mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-21 04:42:53 +08:00
2d3181c7c4
The special case for .init and .fini in update_wild_statements is ineffective for .init or .fini wildcards inside other output sections. The special case needs to be on the wildcard, not the output section. This patch is belt and braces, both fixing update_wild_statements and the scripts. * scripttempl/alpha.sc, * scripttempl/armbpabi.sc, * scripttempl/crisaout.sc, * scripttempl/elf32cr16.sc, * scripttempl/elf32crx.sc, * scripttempl/elf32xc16x.sc, * scripttempl/elf32xc16xl.sc, * scripttempl/elf32xc16xs.sc, * scripttempl/elf64hppa.sc, * scripttempl/elf_chaos.sc, * scripttempl/elfarc.sc, * scripttempl/elfarcv2.sc, * scripttempl/elfd30v.sc, * scripttempl/elfm68hc11.sc, * scripttempl/elfm68hc12.sc, * scripttempl/elfm9s12z.sc, * scripttempl/elfmicroblaze.sc, * scripttempl/elfxgate.sc, * scripttempl/elfxtensa.sc, * scripttempl/epiphany_4x4.sc, * scripttempl/ft32.sc, * scripttempl/i386beos.sc, * scripttempl/iq2000.sc, * scripttempl/mcorepe.sc, * scripttempl/mep.sc, * scripttempl/mips.sc, * scripttempl/moxie.sc, * scripttempl/pe.sc, * scripttempl/pep.sc, * scripttempl/ppcpe.sc, * scripttempl/tic4xcoff.sc, * scripttempl/tic80coff.sc, * scripttempl/v850.sc, * scripttempl/v850_rh850.sc, * scripttempl/visium.sc, * scripttempl/xstormy16.sc: Add KEEP and SORT_NONE to .init and .fini wildcards. * scripttempl/elf32xc16x.sc, * scripttempl/elf32xc16xl.sc, * scripttempl/elf32xc16xs.sc: Add .fini wildcard. * scripttempl/elf_chaos.sc: Add .init output section. * scripttempl/elfd30v.sc: Remove duplicate .init. * scripttempl/elfm68hc11.sc, * scripttempl/elfm68hc12.sc, * scripttempl/elfm9s12z.sc, * scripttempl/elfxgate.sc: Remove duplicate .init, and add .fini wildcard. * scripttempl/ppcpe.sc (INIT, FINI): Delete. * ldlang.c (update_wild_statements): Special case .init and .fini in the wildcard, not the output section.
348 lines
13 KiB
Scala
348 lines
13 KiB
Scala
# Copyright (C) 2014-2019 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 0)
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# NO_SMALL_DATA - no .sbss/.sbss2/.sdata/.sdata2 sections if not
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# empty.
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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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# OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
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# (e.g., .PARISC.global)
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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_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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# 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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# DATA_PLT - .plt should be in data segment, not text segment.
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# BSS_PLT - .plt should be in bss 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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#
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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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#
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# Each of these can also have corresponding .rel.* and .rela.* sections.
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test -z "$ENTRY" && ENTRY=_start
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test -z "${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 -z "$ATTRS_SECTIONS" && ATTRS_SECTIONS=".gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }"
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test "$LD_FLAG" = "N" && DATA_ADDR=.
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INTERP=".interp ${RELOCATING-0} : { *(.interp) }"
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PLT=".plt ${RELOCATING-0} : { *(.plt) }"
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DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
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RODATA=".rodata ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }"
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if test -z "${NO_SMALL_DATA}"; then
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SBSS=".sbss ${RELOCATING-0} :
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{
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${RELOCATING+PROVIDE (__sbss_start = .);}
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${RELOCATING+PROVIDE (___sbss_start = .);}
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*(.dynsbss)
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*(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})
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*(.scommon)
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${RELOCATING+PROVIDE (__sbss_end = .);}
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${RELOCATING+PROVIDE (___sbss_end = .);}
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}"
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SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2${RELOCATING+ .sbss2.* .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 ${RELOCATING-0} :
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{
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${RELOCATING+${SDATA_START_SYMBOLS}}
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*(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*})
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}"
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SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2${RELOCATING+ .sdata2.* .gnu.linkonce.s2.*}) }"
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REL_SDATA=".rel.sdata ${RELOCATING-0} : { *(.rel.sdata${RELOCATING+ .rel.sdata.* .rel.gnu.linkonce.s.*}) }
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.rela.sdata ${RELOCATING-0} : { *(.rela.sdata${RELOCATING+ .rela.sdata.* .rela.gnu.linkonce.s.*}) }"
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REL_SBSS=".rel.sbss ${RELOCATING-0} : { *(.rel.sbss${RELOCATING+ .rel.sbss.* .rel.gnu.linkonce.sb.*}) }
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.rela.sbss ${RELOCATING-0} : { *(.rela.sbss${RELOCATING+ .rela.sbss.* .rela.gnu.linkonce.sb.*}) }"
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REL_SDATA2=".rel.sdata2 ${RELOCATING-0} : { *(.rel.sdata2${RELOCATING+ .rel.sdata2.* .rel.gnu.linkonce.s2.*}) }
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.rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2${RELOCATING+ .rela.sdata2.* .rela.gnu.linkonce.s2.*}) }"
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REL_SBSS2=".rel.sbss2 ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) }
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.rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }"
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fi
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CTOR="
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${CONSTRUCTING+${CTOR_START}}
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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KEEP (*crtbegin?.o(.ctors))
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/* We don't want to include the .ctor section from
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the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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${CONSTRUCTING+${CTOR_END}}
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"
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DTOR="
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${CONSTRUCTING+${DTOR_START}}
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KEEP (*crtbegin.o(.dtors))
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KEEP (*crtbegin?.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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${CONSTRUCTING+${DTOR_END}}
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"
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STACK=" .stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
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{
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${RELOCATING+_stack = .;}
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*(.stack)
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}"
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test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
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cat <<EOF
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/* Copyright (C) 2014-2019 Free Software Foundation, Inc.
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Copying and distribution of this script, 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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OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
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"${LITTLE_OUTPUT_FORMAT}")
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OUTPUT_ARCH(${OUTPUT_ARCH})
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${RELOCATING+ENTRY(${ENTRY})}
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${RELOCATING+${LIB_SEARCH_DIRS}}
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${RELOCATING+/* Do we need any of these for elf?
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__DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */}
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${RELOCATING+${EXECUTABLE_SYMBOLS}}
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${RELOCATING+${INPUT_FILES}}
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${RELOCATING- /* For some reason, the Solaris linker makes bad executables
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if gld -r is used and the intermediate file has sections starting
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at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
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bug. But for now assigning the zero vmas works. */}
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SECTIONS
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{
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/* Read-only sections, merged into text segment: */
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${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
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${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0};}}
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${CREATE_SHLIB-${INTERP}}
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${INITIAL_READONLY_SECTIONS}
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${TEXT_DYNAMIC+${DYNAMIC}}
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.hash ${RELOCATING-0} : { *(.hash) }
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.dynsym ${RELOCATING-0} : { *(.dynsym) }
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.dynstr ${RELOCATING-0} : { *(.dynstr) }
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.gnu.version ${RELOCATING-0} : { *(.gnu.version) }
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.gnu.version_d ${RELOCATING-0}: { *(.gnu.version_d) }
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.gnu.version_r ${RELOCATING-0}: { *(.gnu.version_r) }
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EOF
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if [ "x$COMBRELOC" = x ]; then
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COMBRELOCCAT=cat
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else
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COMBRELOCCAT="cat > $COMBRELOC"
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fi
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eval $COMBRELOCCAT <<EOF
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.rel.init ${RELOCATING-0} : { *(.rel.init) }
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.rela.init ${RELOCATING-0} : { *(.rela.init) }
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.rel.text ${RELOCATING-0} : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
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.rela.text ${RELOCATING-0} : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
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.rel.fini ${RELOCATING-0} : { *(.rel.fini) }
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.rela.fini ${RELOCATING-0} : { *(.rela.fini) }
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.rel.rodata ${RELOCATING-0} : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }
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.rela.rodata ${RELOCATING-0} : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }
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${OTHER_READONLY_RELOC_SECTIONS}
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.rel.data ${RELOCATING-0} : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
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.rela.data ${RELOCATING-0} : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
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.rel.ctors ${RELOCATING-0} : { *(.rel.ctors) }
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.rela.ctors ${RELOCATING-0} : { *(.rela.ctors) }
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.rel.dtors ${RELOCATING-0} : { *(.rel.dtors) }
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.rela.dtors ${RELOCATING-0} : { *(.rela.dtors) }
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.rel.got ${RELOCATING-0} : { *(.rel.got) }
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.rela.got ${RELOCATING-0} : { *(.rela.got) }
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${OTHER_GOT_RELOC_SECTIONS}
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${REL_SDATA}
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${REL_SBSS}
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${REL_SDATA2}
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${REL_SBSS2}
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.rel.bss ${RELOCATING-0} : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }
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.rela.bss ${RELOCATING-0} : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }
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EOF
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if [ -n "$COMBRELOC" ]; then
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cat <<EOF
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.rel.dyn ${RELOCATING-0} :
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{
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EOF
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sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
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cat <<EOF
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}
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.rela.dyn ${RELOCATING-0} :
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{
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EOF
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sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
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cat <<EOF
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}
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EOF
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fi
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cat <<EOF
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${RELOCATING+. = ALIGN(0x1000);}
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.rel.plt ${RELOCATING-0} : { *(.rel.plt) }
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.rela.plt ${RELOCATING-0} : { *(.rela.plt) }
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${OTHER_PLT_RELOC_SECTIONS}
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${DATA_PLT-${BSS_PLT-${PLT}}}
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.text ${RELOCATING-0} :
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{
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${RELOCATING+${TEXT_START_SYMBOLS}}
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*(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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${RELOCATING+${OTHER_TEXT_SECTIONS}}
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} =${NOP-0}
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.init ${RELOCATING-0} :
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{
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${RELOCATING+${INIT_START}}
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KEEP (*(SORT_NONE(.init)))
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${RELOCATING+${INIT_END}}
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} =${NOP-0}
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.fini ${RELOCATING-0} :
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{
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${RELOCATING+${FINI_START}}
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KEEP (*(SORT_NONE(.fini)))
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${RELOCATING+${FINI_END}}
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} =${NOP-0}
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${RELOCATING+PROVIDE (__etext = .);}
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${RELOCATING+PROVIDE (_etext = .);}
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${RELOCATING+PROVIDE (etext = .);}
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${RELOCATING+. = ALIGN(0x1000);}
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${CREATE_SHLIB-${SDATA2}}
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${CREATE_SHLIB-${SBSS2}}
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${OTHER_READONLY_SECTIONS}
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.eh_frame_hdr ${RELOCATING-0} : { *(.eh_frame_hdr) }
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${RELOCATING+. = ALIGN(0x1000);}
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.data ${RELOCATING-0} :
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{
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${RELOCATING+*(.rodata .rodata.*)
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*(.rodata1)
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*(.gnu.linkonce.r.*)
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${DATA_START_SYMBOLS}}
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*(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
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${CONSTRUCTING+SORT(CONSTRUCTORS)}
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${RELOCATING+KEEP (*(.eh_frame))
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*(.gcc_except_table)
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${CTOR}
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${DTOR}
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KEEP (*(.jcr))}
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}
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.data1 ${RELOCATING-0} : { *(.data1) }
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${RELOCATING+. = ALIGN(0x1000);}
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.gcc_except_table ${RELOCATING-0} : { *(.gcc_except_table) }
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${WRITABLE_RODATA+${RODATA}}
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${OTHER_READWRITE_SECTIONS}
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${TEXT_DYNAMIC-${DYNAMIC}}
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${DATA_PLT+${PLT}}
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${RELOCATING+${OTHER_GOT_SYMBOLS}}
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.got ${RELOCATING-0} : {${RELOCATING+ *(.got.plt)} *(.got) }
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${OTHER_GOT_SECTIONS}
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${CREATE_SHLIB+${SDATA2}}
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${CREATE_SHLIB+${SBSS2}}
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${SDATA}
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${OTHER_SDATA_SECTIONS}
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${RELOCATING+_edata = .;}
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${RELOCATING+PROVIDE (edata = .);}
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${RELOCATING+__bss_start = .;}
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${RELOCATING+${OTHER_BSS_SYMBOLS}}
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${SBSS}
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${BSS_PLT+${PLT}}
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${RELOCATING+. = ALIGN(0x1000);}
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.bss ${RELOCATING-0} :
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{
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${RELOCATING+*(.dynbss)}
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*(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
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${RELOCATING+*(COMMON)
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/* Align here to ensure that the .bss section occupies space up to
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_end. Align after .bss to ensure correct alignment even if the
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.bss section disappears because there are no input sections. */
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. = ALIGN(${ALIGNMENT});}
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}
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${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
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${RELOCATING+. = ALIGN(${ALIGNMENT});}
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${RELOCATING+${OTHER_END_SYMBOLS}}
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${RELOCATING+_end = .;}
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${RELOCATING+PROVIDE (end = .);}
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${STACK_ADDR+${STACK}}
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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EOF
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. $srcdir/scripttempl/DWARF.sc
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cat <<EOF
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${ATTRS_SECTIONS}
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${OTHER_SECTIONS}
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${RELOCATING+${OTHER_SYMBOLS}}
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}
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EOF
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