pmaports/gcc-aarch64/002_all_default-relro.patch
Oliver Smith 925b78ae16 Official support for aarch64 (#84)
* Fix hardcoded `armhf` in pmb/aportgen/binutils.py
* Generate aports: `binutils-aarch64`, `musl-aarch64`, `gcc-aarch64`
* Distccd: Remember the cross-compiler architecture (currently armhf
  or aarch64), that the current distccd is running as, and restart
  distccd with the correct architecture, in case a different arch
  is needed than what it is currently running as. (Depending on the
  cross-compiler arch, the PATH variable gets adjusted before
  starting distccd)
* Testcases: add aport generation for aarch64, add cross-compiling
  to aarch64
* pmb/parse/arch.py: Add aarch64 to the mapping
2017-06-14 19:10:21 +02:00

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1.2 KiB
Diff

# Turn on -Wl,-z,relro,-z,now by default.
---
gcc/doc/invoke.texi | 3 +++
gcc/gcc.c | 1 +
2 files changed, 4 insertions(+), 0 deletions(-)
Index: b/gcc/doc/invoke.texi
===================================================================
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -11424,6 +11424,9 @@ For example, @option{-Wl,-Map,output.map
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,relro,now} is used. To disable, use @option{-Wl,-z,norelro}.
+
@item -u @var{symbol}
@opindex u
Pretend the symbol @var{symbol} is undefined, to force linking of
Index: b/gcc/gcc.c
===================================================================
--- a/gcc/gcc.c
+++ b/gcc/gcc.c
@@ -890,6 +890,7 @@ proper position among the other output f
"%{flto|flto=*:%<fcompare-debug*} \
%{flto} %{fno-lto} %{flto=*} %l " LINK_PIE_SPEC \
"%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
+ "-z relro -z now " \
"%X %{o*} %{e*} %{N} %{n} %{r}\
%{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} " VTABLE_VERIFICATION_SPEC " \
%{static:} %{L*} %(mfwrap) %(link_libgcc) " SANITIZER_EARLY_SPEC " %o\