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Commit 98a90c02 authored by Renzo Davoli's avatar Renzo Davoli Committed by Paul Mackerras
Browse files

[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: default avatarrenzo davoli <renzo@cs.unibo.it>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent c029cc66

arch/powerpc/kernel/ptrace.c

+0 −2
Original line number Original line Diff line number Diff line
@@ -404,7 +404,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 
		ret = ptrace_detach(child, data);

		ret = ptrace_detach(child, data);

		break;

		break;





#ifdef CONFIG_PPC64

	case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */

	case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */

		int i;

		int i;

		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];

		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
@@ -468,7 +467,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) 
		}

		}

		break;

		break;

	}

	}

#endif /* CONFIG_PPC64 */





#ifdef CONFIG_ALTIVEC

#ifdef CONFIG_ALTIVEC

	case PTRACE_GETVRREGS:

	case PTRACE_GETVRREGS:

include/asm-powerpc/ptrace.h

+1 −1
Original line number Original line Diff line number Diff line
@@ -229,13 +229,13 @@ do { \ 
#define PTRACE_GET_DEBUGREG	25

#define PTRACE_GET_DEBUGREG	25

#define PTRACE_SET_DEBUGREG	26

#define PTRACE_SET_DEBUGREG	26





#ifdef __powerpc64__

/* Additional PTRACE requests implemented on PowerPC. */

/* Additional PTRACE requests implemented on PowerPC. */

#define PPC_PTRACE_GETREGS	0x99	/* Get GPRs 0 - 31 */

#define PPC_PTRACE_GETREGS	0x99	/* Get GPRs 0 - 31 */

#define PPC_PTRACE_SETREGS	0x98	/* Set GPRs 0 - 31 */

#define PPC_PTRACE_SETREGS	0x98	/* Set GPRs 0 - 31 */

#define PPC_PTRACE_GETFPREGS	0x97	/* Get FPRs 0 - 31 */

#define PPC_PTRACE_GETFPREGS	0x97	/* Get FPRs 0 - 31 */

#define PPC_PTRACE_SETFPREGS	0x96	/* Set FPRs 0 - 31 */

#define PPC_PTRACE_SETFPREGS	0x96	/* Set FPRs 0 - 31 */





#ifdef __powerpc64__

/* Calls to trace a 64bit program from a 32bit program */

/* Calls to trace a 64bit program from a 32bit program */

#define PPC_PTRACE_PEEKTEXT_3264 0x95

#define PPC_PTRACE_PEEKTEXT_3264 0x95

#define PPC_PTRACE_PEEKDATA_3264 0x94

#define PPC_PTRACE_PEEKDATA_3264 0x94