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 *(.text.*) 62 *(.fixup) 63 *(.gnu.warning) 64 } :text = 0 65 _etext = .; /* End of text section */ 66 67 EXCEPTION_TABLE(16) 68 69 /* Exception table for data bus errors */ 70 __dbe_table : { 71 __start___dbe_table = .; 72 *(__dbe_table) 73 __stop___dbe_table = .; 74 } 75 76#ifdef CONFIG_CAVIUM_OCTEON_SOC 77#define NOTES_HEADER 78#else /* CONFIG_CAVIUM_OCTEON_SOC */ 79#define NOTES_HEADER :note 80#endif /* CONFIG_CAVIUM_OCTEON_SOC */ 81 NOTES :text NOTES_HEADER 82 .dummy : { *(.dummy) } :text 83 84 _sdata = .; /* Start of data section */ 85 RODATA 86 87 /* writeable */ 88 .data : { /* Data */ 89 . = . + DATAOFFSET; /* for CONFIG_MAPPED_KERNEL */ 90 91 INIT_TASK_DATA(THREAD_SIZE) 92 NOSAVE_DATA 93 CACHELINE_ALIGNED_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 94 READ_MOSTLY_DATA(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 95 DATA_DATA 96 CONSTRUCTORS 97 } 98 _gp = . + 0x8000; 99 .lit8 : { 100 *(.lit8) 101 } 102 .lit4 : { 103 *(.lit4) 104 } 105 /* We want the small data sections together, so single-instruction offsets 106 can access them all, and initialized data all before uninitialized, so 107 we can shorten the on-disk segment size. */ 108 .sdata : { 109 *(.sdata) 110 } 111 _edata = .; /* End of data section */ 112 113 /* will be freed after init */ 114 . = ALIGN(PAGE_SIZE); /* Init code and data */ 115 __init_begin = .; 116 INIT_TEXT_SECTION(PAGE_SIZE) 117 INIT_DATA_SECTION(16) 118 119 . = ALIGN(4); 120 .mips.machines.init : AT(ADDR(.mips.machines.init) - LOAD_OFFSET) { 121 __mips_machines_start = .; 122 *(.mips.machines.init) 123 __mips_machines_end = .; 124 } 125 126 /* .exit.text is discarded at runtime, not link time, to deal with 127 * references from .rodata 128 */ 129 .exit.text : { 130 EXIT_TEXT 131 } 132 .exit.data : { 133 EXIT_DATA 134 } 135#ifdef CONFIG_SMP 136 PERCPU_SECTION(1 << CONFIG_MIPS_L1_CACHE_SHIFT) 137#endif 138#ifdef CONFIG_MIPS_RAW_APPENDED_DTB 139 __appended_dtb = .; 140 /* leave space for appended DTB */ 141 . += 0x100000; 142#elif defined(CONFIG_MIPS_ELF_APPENDED_DTB) 143 .appended_dtb : AT(ADDR(.appended_dtb) - LOAD_OFFSET) { 144 *(.appended_dtb) 145 KEEP(*(.appended_dtb)) 146 } 147#endif 148 /* 149 * Align to 64K in attempt to eliminate holes before the 150 * .bss..swapper_pg_dir section at the start of .bss. This 151 * also satisfies PAGE_SIZE alignment as the largest page size 152 * allowed is 64K. 153 */ 154 . = ALIGN(0x10000); 155 __init_end = .; 156 /* freed after init ends here */ 157 158 /* 159 * Force .bss to 64K alignment so that .bss..swapper_pg_dir 160 * gets that alignment. .sbss should be empty, so there will be 161 * no holes after __init_end. */ 162 BSS_SECTION(0, 0x10000, 0) 163 164 _end = . ; 165 166 /* These mark the ABI of the kernel for debuggers. */ 167 .mdebug.abi32 : { 168 KEEP(*(.mdebug.abi32)) 169 } 170 .mdebug.abi64 : { 171 KEEP(*(.mdebug.abi64)) 172 } 173 174 /* This is the MIPS specific mdebug section. */ 175 .mdebug : { 176 *(.mdebug) 177 } 178 179 STABS_DEBUG 180 DWARF_DEBUG 181 182 /* These must appear regardless of . */ 183 .gptab.sdata : { 184 *(.gptab.data) 185 *(.gptab.sdata) 186 } 187 .gptab.sbss : { 188 *(.gptab.bss) 189 *(.gptab.sbss) 190 } 191 192 /* Sections to be discarded */ 193 DISCARDS 194 /DISCARD/ : { 195 /* ABI crap starts here */ 196 *(.MIPS.abiflags) 197 *(.MIPS.options) 198 *(.options) 199 *(.pdr) 200 *(.reginfo) 201 *(.eh_frame) 202 } 203} 204