diff options
Diffstat (limited to 'arch/i386/kernel/entry.S')
| -rw-r--r-- | arch/i386/kernel/entry.S | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/arch/i386/kernel/entry.S b/arch/i386/kernel/entry.S index 4d704724b2f5..cfc683f153b9 100644 --- a/arch/i386/kernel/entry.S +++ b/arch/i386/kernel/entry.S | |||
| @@ -226,6 +226,10 @@ ENTRY(system_call) | |||
| 226 | pushl %eax # save orig_eax | 226 | pushl %eax # save orig_eax |
| 227 | SAVE_ALL | 227 | SAVE_ALL |
| 228 | GET_THREAD_INFO(%ebp) | 228 | GET_THREAD_INFO(%ebp) |
| 229 | testl $TF_MASK,EFLAGS(%esp) | ||
| 230 | jz no_singlestep | ||
| 231 | orl $_TIF_SINGLESTEP,TI_flags(%ebp) | ||
| 232 | no_singlestep: | ||
| 229 | # system call tracing in operation / emulation | 233 | # system call tracing in operation / emulation |
| 230 | /* Note, _TIF_SECCOMP is bit number 8, and so it needs testw and not testb */ | 234 | /* Note, _TIF_SECCOMP is bit number 8, and so it needs testw and not testb */ |
| 231 | testw $(_TIF_SYSCALL_EMU|_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT),TI_flags(%ebp) | 235 | testw $(_TIF_SYSCALL_EMU|_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT),TI_flags(%ebp) |