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/page.h>
   6 #include <asm-generic/vmlinux.lds.h>
   7
   8 #ifndef CONFIG_64BIT
   9 OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
  10 OUTPUT_ARCH(s390)
  11 ENTRY(_start)
  12 jiffies = jiffies_64 + 4;
  13 #else
  14 OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
  15 OUTPUT_ARCH(s390:64-bit)
  16 ENTRY(_start)
  17 jiffies = jiffies_64;
  18 #endif
  19
  20 PHDRS {
  21         text PT_LOAD FLAGS(5);  /* R_E */
  22         data PT_LOAD FLAGS(7);  /* RWE */
  23         note PT_NOTE FLAGS(0);  /* ___ */
  24 }
  25
  26 SECTIONS
  27 {
  28         . = 0x00000000;
  29         .text : {
  30         _text = .;              /* Text and read-only data */
  31                 *(.text.head)
  32         TEXT_TEXT
  33                 SCHED_TEXT
  34                 LOCK_TEXT
  35                 KPROBES_TEXT
  36                 *(.fixup)
  37                 *(.gnu.warning)
  38         } = 0x0700
  39
  40         _etext = .;             /* End of text section */
  41
  42         NOTES :text :note
  43         BUG_TABLE :text
  44
  45         RODATA
  46
  47 #ifdef CONFIG_SHARED_KERNEL
  48         . = ALIGN(0x100000);    /* VM shared segments are 1MB aligned */
  49 #endif
  50
  51         . = ALIGN(PAGE_SIZE);
  52         _eshared = .;           /* End of shareable data */
  53
  54         . = ALIGN(16);          /* Exception table */
  55         __ex_table : {
  56                 __start___ex_table = .;
  57                 *(__ex_table)
  58                 __stop___ex_table = .;
  59         }
  60
  61         .data : {               /* Data */
  62                 DATA_DATA
  63                 CONSTRUCTORS
  64         }
  65
  66         . = ALIGN(PAGE_SIZE);
  67         .data_nosave : {
  68         __nosave_begin = .;
  69                 *(.data.nosave)
  70         }
  71         . = ALIGN(PAGE_SIZE);
  72         __nosave_end = .;
  73
  74         . = ALIGN(PAGE_SIZE);
  75         .data.page_aligned : {
  76                 *(.data.idt)
  77         }
  78
  79         . = ALIGN(0x100);
  80         .data.cacheline_aligned : {
  81                 *(.data.cacheline_aligned)
  82         }
  83
  84         . = ALIGN(0x100);
  85         .data.read_mostly : {
  86                 *(.data.read_mostly)
  87         }
  88         _edata = .;             /* End of data section */
  89
  90         . = ALIGN(2 * PAGE_SIZE);       /* init_task */
  91         .data.init_task : {
  92                 *(.data.init_task)
  93         }
  94
  95         /* will be freed after init */
  96         . = ALIGN(PAGE_SIZE);   /* Init code and data */
  97         __init_begin = .;
  98         .init.text : {
  99                 _sinittext = .;
 100                 INIT_TEXT
 101                 _einittext = .;
 102         }
 103         /*
 104          * .exit.text is discarded at runtime, not link time,
 105          * to deal with references from __bug_table
 106         */
 107         .exit.text : {
 108                 EXIT_TEXT
 109         }
 110
 111         .init.data : {
 112                 INIT_DATA
 113         }
 114         . = ALIGN(0x100);
 115         .init.setup : {
 116                 __setup_start = .;
 117                 *(.init.setup)
 118                 __setup_end = .;
 119         }
 120         .initcall.init : {
 121                 __initcall_start = .;
 122                 INITCALLS
 123                 __initcall_end = .;
 124         }
 125
 126         .con_initcall.init : {
 127                 __con_initcall_start = .;
 128                 *(.con_initcall.init)
 129                 __con_initcall_end = .;
 130         }
 131         SECURITY_INIT
 132
 133 #ifdef CONFIG_BLK_DEV_INITRD
 134         . = ALIGN(0x100);
 135         .init.ramfs : {
 136                 __initramfs_start = .;
 137                 *(.init.ramfs)
 138                 . = ALIGN(2);
 139                 __initramfs_end = .;
 140         }
 141 #endif
 142
 143         PERCPU(PAGE_SIZE)
 144         . = ALIGN(PAGE_SIZE);
 145         __init_end = .;         /* freed after init ends here */
 146
 147         /* BSS */
 148         .bss : {
 149                 __bss_start = .;
 150                 *(.bss)
 151                 . = ALIGN(2);
 152                 __bss_stop = .;
 153         }
 154
 155         _end = . ;
 156
 157         /* Sections to be discarded */
 158         /DISCARD/ : {
 159                 EXIT_DATA
 160                 *(.exitcall.exit)
 161         }
 162
 163         /* Debugging sections.  */
 164         STABS_DEBUG
 165         DWARF_DEBUG
 166 }