http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46319
--- Comment #4 from H.J. Lu <hjl.tools at gmail dot com> 2010-11-05 23:27:51
UTC ---
-fwhopr=jobserver -fuse-linker-plugin -frandom-seed=1 miscompiled
selfassign.so. It generated:
[...@gnu-32 stage1-gcc]$ nm selfassign.so | grep plugin_init
00000000000009aa T plugin_init
[...@gnu-32 stage1-gcc]$
0000000000009aa <check_operator_eq>:
9aa: 90 nop
9ab: 90 nop
9ac: 90 nop
9ad: 90 nop
9ae: 90 nop
9af: 90 nop
Everything seems wrong. With gold as plugin linker, I got
[...@scel-amdbar2 gcc]$ nm selfassign.so | grep plugin_init
00000000000020ac T plugin_init
[...@scel-amdbar2 gcc]$
00000000000020ac <plugin_init>:
20ac: 41 57 push %r15
20ae: 41 56 push %r14
20b0: 41 55 push %r13
20b2: 41 54 push %r12
20b4: 55 push %rbp
20b5: 53 push %rbx
20b6: 48 83 ec 38 sub $0x38,%rsp
20ba: 48 89 f0 mov %rsi,%rax
20bd: 4c 8b 2f mov (%rdi),%r13
20c0: 44 8b 67 10 mov 0x10(%rdi),%r12d
20c4: 48 8b 6f 18 mov 0x18(%rdi),%rbp
20c8: 48 8d 35 11 1c 00 00 lea 0x1c11(%rip),%rsi # 3ce0
