scripts/module.lds.S

   1 /*
   2  * Common module linker script, always used when linking a module.
   3  * Archs are free to supply their own linker scripts.  ld will
   4  * combine them automatically.
   5  */
   6 #ifdef CONFIG_CFI_CLANG
   7 # include <asm/page.h>
   8 # define ALIGN_CFI              ALIGN(PAGE_SIZE)
   9 # define SANITIZER_DISCARDS     *(.eh_frame)
  10 #else
  11 # define ALIGN_CFI
  12 # define SANITIZER_DISCARDS
  13 #endif
  14
  15 SECTIONS {
  16         /DISCARD/ : {
  17                 *(.discard)
  18                 *(.discard.*)
  19                 SANITIZER_DISCARDS
  20         }
  21
  22         __ksymtab               0 : { *(SORT(___ksymtab+*)) }
  23         __ksymtab_gpl           0 : { *(SORT(___ksymtab_gpl+*)) }
  24         __kcrctab               0 : { *(SORT(___kcrctab+*)) }
  25         __kcrctab_gpl           0 : { *(SORT(___kcrctab_gpl+*)) }
  26
  27         .ctors                  0 : ALIGN(8) { *(SORT(.ctors.*)) *(.ctors) }
  28         .init_array             0 : ALIGN(8) { *(SORT(.init_array.*)) *(.init_array) }
  29
  30         __jump_table            0 : ALIGN(8) { KEEP(*(__jump_table)) }
  31
  32         __patchable_function_entries : { *(__patchable_function_entries) }
  33
  34 #ifdef CONFIG_LTO_CLANG
  35         /*
  36          * With CONFIG_LTO_CLANG, LLD always enables -fdata-sections and
  37          * -ffunction-sections, which increases the size of the final module.
  38          * Merge the split sections in the final binary.
  39          */
  40         .bss : {
  41                 *(.bss .bss.[0-9a-zA-Z_]*)
  42                 *(.bss..L*)
  43         }
  44
  45         .data : {
  46                 *(.data .data.[0-9a-zA-Z_]*)
  47                 *(.data..L*)
  48         }
  49
  50         .rodata : {
  51                 *(.rodata .rodata.[0-9a-zA-Z_]*)
  52                 *(.rodata..L*)
  53         }
  54
  55         /*
  56          * With CONFIG_CFI_CLANG, we assume __cfi_check is at the beginning
  57          * of the .text section, and is aligned to PAGE_SIZE.
  58          */
  59         .text : ALIGN_CFI {
  60                 *(.text.__cfi_check)
  61                 *(.text .text.[0-9a-zA-Z_]* .text..L.cfi*)
  62         }
  63 #endif
  64 }
  65
  66 /* bring in arch-specific sections */
  67 #include <asm/module.lds.h>