669 lines
27 KiB
Python
669 lines
27 KiB
Python
# Copyright (C) 2014 Free Software Foundation, Inc.
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#
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# Copying and distribution of this file, with or without modification,
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# are permitted in any medium without royalty provided the copyright
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# notice and this notice are preserved.
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#
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# Unusual variables checked by this code:
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# NOP - four byte opcode for no-op (defaults to none)
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# NO_SMALL_DATA - no .sbss/.sbss2/.sdata/.sdata2 sections if not
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# empty.
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# SMALL_DATA_CTOR - .ctors contains small data.
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# SMALL_DATA_DTOR - .dtors contains small data.
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# DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
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# INITIAL_READONLY_SECTIONS - at start of text segment
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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_TEXT_SECTIONS - these get put in .text when relocating
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# INITIAL_READWRITE_SECTIONS - at start of data segment (after relro)
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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_RELRO_SECTIONS - other than .data.rel.ro ...
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# (e.g. PPC32 .fixup, .got[12])
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# OTHER_BSS_SECTIONS - other than .bss .sbss ...
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# ATTRS_SECTIONS - at the end
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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_ADDR - the first byte of the text segment, after any
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# headers.
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# TEXT_BASE_ADDRESS - the first byte of the text segment.
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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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# DATA_END_SYMBOLS - symbols that appear at the end of the
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# writeable data sections.
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# OTHER_GOT_SYMBOLS - symbols defined just before .got.
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# OTHER_GOT_SECTIONS - sections just after .got.
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# OTHER_SDATA_SECTIONS - sections just after .sdata.
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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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# PLT_NEXT_DATA - .plt next to data segment when .plt is in text segment.
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# DATA_PLT - .plt should be in data segment, not text segment.
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# PLT_BEFORE_GOT - .plt just before .got when .plt is in data segement.
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# BSS_PLT - .plt should be in bss segment
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# NO_REL_RELOCS - Don't include .rel.* sections in script
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# NO_RELA_RELOCS - Don't include .rela.* sections in script
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# NON_ALLOC_DYN - Place dynamic sections after data segment.
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# TEXT_DYNAMIC - .dynamic in text segment, not data segment.
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# EMBEDDED - whether this is for an embedded system.
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# SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
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# start address of shared library.
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# INPUT_FILES - INPUT command of files to always include
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# WRITABLE_RODATA - if set, the .rodata section should be writable
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# INIT_START, INIT_END - statements just before and just after
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# combination of .init sections.
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# FINI_START, FINI_END - statements just before and just after
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# combination of .fini sections.
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# STACK_ADDR - start of a .stack section.
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# OTHER_SYMBOLS - symbols to place right at the end of the script.
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# ETEXT_NAME - name of a symbol for the end of the text section,
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# normally etext.
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# SEPARATE_CODE - if set, .text and similar sections containing
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# actual machine instructions must be in wholly disjoint
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# pages from any other data, including headers
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# SEPARATE_GOTPLT - if set, .got.plt should be separate output section,
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# so that .got can be in the RELRO area. It should be set to
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# the number of bytes in the beginning of .got.plt which can be
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# in the RELRO area as well.
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# USER_LABEL_PREFIX - prefix to add to user-visible symbols.
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# RODATA_NAME, SDATA_NAME, SBSS_NAME, BSS_NAME - base parts of names
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# for standard sections, without initial "." or suffixes.
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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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# Many sections come in three flavours. There is the 'real' section,
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# like ".data". Then there are the per-procedure or per-variable
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# sections, generated by -ffunction-sections and -fdata-sections in GCC,
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# and useful for --gc-sections, which for a variable "foo" might be
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# ".data.foo". Then there are the linkonce sections, for which the linker
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# eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
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# The exact correspondences are:
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#
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# Section Linkonce section
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# .text .gnu.linkonce.t.foo
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# .rodata .gnu.linkonce.r.foo
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# .data .gnu.linkonce.d.foo
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# .bss .gnu.linkonce.b.foo
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# .sdata .gnu.linkonce.s.foo
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# .sbss .gnu.linkonce.sb.foo
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# .sdata2 .gnu.linkonce.s2.foo
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# .sbss2 .gnu.linkonce.sb2.foo
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# .debug_info .gnu.linkonce.wi.foo
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# .tdata .gnu.linkonce.td.foo
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# .tbss .gnu.linkonce.tb.foo
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# .lrodata .gnu.linkonce.lr.foo
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# .ldata .gnu.linkonce.l.foo
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# .lbss .gnu.linkonce.lb.foo
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#
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# Each of these can also have corresponding .rel.* and .rela.* sections.
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if test -n "$NOP"; then
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FILL="=$NOP"
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else
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FILL=
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fi
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test -z "$RODATA_NAME" && RODATA_NAME=rodata
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test -z "$SDATA_NAME" && SDATA_NAME=sdata
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test -z "$SBSS_NAME" && SBSS_NAME=sbss
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test -z "$BSS_NAME" && BSS_NAME=bss
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test -z "$ENTRY" && ENTRY=${USER_LABEL_PREFIX}_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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if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
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test -z "${ELFSIZE}" && ELFSIZE=32
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test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
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test "$LD_FLAG" = "N" && DATA_ADDR=.
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test -z "${ETEXT_NAME}" && ETEXT_NAME=${USER_LABEL_PREFIX}etext
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test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
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test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
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test -n "$RELRO_NOW" && unset SEPARATE_GOTPLT
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test -z "$ATTRS_SECTIONS" && ATTRS_SECTIONS=".gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }"
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DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
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DATA_SEGMENT_RELRO_END=""
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DATA_SEGMENT_END=""
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if test -n "${COMMONPAGESIZE}"; then
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DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
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DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
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DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (${SEPARATE_GOTPLT-0}, .);"
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fi
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if test -z "${INITIAL_READONLY_SECTIONS}${CREATE_SHLIB}"; then
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INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp) }"
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fi
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if test -z "$PLT"; then
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IPLT=".iplt ${RELOCATING-0} : { *(.iplt) }"
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PLT=".plt ${RELOCATING-0} : { *(.plt)${IREL_IN_PLT+ *(.iplt)} }
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${IREL_IN_PLT-$IPLT}"
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fi
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test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=
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if test -z "$GOT"; then
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if test -z "$SEPARATE_GOTPLT"; then
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GOT=".got ${RELOCATING-0} : { *(.got.plt) *(.igot.plt) *(.got) *(.igot) }"
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else
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GOT=".got ${RELOCATING-0} : { *(.got) *(.igot) }"
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GOTPLT=".got.plt ${RELOCATING-0} : { *(.got.plt) *(.igot.plt) }"
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fi
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fi
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REL_IFUNC=".rel.ifunc ${RELOCATING-0} : { *(.rel.ifunc) }"
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RELA_IFUNC=".rela.ifunc ${RELOCATING-0} : { *(.rela.ifunc) }"
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REL_IPLT=".rel.iplt ${RELOCATING-0} :
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{
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${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_start = .);}}
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*(.rel.iplt)
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${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_end = .);}}
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}"
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RELA_IPLT=".rela.iplt ${RELOCATING-0} :
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{
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${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_start = .);}}
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*(.rela.iplt)
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${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_end = .);}}
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}"
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DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
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RODATA=".${RODATA_NAME} ${RELOCATING-0} : { *(.${RODATA_NAME}${RELOCATING+ .${RODATA_NAME}.* .gnu.linkonce.r.*}) }"
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DATARELRO=".data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }"
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DISCARDED="/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }"
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if test -z "${NO_SMALL_DATA}"; then
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SBSS=".${SBSS_NAME} ${RELOCATING-0} :
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{
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${RELOCATING+${SBSS_START_SYMBOLS}}
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${CREATE_SHLIB+*(.${SBSS_NAME}2 .${SBSS_NAME}2.* .gnu.linkonce.sb2.*)}
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*(.dyn${SBSS_NAME})
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*(.${SBSS_NAME}${RELOCATING+ .${SBSS_NAME}.* .gnu.linkonce.sb.*})
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*(.scommon)
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${RELOCATING+${SBSS_END_SYMBOLS}}
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}"
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SBSS2=".${SBSS_NAME}2 ${RELOCATING-0} : { *(.${SBSS_NAME}2${RELOCATING+ .${SBSS_NAME}2.* .gnu.linkonce.sb2.*}) }"
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SDATA="/* 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_NAME} ${RELOCATING-0} :
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{
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${RELOCATING+${SDATA_START_SYMBOLS}}
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${CREATE_SHLIB+*(.${SDATA_NAME}2 .${SDATA_NAME}2.* .gnu.linkonce.s2.*)}
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*(.${SDATA_NAME}${RELOCATING+ .${SDATA_NAME}.* .gnu.linkonce.s.*})
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}"
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SDATA2=".${SDATA_NAME}2 ${RELOCATING-0} :
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{
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${RELOCATING+${SDATA2_START_SYMBOLS}}
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*(.${SDATA_NAME}2${RELOCATING+ .${SDATA_NAME}2.* .gnu.linkonce.s2.*})
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}"
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REL_SDATA=".rel.${SDATA_NAME} ${RELOCATING-0} : { *(.rel.${SDATA_NAME}${RELOCATING+ .rel.${SDATA_NAME}.* .rel.gnu.linkonce.s.*}) }
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.rela.${SDATA_NAME} ${RELOCATING-0} : { *(.rela.${SDATA_NAME}${RELOCATING+ .rela.${SDATA_NAME}.* .rela.gnu.linkonce.s.*}) }"
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REL_SBSS=".rel.${SBSS_NAME} ${RELOCATING-0} : { *(.rel.${SBSS_NAME}${RELOCATING+ .rel.${SBSS_NAME}.* .rel.gnu.linkonce.sb.*}) }
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.rela.${SBSS_NAME} ${RELOCATING-0} : { *(.rela.${SBSS_NAME}${RELOCATING+ .rela.${SBSS_NAME}.* .rela.gnu.linkonce.sb.*}) }"
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REL_SDATA2=".rel.${SDATA_NAME}2 ${RELOCATING-0} : { *(.rel.${SDATA_NAME}2${RELOCATING+ .rel.${SDATA_NAME}2.* .rel.gnu.linkonce.s2.*}) }
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.rela.${SDATA_NAME}2 ${RELOCATING-0} : { *(.rela.${SDATA_NAME}2${RELOCATING+ .rela.${SDATA_NAME}2.* .rela.gnu.linkonce.s2.*}) }"
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REL_SBSS2=".rel.${SBSS_NAME}2 ${RELOCATING-0} : { *(.rel.${SBSS_NAME}2${RELOCATING+ .rel.${SBSS_NAME}2.* .rel.gnu.linkonce.sb2.*}) }
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.rela.${SBSS_NAME}2 ${RELOCATING-0} : { *(.rela.${SBSS_NAME}2${RELOCATING+ .rela.${SBSS_NAME}2.* .rela.gnu.linkonce.sb2.*}) }"
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else
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NO_SMALL_DATA=" "
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fi
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if test -z "${DATA_GOT}"; then
|
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if test -n "${NO_SMALL_DATA}"; then
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DATA_GOT=" "
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fi
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fi
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if test -z "${SDATA_GOT}"; then
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if test -z "${NO_SMALL_DATA}"; then
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SDATA_GOT=" "
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fi
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fi
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test -n "$SEPARATE_GOTPLT" && SEPARATE_GOTPLT=" "
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test "${LARGE_SECTIONS}" = "yes" && REL_LARGE="
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.rel.ldata ${RELOCATING-0} : { *(.rel.ldata${RELOCATING+ .rel.ldata.* .rel.gnu.linkonce.l.*}) }
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.rela.ldata ${RELOCATING-0} : { *(.rela.ldata${RELOCATING+ .rela.ldata.* .rela.gnu.linkonce.l.*}) }
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.rel.lbss ${RELOCATING-0} : { *(.rel.lbss${RELOCATING+ .rel.lbss.* .rel.gnu.linkonce.lb.*}) }
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.rela.lbss ${RELOCATING-0} : { *(.rela.lbss${RELOCATING+ .rela.lbss.* .rela.gnu.linkonce.lb.*}) }
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.rel.lrodata ${RELOCATING-0} : { *(.rel.lrodata${RELOCATING+ .rel.lrodata.* .rel.gnu.linkonce.lr.*}) }
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.rela.lrodata ${RELOCATING-0} : { *(.rela.lrodata${RELOCATING+ .rela.lrodata.* .rela.gnu.linkonce.lr.*}) }"
|
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test "${LARGE_SECTIONS}" = "yes" && LARGE_BSS="
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.lbss ${RELOCATING-0} :
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{
|
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*(.dynlbss)
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*(.lbss${RELOCATING+ .lbss.* .gnu.linkonce.lb.*})
|
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*(LARGE_COMMON)
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}"
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test "${LARGE_SECTIONS}" = "yes" && LARGE_SECTIONS="
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.lrodata ${RELOCATING-0} ${RELOCATING+ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))} :
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{
|
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*(.lrodata${RELOCATING+ .lrodata.* .gnu.linkonce.lr.*})
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|
}
|
|
.ldata ${RELOCATING-0} ${RELOCATING+ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))} :
|
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{
|
|
*(.ldata${RELOCATING+ .ldata.* .gnu.linkonce.l.*})
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${RELOCATING+. = ALIGN(. != 0 ? ${ALIGNMENT} : 1);}
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}"
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if test "${ENABLE_INITFINI_ARRAY}" = "yes"; then
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SORT_INIT_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))"
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SORT_FINI_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))"
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CTORS_IN_INIT_ARRAY="EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors"
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DTORS_IN_FINI_ARRAY="EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors"
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else
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SORT_INIT_ARRAY="KEEP (*(SORT(.init_array.*)))"
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|
SORT_FINI_ARRAY="KEEP (*(SORT(.fini_array.*)))"
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CTORS_IN_INIT_ARRAY=
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DTORS_IN_FINI_ARRAY=
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fi
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INIT_ARRAY=".init_array ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_start = .);}}
|
|
${SORT_INIT_ARRAY}
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|
KEEP (*(.init_array ${CTORS_IN_INIT_ARRAY}))
|
|
${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_end = .);}}
|
|
}"
|
|
FINI_ARRAY=".fini_array ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_start = .);}}
|
|
${SORT_FINI_ARRAY}
|
|
KEEP (*(.fini_array ${DTORS_IN_FINI_ARRAY}))
|
|
${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_end = .);}}
|
|
}"
|
|
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}}
|
|
}"
|
|
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}}
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|
}"
|
|
STACK=" .stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
|
|
{
|
|
${RELOCATING+${USER_LABEL_PREFIX}_stack = .;}
|
|
*(.stack)
|
|
}"
|
|
|
|
TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${TEXT_START_ADDR})"
|
|
SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${SHLIB_TEXT_START_ADDR:-0})"
|
|
|
|
if [ -z "$SEPARATE_CODE" ]; then
|
|
SIZEOF_HEADERS_CODE=" + SIZEOF_HEADERS"
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|
else
|
|
SIZEOF_HEADERS_CODE=
|
|
fi
|
|
|
|
# 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_CODE}"
|
|
else
|
|
test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
|
|
fi
|
|
|
|
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. */}
|
|
|
|
SECTIONS
|
|
{
|
|
/* Read-only sections, merged into text segment: */
|
|
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}}
|
|
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
|
|
${CREATE_PIE+${RELOCATING+PROVIDE (__executable_start = ${SHLIB_TEXT_START_ADDR}); . = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
|
|
EOF
|
|
|
|
emit_early_ro()
|
|
{
|
|
cat <<EOF
|
|
${INITIAL_READONLY_SECTIONS}
|
|
.note.gnu.build-id : { *(.note.gnu.build-id) }
|
|
EOF
|
|
}
|
|
|
|
test -n "${SEPARATE_CODE}" || emit_early_ro
|
|
|
|
test -n "${RELOCATING+0}" || unset NON_ALLOC_DYN
|
|
test -z "${NON_ALLOC_DYN}" || TEXT_DYNAMIC=
|
|
cat > ldscripts/dyntmp.$$ <<EOF
|
|
${TEXT_DYNAMIC+${DYNAMIC}}
|
|
.hash ${RELOCATING-0} : { *(.hash) }
|
|
.gnu.hash ${RELOCATING-0} : { *(.gnu.hash) }
|
|
.dynsym ${RELOCATING-0} : { *(.dynsym) }
|
|
.dynstr ${RELOCATING-0} : { *(.dynstr) }
|
|
.gnu.version ${RELOCATING-0} : { *(.gnu.version) }
|
|
.gnu.version_d ${RELOCATING-0}: { *(.gnu.version_d) }
|
|
.gnu.version_r ${RELOCATING-0}: { *(.gnu.version_r) }
|
|
EOF
|
|
|
|
if [ "x$COMBRELOC" = x ]; then
|
|
COMBRELOCCAT="cat >> ldscripts/dyntmp.$$"
|
|
else
|
|
COMBRELOCCAT="cat > $COMBRELOC"
|
|
fi
|
|
eval $COMBRELOCCAT <<EOF
|
|
${INITIAL_RELOC_SECTIONS}
|
|
.rel.init ${RELOCATING-0} : { *(.rel.init) }
|
|
.rela.init ${RELOCATING-0} : { *(.rela.init) }
|
|
.rel.text ${RELOCATING-0} : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
|
|
.rela.text ${RELOCATING-0} : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
|
|
.rel.fini ${RELOCATING-0} : { *(.rel.fini) }
|
|
.rela.fini ${RELOCATING-0} : { *(.rela.fini) }
|
|
.rel.${RODATA_NAME} ${RELOCATING-0} : { *(.rel.${RODATA_NAME}${RELOCATING+ .rel.${RODATA_NAME}.* .rel.gnu.linkonce.r.*}) }
|
|
.rela.${RODATA_NAME} ${RELOCATING-0} : { *(.rela.${RODATA_NAME}${RELOCATING+ .rela.${RODATA_NAME}.* .rela.gnu.linkonce.r.*}) }
|
|
${OTHER_READONLY_RELOC_SECTIONS}
|
|
.rel.data.rel.ro ${RELOCATING-0} : { *(.rel.data.rel.ro${RELOCATING+ .rel.data.rel.ro.* .rel.gnu.linkonce.d.rel.ro.*}) }
|
|
.rela.data.rel.ro ${RELOCATING-0} : { *(.rela.data.rel.ro${RELOCATING+ .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*}) }
|
|
.rel.data ${RELOCATING-0} : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
|
|
.rela.data ${RELOCATING-0} : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
|
|
${OTHER_READWRITE_RELOC_SECTIONS}
|
|
.rel.tdata ${RELOCATING-0} : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }
|
|
.rela.tdata ${RELOCATING-0} : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }
|
|
.rel.tbss ${RELOCATING-0} : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }
|
|
.rela.tbss ${RELOCATING-0} : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }
|
|
.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.got ${RELOCATING-0} : { *(.rel.got) }
|
|
.rela.got ${RELOCATING-0} : { *(.rela.got) }
|
|
${OTHER_GOT_RELOC_SECTIONS}
|
|
${REL_SDATA}
|
|
${REL_SBSS}
|
|
${REL_SDATA2}
|
|
${REL_SBSS2}
|
|
.rel.${BSS_NAME} ${RELOCATING-0} : { *(.rel.${BSS_NAME}${RELOCATING+ .rel.${BSS_NAME}.* .rel.gnu.linkonce.b.*}) }
|
|
.rela.${BSS_NAME} ${RELOCATING-0} : { *(.rela.${BSS_NAME}${RELOCATING+ .rela.${BSS_NAME}.* .rela.gnu.linkonce.b.*}) }
|
|
${REL_LARGE}
|
|
${IREL_IN_PLT+$REL_IFUNC}
|
|
${IREL_IN_PLT+$RELA_IFUNC}
|
|
${IREL_IN_PLT-$REL_IPLT}
|
|
${IREL_IN_PLT-$RELA_IPLT}
|
|
EOF
|
|
|
|
if [ -n "$COMBRELOC" ]; then
|
|
cat >> ldscripts/dyntmp.$$ <<EOF
|
|
.rel.dyn ${RELOCATING-0} :
|
|
{
|
|
EOF
|
|
sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;/__rela_iplt_/d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC >> ldscripts/dyntmp.$$
|
|
cat >> ldscripts/dyntmp.$$ <<EOF
|
|
}
|
|
.rela.dyn ${RELOCATING-0} :
|
|
{
|
|
EOF
|
|
sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;/__rel_iplt_/d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC >> ldscripts/dyntmp.$$
|
|
cat >> ldscripts/dyntmp.$$ <<EOF
|
|
}
|
|
EOF
|
|
fi
|
|
|
|
cat >> ldscripts/dyntmp.$$ <<EOF
|
|
.rel.plt ${RELOCATING-0} :
|
|
{
|
|
*(.rel.plt)
|
|
${IREL_IN_PLT+${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_start = .);}}}
|
|
${IREL_IN_PLT+${RELOCATING+*(.rel.iplt)}}
|
|
${IREL_IN_PLT+${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_end = .);}}}
|
|
}
|
|
.rela.plt ${RELOCATING-0} :
|
|
{
|
|
*(.rela.plt)
|
|
${IREL_IN_PLT+${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_start = .);}}}
|
|
${IREL_IN_PLT+${RELOCATING+*(.rela.iplt)}}
|
|
${IREL_IN_PLT+${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_end = .);}}}
|
|
}
|
|
${OTHER_PLT_RELOC_SECTIONS}
|
|
EOF
|
|
|
|
emit_dyn()
|
|
{
|
|
if test -z "${NO_REL_RELOCS}${NO_RELA_RELOCS}"; then
|
|
cat ldscripts/dyntmp.$$
|
|
else
|
|
if test -z "${NO_REL_RELOCS}"; then
|
|
sed -e '/^[ ]*\.rela\.[^}]*$/,/}/d;/^[ ]*\.rela\./d;/__rela_iplt_/d' ldscripts/dyntmp.$$
|
|
fi
|
|
if test -z "${NO_RELA_RELOCS}"; then
|
|
sed -e '/^[ ]*\.rel\.[^}]*$/,/}/d;/^[ ]*\.rel\./d;/__rel_iplt_/d' ldscripts/dyntmp.$$
|
|
fi
|
|
fi
|
|
rm -f ldscripts/dyntmp.$$
|
|
}
|
|
|
|
test -n "${NON_ALLOC_DYN}${SEPARATE_CODE}" || emit_dyn
|
|
|
|
cat <<EOF
|
|
.init ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+${INIT_START}}
|
|
KEEP (*(SORT_NONE(.init)))
|
|
${RELOCATING+${INIT_END}}
|
|
} ${FILL}
|
|
|
|
${TEXT_PLT+${PLT_NEXT_DATA-${PLT}}}
|
|
${TINY_READONLY_SECTION}
|
|
.text ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+${TEXT_START_SYMBOLS}}
|
|
${RELOCATING+*(.text.unlikely .text.*_unlikely .text.unlikely.*)}
|
|
${RELOCATING+*(.text.exit .text.exit.*)}
|
|
${RELOCATING+*(.text.startup .text.startup.*)}
|
|
${RELOCATING+*(.text.hot .text.hot.*)}
|
|
*(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
|
|
/* .gnu.warning sections are handled specially by elf32.em. */
|
|
*(.gnu.warning)
|
|
${RELOCATING+${OTHER_TEXT_SECTIONS}}
|
|
} ${FILL}
|
|
.fini ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+${FINI_START}}
|
|
KEEP (*(SORT_NONE(.fini)))
|
|
${RELOCATING+${FINI_END}}
|
|
} ${FILL}
|
|
${RELOCATING+PROVIDE (__${ETEXT_NAME} = .);}
|
|
${RELOCATING+PROVIDE (_${ETEXT_NAME} = .);}
|
|
${RELOCATING+PROVIDE (${ETEXT_NAME} = .);}
|
|
EOF
|
|
|
|
if test -n "${SEPARATE_CODE}"; then
|
|
if test -n "${RODATA_ADDR}"; then
|
|
RODATA_ADDR="\
|
|
SEGMENT_START(\"rodata-segment\", ${RODATA_ADDR}) + SIZEOF_HEADERS"
|
|
else
|
|
RODATA_ADDR="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
|
|
RODATA_ADDR="SEGMENT_START(\"rodata-segment\", ${RODATA_ADDR})"
|
|
fi
|
|
if test -n "${SHLIB_RODATA_ADDR}"; then
|
|
SHLIB_RODATA_ADDR="\
|
|
SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR}) + SIZEOF_HEADERS"
|
|
else
|
|
SHLIB_RODATA_ADDR="SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR})"
|
|
SHLIB_RODATA_ADDR="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
|
|
fi
|
|
cat <<EOF
|
|
/* Adjust the address for the rodata segment. We want to adjust up to
|
|
the same address within the page on the next page up. */
|
|
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${RODATA_ADDR};}}}
|
|
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_RODATA_ADDR};}}
|
|
${CREATE_PIE+${RELOCATING+. = ${SHLIB_RODATA_ADDR};}}
|
|
EOF
|
|
emit_early_ro
|
|
emit_dyn
|
|
fi
|
|
|
|
cat <<EOF
|
|
${WRITABLE_RODATA-${RODATA}}
|
|
.${RODATA_NAME}1 ${RELOCATING-0} : { *(.${RODATA_NAME}1) }
|
|
${CREATE_SHLIB-${SDATA2}}
|
|
${CREATE_SHLIB-${SBSS2}}
|
|
${OTHER_READONLY_SECTIONS}
|
|
.eh_frame_hdr : { *(.eh_frame_hdr) }
|
|
.eh_frame ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.eh_frame)) }
|
|
.gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table
|
|
.gcc_except_table.*) }
|
|
/* These sections are generated by the Sun/Oracle C++ compiler. */
|
|
.exception_ranges ${RELOCATING-0} : ONLY_IF_RO { *(.exception_ranges
|
|
.exception_ranges*) }
|
|
${TEXT_PLT+${PLT_NEXT_DATA+${PLT}}}
|
|
|
|
/* Adjust the address for the data segment. We want to adjust up to
|
|
the same address within the page on the next page up. */
|
|
${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}}
|
|
${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
|
|
${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
|
|
|
|
/* Exception handling */
|
|
.eh_frame ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.eh_frame)) }
|
|
.gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table .gcc_except_table.*) }
|
|
.exception_ranges ${RELOCATING-0} : ONLY_IF_RW { *(.exception_ranges .exception_ranges*) }
|
|
|
|
/* Thread Local Storage sections */
|
|
.tdata ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) }
|
|
.tbss ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }
|
|
|
|
.preinit_array ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_start = .);}}
|
|
KEEP (*(.preinit_array))
|
|
${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_end = .);}}
|
|
}
|
|
${RELOCATING+${INIT_ARRAY}}
|
|
${RELOCATING+${FINI_ARRAY}}
|
|
${SMALL_DATA_CTOR-${RELOCATING+${CTOR}}}
|
|
${SMALL_DATA_DTOR-${RELOCATING+${DTOR}}}
|
|
.jcr ${RELOCATING-0} : { KEEP (*(.jcr)) }
|
|
|
|
${RELOCATING+${DATARELRO}}
|
|
${OTHER_RELRO_SECTIONS}
|
|
${TEXT_DYNAMIC-${DYNAMIC}}
|
|
${DATA_GOT+${RELRO_NOW+${GOT}}}
|
|
${DATA_GOT+${RELRO_NOW+${GOTPLT}}}
|
|
${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT+${GOT}}}}
|
|
${RELOCATING+${DATA_SEGMENT_RELRO_END}}
|
|
${INITIAL_READWRITE_SECTIONS}
|
|
${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT-${GOT}}}}
|
|
${DATA_GOT+${RELRO_NOW-${GOTPLT}}}
|
|
|
|
${DATA_PLT+${PLT_BEFORE_GOT-${PLT}}}
|
|
|
|
.data ${RELOCATING-0} :
|
|
{
|
|
${RELOCATING+${DATA_START_SYMBOLS}}
|
|
*(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
|
|
${CONSTRUCTING+SORT(CONSTRUCTORS)}
|
|
}
|
|
.data1 ${RELOCATING-0} : { *(.data1) }
|
|
${WRITABLE_RODATA+${RODATA}}
|
|
${OTHER_READWRITE_SECTIONS}
|
|
${SMALL_DATA_CTOR+${RELOCATING+${CTOR}}}
|
|
${SMALL_DATA_DTOR+${RELOCATING+${DTOR}}}
|
|
${DATA_PLT+${PLT_BEFORE_GOT+${PLT}}}
|
|
${SDATA_GOT+${RELOCATING+${OTHER_GOT_SYMBOLS+. = .; ${OTHER_GOT_SYMBOLS}}}}
|
|
${SDATA_GOT+${GOT}}
|
|
${SDATA_GOT+${OTHER_GOT_SECTIONS}}
|
|
${SDATA}
|
|
${OTHER_SDATA_SECTIONS}
|
|
${RELOCATING+${DATA_END_SYMBOLS-${USER_LABEL_PREFIX}_edata = .; PROVIDE (${USER_LABEL_PREFIX}edata = .);}}
|
|
${RELOCATING+. = .;}
|
|
${RELOCATING+${USER_LABEL_PREFIX}__bss_start = .;}
|
|
${RELOCATING+${OTHER_BSS_SYMBOLS}}
|
|
${SBSS}
|
|
${BSS_PLT+${PLT}}
|
|
.${BSS_NAME} ${RELOCATING-0} :
|
|
{
|
|
*(.dyn${BSS_NAME})
|
|
*(.${BSS_NAME}${RELOCATING+ .${BSS_NAME}.* .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.
|
|
FIXME: Why do we need it? When there is no .bss section, we don't
|
|
pad the .data section. */
|
|
${RELOCATING+. = ALIGN(. != 0 ? ${ALIGNMENT} : 1);}
|
|
}
|
|
${OTHER_BSS_SECTIONS}
|
|
${LARGE_BSS_AFTER_BSS+${LARGE_BSS}}
|
|
${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
|
|
${RELOCATING+. = ALIGN(${ALIGNMENT});}
|
|
EOF
|
|
|
|
LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${LARGE_DATA_ADDR-.});"
|
|
SHLIB_LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${SHLIB_LARGE_DATA_ADDR-.});"
|
|
|
|
cat <<EOF
|
|
${RELOCATING+${CREATE_SHLIB-${CREATE_PIE-${LARGE_DATA_ADDR}}}}
|
|
${RELOCATING+${CREATE_SHLIB+${SHLIB_LARGE_DATA_ADDR}}}
|
|
${RELOCATING+${CREATE_PIE+${SHLIB_LARGE_DATA_ADDR}}}
|
|
${LARGE_SECTIONS}
|
|
${LARGE_BSS_AFTER_BSS-${LARGE_BSS}}
|
|
${RELOCATING+. = ALIGN(${ALIGNMENT});}
|
|
${RELOCATING+${OTHER_END_SYMBOLS}}
|
|
${RELOCATING+${END_SYMBOLS-${USER_LABEL_PREFIX}_end = .; PROVIDE (${USER_LABEL_PREFIX}end = .);}}
|
|
${RELOCATING+${DATA_SEGMENT_END}}
|
|
EOF
|
|
|
|
test -z "${NON_ALLOC_DYN}" || emit_dyn
|
|
|
|
cat <<EOF
|
|
/* 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
|
|
|
|
${TINY_DATA_SECTION}
|
|
${TINY_BSS_SECTION}
|
|
|
|
${STACK_ADDR+${STACK}}
|
|
${ATTRS_SECTIONS}
|
|
${OTHER_SECTIONS}
|
|
${RELOCATING+${OTHER_SYMBOLS}}
|
|
${RELOCATING+${DISCARDED}}
|
|
}
|
|
EOF
|