linux/arch/h8300/include/asm/ptrace.h
Christoph Hellwig 857fb252a1 h8300: use generic ptrace_resume code
Use the generic ptrace_resume code for PTRACE_SYSCALL, PTRACE_CONT,
PTRACE_KILL and PTRACE_SINGLESTEP.  This implies defining
arch_has_single_step in <asm/ptrace.h> and implementing the
user_enable_single_step and user_disable_single_step functions, which also
causes the breakpoint information to be cleared on fork, which could be
considered a bug fix.

Also the TIF_SYSCALL_TRACE thread flag is now cleared on PTRACE_KILL which
it previously wasn't which is consistent with all architectures using the
modern ptrace code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2010-03-12 15:52:38 -08:00

67 lines
1.4 KiB
C

#ifndef _H8300_PTRACE_H
#define _H8300_PTRACE_H
#ifndef __ASSEMBLY__
#define PT_ER1 0
#define PT_ER2 1
#define PT_ER3 2
#define PT_ER4 3
#define PT_ER5 4
#define PT_ER6 5
#define PT_ER0 6
#define PT_ORIG_ER0 7
#define PT_CCR 8
#define PT_PC 9
#define PT_USP 10
#define PT_EXR 12
/* this struct defines the way the registers are stored on the
stack during a system call. */
struct pt_regs {
long retpc;
long er4;
long er5;
long er6;
long er3;
long er2;
long er1;
long orig_er0;
unsigned short ccr;
long er0;
long vector;
#if defined(CONFIG_CPU_H8S)
unsigned short exr;
#endif
unsigned long pc;
} __attribute__((aligned(2),packed));
#define PTRACE_GETREGS 12
#define PTRACE_SETREGS 13
#ifdef __KERNEL__
#ifndef PS_S
#define PS_S (0x10)
#endif
#if defined(__H8300H__)
#define H8300_REGS_NO 11
#endif
#if defined(__H8300S__)
#define H8300_REGS_NO 12
#endif
/* Find the stack offset for a register, relative to thread.esp0. */
#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg)
#define arch_has_single_step() (1)
#define user_mode(regs) (!((regs)->ccr & PS_S))
#define instruction_pointer(regs) ((regs)->pc)
#define profile_pc(regs) instruction_pointer(regs)
extern void show_regs(struct pt_regs *);
#endif /* __KERNEL__ */
#endif /* __ASSEMBLY__ */
#endif /* _H8300_PTRACE_H */