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authorIngo Molnar <mingo@elte.hu>2008-10-06 18:16:40 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-06 18:16:40 +0200
commitb159d7a989e53ab3529084348aa80441520b8575 (patch)
tree416512130cf80ded4cd88fc064d0b28c8220616f /arch/x86/kernel/ptrace.c
parent0962f402af1bb0b53ccee626785d202a10c12fff (diff)
parent4ab4ba32aa16b012cb0faabf1a27952508fe67f2 (diff)
downloadlinux-linaro-android-b159d7a989e53ab3529084348aa80441520b8575.tar.gz
Merge branch 'x86/tracehook' into x86-v28-for-linus-phase1
Conflicts: arch/x86/kernel/signal_64.c Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/ptrace.c')
-rw-r--r--arch/x86/kernel/ptrace.c34
1 files changed, 6 insertions, 28 deletions
diff --git a/arch/x86/kernel/ptrace.c b/arch/x86/kernel/ptrace.c
index d00e756c05a..e375b658efc 100644
--- a/arch/x86/kernel/ptrace.c
+++ b/arch/x86/kernel/ptrace.c
@@ -14,6 +14,7 @@
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/regset.h>
+#include <linux/tracehook.h>
#include <linux/user.h>
#include <linux/elf.h>
#include <linux/security.h>
@@ -1469,30 +1470,6 @@ void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code)
force_sig_info(SIGTRAP, &info, tsk);
}
-static void syscall_trace(struct pt_regs *regs)
-{
- if (!(current->ptrace & PT_PTRACED))
- return;
-
-#if 0
- printk("trace %s ip %lx sp %lx ax %d origrax %d caller %lx tiflags %x ptrace %x\n",
- current->comm,
- regs->ip, regs->sp, regs->ax, regs->orig_ax, __builtin_return_address(0),
- current_thread_info()->flags, current->ptrace);
-#endif
-
- 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;
- }
-}
#ifdef CONFIG_X86_32
# define IS_IA32 1
@@ -1526,8 +1503,9 @@ asmregparm long syscall_trace_enter(struct pt_regs *regs)
if (unlikely(test_thread_flag(TIF_SYSCALL_EMU)))
ret = -1L;
- if (ret || test_thread_flag(TIF_SYSCALL_TRACE))
- syscall_trace(regs);
+ if ((ret || test_thread_flag(TIF_SYSCALL_TRACE)) &&
+ tracehook_report_syscall_entry(regs))
+ ret = -1L;
if (unlikely(current->audit_context)) {
if (IS_IA32)
@@ -1553,7 +1531,7 @@ asmregparm void syscall_trace_leave(struct pt_regs *regs)
audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
if (test_thread_flag(TIF_SYSCALL_TRACE))
- syscall_trace(regs);
+ tracehook_report_syscall_exit(regs, 0);
/*
* If TIF_SYSCALL_EMU is set, we only get here because of
@@ -1569,6 +1547,6 @@ asmregparm void syscall_trace_leave(struct pt_regs *regs)
* system call instruction.
*/
if (test_thread_flag(TIF_SINGLESTEP) &&
- (current->ptrace & PT_PTRACED))
+ tracehook_consider_fatal_signal(current, SIGTRAP, SIG_DFL))
send_sigtrap(current, regs, 0);
}