1/*
2 * Linker script for gate DSO.  The gate pages are an ELF shared object prelinked to its
3 * virtual address, with only one read-only segment and one execute-only segment (both fit
4 * in one page).  This script controls its layout.
5 */
6
7
8#include <asm/system.h>
9
10SECTIONS
11{
12  . = GATE_ADDR + SIZEOF_HEADERS;
13
14  .hash				: { *(.hash) }				:readable
15  .gnu.hash			: { *(.gnu.hash) }
16  .dynsym			: { *(.dynsym) }
17  .dynstr			: { *(.dynstr) }
18  .gnu.version			: { *(.gnu.version) }
19  .gnu.version_d		: { *(.gnu.version_d) }
20  .gnu.version_r		: { *(.gnu.version_r) }
21  .dynamic			: { *(.dynamic) }			:readable :dynamic
22
23  /*
24   * This linker script is used both with -r and with -shared.  For the layouts to match,
25   * we need to skip more than enough space for the dynamic symbol table et al.  If this
26   * amount is insufficient, ld -shared will barf.  Just increase it here.
27   */
28  . = GATE_ADDR + 0x500;
29
30  .data.patch			: {
31				    __start_gate_mckinley_e9_patchlist = .;
32				    *(.data.patch.mckinley_e9)
33				    __end_gate_mckinley_e9_patchlist = .;
34
35				    __start_gate_vtop_patchlist = .;
36				    *(.data.patch.vtop)
37				    __end_gate_vtop_patchlist = .;
38
39				    __start_gate_fsyscall_patchlist = .;
40				    *(.data.patch.fsyscall_table)
41				    __end_gate_fsyscall_patchlist = .;
42
43				    __start_gate_brl_fsys_bubble_down_patchlist = .;
44				    *(.data.patch.brl_fsys_bubble_down)
45				    __end_gate_brl_fsys_bubble_down_patchlist = .;
46  }									:readable
47  .IA_64.unwind_info		: { *(.IA_64.unwind_info*) }
48  .IA_64.unwind			: { *(.IA_64.unwind*) }			:readable :unwind
49#ifdef HAVE_BUGGY_SEGREL
50  .text (GATE_ADDR + PAGE_SIZE)	: { *(.text) *(.text.*) }		:readable
51#else
52  . = ALIGN (PERCPU_PAGE_SIZE) + (. & (PERCPU_PAGE_SIZE - 1));
53  .text				: { *(.text) *(.text.*) }		:epc
54#endif
55
56  /DISCARD/			: {
57  	*(.got.plt) *(.got)
58	*(.data .data.* .gnu.linkonce.d.*)
59	*(.dynbss)
60	*(.bss .bss.* .gnu.linkonce.b.*)
61	*(__ex_table)
62	*(__mca_table)
63  }
64}
65
66/*
67 * We must supply the ELF program headers explicitly to get just one
68 * PT_LOAD segment, and set the flags explicitly to make segments read-only.
69 */
70PHDRS
71{
72  readable  PT_LOAD	FILEHDR	PHDRS	FLAGS(4);	/* PF_R */
73#ifndef HAVE_BUGGY_SEGREL
74  epc	    PT_LOAD	FILEHDR PHDRS	FLAGS(1);	/* PF_X */
75#endif
76  dynamic   PT_DYNAMIC			FLAGS(4);	/* PF_R */
77  unwind    0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */
78}
79
80/*
81 * This controls what symbols we export from the DSO.
82 */
83VERSION
84{
85  LINUX_2.5 {
86    global:
87	__kernel_syscall_via_break;
88	__kernel_syscall_via_epc;
89	__kernel_sigtramp;
90
91    local: *;
92  };
93}
94
95/* The ELF entry point can be used to set the AT_SYSINFO value.  */
96ENTRY(__kernel_syscall_via_epc)
97