diff options
Diffstat (limited to 'arch/i386/kernel/ptrace.c')
| -rw-r--r-- | arch/i386/kernel/ptrace.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/arch/i386/kernel/ptrace.c b/arch/i386/kernel/ptrace.c index 340980203b09..7b6368bf8974 100644 --- a/arch/i386/kernel/ptrace.c +++ b/arch/i386/kernel/ptrace.c | |||
| @@ -694,17 +694,22 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code) | |||
| 694 | __attribute__((regparm(3))) | 694 | __attribute__((regparm(3))) |
| 695 | int do_syscall_trace(struct pt_regs *regs, int entryexit) | 695 | int do_syscall_trace(struct pt_regs *regs, int entryexit) |
| 696 | { | 696 | { |
| 697 | int is_sysemu = test_thread_flag(TIF_SYSCALL_EMU), ret = 0; | 697 | int is_sysemu = test_thread_flag(TIF_SYSCALL_EMU); |
| 698 | /* With TIF_SYSCALL_EMU set we want to ignore TIF_SINGLESTEP for syscall | 698 | /* |
| 699 | * interception. */ | 699 | * With TIF_SYSCALL_EMU set we want to ignore TIF_SINGLESTEP for syscall |
| 700 | * interception | ||
| 701 | */ | ||
| 700 | int is_singlestep = !is_sysemu && test_thread_flag(TIF_SINGLESTEP); | 702 | int is_singlestep = !is_sysemu && test_thread_flag(TIF_SINGLESTEP); |
| 703 | int ret = 0; | ||
| 701 | 704 | ||
| 702 | /* do the secure computing check first */ | 705 | /* do the secure computing check first */ |
| 703 | secure_computing(regs->orig_eax); | 706 | if (!entryexit) |
| 707 | secure_computing(regs->orig_eax); | ||
| 704 | 708 | ||
| 705 | if (unlikely(current->audit_context)) { | 709 | if (unlikely(current->audit_context)) { |
| 706 | if (entryexit) | 710 | if (entryexit) |
| 707 | audit_syscall_exit(current, AUDITSC_RESULT(regs->eax), regs->eax); | 711 | audit_syscall_exit(current, AUDITSC_RESULT(regs->eax), |
| 712 | regs->eax); | ||
| 708 | /* Debug traps, when using PTRACE_SINGLESTEP, must be sent only | 713 | /* Debug traps, when using PTRACE_SINGLESTEP, must be sent only |
| 709 | * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is | 714 | * on the syscall exit path. Normally, when TIF_SYSCALL_AUDIT is |
| 710 | * not used, entry.S will call us only on syscall exit, not | 715 | * not used, entry.S will call us only on syscall exit, not |
| @@ -738,7 +743,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit) | |||
| 738 | /* the 0x80 provides a way for the tracing parent to distinguish | 743 | /* the 0x80 provides a way for the tracing parent to distinguish |
| 739 | between a syscall stop and SIGTRAP delivery */ | 744 | between a syscall stop and SIGTRAP delivery */ |
| 740 | /* Note that the debugger could change the result of test_thread_flag!*/ | 745 | /* Note that the debugger could change the result of test_thread_flag!*/ |
| 741 | ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80 : 0)); | 746 | ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) ? 0x80:0)); |
| 742 | 747 | ||
| 743 | /* | 748 | /* |
| 744 | * this isn't the same as continuing with a signal, but it will do | 749 | * this isn't the same as continuing with a signal, but it will do |
| @@ -750,7 +755,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit) | |||
| 750 | current->exit_code = 0; | 755 | current->exit_code = 0; |
| 751 | } | 756 | } |
| 752 | ret = is_sysemu; | 757 | ret = is_sysemu; |
| 753 | out: | 758 | out: |
| 754 | if (unlikely(current->audit_context) && !entryexit) | 759 | if (unlikely(current->audit_context) && !entryexit) |
| 755 | audit_syscall_entry(current, AUDIT_ARCH_I386, regs->orig_eax, | 760 | audit_syscall_entry(current, AUDIT_ARCH_I386, regs->orig_eax, |
| 756 | regs->ebx, regs->ecx, regs->edx, regs->esi); | 761 | regs->ebx, regs->ecx, regs->edx, regs->esi); |
| @@ -759,6 +764,7 @@ int do_syscall_trace(struct pt_regs *regs, int entryexit) | |||
| 759 | 764 | ||
| 760 | regs->orig_eax = -1; /* force skip of syscall restarting */ | 765 | regs->orig_eax = -1; /* force skip of syscall restarting */ |
| 761 | if (unlikely(current->audit_context)) | 766 | if (unlikely(current->audit_context)) |
| 762 | audit_syscall_exit(current, AUDITSC_RESULT(regs->eax), regs->eax); | 767 | audit_syscall_exit(current, AUDITSC_RESULT(regs->eax), |
| 768 | regs->eax); | ||
| 763 | return 1; | 769 | return 1; |
| 764 | } | 770 | } |
