Tim Abbott | c80d471 | 2009-04-25 22:10:56 -0400 | [diff] [blame] | 1 | #include <linux/section-names.h> |
| 2 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 3 | #ifndef LOAD_OFFSET |
| 4 | #define LOAD_OFFSET 0 |
| 5 | #endif |
| 6 | |
| 7 | #ifndef VMLINUX_SYMBOL |
| 8 | #define VMLINUX_SYMBOL(_sym_) _sym_ |
| 9 | #endif |
| 10 | |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 11 | /* Align . to a 8 byte boundary equals to maximum function alignment. */ |
| 12 | #define ALIGN_FUNCTION() . = ALIGN(8) |
| 13 | |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 14 | /* The actual configuration determine if the init/exit sections |
| 15 | * are handled as text/data or they can be discarded (which |
| 16 | * often happens at runtime) |
| 17 | */ |
| 18 | #ifdef CONFIG_HOTPLUG |
| 19 | #define DEV_KEEP(sec) *(.dev##sec) |
| 20 | #define DEV_DISCARD(sec) |
| 21 | #else |
| 22 | #define DEV_KEEP(sec) |
| 23 | #define DEV_DISCARD(sec) *(.dev##sec) |
| 24 | #endif |
| 25 | |
| 26 | #ifdef CONFIG_HOTPLUG_CPU |
| 27 | #define CPU_KEEP(sec) *(.cpu##sec) |
| 28 | #define CPU_DISCARD(sec) |
| 29 | #else |
| 30 | #define CPU_KEEP(sec) |
| 31 | #define CPU_DISCARD(sec) *(.cpu##sec) |
| 32 | #endif |
| 33 | |
Adrian Bunk | 1a3fb6d | 2008-01-24 22:20:18 +0100 | [diff] [blame] | 34 | #if defined(CONFIG_MEMORY_HOTPLUG) |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 35 | #define MEM_KEEP(sec) *(.mem##sec) |
| 36 | #define MEM_DISCARD(sec) |
| 37 | #else |
| 38 | #define MEM_KEEP(sec) |
| 39 | #define MEM_DISCARD(sec) *(.mem##sec) |
| 40 | #endif |
| 41 | |
Steven Rostedt | 8da3821 | 2008-08-14 15:45:07 -0400 | [diff] [blame] | 42 | #ifdef CONFIG_FTRACE_MCOUNT_RECORD |
| 43 | #define MCOUNT_REC() VMLINUX_SYMBOL(__start_mcount_loc) = .; \ |
| 44 | *(__mcount_loc) \ |
| 45 | VMLINUX_SYMBOL(__stop_mcount_loc) = .; |
| 46 | #else |
| 47 | #define MCOUNT_REC() |
| 48 | #endif |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 49 | |
Steven Rostedt | 2ed84ee | 2008-11-12 15:24:24 -0500 | [diff] [blame] | 50 | #ifdef CONFIG_TRACE_BRANCH_PROFILING |
Steven Rostedt | 45b7974 | 2008-11-21 00:40:40 -0500 | [diff] [blame] | 51 | #define LIKELY_PROFILE() VMLINUX_SYMBOL(__start_annotated_branch_profile) = .; \ |
| 52 | *(_ftrace_annotated_branch) \ |
| 53 | VMLINUX_SYMBOL(__stop_annotated_branch_profile) = .; |
Steven Rostedt | 1f0d69a | 2008-11-12 00:14:39 -0500 | [diff] [blame] | 54 | #else |
| 55 | #define LIKELY_PROFILE() |
| 56 | #endif |
| 57 | |
Steven Rostedt | 2bcd521 | 2008-11-21 01:30:54 -0500 | [diff] [blame] | 58 | #ifdef CONFIG_PROFILE_ALL_BRANCHES |
| 59 | #define BRANCH_PROFILE() VMLINUX_SYMBOL(__start_branch_profile) = .; \ |
| 60 | *(_ftrace_branch) \ |
| 61 | VMLINUX_SYMBOL(__stop_branch_profile) = .; |
| 62 | #else |
| 63 | #define BRANCH_PROFILE() |
| 64 | #endif |
| 65 | |
Steven Rostedt | b77e38a | 2009-02-24 10:21:36 -0500 | [diff] [blame] | 66 | #ifdef CONFIG_EVENT_TRACER |
| 67 | #define FTRACE_EVENTS() VMLINUX_SYMBOL(__start_ftrace_events) = .; \ |
| 68 | *(_ftrace_events) \ |
| 69 | VMLINUX_SYMBOL(__stop_ftrace_events) = .; |
| 70 | #else |
| 71 | #define FTRACE_EVENTS() |
| 72 | #endif |
| 73 | |
Lai Jiangshan | 1ba28e0 | 2009-03-06 17:21:48 +0100 | [diff] [blame] | 74 | #ifdef CONFIG_TRACING |
| 75 | #define TRACE_PRINTKS() VMLINUX_SYMBOL(__start___trace_bprintk_fmt) = .; \ |
| 76 | *(__trace_printk_fmt) /* Trace_printk fmt' pointer */ \ |
| 77 | VMLINUX_SYMBOL(__stop___trace_bprintk_fmt) = .; |
| 78 | #else |
| 79 | #define TRACE_PRINTKS() |
| 80 | #endif |
| 81 | |
Frederic Weisbecker | bed1ffc | 2009-03-13 15:42:11 +0100 | [diff] [blame] | 82 | #ifdef CONFIG_FTRACE_SYSCALLS |
| 83 | #define TRACE_SYSCALLS() VMLINUX_SYMBOL(__start_syscalls_metadata) = .; \ |
| 84 | *(__syscalls_metadata) \ |
| 85 | VMLINUX_SYMBOL(__stop_syscalls_metadata) = .; |
| 86 | #else |
| 87 | #define TRACE_SYSCALLS() |
| 88 | #endif |
| 89 | |
Sam Ravnborg | ca96725 | 2007-05-17 13:38:44 +0200 | [diff] [blame] | 90 | /* .data section */ |
| 91 | #define DATA_DATA \ |
Sam Ravnborg | 0e0d314 | 2007-05-17 20:14:48 +0200 | [diff] [blame] | 92 | *(.data) \ |
Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 93 | *(.ref.data) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 94 | DEV_KEEP(init.data) \ |
| 95 | DEV_KEEP(exit.data) \ |
| 96 | CPU_KEEP(init.data) \ |
| 97 | CPU_KEEP(exit.data) \ |
| 98 | MEM_KEEP(init.data) \ |
| 99 | MEM_KEEP(exit.data) \ |
Mathieu Desnoyers | 8256e47 | 2007-10-18 23:41:06 -0700 | [diff] [blame] | 100 | . = ALIGN(8); \ |
| 101 | VMLINUX_SYMBOL(__start___markers) = .; \ |
| 102 | *(__markers) \ |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 103 | VMLINUX_SYMBOL(__stop___markers) = .; \ |
Mathieu Desnoyers | 7e066fb | 2008-11-14 17:47:47 -0500 | [diff] [blame] | 104 | . = ALIGN(32); \ |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 105 | VMLINUX_SYMBOL(__start___tracepoints) = .; \ |
| 106 | *(__tracepoints) \ |
Steven Rostedt | 1f0d69a | 2008-11-12 00:14:39 -0500 | [diff] [blame] | 107 | VMLINUX_SYMBOL(__stop___tracepoints) = .; \ |
Jason Baron | e9d376f | 2009-02-05 11:51:38 -0500 | [diff] [blame] | 108 | /* implement dynamic printk debug */ \ |
| 109 | . = ALIGN(8); \ |
| 110 | VMLINUX_SYMBOL(__start___verbose) = .; \ |
| 111 | *(__verbose) \ |
| 112 | VMLINUX_SYMBOL(__stop___verbose) = .; \ |
Steven Rostedt | 2bcd521 | 2008-11-21 01:30:54 -0500 | [diff] [blame] | 113 | LIKELY_PROFILE() \ |
Steven Rostedt | b77e38a | 2009-02-24 10:21:36 -0500 | [diff] [blame] | 114 | BRANCH_PROFILE() \ |
Ingo Molnar | 8a20d84 | 2009-03-09 10:09:06 +0100 | [diff] [blame] | 115 | TRACE_PRINTKS() \ |
Frederic Weisbecker | bed1ffc | 2009-03-13 15:42:11 +0100 | [diff] [blame] | 116 | FTRACE_EVENTS() \ |
| 117 | TRACE_SYSCALLS() |
Sam Ravnborg | ca96725 | 2007-05-17 13:38:44 +0200 | [diff] [blame] | 118 | |
Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 119 | #define RO_DATA(align) \ |
| 120 | . = ALIGN((align)); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | .rodata : AT(ADDR(.rodata) - LOAD_OFFSET) { \ |
Vivek Goyal | 6569580 | 2006-12-07 02:14:03 +0100 | [diff] [blame] | 122 | VMLINUX_SYMBOL(__start_rodata) = .; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 123 | *(.rodata) *(.rodata.*) \ |
| 124 | *(__vermagic) /* Kernel version magic */ \ |
Mathieu Desnoyers | 8256e47 | 2007-10-18 23:41:06 -0700 | [diff] [blame] | 125 | *(__markers_strings) /* Markers: strings */ \ |
Mathieu Desnoyers | 97e1c18 | 2008-07-18 12:16:16 -0400 | [diff] [blame] | 126 | *(__tracepoints_strings)/* Tracepoints: strings */ \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 127 | } \ |
| 128 | \ |
| 129 | .rodata1 : AT(ADDR(.rodata1) - LOAD_OFFSET) { \ |
| 130 | *(.rodata1) \ |
| 131 | } \ |
| 132 | \ |
Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 133 | BUG_TABLE \ |
| 134 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 135 | /* PCI quirks */ \ |
| 136 | .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ |
| 137 | VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ |
| 138 | *(.pci_fixup_early) \ |
| 139 | VMLINUX_SYMBOL(__end_pci_fixups_early) = .; \ |
| 140 | VMLINUX_SYMBOL(__start_pci_fixups_header) = .; \ |
| 141 | *(.pci_fixup_header) \ |
| 142 | VMLINUX_SYMBOL(__end_pci_fixups_header) = .; \ |
| 143 | VMLINUX_SYMBOL(__start_pci_fixups_final) = .; \ |
| 144 | *(.pci_fixup_final) \ |
| 145 | VMLINUX_SYMBOL(__end_pci_fixups_final) = .; \ |
| 146 | VMLINUX_SYMBOL(__start_pci_fixups_enable) = .; \ |
| 147 | *(.pci_fixup_enable) \ |
| 148 | VMLINUX_SYMBOL(__end_pci_fixups_enable) = .; \ |
Alan Cox | 1597cac | 2006-12-04 15:14:45 -0800 | [diff] [blame] | 149 | VMLINUX_SYMBOL(__start_pci_fixups_resume) = .; \ |
| 150 | *(.pci_fixup_resume) \ |
| 151 | VMLINUX_SYMBOL(__end_pci_fixups_resume) = .; \ |
Rafael J. Wysocki | e1a2a51 | 2008-05-15 21:51:31 +0200 | [diff] [blame] | 152 | VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .; \ |
| 153 | *(.pci_fixup_resume_early) \ |
| 154 | VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .; \ |
| 155 | VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .; \ |
| 156 | *(.pci_fixup_suspend) \ |
| 157 | VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .; \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 158 | } \ |
| 159 | \ |
David Woodhouse | 5658c76 | 2008-05-23 13:52:42 +0100 | [diff] [blame] | 160 | /* Built-in firmware blobs */ \ |
| 161 | .builtin_fw : AT(ADDR(.builtin_fw) - LOAD_OFFSET) { \ |
| 162 | VMLINUX_SYMBOL(__start_builtin_fw) = .; \ |
| 163 | *(.builtin_fw) \ |
| 164 | VMLINUX_SYMBOL(__end_builtin_fw) = .; \ |
| 165 | } \ |
| 166 | \ |
Matt Porter | 394b701 | 2005-11-07 01:00:15 -0800 | [diff] [blame] | 167 | /* RapidIO route ops */ \ |
| 168 | .rio_route : AT(ADDR(.rio_route) - LOAD_OFFSET) { \ |
| 169 | VMLINUX_SYMBOL(__start_rio_route_ops) = .; \ |
| 170 | *(.rio_route_ops) \ |
| 171 | VMLINUX_SYMBOL(__end_rio_route_ops) = .; \ |
| 172 | } \ |
| 173 | \ |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 174 | TRACEDATA \ |
| 175 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 176 | /* Kernel symbol table: Normal symbols */ \ |
| 177 | __ksymtab : AT(ADDR(__ksymtab) - LOAD_OFFSET) { \ |
| 178 | VMLINUX_SYMBOL(__start___ksymtab) = .; \ |
| 179 | *(__ksymtab) \ |
| 180 | VMLINUX_SYMBOL(__stop___ksymtab) = .; \ |
| 181 | } \ |
| 182 | \ |
| 183 | /* Kernel symbol table: GPL-only symbols */ \ |
| 184 | __ksymtab_gpl : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) { \ |
| 185 | VMLINUX_SYMBOL(__start___ksymtab_gpl) = .; \ |
| 186 | *(__ksymtab_gpl) \ |
| 187 | VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .; \ |
| 188 | } \ |
| 189 | \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 190 | /* Kernel symbol table: Normal unused symbols */ \ |
| 191 | __ksymtab_unused : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) { \ |
| 192 | VMLINUX_SYMBOL(__start___ksymtab_unused) = .; \ |
| 193 | *(__ksymtab_unused) \ |
| 194 | VMLINUX_SYMBOL(__stop___ksymtab_unused) = .; \ |
| 195 | } \ |
| 196 | \ |
| 197 | /* Kernel symbol table: GPL-only unused symbols */ \ |
| 198 | __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \ |
| 199 | VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .; \ |
| 200 | *(__ksymtab_unused_gpl) \ |
| 201 | VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .; \ |
| 202 | } \ |
| 203 | \ |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 204 | /* Kernel symbol table: GPL-future-only symbols */ \ |
| 205 | __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \ |
| 206 | VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .; \ |
| 207 | *(__ksymtab_gpl_future) \ |
| 208 | VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .; \ |
| 209 | } \ |
| 210 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 211 | /* Kernel symbol table: Normal symbols */ \ |
| 212 | __kcrctab : AT(ADDR(__kcrctab) - LOAD_OFFSET) { \ |
| 213 | VMLINUX_SYMBOL(__start___kcrctab) = .; \ |
| 214 | *(__kcrctab) \ |
| 215 | VMLINUX_SYMBOL(__stop___kcrctab) = .; \ |
| 216 | } \ |
| 217 | \ |
| 218 | /* Kernel symbol table: GPL-only symbols */ \ |
| 219 | __kcrctab_gpl : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) { \ |
| 220 | VMLINUX_SYMBOL(__start___kcrctab_gpl) = .; \ |
| 221 | *(__kcrctab_gpl) \ |
| 222 | VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .; \ |
| 223 | } \ |
| 224 | \ |
Arjan van de Ven | f71d20e | 2006-06-28 04:26:45 -0700 | [diff] [blame] | 225 | /* Kernel symbol table: Normal unused symbols */ \ |
| 226 | __kcrctab_unused : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) { \ |
| 227 | VMLINUX_SYMBOL(__start___kcrctab_unused) = .; \ |
| 228 | *(__kcrctab_unused) \ |
| 229 | VMLINUX_SYMBOL(__stop___kcrctab_unused) = .; \ |
| 230 | } \ |
| 231 | \ |
| 232 | /* Kernel symbol table: GPL-only unused symbols */ \ |
| 233 | __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \ |
| 234 | VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .; \ |
| 235 | *(__kcrctab_unused_gpl) \ |
| 236 | VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .; \ |
| 237 | } \ |
| 238 | \ |
Greg Kroah-Hartman | 9f28bb7 | 2006-03-20 13:17:13 -0800 | [diff] [blame] | 239 | /* Kernel symbol table: GPL-future-only symbols */ \ |
| 240 | __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \ |
| 241 | VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .; \ |
| 242 | *(__kcrctab_gpl_future) \ |
| 243 | VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .; \ |
| 244 | } \ |
| 245 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 246 | /* Kernel symbol table: strings */ \ |
| 247 | __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \ |
| 248 | *(__ksymtab_strings) \ |
| 249 | } \ |
| 250 | \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 251 | /* __*init sections */ \ |
| 252 | __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) { \ |
Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 253 | *(.ref.rodata) \ |
Steven Rostedt | 8da3821 | 2008-08-14 15:45:07 -0400 | [diff] [blame] | 254 | MCOUNT_REC() \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 255 | DEV_KEEP(init.rodata) \ |
| 256 | DEV_KEEP(exit.rodata) \ |
| 257 | CPU_KEEP(init.rodata) \ |
| 258 | CPU_KEEP(exit.rodata) \ |
| 259 | MEM_KEEP(init.rodata) \ |
| 260 | MEM_KEEP(exit.rodata) \ |
| 261 | } \ |
| 262 | \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 263 | /* Built-in module parameters. */ \ |
| 264 | __param : AT(ADDR(__param) - LOAD_OFFSET) { \ |
| 265 | VMLINUX_SYMBOL(__start___param) = .; \ |
| 266 | *(__param) \ |
| 267 | VMLINUX_SYMBOL(__stop___param) = .; \ |
Arjan van de Ven | edeed30 | 2008-01-30 13:34:08 +0100 | [diff] [blame] | 268 | . = ALIGN((align)); \ |
Vivek Goyal | 6569580 | 2006-12-07 02:14:03 +0100 | [diff] [blame] | 269 | VMLINUX_SYMBOL(__end_rodata) = .; \ |
Marcelo Tosatti | 7583ddf | 2006-09-27 01:51:02 -0700 | [diff] [blame] | 270 | } \ |
Sam Ravnborg | 4096b46 | 2007-05-29 21:29:00 +0200 | [diff] [blame] | 271 | . = ALIGN((align)); |
| 272 | |
| 273 | /* RODATA provided for backward compatibility. |
| 274 | * All archs are supposed to use RO_DATA() */ |
| 275 | #define RODATA RO_DATA(4096) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 276 | |
| 277 | #define SECURITY_INIT \ |
Eric W. Biederman | 60bad7f | 2005-06-25 14:57:46 -0700 | [diff] [blame] | 278 | .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 279 | VMLINUX_SYMBOL(__security_initcall_start) = .; \ |
| 280 | *(.security_initcall.init) \ |
| 281 | VMLINUX_SYMBOL(__security_initcall_end) = .; \ |
| 282 | } |
| 283 | |
Sam Ravnborg | 7664709 | 2007-05-13 00:31:33 +0200 | [diff] [blame] | 284 | /* .text section. Map to function alignment to avoid address changes |
| 285 | * during second ld run in second ld pass when generating System.map */ |
| 286 | #define TEXT_TEXT \ |
| 287 | ALIGN_FUNCTION(); \ |
Jan Beulich | fb5e2b3 | 2008-06-18 12:36:01 +0100 | [diff] [blame] | 288 | *(.text.hot) \ |
Sam Ravnborg | 0e0d314 | 2007-05-17 20:14:48 +0200 | [diff] [blame] | 289 | *(.text) \ |
Sam Ravnborg | 312b148 | 2008-01-28 20:21:15 +0100 | [diff] [blame] | 290 | *(.ref.text) \ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 291 | DEV_KEEP(init.text) \ |
| 292 | DEV_KEEP(exit.text) \ |
| 293 | CPU_KEEP(init.text) \ |
| 294 | CPU_KEEP(exit.text) \ |
| 295 | MEM_KEEP(init.text) \ |
Jan Beulich | fb5e2b3 | 2008-06-18 12:36:01 +0100 | [diff] [blame] | 296 | MEM_KEEP(exit.text) \ |
| 297 | *(.text.unlikely) |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 298 | |
Sam Ravnborg | 7664709 | 2007-05-13 00:31:33 +0200 | [diff] [blame] | 299 | |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 300 | /* sched.text is aling to function alignment to secure we have same |
| 301 | * address even at second ld pass when generating System.map */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 302 | #define SCHED_TEXT \ |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 303 | ALIGN_FUNCTION(); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 304 | VMLINUX_SYMBOL(__sched_text_start) = .; \ |
| 305 | *(.sched.text) \ |
| 306 | VMLINUX_SYMBOL(__sched_text_end) = .; |
| 307 | |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 308 | /* spinlock.text is aling to function alignment to secure we have same |
| 309 | * address even at second ld pass when generating System.map */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 310 | #define LOCK_TEXT \ |
Sam Ravnborg | 6d30e3a | 2005-07-14 20:15:44 +0000 | [diff] [blame] | 311 | ALIGN_FUNCTION(); \ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 312 | VMLINUX_SYMBOL(__lock_text_start) = .; \ |
| 313 | *(.spinlock.text) \ |
| 314 | VMLINUX_SYMBOL(__lock_text_end) = .; |
Prasanna S Panchamukhi | d0aaff9 | 2005-09-06 15:19:26 -0700 | [diff] [blame] | 315 | |
| 316 | #define KPROBES_TEXT \ |
| 317 | ALIGN_FUNCTION(); \ |
| 318 | VMLINUX_SYMBOL(__kprobes_text_start) = .; \ |
| 319 | *(.kprobes.text) \ |
| 320 | VMLINUX_SYMBOL(__kprobes_text_end) = .; |
Paolo 'Blaisorblade' Giarrusso | a7d0c21 | 2005-09-10 19:44:54 +0200 | [diff] [blame] | 321 | |
Frederic Weisbecker | a0343e8 | 2008-12-09 23:53:16 +0100 | [diff] [blame] | 322 | #ifdef CONFIG_FUNCTION_GRAPH_TRACER |
| 323 | #define IRQENTRY_TEXT \ |
| 324 | ALIGN_FUNCTION(); \ |
| 325 | VMLINUX_SYMBOL(__irqentry_text_start) = .; \ |
| 326 | *(.irqentry.text) \ |
| 327 | VMLINUX_SYMBOL(__irqentry_text_end) = .; |
| 328 | #else |
| 329 | #define IRQENTRY_TEXT |
| 330 | #endif |
| 331 | |
Sam Ravnborg | 37c514e | 2008-02-19 21:00:18 +0100 | [diff] [blame] | 332 | /* Section used for early init (in .S files) */ |
Tim Abbott | c80d471 | 2009-04-25 22:10:56 -0400 | [diff] [blame] | 333 | #define HEAD_TEXT *(HEAD_TEXT_SECTION) |
Sam Ravnborg | 37c514e | 2008-02-19 21:00:18 +0100 | [diff] [blame] | 334 | |
Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 335 | /* init and exit section handling */ |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 336 | #define INIT_DATA \ |
| 337 | *(.init.data) \ |
| 338 | DEV_DISCARD(init.data) \ |
| 339 | DEV_DISCARD(init.rodata) \ |
| 340 | CPU_DISCARD(init.data) \ |
| 341 | CPU_DISCARD(init.rodata) \ |
| 342 | MEM_DISCARD(init.data) \ |
Jason Baron | e9d376f | 2009-02-05 11:51:38 -0500 | [diff] [blame] | 343 | MEM_DISCARD(init.rodata) |
Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 344 | |
Sam Ravnborg | eb8f689 | 2008-01-20 20:07:28 +0100 | [diff] [blame] | 345 | #define INIT_TEXT \ |
| 346 | *(.init.text) \ |
| 347 | DEV_DISCARD(init.text) \ |
| 348 | CPU_DISCARD(init.text) \ |
| 349 | MEM_DISCARD(init.text) |
| 350 | |
| 351 | #define EXIT_DATA \ |
| 352 | *(.exit.data) \ |
| 353 | DEV_DISCARD(exit.data) \ |
| 354 | DEV_DISCARD(exit.rodata) \ |
| 355 | CPU_DISCARD(exit.data) \ |
| 356 | CPU_DISCARD(exit.rodata) \ |
| 357 | MEM_DISCARD(exit.data) \ |
| 358 | MEM_DISCARD(exit.rodata) |
| 359 | |
| 360 | #define EXIT_TEXT \ |
| 361 | *(.exit.text) \ |
| 362 | DEV_DISCARD(exit.text) \ |
| 363 | CPU_DISCARD(exit.text) \ |
| 364 | MEM_DISCARD(exit.text) |
Sam Ravnborg | 01ba2bd | 2008-01-20 14:15:03 +0100 | [diff] [blame] | 365 | |
Paolo 'Blaisorblade' Giarrusso | a7d0c21 | 2005-09-10 19:44:54 +0200 | [diff] [blame] | 366 | /* DWARF debug sections. |
| 367 | Symbols in the DWARF debugging sections are relative to |
| 368 | the beginning of the section so we begin them at 0. */ |
| 369 | #define DWARF_DEBUG \ |
| 370 | /* DWARF 1 */ \ |
| 371 | .debug 0 : { *(.debug) } \ |
| 372 | .line 0 : { *(.line) } \ |
| 373 | /* GNU DWARF 1 extensions */ \ |
| 374 | .debug_srcinfo 0 : { *(.debug_srcinfo) } \ |
| 375 | .debug_sfnames 0 : { *(.debug_sfnames) } \ |
| 376 | /* DWARF 1.1 and DWARF 2 */ \ |
| 377 | .debug_aranges 0 : { *(.debug_aranges) } \ |
| 378 | .debug_pubnames 0 : { *(.debug_pubnames) } \ |
| 379 | /* DWARF 2 */ \ |
| 380 | .debug_info 0 : { *(.debug_info \ |
| 381 | .gnu.linkonce.wi.*) } \ |
| 382 | .debug_abbrev 0 : { *(.debug_abbrev) } \ |
| 383 | .debug_line 0 : { *(.debug_line) } \ |
| 384 | .debug_frame 0 : { *(.debug_frame) } \ |
| 385 | .debug_str 0 : { *(.debug_str) } \ |
| 386 | .debug_loc 0 : { *(.debug_loc) } \ |
| 387 | .debug_macinfo 0 : { *(.debug_macinfo) } \ |
| 388 | /* SGI/MIPS DWARF 2 extensions */ \ |
| 389 | .debug_weaknames 0 : { *(.debug_weaknames) } \ |
| 390 | .debug_funcnames 0 : { *(.debug_funcnames) } \ |
| 391 | .debug_typenames 0 : { *(.debug_typenames) } \ |
| 392 | .debug_varnames 0 : { *(.debug_varnames) } \ |
| 393 | |
| 394 | /* Stabs debugging sections. */ |
| 395 | #define STABS_DEBUG \ |
| 396 | .stab 0 : { *(.stab) } \ |
| 397 | .stabstr 0 : { *(.stabstr) } \ |
| 398 | .stab.excl 0 : { *(.stab.excl) } \ |
| 399 | .stab.exclstr 0 : { *(.stab.exclstr) } \ |
| 400 | .stab.index 0 : { *(.stab.index) } \ |
| 401 | .stab.indexstr 0 : { *(.stab.indexstr) } \ |
| 402 | .comment 0 : { *(.comment) } |
Jeremy Fitzhardinge | 9c9b8b3 | 2006-09-25 23:32:26 -0700 | [diff] [blame] | 403 | |
Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 404 | #ifdef CONFIG_GENERIC_BUG |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 405 | #define BUG_TABLE \ |
| 406 | . = ALIGN(8); \ |
| 407 | __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) { \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 408 | VMLINUX_SYMBOL(__start___bug_table) = .; \ |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 409 | *(__bug_table) \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 410 | VMLINUX_SYMBOL(__stop___bug_table) = .; \ |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 411 | } |
Jan Beulich | 6360b1f | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 412 | #else |
| 413 | #define BUG_TABLE |
| 414 | #endif |
Jeremy Fitzhardinge | 7664c5a | 2006-12-08 02:36:19 -0800 | [diff] [blame] | 415 | |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 416 | #ifdef CONFIG_PM_TRACE |
| 417 | #define TRACEDATA \ |
| 418 | . = ALIGN(4); \ |
| 419 | .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) { \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 420 | VMLINUX_SYMBOL(__tracedata_start) = .; \ |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 421 | *(.tracedata) \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 422 | VMLINUX_SYMBOL(__tracedata_end) = .; \ |
Jan Beulich | 63687a5 | 2008-05-12 15:44:41 +0200 | [diff] [blame] | 423 | } |
| 424 | #else |
| 425 | #define TRACEDATA |
| 426 | #endif |
| 427 | |
Jeremy Fitzhardinge | 9c9b8b3 | 2006-09-25 23:32:26 -0700 | [diff] [blame] | 428 | #define NOTES \ |
Roland McGrath | cbe8712 | 2007-07-19 01:48:36 -0700 | [diff] [blame] | 429 | .notes : AT(ADDR(.notes) - LOAD_OFFSET) { \ |
| 430 | VMLINUX_SYMBOL(__start_notes) = .; \ |
| 431 | *(.note.*) \ |
| 432 | VMLINUX_SYMBOL(__stop_notes) = .; \ |
| 433 | } |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 434 | |
| 435 | #define INITCALLS \ |
Eduard - Gabriel Munteanu | c2147a5 | 2008-07-25 19:45:11 -0700 | [diff] [blame] | 436 | *(.initcallearly.init) \ |
Yoshinori Sato | c6de0026 | 2008-07-31 00:07:29 -0700 | [diff] [blame] | 437 | VMLINUX_SYMBOL(__early_initcall_end) = .; \ |
Linus Torvalds | b3438f8 | 2006-11-20 11:47:18 -0800 | [diff] [blame] | 438 | *(.initcall0.init) \ |
| 439 | *(.initcall0s.init) \ |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 440 | *(.initcall1.init) \ |
Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 441 | *(.initcall1s.init) \ |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 442 | *(.initcall2.init) \ |
Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 443 | *(.initcall2s.init) \ |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 444 | *(.initcall3.init) \ |
Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 445 | *(.initcall3s.init) \ |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 446 | *(.initcall4.init) \ |
Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 447 | *(.initcall4s.init) \ |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 448 | *(.initcall5.init) \ |
Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 449 | *(.initcall5s.init) \ |
Linus Torvalds | 8d610dd | 2006-12-11 12:12:04 -0800 | [diff] [blame] | 450 | *(.initcallrootfs.init) \ |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 451 | *(.initcall6.init) \ |
Andrew Morton | 735a7ff | 2006-10-27 11:42:37 -0700 | [diff] [blame] | 452 | *(.initcall6s.init) \ |
| 453 | *(.initcall7.init) \ |
| 454 | *(.initcall7s.init) |
Andrew Morton | 61ce1ef | 2006-10-27 11:41:44 -0700 | [diff] [blame] | 455 | |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 456 | /** |
Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 457 | * PERCPU_VADDR - define output section for percpu area |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 458 | * @vaddr: explicit base address (optional) |
| 459 | * @phdr: destination PHDR (optional) |
| 460 | * |
| 461 | * Macro which expands to output section for percpu area. If @vaddr |
| 462 | * is not blank, it specifies explicit base address and all percpu |
| 463 | * symbols will be offset from the given address. If blank, @vaddr |
| 464 | * always equals @laddr + LOAD_OFFSET. |
| 465 | * |
| 466 | * @phdr defines the output PHDR to use if not blank. Be warned that |
| 467 | * output PHDR is sticky. If @phdr is specified, the next output |
| 468 | * section in the linker script will go there too. @phdr should have |
| 469 | * a leading colon. |
| 470 | * |
Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 471 | * Note that this macros defines __per_cpu_load as an absolute symbol. |
| 472 | * If there is no need to put the percpu section at a predetermined |
| 473 | * address, use PERCPU(). |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 474 | */ |
| 475 | #define PERCPU_VADDR(vaddr, phdr) \ |
Ingo Molnar | dba3d36 | 2009-01-29 17:10:12 +0100 | [diff] [blame] | 476 | VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
| 477 | .data.percpu vaddr : AT(VMLINUX_SYMBOL(__per_cpu_load) \ |
Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 478 | - LOAD_OFFSET) { \ |
| 479 | VMLINUX_SYMBOL(__per_cpu_start) = .; \ |
Brian Gerst | 0bd74fa | 2009-01-19 12:21:27 +0900 | [diff] [blame] | 480 | *(.data.percpu.first) \ |
Eric Dumazet | 63cc8c7 | 2008-05-12 15:44:40 +0200 | [diff] [blame] | 481 | *(.data.percpu.page_aligned) \ |
Fenghua Yu | 5fb7dc3 | 2007-07-19 01:48:12 -0700 | [diff] [blame] | 482 | *(.data.percpu) \ |
| 483 | *(.data.percpu.shared_aligned) \ |
Tejun Heo | 6b7c38d | 2009-01-19 12:21:28 +0900 | [diff] [blame] | 484 | VMLINUX_SYMBOL(__per_cpu_end) = .; \ |
| 485 | } phdr \ |
Ingo Molnar | dba3d36 | 2009-01-29 17:10:12 +0100 | [diff] [blame] | 486 | . = VMLINUX_SYMBOL(__per_cpu_load) + SIZEOF(.data.percpu); |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 487 | |
| 488 | /** |
| 489 | * PERCPU - define output section for percpu area, simple version |
| 490 | * @align: required alignment |
| 491 | * |
| 492 | * Align to @align and outputs output section for percpu area. This |
| 493 | * macro doesn't maniuplate @vaddr or @phdr and __per_cpu_load and |
| 494 | * __per_cpu_start will be identical. |
Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 495 | * |
| 496 | * This macro is equivalent to ALIGN(align); PERCPU_VADDR( , ) except |
| 497 | * that __per_cpu_load is defined as a relative symbol against |
| 498 | * .data.percpu which is required for relocatable x86_32 |
| 499 | * configuration. |
Tejun Heo | 3e5d8f9 | 2009-01-13 20:41:35 +0900 | [diff] [blame] | 500 | */ |
| 501 | #define PERCPU(align) \ |
| 502 | . = ALIGN(align); \ |
Tejun Heo | 3ac6cff | 2009-01-30 16:32:22 +0900 | [diff] [blame] | 503 | .data.percpu : AT(ADDR(.data.percpu) - LOAD_OFFSET) { \ |
| 504 | VMLINUX_SYMBOL(__per_cpu_load) = .; \ |
| 505 | VMLINUX_SYMBOL(__per_cpu_start) = .; \ |
| 506 | *(.data.percpu.first) \ |
| 507 | *(.data.percpu.page_aligned) \ |
| 508 | *(.data.percpu) \ |
| 509 | *(.data.percpu.shared_aligned) \ |
| 510 | VMLINUX_SYMBOL(__per_cpu_end) = .; \ |
| 511 | } |