[PATCH] ppc64: Add definitions for new PTRACE calls (a94d3085) · Commits · 戴 / test

- Add PTRACE_GET_DEBUGREG/PTRACE_SET_DEBUGREG. The definition is as follows: /* * Get or set a debug register. The first 16 are DABR registers and the * second 16 are IABR registers. */ #define PTRACE_GET_DEBUGREG 25 #define PTRACE_SET_DEBUGREG 26 DABR == data breakpoint and IABR = instruction breakpoint in IBM speak. We could split out the IABR into 2 more ptrace calls but I figured there was no need and 16 DABR registers should be more than enough (POWER4/POWER5 have one). - Add 2 new SIGTRAP si_codes: TRAP_HWBKPT and TRAP_BRANCH. I couldnt find any standards on either of these so I copied what ia64 is doing. Again this might be better placed in include/asm-generic/siginfo.h Signed-off-by:

Anton Blanchard <anton@samba.org> Signed-off-by:

Paul Mackerras <paulus@samba.org>

include/asm-powerpc/siginfo.h

+8 −0

Original line number	Diff line number	Diff line
		@@ -15,4 +15,12 @@

		#include <asm-generic/siginfo.h>

		/*
		* SIGTRAP si_codes
		*/
		#define TRAP_BRANCH (__SI_FAULT\|3) /* process taken branch trap */
		#define TRAP_HWBKPT (__SI_FAULT\|4) /* hardware breakpoint or watchpoint */
		#undef NSIGTRAP
		#define NSIGTRAP 4

		#endif /* _ASM_POWERPC_SIGINFO_H */

include/asm-ppc/ptrace.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -142,4 +142,11 @@ do { \
		#define PTRACE_GETEVRREGS 20
		#define PTRACE_SETEVRREGS 21

		/*
		* Get or set a debug register. The first 16 are DABR registers and the
		* second 16 are IABR registers.
		*/
		#define PTRACE_GET_DEBUGREG 25
		#define PTRACE_SET_DEBUGREG 26

		#endif

include/asm-ppc64/ptrace.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -189,6 +189,13 @@ extern unsigned long profile_pc(struct pt_regs *regs);
		#define PTRACE_SETEVRREGS 21
		#endif

		/*
		* Get or set a debug register. The first 16 are DABR registers and the
		* second 16 are IABR registers.
		*/
		#define PTRACE_GET_DEBUGREG 25
		#define PTRACE_SET_DEBUGREG 26

		/* Additional PTRACE requests implemented on PowerPC. */
		#define PPC_PTRACE_GETREGS 0x99 /* Get GPRs 0 - 31 */
		#define PPC_PTRACE_SETREGS 0x98 /* Set GPRs 0 - 31 */

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