=55558= Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. =55558= Memcheck, a memory error detector A number of internal bugs in Valgrind have been resolved, as well as known Apple system library bugs suppressed. This error appears resolved in latest Valgrind SVN source. When run with -v -gen-suppressions=yes, valgrind reports a lot more information, but there are still no suppressed errors. usr/lib/system/libmathCommon.A.dylib (compatibility version 1.0.0, current version 315.0.0) usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 125.2.11) Warranty not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.Ĭopyright (C) 2011 Free Software Foundation, Inc.ĭarwin localhost 10.8.0 Darwin Kernel Version 10.8.0: Tue Jun 7 16:33: root:xnu-1504.15.3~1/RELEASE_I386 i386 This is free software see the source for copying conditions. build 5658) (LLVM build 2335.9)Ĭopyright (C) 2007 Free Software Foundation, Inc. =40593= ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) =40593= For counts of detected and suppressed errors, rerun with: -v =40593= Rerun with -leak-check=full to see details of leaked memory =40593= still reachable: 4,184 bytes in 2 blocks =40593= possibly lost: 0 bytes in 0 blocks =40593= indirectly lost: 0 bytes in 0 blocks =40593= definitely lost: 0 bytes in 0 blocks =40593= total heap usage: 6 allocs, 4 frees, 26,848 bytes allocated =40593= in use at exit: 4,184 bytes in 2 blocks =40593= Using Valgrind-3.6.0 and LibVEX rerun with -h for copyright info =40593= Copyright (C) 2002-2010, and GNU GPL'd, by Julian Seward et al. =40593= Memcheck, a memory error detector Vg.c:4:5: warning: old-style function definition Vg.c:4:5: warning: function declaration isn’t a prototype I do get compilation warnings from your code (4.6.0 shown) - actually, I have 'make' run the command and the makefile contains all those -Wxxx arguments: $ gcc -g -std=c99 -Wall -Wextra -Wmissing-prototypes -Wstrict-prototypes -Wold-style-definition vg.c -o vg I too get no errors using MacOS X 10.6.8, Valgrind 3.6.0, and either (Apple's) GCC 4.2.1 or (my) GCC 4.6.0. The reported problem seems to be internal to the system library, not in your code. =4425= Syscall param wait4(pid) contains uninitialised byte(s) =4425= Uninitialised value was created by a stack allocation =4425= Conditional jump or move depends on uninitialised value(s) Got the same thing with gcc 4.2.1 and 4.5.3. Turning on -track-origins in valgrind shows that the origin of the problem might be in the popen() call. However, I don't get any errors on a Linux system with valgrind version 3.5.0.Īny ideas on what could be causing the errors on the Mac? =21455= Syscall param wait4(pid) contains uninitialised byte(s) I get the following valgrind errors on a Mac (OS X 10.6.7, valgrind version 3.6.0), except if I remove the pclose() call: =21455= Conditional jump or move depends on uninitialised value(s) Consider the following example: #include The errors occur on Mac OS X, but not on Linux. I'm getting valgrind errors when attempting to pclose() a pipe previously open with popen().
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