5 Valgrind is a test harness that includes many tools such as memcheck,
6 which is commonly used to check for memory leaks, etc. The default tool
7 run by Valgrind is memcheck. There are other tools available, but this
8 will focus on memcheck.
10 Valgrind runs programs in a virtual machine, this means OpenSSL unit
11 tests run under Valgrind will take longer than normal.
16 1. Platform supported by Valgrind
17 See: http://valgrind.org/info/platforms.html
18 2. Valgrind installed on the platform
19 See: http://valgrind.org/downloads/current.html
21 See: [INSTALL.md](INSTALL.md)
26 Test behavior can be modified by adjusting environment variables.
30 This variable is used to specify the shell used to execute OpenSSL test
31 programs. The default wrapper (util/wrap.pl) initializes the environment
32 to allow programs to find shared libraries. The variable can be modified
33 to specify a different executable environment.
35 EXE_SHELL="`/bin/pwd`/util/wrap.pl valgrind --error-exitcode=1 --leak-check=full -q"
37 This will start up Valgrind with the default checker (memcheck).
38 The --error-exitcode=1 option specifies that Valgrind should exit with an
39 error code of 1 when memory leaks occur.
40 The --leak-check=full option specifies extensive memory checking.
41 The -q option prints only error messages.
42 Additional Valgrind options may be added to the EXE_SHELL variable.
46 This variable controls the processor-specific code on Intel processors.
47 By default, OpenSSL will attempt to figure out the capabilities of a
48 processor, and use it to its fullest capability. This variable can be
49 used to control what capabilities OpenSSL uses.
51 As of valgrind-3.15.0 on Linux/x86_64, instructions up to AVX2 are
52 supported. Setting the following disables instructions beyond AVX2:
54 `OPENSSL_ia32cap=":0"`
56 This variable may need to be set to something different based on the
57 processor and Valgrind version you are running tests on. More information
58 may be found in [docs/man3/OPENSSL_ia32cap.pod](docs/man3/OPENSSL_ia32cap.pod).
60 Additional variables (such as `VERBOSE` and `TESTS`) are described in the
61 file [test/README.md](test/README.md).
65 $ make test EXE_SHELL="`/bin/pwd`/util/wrap.pl valgrind --error-exitcode=1 --leak-check=full -q" OPENSSL_ia32cap=":0"
67 If an error occurs, you can then run the specific test via the `TESTS`
68 variable with the VERBOSE option to gather additional information.
70 $ make test VERBOSE=1 TESTS=test_test EXE_SHELL="`/bin/pwd`/util/wrap.pl valgrind --error-exitcode=1 --leak-check=full -q" OPENSSL_ia32cap=":0"