linux-stable/arch/m68k/include/uapi/asm/ptrace.h
Greg Ungerer 67b660b1f7 m68knommu: add definitions to support elf_fdpic program loader
Add a few required defines to support using the binfmt_elf_fdpic
loader on the m68k architecture. The values are defined to be consistent
with those used on arm and sh which support this too.

The most important m68k specific change is the register initialization.
The pt_reg structure only contains a subset of the architecture general
registers, so we are more limited than to be expected on what can be used.

Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
2022-05-16 13:18:30 +10:00

85 lines
1.9 KiB
C

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_M68K_PTRACE_H
#define _UAPI_M68K_PTRACE_H
#define PT_D1 0
#define PT_D2 1
#define PT_D3 2
#define PT_D4 3
#define PT_D5 4
#define PT_D6 5
#define PT_D7 6
#define PT_A0 7
#define PT_A1 8
#define PT_A2 9
#define PT_A3 10
#define PT_A4 11
#define PT_A5 12
#define PT_A6 13
#define PT_D0 14
#define PT_USP 15
#define PT_ORIG_D0 16
#define PT_SR 17
#define PT_PC 18
#ifndef __ASSEMBLY__
/* this struct defines the way the registers are stored on the
stack during a system call. */
struct pt_regs {
long d1;
long d2;
long d3;
long d4;
long d5;
long a0;
long a1;
long a2;
long d0;
long orig_d0;
long stkadj;
#ifdef CONFIG_COLDFIRE
unsigned format : 4; /* frame format specifier */
unsigned vector : 12; /* vector offset */
unsigned short sr;
unsigned long pc;
#else
unsigned short sr;
unsigned long pc;
unsigned format : 4; /* frame format specifier */
unsigned vector : 12; /* vector offset */
#endif
};
/*
* This is the extended stack used by signal handlers and the context
* switcher: it's pushed after the normal "struct pt_regs".
*/
struct switch_stack {
unsigned long d6;
unsigned long d7;
unsigned long a3;
unsigned long a4;
unsigned long a5;
unsigned long a6;
unsigned long retpc;
};
/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
#define PTRACE_GETREGS 12
#define PTRACE_SETREGS 13
#define PTRACE_GETFPREGS 14
#define PTRACE_SETFPREGS 15
#define PTRACE_GET_THREAD_AREA 25
#define PTRACE_GETFDPIC 31
#define PTRACE_SINGLEBLOCK 33 /* resume execution until next branch */
#define PTRACE_GETFDPIC_EXEC 0
#define PTRACE_GETFDPIC_INTERP 1
#endif /* __ASSEMBLY__ */
#endif /* _UAPI_M68K_PTRACE_H */