diff options
| author | Helge Deller <deller@gmx.de> | 2016-04-13 22:44:54 +0200 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2016-05-22 21:38:47 +0200 |
| commit | fc79168a7c75423047d60a033dc4844955ccae0b (patch) | |
| tree | 2a2cc2008024f4025965abd54799004176c3dc58 /arch/parisc/kernel | |
| parent | f6c658df63856db3bf8f467024b1dbee37b5399c (diff) | |
| download | linux-fc79168a7c75423047d60a033dc4844955ccae0b.tar.gz | |
parisc: Add syscall tracepoint support
This patch adds support for the TIF_SYSCALL_TRACEPOINT on the parisc architecture. Basically, it calls the appropriate tracepoints on syscall entry and exit. Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/kernel')
| -rw-r--r-- | arch/parisc/kernel/ptrace.c | 12 | ||||
| -rw-r--r-- | arch/parisc/kernel/syscall.S | 1 |
2 files changed, 13 insertions, 0 deletions
diff --git a/arch/parisc/kernel/ptrace.c b/arch/parisc/kernel/ptrace.c index 8fb81a391599..4863761bdbbb 100644 --- a/arch/parisc/kernel/ptrace.c +++ b/arch/parisc/kernel/ptrace.c @@ -30,6 +30,9 @@ /* PSW bits we allow the debugger to modify */ #define USER_PSW_BITS (PSW_N | PSW_B | PSW_V | PSW_CB) +#define CREATE_TRACE_POINTS +#include <trace/events/syscalls.h> + /* * Called by kernel/ptrace.c when detaching.. * @@ -283,6 +286,10 @@ long do_syscall_trace_enter(struct pt_regs *regs) regs->gr[20] = -1UL; goto out; } +#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS + if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) + trace_sys_enter(regs, regs->gr[20]); +#endif #ifdef CONFIG_64BIT if (!is_compat_task()) @@ -311,6 +318,11 @@ void do_syscall_trace_exit(struct pt_regs *regs) audit_syscall_exit(regs); +#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS + if (unlikely(test_thread_flag(TIF_SYSCALL_TRACEPOINT))) + trace_sys_exit(regs, regs->gr[20]); +#endif + if (stepping || test_thread_flag(TIF_SYSCALL_TRACE)) tracehook_report_syscall_exit(regs, stepping); } diff --git a/arch/parisc/kernel/syscall.S b/arch/parisc/kernel/syscall.S index 57b4836b7ecd..d03422e5f188 100644 --- a/arch/parisc/kernel/syscall.S +++ b/arch/parisc/kernel/syscall.S @@ -912,6 +912,7 @@ END(lws_table) .align 8 ENTRY(sys_call_table) + .export sys_call_table,data #include "syscall_table.S" END(sys_call_table) |