arch/mips/kernel/vmlinux.lds.S

   1 #include <asm/asm-offsets.h>
   2 #include <asm/page.h>
   3 #include <asm-generic/vmlinux.lds.h>
   4
   5 #undef mips
   6 #define mips mips
   7 OUTPUT_ARCH(mips)
   8 ENTRY(kernel_entry)
   9 PHDRS {
  10         text PT_LOAD FLAGS(7);  /* RWX */
  11         note PT_NOTE FLAGS(4);  /* R__ */
  12 }
  13
  14 #ifdef CONFIG_32BIT
  15         #ifdef CONFIG_CPU_LITTLE_ENDIAN
  16                 jiffies  = jiffies_64;
  17         #else
  18                 jiffies  = jiffies_64 + 4;
  19         #endif
  20 #else
  21         jiffies  = jiffies_64;
  22 #endif
  23
  24 SECTIONS
  25 {
  26 #ifdef CONFIG_BOOT_ELF64
  27         /* Read-only sections, merged into text segment: */
  28         /* . = 0xc000000000000000; */
  29
  30         /* This is the value for an Origin kernel, taken from an IRIX kernel.  */
  31         /* . = 0xc00000000001c000; */
  32
  33         /* Set the vaddr for the text segment to a value
  34          *   >= 0xa800 0000 0001 9000 if no symmon is going to configured
  35          *   >= 0xa800 0000 0030 0000 otherwise
  36          */
  37
  38         /* . = 0xa800000000300000; */
  39         . = 0xffffffff80300000;
  40 #endif
  41         . = VMLINUX_LOAD_ADDRESS;
  42         /* read-only */
  43         _text = .;      /* Text and read-only data */
  44         .text : {
  45                 TEXT_TEXT
  46                 SCHED_TEXT
  47                 LOCK_TEXT
  48                 KPROBES_TEXT
  49                 IRQENTRY_TEXT
  50                 *(.text.*)
  51                 *(.fixup)
  52                 *(.gnu.warning)
  53         } :text = 0
  54         _etext = .;     /* End of text section */
  55
  56         EXCEPTION_TABLE(16)
  57
  58         /* Exception table for data bus errors */
  59         __dbe_table : {
  60                 __start___dbe_table = .;
  61                 *(__dbe_table)
  62                 __stop___dbe_table = .;
  63         }
  64
  65         NOTES :text :note
  66         .dummy : { *(.dummy) } :text
  67
  68         _sdata = .;                     /* Start of data section */
  69         RODATA
  70
  71         /* writeable */
  72         .data : {       /* Data */
  73                 . = . + DATAOFFSET;             /* for CONFIG_MAPPED_KERNEL */
  74
  75                 INIT_TASK_DATA(PAGE_SIZE)
  76                 NOSAVE_DATA
  77                 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
  78                 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
  79                 DATA_DATA
  80                 CONSTRUCTORS
  81         }
  82         _gp = . + 0x8000;
  83         .lit8 : {
  84                 *(.lit8)
  85         }
  86         .lit4 : {
  87                 *(.lit4)
  88         }
  89         /* We want the small data sections together, so single-instruction offsets
  90            can access them all, and initialized data all before uninitialized, so
  91            we can shorten the on-disk segment size.  */
  92         .sdata : {
  93                 *(.sdata)
  94         }
  95         _edata =  .;                    /* End of data section */
  96
  97         /* will be freed after init */
  98         . = ALIGN(PAGE_SIZE);           /* Init code and data */
  99         __init_begin = .;
 100         INIT_TEXT_SECTION(PAGE_SIZE)
 101         INIT_DATA_SECTION(16)
 102
 103         . = ALIGN(4);
 104         .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) {
 105                 __mips_machines_start = .;
 106                 *(.mips.machines.init)
 107                 __mips_machines_end = .;
 108         }
 109
 110         /* .exit.text is discarded at runtime, not link time, to deal with
 111          * references from .rodata
 112          */
 113         .exit.text : {
 114                 EXIT_TEXT
 115         }
 116         .exit.data : {
 117                 EXIT_DATA
 118         }
 119
 120         PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT)
 121         . = ALIGN(PAGE_SIZE);
 122         __init_end = .;
 123         /* freed after init ends here */
 124
 125         BSS_SECTION(0, 0, 0)
 126
 127         _end = . ;
 128
 129         /* These mark the ABI of the kernel for debuggers.  */
 130         .mdebug.abi32 : {
 131                 KEEP(*(.mdebug.abi32))
 132         }
 133         .mdebug.abi64 : {
 134                 KEEP(*(.mdebug.abi64))
 135         }
 136
 137         /* This is the MIPS specific mdebug section.  */
 138         .mdebug : {
 139                 *(.mdebug)
 140         }
 141
 142         STABS_DEBUG
 143         DWARF_DEBUG
 144
 145         /* These must appear regardless of  .  */
 146         .gptab.sdata : {
 147                 *(.gptab.data)
 148                 *(.gptab.sdata)
 149         }
 150         .gptab.sbss : {
 151                 *(.gptab.bss)
 152                 *(.gptab.sbss)
 153         }
 154
 155         /* Sections to be discarded */
 156         DISCARDS
 157         /DISCARD/ : {
 158                 /* ABI crap starts here */
 159                 *(.MIPS.options)
 160                 *(.options)
 161                 *(.pdr)
 162                 *(.reginfo)
 163         }
 164 }