-*- text -*-
-* Add a new command line option, -Ttext-segment ADDR, for ELF targets
+* cr16c support removed.
+
+Changes in 2.33:
+
+* Add command-line option --no-print-map-discarded.
+
+* The Cortex-A53 Erratum 843419 workaround now supports a choice of which
+ workaround to use. The option --fix-cortex-a53-843419 now takes an
+ optional argument --fix-cortex-a53-843419[=full|adr|adrp] which can be
+ used to force a particular workaround to be used. See --help for AArch64
+ for more details.
+
+* Add target handlers for AArch64 for ELF GNU program properties.
+
+* Add support for GNU_PROPERTY_AARCH64_FEATURE_1_BTI in ELF GNU program
+ properties in the AArch64 ELF linker.
+
+* Add support for GNU_PROPERTY_AARCH64_FEATURE_1_PAC in ELF GNU program
+ properties in the AArch64 ELF linker.
+
+* Add -z force-bti for AArch64 to enable GNU_PROPERTY_AARCH64_FEATURE_1_BTI
+ on output while warning about missing GNU_PROPERTY_AARCH64_FEATURE_1_BTI
+ on inputs and use PLTs protected with BTI.
+
+* Add -z pac-plt for AArch64 to pick PAC enabled PLTs.
+
+Changes in 2.32:
+
+* Report property change in linker map file when merging GNU properties.
+
+* Add support for the C-SKY processor series.
+
+* -t now doesn't report members within archives, unless -t is given twice.
+ A single -t is now more useful when generating a list of files that should be
+ packaged for a linker bug report. For example:
+ gcc hello.c -save-temps -Wl,-t | xargs realpath | sort | uniq > files
+ tar cJf test.tar.xz `cat files`
+
+Changes in 2.31:
+
+* Speed up direct linking with DLLs for Cygwin and Mingw targets.
+
+* Add a configure option --enable-separate-code to decide whether
+ -z separate-code should be enabled in ELF linker by default. Default
+ to yes for Linux/x86 targets. Note that -z separate-code can increase
+ disk and memory size.
+
+Changes in 2.30:
+
+* Add -z separate-code to generate separate code PT_LOAD segment.
+
+* Add "-z undefs" command-line option as the inverse of the "-z defs" option.
+
+* Add -z globalaudit command-line option to force audit libraries to be run
+ for every dynamic object loaded by an executable - provided that the loader
+ supports this functionality.
+
+* Tighten linker script grammar around file name specifiers to prevent the use
+ of SORT_BY_ALIGNMENT and SORT_BY_INIT_PRIORITY on filenames. These would
+ previously be accepted but had no effect.
+
+* The EXCLUDE_FILE directive can now be placed within any SORT_* directive
+ within input section lists.
+
+Changes in 2.29:
+
+* Support for -z shstk in the x86 ELF linker to generate
+ GNU_PROPERTY_X86_FEATURE_1_SHSTK in ELF GNU program properties.
+
+* Add support for GNU_PROPERTY_X86_FEATURE_1_SHSTK in ELF GNU program
+ properties in the x86 ELF linker.
+
+* Add support for GNU_PROPERTY_X86_FEATURE_1_IBT in ELF GNU program
+ properties in the x86 ELF linker.
+
+* Support for -z ibtplt in the x86 ELF linker to generate IBT-enabled
+ PLT.
+
+* Support for -z ibt in the x86 ELF linker to generate IBT-enabled
+ PLT as well as GNU_PROPERTY_X86_FEATURE_1_IBT in ELF GNU program
+ properties.
+
+* Add support for ELF SHF_GNU_MBIND and PT_GNU_MBIND_XXX.
+
+* Add support for ELF GNU program properties.
+
+* Add support for the Texas Instruments PRU processor.
+
+* When configuring for arc*-*-linux* targets the default linker emulation will
+ change if --with-cpu=nps400 is used at configure time.
+
+* Improve assignment of LMAs to orphan sections in some edge cases where a
+ mixture of both AT>LMA_REGION and AT(LMA) are used.
+
+* Orphan sections placed after an empty section that has an AT(LMA) will now
+ take an load memory address starting from LMA.
+
+* Section groups can now be resolved (the group deleted and the group members
+ placed like normal sections) at partial link time either using the new linker
+ option --force-group-allocation or by placing FORCE_GROUP_ALLOCATION into the
+ linker script.
+
+Changes in 2.28:
+
+* The EXCLUDE_FILE linker script construct can now be applied outside of the
+ section list in order for the exclusions to apply over all input sections in
+ the list.
+
+* Add support for the RISC-V architecture.
+
+* The command-line option --no-eh-frame-hdr can now be used in ELF based
+ linkers to disable the automatic generation of .eh_frame_hdr sections.
+
+* Add --in-implib=<infile> to the ARM linker to enable specifying a set of
+ Secure Gateway veneers that must exist in the output import library specified
+ by --out-implib=<outfile> and the address they must have. As such,
+ --in-implib is only supported in combination with --cmse-implib.
+
+* Extended the --out-implib=<file> option, previously restricted to x86 PE
+ targets, to any ELF based target. This allows the generation of an import
+ library for an ELF executable, which can then be used by another application
+ to link against the executable.
+
+Changes in 2.27:
+
+* Add a configure option --enable-relro to decide whether -z relro should
+ be enabled in ELF linker by default. Default to yes for all Linux
+ targets except FRV, HPPA, IA64 and MIPS. Note that -z relro can increase
+ disk and memory size.
+
+* Support for -z noreloc-overflow in the x86-64 ELF linker to disable
+ relocation overflow check.
+
+* Add -z common/-z nocommon options for ELF targets to control whether to
+ convert common symbols to the STT_COMMON type during a relocatable link.
+
+* Support for -z nodynamic-undefined-weak in the x86 ELF linker, which
+ avoids dynamic relocations against undefined weak symbols in executable.
+
+* The NOCROSSREFSTO command was added to the linker script language.
+
+* Add --no-apply-dynamic-relocs to the AArch64 linker to do not apply link-time
+ values for dynamic relocations.
+
+Changes in 2.26:
+
+* Add --fix-stm32l4xx-629360 to the ARM linker to enable a link-time
+ workaround for a bug in the bus matrix / memory controller for some of
+ the STM32 Cortex-M4 based products (STM32L4xx)
+
+* Add a configure option --enable-compressed-debug-sections={all,ld} to
+ decide whether DWARF debug sections should be compressed by default.
+
+* Add support for the ARC EM/HS, and ARC600/700 architectures.
+
+* Experimental support for linker garbage collection (--gc-sections)
+ has been enabled for COFF and PE based targets.
+
+* New command-line option for ELF targets to compress DWARF debug
+ sections, --compress-debug-sections=[none|zlib|zlib-gnu|zlib-gabi].
+
+* New command-line option, --orphan-handling=[place|warn|error|discard], to
+ adjust how orphan sections are handled. The default is 'place' which gives
+ the current behaviour, 'warn' and 'error' issue a warning or error
+ respectively when orphan sections are found, and 'discard' will discard all
+ orphan sections.
+
+* Add support for LLVM plugin.
+
+* Add --print-memory-usage option to report memory blocks usage.
+
+* Add --require-defined option, it's like --undefined except the new symbol
+ must be defined by the end of the link.
+
+Changes in 2.25:
+
+* PE binaries now once again contain real timestamps by default. To disable
+ the inclusion of a timestamp in a PE binary, use the --no-insert-timestamp
+ command-line option.
+
+* Replace support for openrisc and or32 with support for or1k.
+
+* Add support for the --build-id command-line option to COFF based targets.
+
+* x86/x86_64 pe-coff now supports the --build-id option.
+
+* Add support for the Andes NDS32.
+
+Changes in 2.24:
+
+* Add LOG2CEIL() builtin function to the linker script language
+
+* Add support for the Texas Instruments MSP430X processor.
+
+* Add support for Altera Nios II.
+
+* Add support for the V850E3V5 architecture.
+
+* Add support for the Imagination Technologies Meta processor.
+
+* --enable-new-dtags no longer generates old dtags in addition to new dtags.
+
+* Remove linker support for MIPS ECOFF targets.
+
+* Add ALIGN_WITH_INPUT to the linker script language to force the alignment of
+ an output section to use the maximum alignment of all its input sections.
+
+Changes in 2.23:
+
+* Enable compressed debug section feature for x86/x86_64 pe-coff.
+
+* Add support for the 64-bit ARM architecture: AArch64.
+
+* Added SORT_NONE to the linker script language to disable section sorting.
+
+* Add a linker-provided symbol when producing ELF output, '__ehdr_start'
+ to point to the ELF file header (and nearby program headers) in the
+ program's memory image.
+
+* Add support for S12X processor.
+
+* Add support for the VLE extension to the PowerPC architecture.
+
+* Add support for the Freescale XGATE architecture.
+
+* Add option -f FILE on AIX (for response file).
+
+* Add support for the Renesas RL78 architecture.
+
+* Add support for the Adapteva EPIPHANY architecture.
+
+Changes in 2.22:
+
+* --copy-dt-needed-entries is no longer enabled by default. Instead
+ --no-copy-dt-needed-entries is the default.
+
+* INPUT_SECTION_FLAGS has been added to the linker script language
+ to allow selection of input sections by section header section flags.
+
+* Add support for the Tilera TILEPro and TILE-Gx architectures.
+
+* Added SORT_BY_INIT_PRIORITY to the linker script language to permit
+ sorting sections by numerical value of the GCC init_priority attribute
+ encoded in the section name.
+
+Changes in 2.21:
+
+* Linker script expression evaluation is somewhat more sane. This may
+ break scripts that depend on quirks of the old expression evaluation.
+
+* Turn off underscoring for x86_64 PE+-COFF targets. For old behavior the
+ option --enable-leading-mingw64-underscores can be used on configure of
+ bfd.
+
+* Add support for the TMS320C6000 (TI C6X) processor family.
+
+* --add-needed renamed to --copy-dt-needed-entries in order to avoid confusion
+ with --as-needed option.
+
+* Extend .def file syntax by '== <ID>' for imports and exports. This allows
+ to alias the import/export table name written in PE image.
+
+* Add --exclude-all-symbols option to PE based linkers. This prevents all
+ symbols from automatically being exported.
+
+* Add support for the Renesas RX processor.
+
+* Add support for alpha-vms target.
+
+Changes in 2.20:
+
+* GNU/Linux targets now support the STB_GNU_UNIQUE symbol binding. This is a
+ GNU extension to the standard set of ELF symbol bindings. The binding will
+ be passed on to the dynamic linker which will make sure that in the entire
+ process there is just one symbol with the given name and type in use.
+
+* PE targets now support a GNU extension to allow the alignment of common
+ common symbols to be specified. This support uses custom options in
+ the .drectve section, which will be disregarded by the native tools.
+
+* PE targets now add primitive support for ELF version scripts; symbols
+ are not versioned, but the local and global symbol visibility directives
+ are respected when filtering symbols in auto-export mode.
+
+* New option --no-export-dynamic to undo the effect of the -E and
+ --export-dynamic options.
+
+* ELF: --warn-alternate-em option to warn if an object has alternate
+ ELF machine code.
+
+* New script function REGION_ALIAS to add alias names to memory regions.
+
+* PE targets no longer make use of the long section names PE extension to
+ the COFF format when generating executable images, by default. The old
+ (slightly non-conformant) behaviour can still be invoked by using the
+ new '--enable-long-section-names' command-line option. It is also enabled
+ automatically in the presence of un-stripped debug information, as GDB
+ needs to be able to find the debug info sections by their full names.
+
+* For GNU/Linux systems the linker will now avoid processing any relocations
+ made against symbols of the STT_GNU_IFUNC type and instead emit them into
+ the resulting binary for processing by the loader.
+
+* --as-needed now links in a dynamic library if it satisfies undefined
+ symbols in regular objects, or in other dynamic libraries. In the
+ latter case the library is not linked if it is found in a DT_NEEDED
+ entry of one of the libraries already linked.
+
+* Add a new command-line option, -Ttext-segment ADDR, for ELF targets
to set the address of the first byte of the text segment.
+* Add support for Sunplus score architecture.
+
* Add new option --use-nul-prefixed-import-tables to ld for PE targets to
allow fallback to old import table generation with null element prefix.
* Add support for Lattice Mico32 (lm32) architecture.
-* Add CR16 ELF --embedded-relocs (used to embedded relocations into binaries
+* Add CR16 ELF --embedded-relocs (used to embedded relocations into binaries
for Embedded-PIC code) option.
* Add to the PE/PE+ targets the support of two different kinds of
direction of sorting.
* The M68K linker now supports multiple GOT generation schemes controlled via
- the --got=<type> command line option.
+ the --got=<type> command-line option.
* The ARM EABI linker will now generate stubs for function calls to symbols
that are too far away. The placement of the stubs is controlled by a new
- linker command line option: --stub-group-size=N.
+ linker command-line option: --stub-group-size=N.
Changes in 2.18:
* -l:foo now searches the library path for a filename called foo,
without converting it to libfoo.a or libfoo.so.
-* Add a new command line option '--default-script=FILE' or '-dT FILE'
+* Add a new command-line option '--default-script=FILE' or '-dT FILE'
which specifies a replacement for the built in, default linker
script.
language to permit sorting sections by section name or section
maximum alignment.
-* Added a new linker command line switch, --sort-section name|alignment,
+* Added a new linker command-line switch, --sort-section name|alignment,
to sort sections by section name or maximum alignment.
* ELF: --add-needed/--no-add-needed options to control if a DT_NEEDED tag
* Support for the sh-symbianelf target added.
-* A new linker command line switch has been added which allows the hash table
+* A new linker command-line switch has been added which allows the hash table
size to be set to a suitable prime value near to its argument. This switch
is --hash-size=<NUMBER>. Also if the switch --reduce-memory-overheads is
used, and --hash-size has not been used, then the default value will be set
* TI C54x support, by Timothy Wall.
-* Added command line switch --section-start to set the start address of any
+* Added command-line switch --section-start to set the start address of any
specified section.
* Added ability to emit full relocation information in linked executables,
other utilities should work on Risc/Ultrix and Irix.
\f
+Copyright (C) 2012-2019 Free Software Foundation, Inc.
+
+Copying and distribution of this file, with or without modification,
+are permitted in any medium without royalty provided the copyright
+notice and this notice are preserved.
+
Local variables:
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projects / deliverable / binutils-gdb.git / blobdiff