diff options
Diffstat (limited to 'arch/tile/kernel/ptrace.c')
| -rw-r--r-- | arch/tile/kernel/ptrace.c | 39 |
1 files changed, 20 insertions, 19 deletions
diff --git a/arch/tile/kernel/ptrace.c b/arch/tile/kernel/ptrace.c index 9835312d5a9..0f83ed4602b 100644 --- a/arch/tile/kernel/ptrace.c +++ b/arch/tile/kernel/ptrace.c @@ -21,9 +21,13 @@ #include <linux/uaccess.h> #include <linux/regset.h> #include <linux/elf.h> +#include <linux/tracehook.h> #include <asm/traps.h> #include <arch/chip.h> +#define CREATE_TRACE_POINTS +#include <trace/events/syscalls.h> + void user_enable_single_step(struct task_struct *child) { set_tsk_thread_flag(child, TIF_SINGLESTEP); @@ -246,29 +250,26 @@ long compat_arch_ptrace(struct task_struct *child, compat_long_t request, } #endif -void do_syscall_trace(void) +int do_syscall_trace_enter(struct pt_regs *regs) { - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return; + if (test_thread_flag(TIF_SYSCALL_TRACE)) { + if (tracehook_report_syscall_entry(regs)) + regs->regs[TREG_SYSCALL_NR] = -1; + } - if (!(current->ptrace & PT_PTRACED)) - return; + if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) + trace_sys_enter(regs, regs->regs[TREG_SYSCALL_NR]); - /* - * The 0x80 provides a way for the tracing parent to distinguish - * between a syscall stop and SIGTRAP delivery - */ - ptrace_notify(SIGTRAP|((current->ptrace & PT_TRACESYSGOOD) ? 0x80 : 0)); + return regs->regs[TREG_SYSCALL_NR]; +} - /* - * 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; - } +void do_syscall_trace_exit(struct pt_regs *regs) +{ + if (test_thread_flag(TIF_SYSCALL_TRACE)) + tracehook_report_syscall_exit(regs, 0); + + if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) + trace_sys_exit(regs, regs->regs[0]); } void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code) |