-*- text -*-
+* Add libdep plugin, for linking dependencies of static libraries that
+ were recorded by ar in the __.LIBDEP archive member.
+
+* Add --error-handling-script=<NAME> command line option to allow a helper
+ script to be invoked when an undefined symbol or a missing library is
+ encountered. This option can be suppressed via the configure time
+ switch: --enable-error-handling-script=no.
+
+* Add -z lam-u48 to x86-64 ELF linker to generate LAM_U48 property.
+
+* Add -z lam-u57 to x86-64 ELF linker to enerate LAM_U57 property.
+
+* Add -z lam-u48-report=[none|warning|error] to report missing LAM_U48
+ property.
+
+* Add -z lam-u57-report=[none|warning|error] to report missing LAM_U57
+ property.
+
+* Add -z lam-report=[none|warning|error] to report missing LAM_U48 and
+ LAM_U57 properties.
+
+* Add -z x86-64-{baseline|v[234]} to the x86 ELF linker to mark
+ x86-64-{baseline|v[234]} ISA level as needed.
+
+* Add -z unique-symbol to avoid duplicated local symbol names.
+
+* The creation of PE format DLLs now defaults to using a more secure set of DLL
+ characteristics.
+
+* The linker now deduplicates the types in .ctf sections. The new
+ command-line option --ctf-share-types describes how to do this:
+ its default value, share-unconflicted, produces the most compact
+ output.
+
+* The linker now omits the "variable section" from .ctf sections by
+ default, saving space. This is almost certainly what you want
+ unless you are working on a project that has its own analogue
+ of symbol tables that are not reflected in the ELF symtabs.
+
+* Add support for the SHF_GNU_RETAIN ELF section flag.
+ This flag specifies that the section should not be garbage collected by the
+ linker.
+
+Changes in 2.35:
+
+* X86 NaCl target support is removed.
+
+* Add ELF linker command-line options, --export-dynamic-symbol and
+ --export-dynamic-symbol-list, to make symbols dynamic.
+
+* Add a configure option, --enable-textrel-check=[no|yes|warning|error],
+ to decide what ELF linker should do by default with DT_TEXTREL in an
+ executable or shared library. Default to yes for Linux/x86 targets.
+
+* The -Map=<filename> command line option has been extended so that if
+ <filename> is a directory then <filename>/<output-filename>.map will be
+ created.
+
+* Add a command-line option for ELF linker, --warn-textrel, to warn that
+ DT_TEXTREL is set in a position-independent executable or shared object.
+
+* Add command-line options --enable-non-contiguous-regions and
+ --enable-non-contiguous-regions-warnings.
+
+* Add command-line option --imagic for the pdp11-aout target to output format
+ IMAGIC (0411) for separate instruction and data spaces, and change the
+ default format option for pdp11-aout to be --omagic.
+
+* Relative pathnames in INPUT() and GROUP() directives in linker scripts are
+ searched relative to the directory of the linker script before other search
+ paths.
+
+* Add ELF linker command-line option `-z start-stop-visibility=...' to control
+ the visibility of synthetic `__start_SECNAME` and `__stop_SECNAME` symbols.
+
+* Add command-line option --dependency-file to write a Make-style dependency
+ file listing the input files consulted by the linker, like the files written
+ by the compiler's -M -MP options.
+
+Changes in 2.34:
+
+* The ld check for "PHDR segment not covered by LOAD segment" is more
+ effective, catching cases that were wrongly allowed by previous versions of
+ ld. If you see this error it is likely you are linking with a bad linker
+ script or the binary you are building is not intended to be loaded by a
+ dynamic loader. In the latter case --no-dynamic-linker is appropriate.
+
+* cr16c support removed.
+
+* Add support for z80-elf.
+
+* Add support for relocation of each byte or word of multibyte value to Z80
+ targets.
+
+* Add support for Zilog eZ80 (both ADL and Z80 mode) and Zilog Z180 CPUs.
+
+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:
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
+* 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.
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 Free Software Foundation, Inc.
+Copyright (C) 2012-2021 Free Software Foundation, Inc.
Copying and distribution of this file, with or without modification,
are permitted in any medium without royalty provided the copyright
projects / thirdparty / binutils-gdb.git / blobdiff