diff options
Diffstat (limited to 'contrib/binutils/ld/scripttempl/elfppc.sc')
| -rw-r--r-- | contrib/binutils/ld/scripttempl/elfppc.sc | 288 |
1 files changed, 288 insertions, 0 deletions
diff --git a/contrib/binutils/ld/scripttempl/elfppc.sc b/contrib/binutils/ld/scripttempl/elfppc.sc new file mode 100644 index 0000000..ddab8f8 --- /dev/null +++ b/contrib/binutils/ld/scripttempl/elfppc.sc @@ -0,0 +1,288 @@ +# +# 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. +# +# 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=${OUTPUT_FORMAT} +test "$LD_FLAG" = "N" && DATA_ADDR=. +SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) }" +SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) }" +INTERP=".interp ${RELOCATING-0} : { *(.interp) }" +PLT=".plt ${RELOCATING-0} : { *(.plt) }" +CTOR=".ctors ${CONSTRUCTING-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)) + + /* We don't want to include the .ctor section from + from the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + + KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + ${CONSTRUCTING+${CTOR_END}} + }" + +DTOR=" .dtors ${CONSTRUCTING-0} : + { + ${CONSTRUCTING+${DTOR_START}} + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + ${CONSTRUCTING+${DTOR_END}} + }" + +cat <<EOF +OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", + "${LITTLE_OUTPUT_FORMAT}") +OUTPUT_ARCH(${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}} +${RELOCATING- /* For some reason, the Solaris linker makes bad executables + if gld -r is used and the intermediate file has sections starting + at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld + bug. But for now assigning the zero vmas works. */} + +${RELOCATING+PROVIDE (__stack = 0);} +${RELOCATING+PROVIDE (___stack = 0);} +SECTIONS +{ + /* Read-only sections, merged into text segment: */ + ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;}} + ${CREATE_SHLIB+${RELOCATING+. = SIZEOF_HEADERS;}} + ${CREATE_SHLIB-${INTERP}} + .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) } + .rela.text ${RELOCATING-0} : + { + *(.rela.text) + ${RELOCATING+*(.rela.text.*)} + ${RELOCATING+*(.rela.gnu.linkonce.t*)} + } + .rela.data ${RELOCATING-0} : + { + *(.rela.data) + ${RELOCATING+*(.rela.data.*)} + ${RELOCATING+*(.rela.gnu.linkonce.d*)} + } + .rela.rodata ${RELOCATING-0} : + { + *(.rela.rodata) + ${RELOCATING+*(.rela.rodata.*)} + ${RELOCATING+*(.rela.gnu.linkonce.r*)} + } + .rela.got ${RELOCATING-0} : { *(.rela.got) } + .rela.got1 ${RELOCATING-0} : { *(.rela.got1) } + .rela.got2 ${RELOCATING-0} : { *(.rela.got2) } + .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } + .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } + .rela.init ${RELOCATING-0} : { *(.rela.init) } + .rela.fini ${RELOCATING-0} : { *(.rela.fini) } + .rela.bss ${RELOCATING-0} : { *(.rela.bss) } + .rela.plt ${RELOCATING-0} : { *(.rela.plt) } + .rela.sdata ${RELOCATING-0} : { *(.rela.sdata) } + .rela.sbss ${RELOCATING-0} : { *(.rela.sbss) } + .rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2) } + .rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2) } + .text ${RELOCATING-0} : + { + ${RELOCATING+${TEXT_START_SYMBOLS}} + *(.text) + ${RELOCATING+*(.text.*)} + /* .gnu.warning sections are handled specially by elf32.em. */ + *(.gnu.warning) + ${RELOCATING+*(.gnu.linkonce.t*)} + } =${NOP-0} + .init ${RELOCATING-0} : { KEEP (*(.init)) } =${NOP-0} + .fini ${RELOCATING-0} : { KEEP (*(.fini)) } =${NOP-0} + .rodata ${RELOCATING-0} : + { + *(.rodata) + ${RELOCATING+*(.rodata.*)} + ${RELOCATING+*(.gnu.linkonce.r*)} + } + .rodata1 ${RELOCATING-0} : { *(.rodata1) } + ${RELOCATING+_etext = .;} + ${RELOCATING+PROVIDE (etext = .);} + ${RELOCATING+PROVIDE (__etext = .);} + ${CREATE_SHLIB-${SDATA2}} + ${CREATE_SHLIB-${SBSS2}} + ${RELOCATING+${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. It would + be more correct to do this: + ${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (ALIGN(8) & (${MAXPAGESIZE} - 1))};} + The current expression does not correctly handle the case of a + text segment ending precisely at the end of a page; it causes the + data segment to skip a page. The above expression does not have + this problem, but it will currently (2/95) cause BFD to allocate + a single segment, combining both text and data, for this case. + This will prevent the text segment from being shared among + multiple executions of the program; I think that is more + important than losing a page of the virtual address space (note + that no actual memory is lost; the page which is skipped can not + be referenced). */ + ${RELOCATING+. = ${DATA_ADDR- ALIGN(8) + ${MAXPAGESIZE}};} + + .data ${RELOCATING-0} : + { + ${RELOCATING+${DATA_START_SYMBOLS}} + *(.data) + ${RELOCATING+*(.data.*)} + ${RELOCATING+*(.gnu.linkonce.d*)} + ${CONSTRUCTING+CONSTRUCTORS} + } + .data1 ${RELOCATING-0} : { *(.data1) } + ${RELOCATING+${OTHER_READWRITE_SECTIONS}} + + .got1 ${RELOCATING-0} : { *(.got1) } + .dynamic ${RELOCATING-0} : { *(.dynamic) } + + /* Put .ctors and .dtors next to the .got2 section, so that the pointers + get relocated with -mrelocatable. Also put in the .fixup pointers. + The current compiler no longer needs this, but keep it around for 2.7.2 */ + + ${RELOCATING+PROVIDE (_GOT2_START_ = .);} + ${RELOCATING+PROVIDE (__GOT2_START_ = .);} + .got2 ${RELOCATING-0} : { *(.got2) } + + ${RELOCATING+PROVIDE (__CTOR_LIST__ = .);} + ${RELOCATING+PROVIDE (___CTOR_LIST__ = .);} + ${RELOCATING+${CTOR}} + ${RELOCATING+PROVIDE (__CTOR_END__ = .);} + ${RELOCATING+PROVIDE (___CTOR_END__ = .);} + + ${RELOCATING+PROVIDE (__DTOR_LIST__ = .);} + ${RELOCATING+PROVIDE (___DTOR_LIST__ = .);} + ${RELOCATING+${DTOR}} + ${RELOCATING+PROVIDE (__DTOR_END__ = .);} + ${RELOCATING+PROVIDE (___DTOR_END__ = .);} + + ${RELOCATING+PROVIDE (_FIXUP_START_ = .);} + ${RELOCATING+PROVIDE (__FIXUP_START_ = .);} + .fixup ${RELOCATING-0} : { *(.fixup) } + ${RELOCATING+PROVIDE (_FIXUP_END_ = .);} + ${RELOCATING+PROVIDE (__FIXUP_END_ = .);} + ${RELOCATING+PROVIDE (_GOT2_END_ = .);} + ${RELOCATING+PROVIDE (__GOT2_END_ = .);} + + ${RELOCATING+PROVIDE (_GOT_START_ = .);} + ${RELOCATING+PROVIDE (__GOT_START_ = .);} + .got ${RELOCATING-0} : { *(.got) } + .got.plt ${RELOCATING-0} : { *(.got.plt) } + ${CREATE_SHLIB+${SDATA2}} + ${CREATE_SHLIB+${SBSS2}} + ${RELOCATING+PROVIDE (_GOT_END_ = .);} + ${RELOCATING+PROVIDE (__GOT_END_ = .);} + + /* 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+PROVIDE (__edata = .);} + .sbss ${RELOCATING-0} : + { + ${RELOCATING+PROVIDE (__sbss_start = .);} + ${RELOCATING+PROVIDE (___sbss_start = .);} + *(.sbss) + *(.scommon) + *(.dynsbss) + ${RELOCATING+PROVIDE (__sbss_end = .);} + ${RELOCATING+PROVIDE (___sbss_end = .);} + } + ${PLT} + .bss ${RELOCATING-0} : + { + ${RELOCATING+${OTHER_BSS_SYMBOLS}} + ${RELOCATING+PROVIDE (__bss_start = .);} + ${RELOCATING+PROVIDE (___bss_start = .);} + *(.dynbss) + *(.bss) + *(COMMON) + } + ${RELOCATING+_end = . ;} + ${RELOCATING+PROVIDE (end = .);} + ${RELOCATING+PROVIDE (__end = .);} + + /* These are needed for ELF backends which have not yet been + converted to the new style linker. */ + .stab 0 : { *(.stab) } + .stabstr 0 : { *(.stabstr) } + + /* 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) } + + /* These must appear regardless of ${RELOCATING}. */ + ${OTHER_SECTIONS} +} +EOF |
