vserver 1.9.5.x5

[linux-2.6.git] / arch / um / sys-i386 / ptrace_user.c

diff --git a/arch/um/sys-i386/ptrace_user.c b/arch/um/sys-i386/ptrace_user.c
index 70da623..69aa6d6 100644 (file)
--- a/arch/um/sys-i386/ptrace_user.c
+++ b/arch/um/sys-i386/ptrace_user.c
@@ -17,17 +17,30 @@
 
 int ptrace_getregs(long pid, unsigned long *regs_out)
 {
-       return(ptrace(PTRACE_GETREGS, pid, 0, regs_out));
+       if (ptrace(PTRACE_GETREGS, pid, 0, regs_out) < 0)
+               return -errno;
+       return 0;
 }
 
 int ptrace_setregs(long pid, unsigned long *regs)
 {
-       return(ptrace(PTRACE_SETREGS, pid, 0, regs));
+       if (ptrace(PTRACE_SETREGS, pid, 0, regs) < 0)
+               return -errno;
+       return 0;
 }
 
 int ptrace_getfpregs(long pid, unsigned long *regs)
 {
-       return(ptrace(PTRACE_GETFPREGS, pid, 0, regs));
+       if (ptrace(PTRACE_GETFPREGS, pid, 0, regs) < 0)
+               return -errno;
+       return 0;
+}
+
+int ptrace_setfpregs(long pid, unsigned long *regs)
+{
+       if (ptrace(PTRACE_SETFPREGS, pid, 0, regs) < 0)
+               return -errno;
+       return 0;
 }
 
 static void write_debugregs(int pid, unsigned long *regs)
@@ -39,10 +52,11 @@ static void write_debugregs(int pid, unsigned long *regs)
        nregs = sizeof(dummy->u_debugreg)/sizeof(dummy->u_debugreg[0]);
        for(i = 0; i < nregs; i++){
                if((i == 4) || (i == 5)) continue;
-               if(ptrace(PTRACE_POKEUSR, pid, &dummy->u_debugreg[i],
+               if(ptrace(PTRACE_POKEUSER, pid, &dummy->u_debugreg[i],
                          regs[i]) < 0)
-                       printk("write_debugregs - ptrace failed, "
-                              "errno = %d\n", errno);
+                       printk("write_debugregs - ptrace failed on "
+                              "register %d, value = 0x%x, errno = %d\n", i,
+                              regs[i], errno);
        }
 }
 
@@ -54,7 +68,7 @@ static void read_debugregs(int pid, unsigned long *regs)
        dummy = NULL;
        nregs = sizeof(dummy->u_debugreg)/sizeof(dummy->u_debugreg[0]);
        for(i = 0; i < nregs; i++){
-               regs[i] = ptrace(PTRACE_PEEKUSR, pid, 
+               regs[i] = ptrace(PTRACE_PEEKUSER, pid,
                                 &dummy->u_debugreg[i], 0);
        }
 }