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| author | Christoph Hellwig <hch@lst.de> | 2010-03-10 15:22:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-12 15:52:38 -0800 |
| commit | 857fb252a1858ccded2e31ee98c6c0ab79c07999 (patch) | |
| tree | 6ba59a7170344b952758b019801d41771e872457 /arch/h8300/platform | |
| parent | 1d8393171b1f6c30a889fd7cb16fc193f689923c (diff) | |
| download | kernel_samsung_smdk4412-857fb252a1858ccded2e31ee98c6c0ab79c07999.zip kernel_samsung_smdk4412-857fb252a1858ccded2e31ee98c6c0ab79c07999.tar.gz kernel_samsung_smdk4412-857fb252a1858ccded2e31ee98c6c0ab79c07999.tar.bz2 | |
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>
Diffstat (limited to 'arch/h8300/platform')
| -rw-r--r-- | arch/h8300/platform/h8300h/ptrace_h8300h.c | 6 | ||||
| -rw-r--r-- | arch/h8300/platform/h8s/ptrace_h8s.c | 4 |
2 files changed, 5 insertions, 5 deletions
diff --git a/arch/h8300/platform/h8300h/ptrace_h8300h.c b/arch/h8300/platform/h8300h/ptrace_h8300h.c index 746b1ae..4f1ed02 100644 --- a/arch/h8300/platform/h8300h/ptrace_h8300h.c +++ b/arch/h8300/platform/h8300h/ptrace_h8300h.c @@ -60,7 +60,7 @@ int h8300_put_reg(struct task_struct *task, int regno, unsigned long data) } /* disable singlestep */ -void h8300_disable_trace(struct task_struct *child) +void user_disable_single_step(struct task_struct *child) { if((long)child->thread.breakinfo.addr != -1L) { *child->thread.breakinfo.addr = child->thread.breakinfo.inst; @@ -264,7 +264,7 @@ static unsigned short *getnextpc(struct task_struct *child, unsigned short *pc) /* Set breakpoint(s) to simulate a single step from the current PC. */ -void h8300_enable_trace(struct task_struct *child) +void user_enable_single_step(struct task_struct *child) { unsigned short *nextpc; nextpc = getnextpc(child,(unsigned short *)h8300_get_reg(child, PT_PC)); @@ -276,7 +276,7 @@ void h8300_enable_trace(struct task_struct *child) asmlinkage void trace_trap(unsigned long bp) { if ((unsigned long)current->thread.breakinfo.addr == bp) { - h8300_disable_trace(current); + user_disable_single_step(current); force_sig(SIGTRAP,current); } else force_sig(SIGILL,current); diff --git a/arch/h8300/platform/h8s/ptrace_h8s.c b/arch/h8300/platform/h8s/ptrace_h8s.c index e8cd46f..c058ab1 100644 --- a/arch/h8300/platform/h8s/ptrace_h8s.c +++ b/arch/h8300/platform/h8s/ptrace_h8s.c @@ -65,13 +65,13 @@ int h8300_put_reg(struct task_struct *task, int regno, unsigned long data) } /* disable singlestep */ -void h8300_disable_trace(struct task_struct *child) +void user_disable_single_step(struct task_struct *child) { *(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) &= ~EXR_TRACE; } /* enable singlestep */ -void h8300_enable_trace(struct task_struct *child) +void user_enable_single_step(struct task_struct *child) { *(unsigned short *)(child->thread.esp0 + h8300_register_offset[PT_EXR]) |= EXR_TRACE; } |