arch/mips/kernel/vmlinux.lds.S

   1 #include <asm/asm-offsets.h>
   2 #include <asm-generic/vmlinux.lds.h>
   3
   4 #undef mips
   5 #define mips mips
   6 OUTPUT_ARCH(mips)
   7 ENTRY(kernel_entry)
   8 PHDRS {
   9         text PT_LOAD FLAGS(7);  /* RWX */
  10         note PT_NOTE FLAGS(4);  /* R__ */
  11 }
  12 jiffies = JIFFIES;
  13
  14 SECTIONS
  15 {
  16 #ifdef CONFIG_BOOT_ELF64
  17         /* Read-only sections, merged into text segment: */
  18         /* . = 0xc000000000000000; */
  19
  20         /* This is the value for an Origin kernel, taken from an IRIX kernel.  */
  21         /* . = 0xc00000000001c000; */
  22
  23         /* Set the vaddr for the text segment to a value
  24          *   >= 0xa800 0000 0001 9000 if no symmon is going to configured
  25          *   >= 0xa800 0000 0030 0000 otherwise
  26          */
  27
  28         /* . = 0xa800000000300000; */
  29         . = 0xffffffff80300000;
  30 #endif
  31         . = LOADADDR;
  32         /* read-only */
  33         _text = .;      /* Text and read-only data */
  34         .text : {
  35                 TEXT_TEXT
  36                 SCHED_TEXT
  37                 LOCK_TEXT
  38                 KPROBES_TEXT
  39                 *(.text.*)
  40                 *(.fixup)
  41                 *(.gnu.warning)
  42         } :text = 0
  43         _etext = .;     /* End of text section */
  44
  45         /* Exception table */
  46         . = ALIGN(16);
  47         __ex_table : {
  48                 __start___ex_table = .;
  49                 *(__ex_table)
  50                 __stop___ex_table = .;
  51         }
  52
  53         /* Exception table for data bus errors */
  54         __dbe_table : {
  55                 __start___dbe_table = .;
  56                 *(__dbe_table)
  57                 __stop___dbe_table = .;
  58         }
  59
  60         NOTES :text :note
  61         .dummy : { *(.dummy) } :text
  62
  63         RODATA
  64
  65         /* writeable */
  66         .data : {       /* Data */
  67                 . = . + DATAOFFSET;             /* for CONFIG_MAPPED_KERNEL */
  68                 /*
  69                  * This ALIGN is needed as a workaround for a bug a
  70                  * gcc bug upto 4.1 which limits the maximum alignment
  71                  * to at most 32kB and results in the following
  72                  * warning:
  73                  *
  74                  *  CC      arch/mips/kernel/init_task.o
  75                  * arch/mips/kernel/init_task.c:30: warning: alignment
  76                  * of ‘init_thread_union’ is greater than maximum
  77                  * object file alignment.  Using 32768
  78                  */
  79                 . = ALIGN(_PAGE_SIZE);
  80                 *(.data.init_task)
  81
  82                 DATA_DATA
  83                 CONSTRUCTORS
  84         }
  85         _gp = . + 0x8000;
  86         .lit8 : {
  87                 *(.lit8)
  88         }
  89         .lit4 : {
  90                 *(.lit4)
  91         }
  92         /* We want the small data sections together, so single-instruction offsets
  93            can access them all, and initialized data all before uninitialized, so
  94            we can shorten the on-disk segment size.  */
  95         .sdata : {
  96                 *(.sdata)
  97         }
  98
  99         . = ALIGN(_PAGE_SIZE);
 100         .data_nosave : {
 101                 __nosave_begin = .;
 102                 *(.data.nosave)
 103         }
 104         . = ALIGN(_PAGE_SIZE);
 105         __nosave_end = .;
 106
 107         . = ALIGN(1 << CONFIG_MIPS_L1_CACHE_SHIFT);
 108         .data.cacheline_aligned : {
 109                 *(.data.cacheline_aligned)
 110         }
 111         _edata =  .;                    /* End of data section */
 112
 113         /* will be freed after init */
 114         . = ALIGN(_PAGE_SIZE);          /* Init code and data */
 115         __init_begin = .;
 116         .init.text : {
 117                 _sinittext = .;
 118                 INIT_TEXT
 119                 _einittext = .;
 120         }
 121         .init.data : {
 122                 INIT_DATA
 123         }
 124         . = ALIGN(16);
 125         .init.setup : {
 126                 __setup_start = .;
 127                 *(.init.setup)
 128                 __setup_end = .;
 129         }
 130
 131         .initcall.init : {
 132                 __initcall_start = .;
 133                 INITCALLS
 134                 __initcall_end = .;
 135         }
 136
 137         .con_initcall.init : {
 138                 __con_initcall_start = .;
 139                 *(.con_initcall.init)
 140                 __con_initcall_end = .;
 141         }
 142         SECURITY_INIT
 143
 144         /* .exit.text is discarded at runtime, not link time, to deal with
 145          * references from .rodata
 146          */
 147         .exit.text : {
 148                 EXIT_TEXT
 149         }
 150         .exit.data : {
 151                 EXIT_DATA
 152         }
 153 #if defined(CONFIG_BLK_DEV_INITRD)
 154         . = ALIGN(_PAGE_SIZE);
 155         .init.ramfs : {
 156                 __initramfs_start = .;
 157                 *(.init.ramfs)
 158                 __initramfs_end = .;
 159         }
 160 #endif
 161         PERCPU(_PAGE_SIZE)
 162         . = ALIGN(_PAGE_SIZE);
 163         __init_end = .;
 164         /* freed after init ends here */
 165
 166         __bss_start = .;        /* BSS */
 167         .sbss  : {
 168                 *(.sbss)
 169                 *(.scommon)
 170         }
 171         .bss : {
 172                 *(.bss)
 173                 *(COMMON)
 174         }
 175         __bss_stop = .;
 176
 177         _end = . ;
 178
 179         /* These mark the ABI of the kernel for debuggers.  */
 180         .mdebug.abi32 : {
 181                 KEEP(*(.mdebug.abi32))
 182         }
 183         .mdebug.abi64 : {
 184                 KEEP(*(.mdebug.abi64))
 185         }
 186
 187         /* This is the MIPS specific mdebug section.  */
 188         .mdebug : {
 189                 *(.mdebug)
 190         }
 191
 192         STABS_DEBUG
 193         DWARF_DEBUG
 194
 195         /* These must appear regardless of  .  */
 196         .gptab.sdata : {
 197                 *(.gptab.data)
 198                 *(.gptab.sdata)
 199         }
 200         .gptab.sbss : {
 201                 *(.gptab.bss)
 202                 *(.gptab.sbss)
 203         }
 204
 205         /* Sections to be discarded */
 206         DISCARDS
 207         /DISCARD/ : {
 208                 /* ABI crap starts here */
 209                 *(.MIPS.options)
 210                 *(.options)
 211                 *(.pdr)
 212                 *(.reginfo)
 213         }
 214 }