diff options
| -rw-r--r-- | ld/ChangeLog | 7 | ||||
| -rw-r--r-- | ld/scripttempl/elfarm.sc | 267 |
2 files changed, 274 insertions, 0 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 086b76c..d11fcb9 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,4 +1,11 @@ start-sanitize-armelf +Sat Aug 1 11:47:37 1998 Catherine Moore <clm@cygnus.com> + + * scripttempl/elfarm.sc: New file. + * emulparams/armelf.sh: Set SCRIPT_NAME to elfarm. + +end-sanitize-armelf +start-sanitize-armelf Fri Jul 31 15:56:16 1998 Catherine Moore <clm@cygnus.com> * emulparams/armelf.sh: New file. diff --git a/ld/scripttempl/elfarm.sc b/ld/scripttempl/elfarm.sc new file mode 100644 index 0000000..9e97ad1 --- /dev/null +++ b/ld/scripttempl/elfarm.sc @@ -0,0 +1,267 @@ +/* start-sanitize-armelf */ +# +# 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 +# INITIAL_READONLY_SECTIONS - at start of text segment +# OTHER_READONLY_SECTIONS - other than .text .init .rodata ... +# (e.g., .PARISC.milli) +# OTHER_TEXT_SECTIONS - these get put in .text when relocating +# 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_GOT_SYMBOLS - symbols defined just before .got. +# OTHER_GOT_SECTIONS - sections just after .got and .sdata. +# 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. +# TEXT_DYNAMIC - .dynamic in text segment, not data segment. +# EMBEDDED - whether this is for an embedded system. +# SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set +# start address of shared library. +# INPUT_FILES - INPUT command of files to always include +# +# 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}:${MACHINE}; fi +test -z "${ELFSIZE}" && ELFSIZE=32 +test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8" +test "$LD_FLAG" = "N" && DATA_ADDR=. +INTERP=".interp ${RELOCATING-0} : { *(.interp) }" +PLT=".plt ${RELOCATING-0} : { *(.plt) }" +DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }" + +# if this is for an embedded system, don't add SIZEOF_HEADERS. +if [ -z "$EMBEDDED" ]; then + test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS" +else + test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_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}} +${RELOCATING+${INPUT_FILES}} +${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+. = ${TEXT_BASE_ADDRESS};}} + ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}} + ${CREATE_SHLIB-${INTERP}} + ${INITIAL_READONLY_SECTIONS} + ${TEXT_DYNAMIC+${DYNAMIC}} + .hash ${RELOCATING-0} : { *(.hash) } + .dynsym ${RELOCATING-0} : { *(.dynsym) } + .dynstr ${RELOCATING-0} : { *(.dynstr) } + .gnu.version ${RELOCATING-0} : { *(.gnu.version) } + .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } + .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } + .rel.text ${RELOCATING-0} : + { + *(.rel.text) + ${RELOCATING+*(.rel.text.*)} + ${RELOCATING+*(.rel.gnu.linkonce.t*)} + } + .rela.text ${RELOCATING-0} : + { + *(.rela.text) + ${RELOCATING+*(.rela.text.*)} + ${RELOCATING+*(.rela.gnu.linkonce.t*)} + } + .rel.data ${RELOCATING-0} : + { + *(.rel.data) + ${RELOCATING+*(.rel.data.*)} + ${RELOCATING+*(.rel.gnu.linkonce.d*)} + } + .rela.data ${RELOCATING-0} : + { + *(.rela.data) + ${RELOCATING+*(.rela.data.*)} + ${RELOCATING+*(.rela.gnu.linkonce.d*)} + } + .rel.rodata ${RELOCATING-0} : + { + *(.rel.rodata) + ${RELOCATING+*(.rel.rodata.*)} + ${RELOCATING+*(.rel.gnu.linkonce.r*)} + } + .rela.rodata ${RELOCATING-0} : + { + *(.rela.rodata) + ${RELOCATING+*(.rela.rodata.*)} + ${RELOCATING+*(.rela.gnu.linkonce.r*)} + } + .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) } + .init ${RELOCATING-0} : { KEEP (*(.init)) } =${NOP-0} + ${DATA_PLT-${PLT}} + .text ${RELOCATING-0} : + { + ${RELOCATING+${TEXT_START_SYMBOLS}} + *(.text) + ${RELOCATING+*(.text.*)} + *(.stub) + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + ${RELOCATING+*(.gnu.linkonce.t*)} + ${RELOCATING+${OTHER_TEXT_SECTIONS}} + } =${NOP-0} + ${RELOCATING+_etext = .;} + ${RELOCATING+PROVIDE (etext = .);} + .fini ${RELOCATING-0} : { KEEP (*(.fini)) } =${NOP-0} + .rodata ${RELOCATING-0} : + { + *(.rodata) + ${RELOCATING+*(.rodata.*)} + ${RELOCATING+*(.gnu.linkonce.r*)} + } + .rodata1 ${RELOCATING-0} : { *(.rodata1) } + ${RELOCATING+${OTHER_READONLY_SECTIONS}} + + /* Adjust the address for the data segment. We want to adjust up to + the same address within the page on the next page up. */ + ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} + ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} + + .data ${RELOCATING-0} : + { + ${RELOCATING+${DATA_START_SYMBOLS}} + *(.data) + ${RELOCATING+*(.data.*)} + ${RELOCATING+*(.gnu.linkonce.d*)} + ${CONSTRUCTING+CONSTRUCTORS} + } + .data1 ${RELOCATING-0} : { *(.data1) } + ${RELOCATING+${OTHER_READWRITE_SECTIONS}} + .ctors ${RELOCATING-0} : + { + ${CONSTRUCTING+${CTOR_START}} + /* gcc uses crtbegin.o to find the start of the constructors, so + we make sure it is first. Because this is a wildcard, it + doesn't matter if the user does not actually link against + crtbegin.o; the linker won't look for a file to match a + wildcard. The wildcard also means that it doesn't matter which + directory crtbegin.o is in. */ + KEEP (*crtbegin.o(.ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + ${CONSTRUCTING+${CTOR_END}} + } + .dtors ${RELOCATING-0} : + { + ${CONSTRUCTING+${DTOR_START}} + KEEP (*crtbegin.o(.dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + ${CONSTRUCTING+${DTOR_END}} + } + ${DATA_PLT+${PLT}} + ${RELOCATING+${OTHER_GOT_SYMBOLS}} + .got ${RELOCATING-0} : { *(.got.plt) *(.got) } + ${TEXT_DYNAMIC-${DYNAMIC}} + /* 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) } + ${RELOCATING+${OTHER_GOT_SECTIONS}} + ${RELOCATING+_edata = .;} + ${RELOCATING+PROVIDE (edata = .);} + ${RELOCATING+__bss_start = .;} + ${RELOCATING+__bss_start__ = .;} + ${RELOCATING+${OTHER_BSS_SYMBOLS}} + .sbss ${RELOCATING-0} : { *(.sbss) *(.scommon) } + .bss ${RELOCATING-0} : + { + *(.dynbss) + *(.bss) + *(COMMON) + } + ${RELOCATING+. = ALIGN(${ALIGNMENT});} + ${RELOCATING+_end = . ;} + ${RELOCATING+_bss_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} +} +EOF +/* end-sanitize-armelf */ |