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waifulib: allow compiling using host clang and NDK sysroots, thus enabling building engine from any environment that has clang(termux as example)

pull/2/head
Alibek Omarov 5 years ago
parent
commit
d1ac48b2a1
  1. 108
      scripts/waifulib/xcompile.py

108
scripts/waifulib/xcompile.py

@ -38,16 +38,18 @@ class Android: @@ -38,16 +38,18 @@ class Android:
ndk_rev = 0
is_hardfloat = False
clang = False
def __init__(self, ctx, arch, toolchain, api):
self.ctx = ctx
self.api = api
for i in ['ANDROID_NDK_HOME', 'ANDROID_NDK']:
self.ndk_home = os.getenv(i)
if self.ndk_home != None:
break
if not self.ndk_home:
conf.fatal('Set ANDROID_NDK_HOME environment variable pointing to the root of Android NDK!')
ctx.fatal('Set ANDROID_NDK_HOME environment variable pointing to the root of Android NDK!')
# TODO: this were added at some point of NDK development
# but I don't know at which version
@ -86,13 +88,18 @@ class Android: @@ -86,13 +88,18 @@ class Android:
elif self.ndk_rev >= 19 and self.api < 16:
Logs.warn('API level automatically was set to 16 due to NDK support')
self.api = 16
else: self.api = api
self.toolchain_path = self.gen_toolchain_path()
# TODO: Crystax support?
# TODO: Support for everything else than linux-x86_64?
# TODO: Determine if I actually need to implement listed above
def is_host(self):
'''
Checks if we using host compiler(implies clang)
'''
return self.toolchain == 'host'
def is_arm(self):
'''
Checks if selected architecture is **32-bit** ARM
@ -126,7 +133,16 @@ class Android: @@ -126,7 +133,16 @@ class Android:
def is_hardfp(self):
return self.is_hardfloat
def gen_toolchain_path(self):
def ndk_triplet(self):
if self.is_x86():
triplet = 'i686-linux-android'
elif self.is_arm():
triplet = 'arm-linux-androideabi'
else:
triplet = self.arch + '-linux-android'
return triplet
def gen_gcc_toolchain_path(self):
path = 'toolchains'
if sys.platform.startswith('linux'):
@ -149,13 +165,6 @@ class Android: @@ -149,13 +165,6 @@ class Android:
raise Exception('Clang is not supported for this NDK')
toolchain_folder = 'llvm'
if self.is_x86():
triplet = 'i686-linux-android{}-'.format(self.api)
elif self.is_arm():
triplet = 'armv7a-linux-androideabi{}-'.format(self.api)
else:
triplet = self.arch + '-linux-android{}-'.format(self.api)
else:
if self.is_x86() or self.is_amd64():
toolchain_folder = self.arch + '-' + self.toolchain
@ -164,42 +173,70 @@ class Android: @@ -164,42 +173,70 @@ class Android:
else:
toolchain_folder = self.arch + '-linux-android-' + self.toolchain
return os.path.abspath(os.path.join(self.ndk_home, path, toolchain_folder, 'prebuilt', toolchain_host))
def gen_toolchain_path(self):
if self.is_clang():
if self.is_x86():
triplet = 'i686-linux-android-'
triplet = 'i686-linux-android{}-'.format(self.api)
elif self.is_arm():
triplet = 'arm-linux-androideabi-'
triplet = 'armv7a-linux-androideabi{}-'.format(self.api)
else:
triplet = self.arch + '-linux-android-'
return os.path.join(path, toolchain_folder, 'prebuilt', toolchain_host, 'bin', triplet)
triplet = self.arch + '-linux-android{}-'.format(self.api)
else:
triplet = self.ndk_triplet() + '-'
return os.path.join(self.gen_gcc_toolchain_path(), 'bin', triplet)
def cc(self):
return os.path.abspath(os.path.join(self.ndk_home, self.toolchain_path + ('clang' if self.is_clang() else 'gcc')))
if self.is_host():
return 'clang'
return self.toolchain_path + ('clang' if self.is_clang() else 'gcc')
def cxx(self):
return os.path.abspath(os.path.join(self.ndk_home, self.toolchain_path + ('clang++' if self.is_clang() else 'g++')))
if self.is_host():
return 'clang++'
return self.toolchain_path + ('clang++' if self.is_clang() else 'g++')
def system_stl(self):
# TODO: proper STL support
return os.path.abspath(os.path.join(self.ndk_home, 'sources', 'cxx-stl', 'system', 'include'))
def libsysroot(self):
arch = self.arch
if self.is_arm():
arch = 'arm'
elif self.is_arm64():
arch = 'arm64'
path = 'platforms/android-{}/arch-{}'.format(self.api, arch)
return os.path.abspath(os.path.join(self.ndk_home, path))
def sysroot(self):
if self.ndk_rev >= 19:
if self.ndk_rev >= 19 or self.is_host():
return os.path.abspath(os.path.join(self.ndk_home, 'sysroot'))
else:
arch = self.arch
if self.is_arm():
arch = 'arm'
elif self.is_arm64():
arch = 'arm64'
path = 'platforms/android-{}/arch-{}'.format(self.api, arch)
return self.libsysroot()
return os.path.abspath(os.path.join(self.ndk_home, path))
def clang_host_triplet(self):
triplet = ''
if self.is_arm():
triplet += 'arm'
elif self.is_x86():
triplet += 'i686'
else:
triplet += self.arch
triplet += '-linux-android'
return triplet
def cflags(self):
cflags = []
if self.is_host():
cflags += ['-nostdlib', '--target=%s' % self.clang_host_triplet()]
if self.ndk_rev < 20:
cflags = ['--sysroot={0}'.format(self.sysroot())]
cflags += ['--sysroot={0}'.format(self.sysroot())]
elif self.is_host():
cflags += ['-isysroot={0}'.format(self.sysroot())]
cflags += ['-DANDROID', '-D__ANDROID__']
cflags += ['-I{0}'.format(self.system_stl())]
if self.is_arm():
@ -222,15 +259,26 @@ class Android: @@ -222,15 +259,26 @@ class Android:
# they go before object list
def linkflags(self):
linkflags = []
if self.ndk_rev < 20:
linkflags = ['--sysroot={0}'.format(self.sysroot())]
if self.is_host():
linkflags += ['-fuse-ld=lld', '-nostdlib', '--target=%s' % self.clang_host_triplet(),
'--gcc-toolchain=%s' % self.gen_gcc_toolchain_path()]
if self.ndk_rev < 20 or self.is_host():
linkflags += ['--sysroot={0}'.format(self.libsysroot())]
if self.is_host():
linkflags += ['-L{0}/usr/lib/{1}'.format(self.sysroot(), self.ndk_triplet()),
'-L{0}/sysroot/usr/lib/{1}/'.format(self.gen_gcc_toolchain_path(), self.ndk_triplet())]
return linkflags
def ldflags(self):
ldflags = ['-lgcc', '-no-canonical-prefixes']
if self.is_arm():
if self.arch == 'armeabi-v7a':
ldflags += ['-march=armv7-a', '-Wl,--fix-cortex-a8', '-mthumb']
ldflags += ['-march=armv7-a']
if not self.is_host(): # lld only
ldflags += ['-Wl,--fix-cortex-a8']
ldflags += ['-mthumb']
if self.is_hardfloat:
ldflags += ['-Wl,--no-warn-mismatch', '-lm_hard']
else:

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