737cff798a
Based on the last version from Alpine, but installed to /usr/gcc6 and with pretty much everything disabled except for the C compiler. We can probably throw out a lot of patches, and make the APKBUILD much smaller. But let's focus on making it possible to compile old kernels again first. There's still a lot to do for that, see #103.
75 lines
2 KiB
Diff
75 lines
2 KiB
Diff
From b6015aca9c9cc83739fd0ed637a835119b2c4e34 Mon Sep 17 00:00:00 2001
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From: Szabolcs Nagy <nsz@port70.net>
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Date: Sat, 7 Nov 2015 02:08:05 +0000
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Subject: [PATCH 5/6] nopie
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---
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gcc/configure | 27 +++++++++++++++++++++++++++
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gcc/configure.ac | 13 +++++++++++++
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2 files changed, 40 insertions(+)
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diff --git a/gcc/configure b/gcc/configure
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index 1c6e340..7e8b5d6 100755
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--- a/gcc/configure
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+++ b/gcc/configure
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@@ -29390,6 +29390,33 @@ fi
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$as_echo "$gcc_cv_no_pie" >&6; }
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if test "$gcc_cv_no_pie" = "yes"; then
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NO_PIE_FLAG="-no-pie"
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+else
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+ # Check if -nopie works.
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+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -nopie option" >&5
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+$as_echo_n "checking for -nopie option... " >&6; }
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+if test "${gcc_cv_nopie+set}" = set; then :
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+ $as_echo_n "(cached) " >&6
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+else
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+ saved_LDFLAGS="$LDFLAGS"
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+ LDFLAGS="$LDFLAGS -nopie"
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+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
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+/* end confdefs.h. */
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+int main(void) {return 0;}
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+_ACEOF
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+if ac_fn_cxx_try_link "$LINENO"; then :
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+ gcc_cv_nopie=yes
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+else
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+ gcc_cv_nopie=no
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+fi
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+rm -f core conftest.err conftest.$ac_objext \
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+ conftest$ac_exeext conftest.$ac_ext
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+ LDFLAGS="$saved_LDFLAGS"
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+fi
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+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $gcc_cv_nopie" >&5
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+$as_echo "$gcc_cv_nopie" >&6; }
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+ if test "$gcc_cv_nopie" = "yes"; then
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+ NO_PIE_FLAG="-nopie"
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+ fi
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fi
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diff --git a/gcc/configure.ac b/gcc/configure.ac
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index 6c1dcd9..0ca7647 100644
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--- a/gcc/configure.ac
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+++ b/gcc/configure.ac
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@@ -6098,6 +6098,19 @@ AC_CACHE_CHECK([for -no-pie option],
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LDFLAGS="$saved_LDFLAGS"])
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if test "$gcc_cv_no_pie" = "yes"; then
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NO_PIE_FLAG="-no-pie"
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+else
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+ # Check if -nopie works.
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+ AC_CACHE_CHECK([for -nopie option],
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+ [gcc_cv_nopie],
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+ [saved_LDFLAGS="$LDFLAGS"
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+ LDFLAGS="$LDFLAGS -nopie"
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+ AC_LINK_IFELSE([int main(void) {return 0;}],
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+ [gcc_cv_nopie=yes],
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+ [gcc_cv_nopie=no])
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+ LDFLAGS="$saved_LDFLAGS"])
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+ if test "$gcc_cv_nopie" = "yes"; then
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+ NO_PIE_FLAG="-nopie"
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+ fi
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fi
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AC_SUBST([NO_PIE_FLAG])
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--
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2.8.1
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