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("elf32-tradlittlemips", "elf32-tradbigmips", 7 "elf32-tradlittlemips") 8 OUTPUT_ARCH(mips) 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 .MIPS.abiflags : { *(.MIPS.abiflags) } 16 .reginfo : { *(.reginfo) } 17 .note.gnu.build-id : { *(.note.gnu.build-id) } 18 .hash : { *(.hash) } 19 .gnu.hash : { *(.gnu.hash) } 20 .dynsym : { *(.dynsym) } 21 .dynstr : { *(.dynstr) } 22 .gnu.version : { *(.gnu.version) } 23 .gnu.version_d : { *(.gnu.version_d) } 24 .gnu.version_r : { *(.gnu.version_r) } 25 .rel.dyn : 26 { 27 *(.rel.init) 28 *(.rel.text .rel.text.* .rel.gnu.linkonce.t.*) 29 *(.rel.fini) 30 *(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*) 31 *(.rel.data.rel.ro .rel.data.rel.ro.* .rel.gnu.linkonce.d.rel.ro.*) 32 *(.rel.data .rel.data.* .rel.gnu.linkonce.d.*) 33 *(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*) 34 *(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*) 35 *(.rel.ctors) 36 *(.rel.dtors) 37 *(.rel.got) 38 *(.rel.dyn) 39 *(.rel.sdata .rel.sdata.* .rel.gnu.linkonce.s.*) 40 *(.rel.sbss .rel.sbss.* .rel.gnu.linkonce.sb.*) 41 *(.rel.sdata2 .rel.sdata2.* .rel.gnu.linkonce.s2.*) 42 *(.rel.sbss2 .rel.sbss2.* .rel.gnu.linkonce.sb2.*) 43 *(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*) 44 PROVIDE_HIDDEN (__rel_iplt_start = .); 45 *(.rel.iplt) 46 PROVIDE_HIDDEN (__rel_iplt_end = .); 47 } 48 .rela.dyn : 49 { 50 *(.rela.init) 51 *(.rela.text .rela.text.* .rela.gnu.linkonce.t.*) 52 *(.rela.fini) 53 *(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*) 54 *(.rela.data .rela.data.* .rela.gnu.linkonce.d.*) 55 *(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*) 56 *(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*) 57 *(.rela.ctors) 58 *(.rela.dtors) 59 *(.rela.got) 60 *(.rela.sdata .rela.sdata.* .rela.gnu.linkonce.s.*) 61 *(.rela.sbss .rela.sbss.* .rela.gnu.linkonce.sb.*) 62 *(.rela.sdata2 .rela.sdata2.* .rela.gnu.linkonce.s2.*) 63 *(.rela.sbss2 .rela.sbss2.* .rela.gnu.linkonce.sb2.*) 64 *(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*) 65 PROVIDE_HIDDEN (__rela_iplt_start = .); 66 *(.rela.iplt) 67 PROVIDE_HIDDEN (__rela_iplt_end = .); 68 } 69 .rel.plt : 70 { 71 *(.rel.plt) 72 } 73 .rela.plt : 74 { 75 *(.rela.plt) 76 } 77 .init : 78 { 79 KEEP (*(SORT_NONE(.init))) 80 } 81 .text : 82 { 83 _ftext = . ; 84 *(.text.unlikely .text.*_unlikely .text.unlikely.*) 85 *(.text.exit .text.exit.*) 86 *(.text.startup .text.startup.*) 87 *(.text.hot .text.hot.*) 88 *(.text .stub .text.* .gnu.linkonce.t.*) 89 /* .gnu.warning sections are handled specially by elf32.em. */ 90 *(.gnu.warning) 91 *(.mips16.fn.*) *(.mips16.call.*) 92 } 93 .fini : 94 { 95 KEEP (*(SORT_NONE(.fini))) 96 } 97 PROVIDE (__etext = .); 98 PROVIDE (_etext = .); 99 PROVIDE (etext = .); 100 .rodata : { *(.rodata .rodata.* .gnu.linkonce.r.*) } 101 .rodata1 : { *(.rodata1) } 102 .sdata2 : 103 { 104 *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) 105 } 106 .sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*) } 107 .eh_frame_hdr : { *(.eh_frame_hdr) } 108 .eh_frame : ONLY_IF_RO { KEEP (*(.eh_frame)) } 109 .gcc_except_table : ONLY_IF_RO { *(.gcc_except_table 110 .gcc_except_table.*) } 111 /* These sections are generated by the Sun/Oracle C++ compiler. */ 112 .exception_ranges : ONLY_IF_RO { *(.exception_ranges 113 .exception_ranges*) } 114 .plt : { *(.plt) } 115 .iplt : { *(.iplt) } 116 /* Adjust the address for the data segment. For 32 bits we want to align 117 at exactly a page boundary to make life easier for apriori. */ 118 . = ALIGN (CONSTANT (MAXPAGESIZE)); . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); 119 /* Exception handling */ 120 .eh_frame : ONLY_IF_RW { KEEP (*(.eh_frame)) } 121 .gcc_except_table : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) } 122 .exception_ranges : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) } 123 /* Thread Local Storage sections */ 124 .tdata : { *(.tdata .tdata.* .gnu.linkonce.td.*) } 125 .tbss : { *(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon) } 126 /* Ensure the __preinit_array_start label is properly aligned. We 127 could instead move the label definition inside the section, but 128 the linker would then create the section even if it turns out to 129 be empty, which isn't pretty. */ 130 . = ALIGN(32 / 8); 131 PROVIDE_HIDDEN (__preinit_array_start = .); 132 .preinit_array : 133 { 134 KEEP (*(.preinit_array)) 135 } 136 PROVIDE_HIDDEN (__preinit_array_end = .); 137 PROVIDE_HIDDEN (__init_array_start = .); 138 .init_array : 139 { 140 KEEP (*crtbegin*.o(.init_array)) 141 KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*))) 142 KEEP (*(.init_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .ctors)) 143 } 144 PROVIDE_HIDDEN (__init_array_end = .); 145 PROVIDE_HIDDEN (__fini_array_start = .); 146 .fini_array : 147 { 148 KEEP (*crtbegin*.o(.fini_array)) 149 KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*))) 150 KEEP (*(.fini_array EXCLUDE_FILE (*crtbegin.o *crtbegin*.o *crtend.o *crtend*.o ) .dtors)) 151 } 152 PROVIDE_HIDDEN (__fini_array_end = .); 153 .ctors : 154 { 155 /* gcc uses crtbegin.o to find the start of 156 the constructors, so we make sure it is 157 first. Because this is a wildcard, it 158 doesn't matter if the user does not 159 actually link against crtbegin.o; the 160 linker won't look for a file to match a 161 wildcard. The wildcard also means that it 162 doesn't matter which directory crtbegin.o 163 is in. */ 164 KEEP (*crtbegin.o(.ctors)) 165 KEEP (*crtbegin*.o(.ctors)) 166 /* We don't want to include the .ctor section from 167 the crtend.o file until after the sorted ctors. 168 The .ctor section from the crtend file contains the 169 end of ctors marker and it must be last */ 170 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .ctors)) 171 KEEP (*(SORT(.ctors.*))) 172 KEEP (*(.ctors)) 173 } 174 .dtors : 175 { 176 KEEP (*crtbegin.o(.dtors)) 177 KEEP (*crtbegin*.o(.dtors)) 178 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend*.o ) .dtors)) 179 KEEP (*(SORT(.dtors.*))) 180 KEEP (*(.dtors)) 181 } 182 .jcr : { KEEP (*(.jcr)) } 183 .data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) } 184 .dynamic : { *(.dynamic) } 185 . = DATA_SEGMENT_RELRO_END (0, .); 186 .got.plt : { *(.got.plt) } 187 .data : 188 { 189 _fdata = . ; 190 *(.data .data.* .gnu.linkonce.d.*) 191 SORT(CONSTRUCTORS) 192 } 193 .data1 : { *(.data1) } 194 . = .; 195 HIDDEN (_gp = ALIGN (16) + 0x7ff0); 196 .got : { *(.got) } 197 /* We want the small data sections together, so single-instruction offsets 198 can access them all, and initialized data all before uninitialized, so 199 we can shorten the on-disk segment size. */ 200 .sdata : 201 { 202 *(.sdata .sdata.* .gnu.linkonce.s.*) 203 } 204 .lit8 : { *(.lit8) } 205 .lit4 : { *(.lit4) } 206 _edata = .; PROVIDE (edata = .); 207 __bss_start = .; 208 _fbss = .; 209 .sbss : 210 { 211 *(.dynsbss) 212 *(.sbss .sbss.* .gnu.linkonce.sb.*) 213 *(.scommon) 214 } 215 .bss : 216 { 217 *(.dynbss) 218 *(.bss .bss.* .gnu.linkonce.b.*) 219 *(COMMON) 220 /* Align here to ensure that the .bss section occupies space up to 221 _end. Align after .bss to ensure correct alignment even if the 222 .bss section disappears because there are no input sections. */ 223 . = ALIGN(32 / 8); 224 } 225 . = ALIGN(32 / 8); 226 . = SEGMENT_START("ldata-segment", .); 227 . = ALIGN(32 / 8); 228 _end = .; 229 _bss_end__ = . ; __bss_end__ = . ; __end__ = . ; 230 PROVIDE (end = .); 231 . = DATA_SEGMENT_END (.); 232 /* Stabs debugging sections. */ 233 .stab 0 : { *(.stab) } 234 .stabstr 0 : { *(.stabstr) } 235 .stab.excl 0 : { *(.stab.excl) } 236 .stab.exclstr 0 : { *(.stab.exclstr) } 237 .stab.index 0 : { *(.stab.index) } 238 .stab.indexstr 0 : { *(.stab.indexstr) } 239 .comment 0 : { *(.comment) } 240 /* DWARF debug sections. 241 Symbols in the DWARF debugging sections are relative to the beginning 242 of the section so we begin them at 0. */ 243 /* DWARF 1 */ 244 .debug 0 : { *(.debug) } 245 .line 0 : { *(.line) } 246 /* GNU DWARF 1 extensions */ 247 .debug_srcinfo 0 : { *(.debug_srcinfo) } 248 .debug_sfnames 0 : { *(.debug_sfnames) } 249 /* DWARF 1.1 and DWARF 2 */ 250 .debug_aranges 0 : { *(.debug_aranges) } 251 .debug_pubnames 0 : { *(.debug_pubnames) } 252 /* DWARF 2 */ 253 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) } 254 .debug_abbrev 0 : { *(.debug_abbrev) } 255 .debug_line 0 : { *(.debug_line .debug_line.* .debug_line_end ) } 256 .debug_frame 0 : { *(.debug_frame) } 257 .debug_str 0 : { *(.debug_str) } 258 .debug_loc 0 : { *(.debug_loc) } 259 .debug_macinfo 0 : { *(.debug_macinfo) } 260 /* SGI/MIPS DWARF 2 extensions */ 261 .debug_weaknames 0 : { *(.debug_weaknames) } 262 .debug_funcnames 0 : { *(.debug_funcnames) } 263 .debug_typenames 0 : { *(.debug_typenames) } 264 .debug_varnames 0 : { *(.debug_varnames) } 265 /* DWARF 3 */ 266 .debug_pubtypes 0 : { *(.debug_pubtypes) } 267 .debug_ranges 0 : { *(.debug_ranges) } 268 /* DWARF Extension. */ 269 .debug_macro 0 : { *(.debug_macro) } 270 .gnu.attributes 0 : { KEEP (*(.gnu.attributes)) } 271 .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } 272 .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } 273 .gcc_compiled_long32 0 : { KEEP(*(.gcc_compiled_long32)) } 274 .gcc_compiled_long64 0 : { KEEP(*(.gcc_compiled_long64)) } 275 /DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) *(.mdebug.*) } 276 } 277
