273 lines
7.6 KiB
C
273 lines
7.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
|
|
/*
|
|
* Copyright (C) 2001 PPC64 Team, IBM Corp
|
|
*
|
|
* 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/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
|
|
* as published by the Free Software Foundation; either version
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
#ifndef _UAPI_ASM_POWERPC_PTRACE_H
|
|
#define _UAPI_ASM_POWERPC_PTRACE_H
|
|
|
|
|
|
#include <linux/types.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
#ifdef __KERNEL__
|
|
struct user_pt_regs
|
|
#else
|
|
struct pt_regs
|
|
#endif
|
|
{
|
|
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;
|
|
#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; /* on 4xx/Book-E used for ESR */
|
|
unsigned long result; /* Result of a system call */
|
|
};
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
|
|
/*
|
|
* 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
|
|
#define PT_ORIG_R3 34
|
|
#define PT_CTR 35
|
|
#define PT_LNK 36
|
|
#define PT_XER 37
|
|
#define PT_CCR 38
|
|
#ifndef __powerpc64__
|
|
#define PT_MQ 39
|
|
#else
|
|
#define PT_SOFTE 39
|
|
#endif
|
|
#define PT_TRAP 40
|
|
#define PT_DAR 41
|
|
#define PT_DSISR 42
|
|
#define PT_RESULT 43
|
|
#define PT_DSCR 44
|
|
#define PT_REGS_COUNT 44
|
|
|
|
#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__ */
|
|
|
|
#define PT_FPSCR (PT_FPR0 + 32) /* each FP reg occupies 1 slot in 64-bit space */
|
|
|
|
|
|
#define PT_VR0 82 /* each Vector reg occupies 2 slots in 64-bit */
|
|
#define PT_VSCR (PT_VR0 + 32*2 + 1)
|
|
#define PT_VRSAVE (PT_VR0 + 33*2)
|
|
|
|
|
|
/*
|
|
* Only store first 32 VSRs here. The second 32 VSRs in VR0-31
|
|
*/
|
|
#define PT_VSR0 150 /* each VSR reg occupies 2 slots in 64-bit */
|
|
#define PT_VSR31 (PT_VSR0 + 2*31)
|
|
#endif /* __powerpc64__ */
|
|
|
|
/*
|
|
* Get/set all the altivec registers v0..v31, vscr, vrsave, in one go.
|
|
* The transfer totals 34 quadword. Quadwords 0-31 contain the
|
|
* corresponding vector registers. Quadword 32 contains the vscr as the
|
|
* last word (offset 12) within that quadword. Quadword 33 contains the
|
|
* vrsave as the first word (offset 0) within the quadword.
|
|
*
|
|
* This definition of the VMX state is compatible with the current PPC32
|
|
* ptrace interface. This allows signal handling and ptrace to use the same
|
|
* structures. This also simplifies the implementation of a bi-arch
|
|
* (combined (32- and 64-bit) gdb.
|
|
*/
|
|
#define PTRACE_GETVRREGS 0x12
|
|
#define PTRACE_SETVRREGS 0x13
|
|
|
|
/* Get/set all the upper 32-bits of the SPE registers, accumulator, and
|
|
* spefscr, in one go */
|
|
#define PTRACE_GETEVRREGS 0x14
|
|
#define PTRACE_SETEVRREGS 0x15
|
|
|
|
/* Get the first 32 128bit VSX registers */
|
|
#define PTRACE_GETVSRREGS 0x1b
|
|
#define PTRACE_SETVSRREGS 0x1c
|
|
|
|
/* Syscall emulation defines */
|
|
#define PTRACE_SYSEMU 0x1d
|
|
#define PTRACE_SYSEMU_SINGLESTEP 0x1e
|
|
|
|
/*
|
|
* Get or set a debug register. The first 16 are DABR registers and the
|
|
* second 16 are IABR registers.
|
|
*/
|
|
#define PTRACE_GET_DEBUGREG 0x19
|
|
#define PTRACE_SET_DEBUGREG 0x1a
|
|
|
|
/* (new) PTRACE requests using the same numbers as x86 and the same
|
|
* argument ordering. Additionally, they support more registers too
|
|
*/
|
|
#define PTRACE_GETREGS 0xc
|
|
#define PTRACE_SETREGS 0xd
|
|
#define PTRACE_GETFPREGS 0xe
|
|
#define PTRACE_SETFPREGS 0xf
|
|
#define PTRACE_GETREGS64 0x16
|
|
#define PTRACE_SETREGS64 0x17
|
|
|
|
/* 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
|
|
|
|
#define PTRACE_SINGLEBLOCK 0x100 /* resume execution until next branch */
|
|
|
|
#define PPC_PTRACE_GETHWDBGINFO 0x89
|
|
#define PPC_PTRACE_SETHWDEBUG 0x88
|
|
#define PPC_PTRACE_DELHWDEBUG 0x87
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
struct ppc_debug_info {
|
|
__u32 version; /* Only version 1 exists to date */
|
|
__u32 num_instruction_bps;
|
|
__u32 num_data_bps;
|
|
__u32 num_condition_regs;
|
|
__u32 data_bp_alignment;
|
|
__u32 sizeof_condition; /* size of the DVC register */
|
|
__u64 features;
|
|
};
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
/*
|
|
* features will have bits indication whether there is support for:
|
|
*/
|
|
#define PPC_DEBUG_FEATURE_INSN_BP_RANGE 0x0000000000000001
|
|
#define PPC_DEBUG_FEATURE_INSN_BP_MASK 0x0000000000000002
|
|
#define PPC_DEBUG_FEATURE_DATA_BP_RANGE 0x0000000000000004
|
|
#define PPC_DEBUG_FEATURE_DATA_BP_MASK 0x0000000000000008
|
|
#define PPC_DEBUG_FEATURE_DATA_BP_DAWR 0x0000000000000010
|
|
#define PPC_DEBUG_FEATURE_DATA_BP_ARCH_31 0x0000000000000020
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
struct ppc_hw_breakpoint {
|
|
__u32 version; /* currently, version must be 1 */
|
|
__u32 trigger_type; /* only some combinations allowed */
|
|
__u32 addr_mode; /* address match mode */
|
|
__u32 condition_mode; /* break/watchpoint condition flags */
|
|
__u64 addr; /* break/watchpoint address */
|
|
__u64 addr2; /* range end or mask */
|
|
__u64 condition_value; /* contents of the DVC register */
|
|
};
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
/*
|
|
* Trigger Type
|
|
*/
|
|
#define PPC_BREAKPOINT_TRIGGER_EXECUTE 0x00000001
|
|
#define PPC_BREAKPOINT_TRIGGER_READ 0x00000002
|
|
#define PPC_BREAKPOINT_TRIGGER_WRITE 0x00000004
|
|
#define PPC_BREAKPOINT_TRIGGER_RW \
|
|
(PPC_BREAKPOINT_TRIGGER_READ | PPC_BREAKPOINT_TRIGGER_WRITE)
|
|
|
|
/*
|
|
* Address Mode
|
|
*/
|
|
#define PPC_BREAKPOINT_MODE_EXACT 0x00000000
|
|
#define PPC_BREAKPOINT_MODE_RANGE_INCLUSIVE 0x00000001
|
|
#define PPC_BREAKPOINT_MODE_RANGE_EXCLUSIVE 0x00000002
|
|
#define PPC_BREAKPOINT_MODE_MASK 0x00000003
|
|
|
|
/*
|
|
* Condition Mode
|
|
*/
|
|
#define PPC_BREAKPOINT_CONDITION_MODE 0x00000003
|
|
#define PPC_BREAKPOINT_CONDITION_NONE 0x00000000
|
|
#define PPC_BREAKPOINT_CONDITION_AND 0x00000001
|
|
#define PPC_BREAKPOINT_CONDITION_EXACT PPC_BREAKPOINT_CONDITION_AND
|
|
#define PPC_BREAKPOINT_CONDITION_OR 0x00000002
|
|
#define PPC_BREAKPOINT_CONDITION_AND_OR 0x00000003
|
|
#define PPC_BREAKPOINT_CONDITION_BE_ALL 0x00ff0000
|
|
#define PPC_BREAKPOINT_CONDITION_BE_SHIFT 16
|
|
#define PPC_BREAKPOINT_CONDITION_BE(n) \
|
|
(1<<((n)+PPC_BREAKPOINT_CONDITION_BE_SHIFT))
|
|
|
|
#endif /* _UAPI_ASM_POWERPC_PTRACE_H */
|