1 #ifndef _PTRACE32_H 2 #define _PTRACE32_H 3 4 #include "compat_linux.h" /* needed for psw_compat_t */ 5 6 typedef struct { 7 __u32 cr[3]; 8 } per_cr_words32; 9 10 typedef struct { 11 __u16 perc_atmid; /* 0x096 */ 12 __u32 address; /* 0x098 */ 13 __u8 access_id; /* 0x0a1 */ 14 } per_lowcore_words32; 15 16 typedef struct { 17 union { 18 per_cr_words32 words; 19 } control_regs; 20 /* 21 * Use these flags instead of setting em_instruction_fetch 22 * directly they are used so that single stepping can be 23 * switched on & off while not affecting other tracing 24 */ 25 unsigned single_step : 1; 26 unsigned instruction_fetch : 1; 27 unsigned : 30; 28 /* 29 * These addresses are copied into cr10 & cr11 if single 30 * stepping is switched off 31 */ 32 __u32 starting_addr; 33 __u32 ending_addr; 34 union { 35 per_lowcore_words32 words; 36 } lowcore; 37 } per_struct32; 38 39 struct user_regs_struct32 40 { 41 psw_compat_t psw; 42 u32 gprs[NUM_GPRS]; 43 u32 acrs[NUM_ACRS]; 44 u32 orig_gpr2; 45 /* nb: there's a 4-byte hole here */ 46 s390_fp_regs fp_regs; 47 /* 48 * These per registers are in here so that gdb can modify them 49 * itself as there is no "official" ptrace interface for hardware 50 * watchpoints. This is the way intel does it. 51 */ 52 per_struct32 per_info; 53 u32 ieee_instruction_pointer; 54 /* Used to give failing instruction back to user for ieee exceptions */ 55 }; 56 57 struct user32 { 58 /* We start with the registers, to mimic the way that "memory" 59 is returned from the ptrace(3,...) function. */ 60 struct user_regs_struct32 regs; /* Where the registers are actually stored */ 61 /* The rest of this junk is to help gdb figure out what goes where */ 62 u32 u_tsize; /* Text segment size (pages). */ 63 u32 u_dsize; /* Data segment size (pages). */ 64 u32 u_ssize; /* Stack segment size (pages). */ 65 u32 start_code; /* Starting virtual address of text. */ 66 u32 start_stack; /* Starting virtual address of stack area. 67 This is actually the bottom of the stack, 68 the top of the stack is always found in the 69 esp register. */ 70 s32 signal; /* Signal that caused the core dump. */ 71 u32 u_ar0; /* Used by gdb to help find the values for */ 72 /* the registers. */ 73 u32 magic; /* To uniquely identify a core file */ 74 char u_comm[32]; /* User command that was responsible */ 75 }; 76 77 typedef struct 78 { 79 __u32 len; 80 __u32 kernel_addr; 81 __u32 process_addr; 82 } ptrace_area_emu31; 83 84 #endif /* _PTRACE32_H */ 85