diff options
Diffstat (limited to 'arch/x86_64/ia32/ptrace32.c')
| -rw-r--r-- | arch/x86_64/ia32/ptrace32.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/x86_64/ia32/ptrace32.c b/arch/x86_64/ia32/ptrace32.c index 659c0722f6b..d18198ed636 100644 --- a/arch/x86_64/ia32/ptrace32.c +++ b/arch/x86_64/ia32/ptrace32.c @@ -117,6 +117,10 @@ static int putreg32(struct task_struct *child, unsigned regno, u32 val) if ((0x5454 >> ((val >> (16 + 4*i)) & 0xf)) & 1) return -EIO; child->thread.debugreg7 = val; + if (val) + set_tsk_thread_flag(child, TIF_DEBUG); + else + clear_tsk_thread_flag(child, TIF_DEBUG); break; default: @@ -371,8 +375,10 @@ asmlinkage long sys32_ptrace(long request, u32 pid, u32 addr, u32 data) ret = -EIO; if (!access_ok(VERIFY_READ, u, sizeof(*u))) break; - /* no checking to be bug-to-bug compatible with i386 */ - __copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u)); + /* no checking to be bug-to-bug compatible with i386. */ + /* but silence warning */ + if (__copy_from_user(&child->thread.i387.fxsave, u, sizeof(*u))) + ; set_stopped_child_used_math(child); child->thread.i387.fxsave.mxcsr &= mxcsr_feature_mask; ret = 0; |