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authorAndreas Schwab <schwab@redhat.com>2011-08-09 10:07:10 -0400
committerAndreas Schwab <schwab@redhat.com>2011-08-09 16:42:12 +0200
commit3ae1021beaaff6d17198959ce21a301992b1f776 (patch)
tree397c52a73e74cafb3d870f64c242acde9e5a9609
parente2a309033d626c4b643afaf7e7ad2ccf4930dc35 (diff)
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Fix stack alignment on x86_64
(cherry picked from commit a724d1b9bfa0f6ee9146b365e43ea6e245d0cf0c)
-rw-r--r--nptl/ChangeLog7
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S6
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S6
-rw-r--r--nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S4
4 files changed, 16 insertions, 7 deletions
diff --git a/nptl/ChangeLog b/nptl/ChangeLog
index c545b07..7411ae5 100644
--- a/nptl/ChangeLog
+++ b/nptl/ChangeLog
@@ -1,3 +1,10 @@
+2011-08-08 Andreas Schwab <schwab@redhat.com>
+
+ * sysdeps/unix/sysv/linux/x86_64/cancellation.S: Maintain aligned
+ stack.
+ * sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S: Likewise.
+ * sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S: Likewise.
+
2011-06-30 Ulrich Drepper <drepper@gmail.com>
* nptl-init.c (__nptl_set_robust): New function.
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S b/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S
index 6806962..a06cd9b 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/cancellation.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2009, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2009.
@@ -71,7 +71,9 @@ ENTRY(__pthread_enable_asynccancel)
1: ret
-3: movq $TCB_PTHREAD_CANCELED, %fs:RESULT
+3: subq $8, %rsp
+ cfi_adjust_cfa_offset(8)
+ movq $TCB_PTHREAD_CANCELED, %fs:RESULT
lock
orl $TCB_EXITING_BITMASK, %fs:CANCELHANDLING
movq %fs:CLEANUP_JMP_BUF, %rdi
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
index e6535fb..48ea8b9 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2005, 2007, 2009, 2010 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2005, 2007, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -63,9 +63,9 @@ __pthread_cond_timedwait:
cfi_adjust_cfa_offset(8)
cfi_rel_offset(%r15, 0)
#ifdef __ASSUME_FUTEX_CLOCK_REALTIME
-# define FRAME_SIZE 32
+# define FRAME_SIZE (32+8)
#else
-# define FRAME_SIZE 48
+# define FRAME_SIZE (48+8)
#endif
subq $FRAME_SIZE, %rsp
cfi_adjust_cfa_offset(FRAME_SIZE)
diff --git a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
index f5b929e..7535baa 100644
--- a/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
+++ b/nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S
@@ -1,4 +1,4 @@
-/* Copyright (C) 2002-2007, 2009 Free Software Foundation, Inc.
+/* Copyright (C) 2002-2007, 2009, 2011 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
@@ -45,7 +45,7 @@ __pthread_cond_wait:
cfi_lsda(DW_EH_PE_udata4, .LexceptSTART)
#endif
-#define FRAME_SIZE 32
+#define FRAME_SIZE (32+8)
leaq -FRAME_SIZE(%rsp), %rsp
cfi_adjust_cfa_offset(FRAME_SIZE)