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Appendix B. Changes in Version 8.1
The sections below document features and compatibility changes introduced in Red Hat Developer Toolset 8.1.
B.1. Changes in GCC
Red Hat Developer Toolset 8.1 is distributed with GCC 8.3.1, which provides numerous bug fixes over the version included in the previous release of Red Hat Developer Toolset.
Changes Since Red Hat Developer Toolset 8.0
This release contains numerous bug fixes added since the release of GCC included in Red Hat Developer Toolset 8.0.
B.2. Changes in GDB
Red Hat Developer Toolset 8 is distributed with GDB 8.2, which provides a number of enhancements over the version included in the previous release of Red Hat Developer Toolset.
Changes Since Red Hat Developer Toolset 8.0
The following features have been added since the release of GDB included in Red Hat Developer Toolset 8.0:
GDB and GDBserver can now access these additional registers of the POWER8 procesor of the IBM POWER Systems architecture:
PPR,DSCR,TAR,EBB/PMUregisters, andHTMregisters.ImportantGDB from Red Hat Developer Toolset does not support use on this architecture on Red Hat Enterprise Linux 6.
B.3. Changes in binutils
Red Hat Developer Toolset 8 is distributed with binutils 2.30, which provides a number of changes over the version included in the previous release of Red Hat Developer Toolset.
Changes Since Red Hat Developer Toolset 8.0
The following features have been changed since the release of binutils included in Red Hat Developer Toolset 8.0:
- Previously, using the GOLD liner was experimentally enabled for the IBM POWER Systems architecture. Because the linker did was not fully functional, it has been disabled in Red Hat Developer Toolset 8.
B.4. Changes in elfutils
Red Hat Developer Toolset 8 is distributed with elfutils 0.176, which provides a number of enhancements over the version included in the previous release of Red Hat Developer Toolset.
Changes Since Red Hat Developer Toolset 8.0
The following features have been added since the release of elfutils included in Red Hat Developer Toolset 8.0:
- Various bugs related to multiple CVEs have been fixed.
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The
libdwlibrary has been extended with thedwelf_elf_begin()function which is a variant ofelf_begin()that handles compressed files. -
The
eu-readelftool now recognizes and prints out GNU Property notes and GNU Build Attribute ELF Notes with the--notesor-noptions. -
A new
--reloc-debug-sections-onlyoption has been added to theeu-striptool to resolve all trivial relocations between debug sections in place without any other stripping. This functionality is relevant only forET_RELfiles in certain circumstances.
B.5. Changes in Valgrind
Red Hat Developer Toolset 8 is distributed with Valgrind 3.14.0, which provides a number of enhancements over the version included in the previous release of Red Hat Developer Toolset.
Changes Since Red Hat Developer Toolset 8.0
The following features have been added since the release of Valgrind included in Red Hat Developer Toolset 8.0:
- Support for the z13 instruction set of the IBM Z architecture has been added.
- Support for vector instructions of the IBM POWER Systems architecture has been improved.
Valgrind from Red Hat Developer Toolset does not support use on these architectures on Red Hat Enterprise Linux 6.
B.6. Changes in containers
The devtoolset-8-dockerfiles package has been removed. Updating from Red Hat Developer Toolset version 8.0 to 8.1 removes this package on systems where it is already installed.