From b4477fa895b6aff727a5fd3b3d6d13342dfe57a9 Mon Sep 17 00:00:00 2001 From: Nick Clifton Date: Mon, 27 May 2002 17:52:56 +0000 Subject: [PATCH] Install new elf_chaos.sc script. --- ld/ChangeLog | 7 + ld/Makefile.am | 2 +- ld/Makefile.in | 4 +- ld/emulparams/elf_i386_chaos.sh | 2 +- ld/scripttempl/elf_chaos.sc | 354 ++++++++++++++++++++++++++++++++ 5 files changed, 366 insertions(+), 3 deletions(-) create mode 100644 ld/scripttempl/elf_chaos.sc diff --git a/ld/ChangeLog b/ld/ChangeLog index 6954fc4489d..6bcc8b67b57 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,3 +1,10 @@ +2002-05-27 Per Lundberg + + * Makefile.am (eelf_i386_chaos): Use elf_chaos.sc script. + * Makefile.in: Regenerate. + * emulparams/elf_chaos.sh: Use elf_chaos script. + * scripttempl/elf_chaos.sc: New file. + 2002-05-27 Richard Sandiford * ldlang.c (lang_size_sections_1): Move check for conflicting load diff --git a/ld/Makefile.am b/ld/Makefile.am index 5d716e0e486..74f44e7540e 100644 --- a/ld/Makefile.am +++ b/ld/Makefile.am @@ -678,7 +678,7 @@ eelf_i386_be.c: $(srcdir)/emulparams/elf_i386_be.sh \ $(srcdir)/emultempl/elf32.em $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS} ${GENSCRIPTS} elf_i386_be "$(tdir_elf_i386_be)" eelf_i386_chaos.c: $(srcdir)/emulparams/elf_i386_chaos.sh \ - $(srcdir)/emultempl/elf32.em $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS} + $(srcdir)/emultempl/elf32.em $(srcdir)/scripttempl/elf_chaos.sc ${GEN_DEPENDS} ${GENSCRIPTS} elf_i386_chaos "$(tdir_elf_i386_chaos)" eelf_i386_fbsd.c: $(srcdir)/emulparams/elf_i386_fbsd.sh \ $(srcdir)/emulparams/elf_i386.sh \ diff --git a/ld/Makefile.in b/ld/Makefile.in index 30fe5be5a48..6bcc193dc4c 100644 --- a/ld/Makefile.in +++ b/ld/Makefile.in @@ -103,6 +103,8 @@ STRIP = @STRIP@ USE_INCLUDED_LIBINTL = @USE_INCLUDED_LIBINTL@ USE_NLS = @USE_NLS@ VERSION = @VERSION@ +bfdincludedir = @bfdincludedir@ +bfdlibdir = @bfdlibdir@ l = @l@ INTLLIBS = @INTLLIBS@ @@ -1399,7 +1401,7 @@ eelf_i386_be.c: $(srcdir)/emulparams/elf_i386_be.sh \ $(srcdir)/emultempl/elf32.em $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS} ${GENSCRIPTS} elf_i386_be "$(tdir_elf_i386_be)" eelf_i386_chaos.c: $(srcdir)/emulparams/elf_i386_chaos.sh \ - $(srcdir)/emultempl/elf32.em $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS} + $(srcdir)/emultempl/elf32.em $(srcdir)/scripttempl/elf_chaos.sc ${GEN_DEPENDS} ${GENSCRIPTS} elf_i386_chaos "$(tdir_elf_i386_chaos)" eelf_i386_fbsd.c: $(srcdir)/emulparams/elf_i386_fbsd.sh \ $(srcdir)/emulparams/elf_i386.sh \ diff --git a/ld/emulparams/elf_i386_chaos.sh b/ld/emulparams/elf_i386_chaos.sh index f7ad3cf6c4e..e018231f043 100644 --- a/ld/emulparams/elf_i386_chaos.sh +++ b/ld/emulparams/elf_i386_chaos.sh @@ -1,4 +1,4 @@ -SCRIPT_NAME=elf +SCRIPT_NAME=elf_chaos OUTPUT_FORMAT="elf32-i386" TEXT_START_ADDR=0x40000000 MAXPAGESIZE=0x1000 diff --git a/ld/scripttempl/elf_chaos.sc b/ld/scripttempl/elf_chaos.sc new file mode 100644 index 00000000000..3307689c02d --- /dev/null +++ b/ld/scripttempl/elf_chaos.sc @@ -0,0 +1,354 @@ +# +# Unusual variables checked by this code: +# NOP - four byte opcode for no-op (defaults to 0) +# NO_SMALL_DATA - no .sbss/.sbss2/.sdata/.sdata2 sections if not +# empty. +# DATA_ADDR - if end-of-text-plus-one-page isn't right for data start +# INITIAL_READONLY_SECTIONS - at start of text segment +# OTHER_READONLY_SECTIONS - other than .text .init .rodata ... +# (e.g., .PARISC.milli) +# OTHER_TEXT_SECTIONS - these get put in .text when relocating +# OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... +# (e.g., .PARISC.global) +# OTHER_BSS_SECTIONS - other than .bss .sbss ... +# OTHER_SECTIONS - at the end +# EXECUTABLE_SYMBOLS - symbols that must be defined for an +# executable (e.g., _DYNAMIC_LINK) +# TEXT_START_SYMBOLS - symbols that appear at the start of the +# .text section. +# DATA_START_SYMBOLS - symbols that appear at the start of the +# .data section. +# OTHER_GOT_SYMBOLS - symbols defined just before .got. +# OTHER_GOT_SECTIONS - sections just after .got. +# OTHER_SDATA_SECTIONS - sections just after .sdata. +# OTHER_BSS_SYMBOLS - symbols that appear at the start of the +# .bss section besides __bss_start. +# DATA_PLT - .plt should be in data segment, not text segment. +# BSS_PLT - .plt should be in bss segment +# TEXT_DYNAMIC - .dynamic in text segment, not data segment. +# EMBEDDED - whether this is for an embedded system. +# SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set +# start address of shared library. +# INPUT_FILES - INPUT command of files to always include +# WRITABLE_RODATA - if set, the .rodata section should be writable +# INIT_START, INIT_END - statements just before and just after +# combination of .init sections. +# FINI_START, FINI_END - statements just before and just after +# combination of .fini sections. +# STACK_ADDR - start of a .stack section. +# OTHER_END_SYMBOLS - symbols to place right at the end of the script. +# +# When adding sections, do note that the names of some sections are used +# when specifying the start address of the next. +# + +# Many sections come in three flavours. There is the 'real' section, +# like ".data". Then there are the per-procedure or per-variable +# sections, generated by -ffunction-sections and -fdata-sections in GCC, +# and useful for --gc-sections, which for a variable "foo" might be +# ".data.foo". Then there are the linkonce sections, for which the linker +# eliminates duplicates, which are named like ".gnu.linkonce.d.foo". +# The exact correspondences are: +# +# Section Linkonce section +# .text .gnu.linkonce.t.foo +# .rodata .gnu.linkonce.r.foo +# .data .gnu.linkonce.d.foo +# .bss .gnu.linkonce.b.foo +# .sdata .gnu.linkonce.s.foo +# .sbss .gnu.linkonce.sb.foo +# .sdata2 .gnu.linkonce.s2.foo +# .sbss2 .gnu.linkonce.sb2.foo +# .debug_info .gnu.linkonce.wi.foo +# +# Each of these can also have corresponding .rel.* and .rela.* sections. + +test -z "$ENTRY" && ENTRY=_start +test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} +test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} +if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi +test -z "${ELFSIZE}" && ELFSIZE=32 +test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8" +test "$LD_FLAG" = "N" && DATA_ADDR=. +INTERP=".interp ${RELOCATING-0} : { *(.interp) }" +PLT=".plt ${RELOCATING-0} : { *(.plt) }" +DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }" +RODATA=".rodata ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }" +if test -z "${NO_SMALL_DATA}"; then + SBSS=".sbss ${RELOCATING-0} : + { + ${RELOCATING+PROVIDE (__sbss_start = .);} + ${RELOCATING+PROVIDE (___sbss_start = .);} + *(.dynsbss) + *(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*}) + *(.scommon) + ${RELOCATING+PROVIDE (__sbss_end = .);} + ${RELOCATING+PROVIDE (___sbss_end = .);} + }" + SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2${RELOCATING+ .sbss2.* .gnu.linkonce.sb2.*}) }" + SDATA="/* We want the small data sections together, so single-instruction offsets + can access them all, and initialized data all before uninitialized, so + we can shorten the on-disk segment size. */ + .sdata ${RELOCATING-0} : + { + ${RELOCATING+${SDATA_START_SYMBOLS}} + *(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*}) + }" + SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2${RELOCATING+ .sdata2.* .gnu.linkonce.s2.*}) }" + REL_SDATA=".rel.sdata ${RELOCATING-0} : { *(.rel.sdata${RELOCATING+ .rel.sdata.* .rel.gnu.linkonce.s.*}) } + .rela.sdata ${RELOCATING-0} : { *(.rela.sdata${RELOCATING+ .rela.sdata.* .rela.gnu.linkonce.s.*}) }" + REL_SBSS=".rel.sbss ${RELOCATING-0} : { *(.rel.sbss${RELOCATING+ .rel.sbss.* .rel.gnu.linkonce.sb.*}) } + .rela.sbss ${RELOCATING-0} : { *(.rela.sbss${RELOCATING+ .rela.sbss.* .rela.gnu.linkonce.sb.*}) }" + REL_SDATA2=".rel.sdata2 ${RELOCATING-0} : { *(.rel.sdata2${RELOCATING+ .rel.sdata2.* .rel.gnu.linkonce.s2.*}) } + .rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2${RELOCATING+ .rela.sdata2.* .rela.gnu.linkonce.s2.*}) }" + REL_SBSS2=".rel.sbss2 ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) } + .rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }" +fi +CTOR=" + ${CONSTRUCTING+${CTOR_START}} + /* gcc uses crtbegin.o to find the start of + the constructors, so we make sure it is + first. Because this is a wildcard, it + doesn't matter if the user does not + actually link against crtbegin.o; the + linker won't look for a file to match a + wildcard. The wildcard also means that it + doesn't matter which directory crtbegin.o + is in. */ + + KEEP (*crtbegin.o(.ctors)) + + /* We don't want to include the .ctor section from + from the crtend.o file until after the sorted ctors. + The .ctor section from the crtend file contains the + end of ctors marker and it must be last */ + + KEEP (*(EXCLUDE_FILE (*crtend.o $OTHER_EXCLUDE_FILES) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + ${CONSTRUCTING+${CTOR_END}} +" +DTOR=" + ${CONSTRUCTING+${DTOR_START}} + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o $OTHER_EXCLUDE_FILES) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + ${CONSTRUCTING+${DTOR_END}} +" +STACK=" .stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} : + { + ${RELOCATING+_stack = .;} + *(.stack) + }" + +test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}" + +cat <