kern.ldscript revision 1.14
1/* $NetBSD: kern.ldscript,v 1.14 2015/08/22 23:47:34 uebayasi Exp $ */ 2 3/* 4 * Kernel linker script for NetBSD/sparc64. This script is based on 5 * elf64_sparc.xn, but puts _etext after all of the read-only sections. 6 */ 7OUTPUT_FORMAT("elf64-sparc", "elf64-sparc", 8 "elf64-sparc") 9OUTPUT_ARCH(sparc:v9) 10ENTRY(_start) 11/* Do we need any of these for elf? 12 __DYNAMIC = 0; */ 13SECTIONS 14{ 15 /* Read-only sections, merged into text segment: */ 16 . = 0x100000 + SIZEOF_HEADERS; 17 .interp : { *(.interp) } 18 .hash : { *(.hash) } 19 .dynsym : { *(.dynsym) } 20 .dynstr : { *(.dynstr) } 21 .gnu.version : { *(.gnu.version) } 22 .gnu.version_d : { *(.gnu.version_d) } 23 .gnu.version_r : { *(.gnu.version_r) } 24 .rel.text : 25 { *(.rel.text) *(.rel.gnu.linkonce.t*) } 26 .rela.text : 27 { *(.rela.text) *(.rela.gnu.linkonce.t*) } 28 .rel.data : 29 { *(.rel.data) *(.rel.gnu.linkonce.d*) } 30 .rela.data : 31 { *(.rela.data) *(.rela.gnu.linkonce.d*) } 32 .rel.rodata : 33 { *(.rel.rodata) *(.rel.gnu.linkonce.r*) } 34 .rela.rodata : 35 { *(.rela.rodata) *(.rela.gnu.linkonce.r*) } 36 .rel.got : { *(.rel.got) } 37 .rela.got : { *(.rela.got) } 38 .rel.bss : { *(.rel.bss) } 39 .rela.bss : { *(.rela.bss) } 40 .rel.plt : { *(.rel.plt) } 41 .rela.plt : { *(.rela.plt) } 42 .text : 43 { 44 *(.text) 45 *(.stub) 46 /* .gnu.warning sections are handled specially by elf32.em. */ 47 *(.gnu.warning) 48 *(.gnu.linkonce.t*) 49 } =0x01000000 50 .rodata : { *(.rodata) *(.gnu.linkonce.r*) } 51 .rodata1 : { *(.rodata1) } 52 _etext = .; 53 PROVIDE (etext = .); 54 /* Adjust the address for the data segment. We push the data segment 55 up to the next 4MB boundary so that we can map the text with large 56 pages. */ 57 . = ALIGN(0x400000); 58 kernel_data_start = .; 59 .data : 60 { 61 *(.data) 62 *(.gnu.linkonce.d*) 63 CONSTRUCTORS 64 } 65 .data1 : { *(.data1) } 66 . = ALIGN(64); /* COHERENCY_UNIT */ 67 .data.cacheline_aligned : { *(.data.cacheline_aligned) } 68 . = ALIGN(64); /* COHERENCY_UNIT */ 69 .data.read_mostly : { *(.data.read_mostly) } 70 . = ALIGN(64); /* COHERENCY_UNIT */ 71 .plt : { *(.plt) } 72 .got : { *(.got.plt) *(.got) } 73 .dynamic : { *(.dynamic) } 74 /* We want the small data sections together, so single-instruction offsets 75 can access them all, and initialized data all before uninitialized, so 76 we can shorten the on-disk segment size. */ 77 .sdata : { *(.sdata) } 78 _edata = .; 79 PROVIDE (edata = .); 80 __bss_start = .; 81 .sbss : { *(.sbss) *(.scommon) } 82 .bss : 83 { 84 *(.dynbss) 85 *(.bss) 86 *(COMMON) 87 } 88 . = ALIGN(64 / 8); 89 _end = . ; 90 PROVIDE (end = .); 91 /* Stabs debugging sections. */ 92 .stab 0 : { *(.stab) } 93 .stabstr 0 : { *(.stabstr) } 94 .stab.excl 0 : { *(.stab.excl) } 95 .stab.exclstr 0 : { *(.stab.exclstr) } 96 .stab.index 0 : { *(.stab.index) } 97 .stab.indexstr 0 : { *(.stab.indexstr) } 98 .comment 0 : { *(.comment) } 99 /* DWARF debug sections. 100 Symbols in the DWARF debugging sections are relative to the beginning 101 of the section so we begin them at 0. */ 102 /* DWARF 1 */ 103 .debug 0 : { *(.debug) } 104 .line 0 : { *(.line) } 105 /* GNU DWARF 1 extensions */ 106 .debug_srcinfo 0 : { *(.debug_srcinfo) } 107 .debug_sfnames 0 : { *(.debug_sfnames) } 108 /* DWARF 1.1 and DWARF 2 */ 109 .debug_aranges 0 : { *(.debug_aranges) } 110 .debug_pubnames 0 : { *(.debug_pubnames) } 111 /* DWARF 2 */ 112 .debug_info 0 : { *(.debug_info) } 113 .debug_abbrev 0 : { *(.debug_abbrev) } 114 .debug_line 0 : { *(.debug_line) } 115 .debug_frame 0 : { *(.debug_frame) } 116 .debug_str 0 : { *(.debug_str) } 117 .debug_loc 0 : { *(.debug_loc) } 118 .debug_macinfo 0 : { *(.debug_macinfo) } 119 /* SGI/MIPS DWARF 2 extensions */ 120 .debug_weaknames 0 : { *(.debug_weaknames) } 121 .debug_funcnames 0 : { *(.debug_funcnames) } 122 .debug_typenames 0 : { *(.debug_typenames) } 123 .debug_varnames 0 : { *(.debug_varnames) } 124 /* These must appear regardless of . */ 125 .note.netbsd.ident : 126 { 127 KEEP(*(.note.netbsd.ident)); 128 } 129} 130