--- /dev/null
+#
+# Unusual variables checked by this code:
+# NOP - four byte opcode for no-op (defaults to 0)
+# DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
+# INITIAL_READONLY_SECTIONS - at start of data 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.
+#
+# 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
+#
+# 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.*)} ${RELOCATING+*(.gnu.linkonce.r.*)} }"
+SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) ${RELOCATING+*(.sbss2.*)} ${RELOCATING+*(.gnu.linkonce.sb2.*)} }"
+SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) ${RELOCATING+*(.sdata2.*)} ${RELOCATING+*(.gnu.linkonce.s2.*)} }"
+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))
+
+ /* 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=" .dtors ${CONSTRUCTING-0} :
+ {
+ ${CONSTRUCTING+${DTOR_START}}
+ KEEP (*crtbegin.o(.dtors))
+ KEEP (*(EXCLUDE_FILE (*crtend.o $OTHER_EXCLUDE_FILES) .dtors))
+ KEEP (*(SORT(.dtors.*)))
+ KEEP (*(.dtors))
+ ${CONSTRUCTING+${DTOR_END}}
+ }"
+
+# if this is for an embedded system, don't add SIZEOF_HEADERS.
+if [ -z "$EMBEDDED" ]; then
+ test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
+else
+ test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
+fi
+
+cat <<EOF
+OUTPUT_FORMAT("${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
+{
+ ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
+ ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
+ ${CREATE_SHLIB-${INTERP}}
+ ${TEXT_DYNAMIC+${DYNAMIC}}
+
+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.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.t.*)}
+ }
+ .rela.text ${RELOCATING-0} :
+ {
+ *(.rela.text)
+ ${RELOCATING+*(.rela.text.*)}
+ ${RELOCATING+*(.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.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.r.*)}
+ }
+ .rela.rodata ${RELOCATING-0} :
+ {
+ *(.rela.rodata)
+ ${RELOCATING+*(.rela.rodata.*)}
+ ${RELOCATING+*(.rela.gnu.linkonce.r.*)}
+ }
+ ${OTHER_READONLY_RELOC_SECTIONS}
+ .rel.data ${RELOCATING-0} :
+ {
+ *(.rel.data)
+ ${RELOCATING+*(.rel.data.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.d.*)}
+ }
+ .rela.data ${RELOCATING-0} :
+ {
+ *(.rela.data)
+ ${RELOCATING+*(.rela.data.*)}
+ ${RELOCATING+*(.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 ${RELOCATING-0} :
+ {
+ *(.rel.sdata)
+ ${RELOCATING+*(.rel.sdata.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.s.*)}
+ }
+ .rela.sdata ${RELOCATING-0} :
+ {
+ *(.rela.sdata)
+ ${RELOCATING+*(.rela.sdata.*)}
+ ${RELOCATING+*(.rela.gnu.linkonce.s.*)}
+ }
+ .rel.sbss ${RELOCATING-0} :
+ {
+ *(.rel.sbss)
+ ${RELOCATING+*(.rel.sbss.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.sb.*)}
+ }
+ .rela.sbss ${RELOCATING-0} :
+ {
+ *(.rela.sbss)
+ ${RELOCATING+*(.rela.sbss.*)}
+ ${RELOCATING+*(.rela.gnu.linkonce.sb.*)}
+ }
+ .rel.sdata2 ${RELOCATING-0} :
+ {
+ *(.rel.sdata2)
+ ${RELOCATING+*(.rel.sdata2.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.s2.*)}
+ }
+ .rela.sdata2 ${RELOCATING-0} :
+ {
+ *(.rela.sdata2)
+ ${RELOCATING+*(.rela.sdata2.*)}
+ ${RELOCATING+*(.rela.gnu.linkonce.s2.*)}
+ }
+ .rel.sbss2 ${RELOCATING-0} :
+ {
+ *(.rel.sbss2)
+ ${RELOCATING+*(.rel.sbss2.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.sb2.*)}
+ }
+ .rela.sbss2 ${RELOCATING-0} :
+ {
+ *(.rela.sbss2)
+ ${RELOCATING+*(.rela.sbss2.*)}
+ ${RELOCATING+*(.rela.gnu.linkonce.sb2.*)}
+ }
+ .rel.bss ${RELOCATING-0} :
+ {
+ *(.rel.bss)
+ ${RELOCATING+*(.rel.bss.*)}
+ ${RELOCATING+*(.rel.gnu.linkonce.b.*)}
+ }
+ .rela.bss ${RELOCATING-0} :
+ {
+ *(.rela.bss)
+ ${RELOCATING+*(.rela.bss.*)}
+ ${RELOCATING+*(.rela.gnu.linkonce.b.*)}
+ }
+EOF
+if [ -n "$COMBRELOC" ]; then
+cat <<EOF
+ .rel.dyn :
+ {
+EOF
+sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
+cat <<EOF
+ }
+ .rela.dyn :
+ {
+EOF
+sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
+cat <<EOF
+ }
+EOF
+fi
+cat <<EOF
+ .rel.plt ${RELOCATING-0} : { *(.rel.plt) }
+ .rela.plt ${RELOCATING-0} : { *(.rela.plt) }
+ ${OTHER_PLT_RELOC_SECTIONS}
+
+ .init ${RELOCATING-0} :
+ {
+ ${RELOCATING+${INIT_START}}
+ KEEP (*(.init))
+ ${RELOCATING+${INIT_END}}
+ } =${NOP-0}
+
+ ${DATA_PLT-${BSS_PLT-${PLT}}}
+ .text ${RELOCATING-0} :
+ {
+ ${RELOCATING+${TEXT_START_SYMBOLS}}
+ *(.text)
+ ${RELOCATING+*(.text.*)}
+ *(.stub)
+ /* .gnu.warning sections are handled specially by elf32.em. */
+ *(.gnu.warning)
+ ${RELOCATING+*(.gnu.linkonce.t.*)}
+ ${RELOCATING+${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 = .);}
+
+ /* Adjust the address for the data segment. We want to adjust up to
+ the same address within the page on the next page up. */
+ ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}
+ ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}
+
+ .data ${RELOCATING-0} :
+ {
+ ${RELOCATING+${DATA_START_SYMBOLS}}
+ *(.data)
+ ${RELOCATING+*(.data.*)}
+ ${RELOCATING+*(.gnu.linkonce.d.*)}
+ ${CONSTRUCTING+SORT(CONSTRUCTORS)}
+ }
+ .data1 ${RELOCATING-0} : { *(.data1) }
+ .eh_frame ${RELOCATING-0} :
+ {
+ ${RELOCATING+PROVIDE (__eh_frame_begin = .);}
+ *(.eh_frame)
+ LONG (0);
+ ${RELOCATING+PROVIDE (__eh_frame_end = .);}
+ } ${RELOCATING+}
+ .gcc_except_table : { *(.gcc_except_table) }
+ ${INITIAL_READONLY_SECTIONS}
+ .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) }
+ ${RODATA}
+ .rodata1 ${RELOCATING-0} : { *(.rodata1) }
+ ${CREATE_SHLIB-${SDATA2}}
+ ${CREATE_SHLIB-${SBSS2}}
+ ${RELOCATING+${OTHER_READONLY_SECTIONS}}
+ ${RELOCATING+${OTHER_READWRITE_SECTIONS}}
+ ${TEXT_DYNAMIC-${DYNAMIC}}
+ ${RELOCATING+${CTOR}}
+ ${RELOCATING+${DTOR}}
+ .jcr : { KEEP (*(.jcr)) }
+ ${DATA_PLT+${PLT}}
+ ${RELOCATING+${OTHER_GOT_SYMBOLS}}
+ .got ${RELOCATING-0} : { *(.got.plt) *(.got) }
+ ${RELOCATING+${OTHER_GOT_SECTIONS}}
+ ${CREATE_SHLIB+${SDATA2}}
+ ${CREATE_SHLIB+${SBSS2}}
+ /* 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.*)}
+ ${RELOCATING+*(.gnu.linkonce.s.*)}
+ }
+ ${RELOCATING+${OTHER_SDATA_SECTIONS}}
+ ${RELOCATING+_edata = .;}
+ ${RELOCATING+PROVIDE (edata = .);}
+ ${RELOCATING+__bss_start = .;}
+ ${RELOCATING+${OTHER_BSS_SYMBOLS}}
+ .sbss ${RELOCATING-0} :
+ {
+ ${RELOCATING+PROVIDE (__sbss_start = .);}
+ ${RELOCATING+PROVIDE (___sbss_start = .);}
+ *(.dynsbss)
+ *(.sbss)
+ ${RELOCATING+*(.sbss.*)}
+ ${RELOCATING+*(.gnu.linkonce.sb.*)}
+ *(.scommon)
+ ${RELOCATING+PROVIDE (__sbss_end = .);}
+ ${RELOCATING+PROVIDE (___sbss_end = .);}
+ }
+ ${BSS_PLT+${PLT}}
+ .bss ${RELOCATING-0} :
+ {
+ *(.dynbss)
+ *(.bss)
+ ${RELOCATING+*(.bss.*)}
+ ${RELOCATING+*(.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});}
+ }
+ ${RELOCATING+${OTHER_BSS_SECTIONS}}
+ ${RELOCATING+. = ALIGN(${ALIGNMENT});}
+ ${RELOCATING+_end = .;}
+ ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
+ ${RELOCATING+PROVIDE (end = .);}
+
+ /* 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) }
+
+ /* 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) }
+
+ ${RELOCATING+${OTHER_RELOCATING_SECTIONS}}
+
+ /* These must appear regardless of ${RELOCATING}. */
+ ${OTHER_SECTIONS}
+}
+EOF
projects / binutils-gdb.git / commitdiff