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