diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2022-01-27 11:17:32 -0600 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2022-03-10 13:31:01 -0600 |
| commit | 19397e8b546d20226153dafe5dce34c4393752c4 (patch) | |
| tree | fc2e6cde6dceecf595b8d5941ad2517d1c79aa7a /include/linux/ptrace.h | |
| parent | e783362eb54cd99b2cac8b3a9aeac942e6f6ac07 (diff) | |
ptrace: Move ptrace_report_syscall into ptrace.h
Move ptrace_report_syscall from tracehook.h into ptrace.h where it
belongs.
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lkml.kernel.org/r/20220309162454.123006-1-ebiederm@xmission.com
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Diffstat (limited to 'include/linux/ptrace.h')
| -rw-r--r-- | include/linux/ptrace.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/linux/ptrace.h b/include/linux/ptrace.h index 8aee2945ff08..91b1074edb4c 100644 --- a/include/linux/ptrace.h +++ b/include/linux/ptrace.h @@ -413,4 +413,31 @@ static inline void user_single_step_report(struct pt_regs *regs) extern int task_current_syscall(struct task_struct *target, struct syscall_info *info); extern void sigaction_compat_abi(struct k_sigaction *act, struct k_sigaction *oact); + +/* + * ptrace report for syscall entry and exit looks identical. + */ +static inline int ptrace_report_syscall(unsigned long message) +{ + int ptrace = current->ptrace; + + if (!(ptrace & PT_PTRACED)) + return 0; + + current->ptrace_message = message; + ptrace_notify(SIGTRAP | ((ptrace & PT_TRACESYSGOOD) ? 0x80 : 0)); + + /* + * this isn't the same as continuing with a signal, but it will do + * for normal use. strace only continues with a signal if the + * stopping signal is not SIGTRAP. -brl + */ + if (current->exit_code) { + send_sig(current->exit_code, current, 1); + current->exit_code = 0; + } + + current->ptrace_message = 0; + return fatal_signal_pending(current); +} #endif |