I want to use the tool to check memory leak for C program in Mac.
I am using Mac OSX 10.9.
There is one tool "Valgrind", it is
Valgrind
http://valgrind.org/
This tool is supporting Linux and Mac OS X. But OSX is for only 10.10.
But I found one nice information to install it to Mac OSX 10.9.
This document.
https://calvinx.com/2014/05/04/valgrind-on-mac-os-x-10-9-mavericks/
And also below document is for 10.10.
http://ranf.tl/2014/11/28/valgrind-on-mac-os-x-10-10-yosemite/
Install
If you have not installed below software, install it.
$ brew install autoconf $ brew install automake
Download https://github.com/fredericgermain/valgrind homebrew branch.
$ git clone https://github.com/fredericgermain/valgrind.git -b homebrew $ cd valgrind/ $ git branch * homebrew
Do not forget to install submodule.
$ git submodule init $ git submodule update
$ ./autogen.sh $ ./configure --version Valgrind configure 3.10.0.SVN ... $ ./configure --prefix=/usr/local/valgrind-3.10.0 $ make $ make install
It was installed successfully.
$ ls /usr/local/valgrind-3.10.0/
Set symbolic link.
$ cd /usr/local $ ln -s valgrind-3.10.0 valgrind
Add bin directory to PATH environment variable.
$ vi ~/.bashrc PATH="${PATH}:/usr/local/valgrind/bin" export PATH $ . ~/.bashrc $ valgrind --version valgrind-3.10.0.SVN
Usage
bin/thread is my sample C compiled program.
See https://github.com/junaruga/multi_test/blob/master/src/thread_main.c
$ bin/thread Job 1 started, sleep sec: 7. Job 2 started, sleep sec: 9. Job 3 started, sleep sec: 3. Job 4 started, sleep sec: 8. Job 3 ended. Job 1 ended. Job 4 ended. Job 2 ended.
Run this program by valgrind.
$ valgrind bin/thread ==40900== Memcheck, a memory error detector ==40900== Copyright (C) 2002-2013, and GNU GPL'd, by Julian Seward et al. ==40900== Using Valgrind-3.10.0.SVN and LibVEX; rerun with -h for copyright info ==40900== Command: bin/thread ==40900== ==40900== WARNING: Support on MacOS 10.8/10.9 is experimental and mostly broken. ==40900== WARNING: Expect incorrect results, assertions and crashes. ==40900== WARNING: In particular, Memcheck on 32-bit programs will fail to ==40900== WARNING: detect any errors associated with heap-allocated data. ==40900== --40900-- bin/thread: --40900-- dSYM directory is missing; consider using --dsymutil=yes Job 1 started, sleep sec: 7. Job 2 started, sleep sec: 9. Job 3 started, sleep sec: 3. Job 4 started, sleep sec: 8. Job 3 ended. Job 1 ended. Job 4 ended. Job 2 ended. ==40900== ==40900== HEAP SUMMARY: ==40900== in use at exit: 29,923 bytes in 374 blocks ==40900== total heap usage: 450 allocs, 76 frees, 35,867 bytes allocated ==40900== ==40900== LEAK SUMMARY: ==40900== definitely lost: 0 bytes in 0 blocks ==40900== indirectly lost: 0 bytes in 0 blocks ==40900== possibly lost: 0 bytes in 0 blocks ==40900== still reachable: 4,096 bytes in 1 blocks ==40900== suppressed: 25,827 bytes in 373 blocks ==40900== Rerun with --leak-check=full to see details of leaked memory ==40900== ==40900== For counts of detected and suppressed errors, rerun with: -v ==40900== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 117 from 20)
You can see HEAP SUMMARY and LEAK SUMMARY.
