* Enable Large-file Support
This should fix https://github.com/google/benchmark/issues/1725
* Use whitespaces instead of tab in BUILD.bazel
---------
Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
There are three major compilers on Windows targeting the MSVC ABI (i.e.
linking with microsofts STL etc.):
- `MSVC`
- `clang-cl` aka clang with the MSVC compatible CLI
- `clang++` aka clang with gcc compatible CLI
The cmake variable `MSVC` is only set for the first two as it defined in
terms of the CLI interface provided:
> Set to true when the compiler is some version of Microsoft Visual
> C++ or another compiler simulating the Visual C++ cl command-line syntax.
(from cmake docs)
For many of the tests in the library its the ABI that matters not the
cmdline, so check `CMAKE_CXX_SIMULATE_ID` too, if it is `MSVC` the
current compiler is targeting the MSVC ABI. This handles `clang++`
Build breaks when -Werror is turned on because of unhandled cases of
inocuous/pedantic warnings. Adopted the same solution as for Intel PGI
compiler - just disable -Werror manually, unless BENCHMARK_FORCE_WERROR
is enabled. Fixes#1556.
* Fix CPU frequency estimation on riscv
* Cleanup code for CPU frequency estimation
* Fix use before definition of the macro
* Move the platform definitions back
* Fix compilation error on windows
* Remove unused sleep.h and sleep.cc
* cleanup: support CMake >= 3.10
This aligns the project with the CMake support policies in:
https://opensource.google/documentation/policies/cplusplus-support
I also simplied the management of CMake policies. Most of the overriden
policies (anything <= CMP0067) are enabled by default when you require
CMake >= 3.10. But it is easier to just declare that you will accept
newer policies when they are available using the `...3.22` notation.
* Address review comments
* inlined links
---------
Co-authored-by: dominic <510002+dmah42@users.noreply.github.com>
* Try removing attempt to set the C++ standard
Fixes#1460#1462
* set the standard to 11
* spell it right
* had it right the first time
* require std 11
* plumb through the standard to cxxfeaturecheck
* use policy instead
* can't use policy just yet
* Update CXXFeatureCheck.cmake
* fix CXX_STANDARD_REQUIRED statement
Co-authored-by: Dominic Hamon <dominichamon@users.noreply.github.com>
Some linux distributions no longer provide `python` binary and require
usage of `python3` instead. This changes the scripts here and uses
cmake `find_package(Python3` when running python.
Co-authored-by: Dominic Hamon <dominichamon@users.noreply.github.com>
* Ensure we don't need benchmark installed to pass c++ feature checks
Requires removal of some dependencies on benchmark.h from internal
low-level headers, which is a good thing.
Also added better logging to the feature check cmake module.
* Stop generating the export header and just check it in
* format the new header
* support windows
* format the header again
* avoid depending on internal macro
* ensure we define the right thing for windows static builds
* support older cmake
* and for tests
* Add possibility to ask for libbenchmark version number (#1004)
Add a header which holds the current major, minor, and
patch number of the library. The header is auto generated
by CMake.
* Do not generate unused functions (#1004)
* Add support for version number in bazel (#1004)
* Fix clang format #1004
* Fix more clang format problems (#1004)
* Use git version feature of cmake to determine current lib version
* Rename version_config header to version
* Bake git version into bazel build
* Use same input config header as in cmake for version.h
* Adapt the releasing.md to include versioning in bazel
* cmake: fix handling the case where `git describe` fails
* cmake: fix version recorded in releases
If downloaded as a tarball release, there will be no info from git
to determine the release, so it ends up v0.0.0. If that's the case,
we'll now use the release specified in the project() command,
which needs to be updated for each new release.
* cmake: add `--tags` to `git describe`
That way, lightweight tags will also be taken into account, which should
never hurt, but it'll help in cases where, for some mysterious reason or
other, annotated tags don't make it into a clone.
* update releasing.md
* Support -Wsuggest-override
google/benchmark is C++11 compatible but doesn't use the `override` keyword.
Projects using google/benchmark with enabled `-Wsuggest-override` and `-Werror` will fail to compile.
* Add -Wsuggest-override cxx flag
* Revert unrelated formatting
* Revert unrelated formatting, take 2
* Revert unrelated formatting, take 3
* Disable -Wsuggest-override when compiling tests, gtest does not handle it yet
Co-authored-by: Dominic Hamon <dominichamon@users.noreply.github.com>
* Support optional, user-directed collection of performance counters
The patch allows an engineer wishing to drill into the root causes
of a regression, for example. Currently, only single threaded runs
are supported. The feature is a build-time opt in, and then a runtime
opt in.
The engineer may run the benchmark executable, passing a list of
performance counter names (using libpfm's naming scheme) at the
command line. The counter values will then be collected and reported
back as UserCounters.
This is different from #240 in that it is a benchmark user opt-in, and
the counter collection is transparent to the benchmark.
Currently, this is only supported on platforms where libpfm is
supported.
libpfm: http://perfmon2.sourceforge.net/
* 'Use' values param in Snapshot when BENCHMARK_OS_WINDOWS
This is to avoid unused parameter warning-as-error
* Added missing include for <vector> in perf_counters.cc
* Moved doc to docs
* Added license blurbs
Fixes#974. The `cxx_feature_check` now has an additional
optional argument which can be used to supply extra cmake flags
to pass to the `try_compile` command. The `CMAKE_CXX_STANDARD=14`
flag was determined to be the minimum flag necessary to correctly
compile and run the regex feature checks when compiling with Clang
under Windows (n.b. this does *not* refer to clang-cl, the frontend
to the MSVC compiler). The additional flag is not enabled for any
other compiler/platform tuple.
When building on Windows with `BUILD_SHARED_LIBS=ON`, the symbols were
not being properly exported in the DLL. Fix this by setting
`CMAKE_WINDOWS_EXPORT_ALL_SYMBOLS`.
Fixes#888
