1#include <asm/asm-offsets.h> 2#include <asm/thread_info.h> 3 4#define PAGE_SIZE _PAGE_SIZE 5 6/* 7 * Put .bss..swapper_pg_dir as the first thing in .bss. This will 8 * ensure that it has .bss alignment (64K). 9 */ 10#define BSS_FIRST_SECTIONS *(.bss..swapper_pg_dir) 11 12#include <asm-generic/vmlinux.lds.h> 13 14#undef mips 15#define mips mips 16OUTPUT_ARCH(mips) 17ENTRY(kernel_entry) 18PHDRS { 19 text PT_LOAD FLAGS(7); /* RWX */ 20#ifndef CONFIG_CAVIUM_OCTEON_SOC 21 note PT_NOTE FLAGS(4); /* R__ */ 22#endif /* CAVIUM_OCTEON_SOC */ 23} 24 25#ifdef CONFIG_32BIT 26 #ifdef CONFIG_CPU_LITTLE_ENDIAN 27 jiffies = jiffies_64; 28 #else 29 jiffies = jiffies_64 + 4; 30 #endif 31#else 32 jiffies = jiffies_64; 33#endif 34 35SECTIONS 36{ 37#ifdef CONFIG_BOOT_ELF64 38 /* Read-only sections, merged into text segment: */ 39 /* . = 0xc000000000000000; */ 40 41 /* This is the value for an Origin kernel, taken from an IRIX kernel. */ 42 /* . = 0xc00000000001c000; */ 43 44 /* Set the vaddr for the text segment to a value 45 * >= 0xa800 0000 0001 9000 if no symmon is going to configured 46 * >= 0xa800 0000 0030 0000 otherwise 47 */ 48 49 /* . = 0xa800000000300000; */ 50 . = 0xffffffff80300000; 51#endif 52 . = VMLINUX_LOAD_ADDRESS; 53 /* read-only */ 54 _text = .; /* Text and read-only data */ 55 .text : { 56 TEXT_TEXT 57 SCHED_TEXT 58 LOCK_TEXT 59 KPROBES_TEXT 60 IRQENTRY_TEXT 61 SOFTIRQENTRY_TEXT 62 *(.text.*) 63 *(.fixup) 64 *(.gnu.warning) 65 } :text = 0 66 _etext = .; /* End of text section */ 67 68 EXCEPTION_TABLE(16) 69 70 /* Exception table for data bus errors */ 71 __dbe_table : { 72 __start___dbe_table = .; 73 *(__dbe_table) 74 __stop___dbe_table = .; 75 } 76 77#ifdef CONFIG_CAVIUM_OCTEON_SOC 78#define NOTES_HEADER 79#else /* CONFIG_CAVIUM_OCTEON_SOC */ 80#define NOTES_HEADER :note 81#endif /* CONFIG_CAVIUM_OCTEON_SOC */ 82 NOTES :text NOTES_HEADER 83 .dummy : { *(.dummy) } :text 84 85 _sdata = .; /* Start of data section */ 86 RODATA 87 88 /* writeable */ 89 .data : { /* Data */ 90 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */ 91 92 INIT_TASK_DATA(THREAD_SIZE) 93 NOSAVE_DATA 94 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 95 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 96 DATA_DATA 97 CONSTRUCTORS 98 } 99 _gp = . + 0x8000; 100 .lit8 : { 101 *(.lit8) 102 } 103 .lit4 : { 104 *(.lit4) 105 } 106 /* We want the small data sections together, so single-instruction offsets 107 can access them all, and initialized data all before uninitialized, so 108 we can shorten the on-disk segment size. */ 109 .sdata : { 110 *(.sdata) 111 } 112 _edata = .; /* End of data section */ 113 114 /* will be freed after init */ 115 . = ALIGN(PAGE_SIZE); /* Init code and data */ 116 __init_begin = .; 117 INIT_TEXT_SECTION(PAGE_SIZE) 118 INIT_DATA_SECTION(16) 119 120 . = ALIGN(4); 121 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) { 122 __mips_machines_start = .; 123 *(.mips.machines.init) 124 __mips_machines_end = .; 125 } 126 127 /* .exit.text is discarded at runtime, not link time, to deal with 128 * references from .rodata 129 */ 130 .exit.text : { 131 EXIT_TEXT 132 } 133 .exit.data : { 134 EXIT_DATA 135 } 136#ifdef CONFIG_SMP 137 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 138#endif 139 140#ifdef CONFIG_RELOCATABLE 141 . = ALIGN(4); 142 143 .data.reloc : { 144 _relocation_start = .; 145 /* 146 * Space for relocation table 147 * This needs to be filled so that the 148 * relocs tool can overwrite the content. 149 * An invalid value is left at the start of the 150 * section to abort relocation if the table 151 * has not been filled in. 152 */ 153 LONG(0xFFFFFFFF); 154 FILL(0); 155 . += CONFIG_RELOCATION_TABLE_SIZE - 4; 156 _relocation_end = .; 157 } 158#endif 159 160#ifdef CONFIG_MIPS_RAW_APPENDED_DTB 161 __appended_dtb = .; 162 /* leave space for appended DTB */ 163 . += 0x100000; 164#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB) 165 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) { 166 *(.appended_dtb) 167 KEEP(*(.appended_dtb)) 168 } 169#endif 170 /* 171 * Align to 64K in attempt to eliminate holes before the 172 * .bss..swapper_pg_dir section at the start of .bss. This 173 * also satisfies PAGE_SIZE alignment as the largest page size 174 * allowed is 64K. 175 */ 176 . = ALIGN(0x10000); 177 __init_end = .; 178 /* freed after init ends here */ 179 180 /* 181 * Force .bss to 64K alignment so that .bss..swapper_pg_dir 182 * gets that alignment. .sbss should be empty, so there will be 183 * no holes after __init_end. */ 184 BSS_SECTION(0, 0x10000, 0) 185 186 _end = . ; 187 188 /* These mark the ABI of the kernel for debuggers. */ 189 .mdebug.abi32 : { 190 KEEP(*(.mdebug.abi32)) 191 } 192 .mdebug.abi64 : { 193 KEEP(*(.mdebug.abi64)) 194 } 195 196 /* This is the MIPS specific mdebug section. */ 197 .mdebug : { 198 *(.mdebug) 199 } 200 201 STABS_DEBUG 202 DWARF_DEBUG 203 204 /* These must appear regardless of . */ 205 .gptab.sdata : { 206 *(.gptab.data) 207 *(.gptab.sdata) 208 } 209 .gptab.sbss : { 210 *(.gptab.bss) 211 *(.gptab.sbss) 212 } 213 214 /* Sections to be discarded */ 215 DISCARDS 216 /DISCARD/ : { 217 /* ABI crap starts here */ 218 *(.MIPS.abiflags) 219 *(.MIPS.options) 220 *(.options) 221 *(.pdr) 222 *(.reginfo) 223 *(.eh_frame) 224 } 225} 226