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https://github.com/torvalds/linux
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857fb252a1
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>
66 lines
1.4 KiB
C
66 lines
1.4 KiB
C
#ifndef _H8300_PTRACE_H
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#define _H8300_PTRACE_H
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#ifndef __ASSEMBLY__
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#define PT_ER1 0
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#define PT_ER2 1
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#define PT_ER3 2
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#define PT_ER4 3
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#define PT_ER5 4
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#define PT_ER6 5
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#define PT_ER0 6
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#define PT_ORIG_ER0 7
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#define PT_CCR 8
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#define PT_PC 9
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#define PT_USP 10
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#define PT_EXR 12
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/* this struct defines the way the registers are stored on the
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stack during a system call. */
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struct pt_regs {
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long retpc;
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long er4;
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long er5;
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long er6;
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long er3;
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long er2;
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long er1;
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long orig_er0;
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unsigned short ccr;
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long er0;
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long vector;
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#if defined(CONFIG_CPU_H8S)
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unsigned short exr;
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#endif
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unsigned long pc;
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} __attribute__((aligned(2),packed));
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#define PTRACE_GETREGS 12
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#define PTRACE_SETREGS 13
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#ifdef __KERNEL__
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#ifndef PS_S
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#define PS_S (0x10)
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#endif
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#if defined(__H8300H__)
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#define H8300_REGS_NO 11
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#endif
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#if defined(__H8300S__)
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#define H8300_REGS_NO 12
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#endif
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/* Find the stack offset for a register, relative to thread.esp0. */
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#define PT_REG(reg) ((long)&((struct pt_regs *)0)->reg)
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#define arch_has_single_step() (1)
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#define user_mode(regs) (!((regs)->ccr & PS_S))
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#define instruction_pointer(regs) ((regs)->pc)
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#define profile_pc(regs) instruction_pointer(regs)
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extern void show_regs(struct pt_regs *);
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#endif /* __KERNEL__ */
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#endif /* __ASSEMBLY__ */
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#endif /* _H8300_PTRACE_H */
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