arch/powerpc/kernel/vmlinux.lds.S

   1 #include <linux/config.h>
   2 #ifdef CONFIG_PPC64
   3 #include <asm/page.h>
   4 #define PROVIDE32(x)    PROVIDE(__unused__##x)
   5 #else
   6 #define PAGE_SIZE       4096
   7 #define KERNELBASE      CONFIG_KERNEL_START
   8 #define PROVIDE32(x)    PROVIDE(x)
   9 #endif
  10 #include <asm-generic/vmlinux.lds.h>
  11
  12 ENTRY(_stext)
  13
  14 #ifdef CONFIG_PPC64
  15 OUTPUT_ARCH(powerpc:common64)
  16 jiffies = jiffies_64;
  17 #else
  18 OUTPUT_ARCH(powerpc:common)
  19 jiffies = jiffies_64 + 4;
  20 #endif
  21 SECTIONS
  22 {
  23         /* Sections to be discarded. */
  24         /DISCARD/ : {
  25         *(.exitcall.exit)
  26         *(.exit.data)
  27         }
  28
  29         . = KERNELBASE;
  30
  31 /*
  32  * Text, read only data and other permanent read-only sections
  33  */
  34
  35         /* Text and gots */
  36         .text : {
  37                 *(.text .text.*)
  38                 SCHED_TEXT
  39                 LOCK_TEXT
  40                 KPROBES_TEXT
  41                 *(.fixup)
  42
  43 #ifdef CONFIG_PPC32
  44                 *(.got1)
  45                 __got2_start = .;
  46                 *(.got2)
  47                 __got2_end = .;
  48 #endif /* CONFIG_PPC32 */
  49
  50                 . = ALIGN(PAGE_SIZE);
  51                 _etext = .;
  52                 PROVIDE32 (etext = .);
  53         }
  54
  55         /* Read-only data */
  56         RODATA
  57
  58         /* Exception & bug tables */
  59         __ex_table : {
  60                 __start___ex_table = .;
  61                 *(__ex_table)
  62                 __stop___ex_table = .;
  63         }
  64
  65         __bug_table : {
  66                 __start___bug_table = .;
  67                 *(__bug_table)
  68                 __stop___bug_table = .;
  69         }
  70
  71 /*
  72  * Init sections discarded at runtime
  73  */
  74         . = ALIGN(PAGE_SIZE);
  75         __init_begin = .;
  76
  77         .init.text : {
  78                 _sinittext = .;
  79                 *(.init.text)
  80                 _einittext = .;
  81         }
  82
  83         /* .exit.text is discarded at runtime, not link time,
  84          * to deal with references from __bug_table
  85          */
  86         .exit.text : { *(.exit.text) }
  87
  88         .init.data : {
  89                 *(.init.data);
  90                 __vtop_table_begin = .;
  91                 *(.vtop_fixup);
  92                 __vtop_table_end = .;
  93                 __ptov_table_begin = .;
  94                 *(.ptov_fixup);
  95                 __ptov_table_end = .;
  96         }
  97
  98         . = ALIGN(16);
  99         .init.setup : {
 100                 __setup_start = .;
 101                 *(.init.setup)
 102                 __setup_end = .;
 103         }
 104
 105         .initcall.init : {
 106                 __initcall_start = .;
 107                 *(.initcall1.init)
 108                 *(.initcall2.init)
 109                 *(.initcall3.init)
 110                 *(.initcall4.init)
 111                 *(.initcall5.init)
 112                 *(.initcall6.init)
 113                 *(.initcall7.init)
 114                 __initcall_end = .;
 115                 }
 116
 117         .con_initcall.init : {
 118                 __con_initcall_start = .;
 119                 *(.con_initcall.init)
 120                 __con_initcall_end = .;
 121         }
 122
 123         SECURITY_INIT
 124
 125         . = ALIGN(8);
 126         __ftr_fixup : {
 127                 __start___ftr_fixup = .;
 128                 *(__ftr_fixup)
 129                 __stop___ftr_fixup = .;
 130         }
 131
 132         . = ALIGN(PAGE_SIZE);
 133         .init.ramfs : {
 134                 __initramfs_start = .;
 135                 *(.init.ramfs)
 136                 __initramfs_end = .;
 137         }
 138
 139 #ifdef CONFIG_PPC32
 140         . = ALIGN(32);
 141 #else
 142         . = ALIGN(128);
 143 #endif
 144         .data.percpu : {
 145                 __per_cpu_start = .;
 146                 *(.data.percpu)
 147                 __per_cpu_end = .;
 148         }
 149
 150         . = ALIGN(8);
 151         .machine.desc : {
 152                 __machine_desc_start = . ;
 153                 *(.machine.desc)
 154                 __machine_desc_end = . ;
 155         }
 156
 157         /* freed after init ends here */
 158         . = ALIGN(PAGE_SIZE);
 159         __init_end = .;
 160
 161 /*
 162  * And now the various read/write data
 163  */
 164
 165         . = ALIGN(PAGE_SIZE);
 166         _sdata = .;
 167
 168 #ifdef CONFIG_PPC32
 169         .data    :
 170         {
 171                 *(.data)
 172                 *(.sdata)
 173                 *(.got.plt) *(.got)
 174         }
 175 #else
 176         .data : {
 177                 *(.data .data.rel* .toc1)
 178                 *(.branch_lt)
 179         }
 180
 181         .opd : {
 182                 *(.opd)
 183         }
 184
 185         .got : {
 186                 __toc_start = .;
 187                 *(.got)
 188                 *(.toc)
 189         }
 190 #endif
 191
 192         . = ALIGN(PAGE_SIZE);
 193         _edata  =  .;
 194         PROVIDE32 (edata = .);
 195
 196         /* The initial task and kernel stack */
 197 #ifdef CONFIG_PPC32
 198         . = ALIGN(8192);
 199 #else
 200         . = ALIGN(16384);
 201 #endif
 202         .data.init_task : {
 203                 *(.data.init_task)
 204         }
 205
 206         . = ALIGN(PAGE_SIZE);
 207         .data.page_aligned : {
 208                 *(.data.page_aligned)
 209         }
 210
 211         .data.cacheline_aligned : {
 212                 *(.data.cacheline_aligned)
 213         }
 214
 215         . = ALIGN(PAGE_SIZE);
 216         __data_nosave : {
 217                 __nosave_begin = .;
 218                 *(.data.nosave)
 219                 . = ALIGN(PAGE_SIZE);
 220                 __nosave_end = .;
 221         }
 222
 223 /*
 224  * And finally the bss
 225  */
 226
 227         .bss : {
 228                 __bss_start = .;
 229                 *(.sbss) *(.scommon)
 230                 *(.dynbss)
 231                 *(.bss)
 232                 *(COMMON)
 233                 __bss_stop = .;
 234         }
 235
 236         . = ALIGN(PAGE_SIZE);
 237         _end = . ;
 238         PROVIDE32 (end = .);
 239 }