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-rw-r--r--arch/um/os-Linux/sys-x86_64/Makefile2
-rw-r--r--arch/um/os-Linux/sys-x86_64/registers.c75
2 files changed, 4 insertions, 73 deletions
diff --git a/arch/um/os-Linux/sys-x86_64/Makefile b/arch/um/os-Linux/sys-x86_64/Makefile
index 7955e061a678..eac8c0db3001 100644
--- a/arch/um/os-Linux/sys-x86_64/Makefile
+++ b/arch/um/os-Linux/sys-x86_64/Makefile
@@ -1,5 +1,5 @@
1# 1#
2# Copyright (C) 2000 Jeff Dike (jdike@karaya.com) 2# Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3# Licensed under the GPL 3# Licensed under the GPL
4# 4#
5 5
diff --git a/arch/um/os-Linux/sys-x86_64/registers.c b/arch/um/os-Linux/sys-x86_64/registers.c
index 9467315b8059..9bfa789992de 100644
--- a/arch/um/os-Linux/sys-x86_64/registers.c
+++ b/arch/um/os-Linux/sys-x86_64/registers.c
@@ -1,23 +1,15 @@
1/* 1/*
2 * Copyright (C) 2004 PathScale, Inc 2 * Copyright (C) 2006-2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL 3 * Licensed under the GPL
4 */ 4 */
5 5
6#include <errno.h> 6#include <errno.h>
7#include <sys/ptrace.h> 7#include <sys/ptrace.h>
8#include <string.h> 8#define __FRAME_OFFSETS
9#include "ptrace_user.h" 9#include <asm/ptrace.h>
10#include "uml-config.h"
11#include "skas_ptregs.h"
12#include "registers.h"
13#include "longjmp.h" 10#include "longjmp.h"
14#include "user.h" 11#include "user.h"
15 12
16/* These are set once at boot time and not changed thereafter */
17
18static unsigned long exec_regs[MAX_REG_NR];
19static unsigned long exec_fp_regs[HOST_FP_SIZE];
20
21int save_fp_registers(int pid, unsigned long *fp_regs) 13int save_fp_registers(int pid, unsigned long *fp_regs)
22{ 14{
23 if(ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0) 15 if(ptrace(PTRACE_GETFPREGS, pid, 0, fp_regs) < 0)
@@ -32,67 +24,6 @@ int restore_fp_registers(int pid, unsigned long *fp_regs)
32 return 0; 24 return 0;
33} 25}
34 26
35void init_thread_registers(union uml_pt_regs *to)
36{
37 memcpy(to->skas.regs, exec_regs, sizeof(to->skas.regs));
38 memcpy(to->skas.fp, exec_fp_regs, sizeof(to->skas.fp));
39}
40
41static int move_registers(int pid, int int_op, int fp_op,
42 union uml_pt_regs *regs)
43{
44 if(ptrace(int_op, pid, 0, regs->skas.regs) < 0)
45 return -errno;
46
47 if(ptrace(fp_op, pid, 0, regs->skas.fp) < 0)
48 return -errno;
49
50 return 0;
51}
52
53void save_registers(int pid, union uml_pt_regs *regs)
54{
55 int err;
56
57 err = move_registers(pid, PTRACE_GETREGS, PTRACE_GETFPREGS, regs);
58 if(err)
59 panic("save_registers - saving registers failed, errno = %d\n",
60 -err);
61}
62
63void restore_registers(int pid, union uml_pt_regs *regs)
64{
65 int err;
66
67 err = move_registers(pid, PTRACE_SETREGS, PTRACE_SETFPREGS, regs);
68 if(err)
69 panic("restore_registers - saving registers failed, "
70 "errno = %d\n", -err);
71}
72
73void init_registers(int pid)
74{
75 int err;
76
77 err = ptrace(PTRACE_GETREGS, pid, 0, exec_regs);
78 if(err)
79 panic("check_ptrace : PTRACE_GETREGS failed, errno = %d",
80 errno);
81
82 err = ptrace(PTRACE_GETFPREGS, pid, 0, exec_fp_regs);
83 if(err)
84 panic("check_ptrace : PTRACE_GETFPREGS failed, errno = %d",
85 errno);
86}
87
88void get_safe_registers(unsigned long *regs, unsigned long *fp_regs)
89{
90 memcpy(regs, exec_regs, sizeof(exec_regs));
91 if(fp_regs != NULL)
92 memcpy(fp_regs, exec_fp_regs,
93 HOST_FP_SIZE * sizeof(unsigned long));
94}
95
96unsigned long get_thread_reg(int reg, jmp_buf *buf) 27unsigned long get_thread_reg(int reg, jmp_buf *buf)
97{ 28{
98 switch(reg){ 29 switch(reg){