AcoSail/kernel_optimize_test
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tracehook: exit

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This moves the PTRACE_EVENT_EXIT tracing into a tracehook.h inline,
tracehook_report_exec().  The change has no effect, just clean-up.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Roland McGrath 2008-07-25 19:45:46 -07:00 committed by Linus Torvalds
parent ff1188646c
commit 30199f5a46
2 changed files with 17 additions and 4 deletions
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15
include/linux/tracehook.h
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@ -95,4 +95,19 @@ static inline void tracehook_report_exec(struct linux_binfmt *fmt,
send_sig(SIGTRAP, current, 0); send_sig(SIGTRAP, current, 0);
} }
/**
* tracehook_report_exit - task has begun to exit
* @exit_code: pointer to value destined for @current->exit_code
*
* @exit_code points to the value passed to do_exit(), which tracing
* might change here. This is almost the first thing in do_exit(),
* before freeing any resources or setting the %PF_EXITING flag.
*
* Called with no locks held.
*/
static inline void tracehook_report_exit(long *exit_code)
{
ptrace_event(PT_TRACE_EXIT, PTRACE_EVENT_EXIT, *exit_code);
}
#endif /* <linux/tracehook.h> */ #endif /* <linux/tracehook.h> */

6
kernel/exit.c
View File

@ -46,6 +46,7 @@
#include <linux/resource.h> #include <linux/resource.h>
#include <linux/blkdev.h> #include <linux/blkdev.h>
#include <linux/task_io_accounting_ops.h> #include <linux/task_io_accounting_ops.h>
#include <linux/tracehook.h>
#include <asm/uaccess.h> #include <asm/uaccess.h>
#include <asm/unistd.h> #include <asm/unistd.h>
@ -1029,10 +1030,7 @@ NORET_TYPE void do_exit(long code)
if (unlikely(!tsk->pid)) if (unlikely(!tsk->pid))
panic("Attempted to kill the idle task!"); panic("Attempted to kill the idle task!");
if (unlikely(current->ptrace & PT_TRACE_EXIT)) { tracehook_report_exit(&code);
current->ptrace_message = code;
ptrace_notify((PTRACE_EVENT_EXIT << 8) | SIGTRAP);
}
/* /*
* We're taking recursive faults here in do_exit. Safest is to just * We're taking recursive faults here in do_exit. Safest is to just