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| author | Christoph Hellwig <hch@lst.de> | 2010-03-10 23:22:50 (GMT) |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-12 23:52:38 (GMT) |
| commit | 440e6ca79aebdc274ce4c625a6f42c8bf3c7bc91 (patch) | |
| tree | ff3230d94decd47b67960134a54313706c10bfa5 /arch/arm/kernel/ptrace.h | |
| parent | fd341abba65e3d93fc24c132e4c0278d18b6d2fc (diff) | |
| download | linux-fsl-qoriq-440e6ca79aebdc274ce4c625a6f42c8bf3c7bc91.tar.xz | |
arm: 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 and the single stepping disable only happens if the
tracee process isn't a zombie yet, 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: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/arm/kernel/ptrace.h')
| -rw-r--r-- | arch/arm/kernel/ptrace.h | 14 |
1 files changed, 0 insertions, 14 deletions
diff --git a/arch/arm/kernel/ptrace.h b/arch/arm/kernel/ptrace.h index def3b61..3926605 100644 --- a/arch/arm/kernel/ptrace.h +++ b/arch/arm/kernel/ptrace.h @@ -14,20 +14,6 @@ extern void ptrace_set_bpt(struct task_struct *); extern void ptrace_break(struct task_struct *, struct pt_regs *); /* - * make sure single-step breakpoint is gone. - */ -static inline void single_step_disable(struct task_struct *task) -{ - task->ptrace &= ~PT_SINGLESTEP; - ptrace_cancel_bpt(task); -} - -static inline void single_step_enable(struct task_struct *task) -{ - task->ptrace |= PT_SINGLESTEP; -} - -/* * Send SIGTRAP if we're single-stepping */ static inline void single_step_trap(struct task_struct *task) |