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Commit a0987224 authored by Anton Blanchard's avatar Anton Blanchard Committed by Paul Mackerras
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[PATCH] ppc64: ptrace cleanups 



- Remove the PPC_REG* defines
- Wrap some more stuff with ifdef __KERNEL__
- Add missing PT_TRAP, PT_DAR, PT_DSISR defines
- Add PTRACE_GETEVRREGS/PTRACE_SETEVRREGS, even though we dont use it on
  ppc64 we dont want to allocate them for something else.

Signed-off-by: default avatarAnton Blanchard <anton@samba.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
parent 962bca7f

include/asm-ppc64/ptrace.h

+69 −52
Original line number Diff line number Diff line
@@ -25,56 +25,49 @@ 
 */



#ifndef __ASSEMBLY__

#define PPC_REG unsigned long



struct pt_regs {

	PPC_REG gpr[32];

	PPC_REG nip;

	PPC_REG msr;

	PPC_REG orig_gpr3;	/* Used for restarting system calls */

	PPC_REG ctr;

	PPC_REG link;

	PPC_REG xer;

	PPC_REG ccr;

	PPC_REG softe;		/* Soft enabled/disabled */

	PPC_REG trap;		/* Reason for being here */

	PPC_REG dar;		/* Fault registers */

	PPC_REG dsisr;

	PPC_REG result; 	/* Result of a system call */

	unsigned long gpr[32];

	unsigned long nip;

	unsigned long msr;

	unsigned long orig_gpr3; /* Used for restarting system calls */

	unsigned long ctr;

	unsigned long link;

	unsigned long xer;

	unsigned long ccr;

	unsigned long softe;	/* Soft enabled/disabled */

	unsigned long trap;	/* Reason for being here */

	unsigned long dar;	/* Fault registers */

	unsigned long dsisr;

	unsigned long result;	/* Result of a system call */

};



#define PPC_REG_32 unsigned int

struct pt_regs32 {

	PPC_REG_32 gpr[32];

	PPC_REG_32 nip;

	PPC_REG_32 msr;

	PPC_REG_32 orig_gpr3;	/* Used for restarting system calls */

	PPC_REG_32 ctr;

	PPC_REG_32 link;

	PPC_REG_32 xer;

	PPC_REG_32 ccr;

	PPC_REG_32 mq;		/* 601 only (not used at present) */

				/* Used on APUS to hold IPL value. */

	PPC_REG_32 trap;		/* Reason for being here */

	PPC_REG_32 dar;		/* Fault registers */

	PPC_REG_32 dsisr;

	PPC_REG_32 result; 	/* Result of a system call */

	unsigned int gpr[32];

	unsigned int nip;

	unsigned int msr;

	unsigned int orig_gpr3;	/* Used for restarting system calls */

	unsigned int ctr;

	unsigned int link;

	unsigned int xer;

	unsigned int ccr;

	unsigned int mq;	/* 601 only (not used at present) */

	unsigned int trap;	/* Reason for being here */

	unsigned int dar;	/* Fault registers */

	unsigned int dsisr;

	unsigned int result;	/* Result of a system call */

};



#ifdef __KERNEL__



#define instruction_pointer(regs) ((regs)->nip)



#ifdef CONFIG_SMP

extern unsigned long profile_pc(struct pt_regs *regs);

#else

#define profile_pc(regs) instruction_pointer(regs)

#endif



#endif /* __ASSEMBLY__ */



#define STACK_FRAME_OVERHEAD	112	/* size of minimum stack frame */



/* Size of dummy stack frame allocated when calling signal handler. */

#define __SIGNAL_FRAMESIZE	128

#define __SIGNAL_FRAMESIZE32	64



#define user_mode(regs) ((((regs)->msr) >> MSR_PR_LG) & 0x1)



#define force_successful_syscall_return()   \
@@ -89,6 +82,16 @@ extern unsigned long profile_pc(struct pt_regs *regs); 
#define TRAP(regs)		((regs)->trap & ~0xF)

#define CHECK_FULL_REGS(regs)	BUG_ON(regs->trap & 1)



#endif /* __KERNEL__ */



#endif /* __ASSEMBLY__ */



#define STACK_FRAME_OVERHEAD	112	/* size of minimum stack frame */



/* Size of dummy stack frame allocated when calling signal handler. */

#define __SIGNAL_FRAMESIZE	128

#define __SIGNAL_FRAMESIZE32	64



/*

 * Offsets used by 'ptrace' system call interface.

 */
@@ -135,12 +138,16 @@ extern unsigned long profile_pc(struct pt_regs *regs); 
#define PT_XER	37

#define PT_CCR	38

#define PT_SOFTE 39

#define PT_TRAP	40

#define PT_DAR	41

#define PT_DSISR 42

#define PT_RESULT 43



#define PT_FPR0	48



/* Kernel and userspace will both use this PT_FPSCR value.  32-bit apps will have

 * visibility to the asm-ppc/ptrace.h header instead of this one.

/*

 * Kernel and userspace will both use this PT_FPSCR value.  32-bit apps will

 * have visibility to the asm-ppc/ptrace.h header instead of this one.

 */

#define PT_FPSCR (PT_FPR0 + 32)	/* each FP reg occupies 1 slot in 64-bit space */
@@ -173,17 +180,27 @@ extern unsigned long profile_pc(struct pt_regs *regs); 
#define PTRACE_GETVRREGS	18

#define PTRACE_SETVRREGS	19



/*

 * While we dont have 64bit book E processors, we need to reserve the

 * relevant ptrace calls for 32bit compatibility.

 */

#if 0

#define PTRACE_GETEVRREGS       20

#define PTRACE_SETEVRREGS       21

#endif



/* 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 */

#define PPC_PTRACE_PEEKTEXT_3264  0x95  /* Read word at location ADDR on a 64-bit process from a 32-bit process. */

#define PPC_PTRACE_PEEKDATA_3264  0x94  /* Read word at location ADDR on a 64-bit process from a 32-bit process. */

#define PPC_PTRACE_POKETEXT_3264  0x93  /* Write word at location ADDR on a 64-bit process from a 32-bit process. */

#define PPC_PTRACE_POKEDATA_3264  0x92  /* Write word at location ADDR on a 64-bit process from a 32-bit process. */

#define PPC_PTRACE_PEEKUSR_3264   0x91  /* Read a register (specified by ADDR) out of the "user area" on a 64-bit process from a 32-bit process. */

#define PPC_PTRACE_POKEUSR_3264   0x90  /* Write DATA into location ADDR within the "user area" on a 64-bit process from a 32-bit process. */



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

#define PPC_PTRACE_PEEKTEXT_3264 0x95

#define PPC_PTRACE_PEEKDATA_3264 0x94

#define PPC_PTRACE_POKETEXT_3264 0x93

#define PPC_PTRACE_POKEDATA_3264 0x92

#define PPC_PTRACE_PEEKUSR_3264  0x91

#define PPC_PTRACE_POKEUSR_3264  0x90



#endif /* _PPC64_PTRACE_H */