fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / arch / um / os-Linux / sys-i386 / registers.c

diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c
index 7a6f6b9..ecd21e0 100644 (file)
--- a/arch/um/os-Linux/sys-i386/registers.c
+++ b/arch/um/os-Linux/sys-i386/registers.c
@@ -5,17 +5,17 @@
 
 #include <errno.h>
 #include <string.h>
-#include <setjmp.h>
 #include "sysdep/ptrace_user.h"
 #include "sysdep/ptrace.h"
 #include "uml-config.h"
 #include "skas_ptregs.h"
 #include "registers.h"
+#include "longjmp.h"
 #include "user.h"
 
 /* These are set once at boot time and not changed thereafter */
 
-static unsigned long exec_regs[HOST_FRAME_SIZE];
+static unsigned long exec_regs[MAX_REG_NR];
 static unsigned long exec_fp_regs[HOST_FP_SIZE];
 static unsigned long exec_fpx_regs[HOST_XFP_SIZE];
 static int have_fpx_regs = 1;
@@ -101,10 +101,11 @@ void init_registers(int pid)
 {
        int err;
 
+       memset(exec_regs, 0, sizeof(exec_regs));
        err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs);
        if(err)
                panic("check_ptrace : PTRACE_GETREGS failed, errno = %d",
-                     err);
+                     errno);
 
        errno = 0;
        err = ptrace(PTRACE_GETFPXREGS, pid, 0, exec_fpx_regs);
@@ -119,22 +120,25 @@ void init_registers(int pid)
        err = ptrace(PTRACE_GETFPREGS, pid, 0, exec_fp_regs);
        if(err)
                panic("check_ptrace : PTRACE_GETFPREGS failed, errno = %d",
-                     err);
+                     errno);
 }
 
 void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
 {
-       memcpy(regs, exec_regs, HOST_FRAME_SIZE * sizeof(unsigned long));
+       memcpy(regs, exec_regs, sizeof(exec_regs));
        if(fp_regs != NULL)
                memcpy(fp_regs, exec_fp_regs,
                       HOST_FP_SIZE * sizeof(unsigned long));
 }
 
-void get_thread_regs(union uml_pt_regs *uml_regs, void *buffer)
+unsigned long get_thread_reg(int reg, jmp_buf *buf)
 {
-       struct __jmp_buf_tag *jmpbuf = buffer;
-
-       UPT_SET(uml_regs, EIP, jmpbuf->__jmpbuf[JB_PC]);
-       UPT_SET(uml_regs, UESP, jmpbuf->__jmpbuf[JB_SP]);
-       UPT_SET(uml_regs, EBP, jmpbuf->__jmpbuf[JB_BP]);
+       switch(reg){
+       case EIP: return buf[0]->__eip;
+       case UESP: return buf[0]->__esp;
+       case EBP: return buf[0]->__ebp;
+       default:
+               printk("get_thread_regs - unknown register %d\n", reg);
+               return 0;
+       }
 }