Community source repository for glibc add-on ports branch, release/2.11/master, updated. glibc-2.11.3-5-g7e0667e

jsm28@sourceware.org jsm28@sourceware.org
Thu Mar 10 00:35:00 GMT 2011


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- Log -----------------------------------------------------------------
http://sources.redhat.com/git/gitweb.cgi?p=glibc-ports.git;a=commitdiff;h=7e0667e5e082e880bc7ac5c5bcda1e657328e1cc

commit 7e0667e5e082e880bc7ac5c5bcda1e657328e1cc
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.
    (cherry picked from commit 94fd527b67373373ebf6364d8b42c1d9fac1ea1c)

diff --git a/ChangeLog.arm b/ChangeLog.arm
index 1a4b99d..f6359a9 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 442d3a1..63bcbfc 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__))
@@ -89,10 +90,16 @@
 
 /* If compiled for profiling, call `mcount' at the start of each function.  */
 #ifdef	PROF
+#if __GNUC_PREREQ(4,4) && defined(__ARM_EABI__)
+#define CALL_MCOUNT			\
+	str	lr,[sp, #-4]!	;	\
+	bl	PLTJMP(mcount)	;
+#else
 #define CALL_MCOUNT			\
 	str	lr,[sp, #-4]!	;	\
 	bl	PLTJMP(mcount)	;	\
 	ldr	lr, [sp], #4	;
+#endif
 #else
 #define CALL_MCOUNT		/* Do nothing.  */
 #endif
@@ -102,8 +109,12 @@
    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 |   11 +++++++++++
 2 files changed, 18 insertions(+), 0 deletions(-)


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