mirror of
https://sourceware.org/git/binutils-gdb.git
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b0daac83d7
PR 22762 * scripttempl/pe.sc: Remove PROVIDE()s from __CTOR_LIST__ and __DTOR_LIST__ symbols. Add a comment explaining why this is necessary. * scripttemp/pep.sc: Likewise. * ld.texinfo (PROVIDE): Add a note about the effect of common symbols.
447 lines
12 KiB
Scala
447 lines
12 KiB
Scala
# Linker script for PE.
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#
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# Copyright (C) 2014-2018 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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if test -z "${RELOCATEABLE_OUTPUT_FORMAT}"; then
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RELOCATEABLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
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fi
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# We can't easily and portably get an unquoted $ in a shell
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# substitution, so we do this instead.
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# Sorting of the .foo$* sections is required by the definition of
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# grouped sections in PE.
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# Sorting of the file names in R_IDATA is required by the
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# current implementation of dlltool (this could probably be changed to
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# use grouped sections instead).
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if test "${RELOCATING}"; then
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R_TEXT='*(SORT(.text$*))'
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if test "x$LD_FLAG" = "xauto_import" ; then
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R_DATA='*(SORT(.data$*))
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*(.rdata)
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*(SORT(.rdata$*))'
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R_RDATA=''
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else
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R_DATA='*(SORT(.data$*))'
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R_RDATA='*(.rdata)
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*(SORT(.rdata$*))'
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fi
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R_IDATA234='
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KEEP (SORT(*)(.idata$2))
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KEEP (SORT(*)(.idata$3))
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/* These zeroes mark the end of the import list. */
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LONG (0); LONG (0); LONG (0); LONG (0); LONG (0);
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KEEP (SORT(*)(.idata$4))'
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R_IDATA5='KEEP (SORT(*)(.idata$5))'
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R_IDATA67='
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KEEP (SORT(*)(.idata$6))
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KEEP (SORT(*)(.idata$7))'
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R_CRT_XC='KEEP (*(SORT(.CRT$XC*))) /* C initialization */'
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R_CRT_XI='KEEP (*(SORT(.CRT$XI*))) /* C++ initialization */'
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R_CRT_XL='KEEP (*(SORT(.CRT$XL*))) /* TLS callbacks */'
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R_CRT_XP='KEEP (*(SORT(.CRT$XP*))) /* Pre-termination */'
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R_CRT_XT='KEEP (*(SORT(.CRT$XT*))) /* Termination */'
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R_TLS='
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KEEP (*(.tls$AAA))
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KEEP (*(.tls))
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KEEP (*(.tls$))
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KEEP (*(SORT(.tls$*)))
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KEEP (*(.tls$ZZZ))'
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R_RSRC='
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KEEP (*(.rsrc))
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KEEP (*(.rsrc$*))'
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else
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R_TEXT=
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R_DATA=
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R_RDATA='*(.rdata)'
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R_IDATA234=
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R_IDATA5=
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R_IDATA67=
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R_CRT_XC=
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R_CRT_XI=
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R_CRT_XL=
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R_CRT_XP=
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R_CRT_XT=
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R_TLS='*(.tls)'
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R_RSRC='*(.rsrc)'
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fi
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cat <<EOF
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/* Copyright (C) 2014-2018 Free Software Foundation, Inc.
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Copying and distribution of this script, with or without modification,
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are permitted in any medium without royalty provided the copyright
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notice and this notice are preserved. */
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${RELOCATING+OUTPUT_FORMAT(${OUTPUT_FORMAT})}
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${RELOCATING-OUTPUT_FORMAT(${RELOCATEABLE_OUTPUT_FORMAT})}
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${OUTPUT_ARCH+OUTPUT_ARCH(${OUTPUT_ARCH})}
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${LIB_SEARCH_DIRS}
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SECTIONS
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{
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${RELOCATING+/* Make the virtual address and file offset synced if the alignment is}
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${RELOCATING+ lower than the target page size. */}
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${RELOCATING+. = SIZEOF_HEADERS;}
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${RELOCATING+. = ALIGN(__section_alignment__);}
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.text ${RELOCATING+ __image_base__ + ( __section_alignment__ < ${TARGET_PAGE_SIZE} ? . : __section_alignment__ )} :
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{
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${RELOCATING+ KEEP(*(.init))}
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*(.text)
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${R_TEXT}
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${RELOCATING+ *(.text.*)}
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${RELOCATING+ *(.gnu.linkonce.t.*)}
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${RELOCATING+*(.glue_7t)}
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${RELOCATING+*(.glue_7)}
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${CONSTRUCTING+
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/* Note: we always define __CTOR_LIST__ and ___CTOR_LIST__ here,
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we do not PROVIDE them. This is because the ctors.o startup
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code in libgcc defines them as common symbols, with the
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expectation that they will be overridden by the definitions
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here. If we PROVIDE the symbols then they will not be
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overridden and global constructors will not be run.
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This does mean that it is not possible for a user to define
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their own __CTOR_LIST__ and __DTOR_LIST__ symbols. If that
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ability is needed a custom linker script will have to be
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used. (The custom script can just be a copy of this script
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with the PROVIDE() qualifiers added).
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See PR 22762 for more details. */
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___CTOR_LIST__ = .;
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__CTOR_LIST__ = .;
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LONG (-1);
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KEEP(*(.ctors));
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KEEP(*(.ctor));
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KEEP(*(SORT_BY_NAME(.ctors.*)));
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LONG (0);
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}
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${CONSTRUCTING+
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/* See comment about __CTOR_LIST__ above. The same reasoning
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applies here too. */
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___DTOR_LIST__ = .;
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__DTOR_LIST__ = .;
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LONG (-1);
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KEEP(*(.dtors));
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KEEP(*(.dtor));
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KEEP(*(SORT_BY_NAME(.dtors.*)));
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LONG (0);
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}
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${RELOCATING+ KEEP (*(.fini))}
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/* ??? Why is .gcc_exc here? */
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${RELOCATING+ *(.gcc_exc)}
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${RELOCATING+PROVIDE (etext = .);}
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${RELOCATING+PROVIDE (_etext = .);}
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${RELOCATING+ KEEP (*(.gcc_except_table))}
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}
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/* The Cygwin32 library uses a section to avoid copying certain data
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on fork. This used to be named ".data$nocopy". The linker used
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to include this between __data_start__ and __data_end__, but that
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breaks building the cygwin32 dll. Instead, we name the section
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".data_cygwin_nocopy" and explicitly include it after __data_end__. */
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.data ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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${RELOCATING+__data_start__ = . ;}
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*(.data)
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${RELOCATING+*(.data2)}
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${R_DATA}
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KEEP(*(.jcr))
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${RELOCATING+__data_end__ = . ;}
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${RELOCATING+*(.data_cygwin_nocopy)}
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}
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.rdata ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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${R_RDATA}
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${RELOCATING+__rt_psrelocs_start = .;}
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${RELOCATING+KEEP(*(.rdata_runtime_pseudo_reloc))}
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${RELOCATING+__rt_psrelocs_end = .;}
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}
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${RELOCATING+__rt_psrelocs_size = __rt_psrelocs_end - __rt_psrelocs_start;}
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${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
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${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
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${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
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${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
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.eh_frame ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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KEEP(*(.eh_frame${RELOCATING+*}))
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}
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.pdata ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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KEEP(*(.pdata${RELOCATING+*}))
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}
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.bss ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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${RELOCATING+__bss_start__ = . ;}
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*(.bss)
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*(COMMON)
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${RELOCATING+__bss_end__ = . ;}
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}
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.edata ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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*(.edata)
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}
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/DISCARD/ :
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{
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*(.debug\$S)
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*(.debug\$T)
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*(.debug\$F)
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*(.drectve)
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${RELOCATING+ *(.note.GNU-stack)}
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${RELOCATING+ *(.gnu.lto_*)}
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}
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.idata ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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/* This cannot currently be handled with grouped sections.
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See pe.em:sort_sections. */
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${R_IDATA234}
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${RELOCATING+__IAT_start__ = .;}
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${R_IDATA5}
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${RELOCATING+__IAT_end__ = .;}
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${R_IDATA67}
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}
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.CRT ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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${RELOCATING+___crt_xc_start__ = . ;}
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${R_CRT_XC}
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${RELOCATING+___crt_xc_end__ = . ;}
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${RELOCATING+___crt_xi_start__ = . ;}
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${R_CRT_XI}
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${RELOCATING+___crt_xi_end__ = . ;}
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${RELOCATING+___crt_xl_start__ = . ;}
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${R_CRT_XL}
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/* ___crt_xl_end__ is defined in the TLS Directory support code */
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${RELOCATING+___crt_xp_start__ = . ;}
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${R_CRT_XP}
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${RELOCATING+___crt_xp_end__ = . ;}
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${RELOCATING+___crt_xt_start__ = . ;}
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${R_CRT_XT}
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${RELOCATING+___crt_xt_end__ = . ;}
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}
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/* Windows TLS expects .tls\$AAA to be at the start and .tls\$ZZZ to be
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at the end of section. This is important because _tls_start MUST
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be at the beginning of the section to enable SECREL32 relocations with TLS
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data. */
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.tls ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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${RELOCATING+___tls_start__ = . ;}
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${R_TLS}
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${RELOCATING+___tls_end__ = . ;}
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}
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.endjunk ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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/* end is deprecated, don't use it */
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${RELOCATING+PROVIDE (end = .);}
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${RELOCATING+PROVIDE ( _end = .);}
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${RELOCATING+ __end__ = .;}
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}
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.rsrc ${RELOCATING+BLOCK(__section_alignment__)} : SUBALIGN(4)
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{
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${R_RSRC}
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}
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.reloc ${RELOCATING+BLOCK(__section_alignment__)} :
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{
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*(.reloc)
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}
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.stab ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.stab)
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}
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.stabstr ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.stabstr)
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}
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section. Unlike other targets that fake this by putting the
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section VMA at 0, the PE format will not allow it. */
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/* DWARF 1.1 and DWARF 2. */
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.debug_aranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_aranges)
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}
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.zdebug_aranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_aranges)
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}
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.debug_pubnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_pubnames)
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}
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.zdebug_pubnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_pubnames)
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}
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.debug_pubtypes ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_pubtypes)
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}
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.zdebug_pubtypes ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_pubtypes)
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}
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/* DWARF 2. */
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.debug_info ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_info${RELOCATING+ .gnu.linkonce.wi.*})
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}
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.zdebug_info ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_info${RELOCATING+ .zdebug.gnu.linkonce.wi.*})
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}
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.debug_abbrev ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_abbrev)
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}
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.zdebug_abbrev ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_abbrev)
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}
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.debug_line ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_line)
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}
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.zdebug_line ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_line)
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}
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.debug_frame ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_frame*)
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}
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.zdebug_frame ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_frame*)
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}
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.debug_str ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_str)
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}
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.zdebug_str ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_str)
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}
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.debug_loc ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_loc)
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}
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.zdebug_loc ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_loc)
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}
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.debug_macinfo ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_macinfo)
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}
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.zdebug_macinfo ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_macinfo)
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}
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/* SGI/MIPS DWARF 2 extensions. */
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.debug_weaknames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_weaknames)
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}
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.zdebug_weaknames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_weaknames)
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}
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.debug_funcnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_funcnames)
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}
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.zdebug_funcnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_funcnames)
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}
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.debug_typenames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_typenames)
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}
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.zdebug_typenames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_typenames)
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}
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.debug_varnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_varnames)
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}
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.zdebug_varnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_varnames)
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}
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.debug_macro ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_macro)
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}
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.zdebug_macro ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_macro)
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}
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/* DWARF 3. */
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.debug_ranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_ranges)
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}
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.zdebug_ranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_ranges)
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}
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/* DWARF 4. */
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.debug_types ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_types${RELOCATING+ .gnu.linkonce.wt.*})
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}
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.zdebug_types ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_types${RELOCATING+ .gnu.linkonce.wt.*})
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}
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/* For Go and Rust. */
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.debug_gdb_scripts ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.debug_gdb_scripts)
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}
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.zdebug_gdb_scripts ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
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{
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*(.zdebug_gdb_scripts)
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}
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}
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EOF
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