summaryrefslogtreecommitdiff
path: root/arch/s390/kernel/ptrace.c
diff options
context:
space:
mode:
authorPaul Mackerras <paulus@samba.org>2008-05-09 20:12:06 +1000
committerPaul Mackerras <paulus@samba.org>2008-05-09 20:12:06 +1000
commit2a5f2e3e6cd1ce9fb3f8b186b6bc9aa1f1497a92 (patch)
treeb2306840f227972a7c9d4a2b75e516fe81358ce8 /arch/s390/kernel/ptrace.c
parent02539d71fa98d5737bb668b02286c76241e4bac9 (diff)
parent78be76476a34a77f0ea9db2f78ba46a2b0fd5ab5 (diff)
Merge branch 'for-2.6.26' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx into merge
Diffstat (limited to 'arch/s390/kernel/ptrace.c')
-rw-r--r--arch/s390/kernel/ptrace.c57
1 files changed, 1 insertions, 56 deletions
diff --git a/arch/s390/kernel/ptrace.c b/arch/s390/kernel/ptrace.c
index 58a064296987..7f4270163744 100644
--- a/arch/s390/kernel/ptrace.c
+++ b/arch/s390/kernel/ptrace.c
@@ -607,38 +607,8 @@ do_ptrace_emu31(struct task_struct *child, long request, long addr, long data)
}
#endif
-#define PT32_IEEE_IP 0x13c
-
-static int
-do_ptrace(struct task_struct *child, long request, long addr, long data)
+long arch_ptrace(struct task_struct *child, long request, long addr, long data)
{
- int ret;
-
- if (request == PTRACE_ATTACH)
- return ptrace_attach(child);
-
- /*
- * Special cases to get/store the ieee instructions pointer.
- */
- if (child == current) {
- if (request == PTRACE_PEEKUSR && addr == PT_IEEE_IP)
- return peek_user(child, addr, data);
- if (request == PTRACE_POKEUSR && addr == PT_IEEE_IP)
- return poke_user(child, addr, data);
-#ifdef CONFIG_COMPAT
- if (request == PTRACE_PEEKUSR &&
- addr == PT32_IEEE_IP && test_thread_flag(TIF_31BIT))
- return peek_user_emu31(child, addr, data);
- if (request == PTRACE_POKEUSR &&
- addr == PT32_IEEE_IP && test_thread_flag(TIF_31BIT))
- return poke_user_emu31(child, addr, data);
-#endif
- }
-
- ret = ptrace_check_attach(child, request == PTRACE_KILL);
- if (ret < 0)
- return ret;
-
switch (request) {
case PTRACE_SYSCALL:
/* continue and stop at next (return from) syscall */
@@ -693,31 +663,6 @@ do_ptrace(struct task_struct *child, long request, long addr, long data)
return -EIO;
}
-asmlinkage long
-sys_ptrace(long request, long pid, long addr, long data)
-{
- struct task_struct *child;
- int ret;
-
- lock_kernel();
- if (request == PTRACE_TRACEME) {
- ret = ptrace_traceme();
- goto out;
- }
-
- child = ptrace_get_task_struct(pid);
- if (IS_ERR(child)) {
- ret = PTR_ERR(child);
- goto out;
- }
-
- ret = do_ptrace(child, request, addr, data);
- put_task_struct(child);
-out:
- unlock_kernel();
- return ret;
-}
-
asmlinkage void
syscall_trace(struct pt_regs *regs, int entryexit)
{