pmaports/cross/gcc-armv7/002_all_default-relro.patch
Grant Miller 74941fe0d4
Add cross/{binutils,busybox-static,gcc,gcc6,musl}-armv7 (!110)
Generated with:
$ pmbootstrap aportgen binutils-armv7 busybox-static-armv7 gcc-armv7 \
  gcc7-armv7 musl-armv7

[skip ci]
2018-12-22 23:25:26 +01:00

33 lines
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\