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sparc: Use tracehook routines in syscall_trace().

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Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2008-07-27 03:13:13 -07:00
parent 768225868c
commit 1c133b4b3d
2 changed files with 21 additions and 17 deletions
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12
arch/sparc/kernel/entry.S
View File

@ -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]

26
arch/sparc/kernel/ptrace.c
View File

@ -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;
}