| commit | 2eb9ef29b698bb7706833236b4b9041f0c23ceef | |
| author | H.J. Lu <hjl.tools@gmail.com> | |
| Thu, 9 Jul 2015 16:30:09 +0000 (9 09:30 -0700) | ||
| committer | H.J. Lu <hjl.tools@gmail.com> | |
| Thu, 9 Jul 2015 16:30:20 +0000 (9 09:30 -0700) | ||
| tree | dcd7f9da582252e2e77abfcae48079047d59a0c5 | treesnapshot (tar.gz zip) |
| parent | 14c5cbabc2d11004ab223ae5eae761ddf83ef99e | commitdiff |
Improve bndmov encoding with zero displacement
If x86-64 assembler doesn't support MPX, we encode bndmov instruction by
hand. When displacement is zero, assembler generates shorter encoding.
This patch improves bndmov encoding with zero displacement so that ld.so
is identical when using assemblers with and without MPX support.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve): Improve
bndmov encoding with zero displacement.
If x86-64 assembler doesn't support MPX, we encode bndmov instruction by
hand. When displacement is zero, assembler generates shorter encoding.
This patch improves bndmov encoding with zero displacement so that ld.so
is identical when using assemblers with and without MPX support.
* sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve): Improve
bndmov encoding with zero displacement.
| ChangeLog | diffblobblamehistory | |
| sysdeps/x86_64/dl-trampoline.S | diffblobblamehistory |