1/*
2 * Linker script for gate DSO.  The gate pages are an ELF shared object
3 * prelinked to its virtual address, with only one read-only segment and
4 * one execute-only segment (both fit in one page).  This script controls
5 * its layout.
6 */
7
8#include <asm/page.h>
9#include "paravirt_patchlist.h"
10
11SECTIONS
12{
13	. = GATE_ADDR + SIZEOF_HEADERS;
14
15	.hash			: { *(.hash) }		:readable
16	.gnu.hash		: { *(.gnu.hash) }
17	.dynsym			: { *(.dynsym) }
18	.dynstr			: { *(.dynstr) }
19	.gnu.version		: { *(.gnu.version) }
20	.gnu.version_d		: { *(.gnu.version_d) }
21	.gnu.version_r		: { *(.gnu.version_r) }
22
23	.note			: { *(.note*) }		:readable	:note
24
25	.dynamic		: { *(.dynamic) }	:readable	:dynamic
26
27	/*
28	 * This linker script is used both with -r and with -shared.  For
29	 * the layouts to match, we need to skip more than enough space for
30	 * the dynamic symbol table et al.  If this amount is insufficient,
31	 * ld -shared will barf.  Just increase it here.
32	 */
33	. = GATE_ADDR + 0x600;
34
35	.data..patch		: {
36		__paravirt_start_gate_mckinley_e9_patchlist = .;
37		*(.data..patch.mckinley_e9)
38		__paravirt_end_gate_mckinley_e9_patchlist = .;
39
40		__paravirt_start_gate_vtop_patchlist = .;
41		*(.data..patch.vtop)
42		__paravirt_end_gate_vtop_patchlist = .;
43
44		__paravirt_start_gate_fsyscall_patchlist = .;
45		*(.data..patch.fsyscall_table)
46		__paravirt_end_gate_fsyscall_patchlist = .;
47
48		__paravirt_start_gate_brl_fsys_bubble_down_patchlist = .;
49		*(.data..patch.brl_fsys_bubble_down)
50		__paravirt_end_gate_brl_fsys_bubble_down_patchlist = .;
51	}						:readable
52
53	.IA_64.unwind_info	: { *(.IA_64.unwind_info*) }
54	.IA_64.unwind		: { *(.IA_64.unwind*) }	:readable	:unwind
55#ifdef HAVE_BUGGY_SEGREL
56	.text (GATE_ADDR + PAGE_SIZE) : { *(.text) *(.text.*) }	:readable
57#else
58	. = ALIGN(PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1));
59	.text			: { *(.text) *(.text.*) }	:epc
60#endif
61
62	/DISCARD/		: {
63		*(.got.plt) *(.got)
64		*(.data .data.* .gnu.linkonce.d.*)
65		*(.dynbss)
66		*(.bss .bss.* .gnu.linkonce.b.*)
67		*(__ex_table)
68		*(__mca_table)
69	}
70}
71
72/*
73 * ld does not recognize this name token; use the constant.
74 */
75#define	PT_IA_64_UNWIND	0x70000001
76
77/*
78 * We must supply the ELF program headers explicitly to get just one
79 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
80 */
81PHDRS
82{
83	readable	PT_LOAD	FILEHDR	PHDRS	FLAGS(4);	/* PF_R */
84#ifndef HAVE_BUGGY_SEGREL
85	epc		PT_LOAD	FILEHDR PHDRS	FLAGS(1);	/* PF_X */
86#endif
87	dynamic		PT_DYNAMIC		FLAGS(4);	/* PF_R */
88	note		PT_NOTE			FLAGS(4);	/* PF_R */
89	unwind		PT_IA_64_UNWIND;
90}
91
92/*
93 * This controls what symbols we export from the DSO.
94 */
95VERSION
96{
97	LINUX_2.5 {
98	global:
99		__kernel_syscall_via_break;
100		__kernel_syscall_via_epc;
101		__kernel_sigtramp;
102
103	local: *;
104	};
105}
106
107/* The ELF entry point can be used to set the AT_SYSINFO value.  */
108ENTRY(__kernel_syscall_via_epc)
109