arch/v850/kernel/vmlinux.lds.S

   1 /*
   2  * arch/v850/vmlinux.lds.S -- kernel linker script for v850 platforms
   3  *
   4  *  Copyright (C) 2002,03,04  NEC Electronics Corporation
   5  *  Copyright (C) 2002,03,04  Miles Bader <miles@gnu.org>
   6  *
   7  * This file is subject to the terms and conditions of the GNU General
   8  * Public License.  See the file COPYING in the main directory of this
   9  * archive for more details.
  10  *
  11  * Written by Miles Bader <miles@gnu.org>
  12  */
  13
  14 #include <linux/config.h>
  15 #define VMLINUX_SYMBOL(_sym_) _##_sym_
  16 #include <asm-generic/vmlinux.lds.h>
  17
  18 /* For most platforms, this will define useful things like RAM addr/size.  */
  19 #include <asm/machdep.h>
  20
  21
  22 /* The following macros contain the usual definitions for various data areas.
  23    The prefix `RAMK_' is used to indicate macros suitable for kernels loaded
  24    into RAM, and similarly `ROMK_' for ROM-resident kernels.  Note that all
  25    symbols are prefixed with an extra `_' for compatibility with the v850
  26    toolchain.  */
  27
  28
  29 /* Interrupt vectors.  */
  30 #define INTV_CONTENTS                                                         \
  31                 . = ALIGN (0x10) ;                                            \
  32                 __intv_start = . ;                                            \
  33                         *(.intv.reset)  /* Reset vector */                    \
  34                 . = __intv_start + 0x10 ;                                     \
  35                         *(.intv.common) /* Vectors common to all v850e proc */\
  36                 . = __intv_start + 0x80 ;                                     \
  37                         *(.intv.mach)   /* Machine-specific int. vectors.  */ \
  38                 __intv_end = . ;
  39
  40 #define RODATA_CONTENTS                                                       \
  41                 . = ALIGN (16) ;                                              \
  42                         *(.rodata) *(.rodata.*)                               \
  43                         *(__vermagic)           /* Kernel version magic */    \
  44                         *(.rodata1)                                           \
  45                 /* Kernel symbol table: Normal symbols */                     \
  46                 ___start___ksymtab = .;                                       \
  47                         *(__ksymtab)                                          \
  48                 ___stop___ksymtab = .;                                        \
  49                 /* Kernel symbol table: GPL-only symbols */                   \
  50                 ___start___ksymtab_gpl = .;                                   \
  51                         *(__ksymtab_gpl)                                      \
  52                 ___stop___ksymtab_gpl = .;                                    \
  53                 /* Kernel symbol table: strings */                            \
  54                         *(__ksymtab_strings)                                  \
  55                 /* Kernel symbol table: Normal symbols */                     \
  56                 ___start___kcrctab = .;                                       \
  57                         *(__kcrctab)                                          \
  58                 ___stop___kcrctab = .;                                        \
  59                 /* Kernel symbol table: GPL-only symbols */                   \
  60                 ___start___kcrctab_gpl = .;                                   \
  61                         *(__kcrctab_gpl)                                      \
  62                 ___stop___kcrctab_gpl = .;                                    \
  63                 /* Built-in module parameters */                              \
  64                 ___start___param = .;                                         \
  65                 *(__param)                                                    \
  66                 ___stop___param = .;
  67
  68
  69 /* Kernel text segment, and some constant data areas.  */
  70 #define TEXT_CONTENTS                                                         \
  71                 __stext = . ;                                                 \
  72                 *(.text)                                                      \
  73                 SCHED_TEXT                                                    \
  74                         *(.exit.text)   /* 2.5 convention */                  \
  75                         *(.text.exit)   /* 2.4 convention */                  \
  76                         *(.text.lock)                                         \
  77                         *(.exitcall.exit)                                     \
  78                 __real_etext = . ;      /* There may be data after here.  */  \
  79                 RODATA_CONTENTS                                               \
  80                 . = ALIGN (4) ;                                               \
  81                         *(.call_table_data)                                   \
  82                         *(.call_table_text)                                   \
  83                 . = ALIGN (16) ;        /* Exception table.  */               \
  84                 ___start___ex_table = . ;                                     \
  85                         *(__ex_table)                                         \
  86                 ___stop___ex_table = . ;                                      \
  87                 . = ALIGN (4) ;                                               \
  88                 __etext = . ;
  89
  90 /* Kernel data segment.  */
  91 #define DATA_CONTENTS                                                         \
  92                 __sdata = . ;                                                 \
  93                 *(.data)                                                      \
  94                         *(.exit.data)   /* 2.5 convention */                  \
  95                         *(.data.exit)   /* 2.4 convention */                  \
  96                 . = ALIGN (16) ;                                              \
  97                 *(.data.cacheline_aligned)                                    \
  98                 . = ALIGN (0x2000) ;                                          \
  99                 *(.data.init_task)                                            \
 100                 . = ALIGN (0x2000) ;                                          \
 101                 __edata = . ;
 102
 103 /* Kernel BSS segment.  */
 104 #define BSS_CONTENTS                                                          \
 105                 __sbss = . ;                                                  \
 106                         *(.bss)                                               \
 107                         *(COMMON)                                             \
 108                 . = ALIGN (4) ;                                               \
 109                 __init_stack_end = . ;                                        \
 110                 __ebss = . ;
 111
 112 /* `initcall' tables.  */
 113 #define INITCALL_CONTENTS                                                     \
 114                 . = ALIGN (16) ;                                              \
 115                 ___setup_start = . ;                                          \
 116                         *(.init.setup)  /* 2.5 convention */                  \
 117                         *(.setup.init)  /* 2.4 convention */                  \
 118                 ___setup_end = . ;                                            \
 119                 ___initcall_start = . ;                                       \
 120                         *(.initcall.init)                                     \
 121                         *(.initcall1.init)                                    \
 122                         *(.initcall2.init)                                    \
 123                         *(.initcall3.init)                                    \
 124                         *(.initcall4.init)                                    \
 125                         *(.initcall5.init)                                    \
 126                         *(.initcall6.init)                                    \
 127                         *(.initcall7.init)                                    \
 128                 . = ALIGN (4) ;                                               \
 129                 ___initcall_end = . ;                                         \
 130                 ___con_initcall_start = .;                                    \
 131                         *(.con_initcall.init)                                 \
 132                 ___con_initcall_end = .;
 133
 134 /* Contents of `init' section for a kernel that's loaded into RAM.  */
 135 #define RAMK_INIT_CONTENTS                                                    \
 136                 RAMK_INIT_CONTENTS_NO_END                                     \
 137                 __init_end = . ;
 138 /* Same as RAMK_INIT_CONTENTS, but doesn't define the `__init_end' symbol.  */
 139 #define RAMK_INIT_CONTENTS_NO_END                                             \
 140                 . = ALIGN (4096) ;                                            \
 141                 __init_start = . ;                                            \
 142                         __sinittext = .;                                      \
 143                         *(.init.text)   /* 2.5 convention */                  \
 144                         __einittext = .;                                      \
 145                         *(.init.data)                                         \
 146                         *(.text.init)   /* 2.4 convention */                  \
 147                         *(.data.init)                                         \
 148                 INITCALL_CONTENTS                                             \
 149                 INITRAMFS_CONTENTS
 150
 151 /* The contents of `init' section for a ROM-resident kernel which
 152    should go into RAM.  */
 153 #define ROMK_INIT_RAM_CONTENTS                                                \
 154                 . = ALIGN (4096) ;                                            \
 155                 __init_start = . ;                                            \
 156                         *(.init.data)   /* 2.5 convention */                  \
 157                         *(.data.init)   /* 2.4 convention */                  \
 158                 __init_end = . ;                                              \
 159                 . = ALIGN (4096) ;
 160
 161 /* The contents of `init' section for a ROM-resident kernel which
 162    should go into ROM.  */
 163 #define ROMK_INIT_ROM_CONTENTS                                                \
 164                         _sinittext = .;                                       \
 165                         *(.init.text)   /* 2.5 convention */                  \
 166                         _einittext = .;                                       \
 167                         *(.text.init)   /* 2.4 convention */                  \
 168                 INITCALL_CONTENTS                                             \
 169                 INITRAMFS_CONTENTS
 170
 171 /* A root filesystem image, for kernels with an embedded root filesystem.  */
 172 #define ROOT_FS_CONTENTS                                                      \
 173                 __root_fs_image_start = . ;                                   \
 174                 *(.root)                                                      \
 175                 __root_fs_image_end = . ;
 176 /* The initramfs archive.  */
 177 #define INITRAMFS_CONTENTS                                                    \
 178                 . = ALIGN (4) ;                                               \
 179                 ___initramfs_start = . ;                                      \
 180                         *(.init.ramfs)                                        \
 181                 ___initramfs_end = . ;
 182 /* Where the initial bootmap (bitmap for the boot-time memory allocator)
 183    should be place.  */
 184 #define BOOTMAP_CONTENTS                                                      \
 185                 . = ALIGN (4096) ;                                            \
 186                 __bootmap = . ;                                               \
 187                 . = . + 4096 ;          /* enough for 128MB.   */
 188
 189 /* The contents of a `typical' kram area for a kernel in RAM.  */
 190 #define RAMK_KRAM_CONTENTS                                                    \
 191                 __kram_start = . ;                                            \
 192                 TEXT_CONTENTS                                                 \
 193                 DATA_CONTENTS                                                 \
 194                 BSS_CONTENTS                                                  \
 195                 RAMK_INIT_CONTENTS                                            \
 196                 __kram_end = . ;                                              \
 197                 BOOTMAP_CONTENTS
 198
 199
 200 /* Define output sections normally used for a ROM-resident kernel.
 201    ROM and RAM should be appropriate memory areas to use for kernel
 202    ROM and RAM data.  This assumes that ROM starts at 0 (and thus can
 203    hold the interrupt vectors).  */
 204 #define ROMK_SECTIONS(ROM, RAM)                                               \
 205         .rom : {                                                              \
 206                 INTV_CONTENTS                                                 \
 207                 TEXT_CONTENTS                                                 \
 208                 ROMK_INIT_ROM_CONTENTS                                        \
 209                 ROOT_FS_CONTENTS                                              \
 210         } > ROM                                                               \
 211                                                                               \
 212         __rom_copy_src_start = . ;                                            \
 213                                                                               \
 214         .data : {                                                             \
 215                 __kram_start = . ;                                            \
 216                 __rom_copy_dst_start = . ;                                    \
 217                 DATA_CONTENTS                                                 \
 218                 ROMK_INIT_RAM_CONTENTS                                        \
 219                 __rom_copy_dst_end = . ;                                      \
 220         } > RAM  AT> ROM                                                      \
 221                                                                               \
 222         .bss ALIGN (4) : {                                                    \
 223                 BSS_CONTENTS                                                  \
 224                 __kram_end = . ;                                              \
 225                 BOOTMAP_CONTENTS                                              \
 226         } > RAM
 227
 228
 229 /* The 32-bit variable `jiffies' is just the lower 32-bits of `jiffies_64'.  */
 230 _jiffies = _jiffies_64 ;
 231
 232
 233 /* Include an appropriate platform-dependent linker-script (which
 234    usually should use the above macros to do most of the work).  */
 235
 236 #ifdef CONFIG_V850E_SIM
 237 # include "sim.ld"
 238 #endif
 239
 240 #ifdef CONFIG_V850E2_SIM85E2
 241 # include "sim85e2.ld"
 242 #endif
 243
 244 #ifdef CONFIG_V850E2_FPGA85E2C
 245 # include "fpga85e2c.ld"
 246 #endif
 247
 248 #ifdef CONFIG_V850E2_ANNA
 249 # ifdef CONFIG_ROM_KERNEL
 250 #  include "anna-rom.ld"
 251 # else
 252 #  include "anna.ld"
 253 # endif
 254 #endif
 255
 256 #ifdef CONFIG_V850E_AS85EP1
 257 # ifdef CONFIG_ROM_KERNEL
 258 #  include "as85ep1-rom.ld"
 259 # else
 260 #  include "as85ep1.ld"
 261 # endif
 262 #endif
 263
 264 #ifdef CONFIG_RTE_CB_MA1
 265 # ifdef CONFIG_ROM_KERNEL
 266 #  include "rte_ma1_cb-rom.ld"
 267 # else
 268 #  include "rte_ma1_cb.ld"
 269 # endif
 270 #endif
 271
 272 #ifdef CONFIG_RTE_CB_NB85E
 273 # ifdef CONFIG_ROM_KERNEL
 274 #  include "rte_nb85e_cb-rom.ld"
 275 # elif defined(CONFIG_RTE_CB_MULTI)
 276 #  include "rte_nb85e_cb-multi.ld"
 277 # else
 278 #  include "rte_nb85e_cb.ld"
 279 # endif
 280 #endif
 281
 282 #ifdef CONFIG_RTE_CB_ME2
 283 #  include "rte_me2_cb.ld"
 284 #endif
 285