xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tracing: Create generic syscall TRACE_EVENTs

Browse Source 
This converts the syscall_enter/exit tracepoints into TRACE_EVENTs, so
you can have generic ftrace events that capture all system calls with
arguments and return values.  These generic events are also renamed to
sys_enter/exit, so they're more closely aligned to the specific
sys_enter_foo events.

Signed-off-by: Josh Stone <jistone@redhat.com>
Cc: Jason Baron <jbaron@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Jiaying Zhang <jiayingz@google.com>
Cc: Martin Bligh <mbligh@google.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
LKML-Reference: <1251150194-1713-5-git-send-email-jistone@redhat.com>
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
This commit is contained in:
Josh Stone
2009-08-24 14:43:14 -07:00
committed by Frederic Weisbecker
parent 9741987586
commit 1c569f0264
5 changed files with 88 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/x86/kernel/ptrace.c
View File

@@ -35,13 +35,11 @@
#include <asm/proto.h>
#include <asm/ds.h>
#include <trace/syscall.h>
DEFINE_TRACE_FN(syscall_enter, syscall_regfunc, syscall_unregfunc);
DEFINE_TRACE_FN(syscall_exit, syscall_regfunc, syscall_unregfunc);
#include "tls.h"
#define CREATE_TRACE_POINTS
#include <trace/events/syscalls.h>
enum x86_regset {
REGSET_GENERAL,
REGSET_FP,
@@ -1501,7 +1499,7 @@ asmregparm long syscall_trace_enter(struct pt_regs *regs)
ret = -1L;
if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
trace_syscall_enter(regs, regs->orig_ax);
trace_sys_enter(regs, regs->orig_ax);
if (unlikely(current->audit_context)) {
if (IS_IA32)
@@ -1527,7 +1525,7 @@ asmregparm void syscall_trace_leave(struct pt_regs *regs)
audit_syscall_exit(AUDITSC_RESULT(regs->ax), regs->ax);
if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
trace_syscall_exit(regs, regs->ax);
trace_sys_exit(regs, regs->ax);
if (test_thread_flag(TIF_SYSCALL_TRACE))
tracehook_report_syscall_exit(regs, 0);