diff options
| author | David S. Miller <davem@davemloft.net> | 2008-07-27 10:13:13 (GMT) |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-07-28 00:33:14 (GMT) |
| commit | 1c133b4b3d58bf88293eeea0d9d090777333bf48 (patch) | |
| tree | b26171abee538e13443ba4470aecc18433afd08a /arch/sparc/kernel | |
| parent | 768225868c16d882f7a38a11027945284dc9f49e (diff) | |
| download | linux-fsl-qoriq-1c133b4b3d58bf88293eeea0d9d090777333bf48.tar.xz | |
sparc: Use tracehook routines in syscall_trace().
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/kernel')
| -rw-r--r-- | arch/sparc/kernel/entry.S | 12 | ||||
| -rw-r--r-- | arch/sparc/kernel/ptrace.c | 26 |
2 files changed, 21 insertions, 17 deletions
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S index 2f96256..e8cdf71 100644 --- a/arch/sparc/kernel/entry.S +++ b/arch/sparc/kernel/entry.S @@ -1196,8 +1196,9 @@ sys_rt_sigreturn: be 1f nop + add %sp, STACKFRAME_SZ, %o0 call syscall_trace - nop + mov 1, %o1 1: /* We are returning to a signal handler. */ @@ -1287,8 +1288,12 @@ linux_fast_syscall: mov %i3, %o3 linux_syscall_trace: + add %sp, STACKFRAME_SZ, %o0 call syscall_trace - nop + mov 0, %o1 + cmp %o0, 0 + bne 3f + mov -ENOSYS, %o0 mov %i0, %o0 mov %i1, %o1 mov %i2, %o2 @@ -1337,6 +1342,7 @@ syscall_is_too_hard: call %l7 mov %i5, %o5 +3: st %o0, [%sp + STACKFRAME_SZ + PT_I0] ret_sys_call: @@ -1374,6 +1380,8 @@ ret_sys_call: st %l2, [%sp + STACKFRAME_SZ + PT_NPC] linux_syscall_trace2: + add %sp, STACKFRAME_SZ, %o0 + mov 1, %o1 call syscall_trace add %l1, 0x4, %l2 /* npc = npc+4 */ st %l1, [%sp + STACKFRAME_SZ + PT_PC] diff --git a/arch/sparc/kernel/ptrace.c b/arch/sparc/kernel/ptrace.c index 81f3b92..20699c7 100644 --- a/arch/sparc/kernel/ptrace.c +++ b/arch/sparc/kernel/ptrace.c @@ -21,6 +21,7 @@ #include <linux/signal.h> #include <linux/regset.h> #include <linux/elf.h> +#include <linux/tracehook.h> #include <asm/pgtable.h> #include <asm/system.h> @@ -450,21 +451,16 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data) return ret; } -asmlinkage void syscall_trace(void) +asmlinkage int syscall_trace(struct pt_regs *regs, int syscall_exit_p) { - if (!test_thread_flag(TIF_SYSCALL_TRACE)) - return; - if (!(current->ptrace & PT_PTRACED)) - return; - ptrace_notify(SIGTRAP | ((current->ptrace & PT_TRACESYSGOOD) - ? 0x80 : 0)); - /* - * 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; + int ret = 0; + + if (test_thread_flag(TIF_SYSCALL_TRACE)) { + if (syscall_exit_p) + tracehook_report_syscall_exit(regs, 0); + else + ret = tracehook_report_syscall_entry(regs); } + + return ret; } |