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| author | Ulrich Drepper <drepper@redhat.com> | 2009-07-29 08:50:03 -0700 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2009-07-29 08:50:03 -0700 |
| commit | 649bf1332071954cbae3e9159708aea1b7c9ae31 (patch) | |
| tree | 9bbcc65483680119bb8d10a7d6088a5692e0b272 | |
| parent | 09e0389eb12491d3e9ef74b299b66efdd67adb1c (diff) | |
| download | glibc-649bf1332071954cbae3e9159708aea1b7c9ae31.zip glibc-649bf1332071954cbae3e9159708aea1b7c9ae31.tar.gz glibc-649bf1332071954cbae3e9159708aea1b7c9ae31.tar.bz2 | |
Improve CFI in x86-64 ld.so trampoline code.
| -rw-r--r-- | ChangeLog | 5 | ||||
| -rw-r--r-- | sysdeps/x86_64/dl-trampoline.S | 3 |
2 files changed, 7 insertions, 1 deletions
@@ -1,3 +1,8 @@ +2009-07-29 Ulrich Drepper <drepper@redhat.com> + + * sysdeps/x86_64/dl-trampoline.S (_dl_runtime_profile): Improve CFI + information. + 2009-07-28 H.J. Lu <hongjiu.lu@intel.com> * sysdeps/x86_64/dl-trampoline.S: Properly restore AVX registers. diff --git a/sysdeps/x86_64/dl-trampoline.S b/sysdeps/x86_64/dl-trampoline.S index 5a4c6dd..20da695 100644 --- a/sysdeps/x86_64/dl-trampoline.S +++ b/sysdeps/x86_64/dl-trampoline.S @@ -61,6 +61,7 @@ _dl_runtime_resolve: cfi_startproc _dl_runtime_profile: + cfi_adjust_cfa_offset(16) # Incorporate PLT /* The La_x86_64_regs data structure pointed to by the fourth paramater must be 16-byte aligned. This must be explicitly enforced. We have the set up a dynamically @@ -68,7 +69,7 @@ _dl_runtime_profile: has a fixed size and preserves the original stack pointer. */ subq $32, %rsp # Allocate the local storage. - cfi_adjust_cfa_offset(48) # Incorporate PLT + cfi_adjust_cfa_offset(32) movq %rbx, (%rsp) cfi_rel_offset(%rbx, 0) |