On Wed, 2006-08-09 at 15:49 +0530, Ananth N Mavinakayanahalli wrote:
> Updated patch ...
>
> Add the "return_value" macro that just extracts the return value given
> the pt_regs. Useful in situations such as while using function-return
> probes.
return_value definition for s390 see below.
--
blue skies,
Martin.
Martin Schwidefsky
Linux for zSeries Development & Services
IBM Deutschland Entwicklung GmbH
"Reality continues to ruin my life." - Calvin.
---
diff -urpN linux-2.6.18-rc3/include/asm-s390/ptrace.h linux-2.6.18-s390/include/asm-s390/ptrace.h
--- linux-2.6.18-rc3/include/asm-s390/ptrace.h 2006-06-29 12:47:32.000000000 +0200
+++ linux-2.6.18-s390/include/asm-s390/ptrace.h 2006-08-09 12:25:23.000000000 +0200
@@ -472,6 +472,7 @@ struct user_regs_struct
#define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
#define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
+#define return_value(regs)((regs)->gprs[2])
#define profile_pc(regs) instruction_pointer(regs)
extern void show_regs(struct pt_regs * regs);
#endif
-
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