# # Unusual variables checked by this code: # NOP - two byte opcode for no-op (defaults to 0) # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start # OTHER_READONLY_SECTIONS - other than .text .init .rodata ... # (e.g., .PARISC.milli) # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... # (e.g., .PARISC.global) # OTHER_SECTIONS - at the end # EXECUTABLE_SYMBOLS - symbols that must be defined for an # executable (e.g., _DYNAMIC_LINK) # TEXT_START_SYMBOLS - symbols that appear at the start of the # .text section. # DATA_START_SYMBOLS - symbols that appear at the start of the # .data section. # OTHER_BSS_SYMBOLS - symbols that appear at the start of the # .bss section besides __bss_start. # DATA_PLT - .plt should be in data segment, not text segment. # EMBEDDED - whether this is for an embedded system. # # When adding sections, do note that the names of some sections are used # when specifying the start address of the next. # test -z "$ENTRY" && ENTRY=_start test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi test "$LD_FLAG" = "N" && DATA_ADDR=. INTERP=".interp ${RELOCATING-0} : { *(.interp) }" PLT=".plt ${RELOCATING-0} : { *(.plt) }" # if this is for an embedded system, don't add SIZEOF_HEADERS. if [ -z "$EMBEDDED" ]; then test -z "${READONLY_BASE_ADDRESS}" && READONLY_BASE_ADDRESS="${READONLY_START_ADDR} + SIZEOF_HEADERS" else test -z "${READONLY_BASE_ADDRESS}" && READONLY_BASE_ADDRESS="${READONLY_START_ADDR}" fi cat <<EOF OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", "${LITTLE_OUTPUT_FORMAT}") OUTPUT_ARCH(${OUTPUT_ARCH}) ENTRY(${ENTRY}) ${RELOCATING+${LIB_SEARCH_DIRS}} ${RELOCATING+/* Do we need any of these for elf? __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */} ${RELOCATING+${EXECUTABLE_SYMBOLS}} ${RELOCATING- /* For some reason, the Solaris linker makes bad executables if gld -r is used and the intermediate file has sections starting at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld bug. But for now assigning the zero vmas works. */} SECTIONS { /* Read-only sections, merged into text segment: */ ${CREATE_SHLIB-${RELOCATING+. = ${READONLY_BASE_ADDRESS};}} ${CREATE_SHLIB+${RELOCATING+. = SIZEOF_HEADERS;}} ${CREATE_SHLIB-${INTERP}} .hash ${RELOCATING-0} : { *(.hash) } .dynsym ${RELOCATING-0} : { *(.dynsym) } .dynstr ${RELOCATING-0} : { *(.dynstr) } .rel.text ${RELOCATING-0} : { *(.rel.text) } .rela.text ${RELOCATING-0} : { *(.rela.text) } .rel.data ${RELOCATING-0} : { *(.rel.data) } .rela.data ${RELOCATING-0} : { *(.rela.data) } .rel.rodata ${RELOCATING-0} : { *(.rel.rodata) } .rela.rodata ${RELOCATING-0} : { *(.rela.rodata) } .rel.got ${RELOCATING-0} : { *(.rel.got) } .rela.got ${RELOCATING-0} : { *(.rela.got) } .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) } .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) } .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } .rel.init ${RELOCATING-0} : { *(.rel.init) } .rela.init ${RELOCATING-0} : { *(.rela.init) } .rel.fini ${RELOCATING-0} : { *(.rel.fini) } .rela.fini ${RELOCATING-0} : { *(.rela.fini) } .rel.bss ${RELOCATING-0} : { *(.rel.bss) } .rela.bss ${RELOCATING-0} : { *(.rela.bss) } .rel.plt ${RELOCATING-0} : { *(.rel.plt) } .rela.plt ${RELOCATING-0} : { *(.rela.plt) } ${DATA_PLT-${PLT}} .rodata ${RELOCATING-0} : { *(.rodata) *(.gnu.linkonce.r*) } .rodata1 ${RELOCATING-0} : { *(.rodata1) } ${RELOCATING+${OTHER_READONLY_SECTIONS}} /* Adjust the address for the data segment. */ ${RELOCATING+. = ${DATA_ADDR-ALIGN(4);}} .data ${RELOCATING-0} : { ${RELOCATING+${DATA_START_SYMBOLS}} *(.data) *(.gnu.linkonce.d*) ${CONSTRUCTING+CONSTRUCTORS} } .data1 ${RELOCATING-0} : { *(.data1) } ${RELOCATING+${OTHER_READWRITE_SECTIONS}} .ctors ${RELOCATING-0} : { ${CONSTRUCTING+${CTOR_START}} *(SORT(.ctors.*)) *(.ctors) ${CONSTRUCTING+${CTOR_END}} } .dtors ${RELOCATING-0} : { ${CONSTRUCTING+${DTOR_START}} *(SORT(.dtors.*)) *(.dtors) ${CONSTRUCTING+${DTOR_END}} } .got ${RELOCATING-0} : { *(.got.plt) *(.got) } .dynamic ${RELOCATING-0} : { *(.dynamic) } ${DATA_PLT+${PLT}} /* We want the small data sections together, so single-instruction offsets can access them all, and initialized data all before uninitialized, so we can shorten the on-disk segment size. */ .sdata ${RELOCATING-0} : { *(.sdata) } ${RELOCATING+_edata = .;} ${RELOCATING+PROVIDE (edata = .);} ${RELOCATING+__bss_start = .;} ${RELOCATING+${OTHER_BSS_SYMBOLS}} .sbss ${RELOCATING-0} : { *(.sbss) *(.scommon) } .bss ${RELOCATING-0} : { *(.dynbss) *(.bss) *(COMMON) } ${RELOCATING+_end = . ;} ${RELOCATING+PROVIDE (end = .);} /* Stabs debugging sections. */ .stab 0 : { *(.stab) } .stabstr 0 : { *(.stabstr) } .stab.excl 0 : { *(.stab.excl) } .stab.exclstr 0 : { *(.stab.exclstr) } .stab.index 0 : { *(.stab.index) } .stab.indexstr 0 : { *(.stab.indexstr) } .comment 0 : { *(.comment) } /* DWARF debug sections. Symbols in the DWARF debugging sections are relative to the beginning of the section so we begin them at 0. */ /* DWARF 1 */ .debug 0 : { *(.debug) } .line 0 : { *(.line) } /* GNU DWARF 1 extensions */ .debug_srcinfo 0 : { *(.debug_srcinfo) } .debug_sfnames 0 : { *(.debug_sfnames) } /* DWARF 1.1 and DWARF 2 */ .debug_aranges 0 : { *(.debug_aranges) } .debug_pubnames 0 : { *(.debug_pubnames) } /* DWARF 2 */ .debug_info 0 : { *(.debug_info) } .debug_abbrev 0 : { *(.debug_abbrev) } .debug_line 0 : { *(.debug_line) } .debug_frame 0 : { *(.debug_frame) } .debug_str 0 : { *(.debug_str) } .debug_loc 0 : { *(.debug_loc) } .debug_macinfo 0 : { *(.debug_macinfo) } /* SGI/MIPS DWARF 2 extensions */ .debug_weaknames 0 : { *(.debug_weaknames) } .debug_funcnames 0 : { *(.debug_funcnames) } .debug_typenames 0 : { *(.debug_typenames) } .debug_varnames 0 : { *(.debug_varnames) } ${RELOCATING+${OTHER_RELOCATING_SECTIONS}} /* These must appear regardless of ${RELOCATING}. */ ${OTHER_SECTIONS} /* Hmmm, there's got to be a better way. This sets the stack to the top of the simulator memory (i.e. top of 64K data space). */ .stack 0x00007FFE : { _stack = .; *(.stack) } .text ${RELOCATING+${TEXT_START_ADDR}} : { ${RELOCATING+${TEXT_START_SYMBOLS}} *(.init) *(.fini) *(.text) /* .gnu.warning sections are handled specially by elf32.em. */ *(.gnu.warning) *(.gnu.linkonce.t*) } =${NOP-0} ${RELOCATING+_etext = .;} ${RELOCATING+PROVIDE (etext = .);} } EOF