476 lines
12 KiB
C
476 lines
12 KiB
C
/*
|
|
* include/asm-s390/ptrace.h
|
|
*
|
|
* S390 version
|
|
* Copyright (C) 1999,2000 IBM Deutschland Entwicklung GmbH, IBM Corporation
|
|
* Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
|
|
*/
|
|
|
|
#ifndef _S390_PTRACE_H
|
|
#define _S390_PTRACE_H
|
|
|
|
/*
|
|
* Offsets in the user_regs_struct. They are used for the ptrace
|
|
* system call and in entry.S
|
|
*/
|
|
#ifndef __s390x__
|
|
|
|
#define PT_PSWMASK 0x00
|
|
#define PT_PSWADDR 0x04
|
|
#define PT_GPR0 0x08
|
|
#define PT_GPR1 0x0C
|
|
#define PT_GPR2 0x10
|
|
#define PT_GPR3 0x14
|
|
#define PT_GPR4 0x18
|
|
#define PT_GPR5 0x1C
|
|
#define PT_GPR6 0x20
|
|
#define PT_GPR7 0x24
|
|
#define PT_GPR8 0x28
|
|
#define PT_GPR9 0x2C
|
|
#define PT_GPR10 0x30
|
|
#define PT_GPR11 0x34
|
|
#define PT_GPR12 0x38
|
|
#define PT_GPR13 0x3C
|
|
#define PT_GPR14 0x40
|
|
#define PT_GPR15 0x44
|
|
#define PT_ACR0 0x48
|
|
#define PT_ACR1 0x4C
|
|
#define PT_ACR2 0x50
|
|
#define PT_ACR3 0x54
|
|
#define PT_ACR4 0x58
|
|
#define PT_ACR5 0x5C
|
|
#define PT_ACR6 0x60
|
|
#define PT_ACR7 0x64
|
|
#define PT_ACR8 0x68
|
|
#define PT_ACR9 0x6C
|
|
#define PT_ACR10 0x70
|
|
#define PT_ACR11 0x74
|
|
#define PT_ACR12 0x78
|
|
#define PT_ACR13 0x7C
|
|
#define PT_ACR14 0x80
|
|
#define PT_ACR15 0x84
|
|
#define PT_ORIGGPR2 0x88
|
|
#define PT_FPC 0x90
|
|
/*
|
|
* A nasty fact of life that the ptrace api
|
|
* only supports passing of longs.
|
|
*/
|
|
#define PT_FPR0_HI 0x98
|
|
#define PT_FPR0_LO 0x9C
|
|
#define PT_FPR1_HI 0xA0
|
|
#define PT_FPR1_LO 0xA4
|
|
#define PT_FPR2_HI 0xA8
|
|
#define PT_FPR2_LO 0xAC
|
|
#define PT_FPR3_HI 0xB0
|
|
#define PT_FPR3_LO 0xB4
|
|
#define PT_FPR4_HI 0xB8
|
|
#define PT_FPR4_LO 0xBC
|
|
#define PT_FPR5_HI 0xC0
|
|
#define PT_FPR5_LO 0xC4
|
|
#define PT_FPR6_HI 0xC8
|
|
#define PT_FPR6_LO 0xCC
|
|
#define PT_FPR7_HI 0xD0
|
|
#define PT_FPR7_LO 0xD4
|
|
#define PT_FPR8_HI 0xD8
|
|
#define PT_FPR8_LO 0XDC
|
|
#define PT_FPR9_HI 0xE0
|
|
#define PT_FPR9_LO 0xE4
|
|
#define PT_FPR10_HI 0xE8
|
|
#define PT_FPR10_LO 0xEC
|
|
#define PT_FPR11_HI 0xF0
|
|
#define PT_FPR11_LO 0xF4
|
|
#define PT_FPR12_HI 0xF8
|
|
#define PT_FPR12_LO 0xFC
|
|
#define PT_FPR13_HI 0x100
|
|
#define PT_FPR13_LO 0x104
|
|
#define PT_FPR14_HI 0x108
|
|
#define PT_FPR14_LO 0x10C
|
|
#define PT_FPR15_HI 0x110
|
|
#define PT_FPR15_LO 0x114
|
|
#define PT_CR_9 0x118
|
|
#define PT_CR_10 0x11C
|
|
#define PT_CR_11 0x120
|
|
#define PT_IEEE_IP 0x13C
|
|
#define PT_LASTOFF PT_IEEE_IP
|
|
#define PT_ENDREGS 0x140-1
|
|
|
|
#define GPR_SIZE 4
|
|
#define CR_SIZE 4
|
|
|
|
#define STACK_FRAME_OVERHEAD 96 /* size of minimum stack frame */
|
|
|
|
#else /* __s390x__ */
|
|
|
|
#define PT_PSWMASK 0x00
|
|
#define PT_PSWADDR 0x08
|
|
#define PT_GPR0 0x10
|
|
#define PT_GPR1 0x18
|
|
#define PT_GPR2 0x20
|
|
#define PT_GPR3 0x28
|
|
#define PT_GPR4 0x30
|
|
#define PT_GPR5 0x38
|
|
#define PT_GPR6 0x40
|
|
#define PT_GPR7 0x48
|
|
#define PT_GPR8 0x50
|
|
#define PT_GPR9 0x58
|
|
#define PT_GPR10 0x60
|
|
#define PT_GPR11 0x68
|
|
#define PT_GPR12 0x70
|
|
#define PT_GPR13 0x78
|
|
#define PT_GPR14 0x80
|
|
#define PT_GPR15 0x88
|
|
#define PT_ACR0 0x90
|
|
#define PT_ACR1 0x94
|
|
#define PT_ACR2 0x98
|
|
#define PT_ACR3 0x9C
|
|
#define PT_ACR4 0xA0
|
|
#define PT_ACR5 0xA4
|
|
#define PT_ACR6 0xA8
|
|
#define PT_ACR7 0xAC
|
|
#define PT_ACR8 0xB0
|
|
#define PT_ACR9 0xB4
|
|
#define PT_ACR10 0xB8
|
|
#define PT_ACR11 0xBC
|
|
#define PT_ACR12 0xC0
|
|
#define PT_ACR13 0xC4
|
|
#define PT_ACR14 0xC8
|
|
#define PT_ACR15 0xCC
|
|
#define PT_ORIGGPR2 0xD0
|
|
#define PT_FPC 0xD8
|
|
#define PT_FPR0 0xE0
|
|
#define PT_FPR1 0xE8
|
|
#define PT_FPR2 0xF0
|
|
#define PT_FPR3 0xF8
|
|
#define PT_FPR4 0x100
|
|
#define PT_FPR5 0x108
|
|
#define PT_FPR6 0x110
|
|
#define PT_FPR7 0x118
|
|
#define PT_FPR8 0x120
|
|
#define PT_FPR9 0x128
|
|
#define PT_FPR10 0x130
|
|
#define PT_FPR11 0x138
|
|
#define PT_FPR12 0x140
|
|
#define PT_FPR13 0x148
|
|
#define PT_FPR14 0x150
|
|
#define PT_FPR15 0x158
|
|
#define PT_CR_9 0x160
|
|
#define PT_CR_10 0x168
|
|
#define PT_CR_11 0x170
|
|
#define PT_IEEE_IP 0x1A8
|
|
#define PT_LASTOFF PT_IEEE_IP
|
|
#define PT_ENDREGS 0x1B0-1
|
|
|
|
#define GPR_SIZE 8
|
|
#define CR_SIZE 8
|
|
|
|
#define STACK_FRAME_OVERHEAD 160 /* size of minimum stack frame */
|
|
|
|
#endif /* __s390x__ */
|
|
|
|
#define NUM_GPRS 16
|
|
#define NUM_FPRS 16
|
|
#define NUM_CRS 16
|
|
#define NUM_ACRS 16
|
|
|
|
#define FPR_SIZE 8
|
|
#define FPC_SIZE 4
|
|
#define FPC_PAD_SIZE 4 /* gcc insists on aligning the fpregs */
|
|
#define ACR_SIZE 4
|
|
|
|
|
|
#define PTRACE_OLDSETOPTIONS 21
|
|
|
|
#ifndef __ASSEMBLY__
|
|
#include <linux/config.h>
|
|
#include <linux/stddef.h>
|
|
#include <linux/types.h>
|
|
#include <asm/setup.h>
|
|
|
|
typedef union
|
|
{
|
|
float f;
|
|
double d;
|
|
__u64 ui;
|
|
struct
|
|
{
|
|
__u32 hi;
|
|
__u32 lo;
|
|
} fp;
|
|
} freg_t;
|
|
|
|
typedef struct
|
|
{
|
|
__u32 fpc;
|
|
freg_t fprs[NUM_FPRS];
|
|
} s390_fp_regs;
|
|
|
|
#define FPC_EXCEPTION_MASK 0xF8000000
|
|
#define FPC_FLAGS_MASK 0x00F80000
|
|
#define FPC_DXC_MASK 0x0000FF00
|
|
#define FPC_RM_MASK 0x00000003
|
|
#define FPC_VALID_MASK 0xF8F8FF03
|
|
|
|
/* this typedef defines how a Program Status Word looks like */
|
|
typedef struct
|
|
{
|
|
unsigned long mask;
|
|
unsigned long addr;
|
|
} __attribute__ ((aligned(8))) psw_t;
|
|
|
|
#ifndef __s390x__
|
|
|
|
#define PSW_MASK_PER 0x40000000UL
|
|
#define PSW_MASK_DAT 0x04000000UL
|
|
#define PSW_MASK_IO 0x02000000UL
|
|
#define PSW_MASK_EXT 0x01000000UL
|
|
#define PSW_MASK_KEY 0x00F00000UL
|
|
#define PSW_MASK_MCHECK 0x00040000UL
|
|
#define PSW_MASK_WAIT 0x00020000UL
|
|
#define PSW_MASK_PSTATE 0x00010000UL
|
|
#define PSW_MASK_ASC 0x0000C000UL
|
|
#define PSW_MASK_CC 0x00003000UL
|
|
#define PSW_MASK_PM 0x00000F00UL
|
|
|
|
#define PSW_ADDR_AMODE 0x80000000UL
|
|
#define PSW_ADDR_INSN 0x7FFFFFFFUL
|
|
|
|
#define PSW_BASE_BITS 0x00080000UL
|
|
|
|
#define PSW_ASC_PRIMARY 0x00000000UL
|
|
#define PSW_ASC_ACCREG 0x00004000UL
|
|
#define PSW_ASC_SECONDARY 0x00008000UL
|
|
#define PSW_ASC_HOME 0x0000C000UL
|
|
|
|
#else /* __s390x__ */
|
|
|
|
#define PSW_MASK_PER 0x4000000000000000UL
|
|
#define PSW_MASK_DAT 0x0400000000000000UL
|
|
#define PSW_MASK_IO 0x0200000000000000UL
|
|
#define PSW_MASK_EXT 0x0100000000000000UL
|
|
#define PSW_MASK_KEY 0x00F0000000000000UL
|
|
#define PSW_MASK_MCHECK 0x0004000000000000UL
|
|
#define PSW_MASK_WAIT 0x0002000000000000UL
|
|
#define PSW_MASK_PSTATE 0x0001000000000000UL
|
|
#define PSW_MASK_ASC 0x0000C00000000000UL
|
|
#define PSW_MASK_CC 0x0000300000000000UL
|
|
#define PSW_MASK_PM 0x00000F0000000000UL
|
|
|
|
#define PSW_ADDR_AMODE 0x0000000000000000UL
|
|
#define PSW_ADDR_INSN 0xFFFFFFFFFFFFFFFFUL
|
|
|
|
#define PSW_BASE_BITS 0x0000000180000000UL
|
|
#define PSW_BASE32_BITS 0x0000000080000000UL
|
|
|
|
#define PSW_ASC_PRIMARY 0x0000000000000000UL
|
|
#define PSW_ASC_ACCREG 0x0000400000000000UL
|
|
#define PSW_ASC_SECONDARY 0x0000800000000000UL
|
|
#define PSW_ASC_HOME 0x0000C00000000000UL
|
|
|
|
#define PSW_USER32_BITS (PSW_BASE32_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
|
|
PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
|
|
PSW_MASK_PSTATE)
|
|
|
|
#endif /* __s390x__ */
|
|
|
|
#define PSW_KERNEL_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_PRIMARY)
|
|
#define PSW_USER_BITS (PSW_BASE_BITS | PSW_MASK_DAT | PSW_ASC_HOME | \
|
|
PSW_MASK_IO | PSW_MASK_EXT | PSW_MASK_MCHECK | \
|
|
PSW_MASK_PSTATE)
|
|
|
|
/* This macro merges a NEW PSW mask specified by the user into
|
|
the currently active PSW mask CURRENT, modifying only those
|
|
bits in CURRENT that the user may be allowed to change: this
|
|
is the condition code and the program mask bits. */
|
|
#define PSW_MASK_MERGE(CURRENT,NEW) \
|
|
(((CURRENT) & ~(PSW_MASK_CC|PSW_MASK_PM)) | \
|
|
((NEW) & (PSW_MASK_CC|PSW_MASK_PM)))
|
|
|
|
/*
|
|
* The s390_regs structure is used to define the elf_gregset_t.
|
|
*/
|
|
typedef struct
|
|
{
|
|
psw_t psw;
|
|
unsigned long gprs[NUM_GPRS];
|
|
unsigned int acrs[NUM_ACRS];
|
|
unsigned long orig_gpr2;
|
|
} s390_regs;
|
|
|
|
#ifdef __KERNEL__
|
|
/*
|
|
* The pt_regs struct defines the way the registers are stored on
|
|
* the stack during a system call.
|
|
*/
|
|
struct pt_regs
|
|
{
|
|
unsigned long args[1];
|
|
psw_t psw;
|
|
unsigned long gprs[NUM_GPRS];
|
|
unsigned long orig_gpr2;
|
|
unsigned short ilc;
|
|
unsigned short trap;
|
|
};
|
|
#endif
|
|
|
|
/*
|
|
* Now for the program event recording (trace) definitions.
|
|
*/
|
|
typedef struct
|
|
{
|
|
unsigned long cr[3];
|
|
} per_cr_words;
|
|
|
|
#define PER_EM_MASK 0xE8000000UL
|
|
|
|
typedef struct
|
|
{
|
|
#ifdef __s390x__
|
|
unsigned : 32;
|
|
#endif /* __s390x__ */
|
|
unsigned em_branching : 1;
|
|
unsigned em_instruction_fetch : 1;
|
|
/*
|
|
* Switching on storage alteration automatically fixes
|
|
* the storage alteration event bit in the users std.
|
|
*/
|
|
unsigned em_storage_alteration : 1;
|
|
unsigned em_gpr_alt_unused : 1;
|
|
unsigned em_store_real_address : 1;
|
|
unsigned : 3;
|
|
unsigned branch_addr_ctl : 1;
|
|
unsigned : 1;
|
|
unsigned storage_alt_space_ctl : 1;
|
|
unsigned : 21;
|
|
unsigned long starting_addr;
|
|
unsigned long ending_addr;
|
|
} per_cr_bits;
|
|
|
|
typedef struct
|
|
{
|
|
unsigned short perc_atmid;
|
|
unsigned long address;
|
|
unsigned char access_id;
|
|
} per_lowcore_words;
|
|
|
|
typedef struct
|
|
{
|
|
unsigned perc_branching : 1;
|
|
unsigned perc_instruction_fetch : 1;
|
|
unsigned perc_storage_alteration : 1;
|
|
unsigned perc_gpr_alt_unused : 1;
|
|
unsigned perc_store_real_address : 1;
|
|
unsigned : 3;
|
|
unsigned atmid_psw_bit_31 : 1;
|
|
unsigned atmid_validity_bit : 1;
|
|
unsigned atmid_psw_bit_32 : 1;
|
|
unsigned atmid_psw_bit_5 : 1;
|
|
unsigned atmid_psw_bit_16 : 1;
|
|
unsigned atmid_psw_bit_17 : 1;
|
|
unsigned si : 2;
|
|
unsigned long address;
|
|
unsigned : 4;
|
|
unsigned access_id : 4;
|
|
} per_lowcore_bits;
|
|
|
|
typedef struct
|
|
{
|
|
union {
|
|
per_cr_words words;
|
|
per_cr_bits bits;
|
|
} control_regs;
|
|
/*
|
|
* Use these flags instead of setting em_instruction_fetch
|
|
* directly they are used so that single stepping can be
|
|
* switched on & off while not affecting other tracing
|
|
*/
|
|
unsigned single_step : 1;
|
|
unsigned instruction_fetch : 1;
|
|
unsigned : 30;
|
|
/*
|
|
* These addresses are copied into cr10 & cr11 if single
|
|
* stepping is switched off
|
|
*/
|
|
unsigned long starting_addr;
|
|
unsigned long ending_addr;
|
|
union {
|
|
per_lowcore_words words;
|
|
per_lowcore_bits bits;
|
|
} lowcore;
|
|
} per_struct;
|
|
|
|
typedef struct
|
|
{
|
|
unsigned int len;
|
|
unsigned long kernel_addr;
|
|
unsigned long process_addr;
|
|
} ptrace_area;
|
|
|
|
/*
|
|
* S/390 specific non posix ptrace requests. I chose unusual values so
|
|
* they are unlikely to clash with future ptrace definitions.
|
|
*/
|
|
#define PTRACE_PEEKUSR_AREA 0x5000
|
|
#define PTRACE_POKEUSR_AREA 0x5001
|
|
#define PTRACE_PEEKTEXT_AREA 0x5002
|
|
#define PTRACE_PEEKDATA_AREA 0x5003
|
|
#define PTRACE_POKETEXT_AREA 0x5004
|
|
#define PTRACE_POKEDATA_AREA 0x5005
|
|
|
|
/*
|
|
* PT_PROT definition is loosely based on hppa bsd definition in
|
|
* gdb/hppab-nat.c
|
|
*/
|
|
#define PTRACE_PROT 21
|
|
|
|
typedef enum
|
|
{
|
|
ptprot_set_access_watchpoint,
|
|
ptprot_set_write_watchpoint,
|
|
ptprot_disable_watchpoint
|
|
} ptprot_flags;
|
|
|
|
typedef struct
|
|
{
|
|
unsigned long lowaddr;
|
|
unsigned long hiaddr;
|
|
ptprot_flags prot;
|
|
} ptprot_area;
|
|
|
|
/* Sequence of bytes for breakpoint illegal instruction. */
|
|
#define S390_BREAKPOINT {0x0,0x1}
|
|
#define S390_BREAKPOINT_U16 ((__u16)0x0001)
|
|
#define S390_SYSCALL_OPCODE ((__u16)0x0a00)
|
|
#define S390_SYSCALL_SIZE 2
|
|
|
|
/*
|
|
* The user_regs_struct defines the way the user registers are
|
|
* store on the stack for signal handling.
|
|
*/
|
|
struct user_regs_struct
|
|
{
|
|
psw_t psw;
|
|
unsigned long gprs[NUM_GPRS];
|
|
unsigned int acrs[NUM_ACRS];
|
|
unsigned long orig_gpr2;
|
|
s390_fp_regs fp_regs;
|
|
/*
|
|
* These per registers are in here so that gdb can modify them
|
|
* itself as there is no "official" ptrace interface for hardware
|
|
* watchpoints. This is the way intel does it.
|
|
*/
|
|
per_struct per_info;
|
|
unsigned long ieee_instruction_pointer;
|
|
/* Used to give failing instruction back to user for ieee exceptions */
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
#define user_mode(regs) (((regs)->psw.mask & PSW_MASK_PSTATE) != 0)
|
|
#define instruction_pointer(regs) ((regs)->psw.addr & PSW_ADDR_INSN)
|
|
#define profile_pc(regs) instruction_pointer(regs)
|
|
extern void show_regs(struct pt_regs * regs);
|
|
#endif
|
|
|
|
#endif /* __ASSEMBLY__ */
|
|
|
|
#endif /* _S390_PTRACE_H */
|