aboutsummaryrefslogtreecommitdiffstats
path: root/arch/mips/kernel
diff options
context:
space:
mode:
authorRalf Baechle <ralf@linux-mips.org>2012-07-17 19:43:58 +0200
committerRalf Baechle <ralf@linux-mips.org>2013-10-29 21:25:04 +0100
commitbc3d22c13e8b1ae0be016c67406787231f9e6548 (patch)
treef22fd98e391c74ea484c33b247c3869df5a95762 /arch/mips/kernel
parent46e12c07b3b9603c60fc1d421ff18618241cb081 (diff)
MIPS: ptrace: Use tracehook helpers.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/kernel')
-rw-r--r--arch/mips/kernel/ptrace.c46
1 files changed, 5 insertions, 41 deletions
diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 8ae1ebef8b71..7a5d7ac6b0d4 100644
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -24,6 +24,7 @@
#include <linux/smp.h>
#include <linux/user.h>
#include <linux/security.h>
+#include <linux/tracehook.h>
#include <linux/audit.h>
#include <linux/seccomp.h>
@@ -540,28 +541,9 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
/* do the secure computing check first */
secure_computing_strict(regs->regs[2]);
- if (!(current->ptrace & PT_PTRACED))
- goto out;
+ if (test_thread_flag(TIF_SYSCALL_TRACE))
+ ptrace_report_syscall(regs);
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- goto out;
-
- /* The 0x80 provides a way for the tracing parent to distinguish
- between a syscall stop and SIGTRAP delivery */
- ptrace_notify(SIGTRAP | ((current->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;
- }
-
-out:
audit_syscall_entry(audit_arch(), regs->regs[2],
regs->regs[4], regs->regs[5],
regs->regs[6], regs->regs[7]);
@@ -582,26 +564,8 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
audit_syscall_exit(regs);
- if (!(current->ptrace & PT_PTRACED))
- return;
-
- if (!test_thread_flag(TIF_SYSCALL_TRACE))
- return;
-
- /* The 0x80 provides a way for the tracing parent to distinguish
- between a syscall stop and SIGTRAP delivery */
- ptrace_notify(SIGTRAP | ((current->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;
- }
+ if (test_thread_flag(TIF_SYSCALL_TRACE))
+ tracehook_report_syscall_exit(regs, 0);
user_enter();
}

Privacy Policy