We need to export external functions so they are found when calling
GetProcAddress() on Windows. But we can't use `__declspec(dllexport)` because
we want the targets to be completely independent from the fuzz engines and don't
depend on other header files. Also, we don't want to include platform specific
code managed with conditional macros.
So, the solution is to add the exported symbols with linker flags in cmake.
Differential revision: https://reviews.llvm.org/D29752
llvm-svn: 294688
We should always use unsigned long long to ensure 64 bits. On Windows, unsigned
long is 4 bytes. This was the reason why value-profile-cmp4.test was failing on
Windows.
Differential Revision: https://reviews.llvm.org/D29617
llvm-svn: 294390
Update cmake to use a custom target TestBinaries instead of a list of targets.
This simplifies cmake, and fix some errors. This way, we don't have to propagate
the values into parents directories. We only need to use add_dependencies.
Differential Revision: https://reviews.llvm.org/D29593
llvm-svn: 294389
On Windows, executables with the word "uninst" included in their names are
associated with administrator privileges.
Differential Revision: https://reviews.llvm.org/D29549
llvm-svn: 294387
Add the option "-n", so we don't add a new line character at the end of the file
when using echo. (on Windows this means 2 characters).
Differential Revision: https://reviews.llvm.org/D29536
llvm-svn: 294384
This configuration is necessary, and is included in all tests suites.
We need to execute: `config.test_format = lit.formats.ShTest(False)`
Otherwise, lit will try to use bash, which generates many problems.
Differential Revision: https://reviews.llvm.org/D29529
llvm-svn: 294380
Environment variables are handled differently on Windows. In this case it is not
necessary to use environment variables. So, I simplify the test to work on
Windows.
Differential Revision: https://reviews.llvm.org/D29532
llvm-svn: 294379
We should ensure the size of the variable `a` is 8 bytes. Otherwise, this
generates a stack buffer overflow inside the memcpy call in 32 bits machines.
(We write more bytes than the size of a, when it is 4 bytes)
Differential Revision: https://reviews.llvm.org/D29602
llvm-svn: 294378
Add 2 features: posix and windows.
Sometimes we want some specific tests only for posix and we use:
REQUIRES: posix
Sometimes we want some specific tests only for windows and we use:
REQUIRES: windows
Differential Revision: https://reviews.llvm.org/D29418
llvm-svn: 293827
Commands should expand the wildcards on Windows, the cmd prompt doesn't.
Because of that sancov was not finding the needed file.
To deal with this, we use ls and xargs from gnu win utils.
Differential Revision: https://reviews.llvm.org/D29374
llvm-svn: 293825
We need to set BINARY_DIR to: ${CMAKE_BINARY_DIR}/lib/Fuzzer/test , so the dll
is placed in the same directory than the test LLVMFuzzer-DSOTest, and is found
when executing that test.
As we are using CMAKE_CXX_CREATE_SHARED_LIBRARY to link the dll, we can't modify
the output directory for the import library. It will be created in the same
directory than the dll (in BINARY_DIR), no matter which value we set to
LIBRARY_DIR. So, if we set LIBRARY_DIR to a different directory than BINARY_DIR,
when linking LLVMFuzzer-DSOTest, cmake will look for the import library
LLVMFuzzer-DSO1.lib in LIBRARY_DIR, and won't find it, since it was created in
BINARY_DIR. So, for Windows, we need that LIBRARY_DIR and BINARY_DIR are the
same directory.
Differential Revision: https://reviews.llvm.org/D27870
llvm-svn: 292748
I add 2 changes to make the tests work on 32 bits and on 64 bits.
I change the size allocated to 0x20000000 and add the flag: -rss_limit_mb=300.
Otherwise the output for 32 bits and 64 bits is different.
For 64 bits the value 0xff000000 doesn't exceed kMaxAllowedMallocSize.
For 32 bits, kMaxAllowedMallocSize is set to 0xc0000000, so the call to
Allocate() will fail earlier printing "WARNING: AddressSanitizer failed to
allocate ..." , and wont't call malloc hooks.
So, we need to consider a size smaller than 2GB (so malloc doesn't fail on
32bits) and greater that the value provided by -rss_limit_mb.
Because of that I use: 0x20000000.
Differential Revision: https://reviews.llvm.org/D28706
llvm-svn: 292744
This changes is necessary on Windows, where libraries doesn't include the prefix
"lib".
Differential Revision: https://reviews.llvm.org/D28710
llvm-svn: 292742
We need to build all the tests with -O0, otherwise optimizations may merge some
basic blocks and the tests will fail.
In this diff, I simplify the cmake implementation and I remove the flags for
Windows too (/O[123s]).
Differential Revision: https://reviews.llvm.org/D28632
llvm-svn: 292737
Remove dependency on FileCheck, sancov and not for tests on Windows.
If LLVM_USE_SANITIZER=Address and LLVM_USE_SANITIZE_COVERAGE=YES, this will
trigger the building of dependencies with sanitizer instrumentation.
This will fail in Windows, since cmake will use link.exe for linking and won't
include compiler-rt libraries.
Differential Revision: https://reviews.llvm.org/D27993
llvm-svn: 292735
In order to use sanitizers on Windows, we need to link against many runtime
libraries which will depend on the target being created (executable or dll) and
the c runtime library used (MT/MD).
By default, cmake uses link.exe for linking, which fails because we don't
specify the appropiate dependencies. As we don't want to consider all of that
possible situations which depends on the implementation of the compiler-rt, the
simplest option is to change the rules for linking executables and shared
libraries, using the compiler instead of link.exe.
Clang driver will consider the sanitizer flags, and automatically provide the
required libraries to the linker.
Differential Revision: https://reviews.llvm.org/D27869
llvm-svn: 292669
