| /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ | |
| /* | |
| * S390 version | |
| * Copyright IBM Corp. 1999, 2000 | |
| * Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com) | |
| */ | |
| #ifndef _UAPI_S390_PTRACE_H | |
| #define _UAPI_S390_PTRACE_H | |
| #include <linux/const.h> | |
| /* | |
| * Offsets in the user_regs_struct. They are used for the ptrace | |
| * system call and in entry.S | |
| */ | |
| #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 */ | |
| #define PSW_MASK_PER _AC(0x4000000000000000, UL) | |
| #define PSW_MASK_DAT _AC(0x0400000000000000, UL) | |
| #define PSW_MASK_IO _AC(0x0200000000000000, UL) | |
| #define PSW_MASK_EXT _AC(0x0100000000000000, UL) | |
| #define PSW_MASK_BASE _AC(0x0000000000000000, UL) | |
| #define PSW_MASK_KEY _AC(0x00F0000000000000, UL) | |
| #define PSW_MASK_MCHECK _AC(0x0004000000000000, UL) | |
| #define PSW_MASK_WAIT _AC(0x0002000000000000, UL) | |
| #define PSW_MASK_PSTATE _AC(0x0001000000000000, UL) | |
| #define PSW_MASK_ASC _AC(0x0000C00000000000, UL) | |
| #define PSW_MASK_CC _AC(0x0000300000000000, UL) | |
| #define PSW_MASK_PM _AC(0x00000F0000000000, UL) | |
| #define PSW_MASK_RI _AC(0x0000008000000000, UL) | |
| #define PSW_MASK_EA _AC(0x0000000100000000, UL) | |
| #define PSW_MASK_BA _AC(0x0000000080000000, UL) | |
| #define PSW_MASK_USER _AC(0x0000FF0180000000, UL) | |
| #define PSW_ADDR_AMODE _AC(0x0000000000000000, UL) | |
| #define PSW_ADDR_INSN _AC(0xFFFFFFFFFFFFFFFF, UL) | |
| #define PSW_ASC_PRIMARY _AC(0x0000000000000000, UL) | |
| #define PSW_ASC_ACCREG _AC(0x0000400000000000, UL) | |
| #define PSW_ASC_SECONDARY _AC(0x0000800000000000, UL) | |
| #define PSW_ASC_HOME _AC(0x0000C00000000000, UL) | |
| #define NUM_GPRS 16 | |
| #define NUM_FPRS 16 | |
| #define NUM_CRS 16 | |
| #define NUM_ACRS 16 | |
| #define NUM_CR_WORDS 3 | |
| #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 | |
| #define PTRACE_SYSEMU 31 | |
| #define PTRACE_SYSEMU_SINGLESTEP 32 | |
| #ifndef __ASSEMBLER__ | |
| #include <linux/stddef.h> | |
| #include <linux/types.h> | |
| typedef union { | |
| float f; | |
| double d; | |
| __u64 ui; | |
| struct | |
| { | |
| __u32 hi; | |
| __u32 lo; | |
| } fp; | |
| } freg_t; | |
| typedef struct { | |
| __u32 fpc; | |
| __u32 pad; | |
| 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 | |
| /* this typedef defines how a Program Status Word looks like */ | |
| typedef struct { | |
| unsigned long mask; | |
| unsigned long addr; | |
| } __attribute__ ((aligned(8))) psw_t; | |
| /* | |
| * 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; | |
| /* | |
| * The user_pt_regs structure exports the beginning of | |
| * the in-kernel pt_regs structure to user space. | |
| */ | |
| typedef struct { | |
| unsigned long args[1]; | |
| psw_t psw; | |
| unsigned long gprs[NUM_GPRS]; | |
| } user_pt_regs; | |
| /* | |
| * Now for the user space program event recording (trace) definitions. | |
| * The following structures are used only for the ptrace interface, don't | |
| * touch or even look at it if you don't want to modify the user-space | |
| * ptrace interface. In particular stay away from it for in-kernel PER. | |
| */ | |
| typedef struct { | |
| unsigned long cr[NUM_CR_WORDS]; | |
| } per_cr_words; | |
| #define PER_EM_MASK 0xE8000000UL | |
| typedef struct { | |
| unsigned : 32; | |
| 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; | |
| /* | |
| * The single_step and instruction_fetch bits are obsolete, | |
| * the kernel always sets them to zero. To enable single | |
| * stepping use ptrace(PTRACE_SINGLESTEP) instead. | |
| */ | |
| 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 | |
| #define PTRACE_GET_LAST_BREAK 0x5006 | |
| #define PTRACE_PEEK_SYSTEM_CALL 0x5007 | |
| #define PTRACE_POKE_SYSTEM_CALL 0x5008 | |
| #define PTRACE_ENABLE_TE 0x5009 | |
| #define PTRACE_DISABLE_TE 0x5010 | |
| #define PTRACE_TE_ABORT_RAND 0x5011 | |
| /* | |
| * The numbers chosen here are somewhat arbitrary but absolutely MUST | |
| * not overlap with any of the number assigned in <linux/ptrace.h>. | |
| */ | |
| #define PTRACE_SINGLEBLOCK 12 /* resume execution until next branch */ | |
| /* | |
| * 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; /* obsolete, always 0 */ | |
| }; | |
| #endif /* __ASSEMBLER__ */ | |
| #endif /* _UAPI_S390_PTRACE_H */ |