fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / mips / kernel / ptrace.c

diff --git a/arch/mips/kernel/ptrace.c b/arch/mips/kernel/ptrace.c
index 1c74235..6ca8e9e 100644 (file)
--- a/arch/mips/kernel/ptrace.c
+++ b/arch/mips/kernel/ptrace.c
@@ -26,6 +26,7 @@
 #include <linux/user.h>
 #include <linux/security.h>
 #include <linux/signal.h>
+#include <linux/vs_base.h>
 
 #include <asm/byteorder.h>
 #include <asm/cpu.h>
@@ -106,6 +107,7 @@ int ptrace_setregs (struct task_struct *child, __s64 __user *data)
 int ptrace_getfpregs (struct task_struct *child, __u32 __user *data)
 {
        int i;
+       unsigned int tmp;
 
        if (!access_ok(VERIFY_WRITE, data, 33 * 8))
                return -EIO;
@@ -121,10 +123,10 @@ int ptrace_getfpregs (struct task_struct *child, __u32 __user *data)
 
        __put_user (child->thread.fpu.fcr31, data + 64);
 
+       preempt_disable();
        if (cpu_has_fpu) {
-               unsigned int flags, tmp;
+               unsigned int flags;
 
-               preempt_disable();
                if (cpu_has_mipsmt) {
                        unsigned int vpflags = dvpe();
                        flags = read_c0_status();
@@ -138,11 +140,11 @@ int ptrace_getfpregs (struct task_struct *child, __u32 __user *data)
                        __asm__ __volatile__("cfc1\t%0,$0" : "=r" (tmp));
                        write_c0_status(flags);
                }
-               preempt_enable();
-               __put_user (tmp, data + 65);
        } else {
-               __put_user ((__u32) 0, data + 65);
+               tmp = 0;
        }
+       preempt_enable();
+       __put_user (tmp, data + 65);
 
        return 0;
 }
@@ -171,7 +173,7 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 {
        int ret;
 
-       if (!vx_check(vx_task_xid(child), VX_WATCH|VX_IDENT))
+       if (!vx_check(vx_task_xid(child), VS_WATCH_P|VS_IDENT))
                goto out;
 
        switch (request) {
@@ -248,16 +250,17 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
                        unsigned int mtflags;
 #endif /* CONFIG_MIPS_MT_SMTC */
 
-                       if (!cpu_has_fpu)
+                       preempt_disable();
+                       if (!cpu_has_fpu) {
+                               preempt_enable();
                                break;
+                       }
 
 #ifdef CONFIG_MIPS_MT_SMTC
                        /* Read-modify-write of Status must be atomic */
                        local_irq_save(irqflags);
                        mtflags = dmt();
 #endif /* CONFIG_MIPS_MT_SMTC */
-
-                       preempt_disable();
                        if (cpu_has_mipsmt) {
                                unsigned int vpflags = dvpe();
                                flags = read_c0_status();
@@ -478,26 +481,9 @@ asmlinkage void do_syscall_trace(struct pt_regs *regs, int entryexit)
                audit_syscall_exit(AUDITSC_RESULT(regs->regs[2]),
                                   regs->regs[2]);
 
-       if (!(current->ptrace & PT_PTRACED))
-               goto out;
-       if (!test_thread_flag(TIF_SYSCALL_TRACE))
-               goto out;
+       if (test_thread_flag(TIF_SYSCALL_TRACE))
+               tracehook_report_syscall(regs, entryexit);
 
-       /* 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));
-
-       /*
-        * 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;
-       }
- out:
        if (unlikely(current->audit_context) && !entryexit)
                audit_syscall_entry(audit_arch(), regs->regs[2],
                                    regs->regs[4], regs->regs[5],