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Commit a94d3085 authored by Anton Blanchard's avatar Anton Blanchard Committed by Paul Mackerras
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[PATCH] ppc64: Add definitions for new PTRACE calls 



- 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: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent df09ce4a

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 */