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| author | Fangrui Song <maskray@google.com> | 2021-07-08 14:26:22 -0700 |
|---|---|---|
| committer | Fangrui Song <maskray@google.com> | 2021-07-08 14:26:22 -0700 |
| commit | 115d242456de158e698ffb0f9a5fee3118e9e825 (patch) | |
| tree | aa9d3aa72fb7c960e0f77fba1ae6f4c494a58312 /support/support_stack_alloc.c | |
| parent | bba4383c6b4db09c84c7a194b5e80978e6c44ee5 (diff) | |
| download | glibc-115d242456de158e698ffb0f9a5fee3118e9e825.tar.xz glibc-115d242456de158e698ffb0f9a5fee3118e9e825.zip | |
x86_64: Remove unneeded static PIE check for undefined weak diagnostic
https://sourceware.org/bugzilla/show_bug.cgi?id=21782 dropped an ld
diagnostic for R_X86_64_PC32 referencing an undefined weak symbol in
-pie links. Arguably keeping the diagnostic like other ports is more
correct, since statically resolving movl foo(%rip), %eax to the
link-time zero address produces a corrupted output.
It turns out that --enable-static-pie builds do not depend on the ld
behavior. GCC generates GOT indirection for weak declarations for
-fPIE/-fPIC, so what ld does with the PC-relative relocation doesn't
really matter.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'support/support_stack_alloc.c')
0 files changed, 0 insertions, 0 deletions