54f37133b7
Mostly mechanical changes in preparation of extracting the Flang-RT "subproject" in #110217. This PR intends to only move pre-existing files to the new folder structure, with no behavioral change. Common files (headers, testing, cmake) shared by Flang-RT and Flang remain in `flang/`. Some cosmetic changes and files paths were necessary: * Relative paths to the new path for the source files and `add_subdirectory`. * Add the new location's include directory to `include_directories` * The unittest/Evaluate directory has unitests for flang-rt and Flang. A new `CMakeLists.txt` was introduced for the flang-rt tests. * Change the `#include` paths relative to the include directive * clang-format on the `#include` directives * Since the paths are part if the copyright header and include guards, a script was used to canonicalize those * `test/Runtime` and runtime tests in `test/Driver` are moved, but the lit.cfg.py mechanism to execute the will only be added in #110217.
49 lines
1.6 KiB
C++
49 lines
1.6 KiB
C++
//===-- lib/runtime/main.cpp ------------------------------------*- C++ -*-===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "flang/Runtime/main.h"
|
|
#include "flang-rt/runtime/environment.h"
|
|
#include "flang-rt/runtime/terminator.h"
|
|
#include <cfenv>
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
|
|
static void ConfigureFloatingPoint() {
|
|
#ifdef feclearexcept // a macro in some environments; omit std::
|
|
feclearexcept(FE_ALL_EXCEPT);
|
|
#else
|
|
std::feclearexcept(FE_ALL_EXCEPT);
|
|
#endif
|
|
#ifdef fesetround
|
|
fesetround(FE_TONEAREST);
|
|
#else
|
|
std::fesetround(FE_TONEAREST);
|
|
#endif
|
|
}
|
|
|
|
extern "C" {
|
|
void RTNAME(ProgramStart)(int argc, const char *argv[], const char *envp[],
|
|
const EnvironmentDefaultList *envDefaults) {
|
|
std::atexit(Fortran::runtime::NotifyOtherImagesOfNormalEnd);
|
|
Fortran::runtime::executionEnvironment.Configure(
|
|
argc, argv, envp, envDefaults);
|
|
ConfigureFloatingPoint();
|
|
// I/O is initialized on demand so that it works for non-Fortran main().
|
|
}
|
|
|
|
void RTNAME(ByteswapOption)() {
|
|
if (Fortran::runtime::executionEnvironment.conversion ==
|
|
Fortran::runtime::Convert::Unknown) {
|
|
// The environment variable overrides the command-line option;
|
|
// either of them take precedence over explicit OPEN(CONVERT=) specifiers.
|
|
Fortran::runtime::executionEnvironment.conversion =
|
|
Fortran::runtime::Convert::Swap;
|
|
}
|
|
}
|
|
}
|