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