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 PAGE_ALIGNED_DATA(PAGE_SIZE) 95 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 96 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 97 DATA_DATA 98 CONSTRUCTORS 99 } 100 _gp = . + 0x8000; 101 .lit8 : { 102 *(.lit8) 103 } 104 .lit4 : { 105 *(.lit4) 106 } 107 /* We want the small data sections together, so single-instruction offsets 108 can access them all, and initialized data all before uninitialized, so 109 we can shorten the on-disk segment size. */ 110 .sdata : { 111 *(.sdata) 112 } 113 _edata = .; /* End of data section */ 114 115 /* will be freed after init */ 116 . = ALIGN(PAGE_SIZE); /* Init code and data */ 117 __init_begin = .; 118 INIT_TEXT_SECTION(PAGE_SIZE) 119 INIT_DATA_SECTION(16) 120 121 . = ALIGN(4); 122 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) { 123 __mips_machines_start = .; 124 *(.mips.machines.init) 125 __mips_machines_end = .; 126 } 127 128 /* .exit.text is discarded at runtime, not link time, to deal with 129 * references from .rodata 130 */ 131 .exit.text : { 132 EXIT_TEXT 133 } 134 .exit.data : { 135 EXIT_DATA 136 } 137#ifdef CONFIG_SMP 138 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 139#endif 140#ifdef CONFIG_MIPS_RAW_APPENDED_DTB 141 __appended_dtb = .; 142 /* leave space for appended DTB */ 143 . += 0x100000; 144#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB) 145 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) { 146 *(.appended_dtb) 147 KEEP(*(.appended_dtb)) 148 } 149#endif 150 /* 151 * Align to 64K in attempt to eliminate holes before the 152 * .bss..swapper_pg_dir section at the start of .bss. This 153 * also satisfies PAGE_SIZE alignment as the largest page size 154 * allowed is 64K. 155 */ 156 . = ALIGN(0x10000); 157 __init_end = .; 158 /* freed after init ends here */ 159 160 /* 161 * Force .bss to 64K alignment so that .bss..swapper_pg_dir 162 * gets that alignment. .sbss should be empty, so there will be 163 * no holes after __init_end. */ 164 BSS_SECTION(0, 0x10000, 8) 165 166 _end = . ; 167 168 /* These mark the ABI of the kernel for debuggers. */ 169 .mdebug.abi32 : { 170 KEEP(*(.mdebug.abi32)) 171 } 172 .mdebug.abi64 : { 173 KEEP(*(.mdebug.abi64)) 174 } 175 176 /* This is the MIPS specific mdebug section. */ 177 .mdebug : { 178 *(.mdebug) 179 } 180 181 STABS_DEBUG 182 DWARF_DEBUG 183 184 /* These must appear regardless of . */ 185 .gptab.sdata : { 186 *(.gptab.data) 187 *(.gptab.sdata) 188 } 189 .gptab.sbss : { 190 *(.gptab.bss) 191 *(.gptab.sbss) 192 } 193 194 /* Sections to be discarded */ 195 DISCARDS 196 /DISCARD/ : { 197 /* ABI crap starts here */ 198 *(.MIPS.abiflags) 199 *(.MIPS.options) 200 *(.options) 201 *(.pdr) 202 *(.reginfo) 203 *(.eh_frame) 204 } 205} 206