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authorAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-11-22 06:36:54 -0600
committerAdhemerval Zanella <azanella@linux.vnet.ibm.com>2013-12-05 07:44:07 -0600
commiteb5ad6b9bcf579f1cb5c67ca4650ee4a0cf1b4b1 (patch)
treeb82b8fbfb23fb60cc69d4bd06bf8ef13c471c9eb /sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
parent76a4a26979e58132d500e700ac1637a09c6d9cef (diff)
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PowerPC: Add systemtap static probe points in setjmp/longjmp
This patch add static probes for setjmp/longjmp in the way gdb expects,fixing
the gdb.base/longjmp.exp gdb testcases.

It changes the symbol_name and use macros to to avoid change the probe names
and ending up adding more logic on GDB (since with the expected name
GDB work seamlessly).
Diffstat (limited to 'sysdeps/powerpc/powerpc32/fpu/setjmp-common.S')
-rw-r--r--sysdeps/powerpc/powerpc32/fpu/setjmp-common.S10
1 files changed, 7 insertions, 3 deletions
diff --git a/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S b/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
index f3244060e0..08efd64920 100644
--- a/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
+++ b/sysdeps/powerpc/powerpc32/fpu/setjmp-common.S
@@ -17,6 +17,7 @@
    <http://www.gnu.org/licenses/>.  */
 
 #include <sysdep.h>
+#include <stap-probe.h>
 #define _ASM
 #ifdef __NO_VMX__
 # include <novmxsetjmp.h>
@@ -25,7 +26,7 @@
 #endif
 
 	.machine	"altivec"
-ENTRY (__sigsetjmp)
+ENTRY (__sigsetjmp_symbol)
 
 #ifdef PTR_MANGLE
 	mr   r5,r1
@@ -35,6 +36,9 @@ ENTRY (__sigsetjmp)
 	stw  r1,(JB_GPR1*4)(3)
 #endif
 	mflr r0
+	/* setjmp probe expects longjmp first argument (4@3), second argument
+	   (-4@4), and target address (4@0), respectively.  */
+	LIBC_PROBE (setjmp, 3, 4@3, -4@4, 4@0)
 	stw  r14,((JB_GPRS+0)*4)(3)
 	stfd fp14,((JB_FPRS+0*2)*4)(3)
 #ifdef PTR_MANGLE
@@ -175,5 +179,5 @@ L(aligned_save_vmx):
 	stvx	31,0,r6
 L(no_vmx):
 #endif
-	b __sigjmp_save@local
-END (__sigsetjmp)
+	b __sigjmp_save_symbol@local
+END (__sigsetjmp_symbol)