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