From: Julian Seward Date: Sun, 14 Dec 2003 00:14:54 +0000 (+0000) Subject: Update for 2.1.0. X-Git-Tag: svn/VALGRIND_2_1_0~7 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=dcc198661eb20e2120deae8350f6c9dad02e0fc3;p=thirdparty%2Fvalgrind.git Update for 2.1.0. git-svn-id: svn://svn.valgrind.org/valgrind/trunk@2106 --- diff --git a/NEWS b/NEWS index b55c0005ff..9afd438929 100644 --- a/NEWS +++ b/NEWS @@ -1,4 +1,144 @@ -Snapshot 2003XXXX (XX XXXX 2003) + +Unstable (cvs head) release 2.1.0 (15 December 2003) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +For whatever it's worth, 2.1.0 actually seems pretty darn stable to me +(Julian). It looks eminently usable, and given that it fixes some +significant bugs, may well be worth using on a day-to-day basis. +2.1.0 is known to build and pass regression tests on: SuSE 9, SuSE +8.2, RedHat 8. + +2.1.0 most notably includes Jeremy Fitzhardinge's complete overhaul of +handling of system calls and signals, and their interaction with +threads. In general, the accuracy of the system call, thread and +signal simulations is much improved. Specifically: + +- Blocking system calls behave exactly as they do when running + natively (not on valgrind). That is, if a syscall blocks only the + calling thread when running natively, than it behaves the same on + valgrind. No more mysterious hangs because V doesn't know that some + syscall or other, should block only the calling thread. + +- Interrupted syscalls should now give more faithful results. + +- Finally, signal contexts in signal handlers are supported. As a + result, konqueror on SuSE 9 no longer segfaults when notified of + file changes in directories it is watching. + +Other changes: + +- Robert Walsh's file descriptor leakage checks. When enabled, + Valgrind will print out a list of open file descriptors on + exit. Along with each file descriptor, Valgrind prints out a stack + backtrace of where the file was opened and any details relating to the + file descriptor such as the file name or socket details. + To use, give: --track-fds=yes + +- Implemented a few more SSE/SSE2 instructions. + +- Less crud on the stack when you do 'where' inside a GDB attach. + +- Fixed the following bugs: + 68360: Valgrind does not compile against 2.6.0-testX kernels + 68525: CVS head doesn't compile on C90 compilers + 68566: pkgconfig support (wishlist) + 68588: Assertion `sz == 4' failed in vg_to_ucode.c (disInstr) + 69140: valgrind not able to explicitly specify a path to a binary. + 69432: helgrind asserts encountering a MutexErr when there are + EraserErr suppressions + + + +Stable release 2.0.0 (5 Nov 2003) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +2.0.0 improves SSE/SSE2 support, fixes some minor bugs, and +improves support for SuSE 9 and the Red Hat "Severn" beta. + +- Further improvements to SSE/SSE2 support. The entire test suite of + the GNU Scientific Library (gsl-1.4) compiled with Intel Icc 7.1 + 20030307Z '-g -O -xW' now works. I think this gives pretty good + coverage of SSE/SSE2 floating point instructions, or at least the + subset emitted by Icc. + +- Also added support for the following instructions: + MOVNTDQ UCOMISD UNPCKLPS UNPCKHPS SQRTSS + PUSH/POP %{FS,GS}, and PUSH %CS (Nb: there is no POP %CS). + +- CFI support for GDB version 6. Needed to enable newer GDBs + to figure out where they are when using --gdb-attach=yes. + +- Fix this: + mc_translate.c:1091 (memcheck_instrument): Assertion + `u_in->size == 4 || u_in->size == 16' failed. + +- Return an error rather than panicing when given a bad socketcall. + +- Fix checking of syscall rt_sigtimedwait(). + +- Implement __NR_clock_gettime (syscall 265). Needed on Red Hat Severn. + +- Fixed bug in overlap check in strncpy() -- it was assuming the src was 'n' + bytes long, when it could be shorter, which could cause false + positives. + +- Support use of select() for very large numbers of file descriptors. + +- Don't fail silently if the executable is statically linked, or is + setuid/setgid. Print an error message instead. + +- Support for old DWARF-1 format line number info. + + + +Snapshot 20031012 (12 October 2003) +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +Three months worth of bug fixes, roughly. Most significant single +change is improved SSE/SSE2 support, mostly thanks to Dirk Mueller. + +20031012 builds on Red Hat Fedora ("Severn") but doesn't really work +(curiosly, mozilla runs OK, but a modest "ls -l" bombs). I hope to +get a working version out soon. It may or may not work ok on the +forthcoming SuSE 9; I hear positive noises about it but haven't been +able to verify this myself (not until I get hold of a copy of 9). + +A detailed list of changes, in no particular order: + +- Describe --gen-suppressions in the FAQ. + +- Syscall __NR_waitpid supported. + +- Minor MMX bug fix. + +- -v prints program's argv[] at startup. + +- More glibc-2.3 suppressions. + +- Suppressions for stack underrun bug(s) in the c++ support library + distributed with Intel Icc 7.0. + +- Fix problems reading /proc/self/maps. + +- Fix a couple of messages that should have been suppressed by -q, + but weren't. + +- Make Addrcheck understand "Overlap" suppressions. + +- At startup, check if program is statically linked and bail out if so. + +- Cachegrind: Auto-detect Intel Pentium-M, also VIA Nehemiah + +- Memcheck/addrcheck: minor speed optimisations + +- Handle syscall __NR_brk more correctly than before. + +- Fixed incorrect allocate/free mismatch errors when using + operator new(unsigned, std::nothrow_t const&) + operator new[](unsigned, std::nothrow_t const&) + +- Support POSIX pthread spinlocks. + +- Fixups for clean compilation with gcc-3.3.1. - Implemented more opcodes: - push %es @@ -14,8 +154,9 @@ Snapshot 2003XXXX (XX XXXX 2003) - mov imm32, %esp - all "in" and "out" opcodes - inc/dec %esp + - A whole bunch of SSE/SSE2 instructions -- Memcheck: Implemented handling of more SSE(2) constructs +- Memcheck: don't bomb on SSE/SSE2 code. Snapshot 20030725 (25 July 2003)