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| author | Jakub Jelinek <jakub@redhat.com> | 2022-12-19 11:14:55 +0100 |
|---|---|---|
| committer | Jakub Jelinek <jakub@redhat.com> | 2022-12-19 11:14:55 +0100 |
| commit | f39b7a4d37f46bb7e627d67f4a1ae9114f2175d1 (patch) | |
| tree | d1732db3d2c0c583042c4285e0b7a74bff469b5c /gcc | |
| parent | 61f9fe404933552a1858414f8181936d63a88ca2 (diff) | |
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hwasan: Add libhwasan_preinit.o
I've noticed an inconsistency with the other sanitizers.
For -fsanitize={address,thread,leak} we link into binaries
lib*san_preinit.o such that the -lasan, -ltsan or -llsan libraries
are initialized as early as possible through .preinit_array.
The hwasan library has the same thing, but we strangely compiled
it into the library (where it apparently didn't do anything,
.preinit_array doesn't seem to be created for shared libraries),
rather than installing it like in the other 3 cases.
The following patch handles it for hwasan similarly to asan, tsan and lsan.
I don't have any hw with hwasan support, so I've just checked it
builds and installs as expected and that
gcc -fsanitize=hwaddress -o a a.c -mlam=u57
on trivial main results in .preinit_array section in the binary.
2022-12-19 Jakub Jelinek <jakub@redhat.com>
* config/gnu-user.h (LIBHWASAN_EARLY_SPEC): Add libhwasan_preinit.o
to link spec if not -shared.
* hwasan/Makefile.am (nodist_toolexeclib_HEADERS): Set to
libhwasan_preinit.o.
(hwasan_files): Remove hwasan_preinit.cpp.
(libhwasan_preinit.o): Copy from hwasan_preinit.o.
* hwasan/Makefile.in: Regenerated.
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/config/gnu-user.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h index 857c0e0..edb3aa6 100644 --- a/gcc/config/gnu-user.h +++ b/gcc/config/gnu-user.h @@ -138,7 +138,8 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see LD_STATIC_OPTION " --whole-archive -lasan --no-whole-archive " \ LD_DYNAMIC_OPTION "}}%{!static-libasan:-lasan}" #undef LIBHWASAN_EARLY_SPEC -#define LIBHWASAN_EARLY_SPEC "%{static-libhwasan:%{!shared:" \ +#define LIBHWASAN_EARLY_SPEC "%{!shared:libhwasan_preinit%O%s} " \ + "%{static-libhwasan:%{!shared:" \ LD_STATIC_OPTION " --whole-archive -lhwasan --no-whole-archive " \ LD_DYNAMIC_OPTION "}}%{!static-libhwasan:-lhwasan}" #undef LIBTSAN_EARLY_SPEC |