arch/powerpc/kernel/vmlinux.lds.S

   1 #ifdef CONFIG_PPC64
   2 #include <asm/page.h>
   3 #define PROVIDE32(x)    PROVIDE(__unused__##x)
   4 #else
   5 #define PAGE_SIZE       4096
   6 #define KERNELBASE      CONFIG_KERNEL_START
   7 #define PROVIDE32(x)    PROVIDE(x)
   8 #endif
   9 #include <asm-generic/vmlinux.lds.h>
  10 #include <asm/cache.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                 ALIGN_FUNCTION();
  38                 *(.text.head)
  39                 _text = .;
  40                 *(.text .fixup .text.init.refok .exit.text.refok)
  41                 SCHED_TEXT
  42                 LOCK_TEXT
  43                 KPROBES_TEXT
  44
  45 #ifdef CONFIG_PPC32
  46                 *(.got1)
  47                 __got2_start = .;
  48                 *(.got2)
  49                 __got2_end = .;
  50 #endif /* CONFIG_PPC32 */
  51
  52                 . = ALIGN(PAGE_SIZE);
  53                 _etext = .;
  54                 PROVIDE32 (etext = .);
  55         }
  56
  57         /* Read-only data */
  58         RODATA
  59
  60         /* Exception & bug tables */
  61         __ex_table : {
  62                 __start___ex_table = .;
  63                 *(__ex_table)
  64                 __stop___ex_table = .;
  65         }
  66
  67         NOTES
  68
  69         BUG_TABLE
  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 : {
  87                 EXIT_TEXT
  88         }
  89
  90         .init.data : {
  91                 INIT_DATA
  92                 __vtop_table_begin = .;
  93                 *(.vtop_fixup);
  94                 __vtop_table_end = .;
  95                 __ptov_table_begin = .;
  96                 *(.ptov_fixup);
  97                 __ptov_table_end = .;
  98 #ifdef CONFIG_PPC_ISERIES
  99                 __dt_strings_start = .;
 100                 *(.dt_strings);
 101                 __dt_strings_end = .;
 102 #endif
 103         }
 104
 105         . = ALIGN(16);
 106         .init.setup : {
 107                 __setup_start = .;
 108                 *(.init.setup)
 109                 __setup_end = .;
 110         }
 111
 112         .initcall.init : {
 113                 __initcall_start = .;
 114                 INITCALLS
 115                 __initcall_end = .;
 116                 }
 117
 118         .con_initcall.init : {
 119                 __con_initcall_start = .;
 120                 *(.con_initcall.init)
 121                 __con_initcall_end = .;
 122         }
 123
 124         SECURITY_INIT
 125
 126         . = ALIGN(8);
 127         __ftr_fixup : {
 128                 __start___ftr_fixup = .;
 129                 *(__ftr_fixup)
 130                 __stop___ftr_fixup = .;
 131         }
 132 #ifdef CONFIG_PPC64
 133         . = ALIGN(8);
 134         __fw_ftr_fixup : {
 135                 __start___fw_ftr_fixup = .;
 136                 *(__fw_ftr_fixup)
 137                 __stop___fw_ftr_fixup = .;
 138         }
 139 #endif
 140 #ifdef CONFIG_BLK_DEV_INITRD
 141         . = ALIGN(PAGE_SIZE);
 142         .init.ramfs : {
 143                 __initramfs_start = .;
 144                 *(.init.ramfs)
 145                 __initramfs_end = .;
 146         }
 147 #endif
 148         . = ALIGN(PAGE_SIZE);
 149         .data.percpu : {
 150                 __per_cpu_start = .;
 151                 *(.data.percpu)
 152                 *(.data.percpu.shared_aligned)
 153                 __per_cpu_end = .;
 154         }
 155
 156         . = ALIGN(8);
 157         .machine.desc : {
 158                 __machine_desc_start = . ;
 159                 *(.machine.desc)
 160                 __machine_desc_end = . ;
 161         }
 162
 163         /* freed after init ends here */
 164         . = ALIGN(PAGE_SIZE);
 165         __init_end = .;
 166
 167 /*
 168  * And now the various read/write data
 169  */
 170
 171         . = ALIGN(PAGE_SIZE);
 172         _sdata = .;
 173
 174 #ifdef CONFIG_PPC32
 175         .data    :
 176         {
 177                 DATA_DATA
 178                 *(.sdata)
 179                 *(.got.plt) *(.got)
 180         }
 181 #else
 182         .data : {
 183                 DATA_DATA
 184                 *(.data.rel*)
 185                 *(.toc1)
 186                 *(.branch_lt)
 187         }
 188
 189         .opd : {
 190                 *(.opd)
 191         }
 192
 193         .got : {
 194                 __toc_start = .;
 195                 *(.got)
 196                 *(.toc)
 197         }
 198 #endif
 199
 200         . = ALIGN(PAGE_SIZE);
 201         _edata  =  .;
 202         PROVIDE32 (edata = .);
 203
 204         /* The initial task and kernel stack */
 205 #ifdef CONFIG_PPC32
 206         . = ALIGN(8192);
 207 #else
 208         . = ALIGN(16384);
 209 #endif
 210         .data.init_task : {
 211                 *(.data.init_task)
 212         }
 213
 214         . = ALIGN(PAGE_SIZE);
 215         .data.page_aligned : {
 216                 *(.data.page_aligned)
 217         }
 218
 219         .data.cacheline_aligned : {
 220                 *(.data.cacheline_aligned)
 221         }
 222
 223         . = ALIGN(L1_CACHE_BYTES);
 224         .data.read_mostly : {
 225                 *(.data.read_mostly)
 226         }
 227
 228         . = ALIGN(PAGE_SIZE);
 229         __data_nosave : {
 230                 __nosave_begin = .;
 231                 *(.data.nosave)
 232                 . = ALIGN(PAGE_SIZE);
 233                 __nosave_end = .;
 234         }
 235
 236 /*
 237  * And finally the bss
 238  */
 239
 240         .bss : {
 241                 __bss_start = .;
 242                 *(.sbss) *(.scommon)
 243                 *(.dynbss)
 244                 *(.bss)
 245                 *(COMMON)
 246                 __bss_stop = .;
 247         }
 248
 249         . = ALIGN(PAGE_SIZE);
 250         _end = . ;
 251         PROVIDE32 (end = .);
 252 }