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MIPS: ftrace: Add support for syscall tracepoints.

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2013-09-06 20:24:48 +02:00
parent 0dfa95aaa8
commit 1d7bf993e0
5 changed files with 43 additions and 3 deletions
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10
arch/mips/kernel/ptrace.c
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@@ -29,6 +29,7 @@
#include <linux/tracehook.h>
#include <linux/audit.h>
#include <linux/seccomp.h>
#include <linux/ftrace.h>
#include <asm/byteorder.h>
#include <asm/cpu.h>
@@ -43,6 +44,9 @@
#include <asm/bootinfo.h>
#include <asm/reg.h>
#define CREATE_TRACE_POINTS
#include <trace/events/syscalls.h>
/*
* Called by kernel/ptrace.c when detaching..
*
@@ -664,6 +668,9 @@ asmlinkage void syscall_trace_enter(struct pt_regs *regs)
tracehook_report_syscall_entry(regs))
ret = -1;
if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
trace_sys_enter(regs, regs->regs[2]);
audit_syscall_entry(__syscall_get_arch(),
regs->regs[2],
regs->regs[4], regs->regs[5],
@@ -685,6 +692,9 @@ asmlinkage void syscall_trace_leave(struct pt_regs *regs)
audit_syscall_exit(regs);
if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT)))
trace_sys_exit(regs, regs->regs[2]);
if (test_thread_flag(TIF_SYSCALL_TRACE))
tracehook_report_syscall_exit(regs, 0);