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[Bug libc/12123] SIGBUS on strstr_sse42 due to bad alignment


http://sourceware.org/bugzilla/show_bug.cgi?id=12123

--- Comment #10 from LluÃs <viriketo at gmail dot com> 2010-10-26 16:49:17 UTC ---
I've found that the _init section of glibc 2.12.1 libpthread.so.0 breaks the
stack alignment. See the objdump, and see how the 16-bit alignment comming at
_init is broken calling the functions there listed (push + call = 8 bytes
instead of 16).

Disassembly of section .init:

00004140 <_init>:
    4140:       55                      push   %ebp
    4141:       89 e5                   mov    %esp,%ebp
    4143:       e8 f8 05 00 00          call   4740
<__pthread_initialize_minimal>
    4148:       e8 43 05 00 00          call   4690 <frame_dummy>
    414d:       e8 1e d6 00 00          call   11770 <__do_global_ctors_aux>
    4152:       5d                      pop    %ebp
    4153:       c3                      ret    


But I still don't know what writes that _init there.

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