mirror of
https://github.com/openssl/openssl.git
synced 2024-11-21 01:15:20 +08:00
71 lines
2.6 KiB
Plaintext
71 lines
2.6 KiB
Plaintext
|
|
||
|
|
NOTES FOR VALGRIND
|
||
|
|
==================
|
||
|
|
|
||
|
|
Valgrind is a test harness that includes many tools such as memcheck,
|
||
|
|
which is commonly used to check for memory leaks, etc. The default tool
|
||
|
|
run by Valgrind is memcheck. There are other tools available, but this
|
||
|
|
will focus on memcheck.
|
||
|
|
|
||
|
|
Valgrind runs programs in a virtual machine, this means OpenSSL unit
|
||
|
|
tests run under Valgrind will take longer than normal.
|
||
|
|
|
||
|
|
Requirements
|
||
|
|
------------
|
||
|
|
|
||
|
|
1. Platform supported by Valgrind
|
||
|
|
See: http://valgrind.org/info/platforms.html
|
||
|
|
2. Valgrind installed on the platform
|
||
|
|
See: http://valgrind.org/downloads/current.html
|
||
|
|
3. OpensSSL compiled
|
||
|
|
See: INSTALL
|
||
|
|
|
||
|
|
Running Tests
|
||
|
|
-------------
|
||
|
|
|
||
|
|
Test behavior can be modified by adjusting environment variables.
|
||
|
|
|
||
|
|
EXE_SHELL
|
||
|
|
|
||
|
|
This variable is used to specify the shell used to execute OpenSSL test
|
||
|
|
programs. The default program (util/shlib_wrap.sh) initializes the
|
||
|
|
environment to allow programs to find shared libraries. The variable can
|
||
|
|
be modified to specify a different executable environment.
|
||
|
|
|
||
|
|
EXE_SHELL="`/bin/pwd`/util/shlib_wrap.sh valgrind --error-exitcode=1 --leak-check=full -q"
|
||
|
|
|
||
|
|
This will start up Valgrind with the default checker (memcheck).
|
||
|
|
The --error-exitcode=1 option specifies that Valgrind should exit with an
|
||
|
|
error code of 1 when memory leaks occur.
|
||
|
|
The --leak-check=full option specifies extensive memory checking.
|
||
|
|
The -q option prints only error messages.
|
||
|
|
Additional Valgrind options may be added to the EXE_SHELL variable.
|
||
|
|
|
||
|
|
OPENSSL_ia32cap
|
||
|
|
|
||
|
|
This variable controls the processor-specific code on Intel processors.
|
||
|
|
By default, OpenSSL will attempt to figure out the capabilities of a
|
||
|
|
processor, and use it to its fullest capability. This variable can be
|
||
|
|
used to control what capabilities OpenSSL uses.
|
||
|
|
|
||
|
|
As of valgrind-3.15.0 on Linux/x86_64, instructions up to AVX2 are
|
||
|
|
supported. Setting the following disables instructions beyond AVX2:
|
||
|
|
|
||
|
|
OPENSSL_ia32cap=":0"
|
||
|
|
|
||
|
|
This variable may need to be set to something different based on the
|
||
|
|
processor and Valgrind version you are running tests on. More information
|
||
|
|
may be found in docs/man3/OPENSSL_ia32cap.pod.
|
||
|
|
|
||
|
|
Additional variables (i.e. VERBOSE and TESTS) are described in the
|
||
|
|
INSTALL file in the root of the OpenSSL source tree.
|
||
|
|
|
||
|
|
Example command line:
|
||
|
|
|
||
|
|
make test EXE_SHELL="`/bin/pwd`/util/shlib_wrap.sh valgrind --error-exitcode=1 --leak-check=full -q" OPENSSL_ia32cap=":0"
|
||
|
|
|
||
|
|
If an error occurs, you can then run the specific test via the TESTS
|
||
|
|
variable with the VERBOSE option to gather additional information.
|
||
|
|
|
||
|
|
make test VERBOSE=1 TESTS=test_test EXE_SHELL="`/bin/pwd`/util/shlib_wrap.sh valgrind --error-exitcode=1 --leak-check=full -q" OPENSSL_ia32cap=":0"
|