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Diffstat (limited to 'ld/scripttempl/xstormy16.sc')
| -rw-r--r-- | ld/scripttempl/xstormy16.sc | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/ld/scripttempl/xstormy16.sc b/ld/scripttempl/xstormy16.sc new file mode 100644 index 0000000..3f73598 --- /dev/null +++ b/ld/scripttempl/xstormy16.sc @@ -0,0 +1,226 @@ +# Copyright (C) 2014 Free Software Foundation, Inc. +# +# Copying and distribution of this file, with or without modification, +# are permitted in any medium without royalty provided the copyright +# notice and this notice are preserved. +# +# Unusual variables checked by this code: +# NOP - two byte opcode for no-op (defaults to 0) +# 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. +# INPUT_FILES - INPUT command of files to always include +# INIT_START, INIT_END - statements just before and just after +# combination of .init sections. +# FINI_START, FINI_END - statements just before and just after +# combination of .fini sections. +# +# When adding sections, do note that the names of some sections are used +# when specifying the start address of the next. +# + +# Many sections come in three flavours. There is the 'real' section, +# like ".data". Then there are the per-procedure or per-variable +# sections, generated by -ffunction-sections and -fdata-sections in GCC, +# and useful for --gc-sections, which for a variable "foo" might be +# ".data.foo". Then there are the linkonce sections, for which the linker +# eliminates duplicates, which are named like ".gnu.linkonce.d.foo". +# The exact correspondences are: +# +# Section Linkonce section +# .text .gnu.linkonce.t.foo +# .rodata .gnu.linkonce.r.foo +# .data .gnu.linkonce.d.foo +# .bss .gnu.linkonce.b.foo +# .sdata .gnu.linkonce.s.foo +# .sbss .gnu.linkonce.sb.foo +# .sdata2 .gnu.linkonce.s2.foo +# .sbss2 .gnu.linkonce.sb2.foo +# +# Each of these can also have corresponding .rel.* and .rela.* sections. + +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" +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)) + KEEP (*crtbegin?.o(.ctors)) + + /* We don't want to include the .ctor section 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 *crtend?.o $OTHER_EXCLUDE_FILES) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + ${CONSTRUCTING+${CTOR_END}} + } > ROM" + +DTOR=" .dtors ${CONSTRUCTING-0} : + { + ${CONSTRUCTING+${DTOR_START}} + KEEP (*crtbegin.o(.dtors)) + KEEP (*crtbegin?.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + ${CONSTRUCTING+${DTOR_END}} + } > ROM" + +cat <<EOF +/* Copyright (C) 2014 Free Software Foundation, Inc. + + Copying and distribution of this script, with or without modification, + are permitted in any medium without royalty provided the copyright + notice and this notice are preserved. */ + +OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", + "${LITTLE_OUTPUT_FORMAT}") +OUTPUT_ARCH(${OUTPUT_ARCH}) +${RELOCATING+ENTRY(${ENTRY})} + +${RELOCATING+${LIB_SEARCH_DIRS}} +${RELOCATING+${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. */} + +/* There are two memory regions we care about, one from 0 through 0x7F00 + that is RAM and one from 0x8000 up which is ROM. */ +MEMORY +{ + RAM (w) : ORIGIN = 0, LENGTH = 0x7F00 + ROM (!w) : ORIGIN = 0x8000, LENGTH = 0xFF8000 +} + +SECTIONS +{ + .data ${RELOCATING-0} : + { + ${RELOCATING+__rdata = .;} + ${RELOCATING+__data = .;} + ${RELOCATING+${DATA_START_SYMBOLS}} + *(.data) + ${RELOCATING+*(.data.*)} + ${RELOCATING+*(.gnu.linkonce.d.*)} + ${CONSTRUCTING+SORT(CONSTRUCTORS)} + } > RAM + ${RELOCATING+${OTHER_READWRITE_SECTIONS}} + ${RELOCATING+${OTHER_GOT_SYMBOLS}} + ${RELOCATING+${OTHER_GOT_SECTIONS}} + ${RELOCATING+_edata = .;} + ${RELOCATING+PROVIDE (edata = .);} + ${RELOCATING+__bss_start = .;} + ${RELOCATING+${OTHER_BSS_SYMBOLS}} + .bss ${RELOCATING-0} : + { + *(.dynbss) + *(.bss) + ${RELOCATING+*(.bss.*)} + ${RELOCATING+*(.gnu.linkonce.b.*)} + *(COMMON) + /* Align here to ensure that the .bss section occupies space up to + _end. Align after .bss to ensure correct alignment even if the + .bss section disappears because there are no input sections. */ + ${RELOCATING+. = ALIGN(${ALIGNMENT});} + } > RAM + ${RELOCATING+${OTHER_BSS_END_SYMBOLS}} + ${RELOCATING+. = ALIGN(${ALIGNMENT});} + ${RELOCATING+${OTHER_END_SYMBOLS}} + ${RELOCATING+_end = .;} + ${RELOCATING+__stack = .;} + ${RELOCATING+PROVIDE (end = .);} + + /* Read-only sections in ROM. */ + .int_vec ${RELOCATING-0} : { *(.int_vec) } ${RELOCATING+> ROM} + + .rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r.*)} } ${RELOCATING+> ROM} + ${RELOCATING+${CTOR}} + ${RELOCATING+${DTOR}} + .jcr : { KEEP (*(.jcr)) } ${RELOCATING+> ROM} + .eh_frame : { KEEP (*(.eh_frame)) } ${RELOCATING+> ROM} + .gcc_except_table : { *(.gcc_except_table) *(.gcc_except_table.*) } ${RELOCATING+> ROM} + .plt : { *(.plt) } ${RELOCATING+> ROM} + + .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}} + } ${RELOCATING+> ROM =${NOP-0}} + .init ${RELOCATING-0} : + { + ${RELOCATING+${INIT_START}} + KEEP (*(.init)) + ${RELOCATING+${INIT_END}} + } ${RELOCATING+> ROM =${NOP-0}} + .fini ${RELOCATING-0} : + { + ${RELOCATING+${FINI_START}} + KEEP (*(.fini)) + ${RELOCATING+${FINI_END}} + } ${RELOCATING+> ROM =${NOP-0}} + ${RELOCATING+PROVIDE (__etext = .);} + ${RELOCATING+PROVIDE (_etext = .);} + ${RELOCATING+PROVIDE (etext = .);} + ${RELOCATING+${OTHER_READONLY_SECTIONS}} + + + /* 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) } + +EOF + +. $srcdir/scripttempl/DWARF.sc + +cat <<EOF + ${RELOCATING+${OTHER_RELOCATING_SECTIONS}} + + /* These must appear regardless of ${RELOCATING}. */ + ${OTHER_SECTIONS} +} +EOF |