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Re: The Linux binutils 2.24.51.0.1 is released

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Subject: Re: The Linux binutils 2.24.51.0.1 is released
From: "H.J. Lu" <hjl.tools@gmail.com>
Date: Fri, 8 Nov 2013 09:35:05 -0800
Cc: linux-gcc@vger.kernel.org, GCC Development <gcc@gcc.gnu.org>, GNU C Library <libc-alpha@sourceware.org>, Mat Hostetter <mat@lcs.mit.edu>, Warner Losh <imp@village.org>, linux-mips@linux-mips.org, Ralf Baechle <ralf@linux-mips.org>
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I renamed the release tag to hjl/linux/release/2.24.51.0.1


H.J.
On Fri, Nov 8, 2013 at 9:25 AM, H.J. Lu <hongjiu.lu@intel.com> wrote:
> It is also available as linux/release/2.24.51.0.1 tag at
>
> https://sourceware.org/git/?p=binutils-gdb.git;a=summary
>
>
> H.J.
> ---
> This is the beta release of binutils 2.24.51.0.1 for Linux, which is
> based on binutils 2013 1106 master branch on sourceware.org plus
> various changes. It is purely for Linux.
>
> All relevant patches in patches have been applied to the source tree.
> You can take a look at patches/README to see what have been applied and
> in what order they have been applied.
>
> Starting from the 2.23.52.0.2 release, when creating executables, BFD
> linker will issue an error for undefined weak reference which is
> defined in a shared library from DT_NEEDED.  Previously BFD linker
> will silently include the shared library from DT_NEEDED.
>
> Starting from the 2.21.51.0.3 release, you must remove .ctors/.dtors
> section sentinels when building glibc or other C run-time libraries.
> Otherwise, you will run into:
>
> http://sourceware.org/bugzilla/show_bug.cgi?id=12343
>
> Starting from the 2.21.51.0.2 release, BFD linker has the working LTO
> plugin support. It can be used with GCC 4.5 and above. For GCC 4.5, you
> need to configure GCC with --enable-gold to enable LTO plugin support.
>
> Starting from the 2.21.51.0.2 release, binutils fully supports compressed
> debug sections.  However, compressed debug section isn't turned on by
> default in assembler. I am planning to turn it on for x86 assembler in
> the future release, which may lead to the Linux kernel bug messages like
>
> WARNING: lib/ts_kmp.o (.zdebug_aranges): unexpected non-allocatable section.
>
> But the resulting kernel works fine.
>
> Starting from the 2.20.51.0.4 release, no diffs against the previous
> release will be provided.
>
> You can enable both gold and bfd ld with --enable-gold=both.  Gold will
> be installed as ld.gold and bfd ld will be installed as ld.bfd.  By
> default, ld.bfd will be installed as ld.  You can use the configure
> option, --enable-gold=both/gold to choose gold as the default linker,
> ld.  IA-32 binary and X64_64 binary tar balls are configured with
> --enable-gold=both/ld --enable-plugins --enable-threads.
>
> Starting from the 2.18.50.0.4 release, the x86 assembler no longer
> accepts
>
>         fnstsw %eax
>
> fnstsw stores 16bit into %ax and the upper 16bit of %eax is unchanged.
> Please use
>
>         fnstsw %ax
>
> Starting from the 2.17.50.0.4 release, the default output section LMA
> (load memory address) has changed for allocatable sections from being
> equal to VMA (virtual memory address), to keeping the difference between
> LMA and VMA the same as the previous output section in the same region.
>
> For
>
> .data.init_task : { *(.data.init_task) }
>
> LMA of .data.init_task section is equal to its VMA with the old linker.
> With the new linker, it depends on the previous output section. You
> can use
>
> .data.init_task : AT (ADDR(.data.init_task)) { *(.data.init_task) }
>
> to ensure that LMA of .data.init_task section is always equal to its
> VMA. The linker script in the older 2.6 x86-64 kernel depends on the
> old behavior.  You can add AT (ADDR(section)) to force LMA of
> .data.init_task section equal to its VMA. It will work with both old
> and new linkers. The x86-64 kernel linker script in kernel 2.6.13 and
> above is OK.
>
> The new x86_64 assembler no longer accepts
>
>         monitor %eax,%ecx,%edx
>
> You should use
>
>         monitor %rax,%ecx,%edx
>
> or
>         monitor
>
> which works with both old and new x86_64 assemblers. They should
> generate the same opcode.
>
> The new i386/x86_64 assemblers no longer accept instructions for moving
> between a segment register and a 32bit memory location, i.e.,
>
>         movl (%eax),%ds
>         movl %ds,(%eax)
>
> To generate instructions for moving between a segment register and a
> 16bit memory location without the 16bit operand size prefix, 0x66,
>
>         mov (%eax),%ds
>         mov %ds,(%eax)
>
> should be used. It will work with both new and old assemblers. The
> assembler starting from 2.16.90.0.1 will also support
>
>         movw (%eax),%ds
>         movw %ds,(%eax)
>
> without the 0x66 prefix. Patches for 2.4 and 2.6 Linux kernels are
> available at
>
> http://www.kernel.org/pub/linux/devel/binutils/linux-2.4-seg-4.patch
> http://www.kernel.org/pub/linux/devel/binutils/linux-2.6-seg-5.patch
>
> The ia64 assembler is now defaulted to tune for Itanium 2 processors.
> To build a kernel for Itanium 1 processors, you will need to add
>
> ifeq ($(CONFIG_ITANIUM),y)
>         CFLAGS += -Wa,-mtune=itanium1
>         AFLAGS += -Wa,-mtune=itanium1
> endif
>
> to arch/ia64/Makefile in your kernel source tree.
>
> Please report any bugs related to binutils 2.24.51.0.1 to
> hjl.tools@gmail.com
>
> and
>
> http://www.sourceware.org/bugzilla/
>
> Changes from binutils 2.23.52.0.2:
>
> 1. Update from binutils 2013 1106.
> 2. Add Intel AVX-512 new instruction support.
> 3. Add Intel MPX new instruction support.
> 4. Update ld to support x86-64 large PIC model with TLS GD and LD sequences.
> 5. Fix ld to properly handle R_X86_64_DTPOFF64.  PR 15685.
> 6. Fix x86 assembler to properly check 64-bit register.
> 7. Update x86 assembler not to align text/data/bss sections for ELF.
> 8. Fix x86 assembler to properly support cvttps2pi.  PR 13572.
> 9. Fix ld to generate warning sections in glibc.  PR 15762.
> 10. Avoid corrupted binary generated by objcopy/strip.  PR 16056.
> 11. Improve ld hash.  PR 15657.
> 12. Fix objdump on /proc/kcore.  PR 15818.
> 13. Improve DWARF support.
> 14. Improve addr2line.  PR 15994.
> 15. Improve readelf.  PR 15745.
> 16. Improve gold.
> 17. Improve nacl support.
> 18. Improve aarch64 support.
> 19. Improve arm support.
> 20. Improve cris support.
> 21. Improve hppa support.
> 22. Improve m32c support.
> 23. Improve m68k support.
> 24. Improve mips support.
> 25. Improve msp430 support.
> 26. Improve nios2 support.
> 27. Improve ppc support.
> 28. Improve rl78 support.
> 29. Improve rx support.
> 30. Improve rs6000 support.
> 31. Improve s390 support.
> 32. Improve sparc support.
> 33. Improve tile support.
> 34. Improve vax support.
>
> Changes from binutils 2.23.52.0.1:
>
> 1. Update from binutils 2013 0426.
> 2. Add x32 support to embedded x86_64 ELF target.
> 3. Fix an x86 IFUNC linker regression.  PR 15371.
> 4. Fix an LTO linker weak definition bug.  PR 15323.
> 5. Remove stale dynamic table entries for symbols optimized out by LTO.
> PR 15270.
> 6. Revert the fix for PR 15149.  When creating executables, BFD linker
> won't issue an error for undefined weak reference which is defined in
> 7 shared library from DT_NEEDED.
> 8. Ignore weak reference which is is defined in a shared library from
> DT_NEEDED.  This may change the behavior of resulting binaries with
> undefined weak reference.  List libraries needed on command-line as work
> around.  PR 12549.
> 9. Fix a MIPS ELF linker crash.  PR 15382.
> 10. Align LMA per VMA alignment only if needed.  PR 15222.
> 11. Fix a BFD decompress memory leak.  PR 15356.
> 12. Properly check SIB byte in x86 disassembler.
> 13, Fix invalid memory access in readelf.  PR 15191.
> 14, Fix invalid memory access in DWARF dumper.  PRs 15206/15202/15201.
> 15. Improve gold.
> 16. Improve aarch64 support.
> 17. Improve arm support.
> 18. Improve avr support.
> 19. Improve h8300 support.
> 20. Improve mips support.
> 21. Improve nios2 support.
> 22. Improve ppc support.
> 23. Improve rl78 support.
> 24. Improve sh support.
> 25. Improve sparc support.
> 26. Improve tic6x support.
> 27. Improve v850 support.
>
> Changes from binutils 2.23.51.0.9:
>
> 1. Update from binutils 2013 0226.
> 2. Add Intel SAMP new instruction support.
> 3. Allow dynamic R_386_SIZE32, R_X86_64_SIZE32 and R_X86_64_SIZE64
> relocations agaist TLS symbols.
> 4. Fix BFD linker to set STB_GNU_UNIQUE only for definition.  PR 15167.
> 5. Fix BFD linker to set STB_GNU_UNIQUE only if symbol is defined in
> regular object.  PR 15107.
> 6. Don't add DT_NEEDED for references from the LTO IR input.  PR 15146.
> 7. When creating executables, BFD linker will issue an error for undefined
> weak reference which is defined in a shared library from DT_NEEDED.
> PR 15149.
> 8. Also trace symbol from the LTO IR input.  PR 15141.
> 9. Support stripping LTO IR sections.  PR 15033.
> 10. Don't allow a nested archive pointing to itself and don't generate
> bad archive.  PR 15140.
> 11. Fix objcopy segfault on non-ELF input.  PR 14873.
> 12. Update DWARF dump support.
> 13. Improve gold.
> 14. Add nios2 support.
> 15. Improve mach support.
> 16. Improve aarch64 support.
> 17. Improve arm support.
> 18. Improve avr support.
> 19. Improve h8300 support.
> 20. Improve meta support.
> 21. Improve mips support.
> 22. Improve ppc support.
> 23. Improve rl78 support.
> 24. Improve sparc support.
> 25. Improve v850 support.
>
> Changes from binutils 2.23.51.0.8:
>
> 1. Update from binutils 2013 0118.
> 2. Support R_386_SIZE32, R_X86_64_SIZE32 and R_X86_64_SIZE64
> relocations.
> 3. Fix x86 assembler for "xtrn@got -1".  PR 15019.
> 4. Don't generate old dtags with --enable-new-dtags.
> 5. Add Meta support.
> 6. Improve gold.
> 7. Improve aarch64 support.
> 8. Improve arm support.
> 9. Improve cr16 support.
> 10. Improve mips support.
> 11. Improve ppc support.
> 12. Improve v850 support.
> 13. Improve xgate support.
>
> Changes from binutils 2.23.51.0.7:
>
> 1. Properly adjust h->plt.refcount.  PR 14980.
>
> Changes from binutils 2.23.51.0.6:
>
> 1. Update from binutils 2012 1218.
> 2. Add missing R_*_IRELATIVE relocations.  PR 14968.
> 3. Remove unnecessary R_*_NONE relocations.  PR 14956.
> 4. Fix ar/ranlib on 32-bit filesystems.  PR 14933.
> 5. Fix a "Not enough room for program headers" linker bug.  PR 14926.
> 6. Support self-assignment in a linker script to convert symbols to
> absolute.  PR 14962.
> 7. Support --copy-dt-needed-entries when creating DSO.  PR 14915.
> 8. Improve linker plugin DSO error handling.  PR 14904.
> 9. Issue warning for plugin dummy.  PR 12760.
> 10. Add -fuse-ld=bfd|gold support to ld and gold.
> 11. Fix gold configure.  PR 14897.
> 12. Correct gas dependency.  PR 14899.
> 13. Add rdos support.
> 14. Improve gold.
> 15. Improve nacl support.
> 16. Improve aarch64 support.
> 17. Improve arm support.
> 18. Improve microblaze support.
> 19. Improve mips support.
> 20. Improve ppc support.
> 21. Improve tile support.
>
> Changes from binutils 2.23.51.0.5:
>
> 1. Update from binutils 2012 1123.
> 2. Fix 64-bit jecxz encoding regression in x86 assembler.  PR 14859.
> 3. Revert an accidental linker change.  PR 14862.
> 4. Fix x32 TLS LD to LE optimization in gold.  PR 14858.
> 5. Add "-z global" option to set DF_1_GLOBAL to ld.
> 6. Improve ld plugin error handling.
> 7. Port ld lib32 arrangement from Debian.
> 8. Properly set the output maxpagesize when rewriting program header.
> PR 14493.
> 9. Add additional DF_1_XXX support to readelf.
> 10. Improve nacl support with separate code segments.
> 11. Improve macos support.
> 12. Improve arm support.
> 13. Improve microblaze support.
> 14. Improve mips support.
> 15. Improve ppc support.
> 16. Improve sparc support.
>
> Changes from binutils 2.23.51.0.4:
>
> 1. Update from binutils 2012 1110.
> 2. Support new Linux NOTE sections.
> 3. Add -z stacksize=SIZE option to ld to set size of stack segment.
> 4. Fix a BFD IOVEC close bug.  PR 14813.
> 5. Fix a BFD IOVEC on archive bug.  PR 14567.
> 6. Fix archive support for non-ELF targets.  PR 14481.
> 7. Improve gold.
> 8. Improve COFF support.
> 9. Improve arm support.
> 10. Improve microblaze support.
> 11. Improve mips support.
> 12. Improve ppc support.
> 13. Improve rx support.
> 14. Improve s390 support.
> 15. Improve v850 support.
> 16. Improve xgate support.
>
> Changes from binutils 2.23.51.0.3:
>
> 1. Update from binutils 2012 1026.
> 2. Fix an LTO linker bug.  PR 14747.
> 3. Add cx16 arch feature to x86 assembler.
> 4. Add -march=bdver3 option to x86 assembler.
> 5. Properly handle ignored REX prefix with fwait in x86 disassembler.
> 6. Fix x32 register names in objdump DWARF output.
> 7. Add NT_SIGINFO/NT_FILE support to readelf.
> 8. Add linker --ignore-unresolved-symbol option from NetBSD.
> 9. Treat .gdb_index section as debug section.  PR 14662.
> 10. Add --debug-dump=addr, --debug_dump=cu_index options to readelf and
> objdump.
> 11. Add dwp, DWARF packaging utility.
> 12. Add compressed debug section support to Windows.  PR 14067.
> 13. Improve gold.
> 14. Improve aarch64 support.
> 15. Improve arm support.
> 16. Improve hppa support.
> 17. Improve mips support.
> 18. Improve s390 support.
> 19. Improve tile support.
> 20. Improve v850 support.
>
> Changes from binutils 2.23.51.0.2:
>
> 1. Update from binutils 2012 0918.
> 2. Properly handle versioned STB_SECONDARY symbols.
> 3. Fix wrong symbol type with common symbol and weak function.  PR 14591.
> 4. Ignore discarded sections when converting mov to lea.
> 5. Improve gold.
> 6. Improve avr support.
> 7. Improve aarch64 support.
> 8. Improve moxie support.
> 9. Improve ppc support.
> 10. Improve tile support.
>
> Changes from binutils 2.23.51.0.1:
>
> 1. Update from binutils 2012 0908.
> 2. Fix STB_SECONDARY support:
>    a. Generate STB_SECONDARY symbols in DSO by default.
>    b. Properly handle STB_SECONDAY symbols when linking with archive.
>    c. Don't allow .weak directive to override .secondary directive.
> 3. Optimize i386/x86-64 linker to convert GOT load (MOV) to LEA.
> 4. Clarify x86 assembler error messages.  PR 14457.
> 5. Improve NOP/prefetch support in x86 disassembler.
> 6. Improve Intel syntax support in x86 assembler.
> 7. Add -march={btver1, btver2} options to x86 assembler.
> 8. Fix binutils build with --enable-shared.  PR 4970.
> 9. Also provide __executable_start for PIE.  PR 14525.
> 10. Use xmalloc to allocate memory for argument list file.  PR 14526.
> 11. Add Intel Itanium Series 9500 support to assembler/diassembler.
> 12. Ignore section symbols without a BFD section when outputing symbols
> and check bad section index.  PR 14493.
> 13. Improve archive reader.  PR 14475.
> 14. Support DW_OP_GNU_const_index reader.
> 15. Improve handling of imput files with empty ELF group sections.
> PR 14444.
> 16. Fix IFUNC support in s390 linker.
> 17. Improve gold.
> 18. Add aarch64 support.
> 19. Improve arm support.
> 20. Improve mips support.
> 21. Improve mmix support.
> 22. Improve moxie support.
> 23. Improve ppc support.
> 24. Improve s390 support.
> 25. Improve tile support.
>
> Changes from binutils 2.22.52.0.4:
>
> 1. Update from binutils 2012 0806.
> 2. Add Intel ADX, RDSEED and PRFCHW new instruction support.
> 3. Support 'rep bsf', 'rep bsr', and 'rep ret' syntax in x86 assembler.
> 4. Mark 256-bit vmovntdqa as AVX2 instruction for x86 assembler.
> 5. Improve x86 assembler error handling.
> 6. Improve the repeat directive support in assembler.  PR 14201.
> 7. Improve x86-64 disassembler on superfluous prefixes.
> 8. Fix x86 disassembler crash on bad XOP instructions.  PR 14355.
> 9. Support STB_SECONDARY:
>
> https://groups.google.com/forum/?hl=en&fromgroups#!forum/generic-abi
>
> 10. Added SORT_NONE to the linker script language to disable section
> sorting and properly handle .init/.fini sections.  PR 14156.
> 11. Fix a weak alias linker bug.  PR 14323.
> 12. Fix the NULL GNU_RELRO segment linker bug.  PR 14207.
> 13. Fix the bad GNU_RELRO segment linker bug.  PR 14215.
> 14. Add linker support of __ehdr_start symbol for the ELF file header.
> 15. Add IFUNC support to s390 linker.
> 16. Fix ar for >4GB member.  PR 14302.
> 17. Fix objcopy --compress-debug-sections on empty debug section.  PR
> 14319.
> 18. Fix readelf/objdup to display null bytes in DWARF debug info.  PR
> 14420.
> 19. Improve gold.
> 20. Improve arm support.
> 21. Improve avr support.
> 22. Improve cris support.
> 23. Improve m68k support.
> 24. Improve mips support.
> 25. Improve ppc support.
> 26. Improve vax support.
> 27. Improve xgate support.
>
> Changes from binutils 2.22.52.0.3:
>
> 1. Update from binutils 2012 0604.
> 2. Check addend overflow for R_X86_64_RELATIVE64.
> 3. Fix ar/nm/ranlib with --plugin.
> 4. Create .eh_frame_hdr section only if needed.  PR 13909.
> 5. Properly create .eh_frame section for PLT.  PR 14105.
> 6. Fix a linker crash. PR 14170.
> 7. Fix readelf to properly display addend.
> 8. Don't make _DYNAMIC/_GLOBAL_OFFSET_TABLE_/_PROCEDURE_LINKAGE_TABLE_
> symbols absolute for x86 and ppc.
> 9. Properly handle shared libraries with zero dynamic symbols.  PRs
> 7023/13962.
> 10. Update readelf/assembler to support multibyte characters in symbol
> names.
> 11. Add --strip-dwo/--extract-dwo options to objcopy/strip.
> 12. Add R_X86_64_RELATIVE64 support to gold.
> 13. Improve gold.
> 14. Improve NACL support.
> 15. Improve alpha support.
> 16. Improve avr support.
> 17. Improve m68k support.
> 18. Improve mips support.
> 19. Improve ppc support.
> 20. Improve vax support.
>
> Changes from binutils 2.22.52.0.2:
>
> 1. Update from binutils 2012 0507.
> 2. Fix Linux kernel build by reverting the PR 13621 fix.  PR 14052.
> 3. Add support for x86_64-*-linux-gnux32 target.
> 4. Improve x86 assembler.
> 5. Improve DWARF support.
> 6. Improve gold.
> 7. Improve rx support.
> 8. Improve sparc support.
> 9. Add xgate support.
>
> Changes from binutils 2.22.52.0.1:
>
> 1. Update from binutils 2012 0424.
> 2. Support Intel HLE and RTM extension.
> 3. Add NACL support.
> 4. Fix -Bsymbolic with protected function pointer.  PR 13880.
> 5. Fix an IFUNC regression.  PR 13817.
> 6. Fix x86 NOP fill regression.  PR 13675.
> 7. Fix a linker regression.  PR 13991.
> 8. Fix dangling global hidden symbol in symtab.  PR 13621.
> 9. Fix objcopy, strip and ld for --emit-relocs.  PR 13947.
> 10. Improve gold.
> 11. Improve mach support.
> 12. Improve vms support.
> 13. Improve windows support.
> 14. Improve arm support.
> 15. Improve avr support.
> 16. Improve mips support.
> 17. Improve ppc support.
> 18. Improve rx support.
> 19. Improve s390 support.
> 20. Improve sh support.
> 21. Improve sparc support.
> 22. Improve tile support.
>
> Changes from binutils 2.22.51.0.1:
>
> 1. Update from binutils 2012 0131.
> 2. Add x32 support to gold.
> 3. Support linker arch-depedent fill.  PR 13616.
> 4. Add i386 NACL support to x86 assembler.
> 5. Add fake zero displacement for .d8 and .d32 suffixes to x86 assembler.
> 6. Add vmfunc support to x86 assembler/disassembler.
> 7. Support >2GB archive member.  PR 13534.
> 8. Support R_X86_64_PC32 relocation for PIC on x32.  PR 13581.
> 9. Fix LTO linker with --start-group and archive.  PR 12758.
> 10. Fix linker with --build-id.  PR 12451.
> 11. Improve linker dead code dependency removal on DSO.  PR 12772.
> 12. Improve demangler.
> 13. Fix elf64-x86-64.c build with GCC 4.7.
> 14. Avoid linker -z text crash.  PR 13468.
> 15. Avoid readelf crash.  PR 13622.
> 16. Avoid nm crash on --size-sort --no-sort.  PR 13593.
> 17. Fix linker COFF SECREL32 relocation support.  PR 13491.
> 18. Improve gold.
> 19. Improve mach support.
> 20. Improve arm support.
> 21. Improve avr support.
> 22. Improve hppa support.
> 23. Improve m68k support.
> 24. Improve mips support.
> 25. Improve ppc support.
> 26. Improve rl78 support.
> 27. Improve rx support.
>
> Changes from binutils 2.21.53.0.2:
>
> 1. Update from binutils 2011 1118.
> 2. Fix ar --plugin on archive with mixed IR/non-IR objects.  PR 13298.
> 3. Preserve the maximum alignment and size for common symbols.  PR 13250.
> 4. Fix LTO linker with -as-needed.  PR 13287.
> 5. Fix --plugin support on thin archive.  PR 13257.
> 6. Fix LTO linker on thin archive.  PR 13183.
> 7. Fix --plugin slim object support on archive.  PR 13278.
> 8. Support LDPR_PREVAILING_DEF_IRONLY_EXP in linker plugin.  PR 13229.
> 9. Don't make make IR symbols dynamic.  PR 13244.
> 10. Fix LTO linker with --as-needed.  PR 13201.
> 11. Properly handle 2 IR symbols with the same comdat key.  PR 13066.
> 12. Keep .debug_types sections with linker garbage collection.  PR 13233.
> 13. Fix -ffunction-sections -Wl,--gc-sections failure with symbol
> versioning.  PR 13195.
> 14. Improve linker garbage collection support.  PR 13177.
> 15. Remove symbols hidden by version scripts with --gc-sections.  PR 12975.
> 16. Remove unnecessary GOT relocation created for IFUNC.  PR 13178.
> 17. Move IRELATIVE relocations to the end.  PR 13302.
> 18. Avoid readelf core dump.  PR 13219.
> 19. Check zero address size when dumping DWARF sections.  PR 13196.
> 20. Remove the group section if all members are removed.  PR 13180.
> 21. Support R_X86_64_64 and R_X86_64_RELATIVE64 relocations for x32.
> PR 13082.
> 22. Add Adapteva Epiphany support.
> 23. Add Renesas RL78 support.
> 24. Improve gold.
> 25. Improve mach-o support.
> 26. Improve alpha support.
> 27. Improve arm support.
> 28. Improve hppa support.
> 29. Improve mips support.
> 30. Improve ppc support.
> 31. Improve rx support.
> 32. Improve sparc support.
>
> Changes from binutils 2.21.53.0.1:
>
> 1. Update from binutils 2011 0804.
> 2. Add Intel K1OM support.
> 3. Allow R_X86_64_64 relocation for x32 and check x32 relocation overflow.
> PR ld/13048.
> 4. Support direct call in x86-64 assembly code.  PR gas/13046.
> 5. Add ia32 Google Native Client support.
> 6. Add .debug_macro section support.
> 7. Improve gold.
> 8. Improve VMS support.
> 9. Improve arm support.
> 10. Improve hppa support.
> 11. Improve mips support.
> 12. Improve mmix support.
> 13. Improve ppc support.
>
> Changes from binutils 2.21.52.0.2:
>
> 1. Update from binutils 2011 0716.
> 2. Fix LTO linker bugs.  PRs 12982/12942.
> 3. Fix rorx support in x86 assembler/disassembler for AVX Programming
> Reference (June, 2011).
> 4. Fix an x86-64 ELFOSABI linker regression.
> 5. Update ELFOSABI_GNU support.  PR 12913.
> 6. Fix a linker regression with prelink support.  PR 12921.
> 7. Add unwind info to x86 PLT section.  PR 12570.
> 8. Support x32 core files.
> 9. Support native x32 linker.
> 10. Fix linker --gc-sections on note sections.  PR 12851.
> 11. Avoid linker crash on bad input.  PR 12887.
> 12. Add section flags in linker script.
> 13. Improve elf linker -z option support.
> 14. Fix nm on compressed debug sections.  PR 12983.
> 15. Fix an ar bug.  PR 12558.
> 16. Fix an ia64 linker regression.  PR 12978.
> 17. Improve gold.
> 18. Improve VMS support.
> 19. Add TILE-Gx/TILEPro support.
> 20. Improve alpha support.
> 21. Improve avr support.
> 22. Improve mips support.
> 23. Improve arm support.
> 24. Improve ppc support.
> 25. Improve sh support.
> 26. Improve TIC6X support.
>
> Changes from binutils 2.21.52.0.1:
>
> 1. Update from binutils 2011 0610.
> 2. Support AVX Programming Reference (June, 2011)
> 3. Allow R_X86_64_64 relocations in SEC_DEBUGGING sections when building
> x32 shared libraries.  Used to build kernel x32 vDSO.
> 4. Fix linker --gc-sections on note sections.  PR 12851.
> 5. Update readelf to handle binaries containing corrupt version
> information.  PR 12855.
> 6. Improve gold.
> 7. Improve VMS support.
> 8. Improve mips support.
>
> Changes from binutils 2.21.51.0.9:
>
> 1. Update from binutils 2011 0608.
> 2. Fix an x86 linker regression. PRs 12833/12837/12859.
> 3. Fix an x86-64 large model TLS linker bug.  PR 12809.
> 4. Fix LTO bugs.  PRs 12758/12760.
> 5. Add a new linker switch, -plugin-save-temps.
> 6. Fix an linker bug for warning on common symbol in archive.
> 7. Fix warning support when building shared library.  PR 12761.
> 8. Reduce linker memory usage when linking many small object files.
> PR 12682.
> 9. Fix a thin archive bug.  PR 12710.
> 10. Fix a TLS linker bug.  PR 12763.
> 11. Improve gold.
> 12. Improve DWARF dump support.
> 13. Improve XCOFF support.
> 14. Improve arm support.
> 15. Improve cris support.
> 16. Improve ia64 ILP32 support.
> 17. Improve mips support.
> 18. Improve ppc support.
> 19. Improve rx support.
> 20. Improve s390 support.
> 21. Improve tic30 support.
> 22. Improve tic6x support.
> 23. Improve v850 support.
>
> Changes from binutils 2.21.51.0.8:
>
> 1. Update from binutils 2011 0507.
> 2. Improve LTO bfd linker.  PRs 12365/12696/12672
> 3. Fix a linker regression with constructor attribute in C++.  PR 12730.
> 4. Warn relocation in readonly section when creating a shared object.
> 5. Remove empty output sections.  PR 12718.
> 6. Remove DT_TEXTREL with local IFUNC symbols.  PR 12694.
> 7. Properly set ELFOSABI_LINUX for STB_GNU_UNIQUE. PR 10549.
> 8. Fix objcopy on unusual input.  PR 12632.
> 9. Fix an ar regression.  PR 12720.
> 10  Avoid linker crash on bad linker input.
> 11. Fix a linker script regression.  PR 12726.
> 12. Support new GNU DWARF extensions.
> 13. Initial support for SystemTap note sections.
> 14. Add --dwarf-start and --dwarf-end to readelf and objdump.
> 15. Disable 3dnow and 3dnowa for bdver1 in x86 assembler.
> 16. Improve gold.
> 17. Improve VMS support.
> 18. Improve arm support.
> 19. Improve mips support.
> 20. Improve ppc support.
> 21. Improve s390 support.
> 22. Improve tic6x support.
>
> Changes from binutils 2.21.51.0.7:
>
> 1. Update from binutils 2011 0408.
> 2. Fix x32 TLS linker bug.
> 3. Enable .quad directive in x32 assembler.
> 4. Fix an assembler regression.  PRs 12569/12589.
> 5. Add --size-check= assembler option to issue a warning, instead of an
> error, on bad ELF .size directive.
> 6. Fix an ia32 linker bug with TLS/PIE.  PR 12654.
> 7. Fix Intel L1OM linker library search path.
> 8. Fix a linker buffer overflow on malformed inputs.  PR 12613.
> 9. Check corrupted symtab in nm/readelf.  PR 12639.
> 10. Avoid objcopy crash on archive with unknown objects.  PR 12632.
> 11. Fix "ar -t".  PR 12590.
> 12. Fix many memory leaks.
> 13. Improve DWARF support.
> 14. Improve gold.
> 15. Improve VMS support.
> 16. Improve Windows support.
> 17. Improve alpha support.
> 18. Improve arm support.
> 19. Improve avr support.
> 20. Improve ppc support.
> 21. Improve sparc support.
> 22. Improve tic6x support.
>
> Changes from binutils 2.21.51.0.6:
>
> 1. Update from binutils 2011 0306.
> 2. Supprt x32 TLS IE->LE transition.
> 3. Change x32 library directory from /lib32 to /libx32.
> 4. Improve LTO linker support.  Fix PRs 12439/12314/12248/12430.
> 5. Improve linker plugin support.
> 6. Fix an ar bug.  PR 12513.
> 7. Properly generate nops for ia32. PR 6957.
> 8. Improve readelf DT_GNU_HASH support.  PR 12523.
> 9. Improve readelf on invalid input.  PR 12467.
> 10. Update ELF assembler to issue an error on invalid  .size directive.
> PR 12519,
> 11. Properly handle PT_DYNAMIC segment with zero size sections.  PR 12516.
> 12.  Add a new linker option, --verbose=2, to report plugin symbol
> status.
> 13. Properly handle entry symbols in linker LTO support.  PR 12507.
> 14. Improve gold.
> 15. Improve arm support.
> 16. Improve bfin support.
> 17. Improve mips support.
> 18. Improve ppc support.
>
> Changes from binutils 2.21.51.0.5:
>
> 1. Update from binutils 2011 0118.
> 2. Fix x32 (ILP32) support.  Renamed assembler option to --x32.  It
> can create working static and dynamic x32 executables.
> 3. Add BMI and TBM new instruction support.
> 4. Fix x86 disassembler to properly display sign-extended byte.
> 5. Improve IFUNC linker support.  PRs 12366/12371.
> 6. Fix readelf bug on archive. PR 12408.
> 7. Fix a assembler when compressing empty debug sections.  PR 12409.
> 8. Fix a warning symbol linker bug.  PR 12339.
> 9. Fix a duplicated assert message linker bug.  PR 12380.
> 10. Fix plugin linker build.  PR 12391.
> 11. Fix a plugin linker crash.  PR 12364.
> 12. Improve plugin linker.
> 13. Improve gold.
> 14. Improve arm support.
> 15. Improve mips support.
> 16. Improve rx support.
>
> Changes from binutils 2.21.51.0.4:
>
> 1. Update from binutils 2011 0104.
> 2. Add ILP32 support:
>
> http://www.kernel.org/pub/linux/devel/binutils/ilp32/abi.pdf
>
> to Linux/x86-64.
> 3. Prevent the Linux x86-64 kernel build failure and remove
> __ld_compatibility support.  PR 12356.
> 4. Improve gold.
> 5. Improve Windows support.
> 6. Improve hppa support.
> 7. Improve mips support.
>
> Changes from binutils 2.21.51.0.3:
>
> 1. Update from binutils 2010 1217.
> 2. Fix the Linux relocatable kernel build.  PR 12327.
> 3. Improve mips support.
>
> Changes from binutils 2.21.51.0.2:
>
> 1. Update from binutils 2010 1215.
> 2. Add BFD linker support for placing input .ctors/.dtors sections in
> output .init_array/.fini_array section.  Add SORT_BY_INIT_PRIORITY.  The
> benefits are
>    a. Avoid output .ctors/.dtors section in executables and shared
>       libraries.
>    b. Allow mixing input .ctors/.dtors sections with input
>    .init_array/.fini_array sectiobs.  GCC PR 46770.
> 3. Add BFD linker support for "ld -r" on mixed IR/non-IR objects. Add
> the new ELF section type SHT_GNU_OBJECT_ONLY (0x6ffffff8). See
>
> http://sourceware.org/bugzilla/show_bug.cgi?id=12291
>
> 4. Update BFD linker to accept -flto and -flto-partition= for GCC LTO
> option compatibility.
> 5. Fix BFD linker to avoid touching uncompressed section content when
> relocating DWARF debug sections for errror reporting.
> 6. Mark .gnu.lto_* sections with SHF_EXCLUDE.
> 7. Add --target option to ar.
> 8. Improve gold.
> 9. Improve AIX support.
> 10. Improve Windows support.
> 11. Improve mips support.
>
> Changes from binutils 2.21.51.0.1:
>
> 1. Update from binutils 2010 1206.
> 2. Fix BFD and GOLD linker for compressed debug section support.
> 3. Fix BFD linker plugin support.  PR ld/12246, ld/12247, ld/12248,
> ld/12277, ld/12288 and ld/12289.
> 4. Update BFD linker to group .text.exit, text.startup and .text.hot
> sections.
> 5. Fix linker for W_EH_PE_datarel handling.  PR ld/12253.
> 6. Fix array access bug in readelf/elfedit.  PR binutils/11742 and
> binutils/12235.
> 7. Support dumping GDB .gdb_index section.
> 8. Install plugin-api.h.
> 9. Improve gold.
> 10. Improve Solaris support.
> 11. Improve VMS support.
> 12. Improve Windows support.
> 13. Improve arm support.
> 14. Improve bfin support.
> 15. Improve mips support.
> 16. Improve s390 support.
> 17. Improve z80 support.
>
> Changes from binutils 2.20.51.0.12:
>
> 1. Update from binutils 2010 1110.
> 2. Fix ld plugin support.  PRs lto/46291 and lto/46319.
> 3. Fix x86 assembler to properly fold _GLOBAL_OFFSET_TABLE_ in Intel
> syntax.  PR 12186.
> 4. Update assembler to ensure that group signature symbols have the name
> of the group.
> 5. Avoid unnecessary relaxation in assembler.  PR 12049.
> 6. Update linker NOLOAD processing.
> 7. Update linker not to include archive members when symbols therein have
> already been defined.  PR 12001.
> 8. Change objdump to display compressed section names without 'z'.
> 9. Improve gold.
> 10. Improve Solaris support.
> 11. Improve VMS support.
> 12. Improve Windows support.
> 13. Improve arm support.
> 14. Improve cr16 support.
> 15. Improve mips support.
> 16. Improve ppc support.
> 17. Improve tic6x support.
>
> The file list:
>
> 1. binutils-2.24.51.0.1.tar.bz2.  Source code.
>
> The primary sites for the beta Linux binutils are:
>
> 1. http://www.kernel.org/pub/linux/devel/binutils/
>
> It is also available as linux/release/2.24.51.0.1 tag at
>
> https://sourceware.org/git/?p=binutils-gdb.git;a=summary
>
> Thanks.
>
>
> H.J. Lu
> hjl.tools@gmail.com
> 11/08/2013



-- 
H.J.

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