1 /* Script for -pie -z combreloc: position independent executable, 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-bigaarch64", "elf64-bigaarch64", 7 "elf64-littleaarch64") 8 OUTPUT_ARCH(aarch64) 9 ENTRY(_start) 10 SECTIONS 11 { 12 /* Read-only sections, merged into text segment: */ 13 PROVIDE (__executable_start = 0); . = 0 + SIZEOF_HEADERS; 14 .interp : { *(.interp) } 15 .note.gnu.build-id : { *(.note.gnu.build-id) } 16 .hash : { *(.hash) } 17 .gnu.hash : { *(.gnu.hash) } 18 .dynsym : { *(.dynsym) } 19 .dynstr : { *(.dynstr) } 20 .gnu.version : { *(.gnu.version) } 21 .gnu.version_d : { *(.gnu.version_d) } 22 .gnu.version_r : { *(.gnu.version_r) } 23 .rela.dyn : 24 { 25 *(.rela.init) 26 *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) 27 *(.rela.fini) 28 *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) 29 *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) 30 *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) 31 *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) 32 *(.rela.ctors) 33 *(.rela.dtors) 34 *(.rela.got) 35 *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) 36 *(.rela.ifunc) 37 } 38 .rela.plt : 39 { 40 *(.rela.plt) 41 PROVIDE_HIDDEN (__rela_iplt_start = .); 42 *(.rela.iplt) 43 PROVIDE_HIDDEN (__rela_iplt_end = .); 44 } 45 .init : 46 { 47 KEEP (*(SORT_NONE(.init))) 48 } =0 49 .plt : ALIGN(16) { *(.plt) *(.iplt) } 50 .text : 51 { 52 *(.text.unlikely .text.*_unlikely .text.unlikely.*) 53 *(.text.exit .text.exit.*) 54 *(.text.startup .text.startup.*) 55 *(.text.hot .text.hot.*) 56 *(.text .stub .text.* .gnu.linkonce.t.*) 57 /* .gnu.warning sections are handled specially by elf32.em. */ 58 *(.gnu.warning) 59 } =0 60 .fini : 61 { 62 KEEP (*(SORT_NONE(.fini))) 63 } =0 64 PROVIDE (__etext = .); 65 PROVIDE (_etext = .); 66 PROVIDE (etext = .); 67 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } 68 .rodata1 : { *(.rodata1) } 69 .eh_frame_hdr : { *(.eh_frame_hdr) } 70 .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } 71 .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table 72 .gcc_except_table.*) } 73 /* These sections are generated by the Sun/Oracle C++ compiler. */ 74 .exception_ranges : ONLY_IF_RO { *(.exception_ranges 75 .exception_ranges*) } 76 /* Adjust the address for the data segment. For 32 bits we want to align 77 at exactly a page boundary to make life easier for apriori. */ 78 . = ALIGN (CONSTANT (MAXPAGESIZE)) - ((CONSTANT (MAXPAGESIZE) - .) & (CONSTANT (MAXPAGESIZE) - 1)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); 79 /* Exception handling */ 80 .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } 81 .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } 82 .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } 83 /* Thread Local Storage sections */ 84 .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } 85 .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } 86 /* Ensure the __preinit_array_start label is properly aligned. We 87 could instead move the label definition inside the section, but 88 the linker would then create the section even if it turns out to 89 be empty, which isn't pretty. */ 90 . = ALIGN(64 / 8); 91 PROVIDE_HIDDEN (__preinit_array_start = .); 92 .preinit_array : 93 { 94 KEEP (*(.preinit_array)) 95 } 96 PROVIDE_HIDDEN (__preinit_array_end = .); 97 PROVIDE_HIDDEN (__init_array_start = .); 98 .init_array : 99 { 100 KEEP (*crtbegin*.o(.init_array)) 101 KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) 102 KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors)) 103 } 104 PROVIDE_HIDDEN (__init_array_end = .); 105 PROVIDE_HIDDEN (__fini_array_start = .); 106 .fini_array : 107 { 108 KEEP (*crtbegin*.o(.fini_array)) 109 KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*))) 110 KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors)) 111 } 112 PROVIDE_HIDDEN (__fini_array_end = .); 113 .ctors : 114 { 115 /* gcc uses crtbegin.o to find the start of 116 the constructors, so we make sure it is 117 first. Because this is a wildcard, it 118 doesn't matter if the user does not 119 actually link against crtbegin.o; the 120 linker won't look for a file to match a 121 wildcard. The wildcard also means that it 122 doesn't matter which directory crtbegin.o 123 is in. */ 124 KEEP (*crtbegin.o(.ctors)) 125 KEEP (*crtbegin*.o(.ctors)) 126 /* We don't want to include the .ctor section from 127 the crtend.o file until after the sorted ctors. 128 The .ctor section from the crtend file contains the 129 end of ctors marker and it must be last */ 130 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors)) 131 KEEP (*(SORT(.ctors.*))) 132 KEEP (*(.ctors)) 133 } 134 .dtors : 135 { 136 KEEP (*crtbegin.o(.dtors)) 137 KEEP (*crtbegin*.o(.dtors)) 138 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors)) 139 KEEP (*(SORT(.dtors.*))) 140 KEEP (*(.dtors)) 141 } 142 .jcr : { KEEP (*(.jcr)) } 143 .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) } 144 .dynamic : { *(.dynamic) } 145 .got : { *(.got) *(.igot) } 146 . = DATA_SEGMENT_RELRO_END (24, .); 147 .got.plt : { *(.got.plt) *(.igot.plt) } 148 .data : 149 { 150 PROVIDE (__data_start = .); 151 *(.data .data.* .gnu.linkonce.d.*) 152 SORT(CONSTRUCTORS) 153 } 154 .data1 : { *(.data1) } 155 _edata = .; PROVIDE (edata = .); 156 __bss_start = .; 157 __bss_start__ = .; 158 .bss : 159 { 160 *(.dynbss) 161 *(.bss .bss.* .gnu.linkonce.b.*) 162 *(COMMON) 163 /* Align here to ensure that the .bss section occupies space up to 164 _end. Align after .bss to ensure correct alignment even if the 165 .bss section disappears because there are no input sections. */ 166 . = ALIGN(64 / 8); 167 } 168 _bss_end__ = . ; __bss_end__ = . ; 169 . = ALIGN(64 / 8); 170 . = SEGMENT_START("ldata-segment", .); 171 . = ALIGN(64 / 8); 172 __end__ = . ; 173 _end = .; 174 _bss_end__ = . ; __bss_end__ = . ; __end__ = . ; 175 PROVIDE (end = .); 176 . = DATA_SEGMENT_END (.); 177 /* Stabs debugging sections. */ 178 .stab 0 : { *(.stab) } 179 .stabstr 0 : { *(.stabstr) } 180 .stab.excl 0 : { *(.stab.excl) } 181 .stab.exclstr 0 : { *(.stab.exclstr) } 182 .stab.index 0 : { *(.stab.index) } 183 .stab.indexstr 0 : { *(.stab.indexstr) } 184 .comment 0 : { *(.comment) } 185 /* DWARF debug sections. 186 Symbols in the DWARF debugging sections are relative to the beginning 187 of the section so we begin them at 0. */ 188 /* DWARF 1 */ 189 .debug 0 : { *(.debug) } 190 .line 0 : { *(.line) } 191 /* GNU DWARF 1 extensions */ 192 .debug_srcinfo 0 : { *(.debug_srcinfo) } 193 .debug_sfnames 0 : { *(.debug_sfnames) } 194 /* DWARF 1.1 and DWARF 2 */ 195 .debug_aranges 0 : { *(.debug_aranges) } 196 .debug_pubnames 0 : { *(.debug_pubnames) } 197 /* DWARF 2 */ 198 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } 199 .debug_abbrev 0 : { *(.debug_abbrev) } 200 .debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) } 201 .debug_frame 0 : { *(.debug_frame) } 202 .debug_str 0 : { *(.debug_str) } 203 .debug_loc 0 : { *(.debug_loc) } 204 .debug_macinfo 0 : { *(.debug_macinfo) } 205 /* SGI/MIPS DWARF 2 extensions */ 206 .debug_weaknames 0 : { *(.debug_weaknames) } 207 .debug_funcnames 0 : { *(.debug_funcnames) } 208 .debug_typenames 0 : { *(.debug_typenames) } 209 .debug_varnames 0 : { *(.debug_varnames) } 210 /* DWARF 3 */ 211 .debug_pubtypes 0 : { *(.debug_pubtypes) } 212 .debug_ranges 0 : { *(.debug_ranges) } 213 /* DWARF Extension. */ 214 .debug_macro 0 : { *(.debug_macro) } 215 .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) KEEP (*(.gnu.attributes)) } 216 .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) } 217 /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) } 218 } 219
