linux_dsm_epyc7002/arch/s390/kernel/compat_ptrace.h
Martin Schwidefsky 5e9a26928f [S390] ptrace cleanup
Overhaul program event recording and the code dealing with the ptrace
user space interface.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2011-01-05 12:47:31 +01:00

64 lines
2.1 KiB
C

#ifndef _PTRACE32_H
#define _PTRACE32_H
#include <asm/ptrace.h> /* needed for NUM_CR_WORDS */
#include "compat_linux.h" /* needed for psw_compat_t */
struct compat_per_struct_kernel {
__u32 cr9; /* PER control bits */
__u32 cr10; /* PER starting address */
__u32 cr11; /* PER ending address */
__u32 bits; /* Obsolete software bits */
__u32 starting_addr; /* User specified start address */
__u32 ending_addr; /* User specified end address */
__u16 perc_atmid; /* PER trap ATMID */
__u32 address; /* PER trap instruction address */
__u8 access_id; /* PER trap access identification */
};
struct compat_user_regs_struct
{
psw_compat_t psw;
u32 gprs[NUM_GPRS];
u32 acrs[NUM_ACRS];
u32 orig_gpr2;
/* nb: there's a 4-byte hole here */
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.
*/
struct compat_per_struct_kernel per_info;
u32 ieee_instruction_pointer; /* obsolete, always 0 */
};
struct compat_user {
/* We start with the registers, to mimic the way that "memory"
is returned from the ptrace(3,...) function. */
struct compat_user_regs_struct regs;
/* The rest of this junk is to help gdb figure out what goes where */
u32 u_tsize; /* Text segment size (pages). */
u32 u_dsize; /* Data segment size (pages). */
u32 u_ssize; /* Stack segment size (pages). */
u32 start_code; /* Starting virtual address of text. */
u32 start_stack; /* Starting virtual address of stack area.
This is actually the bottom of the stack,
the top of the stack is always found in the
esp register. */
s32 signal; /* Signal that caused the core dump. */
u32 u_ar0; /* Used by gdb to help find the values for */
/* the registers. */
u32 magic; /* To uniquely identify a core file */
char u_comm[32]; /* User command that was responsible */
};
typedef struct
{
__u32 len;
__u32 kernel_addr;
__u32 process_addr;
} compat_ptrace_area;
#endif /* _PTRACE32_H */