# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.
+import SCons
import os
+import subprocess
+
+def version_at_least(version, required):
+ end = min(len(version), len(required))
+
+ for i in range(0, end, 2):
+ if int(version[i]) < int(required[i]):
+ return False
+ elif int(version[i]) > int(required[i]):
+ return True
+
+ return True
vars = Variables("scons")
vars.AddVariables(
BoolVariable("debug", "Debug", False),
BoolVariable("asserts", "Enable asserts (this flag is forced to 1 for debug=1)", False),
+ BoolVariable("logging", "Logging (this flag is forced to 1 for debug=1)", False),
EnumVariable("arch", "Target Architecture", "armv7a", allowed_values=("armv7a", "arm64-v8a", "arm64-v8.2-a", "x86_32", "x86_64")),
EnumVariable("os", "Target OS", "linux", allowed_values=("linux", "android", "bare_metal")),
- EnumVariable("build", "Build type", "cross_compile", allowed_values=("native", "cross_compile")),
- BoolVariable("examples", "Build example programs", False),
+ EnumVariable("build", "Build type", "cross_compile", allowed_values=("native", "cross_compile", "embed_only")),
+ BoolVariable("examples", "Build example programs", True),
BoolVariable("Werror", "Enable/disable the -Werror compilation flag", True),
+ BoolVariable("standalone", "Builds the tests as standalone executables, links statically with libgcc, libstdc++ and libarm_compute", False),
BoolVariable("opencl", "Enable OpenCL support", True),
BoolVariable("neon", "Enable Neon support", False),
- BoolVariable("embed_kernels", "Embed OpenCL kernels in library binary", False),
+ BoolVariable("gles_compute", "Enable OpenGL ES Compute Shader support", False),
+ BoolVariable("embed_kernels", "Embed OpenCL kernels and OpenGL ES compute shaders in library binary", True),
BoolVariable("set_soname", "Set the library's soname and shlibversion (requires SCons 2.4 or above)", False),
BoolVariable("openmp", "Enable OpenMP backend", False),
BoolVariable("cppthreads", "Enable C++11 threads backend", True),
- PathVariable("build_dir", "Specify sub-folder for the build", ".", PathVariable.PathIsDirCreate),
- ("extra_cxx_flags", "Extra CXX flags to be appended to the build command", "")
+ PathVariable("build_dir", "Specify sub-folder for the build", ".", PathVariable.PathAccept),
+ ("extra_cxx_flags", "Extra CXX flags to be appended to the build command", ""),
+ ("compiler_cache", "Command to prefix to the C and C++ compiler (e.g ccache)", "")
)
-env = Environment(platform='posix', variables = vars, ENV = os.environ)
+env = Environment(platform="posix", variables=vars, ENV = os.environ)
+env.Append(LIBPATH = ["#build/%s" % env['build_dir']])
+Export('env')
+Export('vars')
+
+SConsignFile('build/.%s' % env['build_dir'])
Help(vars.GenerateHelpText(env))
-Export('vars')
-Export('env')
+if env['build'] == "embed_only":
+ SConscript('./SConscript', variant_dir='#build/%s' % env['build_dir'], duplicate=0)
+ Return()
+
+if env['neon'] and 'x86' in env['arch']:
+ print "Cannot compile NEON for x86"
+ Exit(1)
+
+if env['set_soname'] and not version_at_least(SCons.__version__, "2.4"):
+ print "Setting the library's SONAME / SHLIBVERSION requires SCons 2.4 or above"
+ print "Update your version of SCons or use set_soname=0"
+ Exit(1)
+
+if env['os'] == 'bare_metal':
+ if env['cppthreads'] or env['openmp']:
+ print("ERROR: OpenMP and C++11 threads not supported in bare_metal. Use cppthreads=0 openmp=0")
+ Exit(1)
+
+env.Append(CXXFLAGS = ['-Wno-deprecated-declarations','-Wall','-DARCH_ARM',
+ '-Wextra','-Wno-unused-parameter','-pedantic','-Wdisabled-optimization','-Wformat=2',
+ '-Winit-self','-Wstrict-overflow=2','-Wswitch-default',
+ '-fpermissive','-std=gnu++11','-Wno-vla','-Woverloaded-virtual',
+ '-Wctor-dtor-privacy','-Wsign-promo','-Weffc++','-Wno-format-nonliteral','-Wno-overlength-strings','-Wno-strict-overflow','-Wno-implicit-fallthrough'])
+
+env.Append(CPPDEFINES = ['_GLIBCXX_USE_NANOSLEEP'])
+
+default_cpp_compiler = 'g++' if env['os'] != 'android' else 'clang++'
+default_c_compiler = 'gcc' if env['os'] != 'android' else 'clang'
+cpp_compiler = os.environ.get('CXX', default_cpp_compiler)
+c_compiler = os.environ.get('CC', default_c_compiler)
+
+if env['os'] == 'android' and ( 'clang++' not in cpp_compiler or 'clang' not in c_compiler ):
+ print "WARNING: Only clang is officially supported to build the Compute Library for Android"
+
+if 'clang++' in cpp_compiler:
+ env.Append(CXXFLAGS = ['-Wno-format-nonliteral','-Wno-deprecated-increment-bool','-Wno-vla-extension','-Wno-mismatched-tags'])
+else:
+ env.Append(CXXFLAGS = ['-Wlogical-op','-Wnoexcept','-Wstrict-null-sentinel'])
+
+if env['cppthreads']:
+ env.Append(CPPDEFINES = [('ARM_COMPUTE_CPP_SCHEDULER', 1)])
+
+if env['openmp']:
+ if 'clang++' in cpp_compiler:
+ print "Clang does not support OpenMP. Use scheduler=cpp."
+ Exit(1)
+
+ env.Append(CPPDEFINES = [('ARM_COMPUTE_OPENMP_SCHEDULER', 1)])
+ env.Append(CXXFLAGS = ['-fopenmp'])
+ env.Append(LINKFLAGS = ['-fopenmp'])
+
+prefix = ""
+if env['arch'] == 'armv7a':
+ env.Append(CXXFLAGS = ['-march=armv7-a', '-mthumb', '-mfpu=neon'])
+
+ if env['os'] == 'linux':
+ prefix = "arm-linux-gnueabihf-"
+ env.Append(CXXFLAGS = ['-mfloat-abi=hard'])
+ elif env['os'] == 'bare_metal':
+ prefix = "arm-eabi-"
+ env.Append(CXXFLAGS = ['-mfloat-abi=hard'])
+ elif env['os'] == 'android':
+ prefix = "arm-linux-androideabi-"
+ env.Append(CXXFLAGS = ['-mfloat-abi=softfp'])
+elif env['arch'] == 'arm64-v8a':
+ env.Append(CXXFLAGS = ['-march=armv8-a'])
+ env.Append(CPPDEFINES = ['ARM_COMPUTE_AARCH64_V8A','NO_DOT_IN_TOOLCHAIN'])
+ if env['os'] == 'linux':
+ prefix = "aarch64-linux-gnu-"
+ elif env['os'] == 'bare_metal':
+ prefix = "aarch64-elf-"
+ elif env['os'] == 'android':
+ prefix = "aarch64-linux-android-"
+ if 'clang++' in cpp_compiler:
+ env.Append(CXXFLAGS = ['-no-integrated-as'])
+elif env['arch'] == 'arm64-v8.2-a':
+ env.Append(CXXFLAGS = ['-march=armv8.2-a+fp16']) # explicitly enable fp16 extension otherwise __ARM_FEATURE_FP16_VECTOR_ARITHMETIC is undefined
+ env.Append(CPPDEFINES = ['ARM_COMPUTE_AARCH64_V8_2','NO_DOT_IN_TOOLCHAIN'])
+ if 'clang++' in cpp_compiler:
+ env.Append(CXXFLAGS = ['-no-integrated-as'])
+ if env['os'] == 'linux':
+ prefix = "aarch64-linux-gnu-"
+ elif env['os'] == 'bare_metal':
+ prefix = "aarch64-elf-"
+ elif env['os'] == 'android':
+ prefix = "aarch64-linux-android-"
+elif env['arch'] == 'x86_32':
+ env.Append(CCFLAGS = ['-m32'])
+ env.Append(LINKFLAGS = ['-m32'])
+elif env['arch'] == 'x86_64':
+ env.Append(CCFLAGS = ['-m64'])
+ env.Append(LINKFLAGS = ['-m64'])
+
+if env['build'] == 'native':
+ prefix = ""
+
+env['CC'] = env['compiler_cache']+" "+prefix + c_compiler
+env['CXX'] = env['compiler_cache']+" "+prefix + cpp_compiler
+env['LD'] = prefix + "ld"
+env['AS'] = prefix + "as"
+env['AR'] = prefix + "ar"
+env['RANLIB'] = prefix + "ranlib"
if not GetOption("help"):
- SConscript('sconscript', variant_dir='#build/%s/arm_compute' % env['build_dir'], duplicate=0)
+ try:
+ compiler_ver = subprocess.check_output(env['CXX'].split() + ["-dumpversion"]).strip()
+ except OSError:
+ print("ERROR: Compiler '%s' not found" % env['CXX'])
+ Exit(1)
+
+ if 'clang++' not in cpp_compiler:
+ if env['arch'] == 'arm64-v8.2-a' and not version_at_least(compiler_ver, '6.2.1'):
+ print "GCC 6.2.1 or newer is required to compile armv8.2-a code"
+ Exit(1)
+ elif env['arch'] == 'arm64-v8a' and not version_at_least(compiler_ver, '4.9'):
+ print "GCC 4.9 or newer is required to compile NEON code for AArch64"
+ Exit(1)
+
+ if version_at_least(compiler_ver, '6.1'):
+ env.Append(CXXFLAGS = ['-Wno-ignored-attributes'])
+
+ if compiler_ver == '4.8.3':
+ env.Append(CXXFLAGS = ['-Wno-array-bounds'])
+
+if env['standalone']:
+ env.Append(CXXFLAGS = ['-fPIC'])
+ env.Append(LINKFLAGS = ['-static-libgcc','-static-libstdc++'])
+
+if env['Werror']:
+ env.Append(CXXFLAGS = ['-Werror'])
+
+if env['os'] == 'android':
+ env.Append(CPPDEFINES = ['ANDROID'])
+ env.Append(LINKFLAGS = ['-pie', '-static-libstdc++'])
+elif env['os'] == 'bare_metal':
+ env.Append(LINKFLAGS = ['-static'])
+ env.Append(LINKFLAGS = ['-specs=rdimon.specs'])
+ env.Append(CXXFLAGS = ['-fPIC'])
+ env.Append(CPPDEFINES = ['NO_MULTI_THREADING'])
+ env.Append(CPPDEFINES = ['BARE_METAL'])
+
+if env['opencl']:
+ if env['os'] in ['bare_metal'] or env['standalone']:
+ print("Cannot link OpenCL statically, which is required for bare metal / standalone builds")
+ Exit(1)
+
+if env['gles_compute']:
+ if env['os'] in ['bare_metal'] or env['standalone']:
+ print("Cannot link OpenGLES statically, which is required for bare metal / standalone builds")
+ Exit(1)
+
+if env["os"] not in ["android", "bare_metal"] and (env['opencl'] or env['cppthreads']):
+ env.Append(LIBS = ['pthread'])
+
+if env['opencl'] or env['gles_compute']:
+ if env['embed_kernels']:
+ env.Append(CPPDEFINES = ['EMBEDDED_KERNELS'])
+
+if env['debug']:
+ env['asserts'] = True
+ env['logging'] = True
+ env.Append(CXXFLAGS = ['-O0','-g','-gdwarf-2'])
+ env.Append(CPPDEFINES = ['ARM_COMPUTE_DEBUG_ENABLED'])
+else:
+ env.Append(CXXFLAGS = ['-O3','-ftree-vectorize'])
+
+if env['asserts']:
+ env.Append(CPPDEFINES = ['ARM_COMPUTE_ASSERTS_ENABLED'])
+ env.Append(CXXFLAGS = ['-fstack-protector-strong'])
+
+if env['logging']:
+ env.Append(CPPDEFINES = ['ARM_COMPUTE_LOGGING_ENABLED'])
+
+env.Append(CPPPATH = ['#/include', "#"])
+env.Append(CXXFLAGS = env['extra_cxx_flags'])
+
+Export('version_at_least')
+
+if env['opencl']:
+ SConscript("./opencl-1.2-stubs/SConscript", variant_dir="build/%s/opencl-1.2-stubs" % env['build_dir'], duplicate=0)
+
+if env['gles_compute'] and env['os'] != 'android':
+ env.Append(CPPPATH = ['#/include/linux'])
+ SConscript("./opengles-3.1-stubs/SConscript", variant_dir="build/%s/opengles-3.1-stubs" % env['build_dir'], duplicate=0)
+
+SConscript('./SConscript', variant_dir='#build/%s' % env['build_dir'], duplicate=0)
+
+if env['examples'] and env['os'] != 'bare_metal':
+ SConscript('./examples/SConscript', variant_dir='#build/%s/examples' % env['build_dir'], duplicate=0)
+
+if env['os'] != 'bare_metal':
+ SConscript('./tests/SConscript', variant_dir='#build/%s/tests' % env['build_dir'], duplicate=0)
projects / platform / upstream / armcl.git / blobdiff