diff options
| -rw-r--r-- | arch/sparc64/kernel/entry.h | 3 | ||||
| -rw-r--r-- | arch/sparc64/kernel/ptrace.c | 38 | ||||
| -rw-r--r-- | arch/sparc64/kernel/sparc64_ksyms.c | 1 | ||||
| -rw-r--r-- | arch/sparc64/kernel/syscalls.S | 20 |
4 files changed, 30 insertions, 32 deletions
diff --git a/arch/sparc64/kernel/entry.h b/arch/sparc64/kernel/entry.h index fc294a29289..2255244442f 100644 --- a/arch/sparc64/kernel/entry.h +++ b/arch/sparc64/kernel/entry.h @@ -22,7 +22,8 @@ extern void do_notify_resume(struct pt_regs *regs, unsigned long orig_i0, unsigned long thread_info_flags); -extern asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p); +extern asmlinkage int syscall_trace_enter(struct pt_regs *regs); +extern asmlinkage void syscall_trace_leave(struct pt_regs *regs); extern void bad_trap_tl1(struct pt_regs *regs, long lvl); diff --git a/arch/sparc64/kernel/ptrace.c b/arch/sparc64/kernel/ptrace.c index bd578cc4856..db2ddf2e829 100644 --- a/arch/sparc64/kernel/ptrace.c +++ b/arch/sparc64/kernel/ptrace.c @@ -1050,31 +1050,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) return ret; } -asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p) +asmlinkage int syscall_trace_enter(struct pt_regs *regs) { int ret = 0; /* do the secure computing check first */ secure_computing(regs->u_regs[UREG_G1]); - if (unlikely(current->audit_context) && syscall_exit_p) { - unsigned long tstate = regs->tstate; - int result = AUDITSC_SUCCESS; - - if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) - result = AUDITSC_FAILURE; - - audit_syscall_exit(result, regs->u_regs[UREG_I0]); - } - - if (test_thread_flag(TIF_SYSCALL_TRACE)) { - if (syscall_exit_p) - tracehook_report_syscall_exit(regs, 0); - else - ret = tracehook_report_syscall_entry(regs); - } + if (test_thread_flag(TIF_SYSCALL_TRACE)) + ret = tracehook_report_syscall_entry(regs); - if (unlikely(current->audit_context) && !syscall_exit_p && !ret) + if (unlikely(current->audit_context) && !ret) audit_syscall_entry((test_thread_flag(TIF_32BIT) ? AUDIT_ARCH_SPARC : AUDIT_ARCH_SPARC64), @@ -1086,3 +1072,19 @@ asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p) return ret; } + +asmlinkage void syscall_trace_leave(struct pt_regs *regs) +{ + if (unlikely(current->audit_context)) { + unsigned long tstate = regs->tstate; + int result = AUDITSC_SUCCESS; + + if (unlikely(tstate & (TSTATE_XCARRY | TSTATE_ICARRY))) + result = AUDITSC_FAILURE; + + audit_syscall_exit(result, regs->u_regs[UREG_I0]); + } + + if (test_thread_flag(TIF_SYSCALL_TRACE)) + tracehook_report_syscall_exit(regs, 0); +} diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c index 0804f71df6c..d44b2eeb25d 100644 --- a/arch/sparc64/kernel/sparc64_ksyms.c +++ b/arch/sparc64/kernel/sparc64_ksyms.c @@ -68,7 +68,6 @@ extern void *__memscan_zero(void *, size_t); extern void *__memscan_generic(void *, int, size_t); extern int __memcmp(const void *, const void *, __kernel_size_t); extern __kernel_size_t strlen(const char *); -extern void syscall_trace(struct pt_regs *, int); extern void sys_sigsuspend(void); extern int compat_sys_ioctl(unsigned int fd, unsigned int cmd, u32 arg); extern int (*handle_mathemu)(struct pt_regs *, struct fpustate *); diff --git a/arch/sparc64/kernel/syscalls.S b/arch/sparc64/kernel/syscalls.S index a2f24270ed8..7a6786a7136 100644 --- a/arch/sparc64/kernel/syscalls.S +++ b/arch/sparc64/kernel/syscalls.S @@ -65,9 +65,8 @@ sys32_rt_sigreturn: andcc %l5, (_TIF_SYSCALL_TRACE|_TIF_SECCOMP|_TIF_SYSCALL_AUDIT), %g0 be,pt %icc, rtrap nop - add %sp, PTREGS_OFF, %o0 - call syscall_trace - mov 1, %o1 + call syscall_trace_leave + add %sp, PTREGS_OFF, %o0 ba,pt %xcc, rtrap nop @@ -159,9 +158,8 @@ linux_sparc_ni_syscall: or %l7, %lo(sys_ni_syscall), %l7 linux_syscall_trace32: - add %sp, PTREGS_OFF, %o0 - call syscall_trace - clr %o1 + call syscall_trace_enter + add %sp, PTREGS_OFF, %o0 brnz,pn %o0, 3f mov -ENOSYS, %o0 srl %i0, 0, %o0 @@ -172,9 +170,8 @@ linux_syscall_trace32: srl %i3, 0, %o3 linux_syscall_trace: - add %sp, PTREGS_OFF, %o0 - call syscall_trace - clr %o1 + call syscall_trace_enter + add %sp, PTREGS_OFF, %o0 brnz,pn %o0, 3f mov -ENOSYS, %o0 mov %i0, %o0 @@ -275,9 +272,8 @@ ret_sys_call: b,pt %xcc, rtrap stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] linux_syscall_trace2: - add %sp, PTREGS_OFF, %o0 - call syscall_trace - mov 1, %o1 + call syscall_trace_leave + add %sp, PTREGS_OFF, %o0 stx %l1, [%sp + PTREGS_OFF + PT_V9_TPC] ba,pt %xcc, rtrap stx %l2, [%sp + PTREGS_OFF + PT_V9_TNPC] |