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GNU C Library master sources branch master updated. glibc-2.24-90-g0ac8ee5
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 26 Aug 2016 15:58:09 -0000
- Subject: GNU C Library master sources branch master updated. glibc-2.24-90-g0ac8ee5
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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=0ac8ee53e8efbfd6e1c37094b4653f5c2dad65b5
commit 0ac8ee53e8efbfd6e1c37094b4653f5c2dad65b5
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Aug 26 08:57:42 2016 -0700
X86-64: Correct CFA in _dl_runtime_resolve
When stack is re-aligned in _dl_runtime_resolve, there is no need to
adjust CFA when allocating register save area on stack.
* sysdeps/x86_64/dl-trampoline.h (_dl_runtime_resolve): Don't
adjust CFA when allocating register save area on re-aligned
stack.
diff --git a/ChangeLog b/ChangeLog
index 4324678..a8aae15 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2016-08-26 H.J. Lu <hongjiu.lu@intel.com>
+
+ * sysdeps/x86_64/dl-trampoline.h (_dl_runtime_resolve): Don't
+ adjust CFA when allocating register save area on re-aligned
+ stack.
+
2016-08-26 Florian Weimer <fweimer@redhat.com>
* string/tst-cmp.c: New test.
diff --git a/sysdeps/x86_64/dl-trampoline.h b/sysdeps/x86_64/dl-trampoline.h
index b90836a..8161f96 100644
--- a/sysdeps/x86_64/dl-trampoline.h
+++ b/sysdeps/x86_64/dl-trampoline.h
@@ -69,7 +69,9 @@ _dl_runtime_resolve:
and $-VEC_SIZE, %RSP_LP
#endif
sub $REGISTER_SAVE_AREA, %RSP_LP
+#if !DL_RUNTIME_RESOLVE_REALIGN_STACK
cfi_adjust_cfa_offset(REGISTER_SAVE_AREA)
+#endif
# Preserve registers otherwise clobbered.
movq %rax, REGISTER_SAVE_RAX(%rsp)
movq %rcx, REGISTER_SAVE_RCX(%rsp)
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 6 ++++++
sysdeps/x86_64/dl-trampoline.h | 2 ++
2 files changed, 8 insertions(+), 0 deletions(-)
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