1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _PTRACE32_H 3 #define _PTRACE32_H 4 5 #include <asm/ptrace.h> /* needed for NUM_CR_WORDS */ 6 #include "compat_linux.h" /* needed for psw_compat_t */ 7 8 struct compat_per_struct_kernel { 9 __u32 cr9; /* PER control bits */ 10 __u32 cr10; /* PER starting address */ 11 __u32 cr11; /* PER ending address */ 12 __u32 bits; /* Obsolete software bits */ 13 __u32 starting_addr; /* User specified start address */ 14 __u32 ending_addr; /* User specified end address */ 15 __u16 perc_atmid; /* PER trap ATMID */ 16 __u32 address; /* PER trap instruction address */ 17 __u8 access_id; /* PER trap access identification */ 18 }; 19 20 struct compat_user_regs_struct 21 { 22 psw_compat_t psw; 23 u32 gprs[NUM_GPRS]; 24 u32 acrs[NUM_ACRS]; 25 u32 orig_gpr2; 26 /* nb: there's a 4-byte hole here */ 27 s390_fp_regs fp_regs; 28 /* 29 * These per registers are in here so that gdb can modify them 30 * itself as there is no "official" ptrace interface for hardware 31 * watchpoints. This is the way intel does it. 32 */ 33 struct compat_per_struct_kernel per_info; 34 u32 ieee_instruction_pointer; /* obsolete, always 0 */ 35 }; 36 37 struct compat_user { 38 /* We start with the registers, to mimic the way that "memory" 39 is returned from the ptrace(3,...) function. */ 40 struct compat_user_regs_struct regs; 41 /* The rest of this junk is to help gdb figure out what goes where */ 42 u32 u_tsize; /* Text segment size (pages). */ 43 u32 u_dsize; /* Data segment size (pages). */ 44 u32 u_ssize; /* Stack segment size (pages). */ 45 u32 start_code; /* Starting virtual address of text. */ 46 u32 start_stack; /* Starting virtual address of stack area. 47 This is actually the bottom of the stack, 48 the top of the stack is always found in the 49 esp register. */ 50 s32 signal; /* Signal that caused the core dump. */ 51 u32 u_ar0; /* Used by gdb to help find the values for */ 52 /* the registers. */ 53 u32 magic; /* To uniquely identify a core file */ 54 char u_comm[32]; /* User command that was responsible */ 55 }; 56 57 typedef struct 58 { 59 __u32 len; 60 __u32 kernel_addr; 61 __u32 process_addr; 62 } compat_ptrace_area; 63 64 #endif /* _PTRACE32_H */ 65