arch/s390/kernel/vmlinux.lds.S

   1 /* ld script to make s390 Linux kernel
   2  * Written by Martin Schwidefsky (schwidefsky@de.ibm.com)
   3  */
   4
   5 #include <asm/thread_info.h>
   6 #include <asm/page.h>
   7
   8 /*
   9  * Put .bss..swapper_pg_dir as the first thing in .bss. This will
  10  * make sure it has 16k alignment.
  11  */
  12 #define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir)
  13
  14 /* Handle ro_after_init data on our own. */
  15 #define RO_AFTER_INIT_DATA
  16
  17 #include <asm-generic/vmlinux.lds.h>
  18
  19 OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
  20 OUTPUT_ARCH(s390:64-bit)
  21 ENTRY(startup)
  22 jiffies = jiffies_64;
  23
  24 PHDRS {
  25         text PT_LOAD FLAGS(5);  /* R_E */
  26         data PT_LOAD FLAGS(7);  /* RWE */
  27         note PT_NOTE FLAGS(0);  /* ___ */
  28 }
  29
  30 SECTIONS
  31 {
  32         . = 0x00000000;
  33         .text : {
  34         _text = .;              /* Text and read-only data */
  35                 HEAD_TEXT
  36                 TEXT_TEXT
  37                 SCHED_TEXT
  38                 LOCK_TEXT
  39                 KPROBES_TEXT
  40                 IRQENTRY_TEXT
  41                 SOFTIRQENTRY_TEXT
  42                 *(.fixup)
  43                 *(.gnu.warning)
  44         } :text = 0x0700
  45
  46         _etext = .;             /* End of text section */
  47
  48         NOTES :text :note
  49
  50         .dummy : { *(.dummy) } :data
  51
  52         RO_DATA_SECTION(PAGE_SIZE)
  53
  54 #ifdef CONFIG_SHARED_KERNEL
  55         . = ALIGN(0x100000);    /* VM shared segments are 1MB aligned */
  56 #endif
  57
  58         . = ALIGN(PAGE_SIZE);
  59         _eshared = .;           /* End of shareable data */
  60         _sdata = .;             /* Start of data section */
  61
  62         . = ALIGN(PAGE_SIZE);
  63         __start_ro_after_init = .;
  64         .data..ro_after_init : {
  65                  *(.data..ro_after_init)
  66         }
  67         EXCEPTION_TABLE(16)
  68         . = ALIGN(PAGE_SIZE);
  69         __end_ro_after_init = .;
  70
  71         RW_DATA_SECTION(0x100, PAGE_SIZE, THREAD_SIZE)
  72
  73         _edata = .;             /* End of data section */
  74
  75         /* will be freed after init */
  76         . = ALIGN(PAGE_SIZE);   /* Init code and data */
  77         __init_begin = .;
  78
  79         INIT_TEXT_SECTION(PAGE_SIZE)
  80
  81         /*
  82          * .exit.text is discarded at runtime, not link time,
  83          * to deal with references from __bug_table
  84         */
  85         .exit.text : {
  86                 EXIT_TEXT
  87         }
  88
  89         .exit.data : {
  90                 EXIT_DATA
  91         }
  92
  93         /* early.c uses stsi, which requires page aligned data. */
  94         . = ALIGN(PAGE_SIZE);
  95         INIT_DATA_SECTION(0x100)
  96
  97         PERCPU_SECTION(0x100)
  98         . = ALIGN(PAGE_SIZE);
  99         __init_end = .;         /* freed after init ends here */
 100
 101         BSS_SECTION(PAGE_SIZE, 4 * PAGE_SIZE, PAGE_SIZE)
 102
 103         _end = . ;
 104
 105         /* Debugging sections.  */
 106         STABS_DEBUG
 107         DWARF_DEBUG
 108
 109         /* Sections to be discarded */
 110         DISCARDS
 111 }