[PATCH] powerpc: enable PPC_PTRACE_[GS]ETREGS on ppc32
I have tested PPC_PTRACE_GETREGS and PPC_PTRACE_SETREGS on umview.
I do not understand why historically these tags has been defined as
PPC_PTRACE_GETREGS and PPC_PTRACE_SETREGS instead of simply
PTRACE_[GS]ETREGS. The other "originality" is that the address must be
put into the "addr" field instead of the "data" field as stated in the
manual.
Signed-off-by: renzo davoli <renzo@cs.unibo.it>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 4a677d1..5563e2e 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -404,7 +404,6 @@
ret = ptrace_detach(child, data);
break;
-#ifdef CONFIG_PPC64
case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */
int i;
unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
@@ -468,7 +467,6 @@
}
break;
}
-#endif /* CONFIG_PPC64 */
#ifdef CONFIG_ALTIVEC
case PTRACE_GETVRREGS:
diff --git a/include/asm-powerpc/ptrace.h b/include/asm-powerpc/ptrace.h
index 9c550b3..dc4cb9c 100644
--- a/include/asm-powerpc/ptrace.h
+++ b/include/asm-powerpc/ptrace.h
@@ -229,13 +229,13 @@
#define PTRACE_GET_DEBUGREG 25
#define PTRACE_SET_DEBUGREG 26
-#ifdef __powerpc64__
/* Additional PTRACE requests implemented on PowerPC. */
#define PPC_PTRACE_GETREGS 0x99 /* Get GPRs 0 - 31 */
#define PPC_PTRACE_SETREGS 0x98 /* Set GPRs 0 - 31 */
#define PPC_PTRACE_GETFPREGS 0x97 /* Get FPRs 0 - 31 */
#define PPC_PTRACE_SETFPREGS 0x96 /* Set FPRs 0 - 31 */
+#ifdef __powerpc64__
/* Calls to trace a 64bit program from a 32bit program */
#define PPC_PTRACE_PEEKTEXT_3264 0x95
#define PPC_PTRACE_PEEKDATA_3264 0x94