uml: fix FP register corruption

[linux-2.6-omap-h63xx.git] / arch / um / os-Linux / skas / process.c

diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index b14829469faefdf99a2511beede3ea6515c21927..1e8cba6550a99824df296e468747fabc109d6d44 100644 (file)
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -115,6 +115,14 @@ void get_skas_faultinfo(int pid, struct faultinfo * fi)
                               sizeof(struct ptrace_faultinfo));
        }
        else {
+               unsigned long fpregs[FP_SIZE];
+
+               err = get_fp_registers(pid, fpregs);
+               if (err < 0) {
+                       printk(UM_KERN_ERR "save_fp_registers returned %d\n",
+                              err);
+                       fatal_sigsegv();
+               }
                err = ptrace(PTRACE_CONT, pid, 0, SIGSEGV);
                if (err) {
                        printk(UM_KERN_ERR "Failed to continue stub, pid = %d, "
@@ -128,6 +136,13 @@ void get_skas_faultinfo(int pid, struct faultinfo * fi)
                 * the stub stack page. We just have to copy it.
                 */
                memcpy(fi, (void *)current_stub_stack(), sizeof(*fi));
+
+               err = put_fp_registers(pid, fpregs);
+               if (err < 0) {
+                       printk(UM_KERN_ERR "put_fp_registers returned %d\n",
+                              err);
+                       fatal_sigsegv();
+               }
        }
 }