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@ -1,288 +0,0 @@ |
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# |
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# Unusual variables checked by this code: |
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# NOP - two byte opcode for no-op (defaults to 0) |
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# DATA_ADDR - if end-of-text-plus-one-page isn't right for data start |
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# OTHER_READONLY_SECTIONS - other than .text .init .rodata ... |
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# (e.g., .PARISC.milli) |
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# OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... |
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# (e.g., .PARISC.global) |
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# OTHER_SECTIONS - at the end |
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# EXECUTABLE_SYMBOLS - symbols that must be defined for an |
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# executable (e.g., _DYNAMIC_LINK) |
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# TEXT_START_SYMBOLS - symbols that appear at the start of the |
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# .text section. |
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# DATA_START_SYMBOLS - symbols that appear at the start of the |
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# .data section. |
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# OTHER_BSS_SYMBOLS - symbols that appear at the start of the |
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# .bss section besides __bss_start. |
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# |
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# When adding sections, do note that the names of some sections are used |
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# when specifying the start address of the next. |
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# |
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test -z "$ENTRY" && ENTRY=_start |
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test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
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test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} |
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test "$LD_FLAG" = "N" && DATA_ADDR=. |
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SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) }" |
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SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) }" |
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INTERP=".interp ${RELOCATING-0} : { *(.interp) }" |
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PLT=".plt ${RELOCATING-0} : { *(.plt) }" |
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CTOR=".ctors ${CONSTRUCTING-0} : |
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{ |
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${CONSTRUCTING+${CTOR_START}} |
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/* gcc uses crtbegin.o to find the start of |
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the constructors, so we make sure it is |
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first. Because this is a wildcard, it |
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doesn't matter if the user does not |
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actually link against crtbegin.o; the |
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linker won't look for a file to match a |
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wildcard. The wildcard also means that it |
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doesn't matter which directory crtbegin.o |
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is in. */ |
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KEEP (*crtbegin.o(.ctors)) |
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/* We don't want to include the .ctor section from |
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from the crtend.o file until after the sorted ctors. |
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The .ctor section from the crtend file contains the |
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end of ctors marker and it must be last */ |
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) |
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KEEP (*(SORT(.ctors.*))) |
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KEEP (*(.ctors)) |
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${CONSTRUCTING+${CTOR_END}} |
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}" |
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DTOR=" .dtors ${CONSTRUCTING-0} : |
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{ |
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${CONSTRUCTING+${DTOR_START}} |
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KEEP (*crtbegin.o(.dtors)) |
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) |
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KEEP (*(SORT(.dtors.*))) |
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KEEP (*(.dtors)) |
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${CONSTRUCTING+${DTOR_END}} |
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}" |
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cat <<EOF |
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OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", |
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"${LITTLE_OUTPUT_FORMAT}") |
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OUTPUT_ARCH(${ARCH}) |
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ENTRY(${ENTRY}) |
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${RELOCATING+${LIB_SEARCH_DIRS}} |
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${RELOCATING+/* Do we need any of these for elf? |
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__DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */} |
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${RELOCATING+${EXECUTABLE_SYMBOLS}} |
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${RELOCATING- /* For some reason, the Solaris linker makes bad executables |
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if gld -r is used and the intermediate file has sections starting |
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at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld |
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bug. But for now assigning the zero vmas works. */} |
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${RELOCATING+PROVIDE (__stack = 0);} |
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${RELOCATING+PROVIDE (___stack = 0);} |
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SECTIONS |
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{ |
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/* Read-only sections, merged into text segment: */ |
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${CREATE_SHLIB-${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;}} |
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${CREATE_SHLIB+${RELOCATING+. = SIZEOF_HEADERS;}} |
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${CREATE_SHLIB-${INTERP}} |
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.hash ${RELOCATING-0} : { *(.hash) } |
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.dynsym ${RELOCATING-0} : { *(.dynsym) } |
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.dynstr ${RELOCATING-0} : { *(.dynstr) } |
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.gnu.version ${RELOCATING-0} : { *(.gnu.version) } |
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.gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } |
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.gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } |
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.rela.text ${RELOCATING-0} : |
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{ |
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*(.rela.text) |
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${RELOCATING+*(.rela.text.*)} |
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${RELOCATING+*(.rela.gnu.linkonce.t*)} |
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} |
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.rela.data ${RELOCATING-0} : |
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{ |
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*(.rela.data) |
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${RELOCATING+*(.rela.data.*)} |
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${RELOCATING+*(.rela.gnu.linkonce.d*)} |
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} |
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.rela.rodata ${RELOCATING-0} : |
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{ |
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*(.rela.rodata) |
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${RELOCATING+*(.rela.rodata.*)} |
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${RELOCATING+*(.rela.gnu.linkonce.r*)} |
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} |
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.rela.got ${RELOCATING-0} : { *(.rela.got) } |
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.rela.got1 ${RELOCATING-0} : { *(.rela.got1) } |
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.rela.got2 ${RELOCATING-0} : { *(.rela.got2) } |
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.rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } |
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.rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } |
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.rela.init ${RELOCATING-0} : { *(.rela.init) } |
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.rela.fini ${RELOCATING-0} : { *(.rela.fini) } |
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.rela.bss ${RELOCATING-0} : { *(.rela.bss) } |
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.rela.plt ${RELOCATING-0} : { *(.rela.plt) } |
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.rela.sdata ${RELOCATING-0} : { *(.rela.sdata) } |
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.rela.sbss ${RELOCATING-0} : { *(.rela.sbss) } |
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.rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2) } |
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.rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2) } |
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.text ${RELOCATING-0} : |
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{ |
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${RELOCATING+${TEXT_START_SYMBOLS}} |
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*(.text) |
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${RELOCATING+*(.text.*)} |
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/* .gnu.warning sections are handled specially by elf32.em. */ |
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*(.gnu.warning) |
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${RELOCATING+*(.gnu.linkonce.t*)} |
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} =${NOP-0} |
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.init ${RELOCATING-0} : { KEEP (*(.init)) } =${NOP-0} |
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.fini ${RELOCATING-0} : { KEEP (*(.fini)) } =${NOP-0} |
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.rodata ${RELOCATING-0} : |
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{ |
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*(.rodata) |
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${RELOCATING+*(.rodata.*)} |
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${RELOCATING+*(.gnu.linkonce.r*)} |
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} |
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.rodata1 ${RELOCATING-0} : { *(.rodata1) } |
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${RELOCATING+_etext = .;} |
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${RELOCATING+PROVIDE (etext = .);} |
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${RELOCATING+PROVIDE (__etext = .);} |
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${CREATE_SHLIB-${SDATA2}} |
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${CREATE_SHLIB-${SBSS2}} |
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${RELOCATING+${OTHER_READONLY_SECTIONS}} |
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/* Adjust the address for the data segment. We want to adjust up to |
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the same address within the page on the next page up. It would |
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be more correct to do this: |
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${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (ALIGN(8) & (${MAXPAGESIZE} - 1))};} |
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The current expression does not correctly handle the case of a |
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text segment ending precisely at the end of a page; it causes the |
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data segment to skip a page. The above expression does not have |
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this problem, but it will currently (2/95) cause BFD to allocate |
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a single segment, combining both text and data, for this case. |
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This will prevent the text segment from being shared among |
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multiple executions of the program; I think that is more |
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important than losing a page of the virtual address space (note |
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that no actual memory is lost; the page which is skipped can not |
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be referenced). */ |
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${RELOCATING+. = ${DATA_ADDR- ALIGN(8) + ${MAXPAGESIZE}};} |
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.data ${RELOCATING-0} : |
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{ |
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${RELOCATING+${DATA_START_SYMBOLS}} |
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*(.data) |
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${RELOCATING+*(.data.*)} |
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${RELOCATING+*(.gnu.linkonce.d*)} |
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${CONSTRUCTING+CONSTRUCTORS} |
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} |
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.data1 ${RELOCATING-0} : { *(.data1) } |
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${RELOCATING+${OTHER_READWRITE_SECTIONS}} |
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.got1 ${RELOCATING-0} : { *(.got1) } |
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.dynamic ${RELOCATING-0} : { *(.dynamic) } |
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/* Put .ctors and .dtors next to the .got2 section, so that the pointers |
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get relocated with -mrelocatable. Also put in the .fixup pointers. |
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The current compiler no longer needs this, but keep it around for 2.7.2 */ |
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${RELOCATING+PROVIDE (_GOT2_START_ = .);} |
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${RELOCATING+PROVIDE (__GOT2_START_ = .);} |
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.got2 ${RELOCATING-0} : { *(.got2) } |
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${RELOCATING+PROVIDE (__CTOR_LIST__ = .);} |
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${RELOCATING+PROVIDE (___CTOR_LIST__ = .);} |
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${RELOCATING+${CTOR}} |
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${RELOCATING+PROVIDE (__CTOR_END__ = .);} |
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${RELOCATING+PROVIDE (___CTOR_END__ = .);} |
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${RELOCATING+PROVIDE (__DTOR_LIST__ = .);} |
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${RELOCATING+PROVIDE (___DTOR_LIST__ = .);} |
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${RELOCATING+${DTOR}} |
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${RELOCATING+PROVIDE (__DTOR_END__ = .);} |
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${RELOCATING+PROVIDE (___DTOR_END__ = .);} |
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${RELOCATING+PROVIDE (_FIXUP_START_ = .);} |
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${RELOCATING+PROVIDE (__FIXUP_START_ = .);} |
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.fixup ${RELOCATING-0} : { *(.fixup) } |
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${RELOCATING+PROVIDE (_FIXUP_END_ = .);} |
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${RELOCATING+PROVIDE (__FIXUP_END_ = .);} |
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${RELOCATING+PROVIDE (_GOT2_END_ = .);} |
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${RELOCATING+PROVIDE (__GOT2_END_ = .);} |
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${RELOCATING+PROVIDE (_GOT_START_ = .);} |
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${RELOCATING+PROVIDE (__GOT_START_ = .);} |
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.got ${RELOCATING-0} : { *(.got) } |
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.got.plt ${RELOCATING-0} : { *(.got.plt) } |
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${CREATE_SHLIB+${SDATA2}} |
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${CREATE_SHLIB+${SBSS2}} |
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${RELOCATING+PROVIDE (_GOT_END_ = .);} |
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${RELOCATING+PROVIDE (__GOT_END_ = .);} |
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/* We want the small data sections together, so single-instruction offsets |
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can access them all, and initialized data all before uninitialized, so |
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we can shorten the on-disk segment size. */ |
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.sdata ${RELOCATING-0} : { *(.sdata) } |
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${RELOCATING+_edata = .;} |
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${RELOCATING+PROVIDE (edata = .);} |
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${RELOCATING+PROVIDE (__edata = .);} |
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.sbss ${RELOCATING-0} : |
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{ |
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${RELOCATING+PROVIDE (__sbss_start = .);} |
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${RELOCATING+PROVIDE (___sbss_start = .);} |
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*(.sbss) |
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*(.scommon) |
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*(.dynsbss) |
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${RELOCATING+PROVIDE (__sbss_end = .);} |
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${RELOCATING+PROVIDE (___sbss_end = .);} |
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} |
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${PLT} |
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.bss ${RELOCATING-0} : |
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{ |
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${RELOCATING+${OTHER_BSS_SYMBOLS}} |
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${RELOCATING+PROVIDE (__bss_start = .);} |
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${RELOCATING+PROVIDE (___bss_start = .);} |
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*(.dynbss) |
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*(.bss) |
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*(COMMON) |
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} |
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${RELOCATING+_end = . ;} |
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${RELOCATING+PROVIDE (end = .);} |
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${RELOCATING+PROVIDE (__end = .);} |
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/* These are needed for ELF backends which have not yet been |
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converted to the new style linker. */ |
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.stab 0 : { *(.stab) } |
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.stabstr 0 : { *(.stabstr) } |
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/* DWARF debug sections. |
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Symbols in the DWARF debugging sections are relative to the beginning |
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of the section so we begin them at 0. */ |
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/* DWARF 1 */ |
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.debug 0 : { *(.debug) } |
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.line 0 : { *(.line) } |
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/* GNU DWARF 1 extensions */ |
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.debug_srcinfo 0 : { *(.debug_srcinfo) } |
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.debug_sfnames 0 : { *(.debug_sfnames) } |
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/* DWARF 1.1 and DWARF 2 */ |
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.debug_aranges 0 : { *(.debug_aranges) } |
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.debug_pubnames 0 : { *(.debug_pubnames) } |
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/* DWARF 2 */ |
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.debug_info 0 : { *(.debug_info) } |
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.debug_abbrev 0 : { *(.debug_abbrev) } |
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.debug_line 0 : { *(.debug_line) } |
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.debug_frame 0 : { *(.debug_frame) } |
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.debug_str 0 : { *(.debug_str) } |
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.debug_loc 0 : { *(.debug_loc) } |
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.debug_macinfo 0 : { *(.debug_macinfo) } |
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/* SGI/MIPS DWARF 2 extensions */ |
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.debug_weaknames 0 : { *(.debug_weaknames) } |
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.debug_funcnames 0 : { *(.debug_funcnames) } |
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.debug_typenames 0 : { *(.debug_typenames) } |
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.debug_varnames 0 : { *(.debug_varnames) } |
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/* These must appear regardless of ${RELOCATING}. */ |
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${OTHER_SECTIONS} |
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} |
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EOF |
Geoffrey Keating
26 years ago