[commits] r13230 - in /branches/eglibc-2_12/ports: ChangeLog.arm sysdeps/arm/sysdep.h

[joseph@xxxxxxxxxx]

Author: joseph
Date: Mon Mar 21 10:53:45 2011
New Revision: 13230

Log:
Merge changes between r12754 and r13229 from /fsf/glibc-2_12-branch.

Modified:
    branches/eglibc-2_12/ports/ChangeLog.arm
    branches/eglibc-2_12/ports/sysdeps/arm/sysdep.h

Modified: branches/eglibc-2_12/ports/ChangeLog.arm
==============================================================================
--- branches/eglibc-2_12/ports/ChangeLog.arm (original)
+++ branches/eglibc-2_12/ports/ChangeLog.arm Mon Mar 21 10:53:45 2011
@@ -1,3 +1,10 @@
+2011-02-16  Manjunath Matti  <manjunath81@xxxxxxxxx>
+
+	* 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.
+
 2010-05-21  Joseph Myers  <joseph@xxxxxxxxxxxxxxxx>
 
 	* sysdeps/unix/sysv/linux/arm/eabi/internal_recvmmsg.S: New.

Modified: branches/eglibc-2_12/ports/sysdeps/arm/sysdep.h
==============================================================================
--- branches/eglibc-2_12/ports/sysdeps/arm/sysdep.h (original)
+++ branches/eglibc-2_12/ports/sysdeps/arm/sysdep.h Mon Mar 21 10:53:45 2011
@@ -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
@@ -109,7 +121,11 @@
    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__)