| /* 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 |
| */ |
| #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__ */ |
| |
| #ifndef __s390x__ |
| |
| #define PSW_MASK_PER _AC(0x40000000, UL) |
| #define PSW_MASK_DAT _AC(0x04000000, UL) |
| #define PSW_MASK_IO _AC(0x02000000, UL) |
| #define PSW_MASK_EXT _AC(0x01000000, UL) |
| #define PSW_MASK_KEY _AC(0x00F00000, UL) |
| #define PSW_MASK_BASE _AC(0x00080000, UL) /* always one */ |
| #define PSW_MASK_MCHECK _AC(0x00040000, UL) |
| #define PSW_MASK_WAIT _AC(0x00020000, UL) |
| #define PSW_MASK_PSTATE _AC(0x00010000, UL) |
| #define PSW_MASK_ASC _AC(0x0000C000, UL) |
| #define PSW_MASK_CC _AC(0x00003000, UL) |
| #define PSW_MASK_PM _AC(0x00000F00, UL) |
| #define PSW_MASK_RI _AC(0x00000000, UL) |
| #define PSW_MASK_EA _AC(0x00000000, UL) |
| #define PSW_MASK_BA _AC(0x00000000, UL) |
| |
| #define PSW_MASK_USER _AC(0x0000FF00, UL) |
| |
| #define PSW_ADDR_AMODE _AC(0x80000000, UL) |
| #define PSW_ADDR_INSN _AC(0x7FFFFFFF, UL) |
| |
| #define PSW_ASC_PRIMARY _AC(0x00000000, UL) |
| #define PSW_ASC_ACCREG _AC(0x00004000, UL) |
| #define PSW_ASC_SECONDARY _AC(0x00008000, UL) |
| #define PSW_ASC_HOME _AC(0x0000C000, UL) |
| |
| #else /* __s390x__ */ |
| |
| #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) |
| |
| #endif /* __s390x__ */ |
| |
| #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 __ASSEMBLY__ |
| #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 { |
| #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; |
| /* |
| * 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 /* __ASSEMBLY__ */ |
| |
| #endif /* _UAPI_S390_PTRACE_H */ |
