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 #include <asm-generic/vmlinux.lds.h>
   8
   9 #ifndef CONFIG_64BIT
  10 OUTPUT_FORMAT("elf32-s390", "elf32-s390", "elf32-s390")
  11 OUTPUT_ARCH(s390)
  12 ENTRY(_start)
  13 jiffies = jiffies_64 + 4;
  14 #else
  15 OUTPUT_FORMAT("elf64-s390", "elf64-s390", "elf64-s390")
  16 OUTPUT_ARCH(s390:64-bit)
  17 ENTRY(_start)
  18 jiffies = jiffies_64;
  19 #endif
  20
  21 PHDRS {
  22         text PT_LOAD FLAGS(5);  /* R_E */
  23         data PT_LOAD FLAGS(7);  /* RWE */
  24         note PT_NOTE FLAGS(0);  /* ___ */
  25 }
  26
  27 SECTIONS
  28 {
  29         . = 0x00000000;
  30         .text : {
  31         _text = .;              /* Text and read-only data */
  32                 HEAD_TEXT
  33                 TEXT_TEXT
  34                 SCHED_TEXT
  35                 LOCK_TEXT
  36                 KPROBES_TEXT
  37                 IRQENTRY_TEXT
  38                 *(.fixup)
  39                 *(.gnu.warning)
  40         } :text = 0x0700
  41
  42         _etext = .;             /* End of text section */
  43
  44         NOTES :text :note
  45
  46         RODATA
  47
  48 #ifdef CONFIG_SHARED_KERNEL
  49         . = ALIGN(0x100000);    /* VM shared segments are 1MB aligned */
  50 #endif
  51
  52         . = ALIGN(PAGE_SIZE);
  53         _eshared = .;           /* End of shareable data */
  54
  55         . = ALIGN(16);          /* Exception table */
  56         __ex_table : {
  57                 __start___ex_table = .;
  58                 *(__ex_table)
  59                 __stop___ex_table = .;
  60         } :data
  61
  62         .data : {               /* Data */
  63                 DATA_DATA
  64                 CONSTRUCTORS
  65         }
  66
  67         . = ALIGN(PAGE_SIZE);
  68         .data_nosave : {
  69         __nosave_begin = .;
  70                 *(.data.nosave)
  71         }
  72         . = ALIGN(PAGE_SIZE);
  73         __nosave_end = .;
  74
  75         . = ALIGN(PAGE_SIZE);
  76         .data.page_aligned : {
  77                 *(.data.idt)
  78         }
  79
  80         . = ALIGN(0x100);
  81         .data.cacheline_aligned : {
  82                 *(.data.cacheline_aligned)
  83         }
  84
  85         . = ALIGN(0x100);
  86         .data.read_mostly : {
  87                 *(.data.read_mostly)
  88         }
  89         _edata = .;             /* End of data section */
  90
  91         . = ALIGN(THREAD_SIZE); /* init_task */
  92         .data.init_task : {
  93                 *(.data.init_task)
  94         }
  95
  96         /* will be freed after init */
  97         . = ALIGN(PAGE_SIZE);   /* Init code and data */
  98         __init_begin = .;
  99         .init.text : {
 100                 _sinittext = .;
 101                 INIT_TEXT
 102                 _einittext = .;
 103         }
 104         /*
 105          * .exit.text is discarded at runtime, not link time,
 106          * to deal with references from __bug_table
 107         */
 108         .exit.text : {
 109                 EXIT_TEXT
 110         }
 111
 112         /* early.c uses stsi, which requires page aligned data. */
 113         . = ALIGN(PAGE_SIZE);
 114         .init.data : {
 115                 INIT_DATA
 116         }
 117         . = ALIGN(0x100);
 118         .init.setup : {
 119                 __setup_start = .;
 120                 *(.init.setup)
 121                 __setup_end = .;
 122         }
 123         .initcall.init : {
 124                 __initcall_start = .;
 125                 INITCALLS
 126                 __initcall_end = .;
 127         }
 128
 129         .con_initcall.init : {
 130                 __con_initcall_start = .;
 131                 *(.con_initcall.init)
 132                 __con_initcall_end = .;
 133         }
 134         SECURITY_INIT
 135
 136 #ifdef CONFIG_BLK_DEV_INITRD
 137         . = ALIGN(0x100);
 138         .init.ramfs : {
 139                 __initramfs_start = .;
 140                 *(.init.ramfs)
 141                 . = ALIGN(2);
 142                 __initramfs_end = .;
 143         }
 144 #endif
 145
 146         PERCPU(PAGE_SIZE)
 147         . = ALIGN(PAGE_SIZE);
 148         __init_end = .;         /* freed after init ends here */
 149
 150         /* BSS */
 151         .bss : {
 152                 __bss_start = .;
 153                 *(.bss)
 154                 . = ALIGN(2);
 155                 __bss_stop = .;
 156         }
 157
 158         _end = . ;
 159
 160         /* Sections to be discarded */
 161         /DISCARD/ : {
 162                 EXIT_DATA
 163                 *(.exitcall.exit)
 164         }
 165
 166         /* Debugging sections.  */
 167         STABS_DEBUG
 168         DWARF_DEBUG
 169 }