-Release 3.17.0 (?? ??? 202?)
+Release 3.17.0 (18 Mar 2021)
~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-3.17.0 is a feature release with many improvements and the usual collection
-of bug fixes.
+3.17.0 is a primarily a bug-fix release.
This release supports X86/Linux, AMD64/Linux, ARM32/Linux, ARM64/Linux,
PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux, MIPS32/Linux,
* ==================== CORE CHANGES ===================
-* DWARF version 5 support
+* DWARF version 5 support. Valgrind can now read DWARF version 5 debuginfo as
+ produced by GCC 11.
- - Valgrind can now read DWARF version 5 debuginfo as produced by GCC 11
+* Valgrind now supports debuginfod, an HTTP server for distributing ELF/DWARF
+ debugging information. When a debuginfo file cannot be found locally,
+ Valgrind is able to query debuginfod servers for the file using its
+ build-id. See the user manual for more information about debuginfod support.
* ================== PLATFORM CHANGES =================
+* arm64:
+
+ - Inaccuracies resulting from double-rounding in the simulation of
+ floating-point multiply-add/subtract instructions have been fixed. These
+ should now behave exactly as the hardware does.
+
+ - Partial support for the ARM v8.2 instruction set. v8.2 support work is
+ ongoing. Support for the half-word variants of at least the following
+ instructions has been added:
+ FABS <Hd>, <Hn>
+ FABS <Vd>.<T>, <Vn>.<T>
+ FNEG <Hd>, <Hn>
+ FNEG <Vd>.<T>, <Vn>.<T>
+ FSQRT <Hd>, <Hn>
+ FSQRT <Vd>.<T>, <Vn>.<T>
+ FADDP
+
* s390:
- - Implement the new instructions/features that were added to
- z/Architecture with the vector-enhancements facility 1. Also
- cover the instructions from the vector-packed-decimal facility
- that are defined outside the chapter "Vector Decimal
- Instructions", but not the ones from that chapter itself.
+ - Implement the new instructions/features that were added to z/Architecture
+ with the vector-enhancements facility 1. Also cover the instructions from
+ the vector-packed-decimal facility that are defined outside the chapter
+ "Vector Decimal Instructions", but not the ones from that chapter itself.
- For a detailed list of newly supported instructions see the
- updates to `docs/internals/s390-opcodes.csv'.
+ For a detailed list of newly supported instructions see the updates to
+ `docs/internals/s390-opcodes.csv'.
- Since the miscellaneous instruction extensions facility 2 was
- already added in Valgrind 3.16.0, this completes the support
- necessary to run general programs built with `--march=z14' under
- Valgrind. The vector-packed-decimal facility is currently not
- exploited by the standard toolchain and libraries.
+ Since the miscellaneous instruction extensions facility 2 was already
+ added in Valgrind 3.16.0, this completes the support necessary to run
+ general programs built with `--march=z14' under Valgrind. The
+ vector-packed-decimal facility is currently not exploited by the standard
+ toolchain and libraries.
* ppc64:
- - Various bug fixes. Fix for the sync field to limit setting just two
- of the two bits in the L-field. Fix the write size for the stxsibx and
+ - Various bug fixes. Fix for the sync field to limit setting just two of
+ the two bits in the L-field. Fix the write size for the stxsibx and
stxsihx instructions. Fix the modsw and modsd instructions.
- - Partial support for ISA 3.1 has been added. Support for the VSX PCV
- mask instructions, bfloat16 GER instructions, and bfloat16 to/from float
- 32-bit conversion instructions are still missing.
-
-* Valgrind now supports debuginfod, an HTTP server for distributing
- ELF/DWARF debugging information. When a debuginfo file cannot be
- found locally, Valgrind is able to query debuginfod servers for the
- file using its build-id. See the user manual for more information
- about debuginfod support.
+ - Partial support for ISA 3.1 has been added. Support for the VSX PCV mask
+ instructions, bfloat16 GER instructions, and bfloat16 to/from float 32-bit
+ conversion instructions are still missing.
* ==================== TOOL CHANGES ====================
* General tool changes
- All the tools and their vgpreload libraries are now installed under
- libexec because they cannot be executed directly and should be run
- through the valgrind executable. This should be an internal, not user
- visible, change, but might impact valgrind packagers.
+ libexec because they cannot be executed directly and should be run through
+ the valgrind executable. This should be an internal, not user visible,
+ change, but might impact valgrind packagers.
- - The --track-fds option now respects -q, --quiet and won't output
- anything if no file descriptors are leaked. It also won't report
- the standard stdin (0), stdout (1) or stderr (2) descriptors as
- being leaked with --trace-fds=yes anymore. To track whether the
- standard file descriptors are still open at the end of the program
- run use --trace-fds=all.
+ - The --track-fds option now respects -q, --quiet and won't output anything
+ if no file descriptors are leaked. It also won't report the standard stdin
+ (0), stdout (1) or stderr (2) descriptors as being leaked with
+ --trace-fds=yes anymore. To track whether the standard file descriptors
+ are still open at the end of the program run use --trace-fds=all.
* DHAT:
433898 arm64: Handle sp, lr, fp as DwReg in CfiExpr
434193 GCC 9+ inlined strcmp causes "Conditional jump or move [..] value" report
n-i-bz helgrind: If hg_cli__realloc fails, return NULL.
+n-i-bz arm64 front end: avoid Memcheck false positives relating to CPUID
+
+(3.17.0.RC1: 13 Mar 2021, git a049da18b3c045fc8929bd56d404a01046e4c26c)
+
Release 3.16.1 (22 June 2020)
projects / thirdparty / valgrind.git / commitdiff
