This patch reads the most important cpuid leaves and stores the data in
a struct. A followup patch will inline micro architecture detection and
brand string inside X86Info so we don't have to call `ReadLeaves` multiple
times. This wil allow further simplification of `HasSecondFMA` and help
fix https://github.com/google/cpu_features/issues/200.
Since buffers are a few tens of bytes there is no need for optimized memfunctions. For compile time sizes, the compiler will generate optimal code already.
This commit helps with platform code separation (fixes#3). It should also help with the build as we can simply include all `impl_*.c` files regardless of OS / arch.
Note: this patch contains breaking changes in `include/cpu_features_macros.h`
- `CPU_FEATURES_OS_LINUX_OR_ANDROID` does not exist anymore
- `CPU_FEATURES_OS_FREEBSD`, `CPU_FEATURES_OS_ANDROID` and `CPU_FEATURES_OS_LINUX` are now mutually exclusive (i.e. `CPU_FEATURES_OS_ANDROID` does not imply `CPU_FEATURES_OS_LINUX`)
- `CPU_FEATURES_OS_DARWIN` has been renamed into `CPU_FEATURES_OS_MACOS` to be able to target non-Mac Apple products (IOS, TV, WATCH). They are now targetable with `CPU_FEATURES_OS_IPHONE`. This matches Apple naming convention described in [this stackoverflow](https://stackoverflow.com/a/49560690).
- Use stderr for issues
- Add usage to run_integration.sh (-h or --help)
- deduce toolchain and qemu config from TARGET
- Bump QEMU from 2.11.1 to 5.2.0
- fix qemu build on Archlinux
- Bump Linaro:
toolchain 7.2-2017.11 -> 7.5-2019.12
sysroot 2.25-2017.11 -> 2.25-2019.12
- Bump codescape from 2017.10-08 to 2020.06-01
- migrate from mips-r2-hard to mips-r6-hard
The build fails with following message when -Werror
and -Werror=return-type are enabled.
In function ‘GetCacheTypeString’:
error: control reaches end of non-void function [-Werror=return-type]
Simple fix is to return explicitly communicate to
the compiler that certain block is not reachable.
