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Commit da80d460 authored by Stephen Rothwell's avatar Stephen Rothwell
Browse files

powerpc: merge ptrace.h 



Move struct ptregs32 into asm-ppc64/ppc32.h

Signed-off-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
parent c5a1ebd2

include/asm-ppc64/ptrace.h→include/asm-powerpc/ptrace.h

+89 −54
Original line number Diff line number Diff line 
#ifndef _PPC64_PTRACE_H

#define _PPC64_PTRACE_H

#ifndef _ASM_POWERPC_PTRACE_H

#define _ASM_POWERPC_PTRACE_H



/*

 * Copyright (C) 2001 PPC64 Team, IBM Corp
@@ -16,7 +16,7 @@ 
 * that the overall structure is a multiple of 16 bytes in length.

 *

 * Note that the offsets of the fields in this struct correspond with

 * the PT_* values below.  This simplifies arch/ppc64/kernel/ptrace.c.

 * the PT_* values below.  This simplifies arch/powerpc/kernel/ptrace.c.

 *

 * This program is free software; you can redistribute it and/or

 * modify it under the terms of the GNU General Public License
@@ -35,65 +35,91 @@ struct pt_regs { 
	unsigned long link;

	unsigned long xer;

	unsigned long ccr;

#ifdef __powerpc64__

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

#else

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

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

#endif

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

	/* N.B. for critical exceptions on 4xx, the dar and dsisr

	   fields are overloaded to hold srr0 and srr1. */

	unsigned long dar;		/* Fault registers */

	unsigned long dsisr;

	unsigned long dsisr;		/* on 4xx/Book-E used for ESR */

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

};



struct pt_regs32 {

	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 */

};

#endif /* __ASSEMBLY__ */



#ifdef __KERNEL__



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

#ifdef __powerpc64__



#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



#else /* __powerpc64__ */



#define STACK_FRAME_OVERHEAD	16	/* size of minimum stack frame */



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

#define __SIGNAL_FRAMESIZE	64



#endif /* __powerpc64__ */



#ifndef __ASSEMBLY__



#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



#ifdef __powerpc64__

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

#else

#define user_mode(regs) (((regs)->msr & MSR_PR) != 0)

#endif



#define force_successful_syscall_return()   \

		(current_thread_info()->syscall_noerror = 1)

	do { \

		current_thread_info()->syscall_noerror = 1; \

	} while(0)



/*

 * We use the least-significant bit of the trap field to indicate

 * whether we have saved the full set of registers, or only a

 * partial set.  A 1 there means the partial set.

 * On 4xx we use the next bit to indicate whether the exception

 * is a critical exception (1 means it is).

 */

#define FULL_REGS(regs)		(((regs)->trap & 1) == 0)

#ifndef __powerpc64__

#define IS_CRITICAL_EXC(regs)	(((regs)->trap & 2) == 0)

#endif /* ! __powerpc64__ */

#define TRAP(regs)		((regs)->trap & ~0xF)

#ifdef __powerpc64__

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



#endif /* __KERNEL__ */

#else

#define CHECK_FULL_REGS(regs)						      \

do {									      \

	if ((regs)->trap & 1)						      \

		printk(KERN_CRIT "%s: partial register set\n", __FUNCTION__); \

} while (0)

#endif /* __powerpc64__ */



#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

#endif /* __KERNEL__ */



/*

 * Offsets used by 'ptrace' system call interface.

 * These can't be changed without breaking binary compatibility

 * with MkLinux, etc.

 */

#define PT_R0	0

#define PT_R1	1
@@ -137,18 +163,25 @@ extern unsigned long profile_pc(struct pt_regs *regs); 
#define PT_LNK	36

#define PT_XER	37

#define PT_CCR	38

#ifndef __powerpc64__

#define PT_MQ	39

#else

#define PT_SOFTE 39

#define PT_TRAP	40

#define PT_DAR	41

#define PT_DSISR 42

#define PT_RESULT 43

#endif



#define PT_FPR0	48

#define PT_FPR0	48	/* each FP reg occupies 2 slots in this space */



#ifndef __powerpc64__



#define PT_FPR31 (PT_FPR0 + 2*31)

#define PT_FPSCR (PT_FPR0 + 2*32 + 1)



#else /* __powerpc64__ */



/*

 * 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 */



#ifdef __KERNEL__
@@ -165,6 +198,8 @@ extern unsigned long profile_pc(struct pt_regs *regs); 
#define PT_VRSAVE_32 (PT_VR0 + 33*4)

#endif



#endif /* __powerpc64__ */



/*

 * Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go.

 * The transfer totals 34 quadword.  Quadwords 0-31 contain the
@@ -180,14 +215,12 @@ 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

#ifndef __powerpc64__

/* Get/set all the upper 32-bits of the SPE registers, accumulator, and

 * spefscr, in one go */

#define PTRACE_GETEVRREGS	20

#define PTRACE_SETEVRREGS	21

#endif

#endif /* __powerpc64__ */



/*

 * Get or set a debug register. The first 16 are DABR registers and the
@@ -196,6 +229,7 @@ extern unsigned long profile_pc(struct pt_regs *regs); 
#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 */
@@ -209,5 +243,6 @@ extern unsigned long profile_pc(struct pt_regs *regs); 
#define PPC_PTRACE_POKEDATA_3264 0x92

#define PPC_PTRACE_PEEKUSR_3264  0x91

#define PPC_PTRACE_POKEUSR_3264  0x90

#endif /* __powerpc64__ */



#endif /* _PPC64_PTRACE_H */
 
#endif /* _ASM_POWERPC_PTRACE_H */

include/asm-ppc/ptrace.h

deleted100644 → 0
+0 −152
Original line number Diff line number Diff line 
#ifndef _PPC_PTRACE_H

#define _PPC_PTRACE_H



/*

 * This struct defines the way the registers are stored on the

 * kernel stack during a system call or other kernel entry.

 *

 * this should only contain volatile regs

 * since we can keep non-volatile in the thread_struct

 * should set this up when only volatiles are saved

 * by intr code.

 *

 * Since this is going on the stack, *CARE MUST BE TAKEN* to insure

 * that the overall structure is a multiple of 16 bytes in length.

 *

 * Note that the offsets of the fields in this struct correspond with

 * the PT_* values below.  This simplifies arch/ppc/kernel/ptrace.c.

 */



#ifndef __ASSEMBLY__

struct pt_regs {

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

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

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

	/* N.B. for critical exceptions on 4xx, the dar and dsisr

	   fields are overloaded to hold srr0 and srr1. */

	unsigned long dar;		/* Fault registers */

	unsigned long dsisr;		/* on 4xx/Book-E used for ESR */

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

};



#endif /* __ASSEMBLY__ */



#ifdef __KERNEL__

#define STACK_FRAME_OVERHEAD	16	/* size of minimum stack frame */



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

#define __SIGNAL_FRAMESIZE	64



#ifndef __ASSEMBLY__

#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



#define user_mode(regs) (((regs)->msr & MSR_PR) != 0)



#define force_successful_syscall_return()   \

	do { \

		current_thread_info()->syscall_noerror = 1; \

	} while(0)



/*

 * We use the least-significant bit of the trap field to indicate

 * whether we have saved the full set of registers, or only a

 * partial set.  A 1 there means the partial set.

 * On 4xx we use the next bit to indicate whether the exception

 * is a critical exception (1 means it is).

 */

#define FULL_REGS(regs)		(((regs)->trap & 1) == 0)

#define IS_CRITICAL_EXC(regs)	(((regs)->trap & 2) == 0)

#define TRAP(regs)		((regs)->trap & ~0xF)



#define CHECK_FULL_REGS(regs)						      \

do {									      \

	if ((regs)->trap & 1)						      \

		printk(KERN_CRIT "%s: partial register set\n", __FUNCTION__); \

} while (0)

#endif /* __ASSEMBLY__ */



#endif /* __KERNEL__ */



/*

 * Offsets used by 'ptrace' system call interface.

 * These can't be changed without breaking binary compatibility

 * with MkLinux, etc.

 */

#define PT_R0	0

#define PT_R1	1

#define PT_R2	2

#define PT_R3	3

#define PT_R4	4

#define PT_R5	5

#define PT_R6	6

#define PT_R7	7

#define PT_R8	8

#define PT_R9	9

#define PT_R10	10

#define PT_R11	11

#define PT_R12	12

#define PT_R13	13

#define PT_R14	14

#define PT_R15	15

#define PT_R16	16

#define PT_R17	17

#define PT_R18	18

#define PT_R19	19

#define PT_R20	20

#define PT_R21	21

#define PT_R22	22

#define PT_R23	23

#define PT_R24	24

#define PT_R25	25

#define PT_R26	26

#define PT_R27	27

#define PT_R28	28

#define PT_R29	29

#define PT_R30	30

#define PT_R31	31



#define PT_NIP	32

#define PT_MSR	33

#ifdef __KERNEL__

#define PT_ORIG_R3 34

#endif

#define PT_CTR	35

#define PT_LNK	36

#define PT_XER	37

#define PT_CCR	38

#define PT_MQ	39



#define PT_FPR0	48	/* each FP reg occupies 2 slots in this space */

#define PT_FPR31 (PT_FPR0 + 2*31)

#define PT_FPSCR (PT_FPR0 + 2*32 + 1)



/* Get/set all the altivec registers vr0..vr31, vscr, vrsave, in one go */

#define PTRACE_GETVRREGS	18

#define PTRACE_SETVRREGS	19



/* Get/set all the upper 32-bits of the SPE registers, accumulator, and

 * spefscr, in one go */

#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/ppc32.h

+16 −0
Original line number Diff line number Diff line
@@ -91,6 +91,22 @@ typedef struct sigaltstack_32 { 
	compat_size_t ss_size;

} stack_32_t;



struct pt_regs32 {

	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 */

};



struct sigcontext32 {

	unsigned int	_unused[4];

	int		signal;