diff options
Diffstat (limited to 'arch/sh/kernel/ptrace_32.c')
| -rw-r--r-- | arch/sh/kernel/ptrace_32.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index 90a15d29fee..3d7b209b217 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -101,6 +101,8 @@ static int set_single_step(struct task_struct *tsk, unsigned long addr) attr = bp->attr; attr.bp_addr = addr; + /* reenable breakpoint */ + attr.disabled = false; err = modify_user_hw_breakpoint(bp, &attr); if (unlikely(err)) return err; @@ -115,7 +117,11 @@ void user_enable_single_step(struct task_struct *child) set_tsk_thread_flag(child, TIF_SINGLESTEP); + if (ptrace_get_breakpoints(child) < 0) + return; + set_single_step(child, pc); + ptrace_put_breakpoints(child); } void user_disable_single_step(struct task_struct *child) @@ -392,6 +398,9 @@ long arch_ptrace(struct task_struct *child, long request, tmp = 0; } else { unsigned long index; + ret = init_fpu(child); + if (ret) + break; index = addr - offsetof(struct user, fpu); tmp = ((unsigned long *)child->thread.xstate) [index >> 2]; @@ -423,6 +432,9 @@ long arch_ptrace(struct task_struct *child, long request, else if (addr >= offsetof(struct user, fpu) && addr < offsetof(struct user, u_fpvalid)) { unsigned long index; + ret = init_fpu(child); + if (ret) + break; index = addr - offsetof(struct user, fpu); set_stopped_child_used_math(child); ((unsigned long *)child->thread.xstate) |