Added missing tegra files.HEADmaster

1 files changed, 91 insertions, 0 deletions

diff --git a/arch/um/os-Linux/sys-i386/registers.c b/arch/um/os-Linux/sys-i386/registers.c
new file mode 100644
index 00000000000..229f7a53d8d
--- /dev/null
+++ b/arch/um/os-Linux/sys-i386/registers.c
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2004 PathScale, Inc
+ * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
+ * Licensed under the GPL
+ */
+
+#include <errno.h>
+#include <sys/ptrace.h>
+#include <sys/user.h>
+#include "kern_constants.h"
+#include "longjmp.h"
+#include "user.h"
+#include "sysdep/ptrace_user.h"
+
+int save_fp_registers(int pid, unsigned long *fp_regs)
+{
+        if (ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
+                return -errno;
+        return 0;
+}
+
+int restore_fp_registers(int pid, unsigned long *fp_regs)
+{
+        if (ptrace(PTRACE_SETFPREGS, pid, 0, fp_regs) < 0)
+                return -errno;
+        return 0;
+}
+
+int save_fpx_registers(int pid, unsigned long *fp_regs)
+{
+        if (ptrace(PTRACE_GETFPXREGS, pid, 0, fp_regs) < 0)
+                return -errno;
+        return 0;
+}
+
+int restore_fpx_registers(int pid, unsigned long *fp_regs)
+{
+        if (ptrace(PTRACE_SETFPXREGS, pid, 0, fp_regs) < 0)
+                return -errno;
+        return 0;
+}
+
+unsigned long get_thread_reg(int reg, jmp_buf *buf)
+{
+        switch (reg) {
+        case EIP:
+                return buf[0]->__eip;
+        case UESP:
+                return buf[0]->__esp;
+        case EBP:
+                return buf[0]->__ebp;
+        default:
+                printk(UM_KERN_ERR "get_thread_regs - unknown register %d\n",
+                       reg);
+                return 0;
+        }
+}
+
+int have_fpx_regs = 1;
+
+int get_fp_registers(int pid, unsigned long *regs)
+{
+        if (have_fpx_regs)
+                return save_fpx_registers(pid, regs);
+        else
+                return save_fp_registers(pid, regs);
+}
+
+int put_fp_registers(int pid, unsigned long *regs)
+{
+        if (have_fpx_regs)
+                return restore_fpx_registers(pid, regs);
+        else
+                return restore_fp_registers(pid, regs);
+}
+
+void arch_init_registers(int pid)
+{
+        struct user_fpxregs_struct fpx_regs;
+        int err;
+
+        err = ptrace(PTRACE_GETFPXREGS, pid, 0, &fpx_regs);
+        if (!err)
+                return;
+
+        if (errno != EIO)
+                panic("check_ptrace : PTRACE_GETFPXREGS failed, errno = %d",
+                      errno);
+
+        have_fpx_regs = 0;
+}