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FRV: Implement new-style ptrace

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Implement the new-style ptrace for FRV, including adding appropriate
tracehooks.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
David Howells
2009-06-11 13:05:24 +01:00
committed by Linus Torvalds
parent 24ceb7e8a6
commit 4a3b989322
7 changed files with 365 additions and 162 deletions
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11
arch/frv/include/asm/ptrace.h
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@@ -65,6 +65,8 @@
#ifdef __KERNEL__
#ifndef __ASSEMBLY__
struct task_struct;
/*
* we dedicate GR28 to keeping a pointer to the current exception frame
* - gr28 is destroyed on entry to the kernel from userspace
@@ -73,11 +75,18 @@ register struct pt_regs *__frame asm("gr28");
#define user_mode(regs) (!((regs)->psr & PSR_S))
#define instruction_pointer(regs) ((regs)->pc)
#define user_stack_pointer(regs) ((regs)->sp)
extern unsigned long user_stack(const struct pt_regs *);
extern void show_regs(struct pt_regs *);
#define profile_pc(regs) ((regs)->pc)
#endif
#define task_pt_regs(task) ((task)->thread.frame0)
#define arch_has_single_step() (1)
extern void user_enable_single_step(struct task_struct *);
extern void user_disable_single_step(struct task_struct *);
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
#endif /* _ASM_PTRACE_H */