1 /* Script for --shared -z combreloc -z now -z relro: shared library, combine & sort relocs */ 2 /* Copyright (C) 2014 Free Software Foundation, Inc. 3 Copying and distribution of this script, with or without modification, 4 are permitted in any medium without royalty provided the copyright 5 notice and this notice are preserved. */ 6 OUTPUT_FORMAT("elf64-x86-64", "elf64-x86-64", 7 "elf64-x86-64") 8 OUTPUT_ARCH(i386:x86-64) 9 ENTRY(_start) 10 SECTIONS 11 { 12 /* Read-only sections, merged into text segment: */ 13 . = 0 + SIZEOF_HEADERS; 14 .note.gnu.build-id : { *(.note.gnu.build-id) } 15 .hash : { *(.hash) } 16 .gnu.hash : { *(.gnu.hash) } 17 .dynsym : { *(.dynsym) } 18 .dynstr : { *(.dynstr) } 19 .gnu.version : { *(.gnu.version) } 20 .gnu.version_d : { *(.gnu.version_d) } 21 .gnu.version_r : { *(.gnu.version_r) } 22 .rela.dyn : 23 { 24 *(.rela.init) 25 *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) 26 *(.rela.fini) 27 *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) 28 *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) 29 *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) 30 *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) 31 *(.rela.ctors) 32 *(.rela.dtors) 33 *(.rela.got) 34 *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) 35 *(.rela.ldata .rela.ldata.* .rela.gnu.linkonce.l.*) 36 *(.rela.lbss .rela.lbss.* .rela.gnu.linkonce.lb.*) 37 *(.rela.lrodata .rela.lrodata.* .rela.gnu.linkonce.lr.*) 38 *(.rela.ifunc) 39 } 40 .rela.plt : 41 { 42 *(.rela.plt) 43 *(.rela.iplt) 44 } 45 .init : 46 { 47 KEEP (*(SORT_NONE(.init))) 48 } 49 .plt : { *(.plt) *(.iplt) } 50 .plt.bnd : { *(.plt.bnd) } 51 .text : 52 { 53 *(.text.unlikely .text.*_unlikely .text.unlikely.*) 54 *(.text.exit .text.exit.*) 55 *(.text.startup .text.startup.*) 56 *(.text.hot .text.hot.*) 57 *(.text .stub .text.* .gnu.linkonce.t.*) 58 /* .gnu.warning sections are handled specially by elf32.em. */ 59 *(.gnu.warning) 60 } 61 .fini : 62 { 63 KEEP (*(SORT_NONE(.fini))) 64 } 65 PROVIDE (__etext = .); 66 PROVIDE (_etext = .); 67 PROVIDE (etext = .); 68 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } 69 .rodata1 : { *(.rodata1) } 70 .eh_frame_hdr : { *(.eh_frame_hdr) } 71 .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } 72 .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table 73 .gcc_except_table.*) } 74 /* These sections are generated by the Sun/Oracle C++ compiler. */ 75 .exception_ranges : ONLY_IF_RO { *(.exception_ranges 76 .exception_ranges*) } 77 /* Adjust the address for the data segment. For 32 bits we want to align 78 at exactly a page boundary to make life easier for apriori. */ 79 . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); 80 /* Exception handling */ 81 .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } 82 .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } 83 .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } 84 /* Thread Local Storage sections */ 85 .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } 86 .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } 87 /* Ensure the __preinit_array_start label is properly aligned. We 88 could instead move the label definition inside the section, but 89 the linker would then create the section even if it turns out to 90 be empty, which isn't pretty. */ 91 . = ALIGN(64 / 8); 92 .preinit_array : 93 { 94 KEEP (*(.preinit_array)) 95 } 96 .init_array : 97 { 98 KEEP (*crtbegin*.o(.init_array)) 99 KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) 100 KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors)) 101 } 102 .fini_array : 103 { 104 KEEP (*crtbegin*.o(.fini_array)) 105 KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*))) 106 KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors)) 107 } 108 .ctors : 109 { 110 /* gcc uses crtbegin.o to find the start of 111 the constructors, so we make sure it is 112 first. Because this is a wildcard, it 113 doesn't matter if the user does not 114 actually link against crtbegin.o; the 115 linker won't look for a file to match a 116 wildcard. The wildcard also means that it 117 doesn't matter which directory crtbegin.o 118 is in. */ 119 KEEP (*crtbegin.o(.ctors)) 120 KEEP (*crtbegin*.o(.ctors)) 121 /* We don't want to include the .ctor section from 122 the crtend.o file until after the sorted ctors. 123 The .ctor section from the crtend file contains the 124 end of ctors marker and it must be last */ 125 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors)) 126 KEEP (*(SORT(.ctors.*))) 127 KEEP (*(.ctors)) 128 } 129 .dtors : 130 { 131 KEEP (*crtbegin.o(.dtors)) 132 KEEP (*crtbegin*.o(.dtors)) 133 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors)) 134 KEEP (*(SORT(.dtors.*))) 135 KEEP (*(.dtors)) 136 } 137 .jcr : { KEEP (*(.jcr)) } 138 .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) } 139 .dynamic : { *(.dynamic) } 140 .got : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) } 141 . = DATA_SEGMENT_RELRO_END (0, .); 142 .data : 143 { 144 *(.data .data.* .gnu.linkonce.d.*) 145 SORT(CONSTRUCTORS) 146 } 147 .data1 : { *(.data1) } 148 _edata = .; PROVIDE (edata = .); 149 __bss_start = .; 150 .bss : 151 { 152 *(.dynbss) 153 *(.bss .bss.* .gnu.linkonce.b.*) 154 *(COMMON) 155 /* Align here to ensure that the .bss section occupies space up to 156 _end. Align after .bss to ensure correct alignment even if the 157 .bss section disappears because there are no input sections. */ 158 . = ALIGN(64 / 8); 159 } 160 .lbss : 161 { 162 *(.dynlbss) 163 *(.lbss .lbss.* .gnu.linkonce.lb.*) 164 *(LARGE_COMMON) 165 } 166 . = ALIGN(64 / 8); 167 . = SEGMENT_START("ldata-segment", .); 168 .lrodata ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) : 169 { 170 *(.lrodata .lrodata.* .gnu.linkonce.lr.*) 171 } 172 .ldata ALIGN(CONSTANT (MAXPAGESIZE)) + (. & (CONSTANT (MAXPAGESIZE) - 1)) : 173 { 174 *(.ldata .ldata.* .gnu.linkonce.l.*) 175 . = ALIGN(. != 0 ? 64 / 8 : 1); 176 } 177 . = ALIGN(64 / 8); 178 _end = .; 179 _bss_end__ = . ; __bss_end__ = . ; __end__ = . ; 180 PROVIDE (end = .); 181 . = DATA_SEGMENT_END (.); 182 /* Stabs debugging sections. */ 183 .stab 0 : { *(.stab) } 184 .stabstr 0 : { *(.stabstr) } 185 .stab.excl 0 : { *(.stab.excl) } 186 .stab.exclstr 0 : { *(.stab.exclstr) } 187 .stab.index 0 : { *(.stab.index) } 188 .stab.indexstr 0 : { *(.stab.indexstr) } 189 .comment 0 : { *(.comment) } 190 /* DWARF debug sections. 191 Symbols in the DWARF debugging sections are relative to the beginning 192 of the section so we begin them at 0. */ 193 /* DWARF 1 */ 194 .debug 0 : { *(.debug) } 195 .line 0 : { *(.line) } 196 /* GNU DWARF 1 extensions */ 197 .debug_srcinfo 0 : { *(.debug_srcinfo) } 198 .debug_sfnames 0 : { *(.debug_sfnames) } 199 /* DWARF 1.1 and DWARF 2 */ 200 .debug_aranges 0 : { *(.debug_aranges) } 201 .debug_pubnames 0 : { *(.debug_pubnames) } 202 /* DWARF 2 */ 203 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } 204 .debug_abbrev 0 : { *(.debug_abbrev) } 205 .debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) } 206 .debug_frame 0 : { *(.debug_frame) } 207 .debug_str 0 : { *(.debug_str) } 208 .debug_loc 0 : { *(.debug_loc) } 209 .debug_macinfo 0 : { *(.debug_macinfo) } 210 /* SGI/MIPS DWARF 2 extensions */ 211 .debug_weaknames 0 : { *(.debug_weaknames) } 212 .debug_funcnames 0 : { *(.debug_funcnames) } 213 .debug_typenames 0 : { *(.debug_typenames) } 214 .debug_varnames 0 : { *(.debug_varnames) } 215 /* DWARF 3 */ 216 .debug_pubtypes 0 : { *(.debug_pubtypes) } 217 .debug_ranges 0 : { *(.debug_ranges) } 218 /* DWARF Extension. */ 219 .debug_macro 0 : { *(.debug_macro) } 220 .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } 221 /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) } 222 } 223