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Community source repository for glibc add-on ports branch, master, updated. glibc-2.13-1-g94fd527
- From: jsm28 at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 16 Feb 2011 17:30:50 -0000
- Subject: Community source repository for glibc add-on ports branch, master, updated. glibc-2.13-1-g94fd527
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http://sources.redhat.com/git/gitweb.cgi?p=glibc-ports.git;a=commitdiff;h=94fd527b67373373ebf6364d8b42c1d9fac1ea1c
commit 94fd527b67373373ebf6364d8b42c1d9fac1ea1c
Author: Manjunath Matti <manjunath81@gmail.com>
Date: Wed Feb 16 17:30:13 2011 +0000
Fix profiling libc for ARM EABI to use __gnu_mcount_nc interface when available.
diff --git a/ChangeLog.arm b/ChangeLog.arm
index 8ea3b9e..5e59f09 100644
--- a/ChangeLog.arm
+++ b/ChangeLog.arm
@@ -1,3 +1,10 @@
+2011-02-16 Manjunath Matti <manjunath81@gmail.com>
+
+ * sysdeps/arm/sysdep.h (CALL_MCOUNT): Use __gnu_mcount_nc
+ interface for EABI with GCC 4.4 or later.
+ (mcount): Define to __gnu_mcount_nc for EABI with GCC 4.4 or
+ later.
+
2011-01-25 Joseph Myers <joseph@codesourcery.com>
* sysdeps/unix/sysv/linux/arm/bits/mman.h (MADV_HUGEPAGE,
diff --git a/sysdeps/arm/sysdep.h b/sysdeps/arm/sysdep.h
index 9ffd7df..5c01ef0 100644
--- a/sysdeps/arm/sysdep.h
+++ b/sysdeps/arm/sysdep.h
@@ -18,6 +18,7 @@
02111-1307 USA. */
#include <sysdeps/generic/sysdep.h>
+#include <features.h>
#if (!defined (__ARM_ARCH_2__) && !defined (__ARM_ARCH_3__) \
&& !defined (__ARM_ARCH_3M__) && !defined (__ARM_ARCH_4__))
@@ -92,6 +93,16 @@
/* If compiled for profiling, call `mcount' at the start of each function. */
#ifdef PROF
+/* Call __gnu_mcount_nc if GCC >= 4.4 and abi = EABI. */
+#if __GNUC_PREREQ(4,4) && defined(__ARM_EABI__)
+#define CALL_MCOUNT \
+ str lr,[sp, #-4]!; \
+ cfi_adjust_cfa_offset (4); \
+ cfi_rel_offset (lr, 0); \
+ bl PLTJMP(mcount); \
+ cfi_adjust_cfa_offset (-4); \
+ cfi_restore (lr)
+#else /* else call _mcount */
#define CALL_MCOUNT \
str lr,[sp, #-4]!; \
cfi_adjust_cfa_offset (4); \
@@ -100,6 +111,7 @@
ldr lr, [sp], #4; \
cfi_adjust_cfa_offset (-4); \
cfi_restore (lr)
+#endif
#else
#define CALL_MCOUNT /* Do nothing. */
#endif
@@ -109,8 +121,12 @@
on this system, the asm identifier `syscall_error' intrudes on the
C name space. Make sure we use an innocuous name. */
#define syscall_error __syscall_error
+#if __GNUC_PREREQ(4,4) && defined(__ARM_EABI__)
+#define mcount __gnu_mcount_nc
+#else
#define mcount _mcount
#endif
+#endif
#if defined(__ARM_EABI__)
/* Tag_ABI_align8_preserved: This code preserves 8-byte
-----------------------------------------------------------------------
Summary of changes:
ChangeLog.arm | 7 +++++++
sysdeps/arm/sysdep.h | 16 ++++++++++++++++
2 files changed, 23 insertions(+), 0 deletions(-)
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