https://sourceware.org/bugzilla/show_bug.cgi?id=32722
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |INVALID
Status|NEW |RESOLVED
--- Comment #1 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Tom de Vries from comment #0)
> Consider the following test-case:
> ...
> $ cat test.s
> .file "test.c"
> .text
> .globl main
> .type main, @function
> main:
> .byte 0xc5
> .byte 0xfe
> .byte 0x6f
> .byte 0x0d
> .byte 0xff
> .byte 0xff
> .byte 0xff
> .byte 0xff
> .size main, .-main
> .ident "GCC: (SUSE Linux) 7.5.0"
> .section .note.GNU-stack,"",@progbits
> ...
>
> Compiled with:
> ...
> $ gcc test.s -c
> ...
>
> Objdump thinks the instruction is 7 bytes long:
> ...
> $ objdump -d test.o
> ...
> 0000000000000000 <main>:
> 0: c5 fe 6f 0d ff ff ff vmovdqu -0x1(%rip),%ymm1
> 7: ff
^^^ This is the 8th byte.
"objdump -dw" shows:
0: c5 fe 6f 0d ff ff ff ff vmovdqu -0x1(%rip),%ymm1 # 0x7
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