Make do_execve() take a const filename pointer
[linux-3.10.git] / arch / ia64 / kernel / paravirt_patchlist.c
1 /******************************************************************************
2  * Copyright (c) 2008 Isaku Yamahata <yamahata at valinux co jp>
3  *                    VA Linux Systems Japan K.K.
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
7  * the Free Software Foundation; either version 2 of the License, or
8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
18  *
19  */
20
21 #include <linux/bug.h>
22 #include <linux/init.h>
23 #include <linux/kernel.h>
24 #include <asm/paravirt.h>
25
26 #define DECLARE(name)                                           \
27         extern unsigned long                                    \
28                 __ia64_native_start_gate_##name##_patchlist[];  \
29         extern unsigned long                                    \
30                 __ia64_native_end_gate_##name##_patchlist[]
31
32 DECLARE(fsyscall);
33 DECLARE(brl_fsys_bubble_down);
34 DECLARE(vtop);
35 DECLARE(mckinley_e9);
36
37 extern unsigned long __start_gate_section[];
38
39 #define ASSIGN(name)                                                        \
40         .start_##name##_patchlist =                                         \
41                 (unsigned long)__ia64_native_start_gate_##name##_patchlist, \
42         .end_##name##_patchlist =                                           \
43                 (unsigned long)__ia64_native_end_gate_##name##_patchlist
44
45 struct pv_patchdata pv_patchdata __initdata = {
46         ASSIGN(fsyscall),
47         ASSIGN(brl_fsys_bubble_down),
48         ASSIGN(vtop),
49         ASSIGN(mckinley_e9),
50
51         .gate_section = (void*)__start_gate_section,
52 };
53
54
55 unsigned long __init
56 paravirt_get_gate_patchlist(enum pv_gate_patchlist type)
57 {
58
59 #define CASE(NAME, name)                                        \
60         case PV_GATE_START_##NAME:                              \
61                 return pv_patchdata.start_##name##_patchlist;   \
62         case PV_GATE_END_##NAME:                                \
63                 return pv_patchdata.end_##name##_patchlist;     \
64
65         switch (type) {
66                 CASE(FSYSCALL, fsyscall);
67                 CASE(BRL_FSYS_BUBBLE_DOWN, brl_fsys_bubble_down);
68                 CASE(VTOP, vtop);
69                 CASE(MCKINLEY_E9, mckinley_e9);
70         default:
71                 BUG();
72                 break;
73         }
74         return 0;
75 }
76
77 void * __init
78 paravirt_get_gate_section(void)
79 {
80         return pv_patchdata.gate_section;
81 }