[uClinux-dev] [patch] the arm-uclinux target

Adrian von Bidder avbidder at acter.ch
Fri Nov 9 07:37:38 EST 2001


Heyho!

[this is for information only. discussion of the patch shold take place
on binutils at sources.redhat.com]

Adapting the changes our existing toolchain to a release working
with gcc-3 lead to this.

Enclosed patch against 2.11.2 basically patches config.sub to accept
arm-uclinux (I have submitted this to config-patches, and it was
approved. So expect this part to go away soon) and copied the linker
script template to uclinux. Modification is just moving the section
start addresses and moving .rodata into .data.

As I am not in any way an experienced hacker, and this patch ist largely
untested, comments are very welcome.

Note that arm thumb  interworking does not seem to work right now. To
the unenlightened it seems that adding the interworking stubs is done
without relocation, so the jumps end up to be wrong by a constant offset
(start of code).

greets from Zürich
-- vbi
-------------- next part --------------
diff -rudN binutils-2.11.2.orig/config.sub binutils-2.11.2/config.sub
--- binutils-2.11.2.orig/config.sub	Thu Mar 22 12:12:23 2001
+++ binutils-2.11.2/config.sub	Thu Nov  1 13:51:32 2001
@@ -1017,7 +1017,8 @@
 	      | -mingw32* | -linux-gnu* | -uxpv* | -beos* | -mpeix* | -udk* \
 	      | -interix* | -uwin* | -rhapsody* | -darwin* | -opened* \
 	      | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
-	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* | -os2*)
+	      | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+	      | -os2* | -uclinux*)
 	# Remember, each alternative MUST END IN *, to match a version number.
 		;;
 	-qnx*)
diff -rudN binutils-2.11.2.orig/ld/Makefile.in binutils-2.11.2/ld/Makefile.in
--- binutils-2.11.2.orig/ld/Makefile.in	Mon Jun 11 12:05:07 2001
+++ binutils-2.11.2/ld/Makefile.in	Thu Nov  1 13:48:03 2001
@@ -1048,6 +1048,10 @@
   $(srcdir)/emultempl/elf32.em $(srcdir)/emultempl/armelf.em \
   $(srcdir)/scripttempl/elf.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} armelf_linux "$(tdir_armelf_linux)"
+earmelf_uclinux.c: $(srcdir)/emulparams/armelf_uclinux.sh \
+  $(srcdir)/emultempl/elf32.em $(srcdir)/emultempl/armelf.em \
+  $(srcdir)/scripttempl/elf-uclinux.sc ${GEN_DEPENDS}
+	${GENSCRIPTS} armelf_uclinux "$(tdir_armelf_uclinux)"
 earmaoutb.c:	$(srcdir)/emulparams/armaoutb.sh \
   $(srcdir)/emultempl/generic.em $(srcdir)/scripttempl/armaout.sc ${GEN_DEPENDS}
 	${GENSCRIPTS} armaoutb "$(tdir_armaoutb)"
diff -rudN binutils-2.11.2.orig/ld/configure.tgt binutils-2.11.2/ld/configure.tgt
--- binutils-2.11.2.orig/ld/configure.tgt	Mon Jun 11 12:05:08 2001
+++ binutils-2.11.2/ld/configure.tgt	Thu Nov  1 12:05:57 2001
@@ -189,7 +189,7 @@
 arm-*-elf)		targ_emul=armelf ;;
 arm-*-oabi)		targ_emul=armelf_oabi ;;
 arm*-*-linux-gnu*)	targ_emul=armelf_linux; targ_extra_emuls=armelf ;;
-arm*-*-uclinux*)	targ_emul=armelf_linux; targ_extra_emuls=armelf ;;
+arm*-*-uclinux*)	targ_emul=armelf_uclinux; targ_extra_emuls="armelf armelf_linux";;
 arm*-*-conix*)		targ_emul=armelf ;;
 thumb-*-linux-gnu* | thumb-*-uclinux*)	targ_emul=armelf_linux; targ_extra_emuls=armelf ;;
 strongarm-*-coff)	targ_emul=armcoff ;;
diff -rudN binutils-2.11.2.orig/ld/emulparams/armelf_uclinux.sh binutils-2.11.2/ld/emulparams/armelf_uclinux.sh
--- binutils-2.11.2.orig/ld/emulparams/armelf_uclinux.sh	Thu Jan  1 01:00:00 1970
+++ binutils-2.11.2/ld/emulparams/armelf_uclinux.sh	Thu Nov  1 13:21:27 2001
@@ -0,0 +1,16 @@
+ARCH=arm
+SCRIPT_NAME=armelf_uclinux
+OUTPUT_FORMAT="elf32-littlearm"
+BIG_OUTPUT_FORMAT="elf32-bigarm"
+LITTLE_OUTPUT_FORMAT="elf32-littlearm"
+MAXPAGESIZE=0x1000
+TEMPLATE_NAME=elf32
+EXTRA_EM_FILE=armelf
+GENERATE_SHLIB_SCRIPT=yes
+
+DATA_START_SYMBOLS='__data_start = . ;';
+OTHER_TEXT_SECTIONS='*(.glue_7t) *(.glue_7)'
+OTHER_BSS_SYMBOLS='__bss_start__ = .;'
+OTHER_BSS_END_SYMBOLS='_bss_end__ = . ; __bss_end__ = . ; __end__ = . ;'
+
+TEXT_START_ADDR=0x00000000
diff -rudN binutils-2.11.2.orig/ld/scripttempl/armelf_uclinux.sc binutils-2.11.2/ld/scripttempl/armelf_uclinux.sc
--- binutils-2.11.2.orig/ld/scripttempl/armelf_uclinux.sc	Thu Jan  1 01:00:00 1970
+++ binutils-2.11.2/ld/scripttempl/armelf_uclinux.sc	Thu Nov  1 13:37:01 2001
@@ -0,0 +1,411 @@
+#
+# Unusual variables checked by this code:
+#	NOP - two 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 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 and .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
+{
+  /* Read-only sections, merged into text segment: */
+  ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
+  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
+  ${CREATE_SHLIB-${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)	}
+
+  .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+*(.rel.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.*)}
+    }
+  .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 = .);}
+  ${CREATE_SHLIB-${SDATA2}}
+  ${CREATE_SHLIB-${SBSS2}}
+
+  /* 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}}
+    ${RELOCATING+*(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r.*)}}
+    ${RELOCATING+*(.rodata1) }
+    ${RELOCATING+${OTHER_READONLY_SECTIONS}}
+
+    *(.data)
+    ${RELOCATING+*(.data.*)}
+    ${RELOCATING+*(.gnu.linkonce.d.*)}
+    ${CONSTRUCTING+SORT(CONSTRUCTORS)}
+  }
+  .data1 ${RELOCATING-0} : { *(.data1) }
+  .eh_frame : { KEEP (*(.eh_frame)) }
+  .gcc_except_table : { *(.gcc_except_table) }
+  ${RELOCATING+${OTHER_READWRITE_SECTIONS}}
+  ${RELOCATING+${CTOR}}
+  ${RELOCATING+${DTOR}}
+  ${DATA_PLT+${PLT}}
+  ${RELOCATING+${OTHER_GOT_SYMBOLS}}
+  .got		${RELOCATING-0} : { *(.got.plt) *(.got) }
+  ${CREATE_SHLIB+${SDATA2}}
+  ${CREATE_SHLIB+${SBSS2}}
+  ${TEXT_DYNAMIC-${DYNAMIC}}
+  /* 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_GOT_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
diff -rudN binutils-2.11.2.orig/ld/scripttempl/elf-uclinux.sc binutils-2.11.2/ld/scripttempl/elf-uclinux.sc
--- binutils-2.11.2.orig/ld/scripttempl/elf-uclinux.sc	Thu Jan  1 01:00:00 1970
+++ binutils-2.11.2/ld/scripttempl/elf-uclinux.sc	Thu Nov  1 13:42:34 2001
@@ -0,0 +1,412 @@
+#
+# Unusual variables checked by this code:
+#	NOP - two 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 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 and .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
+{
+  /* Read-only sections, merged into text segment: */
+  ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
+  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
+  ${CREATE_SHLIB-${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)	}
+
+  .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+*(.rel.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.*)}
+    }
+  .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 = .);}
+  ${CREATE_SHLIB-${SDATA2}}
+  ${CREATE_SHLIB-${SBSS2}}
+
+  /* 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}}
+    ${RELOCATING+${RODATA}}
+    ${RELOCATING+*(.rodata1) }
+    ${RELOCATING+${OTHER_READONLY_SECTIONS}}
+
+    *(.data)
+    ${RELOCATING+*(.data.*)}
+    ${RELOCATING+*(.gnu.linkonce.d.*)}
+    ${CONSTRUCTING+SORT(CONSTRUCTORS)}
+  }
+  .data1 ${RELOCATING-0} : { *(.data1) }
+  .eh_frame : { KEEP (*(.eh_frame)) }
+  .gcc_except_table : { *(.gcc_except_table) }
+  ${WRITABLE_RODATA+${RODATA}}
+  ${RELOCATING+${OTHER_READWRITE_SECTIONS}}
+  ${RELOCATING+${CTOR}}
+  ${RELOCATING+${DTOR}}
+  ${DATA_PLT+${PLT}}
+  ${RELOCATING+${OTHER_GOT_SYMBOLS}}
+  .got		${RELOCATING-0} : { *(.got.plt) *(.got) }
+  ${CREATE_SHLIB+${SDATA2}}
+  ${CREATE_SHLIB+${SBSS2}}
+  ${TEXT_DYNAMIC-${DYNAMIC}}
+  /* 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_GOT_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


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