diff options
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/dl-trampoline.S | 8 |
2 files changed, 13 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index f8765bb6b7..c48416b0e5 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2015-07-09 H.J. Lu <hongjiu.lu@intel.com> + + * sysdeps/x86_64/dl-trampoline.S (_dl_runtime_resolve): Improve + bndmov encoding with zero displacement. + 2015-07-09 Igor Zamyatin <igor.zamyatin@intel.com> H.J. Lu <hongjiu.lu@intel.com> diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S index b151d3566d..678c57fc24 100644 --- a/sysdeps/x86_64/dl-trampoline.S +++ b/sysdeps/x86_64/dl-trampoline.S @@ -80,7 +80,11 @@ _dl_runtime_resolve: bndmov %bnd2, REGISTER_SAVE_BND2(%rsp) bndmov %bnd3, REGISTER_SAVE_BND3(%rsp) # else +# if REGISTER_SAVE_BND0 == 0 + .byte 0x66,0x0f,0x1b,0x04,0x24 +# else .byte 0x66,0x0f,0x1b,0x44,0x24,REGISTER_SAVE_BND0 +# endif .byte 0x66,0x0f,0x1b,0x4c,0x24,REGISTER_SAVE_BND1 .byte 0x66,0x0f,0x1b,0x54,0x24,REGISTER_SAVE_BND2 .byte 0x66,0x0f,0x1b,0x5c,0x24,REGISTER_SAVE_BND3 @@ -104,7 +108,11 @@ _dl_runtime_resolve: .byte 0x66,0x0f,0x1a,0x5c,0x24,REGISTER_SAVE_BND3 .byte 0x66,0x0f,0x1a,0x54,0x24,REGISTER_SAVE_BND2 .byte 0x66,0x0f,0x1a,0x4c,0x24,REGISTER_SAVE_BND1 +# if REGISTER_SAVE_BND0 == 0 + .byte 0x66,0x0f,0x1a,0x04,0x24 +# else .byte 0x66,0x0f,0x1a,0x44,0x24,REGISTER_SAVE_BND0 +# endif # endif #endif # Get register content back. |