Changes between Initial Version and Version 2 of Ticket #8480


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Timestamp:
10/29/2016 05:52:51 PM (8 years ago)
Author:
Douglas R. Reno
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  • Ticket #8480

    • Property Owner changed from blfs-book@… to bdubbs@…
    • Property Status new → assigned

  • Ticket #8480 – Description

    initial v2  
    11New minor version
     2
     3
     4{{{
     5Release 3.12.0 (20 October 2016)
     6~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     7
     83.12.0 is a feature release with many improvements and the usual
     9collection of bug fixes.
     10
     11This release supports X86/Linux, AMD64/Linux, ARM32/Linux,
     12ARM64/Linux, PPC32/Linux, PPC64BE/Linux, PPC64LE/Linux, S390X/Linux,
     13MIPS32/Linux, MIPS64/Linux, ARM/Android, ARM64/Android,
     14MIPS32/Android, X86/Android, X86/Solaris, AMD64/Solaris, X86/MacOSX
     1510.10 and AMD64/MacOSX 10.10.  There is also preliminary support for
     16X86/MacOSX 10.11/12, AMD64/MacOSX 10.11/12 and TILEGX/Linux.
     17
     18* ================== PLATFORM CHANGES =================
     19
     20* POWER: Support for ISA 3.0 has been added
     21
     22* mips: support for O32 FPXX ABI has been added.
     23* mips: improved recognition of different processors
     24* mips: determination of page size now done at run time
     25
     26* amd64: Partial support for AMD FMA4 instructions.
     27
     28* arm, arm64: Support for v8 crypto and CRC instructions.
     29
     30* Improvements and robustification of the Solaris port.
     31
     32* Preliminary support for MacOS 10.12 (Sierra) has been added.
     33
     34Whilst 3.12.0 continues to support the 32-bit x86 instruction set, we
     35would prefer users to migrate to 64-bit x86 (a.k.a amd64 or x86_64)
     36where possible.  Valgrind's support for 32-bit x86 has stagnated in
     37recent years and has fallen far behind that for 64-bit x86
     38instructions.  By contrast 64-bit x86 is well supported, up to and
     39including AVX2.
     40
     41* ==================== TOOL CHANGES ====================
     42
     43* Memcheck:
     44
     45  - Added meta mempool support for describing a custom allocator which:
     46     - Auto-frees all chunks assuming that destroying a pool destroys all
     47       objects in the pool
     48     - Uses itself to allocate other memory blocks
     49
     50  - New flag --ignore-range-below-sp to ignore memory accesses below
     51    the stack pointer, if you really have to.  The related flag
     52    --workaround-gcc296-bugs=yes is now deprecated.  Use
     53    --ignore-range-below-sp=1024-1 as a replacement.
     54
     55* DRD:
     56
     57  - Improved thread startup time significantly on non-Linux platforms.
     58
     59* DHAT
     60
     61  - Added collection of the metric "tot-blocks-allocd"
     62
     63* ==================== OTHER CHANGES ====================
     64
     65* Replacement/wrapping of malloc/new related functions is now done not just
     66  for system libraries by default, but for any globally defined malloc/new
     67  related function (both in shared libraries and statically linked alternative
     68  malloc implementations).  The dynamic (runtime) linker is excluded, though.
     69  To only intercept malloc/new related functions in
     70  system libraries use --soname-synonyms=somalloc=nouserintercepts (where
     71  "nouserintercepts" can be any non-existing library name).
     72  This new functionality is not implemented for MacOS X.
     73
     74* The maximum number of callers in a suppression entry is now equal to
     75  the maximum size for --num-callers (500).
     76  Note that --gen-suppressions=yes|all similarly generates suppressions
     77  containing up to --num-callers frames.
     78
     79* New and modified GDB server monitor features:
     80
     81  - Valgrind's gdbserver now accepts the command 'catch syscall'.
     82    Note that you must have GDB >= 7.11 to use 'catch syscall' with
     83    gdbserver.
     84
     85* New option --run-cxx-freeres=<yes|no> can be used to change whether
     86  __gnu_cxx::__freeres() cleanup function is called or not. Default is
     87  'yes'.
     88
     89* Valgrind is able to read compressed debuginfo sections in two formats:
     90  - zlib ELF gABI format with SHF_COMPRESSED flag (gcc option -gz=zlib)
     91  - zlib GNU format with .zdebug sections (gcc option -gz=zlib-gnu)
     92
     93* Modest JIT-cost improvements: the cost of instrumenting code blocks
     94  for the most common use case (x86_64-linux, Memcheck) has been
     95  reduced by 10%-15%.
     96
     97* Improved performance for programs that do a lot of discarding of
     98  instruction address ranges of 8KB or less.
     99
     100* The C++ symbol demangler has been updated.
     101
     102* More robustness against invalid syscall parameters on Linux.
     103
     104* ==================== FIXED BUGS ====================
     105
     106The following bugs have been fixed or resolved.  Note that "n-i-bz"
     107stands for "not in bugzilla" -- that is, a bug that was reported to us
     108but never got a bugzilla entry.  We encourage you to file bugs in
     109bugzilla (https://bugs.kde.org/enter_bug.cgi?product=valgrind) rather
     110than mailing the developers (or mailing lists) directly -- bugs that
     111are not entered into bugzilla tend to get forgotten about or ignored.
     112
     113To see details of a given bug, visit
     114  https://bugs.kde.org/show_bug.cgi?id=XXXXXX
     115where XXXXXX is the bug number as listed below.
     116
     117191069  Exiting due to signal not reported in XML output
     118199468  Suppressions: stack size limited to 25
     119        while --num-callers allows more frames
     120212352  vex amd64 unhandled opc_aux = 0x 2, first_opcode == 0xDC (FCOM)
     121278744  cvtps2pd with redundant RexW
     122303877  valgrind doesn't support compressed debuginfo sections.
     123345307  Warning about "still reachable" memory when using libstdc++ from gcc 5
     124348345  Assertion fails for negative lineno
     125351282  V 3.10.1 MIPS softfloat build broken with GCC 4.9.3 / binutils 2.25.1
     126351692  Dumps created by valgrind are not readable by gdb (mips32 specific)
     127351804  Crash on generating suppressions for "printf" call on OS X 10.10
     128352197  mips: mmap2() not wrapped correctly for page size > 4096
     129353083  arm64 doesn't implement various xattr system calls
     130353084  arm64 doesn't support sigpending system call
     131353137  www: update info for Supported Platforms
     132353138  www: update "The Valgrind Developers" page
     133353370  don't advertise RDRAND in cpuid for Core-i7-4910-like avx2 machine
     134        == 365325
     135        == 357873
     136353384  amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x62 (pcmpXstrX $0x62)
     137353398  WARNING: unhandled amd64-solaris syscall: 207
     138353660  XML in auxwhat tag not escaping reserved symbols properly
     139353680  s390x: Crash with certain glibc versions due to non-implemented TBEGIN
     140353727  amd64->IR: 0x66 0xF 0x3A 0x62 0xD1 0x72 (pcmpXstrX $0x72)
     141353802  ELF debug info reader confused with multiple .rodata sections
     142353891  Assert 'bad_scanned_addr < VG_ROUNDDN(start+len, sizeof(Addr))' failed
     143353917  unhandled amd64-solaris syscall fchdir(120)
     144353920  unhandled amd64-solaris syscall: 170
     145354274  arm: unhandled instruction: 0xEBAD 0x0AC1 (sub.w sl, sp, r1, lsl #3)
     146354392  unhandled amd64-solaris syscall: 171
     147354797  Vbit test does not include Iops for Power 8 instruction support
     148354883  tst->os_state.pthread - magic_delta assertion failure on OSX 10.11
     149        == 361351
     150        == 362920
     151        == 366222
     152354933  Fix documentation of --kernel-variant=android-no-hw-tls option
     153355188  valgrind should intercept all malloc related global functions
     154355454  do not intercept malloc related symbols from the runtime linker
     155355455  stderr.exp of test cases wrapmalloc and wrapmallocstatic overconstrained
     156356044  Dwarf line info reader misinterprets is_stmt register
     157356112  mips: replace addi with addiu
     158356393  valgrind (vex) crashes because isZeroU happened
     159        == 363497
     160        == 364497
     161356676  arm64-linux: unhandled syscalls 125, 126 (sched_get_priority_max/min)
     162356678  arm64-linux: unhandled syscall 232 (mincore)
     163356817  valgrind.h triggers compiler errors on MSVC when defining NVALGRIND
     164356823  Unsupported ARM instruction: stlex
     165357059  x86/amd64: SSE cvtpi2ps with memory source does transition to MMX state
     166357338  Unhandled instruction for SHA instructions libcrypto Boring SSL
     167357673  crash if I try to run valgrind with a binary link with libcurl
     168357833  Setting RLIMIT_DATA to zero breaks with linux 4.5+
     169357871  pthread_spin_destroy not properly wrapped
     170357887  Calls to VG_(fclose) do not close the file descriptor
     171357932  amd64->IR: accept redundant REX prefixes for {minsd,maxsd} m128, xmm.
     172358030  support direct socket calls on x86 32bit (new in linux 4.3)
     173358478  drd/tests/std_thread.cpp doesn't build with GCC6
     174359133  Assertion 'eltSzB <= ddpa->poolSzB' failed
     175359181  Buffer Overflow during Demangling
     176359201  futex syscall "skips" argument 5 if op is FUTEX_WAIT_BITSET
     177359289  s390x: popcnt (B9E1) not implemented
     178359472  The Power PC vsubuqm instruction doesn't always give the correct result
     179359503  Add missing syscalls for aarch64 (arm64)
     180359645  "You need libc6-dbg" help message could be more helpful
     181359703  s390: wire up separate socketcalls system calls
     182359724  getsockname might crash - deref_UInt should call safe_to_deref
     183359733  amd64 implement ld.so strchr/index override like x86
     184359767  Valgrind does not support the IBM POWER ISA 3.0 instructions, part 1/5
     185359829  Power PC test suite none/tests/ppc64/test_isa_2_07.c uses
     186        uninitialized data
     187359838  arm64: Unhandled instruction 0xD5033F5F (clrex)
     188359871  Incorrect mask handling in ppoll
     189359952  Unrecognised PCMPESTRM variants (0x70, 0x19)
     190360008  Contents of Power vr registers contents is not printed correctly when
     191        the --vgdb-shadow-registers=yes option is used
     192360035  POWER PC instruction bcdadd and bcdsubtract generate result with
     193        non-zero shadow bits
     194360378  arm64: Unhandled instruction 0x5E280844 (sha1h  s4, s2)
     195360425  arm64 unsupported instruction ldpsw
     196        == 364435
     197360519  none/tests/arm64/memory.vgtest might fail with newer gcc
     198360571  Error about the Android Runtime reading below the stack pointer on ARM
     199360574  Wrong parameter type for an ashmem ioctl() call on Android and ARM64
     200360749  kludge for multiple .rodata sections on Solaris no longer needed
     201360752  raise the number of reserved fds in m_main.c from 10 to 12
     202361207  Valgrind does not support the IBM POWER ISA 3.0 instructions, part 2/5
     203361226  s390x: risbgn (EC59) not implemented
     204361253  [s390x] ex_clone.c:42: undefined reference to `pthread_create'
     205361354  ppc64[le]: wire up separate socketcalls system calls
     206361615  Inconsistent termination for multithreaded process terminated by signal
     207361926  Unhandled Solaris syscall: sysfs(84)
     208362009  V dumps core on unimplemented functionality before threads are created
     209362329  Valgrind does not support the IBM POWER ISA 3.0 instructions, part 3/5
     210362894  missing (broken) support for wbit field on mtfsfi instruction (ppc64)
     211362935  [AsusWRT] Assertion 'sizeof(TTEntryC) <= 88' failed
     212362953  Request for an update to the Valgrind Developers page
     213363680  add renameat2() support
     214363705  arm64 missing syscall name_to_handle_at and open_by_handle_at
     215363714  ppc64 missing syscalls sync, waitid and name_to/open_by_handle_at
     216363858  Valgrind does not support the IBM POWER ISA 3.0 instructions, part 4/5
     217364058  clarify in manual limitations of array overruns detections
     218364413  pselect sycallwrapper mishandles NULL sigmask
     219364728  Power PC, missing support for several HW registers in
     220        get_otrack_shadow_offset_wrk()
     221364948  Valgrind does not support the IBM POWER ISA 3.0 instructions, part 5/5
     222365273  Invalid write to stack location reported after signal handler runs
     223365912  ppc64BE segfault during jm-insns test (RELRO)
     224366079  FPXX Support for MIPS32 Valgrind
     225366138  Fix configure errors out when using Xcode 8 (clang 8.0.0)
     226366344  Multiple unhandled instruction for Aarch64
     227        (0x0EE0E020, 0x1AC15800, 0x4E284801, 0x5E040023, 0x5E056060)
     228367995  Integration of memcheck with custom memory allocator
     229368120  x86_linux asm _start functions do not keep 16-byte aligned stack pointer
     230368412  False positive result for altivec capability check
     231368416  Add tc06_two_races_xml.exp output for ppc64
     232368419  Perf Events ioctls not implemented
     233368461  mmapunmap test fails on ppc64
     234368823  run_a_thread_NORETURN assembly code typo for VGP_arm64_linux target
     235369000  AMD64 fma4 instructions unsupported.
     236369169  ppc64 fails jm_int_isa_2_07 test
     237369175  jm_vec_isa_2_07 test crashes on ppc64
     238369209  valgrind loops and eats up all memory if cwd doesn't exist.
     239369356  pre_mem_read_sockaddr syscall wrapper can crash with bad sockaddr
     240369359  msghdr_foreachfield can crash when handling bad iovec
     241369360  Bad sigprocmask old or new sets can crash valgrind
     242369361  vmsplice syscall wrapper crashes on bad iovec
     243369362  Bad sigaction arguments crash valgrind
     244369383  x86 sys_modify_ldt wrapper crashes on bad ptr
     245369402  Bad set/get_thread_area pointer crashes valgrind
     246369441  bad lvec argument crashes process_vm_readv/writev syscall wrappers
     247369446  valgrind crashes on unknown fcntl command
     248369439  S390x: Unhandled insns RISBLG/RISBHG and LDE/LDER
     249369468  Remove quadratic metapool algorithm using VG_(HT_remove_at_Iter)
     250370265  ISA 3.0 HW cap stuff needs updating
     251371128  BCD add and subtract instructions on Power BE in 32-bit mode do not work
     252n-i-bz  Fix incorrect (or infinite loop) unwind on RHEL7 x86 and amd64
     253n-i-bz  massif --pages-as-heap=yes does not report peak caused by mmap+munmap
     254n-i-bz  false positive leaks due to aspacemgr merging heap & non heap segments
     255n-i-bz  Fix ppoll_alarm exclusion on OS X
     256n-i-bz  Document brk segment limitation, reference manual in limit reached msg.
     257n-i-bz  Fix clobber list in none/tests/amd64/xacq_xrel.c [valgrind r15737]
     258n-i-bz  Bump allowed shift value for "add.w reg, sp, reg, lsl #N" [vex r3206]
     259n-i-bz  amd64: memcheck false positive with shr %edx
     260n-i-bz  arm3: Allow early writeback of SP base register in "strd rD, [sp, #-16]"
     261n-i-bz  ppc: Fix two cases of PPCAvFpOp vs PPCFpOp enum confusion
     262n-i-bz  arm: Fix incorrect register-number constraint check for LDAEX{,B,H,D}
     263n-i-bz  DHAT: added collection of the metric "tot-blocks-allocd"
     264
     265(3.12.0.RC1:  20 October 2016, vex r3282, valgrind r16094)
     266(3.12.0.RC2:  20 October 2016, vex r3282, valgrind r16096)
     267(3.12.0:      21 October 2016, vex r3282, valgrind r16098)
     268}}}