include/asm-generic/vmlinux.lds.h

   1 #ifndef LOAD_OFFSET
   2 #define LOAD_OFFSET 0
   3 #endif
   4
   5 #ifndef VMLINUX_SYMBOL
   6 #define VMLINUX_SYMBOL(_sym_) _sym_
   7 #endif
   8
   9 /* Align . to a 8 byte boundary equals to maximum function alignment. */
  10 #define ALIGN_FUNCTION()  . = ALIGN(8)
  11
  12 /* The actual configuration determine if the init/exit sections
  13  * are handled as text/data or they can be discarded (which
  14  * often happens at runtime)
  15  */
  16 #ifdef CONFIG_HOTPLUG
  17 #define DEV_KEEP(sec)    *(.dev##sec)
  18 #define DEV_DISCARD(sec)
  19 #else
  20 #define DEV_KEEP(sec)
  21 #define DEV_DISCARD(sec) *(.dev##sec)
  22 #endif
  23
  24 #ifdef CONFIG_HOTPLUG_CPU
  25 #define CPU_KEEP(sec)    *(.cpu##sec)
  26 #define CPU_DISCARD(sec)
  27 #else
  28 #define CPU_KEEP(sec)
  29 #define CPU_DISCARD(sec) *(.cpu##sec)
  30 #endif
  31
  32 #if defined(CONFIG_MEMORY_HOTPLUG)
  33 #define MEM_KEEP(sec)    *(.mem##sec)
  34 #define MEM_DISCARD(sec)
  35 #else
  36 #define MEM_KEEP(sec)
  37 #define MEM_DISCARD(sec) *(.mem##sec)
  38 #endif
  39
  40 #ifdef CONFIG_FTRACE_MCOUNT_RECORD
  41 #define MCOUNT_REC()    VMLINUX_SYMBOL(__start_mcount_loc) = .; \
  42                         *(__mcount_loc)                         \
  43                         VMLINUX_SYMBOL(__stop_mcount_loc) = .;
  44 #else
  45 #define MCOUNT_REC()
  46 #endif
  47
  48 #ifdef CONFIG_TRACE_BRANCH_PROFILING
  49 #define LIKELY_PROFILE()        VMLINUX_SYMBOL(__start_likely_profile) = .;   \
  50                                 *(_ftrace_likely)                             \
  51                                 VMLINUX_SYMBOL(__stop_likely_profile) = .;    \
  52                                 VMLINUX_SYMBOL(__start_unlikely_profile) = .; \
  53                                 *(_ftrace_unlikely)                           \
  54                                 VMLINUX_SYMBOL(__stop_unlikely_profile) = .;
  55 #else
  56 #define LIKELY_PROFILE()
  57 #endif
  58
  59 /* .data section */
  60 #define DATA_DATA                                                       \
  61         *(.data)                                                        \
  62         *(.data.init.refok)                                             \
  63         *(.ref.data)                                                    \
  64         DEV_KEEP(init.data)                                             \
  65         DEV_KEEP(exit.data)                                             \
  66         CPU_KEEP(init.data)                                             \
  67         CPU_KEEP(exit.data)                                             \
  68         MEM_KEEP(init.data)                                             \
  69         MEM_KEEP(exit.data)                                             \
  70         . = ALIGN(8);                                                   \
  71         VMLINUX_SYMBOL(__start___markers) = .;                          \
  72         *(__markers)                                                    \
  73         VMLINUX_SYMBOL(__stop___markers) = .;                           \
  74         VMLINUX_SYMBOL(__start___tracepoints) = .;                      \
  75         *(__tracepoints)                                                \
  76         VMLINUX_SYMBOL(__stop___tracepoints) = .;                       \
  77         LIKELY_PROFILE()
  78
  79 #define RO_DATA(align)                                                  \
  80         . = ALIGN((align));                                             \
  81         .rodata           : AT(ADDR(.rodata) - LOAD_OFFSET) {           \
  82                 VMLINUX_SYMBOL(__start_rodata) = .;                     \
  83                 *(.rodata) *(.rodata.*)                                 \
  84                 *(__vermagic)           /* Kernel version magic */      \
  85                 *(__markers_strings)    /* Markers: strings */          \
  86                 *(__tracepoints_strings)/* Tracepoints: strings */      \
  87         }                                                               \
  88                                                                         \
  89         .rodata1          : AT(ADDR(.rodata1) - LOAD_OFFSET) {          \
  90                 *(.rodata1)                                             \
  91         }                                                               \
  92                                                                         \
  93         BUG_TABLE                                                       \
  94                                                                         \
  95         /* PCI quirks */                                                \
  96         .pci_fixup        : AT(ADDR(.pci_fixup) - LOAD_OFFSET) {        \
  97                 VMLINUX_SYMBOL(__start_pci_fixups_early) = .;           \
  98                 *(.pci_fixup_early)                                     \
  99                 VMLINUX_SYMBOL(__end_pci_fixups_early) = .;             \
 100                 VMLINUX_SYMBOL(__start_pci_fixups_header) = .;          \
 101                 *(.pci_fixup_header)                                    \
 102                 VMLINUX_SYMBOL(__end_pci_fixups_header) = .;            \
 103                 VMLINUX_SYMBOL(__start_pci_fixups_final) = .;           \
 104                 *(.pci_fixup_final)                                     \
 105                 VMLINUX_SYMBOL(__end_pci_fixups_final) = .;             \
 106                 VMLINUX_SYMBOL(__start_pci_fixups_enable) = .;          \
 107                 *(.pci_fixup_enable)                                    \
 108                 VMLINUX_SYMBOL(__end_pci_fixups_enable) = .;            \
 109                 VMLINUX_SYMBOL(__start_pci_fixups_resume) = .;          \
 110                 *(.pci_fixup_resume)                                    \
 111                 VMLINUX_SYMBOL(__end_pci_fixups_resume) = .;            \
 112                 VMLINUX_SYMBOL(__start_pci_fixups_resume_early) = .;    \
 113                 *(.pci_fixup_resume_early)                              \
 114                 VMLINUX_SYMBOL(__end_pci_fixups_resume_early) = .;      \
 115                 VMLINUX_SYMBOL(__start_pci_fixups_suspend) = .;         \
 116                 *(.pci_fixup_suspend)                                   \
 117                 VMLINUX_SYMBOL(__end_pci_fixups_suspend) = .;           \
 118         }                                                               \
 119                                                                         \
 120         /* Built-in firmware blobs */                                   \
 121         .builtin_fw        : AT(ADDR(.builtin_fw) - LOAD_OFFSET) {      \
 122                 VMLINUX_SYMBOL(__start_builtin_fw) = .;                 \
 123                 *(.builtin_fw)                                          \
 124                 VMLINUX_SYMBOL(__end_builtin_fw) = .;                   \
 125         }                                                               \
 126                                                                         \
 127         /* RapidIO route ops */                                         \
 128         .rio_route        : AT(ADDR(.rio_route) - LOAD_OFFSET) {        \
 129                 VMLINUX_SYMBOL(__start_rio_route_ops) = .;              \
 130                 *(.rio_route_ops)                                       \
 131                 VMLINUX_SYMBOL(__end_rio_route_ops) = .;                \
 132         }                                                               \
 133                                                                         \
 134         TRACEDATA                                                       \
 135                                                                         \
 136         /* Kernel symbol table: Normal symbols */                       \
 137         __ksymtab         : AT(ADDR(__ksymtab) - LOAD_OFFSET) {         \
 138                 VMLINUX_SYMBOL(__start___ksymtab) = .;                  \
 139                 *(__ksymtab)                                            \
 140                 VMLINUX_SYMBOL(__stop___ksymtab) = .;                   \
 141         }                                                               \
 142                                                                         \
 143         /* Kernel symbol table: GPL-only symbols */                     \
 144         __ksymtab_gpl     : AT(ADDR(__ksymtab_gpl) - LOAD_OFFSET) {     \
 145                 VMLINUX_SYMBOL(__start___ksymtab_gpl) = .;              \
 146                 *(__ksymtab_gpl)                                        \
 147                 VMLINUX_SYMBOL(__stop___ksymtab_gpl) = .;               \
 148         }                                                               \
 149                                                                         \
 150         /* Kernel symbol table: Normal unused symbols */                \
 151         __ksymtab_unused  : AT(ADDR(__ksymtab_unused) - LOAD_OFFSET) {  \
 152                 VMLINUX_SYMBOL(__start___ksymtab_unused) = .;           \
 153                 *(__ksymtab_unused)                                     \
 154                 VMLINUX_SYMBOL(__stop___ksymtab_unused) = .;            \
 155         }                                                               \
 156                                                                         \
 157         /* Kernel symbol table: GPL-only unused symbols */              \
 158         __ksymtab_unused_gpl : AT(ADDR(__ksymtab_unused_gpl) - LOAD_OFFSET) { \
 159                 VMLINUX_SYMBOL(__start___ksymtab_unused_gpl) = .;       \
 160                 *(__ksymtab_unused_gpl)                                 \
 161                 VMLINUX_SYMBOL(__stop___ksymtab_unused_gpl) = .;        \
 162         }                                                               \
 163                                                                         \
 164         /* Kernel symbol table: GPL-future-only symbols */              \
 165         __ksymtab_gpl_future : AT(ADDR(__ksymtab_gpl_future) - LOAD_OFFSET) { \
 166                 VMLINUX_SYMBOL(__start___ksymtab_gpl_future) = .;       \
 167                 *(__ksymtab_gpl_future)                                 \
 168                 VMLINUX_SYMBOL(__stop___ksymtab_gpl_future) = .;        \
 169         }                                                               \
 170                                                                         \
 171         /* Kernel symbol table: Normal symbols */                       \
 172         __kcrctab         : AT(ADDR(__kcrctab) - LOAD_OFFSET) {         \
 173                 VMLINUX_SYMBOL(__start___kcrctab) = .;                  \
 174                 *(__kcrctab)                                            \
 175                 VMLINUX_SYMBOL(__stop___kcrctab) = .;                   \
 176         }                                                               \
 177                                                                         \
 178         /* Kernel symbol table: GPL-only symbols */                     \
 179         __kcrctab_gpl     : AT(ADDR(__kcrctab_gpl) - LOAD_OFFSET) {     \
 180                 VMLINUX_SYMBOL(__start___kcrctab_gpl) = .;              \
 181                 *(__kcrctab_gpl)                                        \
 182                 VMLINUX_SYMBOL(__stop___kcrctab_gpl) = .;               \
 183         }                                                               \
 184                                                                         \
 185         /* Kernel symbol table: Normal unused symbols */                \
 186         __kcrctab_unused  : AT(ADDR(__kcrctab_unused) - LOAD_OFFSET) {  \
 187                 VMLINUX_SYMBOL(__start___kcrctab_unused) = .;           \
 188                 *(__kcrctab_unused)                                     \
 189                 VMLINUX_SYMBOL(__stop___kcrctab_unused) = .;            \
 190         }                                                               \
 191                                                                         \
 192         /* Kernel symbol table: GPL-only unused symbols */              \
 193         __kcrctab_unused_gpl : AT(ADDR(__kcrctab_unused_gpl) - LOAD_OFFSET) { \
 194                 VMLINUX_SYMBOL(__start___kcrctab_unused_gpl) = .;       \
 195                 *(__kcrctab_unused_gpl)                                 \
 196                 VMLINUX_SYMBOL(__stop___kcrctab_unused_gpl) = .;        \
 197         }                                                               \
 198                                                                         \
 199         /* Kernel symbol table: GPL-future-only symbols */              \
 200         __kcrctab_gpl_future : AT(ADDR(__kcrctab_gpl_future) - LOAD_OFFSET) { \
 201                 VMLINUX_SYMBOL(__start___kcrctab_gpl_future) = .;       \
 202                 *(__kcrctab_gpl_future)                                 \
 203                 VMLINUX_SYMBOL(__stop___kcrctab_gpl_future) = .;        \
 204         }                                                               \
 205                                                                         \
 206         /* Kernel symbol table: strings */                              \
 207         __ksymtab_strings : AT(ADDR(__ksymtab_strings) - LOAD_OFFSET) { \
 208                 *(__ksymtab_strings)                                    \
 209         }                                                               \
 210                                                                         \
 211         /* __*init sections */                                          \
 212         __init_rodata : AT(ADDR(__init_rodata) - LOAD_OFFSET) {         \
 213                 *(.ref.rodata)                                          \
 214                 MCOUNT_REC()                                            \
 215                 DEV_KEEP(init.rodata)                                   \
 216                 DEV_KEEP(exit.rodata)                                   \
 217                 CPU_KEEP(init.rodata)                                   \
 218                 CPU_KEEP(exit.rodata)                                   \
 219                 MEM_KEEP(init.rodata)                                   \
 220                 MEM_KEEP(exit.rodata)                                   \
 221         }                                                               \
 222                                                                         \
 223         /* Built-in module parameters. */                               \
 224         __param : AT(ADDR(__param) - LOAD_OFFSET) {                     \
 225                 VMLINUX_SYMBOL(__start___param) = .;                    \
 226                 *(__param)                                              \
 227                 VMLINUX_SYMBOL(__stop___param) = .;                     \
 228                 . = ALIGN((align));                                     \
 229                 VMLINUX_SYMBOL(__end_rodata) = .;                       \
 230         }                                                               \
 231         . = ALIGN((align));
 232
 233 /* RODATA provided for backward compatibility.
 234  * All archs are supposed to use RO_DATA() */
 235 #define RODATA RO_DATA(4096)
 236
 237 #define SECURITY_INIT                                                   \
 238         .security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET) { \
 239                 VMLINUX_SYMBOL(__security_initcall_start) = .;          \
 240                 *(.security_initcall.init)                              \
 241                 VMLINUX_SYMBOL(__security_initcall_end) = .;            \
 242         }
 243
 244 /* .text section. Map to function alignment to avoid address changes
 245  * during second ld run in second ld pass when generating System.map */
 246 #define TEXT_TEXT                                                       \
 247                 ALIGN_FUNCTION();                                       \
 248                 *(.text.hot)                                            \
 249                 *(.text)                                                \
 250                 *(.ref.text)                                            \
 251                 *(.text.init.refok)                                     \
 252                 *(.exit.text.refok)                                     \
 253         DEV_KEEP(init.text)                                             \
 254         DEV_KEEP(exit.text)                                             \
 255         CPU_KEEP(init.text)                                             \
 256         CPU_KEEP(exit.text)                                             \
 257         MEM_KEEP(init.text)                                             \
 258         MEM_KEEP(exit.text)                                             \
 259                 *(.text.unlikely)
 260
 261
 262 /* sched.text is aling to function alignment to secure we have same
 263  * address even at second ld pass when generating System.map */
 264 #define SCHED_TEXT                                                      \
 265                 ALIGN_FUNCTION();                                       \
 266                 VMLINUX_SYMBOL(__sched_text_start) = .;                 \
 267                 *(.sched.text)                                          \
 268                 VMLINUX_SYMBOL(__sched_text_end) = .;
 269
 270 /* spinlock.text is aling to function alignment to secure we have same
 271  * address even at second ld pass when generating System.map */
 272 #define LOCK_TEXT                                                       \
 273                 ALIGN_FUNCTION();                                       \
 274                 VMLINUX_SYMBOL(__lock_text_start) = .;                  \
 275                 *(.spinlock.text)                                       \
 276                 VMLINUX_SYMBOL(__lock_text_end) = .;
 277
 278 #define KPROBES_TEXT                                                    \
 279                 ALIGN_FUNCTION();                                       \
 280                 VMLINUX_SYMBOL(__kprobes_text_start) = .;               \
 281                 *(.kprobes.text)                                        \
 282                 VMLINUX_SYMBOL(__kprobes_text_end) = .;
 283
 284 /* Section used for early init (in .S files) */
 285 #define HEAD_TEXT  *(.head.text)
 286
 287 /* init and exit section handling */
 288 #define INIT_DATA                                                       \
 289         *(.init.data)                                                   \
 290         DEV_DISCARD(init.data)                                          \
 291         DEV_DISCARD(init.rodata)                                        \
 292         CPU_DISCARD(init.data)                                          \
 293         CPU_DISCARD(init.rodata)                                        \
 294         MEM_DISCARD(init.data)                                          \
 295         MEM_DISCARD(init.rodata)                                        \
 296         /* implement dynamic printk debug */                            \
 297         VMLINUX_SYMBOL(__start___verbose_strings) = .;                  \
 298         *(__verbose_strings)                                            \
 299         VMLINUX_SYMBOL(__stop___verbose_strings) = .;                   \
 300         . = ALIGN(8);                                                   \
 301         VMLINUX_SYMBOL(__start___verbose) = .;                          \
 302         *(__verbose)                                                    \
 303         VMLINUX_SYMBOL(__stop___verbose) = .;
 304
 305 #define INIT_TEXT                                                       \
 306         *(.init.text)                                                   \
 307         DEV_DISCARD(init.text)                                          \
 308         CPU_DISCARD(init.text)                                          \
 309         MEM_DISCARD(init.text)
 310
 311 #define EXIT_DATA                                                       \
 312         *(.exit.data)                                                   \
 313         DEV_DISCARD(exit.data)                                          \
 314         DEV_DISCARD(exit.rodata)                                        \
 315         CPU_DISCARD(exit.data)                                          \
 316         CPU_DISCARD(exit.rodata)                                        \
 317         MEM_DISCARD(exit.data)                                          \
 318         MEM_DISCARD(exit.rodata)
 319
 320 #define EXIT_TEXT                                                       \
 321         *(.exit.text)                                                   \
 322         DEV_DISCARD(exit.text)                                          \
 323         CPU_DISCARD(exit.text)                                          \
 324         MEM_DISCARD(exit.text)
 325
 326                 /* DWARF debug sections.
 327                 Symbols in the DWARF debugging sections are relative to
 328                 the beginning of the section so we begin them at 0.  */
 329 #define DWARF_DEBUG                                                     \
 330                 /* DWARF 1 */                                           \
 331                 .debug          0 : { *(.debug) }                       \
 332                 .line           0 : { *(.line) }                        \
 333                 /* GNU DWARF 1 extensions */                            \
 334                 .debug_srcinfo  0 : { *(.debug_srcinfo) }               \
 335                 .debug_sfnames  0 : { *(.debug_sfnames) }               \
 336                 /* DWARF 1.1 and DWARF 2 */                             \
 337                 .debug_aranges  0 : { *(.debug_aranges) }               \
 338                 .debug_pubnames 0 : { *(.debug_pubnames) }              \
 339                 /* DWARF 2 */                                           \
 340                 .debug_info     0 : { *(.debug_info                     \
 341                                 .gnu.linkonce.wi.*) }                   \
 342                 .debug_abbrev   0 : { *(.debug_abbrev) }                \
 343                 .debug_line     0 : { *(.debug_line) }                  \
 344                 .debug_frame    0 : { *(.debug_frame) }                 \
 345                 .debug_str      0 : { *(.debug_str) }                   \
 346                 .debug_loc      0 : { *(.debug_loc) }                   \
 347                 .debug_macinfo  0 : { *(.debug_macinfo) }               \
 348                 /* SGI/MIPS DWARF 2 extensions */                       \
 349                 .debug_weaknames 0 : { *(.debug_weaknames) }            \
 350                 .debug_funcnames 0 : { *(.debug_funcnames) }            \
 351                 .debug_typenames 0 : { *(.debug_typenames) }            \
 352                 .debug_varnames  0 : { *(.debug_varnames) }             \
 353
 354                 /* Stabs debugging sections.  */
 355 #define STABS_DEBUG                                                     \
 356                 .stab 0 : { *(.stab) }                                  \
 357                 .stabstr 0 : { *(.stabstr) }                            \
 358                 .stab.excl 0 : { *(.stab.excl) }                        \
 359                 .stab.exclstr 0 : { *(.stab.exclstr) }                  \
 360                 .stab.index 0 : { *(.stab.index) }                      \
 361                 .stab.indexstr 0 : { *(.stab.indexstr) }                \
 362                 .comment 0 : { *(.comment) }
 363
 364 #ifdef CONFIG_GENERIC_BUG
 365 #define BUG_TABLE                                                       \
 366         . = ALIGN(8);                                                   \
 367         __bug_table : AT(ADDR(__bug_table) - LOAD_OFFSET) {             \
 368                 VMLINUX_SYMBOL(__start___bug_table) = .;                \
 369                 *(__bug_table)                                          \
 370                 VMLINUX_SYMBOL(__stop___bug_table) = .;                 \
 371         }
 372 #else
 373 #define BUG_TABLE
 374 #endif
 375
 376 #ifdef CONFIG_PM_TRACE
 377 #define TRACEDATA                                                       \
 378         . = ALIGN(4);                                                   \
 379         .tracedata : AT(ADDR(.tracedata) - LOAD_OFFSET) {               \
 380                 VMLINUX_SYMBOL(__tracedata_start) = .;                  \
 381                 *(.tracedata)                                           \
 382                 VMLINUX_SYMBOL(__tracedata_end) = .;                    \
 383         }
 384 #else
 385 #define TRACEDATA
 386 #endif
 387
 388 #define NOTES                                                           \
 389         .notes : AT(ADDR(.notes) - LOAD_OFFSET) {                       \
 390                 VMLINUX_SYMBOL(__start_notes) = .;                      \
 391                 *(.note.*)                                              \
 392                 VMLINUX_SYMBOL(__stop_notes) = .;                       \
 393         }
 394
 395 #define INITCALLS                                                       \
 396         *(.initcallearly.init)                                          \
 397         VMLINUX_SYMBOL(__early_initcall_end) = .;                       \
 398         *(.initcall0.init)                                              \
 399         *(.initcall0s.init)                                             \
 400         *(.initcall1.init)                                              \
 401         *(.initcall1s.init)                                             \
 402         *(.initcall2.init)                                              \
 403         *(.initcall2s.init)                                             \
 404         *(.initcall3.init)                                              \
 405         *(.initcall3s.init)                                             \
 406         *(.initcall4.init)                                              \
 407         *(.initcall4s.init)                                             \
 408         *(.initcall5.init)                                              \
 409         *(.initcall5s.init)                                             \
 410         *(.initcallrootfs.init)                                         \
 411         *(.initcall6.init)                                              \
 412         *(.initcall6s.init)                                             \
 413         *(.initcall7.init)                                              \
 414         *(.initcall7s.init)
 415
 416 #define PERCPU(align)                                                   \
 417         . = ALIGN(align);                                               \
 418         VMLINUX_SYMBOL(__per_cpu_start) = .;                            \
 419         .data.percpu  : AT(ADDR(.data.percpu) - LOAD_OFFSET) {          \
 420                 *(.data.percpu.page_aligned)                            \
 421                 *(.data.percpu)                                         \
 422                 *(.data.percpu.shared_aligned)                          \
 423         }                                                               \
 424         VMLINUX_SYMBOL(__per_cpu_end) = .;