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author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-09 09:14:38 +0300 |
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committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-12-09 09:14:38 +0300 |
commit | bcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71 (patch) | |
tree | 2f6dffd2d3e4dd67355a224de7e7a960335a92fd /arch/m68knommu/kernel/ptrace.c | |
parent | 11c34c7deaeeebcee342cbc35e1bb2a6711b2431 (diff) | |
parent | 3ff6a468b45b5dfeb0e903e56f4eb27d34b2437c (diff) | |
download | linux-bcd6acd51f3d4d1ada201e9bc5c40a31d6d80c71.tar.xz |
Merge commit 'origin/master' into next
Conflicts:
include/linux/kvm.h
Diffstat (limited to 'arch/m68knommu/kernel/ptrace.c')
-rw-r--r-- | arch/m68knommu/kernel/ptrace.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/arch/m68knommu/kernel/ptrace.c b/arch/m68knommu/kernel/ptrace.c index ef70ca070ce2..4d3828959fb0 100644 --- a/arch/m68knommu/kernel/ptrace.c +++ b/arch/m68knommu/kernel/ptrace.c @@ -86,6 +86,20 @@ static inline int put_reg(struct task_struct *task, int regno, return 0; } +void user_enable_single_step(struct task_struct *task) +{ + unsigned long srflags; + srflags = get_reg(task, PT_SR) | (TRACE_BITS << 16); + put_reg(task, PT_SR, srflags); +} + +void user_disable_single_step(struct task_struct *task) +{ + unsigned long srflags; + srflags = get_reg(task, PT_SR) & ~(TRACE_BITS << 16); + put_reg(task, PT_SR, srflags); +} + /* * Called by kernel/ptrace.c when detaching.. * @@ -93,10 +107,8 @@ static inline int put_reg(struct task_struct *task, int regno, */ void ptrace_disable(struct task_struct *child) { - unsigned long tmp; /* make sure the single step bit is not set. */ - tmp = get_reg(child, PT_SR) & ~(TRACE_BITS << 16); - put_reg(child, PT_SR, tmp); + user_disable_single_step(child); } long arch_ptrace(struct task_struct *child, long request, long addr, long data) |