIB_EXT)
+@@ -1160,10 +1161,6 @@ install-libunwind:
+ install-shared:
+ 	$(mkinstalldirs) $(DESTDIR)$(inst_libdir)
+ 
+-	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
+-	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+-
+ 	$(subst @multilib_dir@,$(MULTIDIR),$(subst \
+ 		@shlib_base_name@,libgcc_s,$(subst \
+ 		@shlib_slibdir_qual@,$(MULTIOSSUBDIR),$(SHLIB_INSTALL))))
+@@ -1180,6 +1177,10 @@ ifeq ($(enable_gcov),yes)
+ 	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcov.a
+ endif
+ 
+	$(INSTALL_DATA) libgcc_eh.a $(DESTDIR)$(inst_libdir)/
+	chmod 644 $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+	$(RANLIB) $(DESTDIR)$(inst_libdir)/libgcc_eh.a
+
+ 	parts="$(INSTALL_PARTS)";				\
+ 	for file in $$parts; do					\
+ 	  rm -f $(DESTDIR)$(inst_libdir)/$$file;		\
--- a/cross/gcc-riscv64/0028-ada-libgnarl-compatibility-for-musl.patch
+++ b/cross/gcc-riscv64/0028-ada-libgnarl-compatibility-for-musl.patch
@ -0,0 +1,132 @@
+From 64a1c5f57e278869f41c43ee56cc5defb3dd55c5 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:06:30 +0000
+Subject: [PATCH] ada: libgnarl compatibility for musl
+
+---
+ gcc/ada/libgnarl/s-osinte__linux.ads | 11 ------
+ gcc/ada/libgnarl/s-taprop__linux.adb | 53 ++--------------------------
+ 2 files changed, 3 insertions(+), 61 deletions(-)
+
+diff --git a/gcc/ada/libgnarl/s-osinte__linux.ads b/gcc/ada/libgnarl/s-osinte__linux.ads
+index 7c9e7ca4518..caafc4aa68f 100644
+--- a/gcc/ada/libgnarl/s-osinte__linux.ads
+++ b/gcc/ada/libgnarl/s-osinte__linux.ads
+@@ -403,12 +403,6 @@ package System.OS_Interface is
+    PTHREAD_RWLOCK_PREFER_WRITER_NP              : constant := 1;
+    PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP : constant := 2;
+ 
+-   function pthread_rwlockattr_setkind_np
+-     (attr : access pthread_rwlockattr_t;
+-      pref : int) return int;
+-   pragma Import
+-     (C, pthread_rwlockattr_setkind_np, "pthread_rwlockattr_setkind_np");
+-
+    function pthread_rwlock_init
+      (mutex : access pthread_rwlock_t;
+       attr  : access pthread_rwlockattr_t) return int;
+@@ -470,11 +464,6 @@ package System.OS_Interface is
+       protocol : int) return int;
+    pragma Import (C, pthread_mutexattr_setprotocol);
+ 
+-   function pthread_mutexattr_setprioceiling
+-     (attr        : access pthread_mutexattr_t;
+-      prioceiling : int) return int;
+-   pragma Import (C, pthread_mutexattr_setprioceiling);
+-
+    type struct_sched_param is record
+       sched_priority : int;  --  scheduling priority
+    end record;
+diff --git a/gcc/ada/libgnarl/s-taprop__linux.adb b/gcc/ada/libgnarl/s-taprop__linux.adb
+index 4ff784f0ea7..b34a12802c6 100644
+--- a/gcc/ada/libgnarl/s-taprop__linux.adb
+++ b/gcc/ada/libgnarl/s-taprop__linux.adb
+@@ -198,9 +198,6 @@ package body System.Task_Primitives.Operations is
+    pragma Import
+      (C, GNAT_pthread_condattr_setup, "__gnat_pthread_condattr_setup");
+ 
+-   function GNAT_has_cap_sys_nice return C.int;
+-   pragma Import
+-     (C, GNAT_has_cap_sys_nice, "__gnat_has_cap_sys_nice");
+    --  We do not have pragma Linker_Options ("-lcap"); here, because this
+    --  library is not present on many Linux systems. 'libcap' is the Linux
+    --  "capabilities" library, called by __gnat_has_cap_sys_nice.
+@@ -210,38 +207,6 @@ package body System.Task_Primitives.Operations is
+    --  Convert Ada priority to Linux priority. Priorities are 1 .. 99 on
+    --  GNU/Linux, so we map 0 .. 98 to 1 .. 99.
+ 
+-   function Get_Ceiling_Support return Boolean;
+-   --  Get the value of the Ceiling_Support constant (see below).
+-   --  Note well: If this function or related code is modified, it should be
+-   --  tested by hand, because automated testing doesn't exercise it.
+-
+-   -------------------------
+-   -- Get_Ceiling_Support --
+-   -------------------------
+-
+-   function Get_Ceiling_Support return Boolean is
+-      Ceiling_Support : Boolean := False;
+-   begin
+-      if Locking_Policy /= 'C' then
+-         return False;
+-      end if;
+-
+-      declare
+-         function geteuid return Integer;
+-         pragma Import (C, geteuid, "geteuid");
+-         Superuser : constant Boolean := geteuid = 0;
+-         Has_Cap : constant C.int := GNAT_has_cap_sys_nice;
+-         pragma Assert (Has_Cap in 0 | 1);
+-      begin
+-         Ceiling_Support := Superuser or else Has_Cap = 1;
+-      end;
+-
+-      return Ceiling_Support;
+-   end Get_Ceiling_Support;
+-
+-   pragma Warnings (Off, "non-preelaborable call not allowed*");
+-   Ceiling_Support : constant Boolean := Get_Ceiling_Support;
+-   pragma Warnings (On, "non-preelaborable call not allowed*");
+    --  True if the locking policy is Ceiling_Locking, and the current process
+    --  has permission to use this policy. The process has permission if it is
+    --  running as 'root', or if the capability was set by the setcap command,
+@@ -344,7 +309,9 @@ package body System.Task_Primitives.Operations is
+    -- Init_Mutex --
+    ----------------
+ 
+   pragma Warnings (Off, "formal parameter * is not referenced");
+    function Init_Mutex (L : RTS_Lock_Ptr; Prio : Any_Priority) return C.int is
+   pragma Warnings (On, "formal parameter * is not referenced");
+       Mutex_Attr : aliased pthread_mutexattr_t;
+       Result, Result_2 : C.int;
+ 
+@@ -356,16 +323,7 @@ package body System.Task_Primitives.Operations is
+          return Result;
+       end if;
+ 
+-      if Ceiling_Support then
+-         Result := pthread_mutexattr_setprotocol
+-           (Mutex_Attr'Access, PTHREAD_PRIO_PROTECT);
+-         pragma Assert (Result = 0);
+-
+-         Result := pthread_mutexattr_setprioceiling
+-           (Mutex_Attr'Access, Prio_To_Linux_Prio (Prio));
+-         pragma Assert (Result = 0);
+-
+-      elsif Locking_Policy = 'I' then
+      if Locking_Policy = 'I' then
+          Result := pthread_mutexattr_setprotocol
+            (Mutex_Attr'Access, PTHREAD_PRIO_INHERIT);
+          pragma Assert (Result = 0);
+@@ -405,11 +363,6 @@ package body System.Task_Primitives.Operations is
+             Result := pthread_rwlockattr_init (RWlock_Attr'Access);
+             pragma Assert (Result = 0);
+ 
+-            Result := pthread_rwlockattr_setkind_np
+-              (RWlock_Attr'Access,
+-               PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP);
+-            pragma Assert (Result = 0);
+-
+             Result := pthread_rwlock_init (L.RW'Access, RWlock_Attr'Access);
+ 
+             pragma Assert (Result in 0 | ENOMEM);
--- a/cross/gcc-riscv64/0029-ada-musl-support-fixes.patch
+++ b/cross/gcc-riscv64/0029-ada-musl-support-fixes.patch
@ -0,0 +1,220 @@
+From 82addb1312f4f58a412a664228944009aa5cb569 Mon Sep 17 00:00:00 2001
+From: Ariadne Conill <ariadne@dereferenced.org>
+Date: Fri, 21 Aug 2020 07:07:48 +0000
+Subject: [PATCH] ada: musl support fixes
+
+---
+ gcc/ada/Makefile.rtl | 10 +++++-----
+ gcc/ada/adaint.c     | 34 +++++++++++++++++++---------------
+ gcc/ada/adaint.h     | 10 ++++------
+ gcc/ada/terminals.c  |  8 ++++----
+ 4 files changed, 32 insertions(+), 30 deletions(-)
+
+diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
+index aaf853e3a2a..e2dd3587ed5 100644
+--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
+@@ -1633,7 +1633,7 @@ ifeq ($(strip $(filter-out %86 linux%,$(target_cpu) $(target_os))),)
+   s-intman.adb<libgnarl/s-intman__posix.adb \
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   a-exetim.adb<libgnarl/a-exetim__posix.adb \
+   a-exetim.ads<libgnarl/a-exetim__default.ads \
+   s-linux.ads<libgnarl/s-linux.ads \
+@@ -2258,7 +2258,7 @@ ifeq ($(strip $(filter-out powerpc% linux%,$(target_cpu) $(target_os))),)
+   s-tasinf.adb<libgnarl/s-tasinf__linux.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   system.ads<libgnat/system-linux-ppc.ads
+@@ -2289,7 +2289,7 @@ ifeq ($(strip $(filter-out powerpc% linux%,$(target_cpu) $(target_os))),)
+ endif
+ 
+ # ARM linux, GNU eabi
+-ifeq ($(strip $(filter-out arm% linux-gnueabi%,$(target_cpu) $(target_os))),)
+ifeq ($(strip $(filter-out arm% linux-gnueabi% linux-musleabi% linux-muslgnueabi%,$(target_cpu) $(target_os))),)
+   LIBGNAT_TARGET_PAIRS = \
+   a-intnam.ads<libgnarl/a-intnam__linux.ads \
+   s-inmaop.adb<libgnarl/s-inmaop__posix.adb \
+@@ -2504,7 +2504,7 @@ ifeq ($(strip $(filter-out %ia64 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix-noaltstack.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(ATOMICS_BUILTINS_TARGET_PAIRS) \
+   $(GNATRTL_128BIT_PAIRS) \
+@@ -2608,7 +2608,7 @@ ifeq ($(strip $(filter-out %x86_64 linux%,$(target_cpu) $(target_os))),)
+   s-tpopsp.adb<libgnarl/s-tpopsp__tls.adb \
+   s-taspri.ads<libgnarl/s-taspri__posix.ads \
+   $(TRASYM_DWARF_UNIX_PAIRS) \
+-  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
+  s-tsmona.adb<libgnat/s-tsmona.adb \
+   $(ATOMICS_TARGET_PAIRS) \
+   $(X86_64_TARGET_PAIRS) \
+   $(GNATRTL_128BIT_PAIRS) \
+diff --git a/gcc/ada/adaint.c b/gcc/ada/adaint.c
+index 591d033fbca..a485cbf15b9 100644
+--- a/gcc/ada/adaint.c
+++ b/gcc/ada/adaint.c
+@@ -91,6 +91,11 @@
+ #include <sys/param.h>
+ #include <sys/pstat.h>
+ #endif
+ 
+#if defined (linux) || defined(__linux__)
+#define _GNU_SOURCE 1
+#include <sched.h>
+#endif
+ 
+ #ifdef __PikeOS__
+ #define __BSD_VISIBLE 1
+@@ -3446,7 +3451,6 @@ __gnat_lwp_self (void)
+ #endif
+ 
+ #if defined (__linux__)
+-#include <sched.h>
+ 
+ /* glibc versions earlier than 2.7 do not define the routines to handle
+    dynamically allocated CPU sets. For these targets, we use the static
+@@ -3456,7 +3460,7 @@ __gnat_lwp_self (void)
+ 
+ /* Dynamic cpu sets */
+ 
+-cpu_set_t *
+void *
+ __gnat_cpu_alloc (size_t count)
+ {
+   return CPU_ALLOC (count);
+@@ -3469,33 +3473,33 @@ __gnat_cpu_alloc_size (size_t count)
+ }
+ 
+ void
+-__gnat_cpu_free (cpu_set_t *set)
+__gnat_cpu_free (void *set)
+ {
+-  CPU_FREE (set);
+  CPU_FREE ((cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_zero (size_t count, cpu_set_t *set)
+__gnat_cpu_zero (size_t count, void *set)
+ {
+-  CPU_ZERO_S (count, set);
+  CPU_ZERO_S (count, (cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_set (int cpu, size_t count, cpu_set_t *set)
+__gnat_cpu_set (int cpu, size_t count, void *set)
+ {
+   /* Ada handles CPU numbers starting from 1, while C identifies the first
+      CPU by a 0, so we need to adjust. */
+-  CPU_SET_S (cpu - 1, count, set);
+  CPU_SET_S (cpu - 1, count, (cpu_set_t *) set);
+ }
+ 
+ #else /* !CPU_ALLOC */
+ 
+ /* Static cpu sets */
+ 
+-cpu_set_t *
+void *
+ __gnat_cpu_alloc (size_t count ATTRIBUTE_UNUSED)
+ {
+-  return (cpu_set_t *) xmalloc (sizeof (cpu_set_t));
+  return xmalloc (sizeof (cpu_set_t));
+ }
+ 
+ size_t
+@@ -3505,23 +3509,23 @@ __gnat_cpu_alloc_size (size_t count ATTRIBUTE_UNUSED)
+ }
+ 
+ void
+-__gnat_cpu_free (cpu_set_t *set)
+__gnat_cpu_free (void *set)
+ {
+   free (set);
+ }
+ 
+ void
+-__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, cpu_set_t *set)
+__gnat_cpu_zero (size_t count ATTRIBUTE_UNUSED, void *set)
+ {
+-  CPU_ZERO (set);
+  CPU_ZERO ((cpu_set_t *) set);
+ }
+ 
+ void
+-__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, cpu_set_t *set)
+__gnat_cpu_set (int cpu, size_t count ATTRIBUTE_UNUSED, void *set)
+ {
+   /* Ada handles CPU numbers starting from 1, while C identifies the first
+      CPU by a 0, so we need to adjust. */
+-  CPU_SET (cpu - 1, set);
+  CPU_SET (cpu - 1, (cpu_set_t *) set);
+ }
+ #endif /* !CPU_ALLOC */
+ #endif /* __linux__ */
+diff --git a/gcc/ada/adaint.h b/gcc/ada/adaint.h
+index 2631be5ad3e..d442f4bd6cd 100644
+--- a/gcc/ada/adaint.h
+++ b/gcc/ada/adaint.h
+@@ -321,13 +321,11 @@ extern void   *__gnat_lwp_self			   (void);
+ 
+ /* Routines for interface to required CPU set primitives */
+ 
+-#include <sched.h>
+-
+-extern cpu_set_t *__gnat_cpu_alloc                 (size_t);
+extern void * __gnat_cpu_alloc                 (size_t);
+ extern size_t __gnat_cpu_alloc_size                (size_t);
+-extern void   __gnat_cpu_free                  (cpu_set_t *);
+-extern void   __gnat_cpu_zero                      (size_t, cpu_set_t *);
+-extern void   __gnat_cpu_set                       (int, size_t, cpu_set_t *);
+extern void   __gnat_cpu_free                  (void *);
+extern void   __gnat_cpu_zero                      (size_t, void *);
+extern void   __gnat_cpu_set                       (int, size_t, void *);
+ #endif
+ 
+ #if defined (_WIN32)
+diff --git a/gcc/ada/terminals.c b/gcc/ada/terminals.c
+index 32d30a49c7e..d960e32e2d0 100644
+--- a/gcc/ada/terminals.c
+++ b/gcc/ada/terminals.c
+@@ -1132,7 +1132,7 @@ __gnat_setup_winsize (void *desc ATTRIBUTE_UNUSED,
+ /* POSIX does not specify how to open the master side of a terminal.Several
+    methods are available (system specific):
+       1- using a cloning device (USE_CLONE_DEVICE)
+-      2- getpt                  (USE_GETPT)
+      2- posix_openpt           (USE_POSIX_OPENPT)
+       3- openpty                (USE_OPENPTY)
+ 
+    When using the cloning device method, the macro USE_CLONE_DEVICE should
+@@ -1146,7 +1146,7 @@ __gnat_setup_winsize (void *desc ATTRIBUTE_UNUSED,
+ #if defined (__APPLE__) || defined (BSD)
+ #define USE_OPENPTY
+ #elif defined (__linux__)
+-#define USE_GETPT
+#define USE_POSIX_OPENPT
+ #elif defined (__sun__)
+ #define USE_CLONE_DEVICE "/dev/ptmx"
+ #elif defined (_AIX)
+@@ -1195,8 +1195,8 @@ allocate_pty_desc (pty_desc **desc) {
+    int  master_fd   = -1;
+    char *slave_name = NULL;
+ 
+-#ifdef USE_GETPT
+-  master_fd = getpt ();
+#if defined(USE_POSIX_OPENPT)
+  master_fd = posix_openpt(O_RDWR | O_NOCTTY);
+ #elif defined (USE_OPENPTY)
+   status = openpty (&master_fd, &slave_fd, NULL, NULL, NULL);
+ #elif defined (USE_CLONE_DEVICE)
--- a/cross/gcc-riscv64/0033-gcc-go-link-to-libucontext.patch
+++ b/cross/gcc-riscv64/0033-gcc-go-link-to-libucontext.patch
@ -0,0 +1,42 @@
+From 0631e2b9453b33c42e12a14c11e8257d470016c5 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sun, 30 Aug 2020 19:17:42 +0200
+Subject: [PATCH] gcc-go: support libucontext
+
+This patch allows using gcc-go with libucontext. For this purpose,
+it unconditionally links gcc-go against -lucontext. Furthermore,
+it undefines SETCONTEXT_CLOBBERS_TLS in proc.c to prevent usage
+of makecontext/swapcontext feature that are not support by libucontext.
+---
+ Makefile.in          | 2 +-
+ libgo/runtime/proc.c | 4 ++++
+ 2 files changed, 5 insertions(+), 1 deletion(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index 593495e1650..c3e5d489bc0 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -52801,7 +52801,7 @@ configure-target-libgo:
+ 	esac; \
+ 	module_srcdir=libgo; \
+ 	rm -f no-such-file || : ; \
+-	CONFIG_SITE=no-such-file $(SHELL) \
+	CONFIG_SITE=no-such-file LIBS="-lucontext $$LIBS" $(SHELL) \
+ 	  $$s/$$module_srcdir/configure \
+ 	  --srcdir=$${topdir}/$$module_srcdir \
+ 	  $(TARGET_CONFIGARGS) --build=${build_alias} --host=${target_alias} \
+diff --git a/libgo/runtime/proc.c b/libgo/runtime/proc.c
+index 3a30748d329..a987678fa84 100644
+--- a/libgo/runtime/proc.c
+++ b/libgo/runtime/proc.c
+@@ -66,6 +66,10 @@ static void gscanstack(G*);
+ 
+ __thread G *g __asm__(GOSYM_PREFIX "runtime.g");
+ 
+/* libucontext does not seem to support tlsbase, undef the macro
+ * here to make sure we define initcontext and fixcontext as dummies. */
+#undef SETCONTEXT_CLOBBERS_TLS
+
+ #ifndef SETCONTEXT_CLOBBERS_TLS
+ 
+ static inline void
--- a/cross/gcc-riscv64/0034-Use-generic-errstr.go-implementation-on-musl.patch
+++ b/cross/gcc-riscv64/0034-Use-generic-errstr.go-implementation-on-musl.patch
@ -0,0 +1,45 @@
+From 5093aa99f9cdded2e1ddf67b7139da6fac36b0a6 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Mon, 19 Apr 2021 07:21:41 +0200
+Subject: [PATCH] Use generic errstr.go implementation on musl
+
+glibc provides two version of strerror_r() depending on a feature test
+macro. The first is the XSI-compliant version which returns an int, the
+second is GNU-specific and returns a char pointer.
+
+Similarity, gcc's libgo provides two implementations of Errstr() both of
+which use strerror_r(). On Linux, it is assumed that the GNU-specific
+strerror_r version is used. However, musl only provides the
+XSI-compliant version of strerror_r. This patch enables the generic
+Errstr() implementation which also uses the XSI-compliant version of
+strerror_r.
+---
+ libgo/go/syscall/errstr.go       | 1 -
+ libgo/go/syscall/errstr_glibc.go | 2 +-
+ 2 files changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/libgo/go/syscall/errstr.go b/libgo/go/syscall/errstr.go
+index 6c2441d364d..8f7c5538163 100644
+--- a/libgo/go/syscall/errstr.go
+++ b/libgo/go/syscall/errstr.go
+@@ -5,7 +5,6 @@
+ // license that can be found in the LICENSE file.
+ 
+ // +build !hurd
+-// +build !linux
+ 
+ package syscall
+ 
+diff --git a/libgo/go/syscall/errstr_glibc.go b/libgo/go/syscall/errstr_glibc.go
+index 5b19e6f202d..8dc60172186 100644
+--- a/libgo/go/syscall/errstr_glibc.go
+++ b/libgo/go/syscall/errstr_glibc.go
+@@ -7,7 +7,7 @@
+ // We use this rather than errstr.go because on GNU/Linux sterror_r
+ // returns a pointer to the error message, and may not use buf at all.
+ 
+-// +build hurd linux
+// +build hurd !linux
+ 
+ package syscall
+ 
--- a/cross/gcc-riscv64/0035-configure-Add-enable-autolink-libatomic-use-in-LINK_.patch
+++ b/cross/gcc-riscv64/0035-configure-Add-enable-autolink-libatomic-use-in-LINK_.patch
@ -0,0 +1,263 @@
+From 573a66e4146c9a65d895af9081a4d3d49cfc9e7a Mon Sep 17 00:00:00 2001
+From: Drew DeVault <sir@cmpwn.com>
+Date: Wed, 9 Dec 2020 16:07:26 +0000
+Subject: [PATCH] configure: Add --enable-autolink-libatomic, use in
+ LINK_GCC_C_SEQUENCE_SPEC [PR81358]
+
+This fixes issues with RISC-V.
+---
+ Makefile.in           |  1 +
+ gcc/config.in         |  6 ++++++
+ gcc/config/gnu-user.h | 12 +++++++++++-
+ gcc/configure         | 32 ++++++++++++++++++++++++++++++--
+ gcc/configure.ac      | 22 +++++++++++++++++++++-
+ gcc/doc/install.texi  |  8 ++++++++
+ gcc/doc/tm.texi       |  8 +++++++-
+ gcc/doc/tm.texi.in    |  8 +++++++-
+ gcc/gcc.cc            | 12 +++++++++++-
+ 9 files changed, 102 insertions(+), 7 deletions(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index b564ddbf792..a95c7407d16 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -232,6 +232,7 @@ HOST_EXPORTS = \
+ 	RANLIB_FOR_TARGET="$(RANLIB_FOR_TARGET)"; export RANLIB_FOR_TARGET; \
+ 	READELF_FOR_TARGET="$(READELF_FOR_TARGET)"; export READELF_FOR_TARGET; \
+ 	TOPLEVEL_CONFIGURE_ARGUMENTS="$(TOPLEVEL_CONFIGURE_ARGUMENTS)"; export TOPLEVEL_CONFIGURE_ARGUMENTS; \
+	TARGET_CONFIGDIRS="$(TARGET_CONFIGDIRS)"; export TARGET_CONFIGDIRS; \
+ 	HOST_LIBS="$(STAGE1_LIBS)"; export HOST_LIBS; \
+ 	GMPLIBS="$(HOST_GMPLIBS)"; export GMPLIBS; \
+ 	GMPINC="$(HOST_GMPINC)"; export GMPINC; \
+diff --git a/gcc/config.in b/gcc/config.in
+index f0fbf123aa8..af84efc4f9e 100644
+--- a/gcc/config.in
+++ b/gcc/config.in
+@@ -118,6 +118,12 @@
+ #endif
+ 
+ 
+/* Define if libatomic should always be linked. */
+#ifndef USED_FOR_TARGET
+#undef ENABLE_AUTOLINK_LIBATOMIC
+#endif
+
+
+ /* Define to 1 to specify that we are using the BID decimal floating point
+    format instead of DPD */
+ #ifndef USED_FOR_TARGET
+diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
+index 8433e56c3e1..0347f10da8b 100644
+--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
+@@ -109,8 +109,18 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+ #define LINK_EH_SPEC "%{!static|static-pie:--eh-frame-hdr} "
+ #endif
+ 
+#if !defined(LINK_LIBATOMIC_SPEC) && defined(ENABLE_AUTOLINK_LIBATOMIC)
+#  ifdef LD_AS_NEEDED_OPTION
+#    define LINK_LIBATOMIC_SPEC LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
+#  else
+#    define LINK_LIBATOMIC_SPEC "-latomic"
+#  endif
+#elif !defined(LINK_LIBATOMIC_SPEC)
+#  define LINK_LIBATOMIC_SPEC ""
+#endif
+
+ #define GNU_USER_TARGET_LINK_GCC_C_SEQUENCE_SPEC \
+-  "%{static|static-pie:--start-group} %G %{!nolibc:%L} \
+  "%{static|static-pie:--start-group} %G %{!nolibc:" LINK_LIBATOMIC_SPEC " %L} \
+    %{static|static-pie:--end-group}%{!static:%{!static-pie:%G}}"
+ 
+ #undef LINK_GCC_C_SEQUENCE_SPEC
+diff --git a/gcc/configure b/gcc/configure
+index 2f6b3265a6c..6dc65bf4ccb 100755
+--- a/gcc/configure
+++ b/gcc/configure
+@@ -981,6 +981,7 @@ with_changes_root_url
+ enable_languages
+ with_multilib_list
+ with_multilib_generator
+enable_autolink_libatomic
+ with_zstd
+ with_zstd_include
+ with_zstd_lib
+@@ -1710,6 +1711,9 @@ Optional Features:
+   --disable-shared        don't provide a shared libgcc
+   --disable-gcov          don't provide libgcov and related host tools
+   --enable-languages=LIST specify which front-ends to build
+  --enable-autolink-libatomic
+                          enable automatic linking of libatomic (ignored if
+                          not built)
+   --disable-rpath         do not hardcode runtime library paths
+   --enable-sjlj-exceptions
+                           arrange to use setjmp/longjmp exception handling
+@@ -8324,7 +8328,6 @@ else
+ fi
+ 
+ 
+-
+ # Check whether --with-multilib-generator was given.
+ if test "${with_multilib_generator+set}" = set; then :
+   withval=$with_multilib_generator; :
+@@ -8332,6 +8335,32 @@ else
+   with_multilib_generator=default
+ fi
+ 
+# If libatomic is available, whether it should be linked automatically
+# Check whether --enable-autolink-libatomic was given.
+if test "${enable_autolink_libatomic+set}" = set; then :
+  enableval=$enable_autolink_libatomic;
+  case $enable_autolink_libatomic in
+    yes | no) ;;
+    *) as_fn_error $? "'$enable_autolink_libatomic' is an invalid value for
+--enable-autolink-libatomic.  Valid choices are 'yes' and 'no'." "$LINENO" 5 ;;
+  esac
+
+else
+  enable_autolink_libatomic=''
+fi
+
+
+if test x$enable_autolink_libatomic = xyes; then
+  if echo " ${TARGET_CONFIGDIRS} " | grep " libatomic " > /dev/null 2>&1 ; then
+
+$as_echo "#define ENABLE_AUTOLINK_LIBATOMIC 1" >>confdefs.h
+
+  else
+    { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libatomic is not build for this target, --enable-autolink-libatomic ignored" >&5
+$as_echo "$as_me: WARNING: libatomic is not build for this target, --enable-autolink-libatomic ignored" >&2;}
+  fi
+fi
+
+ 
+ # -------------------------
+ # Checks for other programs
+@@ -34296,4 +34325,3 @@ if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+ $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+ fi
+ 
+-
+diff --git a/gcc/configure.ac b/gcc/configure.ac
+index e683d3a7a5f..07c81c78336 100644
+--- a/gcc/configure.ac
+++ b/gcc/configure.ac
+@@ -1205,6 +1205,27 @@ AC_ARG_WITH(multilib-generator,
+ :,
+ with_multilib_generator=default)
+ 
+# If libatomic is available, whether it should be linked automatically
+AC_ARG_ENABLE(autolink-libatomic,
+[AS_HELP_STRING([--enable-autolink-libatomic],
+		[enable automatic linking of libatomic (ignored if not built)])],
+[
+  case $enable_autolink_libatomic in
+    yes | no) ;;
+    *) AC_MSG_ERROR(['$enable_autolink_libatomic' is an invalid value for
+--enable-autolink-libatomic.  Valid choices are 'yes' and 'no'.]) ;;
+  esac
+], [enable_autolink_libatomic=''])
+
+if test x$enable_autolink_libatomic = xyes; then
+  if echo " ${TARGET_CONFIGDIRS} " | grep " libatomic " > /dev/null 2>&1 ; then
+    AC_DEFINE(ENABLE_AUTOLINK_LIBATOMIC, 1,
+	[Define if libatomic should always be linked.])
+  else
+    AC_MSG_WARN([libatomic is not build for this target, --enable-autolink-libatomic ignored])
+  fi
+fi
+
+ # -------------------------
+ # Checks for other programs
+ # -------------------------
+@@ -7839,4 +7860,3 @@ done
+ ], 
+ [subdirs='$subdirs'])
+ AC_OUTPUT
+-
+diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
+index 48408d842db..c90be0ee750 100644
+--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
+@@ -2295,6 +2295,14 @@ files, but these changed header paths may conflict with some compilation
+ environments.  Enabled by default, and may be disabled using
+ @option{--disable-canonical-system-headers}.
+ 
+@item --enable-autolink-libatomic
+@itemx --disable-autolink-libatomic
+Tell GCC that it should automatically link libatomic; if supported by
+the linker, the file is only linked as needed. This flag is ignored
+when libatomic is not built. Note that this conigure flag is in particular
+useful when building an offloading-target compiler; as for those, a
+user had to specify @code{-foffload=target=-latomic} otherwise.
+
+ @item --with-glibc-version=@var{major}.@var{minor}
+ Tell GCC that when the GNU C Library (glibc) is used on the target it
+ will be version @var{major}.@var{minor} or later.  Normally this can
+diff --git a/gcc/doc/tm.texi b/gcc/doc/tm.texi
+index c5006afc00d..56b62c69ae8 100644
+--- a/gcc/doc/tm.texi
+++ b/gcc/doc/tm.texi
+@@ -381,7 +381,13 @@ the argument @option{-lgcc} to tell the linker to do the search.
+ 
+ @defmac LINK_GCC_C_SEQUENCE_SPEC
+ The sequence in which libgcc and libc are specified to the linker.
+-By default this is @code{%G %L %G}.
+By default this is @code{%G LINK_LIBATOMIC_SPEC %L %G}.
+@end defmac
+
+@defmac LINK_LIBATOMIC_SPEC
+This macro is used in the default @code{LINK_GCC_C_SEQUENCE_SPEC} to link
+libatomic. By default, it is unset unless @code{ENABLE_AUTOLINK_LIBATOMIC}
+is set.
+ @end defmac
+ 
+ @defmac POST_LINK_SPEC
+diff --git a/gcc/doc/tm.texi.in b/gcc/doc/tm.texi.in
+index f869ddd5e5b..57c93f24ac3 100644
+--- a/gcc/doc/tm.texi.in
+++ b/gcc/doc/tm.texi.in
+@@ -381,7 +381,13 @@ the argument @option{-lgcc} to tell the linker to do the search.
+ 
+ @defmac LINK_GCC_C_SEQUENCE_SPEC
+ The sequence in which libgcc and libc are specified to the linker.
+-By default this is @code{%G %L %G}.
+By default this is @code{%G LINK_LIBATOMIC_SPEC %L %G}.
+@end defmac
+
+@defmac LINK_LIBATOMIC_SPEC
+This macro is used in the default @code{LINK_GCC_C_SEQUENCE_SPEC} to link
+libatomic. By default, it is unset unless @code{ENABLE_AUTOLINK_LIBATOMIC}
+is set.
+ @end defmac
+ 
+ @defmac POST_LINK_SPEC
+diff --git a/gcc/gcc.cc b/gcc/gcc.cc
+index 735b2b1bba1..f10f3c91aa7 100644
+--- a/gcc/gcc.cc
+++ b/gcc/gcc.cc
+@@ -987,13 +987,23 @@ proper position among the other output files.  */
+ # define ASM_DEBUG_OPTION_SPEC ""
+ #endif
+ 
+#if !defined(LINK_LIBATOMIC_SPEC) && defined(ENABLE_AUTOLINK_LIBATOMIC)
+#  ifdef LD_AS_NEEDED_OPTION
+#    define LINK_LIBATOMIC_SPEC LD_AS_NEEDED_OPTION " -latomic " LD_NO_AS_NEEDED_OPTION
+#  else
+#    define LINK_LIBATOMIC_SPEC "-latomic"
+#  endif
+#elif !defined(LINK_LIBATOMIC_SPEC)
+#  define LINK_LIBATOMIC_SPEC ""
+#endif
+
+ /* Here is the spec for running the linker, after compiling all files.  */
+ 
+ /* This is overridable by the target in case they need to specify the
+    -lgcc and -lc order specially, yet not require them to override all
+    of LINK_COMMAND_SPEC.  */
+ #ifndef LINK_GCC_C_SEQUENCE_SPEC
+-#define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:%L %G}"
+#define LINK_GCC_C_SEQUENCE_SPEC "%G %{!nolibc:" LINK_LIBATOMIC_SPEC " %L %G}"
+ #endif
+ 
+ #ifdef ENABLE_DEFAULT_SSP
--- a/cross/gcc-riscv64/0036-configure-fix-detection-of-atomic-builtins-in-libato.patch
+++ b/cross/gcc-riscv64/0036-configure-fix-detection-of-atomic-builtins-in-libato.patch
@ -0,0 +1,54 @@
+From 4baaeb9661fa4015d9701e3616ce1ad4e8a07fd8 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sun, 29 Aug 2021 09:45:27 +0200
+Subject: [PATCH] configure: fix detection of atomic builtins in libatomic
+ configure script
+
+Alpine's --enable-autolink-libatomic (which is enabled for riscv64 by
+default) causes the libatomic configure script to incorrectly detect
+which builtins are available on riscv64. This then causes incorrect code
+generation for libatomic since it assumes compiler builtins to be
+available which are not actually available on riscv64.
+
+This commit fixes this issue by disabling linking of libatomic configure
+test code entirely, thereby preventing linking against libatomic.
+
+See:
+
+* https://gitlab.alpinelinux.org/alpine/aports/-/issues/12948
+* https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101996#c6
+---
+ libatomic/configure.tgt | 20 ++++++++++++++++++++
+ 1 file changed, 20 insertions(+)
+
+diff --git a/libatomic/configure.tgt b/libatomic/configure.tgt
+index 33f8c91ce77..3999db2cf8a 100644
+--- a/libatomic/configure.tgt
+++ b/libatomic/configure.tgt
+@@ -30,6 +30,26 @@
+ # on ${target_cpu}.  For example to allow proper use of multilibs.
+ configure_tgt_pre_target_cpu_XCFLAGS="${XCFLAGS}"
+ 
+# The libatomic configure script performs several checks to determine
+# whether builtins for atomic operations are available. When compiling
+# with --enable-autolink-libatomic the test code compiled by the
+# configure script is also linked against libatomic. This causes it
+# to think that builtins are available, even if there are not, since
+# the tested symbols are provided by libatomic.
+#
+# This is a hack to ensure that we don't link against libatomic by not
+# linking any configure test code at all when --enable-autolink-libatomic
+# is given.
+#
+# See:
+#
+#   * https://gitlab.alpinelinux.org/alpine/aports/-/issues/12817
+#   * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101996#c4
+#
+if test x$enable_autolink_libatomic = xyes; then
+	gcc_no_link=yes
+fi
+
+ case "${target_cpu}" in
+   alpha*)
+ 	# fenv.c needs this option to generate inexact exceptions.
--- a/cross/gcc-riscv64/0037-libgo-Recognize-off64_t-and-loff_t-definitions-of-mu.patch
+++ b/cross/gcc-riscv64/0037-libgo-Recognize-off64_t-and-loff_t-definitions-of-mu.patch
@ -0,0 +1,199 @@
+From 3b9243b891cc06373639a23ed5717b0d1c2d8ea6 Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Tue, 14 Jun 2022 06:13:43 -0700
+Subject: [PATCH] libgo: permit loff_t and off_t to be macros
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+They are macros in musl libc, rather than typedefs, and -fgo-dump-spec
+doesn't handle that case.
+
+Based on patch by Sören Tempel.
+
+Change-Id: Ic9a608fd964a6f78e754aa8e3100aff06ab3dade
+Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/412075
+Reviewed-by: Ian Lance Taylor <iant@google.com>
+Reviewed-by: Cherry Mui <cherryyz@google.com>
+
+libgo: #include <sys/types.h> when checking for loff_t
+
+Fixes https://gcc.gnu.org/PR106033
+Fixes golang/go#53469
+
+Change-Id: I060021b7bb9334949b567442448abb6822fd6d35
+Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/413214
+Reviewed-by: Cherry Mui <cherryyz@google.com>
+Reviewed-by: Than McIntosh <thanm@google.com>
+---
+ libgo/config.h.in                 |  3 +++
+ libgo/configure                   | 12 ++++++++++--
+ libgo/configure.ac                | 11 +++++++++--
+ libgo/go/syscall/libcall_linux.go | 17 +++++++++--------
+ libgo/mksysinfo.sh                |  6 +-----
+ libgo/sysinfo.c                   | 15 ++++++++++++++-
+ 6 files changed, 46 insertions(+), 18 deletions(-)
+
+diff --git a/libgo/config.h.in b/libgo/config.h.in
+index 25b8ab8f9ee..2c3c7469675 100644
+--- a/libgo/config.h.in
+++ b/libgo/config.h.in
+@@ -70,6 +70,9 @@
+ /* Define to 1 if you have the `fchownat' function. */
+ #undef HAVE_FCHOWNAT
+ 
+/* Define to 1 if you have the <fcntl.h> header file. */
+#undef HAVE_FCNTL_H
+
+ /* Define to 1 if you have the `futimesat' function. */
+ #undef HAVE_FUTIMESAT
+ 
+diff --git a/libgo/configure b/libgo/configure
+index ffe17c9be55..61a49947eb9 100755
+--- a/libgo/configure
+++ b/libgo/configure
+@@ -15249,7 +15249,7 @@ $as_echo "#define HAVE_GETIPINFO 1" >>confdefs.h
+   fi
+ 
+ 
+-for ac_header in port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h
+for ac_header in fcntl.h port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h
+ do :
+   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+@@ -15546,7 +15546,14 @@ _ACEOF
+ 
+ fi
+ 
+-ac_fn_c_check_type "$LINENO" "loff_t" "ac_cv_type_loff_t" "$ac_includes_default"
+
+CFLAGS_hold="$CFLAGS"
+CFLAGS="$OSCFLAGS $CFLAGS"
+ac_fn_c_check_type "$LINENO" "loff_t" "ac_cv_type_loff_t" "
+#include <sys/types.h>
+#include <fcntl.h>
+
+"
+ if test "x$ac_cv_type_loff_t" = xyes; then :
+ 
+ cat >>confdefs.h <<_ACEOF
+@@ -15556,6 +15563,7 @@ _ACEOF
+ 
+ fi
+ 
+CFLAGS="$CFLAGS_hold"
+ 
+ LIBS_hold="$LIBS"
+ LIBS="$LIBS -lm"
+diff --git a/libgo/configure.ac b/libgo/configure.ac
+index 7e2b98ba67c..274fcfc35c7 100644
+--- a/libgo/configure.ac
+++ b/libgo/configure.ac
+@@ -579,7 +579,7 @@ AC_C_BIGENDIAN
+ 
+ GCC_CHECK_UNWIND_GETIPINFO
+ 
+-AC_CHECK_HEADERS(port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h)
+AC_CHECK_HEADERS(fcntl.h port.h sched.h semaphore.h sys/file.h sys/mman.h syscall.h sys/epoll.h sys/event.h sys/inotify.h sys/ptrace.h sys/syscall.h sys/sysctl.h sys/user.h sys/utsname.h sys/select.h sys/socket.h net/bpf.h net/if.h net/if_arp.h net/route.h netpacket/packet.h sys/prctl.h sys/mount.h sys/vfs.h sys/statfs.h sys/timex.h sys/sysinfo.h utime.h linux/ether.h linux/fs.h linux/ptrace.h linux/reboot.h netinet/in_syst.h netinet/ip.h netinet/ip_mroute.h netinet/if_ether.h lwp.h)
+ 
+ AC_CHECK_HEADERS([netinet/icmp6.h], [], [],
+ [#include <netinet/in.h>
+@@ -601,7 +601,14 @@ AC_STRUCT_DIRENT_D_TYPE
+ 
+ AC_CHECK_FUNCS(accept4 dup3 epoll_create1 faccessat fallocate fchmodat fchownat futimesat getxattr inotify_add_watch inotify_init inotify_init1 inotify_rm_watch listxattr mkdirat mknodat open64 openat pipe2 removexattr renameat setxattr sync_file_range splice syscall tee unlinkat unshare utimensat)
+ AC_TYPE_OFF_T
+-AC_CHECK_TYPES([loff_t])
+
+CFLAGS_hold="$CFLAGS"
+CFLAGS="$OSCFLAGS $CFLAGS"
+AC_CHECK_TYPES([loff_t], [], [], [[
+#include <sys/types.h>
+#include <fcntl.h>
+]])
+CFLAGS="$CFLAGS_hold"
+ 
+ LIBS_hold="$LIBS"
+ LIBS="$LIBS -lm"
+diff --git a/libgo/go/syscall/libcall_linux.go b/libgo/go/syscall/libcall_linux.go
+index 96974bd3269..65eb1a745f7 100644
+--- a/libgo/go/syscall/libcall_linux.go
+++ b/libgo/go/syscall/libcall_linux.go
+@@ -209,19 +209,20 @@ func Gettid() (tid int) {
+ //sys	Setxattr(path string, attr string, data []byte, flags int) (err error)
+ //setxattr(path *byte, name *byte, value *byte, size Size_t, flags _C_int) _C_int
+ 
+-//sys	splice(rfd int, roff *_loff_t, wfd int, woff *_loff_t, len int, flags int) (n int64, err error)
+-//splice(rfd _C_int, roff *_loff_t, wfd _C_int, woff *_loff_t, len Size_t, flags _C_uint) Ssize_t
+//sys	splice(rfd int, roff *_libgo_loff_t_type, wfd int, woff *_libgo_loff_t_type, len int, flags int) (n int64, err error)
+//splice(rfd _C_int, roff *_libgo_loff_t_type, wfd _C_int, woff *_libgo_loff_t_type, len Size_t, flags _C_uint) Ssize_t
+
+ func Splice(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int64, err error) {
+-	var lroff _loff_t
+-	var plroff *_loff_t
+	var lroff _libgo_loff_t_type
+	var plroff *_libgo_loff_t_type
+ 	if roff != nil {
+-		lroff = _loff_t(*roff)
+		lroff = _libgo_loff_t_type(*roff)
+ 		plroff = &lroff
+ 	}
+-	var lwoff _loff_t
+-	var plwoff *_loff_t
+	var lwoff _libgo_loff_t_type
+	var plwoff *_libgo_loff_t_type
+ 	if woff != nil {
+-		lwoff = _loff_t(*woff)
+		lwoff = _libgo_loff_t_type(*woff)
+ 		plwoff = &lwoff
+ 	}
+ 	n, err = splice(rfd, plroff, wfd, plwoff, len, flags)
+diff --git a/libgo/mksysinfo.sh b/libgo/mksysinfo.sh
+index 0c52ea5d71a..5aa309155c3 100755
+--- a/libgo/mksysinfo.sh
+++ b/libgo/mksysinfo.sh
+@@ -403,11 +403,7 @@ fi
+ # Some basic types.
+ echo 'type Size_t _size_t' >> ${OUT}
+ echo "type Ssize_t _ssize_t" >> ${OUT}
+-if grep '^const _HAVE_OFF64_T = ' gen-sysinfo.go > /dev/null 2>&1; then
+-  echo "type Offset_t _off64_t" >> ${OUT}
+-else
+-  echo "type Offset_t _off_t" >> ${OUT}
+-fi
+echo "type Offset_t _libgo_off_t_type" >> ${OUT}
+ echo "type Mode_t _mode_t" >> ${OUT}
+ echo "type Pid_t _pid_t" >> ${OUT}
+ echo "type Uid_t _uid_t" >> ${OUT}
+diff --git a/libgo/sysinfo.c b/libgo/sysinfo.c
+index 336a5983750..fc0210992fa 100644
+--- a/libgo/sysinfo.c
+++ b/libgo/sysinfo.c
+@@ -354,6 +354,18 @@ enum {
+ };
+ #endif
+ 
+#if defined(HAVE_LOFF_T)
+// loff_t can be defined as a macro; for -fgo-dump-spec make sure we
+// see a typedef.
+typedef loff_t libgo_loff_t_type;
+#endif
+
+#if defined(HAVE_OFF64_T)
+typedef off64_t libgo_off_t_type;
+#else
+typedef off_t libgo_off_t_type;
+#endif
+
+ // The following section introduces explicit references to types and
+ // constants of interest to support bootstrapping libgo using a
+ // compiler that doesn't support -fdump-go-spec (e.g., clang), via
+@@ -534,7 +546,8 @@ SREF(timex);
+ // From sys/types.h
+ TREF(pid_t);
+ TREF(off_t);
+-TREF(loff_t);
+TREF(libgo_loff_t_type);
+TREF(libgo_off_t_type);
+ TREF(size_t);
+ TREF(ssize_t);
+ TREF(mode_t);
--- a/cross/gcc-riscv64/0039-gcc-go-Use-int64-type-as-offset-argument-for-mmap.patch
+++ b/cross/gcc-riscv64/0039-gcc-go-Use-int64-type-as-offset-argument-for-mmap.patch
@ -0,0 +1,39 @@
+From 4b6240d5301ce04b8bbc3e2152915cbc7da80584 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Wed, 28 Sep 2022 17:30:14 +0200
+Subject: [PATCH] libgo: use _off_t for mmap offset argument
+
+On glibc-based systems, off_t is a 32-bit type on 32-bit systems and a
+64-bit type on 64-bit systems by default. However, on systems using musl
+libc off_t is unconditionally a 64-bit type. As such, it is insufficient
+to use a uintptr type for the mmap offset parameter.
+
+Presently, the (incorrect) mmap declaration causes a libgo run-time
+failure on 32-bit musl systems (fatal error: runtime: cannot allocate
+memory). This commit fixes this run-time error.
+---
+ libgo/go/runtime/mem_gccgo.go | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/libgo/go/runtime/mem_gccgo.go b/libgo/go/runtime/mem_gccgo.go
+index fa3389d8..07bf325a 100644
+--- a/libgo/go/runtime/mem_gccgo.go
+++ b/libgo/go/runtime/mem_gccgo.go
+@@ -15,7 +15,7 @@ import (
+ //go:linkname sysFree
+ 
+ //extern mmap
+-func sysMmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uintptr) unsafe.Pointer
+func sysMmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off _off_t) unsafe.Pointer
+ 
+ //extern munmap
+ func munmap(addr unsafe.Pointer, length uintptr) int32
+@@ -38,7 +38,7 @@ func init() {
+ }
+ 
+ func mmap(addr unsafe.Pointer, n uintptr, prot, flags, fd int32, off uintptr) (unsafe.Pointer, int) {
+-	p := sysMmap(addr, n, prot, flags, fd, off)
+	p := sysMmap(addr, n, prot, flags, fd, _off_t(off))
+ 	if uintptr(p) == _MAP_FAILED {
+ 		return nil, errno()
+ 	}
--- a/cross/gcc-riscv64/0041-go-gospec-forcibly-disable-fsplit-stack-support.patch
+++ b/cross/gcc-riscv64/0041-go-gospec-forcibly-disable-fsplit-stack-support.patch
@ -0,0 +1,71 @@
+From c86b726c048eddc1be320c0bf64a897658bee13d Mon Sep 17 00:00:00 2001
+From: Uros Bizjak <ubizjak@gmail.com>
+Date: Wed, 18 May 2022 20:03:26 +0200
+Subject: [PATCH] x86: Fix -fsplit-stack feature detection via 
+ TARGET_CAN_SPLIT_STACK
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Since commit c163647ffbc9a20c8feb6e079dbecccfe016c82e -fsplit-stack
+is only supported on glibc targets. However, this original commit
+required some fixups. As part of the fixup, the changes to the
+gnu-user-common.h and gnu.h were partially reverted in commit
+60953a23d57b13a672f751bec0c6eefc059eb1ab thus causing TARGET_CAN_SPLIT_STACK
+to be defined for non-glibc targets even though -fsplit-stack is
+actually not supported and attempting to use it causes a runtime error.
+
+This causes gcc internal code, such as ./gcc/go/gospec.c to not
+correctly detect that -fsplit-stack is not supported and thus causes
+gccgo to fail compilation on non-glibc targets.
+
+This commit ensures that TARGET_CAN_SPLIT_STACK is only set if the
+default libc is glibc. It is presently unclear to me if there is a
+better way to detect glibc at pre-processor time.
+
+The proposed changes have been tested on x86 and x86_64 Alpine Linux
+(which uses musl libc) and fix compilation of gccgo for this target.
+
+Signed-off-by: Sören Tempel <soeren@soeren-tempel.net>
+
+gcc/ChangeLog:
+
+	* config/i386/gnu-user-common.h (defined): Only define
+	TARGET_CAN_SPLIT_STACK for glibc targets.
+	* config/i386/gnu.h (defined): Ditto.
+---
+ gcc/config/i386/gnu-user-common.h | 5 +++--
+ gcc/config/i386/gnu.h             | 5 +++--
+ 2 files changed, 6 insertions(+), 4 deletions(-)
+
+diff --git a/gcc/config/i386/gnu-user-common.h b/gcc/config/i386/gnu-user-common.h
+index 23b54c5be52..cab9be2bfb7 100644
+--- a/gcc/config/i386/gnu-user-common.h
+++ b/gcc/config/i386/gnu-user-common.h
+@@ -66,7 +66,8 @@ along with GCC; see the file COPYING3.  If not see
+ #define STACK_CHECK_STATIC_BUILTIN 1
+ 
+ /* We only build the -fsplit-stack support in libgcc if the
+-   assembler has full support for the CFI directives.  */
+-#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE
+   assembler has full support for the CFI directives.  Also
+   we only support -fsplit-stack on glibc targets.  */
+#if (DEFAULT_LIBC == LIBC_GLIBC) && HAVE_GAS_CFI_PERSONALITY_DIRECTIVE
+ #define TARGET_CAN_SPLIT_STACK
+ #endif
+diff --git a/gcc/config/i386/gnu.h b/gcc/config/i386/gnu.h
+index 401e60c9a02..fb8d69a97d8 100644
+--- a/gcc/config/i386/gnu.h
+++ b/gcc/config/i386/gnu.h
+@@ -41,8 +41,9 @@ along with GCC.  If not, see <http://www.gnu.org/licenses/>.
+ #define TARGET_THREAD_SSP_OFFSET        0x14
+ 
+ /* We only build the -fsplit-stack support in libgcc if the
+-   assembler has full support for the CFI directives.  */
+-#if HAVE_GAS_CFI_PERSONALITY_DIRECTIVE
+   assembler has full support for the CFI directives.  Also
+   we only support -fsplit-stack on glibc targets.  */
+#if (DEFAULT_LIBC == LIBC_GLIBC) && HAVE_GAS_CFI_PERSONALITY_DIRECTIVE
+ #define TARGET_CAN_SPLIT_STACK
+ #endif
+ /* We steal the last transactional memory word.  */
--- a/cross/gcc-riscv64/0042-gcc-go-fix-build-error-with-SYS_SECCOMP.patch
+++ b/cross/gcc-riscv64/0042-gcc-go-fix-build-error-with-SYS_SECCOMP.patch
@ -0,0 +1,41 @@
+From 548720bca6bff21ebc9aba22249d9ce45bbd90c7 Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Wed, 29 Jun 2022 15:32:04 -0700
+Subject: [PATCH] libgo: handle stat st_atim32 field and SYS_SECCOMP
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Patches for musl support, from Sören Tempel.
+
+Fixes https://gcc.gnu.org/PR105225
+
+Change-Id: If396877d4a4c7d27962226d7a6e3bb91b1344413
+Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/415294
+Reviewed-by: Than McIntosh <thanm@google.com>
+Reviewed-by: Ian Lance Taylor <iant@google.com>
+---
+ libgo/mksysinfo.sh | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/libgo/mksysinfo.sh b/libgo/mksysinfo.sh
+index 5aa30915..ea1fa17d 100755
+--- a/libgo/mksysinfo.sh
+++ b/libgo/mksysinfo.sh
+@@ -127,6 +127,7 @@ fi
+ 
+ # The syscall numbers.  We force the names to upper case.
+ grep '^const _SYS_' gen-sysinfo.go | \
+  grep -v '^const _SYS_SECCOMP = ' | \
+   sed -e 's/const _\(SYS_[^= ]*\).*$/\1/' | \
+   while read sys; do
+     sup=`echo $sys | tr abcdefghijklmnopqrstuvwxyz ABCDEFGHIJKLMNOPQRSTUVWXYZ`
+@@ -506,7 +507,7 @@ fi
+ 
+ # For historical reasons Go uses the suffix "timespec" instead of "tim" for
+ # stat_t's time fields on NetBSD.
+-st_times='-e s/st_atim/Atim/ -e s/st_mtim/Mtim/ -e s/st_ctim/Ctim/'
+st_times='-e s/st_atim/Atim/g -e s/st_mtim/Mtim/g -e s/st_ctim/Ctim/g'
+ if test "${GOOS}" = "netbsd"; then
+     st_times='-e s/st_atim/Atimespec/ -e s/st_mtim/Mtimespec/ -e s/st_ctim/Ctimespec/'
+ fi
--- a/cross/gcc-riscv64/0043-libstdc-do-not-throw-exceptions-for-non-C-locales-on.patch
+++ b/cross/gcc-riscv64/0043-libstdc-do-not-throw-exceptions-for-non-C-locales-on.patch
@ -0,0 +1,24 @@
+From 20c84de53efcb86993f1a1909e65a97240d6123e Mon Sep 17 00:00:00 2001
+From: Samuel Holland <samuel@sholland.org>
+Date: Thu, 30 Jun 2022 17:08:36 +0000
+Subject: [PATCH] libstdc++: do not throw exceptions for non-C locales on musl
+ targets
+
+---
+ libstdc++-v3/config/locale/generic/c_locale.cc | 3 ---
+ 1 file changed, 3 deletions(-)
+
+diff --git a/libstdc++-v3/config/locale/generic/c_locale.cc b/libstdc++-v3/config/locale/generic/c_locale.cc
+index 1e4db8d4415..9b79bc3c5dd 100644
+--- a/libstdc++-v3/config/locale/generic/c_locale.cc
+++ b/libstdc++-v3/config/locale/generic/c_locale.cc
+@@ -242,9 +242,6 @@ _GLIBCXX_BEGIN_NAMESPACE_VERSION
+     // Currently, the generic model only supports the "C" locale.
+     // See http://gcc.gnu.org/ml/libstdc++/2003-02/msg00345.html
+     __cloc = 0;
+-    if (strcmp(__s, "C"))
+-      __throw_runtime_error(__N("locale::facet::_S_create_c_locale "
+-			    "name not valid"));
+   }
+ 
+   void
--- a/cross/gcc-riscv64/0044-gdc-unconditionally-link-libgphobos-against-libucont.patch
+++ b/cross/gcc-riscv64/0044-gdc-unconditionally-link-libgphobos-against-libucont.patch
@ -0,0 +1,23 @@
+From b6554d1207d0f5771c2f5d11316b61787e4dd705 Mon Sep 17 00:00:00 2001
+From: Mathias LANG <pro.mathias.lang@gmail.com>
+Date: Mon, 17 Jan 2022 16:31:09 +0000
+Subject: [PATCH] gdc: unconditionally link libgphobos against libucontext
+
+ref: alpine/aports#13422
+---
+ Makefile.in | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/Makefile.in b/Makefile.in
+index a95c7407d16..ea942d60387 100644
+--- a/Makefile.in
+++ b/Makefile.in
+@@ -53287,7 +53287,7 @@ configure-target-libphobos:
+ 	esac; \
+ 	module_srcdir=libphobos; \
+ 	rm -f no-such-file || : ; \
+-	CONFIG_SITE=no-such-file $(SHELL) \
+	CONFIG_SITE=no-such-file LIBS="-lucontext $$LIBS" $(SHELL) \
+ 	  $$s/$$module_srcdir/configure \
+ 	  --srcdir=$${topdir}/$$module_srcdir \
+ 	  $(TARGET_CONFIGARGS) --build=${build_alias} --host=${target_alias} \
--- a/cross/gcc-riscv64/0045-druntime-link-against-libucontext-on-all-platforms.patch
+++ b/cross/gcc-riscv64/0045-druntime-link-against-libucontext-on-all-platforms.patch
@ -0,0 +1,51 @@
+From 39f5c9a850917a3c19630c0115ef0d5b0f151c72 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sat, 16 Jul 2022 13:26:49 +0200
+Subject: [PATCH] druntime: link against libucontext on all platforms
+
+On musl-based Linux distributions, swapcontext etc. are not provided by
+musl but instead by libucontext. Hence, we _always_ need to link against
+an external library for these functions.
+---
+ libphobos/configure                | 8 --------
+ libphobos/m4/druntime/libraries.m4 | 8 --------
+ 2 files changed, 16 deletions(-)
+
+diff --git a/libphobos/configure b/libphobos/configure
+index 9da06f087d0..0db0acfb9c2 100755
+--- a/libphobos/configure
+++ b/libphobos/configure
+@@ -15192,14 +15192,6 @@ fi
+   # Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
+   # "yes" for targets that have 'version = AsmExternal'.
+   druntime_fiber_asm_external=no
+-  case "$target_cpu" in
+-    aarch64* | \
+-    arm* | \
+-    i[34567]86|x86_64 | \
+-    powerpc)
+-      druntime_fiber_asm_external=yes
+-      ;;
+-  esac
+   if test "$druntime_fiber_asm_external" = no; then
+     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing swapcontext" >&5
+ $as_echo_n "checking for library containing swapcontext... " >&6; }
+diff --git a/libphobos/m4/druntime/libraries.m4 b/libphobos/m4/druntime/libraries.m4
+index 45a56f6f76a..fef6e890b1e 100644
+--- a/libphobos/m4/druntime/libraries.m4
+++ b/libphobos/m4/druntime/libraries.m4
+@@ -220,14 +220,6 @@ AC_DEFUN([DRUNTIME_LIBRARIES_UCONTEXT],
+   # Keep this in sync with core/thread.d, set druntime_fiber_asm_external to
+   # "yes" for targets that have 'version = AsmExternal'.
+   druntime_fiber_asm_external=no
+-  case "$target_cpu" in
+-    aarch64* | \
+-    arm* | \
+-    i[[34567]]86|x86_64 | \
+-    powerpc)
+-      druntime_fiber_asm_external=yes
+-      ;;
+-  esac
+   if test "$druntime_fiber_asm_external" = no; then
+     AC_SEARCH_LIBS([swapcontext], [c ucontext], [],
+       AC_MSG_ERROR([swapcontext required but not found]))
--- a/cross/gcc-riscv64/0049-libgo-adjust-name-of-union-in-sigevent-struct.patch
+++ b/cross/gcc-riscv64/0049-libgo-adjust-name-of-union-in-sigevent-struct.patch
@ -0,0 +1,108 @@
+From 8f1a91aeff400d572857895b7f5e863ec5a4d93e Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Mon, 26 Sep 2022 15:03:53 -0400
+Subject: [PATCH] runtime: portable access to sigev_notify_thread_id
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Previously, libgo relied on the _sigev_un implementation-specific
+field in struct sigevent, which is only available on glibc.
+This patch uses the sigev_notify_thread_id macro instead which is
+mandated by timer_create(2). In theory, this should work with any libc
+implementation for Linux. Unfortunately, there is an open glibc bug
+as glibc does not define this macro. For this reason, a glibc-specific
+workaround is required. Other libcs (such as musl) define the macro
+and don't require the workaround.
+
+See https://sourceware.org/bugzilla/show_bug.cgi?id=27417
+
+This makes libgo compatible with musl libc.
+
+Based on patch by Sören Tempel.
+
+Change-Id: I0924a53d5212730ebc395ecf9199f85967be8cc6
+Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/434755
+Reviewed-by: Cherry Mui <cherryyz@google.com>
+Reviewed-by: Than McIntosh <thanm@google.com>
+---
+ libgo/go/runtime/os_linux.go | 12 +++++++++++-
+ libgo/runtime/go-signal.c    | 18 ++++++++++++++++++
+ 2 files changed, 29 insertions(+), 1 deletion(-)
+
+diff --git a/libgo/go/runtime/os_linux.go b/libgo/go/runtime/os_linux.go
+index 96fb1788..2b2d827c 100644
+--- a/libgo/go/runtime/os_linux.go
+++ b/libgo/go/runtime/os_linux.go
+@@ -22,6 +22,12 @@ type mOS struct {
+ 	profileTimerValid uint32
+ }
+ 
+// setSigeventTID is written in C to set the sigev_notify_thread_id
+// field of a sigevent struct.
+//
+//go:noescape
+func setSigeventTID(*_sigevent, int32)
+
+ func getProcID() uint64 {
+ 	return uint64(gettid())
+ }
+@@ -52,9 +58,12 @@ const (
+ )
+ 
+ // Atomically,
+//
+ //	if(*addr == val) sleep
+//
+ // Might be woken up spuriously; that's allowed.
+ // Don't sleep longer than ns; ns < 0 means forever.
+//
+ //go:nosplit
+ func futexsleep(addr *uint32, val uint32, ns int64) {
+ 	// Some Linux kernels have a bug where futex of
+@@ -73,6 +82,7 @@ func futexsleep(addr *uint32, val uint32, ns int64) {
+ }
+ 
+ // If any procs are sleeping on addr, wake up at most cnt.
+//
+ //go:nosplit
+ func futexwakeup(addr *uint32, cnt uint32) {
+ 	ret := futex(unsafe.Pointer(addr), _FUTEX_WAKE_PRIVATE, cnt, nil, nil, 0)
+@@ -365,7 +375,7 @@ func setThreadCPUProfiler(hz int32) {
+ 	var sevp _sigevent
+ 	sevp.sigev_notify = _SIGEV_THREAD_ID
+ 	sevp.sigev_signo = _SIGPROF
+-	*((*int32)(unsafe.Pointer(&sevp._sigev_un))) = int32(mp.procid)
+	setSigeventTID(&sevp, int32(mp.procid))
+ 	ret := timer_create(_CLOCK_THREAD_CPUTIME_ID, &sevp, &timerid)
+ 	if ret != 0 {
+ 		// If we cannot create a timer for this M, leave profileTimerValid false
+diff --git a/libgo/runtime/go-signal.c b/libgo/runtime/go-signal.c
+index 528d9b6d..aa1b6305 100644
+--- a/libgo/runtime/go-signal.c
+++ b/libgo/runtime/go-signal.c
+@@ -183,6 +183,24 @@ setSigactionHandler(struct sigaction* sa, uintptr handler)
+ 	sa->sa_sigaction = (void*)(handler);
+ }
+ 
+#ifdef __linux__
+
+// Workaround for https://sourceware.org/bugzilla/show_bug.cgi?id=27417
+#ifndef sigev_notify_thread_id
+  #define sigev_notify_thread_id _sigev_un._tid
+#endif
+
+void setSigeventTID(struct sigevent*, int32_t)
+	__asm__ (GOSYM_PREFIX "runtime.setSigeventTID");
+
+void
+setSigeventTID(struct sigevent *sev, int32_t v)
+{
+	sev->sigev_notify_thread_id = v;
+}
+
+#endif // defined(__linux__)
+
+ // C code to fetch values from the siginfo_t and ucontext_t pointers
+ // passed to a signal handler.
+ 
--- a/cross/gcc-riscv64/0050-libphobos-don-t-define-__mode_t-twice-on-musl-target.patch
+++ b/cross/gcc-riscv64/0050-libphobos-don-t-define-__mode_t-twice-on-musl-target.patch
@ -0,0 +1,75 @@
+From 01be086df55016ad676685c6b0dca6aa11330bfc Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Sun, 17 Jul 2022 13:38:39 +0200
+Subject: [PATCH] libphobos: don't define __mode_t twice on musl targets
+
+For musl targets, __mode_t is already aliased to uint, thus if it
+aliased in an architecture-specific if-case then it is defined twice
+which causes a build error.
+
+To-Do: Report this upstream or revise this patch in a way that is also
+works with glibc and submit that upstream.
+---
+ libphobos/libdruntime/core/sys/posix/sys/stat.d | 7 -------
+ 1 file changed, 7 deletions(-)
+
+diff --git a/libphobos/libdruntime/core/sys/posix/sys/stat.d b/libphobos/libdruntime/core/sys/posix/sys/stat.d
+index 1fb4e44cbbf..ca31bbb7ccf 100644
+--- a/libphobos/libdruntime/core/sys/posix/sys/stat.d
+++ b/libphobos/libdruntime/core/sys/posix/sys/stat.d
+@@ -167,7 +167,6 @@ version (linux)
+             alias __dev_t = ulong;
+             alias __ino_t = c_ulong;
+             alias __ino64_t = ulong;
+-            alias __mode_t = uint;
+             alias __nlink_t = size_t;
+             alias __uid_t = uint;
+             alias __gid_t = uint;
+@@ -483,7 +482,6 @@ version (linux)
+             alias __dev_t = ulong;
+             alias __ino_t = c_ulong;
+             alias __ino64_t = ulong;
+-            alias __mode_t = uint;
+             alias __nlink_t = uint;
+             alias __uid_t = uint;
+             alias __gid_t = uint;
+@@ -565,7 +563,6 @@ version (linux)
+             alias __dev_t = ulong;
+             alias __ino_t = c_ulong;
+             alias __ino64_t = ulong;
+-            alias __mode_t = uint;
+             alias __nlink_t = size_t;
+             alias __uid_t = uint;
+             alias __gid_t = uint;
+@@ -660,7 +657,6 @@ version (linux)
+             alias __dev_t = ulong;
+             alias __ino_t = c_ulong;
+             alias __ino64_t = ulong;
+-            alias __mode_t = uint;
+             alias __nlink_t = uint;
+             alias __uid_t = uint;
+             alias __gid_t = uint;
+@@ -746,7 +742,6 @@ version (linux)
+             alias __dev_t = ulong;
+             alias __ino_t = c_ulong;
+             alias __ino64_t = ulong;
+-            alias __mode_t = uint;
+             alias __nlink_t = uint;
+             alias __uid_t = uint;
+             alias __gid_t = uint;
+@@ -838,7 +833,6 @@ version (linux)
+             alias __dev_t = ulong;
+             alias __ino_t = c_ulong;
+             alias __ino64_t = ulong;
+-            alias __mode_t = uint;
+             alias __nlink_t = uint;
+             alias __uid_t = uint;
+             alias __gid_t = uint;
+@@ -914,7 +908,6 @@ version (linux)
+             alias __dev_t = ulong;
+             alias __ino_t = c_ulong;
+             alias __ino64_t = ulong;
+-            alias __mode_t = uint;
+             alias __nlink_t = ulong;
+             alias __uid_t = uint;
+             alias __gid_t = uint;
--- a/cross/gcc-riscv64/0051-libgo-Explicitly-define-SYS_timer_settime-for-32-bit.patch
+++ b/cross/gcc-riscv64/0051-libgo-Explicitly-define-SYS_timer_settime-for-32-bit.patch
@ -0,0 +1,36 @@
+From d53e8a0e94e34dc609e34dd5e404debda2640cfb Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Sat, 30 Jul 2022 07:29:28 -0700
+Subject: [PATCH] libgo: use SYS_timer_settime32
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Musl defines SYS_timer_settime32, not SYS_timer_settime, on 32-bit systems.
+
+Based on patch by Sören Tempel.
+
+Change-Id: I1f3485028d132ceca1aba595325af24b4d72b894
+Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/420222
+Reviewed-by: Ian Lance Taylor <iant@google.com>
+Reviewed-by: Cherry Mui <cherryyz@google.com>
+---
+ libgo/sysinfo.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/libgo/sysinfo.c b/libgo/sysinfo.c
+index fc021099..180f5c31 100644
+--- a/libgo/sysinfo.c
+++ b/libgo/sysinfo.c
+@@ -354,6 +354,11 @@ enum {
+ };
+ #endif
+ 
+#if !defined(SYS_timer_settime) && defined(SYS_timer_settime32)
+// musl defines SYS_timer_settim32 on 32-bit systems.
+#define SYS_timer_settime SYS_timer_settime32
+#endif
+
+ #if defined(HAVE_LOFF_T)
+ // loff_t can be defined as a macro; for -fgo-dump-spec make sure we
+ // see a typedef.
--- a/cross/gcc-riscv64/0052-libgnat-time_t-is-always-64-bit-on-musl-libc.patch
+++ b/cross/gcc-riscv64/0052-libgnat-time_t-is-always-64-bit-on-musl-libc.patch
@ -0,0 +1,22 @@
+From 4b28b8356c7ecf9375a2c07ac6be226a5693f8d2 Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?S=C3=B6ren=20Tempel?= <soeren+git@soeren-tempel.net>
+Date: Tue, 19 Jul 2022 01:05:11 +0200
+Subject: [PATCH] libgnat: time_t is always 64-bit on musl libc
+
+---
+ gcc/ada/libgnat/s-parame.ads | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gcc/ada/libgnat/s-parame.ads b/gcc/ada/libgnat/s-parame.ads
+index 4b8111402ba..b670e78c53b 100644
+--- a/gcc/ada/libgnat/s-parame.ads
+++ b/gcc/ada/libgnat/s-parame.ads
+@@ -102,7 +102,7 @@ package System.Parameters is
+    -- Characteristics of time_t type --
+    ------------------------------------
+ 
+-   time_t_bits : constant := Long_Integer'Size;
+   time_t_bits : constant := Long_Long_Integer'Size;
+    --  Number of bits in type time_t
+ 
+    ----------------------------------------------
--- a/cross/gcc-riscv64/0053-libgo-make-match.sh-POSIX-shell-compatible.patch
+++ b/cross/gcc-riscv64/0053-libgo-make-match.sh-POSIX-shell-compatible.patch
@ -0,0 +1,50 @@
+From a62f20ae78ddd41be682dde8cab075ca4f5dbb2a Mon Sep 17 00:00:00 2001
+From: Ian Lance Taylor <iant@golang.org>
+Date: Fri, 22 Jul 2022 11:38:20 -0700
+Subject: [PATCH] libgo: use POSIX shell arithmetic expansion
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+Avoid bash-specific ((expression)) syntax.  As the bash syntax
+converts a non-zero value to a zero status (and a zero value to a 1
+status), and POSIX arithmetic expansion does not, we have to negate
+the result.
+
+Based on patch by Sören Tempel.
+
+Change-Id: I4c64fa15de3994a1a5c7c5ec0de6a82ddd858917
+Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/419154
+Reviewed-by: Than McIntosh <thanm@google.com>
+Reviewed-by: Ian Lance Taylor <iant@google.com>
+---
+ libgo/match.sh         | 2 +-
+ libgo/testsuite/gotest | 2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/libgo/match.sh b/libgo/match.sh
+index 7ed587ff..e5ed98de 100755
+--- a/libgo/match.sh
+++ b/libgo/match.sh
+@@ -111,7 +111,7 @@ gobuild() {
+     if test "$goarch" != "386"; then
+ 	line=$(echo "$line" | sed -e "s/\\(${wrap}\\)386\\(${wrap}\\)/\10\2/g")
+     fi
+-    (($line))
+    return $((!($line)))
+ }
+ 
+ matched=
+diff --git a/libgo/testsuite/gotest b/libgo/testsuite/gotest
+index 04e4267f..0a0a7e14 100755
+--- a/libgo/testsuite/gotest
+++ b/libgo/testsuite/gotest
+@@ -302,7 +302,7 @@ gobuild() {
+     if test "$goarch" != "386"; then
+ 	line=$(echo "$line" | sed -e "s/\\(${wrap}\\)386\\(${wrap}\\)/\10\2/g")
+     fi
+-    (($line))
+    return $((!($line)))
+ }
+ 
+ case "x$gofiles" in
--- a/cross/gcc-riscv64/APKBUILD
+++ b/cross/gcc-riscv64/APKBUILD
@ -0,0 +1,812 @@
+# Automatically generated aport, do not edit!
+# Generator: pmbootstrap aportgen gcc-riscv64
+# Based on: main/gcc (from Alpine)
+
+CTARGET_ARCH=riscv64
+CTARGET="$(arch_to_hostspec ${CTARGET_ARCH})"
+LANG_D=false
+LANG_OBJC=false
+LANG_JAVA=false
+LANG_GO=false
+LANG_FORTRAN=false
+LANG_ADA=false
+options="!strip"
+
+# abuild doesn't try to tries to install "build-base-$CTARGET_ARCH"
+# when this variable matches "no*"
+BOOTSTRAP="nobuildbase"
+
+# abuild will only cross compile when this variable is set, but it
+# needs to find a valid package database in there for dependency
+# resolving, so we set it to /.
+CBUILDROOT="/"
+
+_cross_configure="--disable-bootstrap --with-sysroot=/usr/$CTARGET"
+
+pkgname=gcc-riscv64
+_pkgbase=12.2.1 # must match gcc/BASE-VER
+_pkgsnap=20220924
+pkgver=${_pkgbase}_git${_pkgsnap}
+[ "$BOOTSTRAP" = "nolibc" ] && pkgname="gcc-pass2"
+[ "$CBUILD" != "$CHOST" ] && _cross="-$CARCH" || _cross=""
+[ "$CHOST" != "$CTARGET" ] && _target="-$CTARGET_ARCH" || _target=""
+
+pkgname=gcc-riscv64
+pkgrel=3
+pkgdesc="Stage2 cross-compiler for riscv64"
+url="https://gcc.gnu.org"
+arch="x86_64"
+license="GPL-2.0-or-later LGPL-2.1-or-later"
+_gccrel=$pkgver-r$pkgrel
+depends="binutils-riscv64 mpc1"
+makedepends_build="gcc g++ bison flex texinfo gawk zip gmp-dev mpfr-dev mpc1-dev zlib-dev"
+makedepends_host="linux-headers gmp-dev mpfr-dev mpc1-dev isl-dev zlib-dev musl-dev-riscv64 binutils-riscv64"
+subpackages="g++-riscv64:gpp libstdc++-dev-riscv64:libcxx_dev"
+[ "$CHOST" = "$CTARGET" ] && subpackages="gcc-doc$_target"
+replaces="libstdc++ binutils"
+
+: "${LANG_CXX:=true}"
+: "${LANG_D:=true}"
+: "${LANG_OBJC:=true}"
+: "${LANG_GO:=true}"
+: "${LANG_FORTRAN:=true}"
+: "${LANG_ADA:=true}"
+: "${LANG_JIT:=true}"
+
+_libgomp=true
+_libgcc=false
+_libatomic=true
+_libitm=true
+
+if [ "$CHOST" != "$CTARGET" ]; then
+	if [ "$BOOTSTRAP" = nolibc ]; then
+		LANG_CXX=false
+		LANG_ADA=false
+		_libgcc=false
+		_builddir="$srcdir/build-cross-pass2"
+	else
+		_builddir="$srcdir/build-cross-final"
+	fi
+	LANG_OBJC=false
+	LANG_GO=false
+	LANG_FORTRAN=false
+	LANG_D=false
+	LANG_JIT=false
+	_libgomp=false
+	_libatomic=false
+	_libitm=false
+
+	# reset target flags (should be set in crosscreate abuild)
+	# fixup flags. seems gcc treats CPPFLAGS as global without
+	# _FOR_xxx variants. wrap it in CFLAGS and CXXFLAGS.
+	export CFLAGS="$CPPFLAGS $CFLAGS"
+	export CXXFLAGS="$CPPFLAGS $CXXFLAGS"
+	unset CPPFLAGS
+	export CFLAGS_FOR_TARGET=" "
+	export CXXFLAGS_FOR_TARGET=" "
+	export LDFLAGS_FOR_TARGET=" "
+
+	STRIP_FOR_TARGET="$CTARGET-strip"
+elif [ "$CBUILD" != "$CHOST" ]; then
+	# fixup flags. seems gcc treats CPPFLAGS as global without
+	# _FOR_xxx variants. wrap it in CFLAGS and CXXFLAGS.
+	export CFLAGS="$CPPFLAGS $CFLAGS"
+	export CXXFLAGS="$CPPFLAGS $CXXFLAGS"
+	unset CPPFLAGS
+
+	# reset flags and cc for build
+	export CC_FOR_BUILD="gcc"
+	export CXX_FOR_BUILD="g++"
+	export CFLAGS_FOR_BUILD=" "
+	export CXXFLAGS_FOR_BUILD=" "
+	export LDFLAGS_FOR_BUILD=" "
+	export CFLAGS_FOR_TARGET=" "
+	export CXXFLAGS_FOR_TARGET=" "
+	export LDFLAGS_FOR_TARGET=" "
+
+	# Languages that do not need bootstrapping
+	LANG_OBJC=false
+	LANG_GO=false
+	LANG_FORTRAN=false
+	LANG_D=false
+	LANG_JIT=false
+
+	STRIP_FOR_TARGET=${CROSS_COMPILE}strip
+	_builddir="$srcdir/build-cross-native"
+else
+	STRIP_FOR_TARGET=${CROSS_COMPILE}strip
+	_builddir="$srcdir/build"
+fi
+
+case "$CARCH" in
+# GDC hasn't been ported to PowerPC
+# See libphobos/configure.tgt in GCC sources for supported targets
+# riscv fails with: error: static assert  "unimplemented"
+ppc64le|riscv64)	LANG_D=false ;;
+# GDC does currently not work on 32-bit musl architectures.
+# This is a known upstream issue.
+# See: https://github.com/dlang/druntime/pull/3383
+armhf|armv7|x86)	LANG_D=false ;;
+esac
+
+# libitm has TEXTRELs in ARM build, so disable for now
+case "$CTARGET_ARCH" in
+arm*)		_libitm=false ;;
+mips*)		_libitm=false ;;
+riscv64)	_libitm=false ;;
+esac
+
+# Internal libffi fails to build on MIPS at the moment, need to
+# investigate further.  We disable LANG_GO on mips64 as it requires
+# the internal libffi.
+case "$CTARGET_ARCH" in
+mips*)		LANG_GO=false ;;
+esac
+
+# Fortran uses libquadmath if toolchain has __float128
+# currently on x86, x86_64 and ia64
+_libquadmath=$LANG_FORTRAN
+case "$CTARGET_ARCH" in
+x86 | x86_64)	_libquadmath=$LANG_FORTRAN ;;
+*)		_libquadmath=false ;;
+esac
+
+# libatomic is a dependency for openvswitch
+$_libatomic && subpackages="$subpackages libatomic::$CTARGET_ARCH"
+$_libgcc && subpackages="$subpackages libgcc::$CTARGET_ARCH"
+$_libquadmath && subpackages="$subpackages libquadmath::$CTARGET_ARCH"
+if $_libgomp; then
+	depends="$depends libgomp=$_gccrel"
+	subpackages="$subpackages libgomp::$CTARGET_ARCH"
+fi
+
+case "$CARCH" in
+riscv64)
+LANG_ADA=false;;
+esac
+
+_languages=c
+if $LANG_CXX; then
+	_languages="$_languages,c++"
+fi
+if $LANG_D; then
+	subpackages="$subpackages libgphobos::$CTARGET_ARCH gcc-gdc$_target:gdc"
+	_languages="$_languages,d"
+	makedepends_build="$makedepends_build libucontext-dev gcc-gdc-bootstrap"
+fi
+if $LANG_OBJC; then
+	subpackages="$subpackages libobjc::$CTARGET_ARCH gcc-objc$_target:objc"
+	_languages="$_languages,objc"
+fi
+if $LANG_GO; then
+	subpackages="$subpackages libgo::$CTARGET_ARCH gcc-go$_target:go"
+	_languages="$_languages,go"
+fi
+if $LANG_FORTRAN; then
+	subpackages="$subpackages libgfortran::$CTARGET_ARCH gfortran$_target:gfortran"
+	_languages="$_languages,fortran"
+fi
+if $LANG_ADA; then
+	subpackages="$subpackages gcc-gnat$_target:gnat"
+	_languages="$_languages,ada"
+	if [ "$CBUILD" = "$CTARGET" ]; then
+		makedepends_build="$makedepends_build gcc-gnat-bootstrap"
+		subpackages="$subpackages libgnat-static:libgnatstatic:$CTARGET_ARCH libgnat::$CTARGET_ARCH"
+	else
+		subpackages="$subpackages libgnat::$CTARGET_ARCH"
+		makedepends_build="$makedepends_build gcc-gnat gcc-gnat$_cross"
+	fi
+fi
+if $LANG_JIT; then
+	subpackages="$subpackages libgccjit:jit libgccjit-dev:jitdev"
+fi
+makedepends="$makedepends_build $makedepends_host"
+
+# when using upstream releases, use this URI template
+# https://gcc.gnu.org/pub/gcc/releases/gcc-${_pkgbase:-$pkgver}/gcc-${_pkgbase:-$pkgver}.tar.xz
+#
+# right now, we are using a git snapshot. snapshots are taken from gcc.gnu.org/pub/gcc/snapshots.
+# However, since they are periodically deleted from the GCC mirrors the utilized snapshots are
+# mirrored on dev.alpinelinux.org. Please ensure that the snapshot Git commit (as stated in the
+# README) matches the base commit on the version-specific branch in the Git repository below.
+#
+# PLEASE submit all patches to gcc to https://gitlab.alpinelinux.org/kaniini/alpine-gcc-patches,
+# so that they can be properly tracked and easily rebased if needed.
+source="https://dev.alpinelinux.org/archive/gcc/${_pkgbase%%.*}-${_pkgsnap}/gcc-${_pkgbase%%.*}-${_pkgsnap}.tar.xz
+	0001-posix_memalign.patch
+	0002-gcc-poison-system-directories.patch
+	0003-specs-turn-on-Wl-z-now-by-default.patch
+	0004-Turn-on-D_FORTIFY_SOURCE-2-by-default-for-C-C-ObjC-O.patch
+	0005-On-linux-targets-pass-as-needed-by-default-to-the-li.patch
+	0006-Enable-Wformat-and-Wformat-security-by-default.patch
+	0007-Enable-Wtrampolines-by-default.patch
+	0008-Disable-ssp-on-nostdlib-nodefaultlibs-and-ffreestand.patch
+	0009-Ensure-that-msgfmt-doesn-t-encounter-problems-during.patch
+	0010-Don-t-declare-asprintf-if-defined-as-a-macro.patch
+	0011-libiberty-copy-PIC-objects-during-build-process.patch
+	0012-libitm-disable-FORTIFY.patch
+	0013-libgcc_s.patch
+	0014-nopie.patch
+	0015-dlang-use-libucontext-on-mips64.patch
+	0016-ada-fix-shared-linking.patch
+	0017-build-fix-CXXFLAGS_FOR_BUILD-passing.patch
+	0018-add-fortify-headers-paths.patch
+	0019-Alpine-musl-package-provides-libssp_nonshared.a.-We-.patch
+	0020-DP-Use-push-state-pop-state-for-gold-as-well-when-li.patch
+	0021-mips64-disable-multilib-support.patch
+	0022-aarch64-disable-multilib-support.patch
+	0023-s390x-disable-multilib-support.patch
+	0024-ppc64-le-disable-multilib-support.patch
+	0025-x86_64-disable-multilib-support.patch
+	0026-riscv-disable-multilib-support.patch
+	0027-always-build-libgcc_eh.a.patch
+	0028-ada-libgnarl-compatibility-for-musl.patch
+	0029-ada-musl-support-fixes.patch
+	0033-gcc-go-link-to-libucontext.patch
+	0034-Use-generic-errstr.go-implementation-on-musl.patch
+	0035-configure-Add-enable-autolink-libatomic-use-in-LINK_.patch
+	0036-configure-fix-detection-of-atomic-builtins-in-libato.patch
+	0037-libgo-Recognize-off64_t-and-loff_t-definitions-of-mu.patch
+	0039-gcc-go-Use-int64-type-as-offset-argument-for-mmap.patch
+	0041-go-gospec-forcibly-disable-fsplit-stack-support.patch
+	0042-gcc-go-fix-build-error-with-SYS_SECCOMP.patch
+	0043-libstdc-do-not-throw-exceptions-for-non-C-locales-on.patch
+	0044-gdc-unconditionally-link-libgphobos-against-libucont.patch
+	0045-druntime-link-against-libucontext-on-all-platforms.patch
+	0049-libgo-adjust-name-of-union-in-sigevent-struct.patch
+	0050-libphobos-don-t-define-__mode_t-twice-on-musl-target.patch
+	0051-libgo-Explicitly-define-SYS_timer_settime-for-32-bit.patch
+	0052-libgnat-time_t-is-always-64-bit-on-musl-libc.patch
+	0053-libgo-make-match.sh-POSIX-shell-compatible.patch
+	"
+
+# we build out-of-tree
+_gccdir="$srcdir"/gcc-${_pkgbase%%.*}-${_pkgsnap}
+_gcclibdir="/usr/lib/gcc/$CTARGET/${_pkgbase:-$pkgver}"
+_gcclibexec="/usr/libexec/gcc/$CTARGET/${_pkgbase:-$pkgver}"
+
+prepare() {
+	cd "$_gccdir"
+
+	_err=
+	for i in $source; do
+		case "$i" in
+		*.patch)
+			msg "Applying $i"
+			patch -p1 -i "$srcdir"/$i || _err="$_err $i"
+			;;
+		esac
+	done
+
+	if [ -n "$_err" ]; then
+		error "The following patches failed:"
+		for i in $_err; do
+			echo "  $i"
+		done
+		return 1
+	fi
+
+	echo ${_pkgbase:-$pkgver} > gcc/BASE-VER
+}
+
+build() {
+	local _arch_configure=
+	local _libc_configure=
+	local _bootstrap_configure=
+	local _symvers=
+	local _jit_configure=
+
+	cd "$_gccdir"
+
+	case "$CTARGET" in
+	aarch64-*-*-*)		_arch_configure="--with-arch=armv8-a --with-abi=lp64";;
+	armv5-*-*-*eabi)	_arch_configure="--with-arch=armv5te --with-tune=arm926ej-s --with-float=soft --with-abi=aapcs-linux";;
+	armv6-*-*-*eabihf)	_arch_configure="--with-arch=armv6zk --with-tune=arm1176jzf-s --with-fpu=vfp --with-float=hard --with-abi=aapcs-linux";;
+	armv7-*-*-*eabihf)	_arch_configure="--with-arch=armv7-a --with-tune=generic-armv7-a --with-fpu=vfpv3-d16 --with-float=hard --with-abi=aapcs-linux --with-mode=thumb";;
+	mips-*-*-*)		_arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";;
+	mips64-*-*-*)		_arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";;
+	mips64el-*-*-*)		_arch_configure="--with-arch=mips3 --with-tune=mips64 --with-mips-plt --with-float=soft --with-abi=64";;
+	mipsel-*-*-*)		_arch_configure="--with-arch=mips32 --with-mips-plt --with-float=soft --with-abi=32";;
+	powerpc-*-*-*)		_arch_configure="--enable-secureplt --enable-decimal-float=no";;
+	powerpc64*-*-*-*)	_arch_configure="--with-abi=elfv2 --enable-secureplt --enable-decimal-float=no --enable-targets=powerpcle-linux";;
+	i486-*-*-*)		_arch_configure="--with-arch=i486 --with-tune=generic --enable-cld";;
+	i586-*-*-*)		_arch_configure="--with-arch=i586 --with-tune=generic --enable-cld";;
+	s390x-*-*-*)		_arch_configure="--with-arch=z196 --with-tune=zEC12 --with-zarch --with-long-double-128 --enable-decimal-float";;
+	riscv64-*-*-*)		_arch_configure="--with-arch=rv64gc --with-abi=lp64d --enable-autolink-libatomic";;
+	esac
+
+	case "$CTARGET_ARCH" in
+	mips*)	_hash_style_configure="--with-linker-hash-style=sysv" ;;
+	*)	_hash_style_configure="--with-linker-hash-style=gnu" ;;
+	esac
+
+	case "$CTARGET_LIBC" in
+	musl)
+		# musl does not support libsanitizer
+		# alpine musl provides libssp_nonshared.a, so we don't need libssp either
+		_libc_configure="--disable-libssp --disable-libsanitizer"
+		_symvers="--disable-symvers"
+		export libat_cv_have_ifunc=no
+		;;
+	esac
+
+
+	case "$BOOTSTRAP" in
+	nolibc)	_bootstrap_configure="--with-newlib --disable-shared --enable-threads=no" ;;
+	*)	_bootstrap_configure="--enable-shared --enable-threads --enable-tls" ;;
+	esac
+
+	$_libgomp	|| _bootstrap_configure="$_bootstrap_configure --disable-libgomp"
+	$_libatomic	|| _bootstrap_configure="$_bootstrap_configure --disable-libatomic"
+	$_libitm	|| _bootstrap_configure="$_bootstrap_configure --disable-libitm"
+	$_libquadmath	|| _arch_configure="$_arch_configure --disable-libquadmath"
+
+	msg "Building the following:"
+	echo ""
+	echo "  CBUILD=$CBUILD"
+	echo "  CHOST=$CHOST"
+	echo "  CTARGET=$CTARGET"
+	echo "  CTARGET_ARCH=$CTARGET_ARCH"
+	echo "  CTARGET_LIBC=$CTARGET_LIBC"
+	echo "  languages=$_languages"
+	echo "  arch_configure=$_arch_configure"
+	echo "  libc_configure=$_libc_configure"
+	echo "  cross_configure=$_cross_configure"
+	echo "  bootstrap_configure=$_bootstrap_configure"
+	echo "  hash_style_configure=$_hash_style_configure"
+	echo ""
+
+	export CFLAGS="$CFLAGS -O2"
+	export CXXFLAGS="$CXXFLAGS -O2"
+	export CPPFLAGS="$CPPFLAGS -O2"
+
+	local version="Alpine $pkgver-r$pkgrel"
+	local gccconfiguration="
+		--prefix=/usr
+		--mandir=/usr/share/man
+		--infodir=/usr/share/info
+		--build=${CBUILD}
+		--host=${CHOST}
+		--target=${CTARGET}
+		--enable-checking=release
+		--disable-fixed-point
+		--disable-libstdcxx-pch
+		--disable-multilib
+		--disable-nls
+		--disable-werror
+		$_symvers
+		--enable-__cxa_atexit
+		--enable-default-pie
+		--enable-default-ssp
+		--enable-languages=$_languages
+		$_arch_configure
+		$_libc_configure
+		$_cross_configure
+		$_bootstrap_configure
+		--with-bugurl=https://gitlab.alpinelinux.org/alpine/aports/-/issues
+		--with-system-zlib
+		$_hash_style_configure
+		"
+
+	mkdir -p "$_builddir"
+	cd "$_builddir"
+	"$_gccdir"/configure $gccconfiguration \
+		--with-pkgversion="$version"
+
+	msg "building gcc"
+	make
+
+	# we build gccjit separate to not build all of gcc with --enable-host-shared
+	# as doing so slows it down a few %, so for some quick if's here we gain
+	# free performance
+	if $LANG_JIT; then
+		mkdir -p "$_builddir"/libgccjit-build
+		cd "$_builddir"/libgccjit-build
+		"$_gccdir"/configure $gccconfiguration \
+			--disable-bootstrap \
+			--enable-host-shared \
+			--enable-languages=jit \
+			--with-pkgversion="$version"
+
+		msg "building libgccjit"
+		make all-gcc
+	fi
+}
+
+package() {
+	cd "$_builddir"
+	make DESTDIR="$pkgdir" install
+
+	ln -s gcc "$pkgdir"/usr/bin/cc
+
+	if $LANG_JIT; then
+		make -C "$_builddir"/libgccjit-build/gcc DESTDIR="$pkgdir" jit.install-common
+	fi
+
+	# we dont support gcj -static
+	# and saving 35MB is not bad.
+	find "$pkgdir" \( -name libgtkpeer.a \
+		-o -name libgjsmalsa.a \
+		-o -name libgij.a \) \
+		-delete
+
+	# strip debug info from some static libs
+	find "$pkgdir" \( -name libgfortran.a -o -name libobjc.a -o -name libgomp.a \
+		-o -name libgphobos.a -o -name libgdruntime.a \
+		-o -name libgcc.a -o -name libgcov.a -o -name libquadmath.a \
+		-o -name libitm.a -o -name libgo.a -o -name libcaf\*.a \
+		-o -name libatomic.a -o -name libasan.a -o -name libtsan.a \) \
+		-a -type f \
+		-exec ${STRIP_FOR_TARGET} -g {} +
+
+	if $_libgomp; then
+		mv "$pkgdir"/usr/lib/libgomp.spec "$pkgdir"/$_gcclibdir
+	fi
+	if $_libitm; then
+		mv "$pkgdir"/usr/lib/libitm.spec "$pkgdir"/$_gcclibdir
+	fi
+
+	# remove ffi
+	rm -f "$pkgdir"/usr/lib/libffi* "$pkgdir"/usr/share/man/man3/ffi*
+	find "$pkgdir" -name 'ffi*.h' -delete
+
+	local gdblib=${_target:+$CTARGET/}lib
+	if [ -d "$pkgdir"/usr/$gdblib/ ]; then
+		for i in $(find "$pkgdir"/usr/$gdblib/ -type f -maxdepth 1 -name "*-gdb.py"); do
+			mkdir -p "$pkgdir"/usr/share/gdb/python/auto-load/usr/$gdblib
+			mv "$i" "$pkgdir"/usr/share/gdb/python/auto-load/usr/$gdblib/
+		done
+	fi
+
+	# move ada runtime libs
+	if $LANG_ADA; then
+		for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.so"); do
+			mv "$i" "$pkgdir"/usr/lib/
+			ln -s ../../../../${i##*/} $i
+		done
+		if [ "$CHOST" = "$CTARGET" ]; then
+			for i in $(find "$pkgdir"/$_gcclibdir/adalib/ -type f -maxdepth 1 -name "libgna*.a"); do
+				mv "$i" "$pkgdir"/usr/lib/
+				ln -s ../../../../${i##*/} $i
+			done
+		fi
+	fi
+
+	if [ "$CHOST" != "$CTARGET" ]; then
+		# cross-gcc: remove any files that would conflict with the
+		# native gcc package
+		rm -rf "$pkgdir"/usr/bin/cc "$pkgdir"/usr/include "${pkgdir:?}"/usr/share
+		# libcc1 does not depend on target, don't ship it
+		rm -rf "$pkgdir"/usr/lib/libcc1.so*
+
+		# fixup gcc library symlinks to be linker scripts so
+		# linker finds the libs from relocated sysroot
+		for so in "$pkgdir"/usr/"$CTARGET"/lib/*.so; do
+			if [ -h "$so" ]; then
+				local _real=$(basename "$(readlink "$so")")
+				rm -f "$so"
+				echo "GROUP ($_real)" > "$so"
+			fi
+		done
+	else
+		# add c89/c99 wrapper scripts
+		cat >"$pkgdir"/usr/bin/c89 <<'EOF'
+#!/bin/sh
+_flavor="-std=c89"
+for opt; do
+	case "$opt" in
+	-ansi|-std=c89|-std=iso9899:1990) _flavor="";;
+	-std=*) echo "$(basename $0) called with non ANSI/ISO C option $opt" >&2
+		exit 1;;
+	esac
+done
+exec gcc $_flavor ${1+"$@"}
+EOF
+		cat >"$pkgdir"/usr/bin/c99 <<'EOF'
+#!/bin/sh
+_flavor="-std=c99"
+for opt; do
+	case "$opt" in
+	-std=c99|-std=iso9899:1999) _flavor="";;
+	-std=*) echo "$(basename $0) called with non ISO C99 option $opt" >&2
+		exit 1;;
+	esac
+done
+exec gcc $_flavor ${1+"$@"}
+EOF
+		chmod 755 "$pkgdir"/usr/bin/c?9
+
+		# install lto plugin so regular binutils may use it
+		mkdir -p "$pkgdir"/usr/lib/bfd-plugins
+		ln -s /$_gcclibexec/liblto_plugin.so "$pkgdir/usr/lib/bfd-plugins/"
+	fi
+}
+
+libatomic() {
+	pkgdesc="GCC Atomic library"
+	depends=
+	replaces="gcc"
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libatomic.so.* "$subpkgdir"/usr/lib/
+}
+
+libcxx() {
+	pkgdesc="GNU C++ standard runtime library"
+	depends=
+
+	if [ "$CHOST" = "$CTARGET" ]; then
+		# verify that we are using clock_gettime rather than doing direct syscalls
+		# so we dont break 32 bit arches due to time64.
+		nm -D "$pkgdir"/usr/lib/libstdc++.so.* | grep clock_gettime
+	fi
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libstdc++.so.* "$subpkgdir"/usr/lib/
+}
+
+libcxx_dev() {
+	pkgdesc="GNU C++ standard runtime library (development files)"
+	depends=
+	replaces="g++"
+
+	amove usr/${_target:+$CTARGET/}lib/libstdc++.a \
+		usr/${_target:+$CTARGET/}lib/libstdc++.so \
+		usr/${_target:+$CTARGET/}lib/libstdc++fs.a \
+		usr/${_target:+$CTARGET/}lib/libsupc++.a \
+		usr/${_target:+$CTARGET/}include/c++
+}
+
+gpp() {
+	pkgdesc="GNU C++ standard library and compiler"
+	depends="libstdc++=$_gccrel libstdc++-dev$_target=$_gccrel gcc$_target=$_gccrel libc-dev"
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/usr/bin \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}include \
+		"$subpkgdir"/usr/${_target:+$CTARGET/}lib \
+
+	mv "$pkgdir/$_gcclibexec/cc1plus" "$subpkgdir/$_gcclibexec/"
+
+	mv "$pkgdir"/usr/bin/*++ "$subpkgdir"/usr/bin/
+}
+
+jit() {
+	pkgdesc="GCC JIT Library"
+	depends=
+	amove usr/lib/libgccjit.so*
+}
+
+jitdev() {
+	pkgdesc="GCC JIT Library (development files)"
+	depends="libgccjit"
+	amove usr/include/libgccjit*.h
+}
+
+libobjc() {
+	pkgdesc="GNU Objective-C runtime"
+	replaces="objc"
+	depends=
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libobjc.so.* "$subpkgdir"/usr/lib/
+}
+
+objc() {
+	pkgdesc="GNU Objective-C"
+	replaces="gcc"
+	depends="libc-dev gcc=$_gccrel libobjc=$_gccrel"
+
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include \
+		"$subpkgdir"/usr/lib
+	mv "$pkgdir/$_gcclibexec/cc1obj" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/objc "$subpkgdir"/$_gcclibdir/include/
+	mv "$pkgdir"/usr/lib/libobjc.so "$pkgdir"/usr/lib/libobjc.a \
+		"$subpkgdir"/usr/lib/
+}
+
+libgcc() {
+	pkgdesc="GNU C compiler runtime libraries"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgcc_s.so.* "$subpkgdir"/usr/lib/
+}
+
+libgomp() {
+	pkgdesc="GCC shared-memory parallel programming API library"
+	depends=
+	replaces="gcc"
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/${_target:+$CTARGET/}lib/libgomp.so.* "$subpkgdir"/usr/lib/
+}
+
+libgphobos() {
+	pkgdesc="D programming language standard library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgdruntime.so.* "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgphobos.so.*  "$subpkgdir"/usr/lib/
+}
+
+gdc() {
+	pkgdesc="GCC-based D language compiler"
+	depends="gcc=$_gccrel libgphobos=$_gccrel musl-dev"
+	depends="$depends libucontext-dev"
+	provides="gcc-gdc-bootstrap=$_gccrel"
+
+	mkdir -p "$subpkgdir/$_gcclibexec" \
+		"$subpkgdir"/$_gcclibdir/include/d/ \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	# Copy: The installed '.d' files, the static lib, the binary itself
+	# The shared libs are part of 'libgphobos' so one can run program
+	# without installing the compiler
+	mv "$pkgdir/$_gcclibexec/d21" "$subpkgdir/$_gcclibexec/"
+	mv "$pkgdir"/$_gcclibdir/include/d/* "$subpkgdir"/$_gcclibdir/include/d/
+	mv "$pkgdir"/usr/lib/libgdruntime.a "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgdruntime.so "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgphobos.a "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgphobos.so "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/lib/libgphobos.spec "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/bin/$CTARGET-gdc "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/bin/gdc "$subpkgdir"/usr/bin/
+}
+
+
+libgo() {
+	pkgdesc="Go runtime library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgo.so.* "$subpkgdir"/usr/lib/
+}
+
+go() {
+	pkgdesc="GCC Go frontend (intended for bootstrapping community/go)"
+	depends="gcc=$_gccrel libgo=$_gccrel !go"
+	install="$pkgname-go.post-install"
+
+	# See https://lists.alpinelinux.org/~alpine/devel/%3C33KG0XO61I4IL.2Z7RTAZ5J3SY6%408pit.net%3E
+	provides="go-bootstrap"
+	provider_priority=1 # lowest, see community/go
+
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/lib/go "$subpkgdir"/usr/lib/
+	mv "$pkgdir"/usr/bin/*gccgo "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/bin/*go "$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gofmt "$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/go1 "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/cgo "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/buildid "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/test2json "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibexec/vet "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/usr/lib/libgo.a \
+		"$pkgdir"/usr/lib/libgo.so \
+		"$pkgdir"/usr/lib/libgobegin.a \
+		"$pkgdir"/usr/lib/libgolibbegin.a \
+		"$subpkgdir"/usr/lib/
+}
+
+libgfortran() {
+	pkgdesc="Fortran runtime library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgfortran.so.* "$subpkgdir"/usr/lib/
+}
+
+libquadmath() {
+	replaces="gcc"
+	pkgdesc="128-bit math library for GCC"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libquadmath.so.* "$subpkgdir"/usr/lib/
+}
+
+gfortran() {
+	pkgdesc="GNU Fortran Compiler"
+	depends="gcc=$_gccrel libgfortran=$_gccrel"
+	$_libquadmath && depends="$depends libquadmath=$_gccrel"
+	replaces="gcc"
+
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/lib \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/usr/bin/*gfortran "$subpkgdir"/usr/bin/
+	mv "$pkgdir"/usr/lib/libgfortran.a \
+		"$pkgdir"/usr/lib/libgfortran.so \
+		"$subpkgdir"/usr/lib/
+	if $_libquadmath; then
+		mv "$pkgdir"/usr/lib/libquadmath.a \
+			"$pkgdir"/usr/lib/libquadmath.so \
+			"$subpkgdir"/usr/lib/
+	fi
+	mv "$pkgdir"/$_gcclibdir/finclude "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/$_gcclibexec/f951 "$subpkgdir"/$_gcclibexec
+	mv "$pkgdir"/usr/lib/libgfortran.spec "$subpkgdir"/$_gcclibdir
+}
+
+libgnat() {
+	pkgdesc="GNU Ada runtime shared libraries"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.so "$subpkgdir"/usr/lib/
+}
+
+libgnatstatic() {
+	pkgdesc="GNU Ada static libraries"
+	depends=
+
+	mkdir -p "$subpkgdir"/usr/lib
+	mv "$pkgdir"/usr/lib/libgna*.a "$subpkgdir"/usr/lib/
+}
+
+gnat() {
+	pkgdesc="Ada support for GCC"
+	depends="gcc=$_gccrel"
+	provides="$pkgname-gnat-bootstrap=$_gccrel"
+	[ "$CHOST" = "$CTARGET" ] && depends="$depends libgnat=$_gccrel"
+
+	mkdir -p "$subpkgdir"/$_gcclibexec \
+		"$subpkgdir"/$_gcclibdir \
+		"$subpkgdir"/usr/bin
+	mv "$pkgdir"/$_gcclibexec/*gnat* "$subpkgdir"/$_gcclibexec/
+	mv "$pkgdir"/$_gcclibdir/*ada* "$subpkgdir"/$_gcclibdir/
+	mv "$pkgdir"/usr/bin/*gnat* "$subpkgdir"/usr/bin/
+}
+
+sha512sums="
+ba4d9e73d108088da26fbefe18d9b245b76771ffe752c2b4b31bdf38a2d0b638fbc115c377526c27311d4d7ffd4e0d236a5af5016bd364ccaa11a4989d1401e8  gcc-12-20220924.tar.xz
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+a54e45bff4484a35d3826435a414d909281453f5605f4081cf3be1f15336cceed93a1d8a54e92e2fa97188623e3030ca1323d7749141e228a7db73795230d86a  0004-Turn-on-D_FORTIFY_SOURCE-2-by-default-for-C-C-ObjC-O.patch
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+79dac82249fb573ec477e1451a33883302eb63a5110853faed117f5021221f2153e2ec845dd5a0043b1bf9f0e5736ef0c89743ff2d771774a281c8b24542803a  0011-libiberty-copy-PIC-objects-during-build-process.patch
+b035f85c1703b45d15c1d1ffe7d23400e01625e5d403504911cc92f740b02586447de2a9d66a9f80f12b9c227bc193e2a43942c8af2bdb42cdeff8272bbe6068  0012-libitm-disable-FORTIFY.patch
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+6c3ce0ccd68b19e2c76172d8f24b0747ee0af2b8de7af692f2f699848267d7fc42fec8e5c303102fe05be7e934b56f21eea17ce47c8aca20570590830d88e9b0  0016-ada-fix-shared-linking.patch
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+a14c5f98ade5af8cd6e3a0244752674d9c4f6dadb4260f98f1949bff51ac1211a3f8319e0f933f776e98998d2c7221004f92413f97ccc2e966f8462ed6d33597  0020-DP-Use-push-state-pop-state-for-gold-as-well-when-li.patch
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+95917fcb60dbc0a8134db9beb583f3c9ea61128499c214f594c434ec8246641ec41e245ce2d1d9b85ffd40ea0e5764f7a33c5522b2547145814245ac0fa25025  0025-x86_64-disable-multilib-support.patch
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+f060687adcd5297124e4000f1ba1e3fd5d7d124da04d948cbd0d4a6c69a90a2b29a4a0dbbe13a83ab6950724f434de012b681bdbcdf53c0100b40fe3d00f2f2f  0028-ada-libgnarl-compatibility-for-musl.patch
+5160bae68e20a1966c1f6d655ee98af759e9b9ee842718ae6007d467b418e1cf3b307528a0841477b5259671ce868521b06c0f2e947b7b8f3a398c53dd978252  0029-ada-musl-support-fixes.patch
+3c04b26554a78096296ca9542c77a91219bd26044dd2cb2006db4c1944889a97c215900b3828ba7e8c675162406db543605a815bdfbd915bf810663b1b253bdd  0033-gcc-go-link-to-libucontext.patch
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+"
--- a/cross/gcc-riscv64/gcc-go.post-install
+++ b/cross/gcc-riscv64/gcc-go.post-install
@ -0,0 +1,8 @@
+#!/bin/sh
+
+cat 1>&2 <<EOF
+*
+* gcc-go is used in Alpine for bootstrapping Go.
+* It is currently discouraged to use it for other purposes.
+*
+EOF
--- a/cross/musl-riscv64/APKBUILD
+++ b/cross/musl-riscv64/APKBUILD
@ -0,0 +1,62 @@
+# Automatically generated aport, do not edit!
+# Generator: pmbootstrap aportgen musl-riscv64
+
+# Stub for apkbuild-lint
+if [ -z "$(type -t arch_to_hostspec)" ]; then
+	arch_to_hostspec() { :; }
+fi
+
+pkgname=musl-riscv64
+pkgver=1.2.3
+pkgrel=1
+arch="x86_64"
+subpackages="musl-dev-riscv64:package_dev"
+
+_arch="riscv64"
+_mirror="http://dl-4.alpinelinux.org/alpine/"
+
+url="https://musl-libc.org"
+license="MIT"
+options="!check !strip"
+pkgdesc="the musl library (lib c) implementation for $_arch"
+
+_target="$(arch_to_hostspec $_arch)"
+
+source="
+	musl-$pkgver-r$pkgrel-$_arch-edge.apk::$_mirror/edge/main/$_arch/musl-$pkgver-r$pkgrel.apk
+	musl-dev-$pkgver-r$pkgrel-$_arch-edge.apk::$_mirror/edge/main/$_arch/musl-dev-$pkgver-r$pkgrel.apk
+"
+
+package() {
+	mkdir -p "$pkgdir/usr/$_target"
+	cd "$pkgdir/usr/$_target"
+	# Use 'busybox tar' to avoid 'tar: Child returned status 141'
+	# on some machines (builds.sr.ht, gitlab-ci). See pmaports#26.
+	busybox tar -xf $srcdir/musl-$pkgver-r$pkgrel-$_arch-edge.apk
+	rm .PKGINFO .SIGN.*
+}
+package_dev() {
+	mkdir -p "$subpkgdir/usr/$_target"
+	cd "$subpkgdir/usr/$_target"
+	# Use 'busybox tar' to avoid 'tar: Child returned status 141'
+	# on some machines (builds.sr.ht, gitlab-ci). See pmaports#26.
+	busybox tar -xf $srcdir/musl-dev-$pkgver-r$pkgrel-$_arch-edge.apk
+	rm .PKGINFO .SIGN.*
+
+	# symlink everything from /usr/$_target/usr/*
+	# to /usr/$_target/* so the cross-compiler gcc does not fail
+	# to build.
+	for _dir in include lib; do
+		mkdir -p "$subpkgdir/usr/$_target/$_dir"
+		cd "$subpkgdir/usr/$_target/usr/$_dir"
+		for i in *; do
+			cd "$subpkgdir/usr/$_target/$_dir"
+			ln -s /usr/$_target/usr/$_dir/$i $i
+		done
+	done
+}
+
+sha512sums="
+f649c393be92169ef6b5375ae2554917729af869f88780186a67550e80f8528d698e3038c213a02530494163a6da60da9420685b6db1ce68ce0c35451a564935  musl-1.2.3-r1-riscv64-edge.apk
+05b7a7eb891f7293a2cc12093c456efc8a6bb0ee7b27e506f41ed1b5d75563ba313271866e6538a1a522ff751b901745394f2b80965840ca617584b2cacd3926  musl-dev-1.2.3-r1-riscv64-edge.apk
+"