Install new elf_chaos.sc script.

1 files changed, 354 insertions, 0 deletions

diff --git a/ld/scripttempl/elf_chaos.sc b/ld/scripttempl/elf_chaos.sc
new file mode 100644
index 0000000..3307689
--- /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="${TEXT_START_ADDR}"
+
+cat <<EOF
+OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
+	      "${LITTLE_OUTPUT_FORMAT}")
+OUTPUT_ARCH(${OUTPUT_ARCH})
+ENTRY(${ENTRY})
+
+${RELOCATING+${LIB_SEARCH_DIRS}}
+${RELOCATING+/* Do we need any of these for elf?
+   __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}}  */}
+${RELOCATING+${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: */
+  ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
+  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0};}}
+  ${CREATE_SHLIB-${INTERP}}
+  ${INITIAL_READONLY_SECTIONS}
+  ${TEXT_DYNAMIC+${DYNAMIC}}
+  .hash         ${RELOCATING-0} : { *(.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
+else
+  COMBRELOCCAT="cat > $COMBRELOC"
+fi
+eval $COMBRELOCCAT <<EOF
+  .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   ${RELOCATING-0} : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }
+  .rela.rodata  ${RELOCATING-0} : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }
+  ${OTHER_READONLY_RELOC_SECTIONS}
+  .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.*}) }
+  .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      ${RELOCATING-0} : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }
+  .rela.bss     ${RELOCATING-0} : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }
+EOF
+if [ -n "$COMBRELOC" ]; then
+cat <<EOF
+  .rel.dyn      ${RELOCATING-0} :
+    {
+EOF
+sed -e '/^[ 	]*[{}][ 	]*$/d;/:[ 	]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/      \1/' $COMBRELOC
+cat <<EOF
+    }
+  .rela.dyn     ${RELOCATING-0} :
+    {
+EOF
+sed -e '/^[ 	]*[{}][ 	]*$/d;/:[ 	]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/      \1/' $COMBRELOC
+cat <<EOF
+    }
+EOF
+fi
+cat <<EOF
+  . = ALIGN(0x1000);
+  .rel.plt      ${RELOCATING-0} : { *(.rel.plt) }
+  .rela.plt     ${RELOCATING-0} : { *(.rela.plt) }
+  ${OTHER_PLT_RELOC_SECTIONS}
+  ${DATA_PLT-${BSS_PLT-${PLT}}}
+  .text         ${RELOCATING-0} :
+  {
+    ${RELOCATING+${TEXT_START_SYMBOLS}}
+    *(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
+    /* .gnu.warning sections are handled specially by elf32.em.  */
+    *(.gnu.warning)
+    ${RELOCATING+${OTHER_TEXT_SECTIONS}}
+  } =${NOP-0}
+  .fini         ${RELOCATING-0} :
+  {
+    ${RELOCATING+${FINI_START}}
+    KEEP (*(.fini))
+    ${RELOCATING+${FINI_END}}
+  } =${NOP-0}
+  ${RELOCATING+PROVIDE (__etext = .);}
+  ${RELOCATING+PROVIDE (_etext = .);}
+  ${RELOCATING+PROVIDE (etext = .);}
+  . = ALIGN(0x1000);
+  ${CREATE_SHLIB-${SDATA2}}
+  ${CREATE_SHLIB-${SBSS2}}
+  ${OTHER_READONLY_SECTIONS}
+  .eh_frame_hdr : { *(.eh_frame_hdr) }
+
+  . = ALIGN(0x1000);
+  .data         ${RELOCATING-0} :
+  {
+    *(.rodata .rodata.*)
+    *(.rodata1)
+    *(.gnu.linkonce.r.*)
+    ${RELOCATING+${DATA_START_SYMBOLS}}
+    *(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
+    ${CONSTRUCTING+SORT(CONSTRUCTORS)}
+    KEEP (*(.eh_frame))
+    *(.gcc_except_table)
+    ${CTOR}
+    ${DTOR}
+    KEEP (*(.jcr))
+  }
+  .data1        ${RELOCATING-0} : { *(.data1) }
+  . = ALIGN(0x1000);
+  .gcc_except_table ${RELOCATING-0} : { *(.gcc_except_table) }
+  ${WRITABLE_RODATA+${RODATA}}
+  ${OTHER_READWRITE_SECTIONS}
+  ${TEXT_DYNAMIC-${DYNAMIC}}
+  ${DATA_PLT+${PLT}}
+  ${RELOCATING+${OTHER_GOT_SYMBOLS}}
+  .got          ${RELOCATING-0} : { *(.got.plt) *(.got) }
+  ${OTHER_GOT_SECTIONS}
+  ${CREATE_SHLIB+${SDATA2}}
+  ${CREATE_SHLIB+${SBSS2}}
+  ${SDATA}
+  ${OTHER_SDATA_SECTIONS}
+  ${RELOCATING+_edata = .;}
+  ${RELOCATING+PROVIDE (edata = .);}
+  ${RELOCATING+__bss_start = .;}
+  ${RELOCATING+${OTHER_BSS_SYMBOLS}}
+  ${SBSS}
+  ${BSS_PLT+${PLT}}
+  . = ALIGN(0x1000);
+  .bss          ${RELOCATING-0} :
+  {
+   *(.dynbss)
+   *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
+   *(COMMON)
+   /* Align here to ensure that the .bss section occupies space up to
+      _end.  Align after .bss to ensure correct alignment even if the
+      .bss section disappears because there are no input sections.  */
+   ${RELOCATING+. = ALIGN(${ALIGNMENT});}
+  }
+  ${OTHER_BSS_SECTIONS}
+  ${RELOCATING+. = ALIGN(${ALIGNMENT});}
+  ${RELOCATING+_end = .;}
+  ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
+  ${RELOCATING+PROVIDE (end = .);}
+
+  /* Stabs debugging sections.  */
+  . = ALIGN(0x1000);
+  .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) }
+
+  . = ALIGN(0x1000);
+  .comment       0 : { *(.comment) }
+
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+
+  ${STACK_ADDR+${STACK}}
+  ${OTHER_SECTIONS}
+  ${RELOCATING+${OTHER_END_SYMBOLS}}
+}
+EOF