-*- text -*-
+* The readelf tool now has a -L or --lint or --enable-checks option which turns
+ on warning messages about possible problems with the file(s) being examined.
+ These checks include things like zero-sized sections, which are allowed by
+ the ELF standard but which nevertheless might be of concern if the user
+ was expecting them to actually contain something.
+
+Changes in 2.34:
+
+* Binutils now supports debuginfod, an HTTP server for distributing
+ ELF/DWARF debugging information as well as source code. When built with
+ debuginfod, readelf and objdump can automatically query debuginfod
+ servers for separate debug files when they otherwise cannot be found.
+ To build binutils with debuginfod, pass --with-debuginfod to configure.
+ This requires libdebuginfod, the debuginfod client library. debuginfod
+ is distributed with elfutils, starting with version 0.178. For more
+ information see https://sourceware.org/elfutils.
+
+* Add --output option to the "ar" program. This option can be used to specify
+ the output directory when extracting members from an archive.
+
+* Add --keep-section option to objcopy and strip. This option keeps the
+ specified section from being removed.
+
+ * Add visualization of jumps inside a function by drawing an ascii character
+ graph between the address and the disassembler column. Enabled via the
+ --visualize-jumps command line option for objdump. Currently supported by
+ the x86, x86_64, and ARM targets. The output looks something like this:
+
+ c6: | | \----------> be 00 00 00 00 mov $0x0,%esi
+ cb: | | /----> 48 8b 3d 00 00 00 00 mov 0x0(%rip),%rdi # d2 <main+0xd2>
+ d2: | | | 31 c0 xor %eax,%eax
+ d4: | | | /-- e8 00 00 00 00 callq d9 <main+0xd9>
+ d9: | | | \-> bf 02 00 00 00 mov $0x2,%edi
+ de: | +-----------|----- e8 00 00 00 00 callq e3 <main+0xe3>
+ e3: | \-----------|----> 48 89 da mov %rbx,%rdx
+ e6: | | be 00 00 00 00 mov $0x0,%esi
+ eb: | \----- eb de jmp cb <main+0xcb>
+ ed: \-------------------> 48 8b 16 mov (%rsi),%rdx
+
+ Additional arguments to the --visualize-jumps option add colors to the
+ output.
+
+Changes in 2.33:
+
+* Add --source-comment[=<txt>] option to objdump which if present,
+ provides a prefix to source code lines displayed in a disassembly.
+
+* Add --set-section-alignment <section-name>=<align> option to objcopy to allow
+ the changing of section alignments.
+
+* Add --verilog-data-width option to objcopy for verilog targets to control
+ width of data elements in verilog hex format.
+
+* Add support for the Armv8.1-M Mainline and M-profile Vector Extension (MVE)
+ instructions.
+
+* The separate debug info file options of readelf (--debug-dump=links
+ and --debug-dump=follow) and objdump (--dwarf=links and
+ --dwarf=follow-links) will now display and/or follow multiple links if
+ more than one are present in a file. (This usually happens when gcc's
+ -gsplit-dwarf option is used).
+
+ In addition objdump's --dwarf=follow-links now also affects its other
+ display options, so that for example, when combined with --syms it will
+ cause the symbol tables in any linked debug info files to also be
+ displayed. In addition when combined with --disassemble the --dwarf=
+ follow-links option will ensure that any symbol tables in the linked
+ files are read and used when disassembling code in the main file.
+
+ * Add support for dumping types encoded in the Compact Type Format
+ to objdump and readelf.
+
+Changes in 2.32:
+
* The addr2line, c++filt, nm and objdump tools now have a limit on the
maximum amount of recursion that is allowed whilst demangling strings.
The value for this limit is defined by the DEMANGLE_RECRUSE_LIMIT
3A1000 processor, The -march=loongson3a is an alias of -march=gs464 for
compatibility.
+* The size tool now has a new output format '--format=GNU' or '-G'. The
+ results are displayed in a similar manor to the default berkeley layout,
+ except read-only data is counted in the data column, not the text column.
+ Additionally the total is only included once.
+
Changes in 2.31:
* Add support for disassembling netronome Flow Processor (NFP) firmware files.
and/or local symbols only. They now also support long options.
\f
-Copyright (C) 2012-2019 Free Software Foundation, Inc.
+Copyright (C) 2012-2020 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 / deliverable / binutils-gdb.git / blobdiff