| 1 | # |
| 2 | # Unusual variables checked by this code: |
| 3 | # NOP - two byte opcode for no-op (defaults to 0) |
| 4 | # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start |
| 5 | # INITIAL_READONLY_SECTIONS - at start of text segment |
| 6 | # OTHER_READONLY_SECTIONS - other than .text .init .rodata ... |
| 7 | # (e.g., .PARISC.milli) |
| 8 | # OTHER_TEXT_SECTIONS - these get put in .text when relocating |
| 9 | # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... |
| 10 | # (e.g., .PARISC.global) |
| 11 | # OTHER_SECTIONS - at the end |
| 12 | # EXECUTABLE_SYMBOLS - symbols that must be defined for an |
| 13 | # executable (e.g., _DYNAMIC_LINK) |
| 14 | # TEXT_START_SYMBOLS - symbols that appear at the start of the |
| 15 | # .text section. |
| 16 | # DATA_START_SYMBOLS - symbols that appear at the start of the |
| 17 | # .data section. |
| 18 | # OTHER_GOT_SYMBOLS - symbols defined just before .got. |
| 19 | # OTHER_GOT_SECTIONS - sections just after .got and .sdata. |
| 20 | # OTHER_BSS_SYMBOLS - symbols that appear at the start of the |
| 21 | # .bss section besides __bss_start. |
| 22 | # DATA_PLT - .plt should be in data segment, not text segment. |
| 23 | # TEXT_DYNAMIC - .dynamic in text segment, not data segment. |
| 24 | # EMBEDDED - whether this is for an embedded system. |
| 25 | # SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set |
| 26 | # start address of shared library. |
| 27 | # |
| 28 | # When adding sections, do note that the names of some sections are used |
| 29 | # when specifying the start address of the next. |
| 30 | # |
| 31 | |
| 32 | test -z "$ENTRY" && ENTRY=_start |
| 33 | test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
| 34 | test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
| 35 | if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi |
| 36 | test -z "${ELFSIZE}" && ELFSIZE=32 |
| 37 | test "$LD_FLAG" = "N" && DATA_ADDR=. |
| 38 | INTERP=".interp ${RELOCATING-0} : { *(.interp) }" |
| 39 | PLT=".plt ${RELOCATING-0} : { *(.plt) }" |
| 40 | DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }" |
| 41 | |
| 42 | # if this is for an embedded system, don't add SIZEOF_HEADERS. |
| 43 | if [ -z "$EMBEDDED" ]; then |
| 44 | test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS" |
| 45 | else |
| 46 | test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}" |
| 47 | fi |
| 48 | |
| 49 | cat <<EOF |
| 50 | OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", |
| 51 | "${LITTLE_OUTPUT_FORMAT}") |
| 52 | OUTPUT_ARCH(${OUTPUT_ARCH}) |
| 53 | ENTRY(${ENTRY}) |
| 54 | |
| 55 | ${RELOCATING+${LIB_SEARCH_DIRS}} |
| 56 | ${RELOCATING+/* Do we need any of these for elf? |
| 57 | __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */} |
| 58 | ${RELOCATING+${EXECUTABLE_SYMBOLS}} |
| 59 | ${RELOCATING- /* For some reason, the Solaris linker makes bad executables |
| 60 | if gld -r is used and the intermediate file has sections starting |
| 61 | at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld |
| 62 | bug. But for now assigning the zero vmas works. */} |
| 63 | SECTIONS |
| 64 | { |
| 65 | /* Read-only sections, merged into text segment: */ |
| 66 | ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}} |
| 67 | ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}} |
| 68 | ${CREATE_SHLIB-${INTERP}} |
| 69 | ${INITIAL_READONLY_SECTIONS} |
| 70 | ${TEXT_DYNAMIC+${DYNAMIC}} |
| 71 | .hash ${RELOCATING-0} : { *(.hash) } |
| 72 | .dynsym ${RELOCATING-0} : { *(.dynsym) } |
| 73 | .dynstr ${RELOCATING-0} : { *(.dynstr) } |
| 74 | .gnu.version ${RELOCATING-0} : { *(.gnu.version) } |
| 75 | .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } |
| 76 | .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } |
| 77 | .rel.text ${RELOCATING-0} : |
| 78 | { *(.rel.text) ${RELOCATING+*(.rel.gnu.linkonce.t*)} } |
| 79 | .rela.text ${RELOCATING-0} : |
| 80 | { *(.rela.text) ${RELOCATING+*(.rela.gnu.linkonce.t*)} } |
| 81 | .rel.data ${RELOCATING-0} : |
| 82 | { *(.rel.data) ${RELOCATING+*(.rel.gnu.linkonce.d*)} } |
| 83 | .rela.data ${RELOCATING-0} : |
| 84 | { *(.rela.data) ${RELOCATING+*(.rela.gnu.linkonce.d*)} } |
| 85 | .rel.rodata ${RELOCATING-0} : |
| 86 | { *(.rel.rodata) ${RELOCATING+*(.rel.gnu.linkonce.r*)} } |
| 87 | .rela.rodata ${RELOCATING-0} : |
| 88 | { *(.rela.rodata) ${RELOCATING+*(.rela.gnu.linkonce.r*)} } |
| 89 | .rel.got ${RELOCATING-0} : { *(.rel.got) } |
| 90 | .rela.got ${RELOCATING-0} : { *(.rela.got) } |
| 91 | .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) } |
| 92 | .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } |
| 93 | .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) } |
| 94 | .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } |
| 95 | .rel.init ${RELOCATING-0} : { *(.rel.init) } |
| 96 | .rela.init ${RELOCATING-0} : { *(.rela.init) } |
| 97 | .rel.fini ${RELOCATING-0} : { *(.rel.fini) } |
| 98 | .rela.fini ${RELOCATING-0} : { *(.rela.fini) } |
| 99 | .rel.bss ${RELOCATING-0} : { *(.rel.bss) } |
| 100 | .rela.bss ${RELOCATING-0} : { *(.rela.bss) } |
| 101 | .rel.plt ${RELOCATING-0} : { *(.rel.plt) } |
| 102 | .rela.plt ${RELOCATING-0} : { *(.rela.plt) } |
| 103 | .init ${RELOCATING-0} : { *(.init) } =${NOP-0} |
| 104 | ${DATA_PLT-${PLT}} |
| 105 | .text ${RELOCATING-0} : |
| 106 | { |
| 107 | ${RELOCATING+${TEXT_START_SYMBOLS}} |
| 108 | *(.text) |
| 109 | *(.stub) |
| 110 | /* .gnu.warning sections are handled specially by elf32.em. */ |
| 111 | *(.gnu.warning) |
| 112 | ${RELOCATING+*(.gnu.linkonce.t*)} |
| 113 | ${RELOCATING+${OTHER_TEXT_SECTIONS}} |
| 114 | } =${NOP-0} |
| 115 | ${RELOCATING+_etext = .;} |
| 116 | ${RELOCATING+PROVIDE (etext = .);} |
| 117 | .fini ${RELOCATING-0} : { *(.fini) } =${NOP-0} |
| 118 | .rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.gnu.linkonce.r*)} } |
| 119 | .rodata1 ${RELOCATING-0} : { *(.rodata1) } |
| 120 | ${RELOCATING+${OTHER_READONLY_SECTIONS}} |
| 121 | |
| 122 | /* Adjust the address for the data segment. We want to adjust up to |
| 123 | the same address within the page on the next page up. */ |
| 124 | ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} |
| 125 | ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} |
| 126 | |
| 127 | .data ${RELOCATING-0} : |
| 128 | { |
| 129 | ${RELOCATING+${DATA_START_SYMBOLS}} |
| 130 | *(.data) |
| 131 | ${RELOCATING+*(.gnu.linkonce.d*)} |
| 132 | ${CONSTRUCTING+CONSTRUCTORS} |
| 133 | } |
| 134 | .data1 ${RELOCATING-0} : { *(.data1) } |
| 135 | ${RELOCATING+${OTHER_READWRITE_SECTIONS}} |
| 136 | .ctors ${RELOCATING-0} : |
| 137 | { |
| 138 | ${CONSTRUCTING+${CTOR_START}} |
| 139 | *(SORT(.ctors.*)) |
| 140 | *(.ctors) |
| 141 | ${CONSTRUCTING+${CTOR_END}} |
| 142 | } |
| 143 | .dtors ${RELOCATING-0} : |
| 144 | { |
| 145 | ${CONSTRUCTING+${DTOR_START}} |
| 146 | *(SORT(.dtors.*)) |
| 147 | *(.dtors) |
| 148 | ${CONSTRUCTING+${DTOR_END}} |
| 149 | } |
| 150 | ${DATA_PLT+${PLT}} |
| 151 | ${RELOCATING+${OTHER_GOT_SYMBOLS}} |
| 152 | .got ${RELOCATING-0} : { *(.got.plt) *(.got) } |
| 153 | ${TEXT_DYNAMIC-${DYNAMIC}} |
| 154 | /* We want the small data sections together, so single-instruction offsets |
| 155 | can access them all, and initialized data all before uninitialized, so |
| 156 | we can shorten the on-disk segment size. */ |
| 157 | .sdata ${RELOCATING-0} : { *(.sdata) } |
| 158 | ${RELOCATING+${OTHER_GOT_SECTIONS}} |
| 159 | ${RELOCATING+_edata = .;} |
| 160 | ${RELOCATING+PROVIDE (edata = .);} |
| 161 | ${RELOCATING+__bss_start = .;} |
| 162 | ${RELOCATING+${OTHER_BSS_SYMBOLS}} |
| 163 | .sbss ${RELOCATING-0} : { *(.sbss) *(.scommon) } |
| 164 | .bss ${RELOCATING-0} : |
| 165 | { |
| 166 | *(.dynbss) |
| 167 | *(.bss) |
| 168 | *(COMMON) |
| 169 | } |
| 170 | ${RELOCATING+. = ALIGN(${ELFSIZE} / 8);} |
| 171 | ${RELOCATING+_end = . ;} |
| 172 | ${RELOCATING+PROVIDE (end = .);} |
| 173 | |
| 174 | /* Stabs debugging sections. */ |
| 175 | .stab 0 : { *(.stab) } |
| 176 | .stabstr 0 : { *(.stabstr) } |
| 177 | .stab.excl 0 : { *(.stab.excl) } |
| 178 | .stab.exclstr 0 : { *(.stab.exclstr) } |
| 179 | .stab.index 0 : { *(.stab.index) } |
| 180 | .stab.indexstr 0 : { *(.stab.indexstr) } |
| 181 | |
| 182 | .comment 0 : { *(.comment) } |
| 183 | |
| 184 | /* DWARF debug sections. |
| 185 | Symbols in the DWARF debugging sections are relative to the beginning |
| 186 | of the section so we begin them at 0. */ |
| 187 | |
| 188 | /* DWARF 1 */ |
| 189 | .debug 0 : { *(.debug) } |
| 190 | .line 0 : { *(.line) } |
| 191 | |
| 192 | /* GNU DWARF 1 extensions */ |
| 193 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
| 194 | .debug_sfnames 0 : { *(.debug_sfnames) } |
| 195 | |
| 196 | /* DWARF 1.1 and DWARF 2 */ |
| 197 | .debug_aranges 0 : { *(.debug_aranges) } |
| 198 | .debug_pubnames 0 : { *(.debug_pubnames) } |
| 199 | |
| 200 | /* DWARF 2 */ |
| 201 | .debug_info 0 : { *(.debug_info) } |
| 202 | .debug_abbrev 0 : { *(.debug_abbrev) } |
| 203 | .debug_line 0 : { *(.debug_line) } |
| 204 | .debug_frame 0 : { *(.debug_frame) } |
| 205 | .debug_str 0 : { *(.debug_str) } |
| 206 | .debug_loc 0 : { *(.debug_loc) } |
| 207 | .debug_macinfo 0 : { *(.debug_macinfo) } |
| 208 | |
| 209 | /* SGI/MIPS DWARF 2 extensions */ |
| 210 | .debug_weaknames 0 : { *(.debug_weaknames) } |
| 211 | .debug_funcnames 0 : { *(.debug_funcnames) } |
| 212 | .debug_typenames 0 : { *(.debug_typenames) } |
| 213 | .debug_varnames 0 : { *(.debug_varnames) } |
| 214 | |
| 215 | ${RELOCATING+${OTHER_RELOCATING_SECTIONS}} |
| 216 | |
| 217 | /* These must appear regardless of ${RELOCATING}. */ |
| 218 | ${OTHER_SECTIONS} |
| 219 | } |
| 220 | EOF |