ardour/livetrax
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add configure-time option to use lld as the linker (on linux)

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this cuts about 15 seconds off the total linker time on a 16 core ryzen threadripper
This commit is contained in:
Paul Davis 2019-09-24 17:36:22 -06:00
parent 1f4b409d7e
commit d48e916ef1
1 changed files with 14 additions and 1 deletions
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@ -836,6 +836,7 @@ def options(opt):
'--qm-dsp-include', type='string', action='store', '--qm-dsp-include', type='string', action='store',
dest='qm_dsp_include', default='/usr/include/qm-dsp', dest='qm_dsp_include', default='/usr/include/qm-dsp',
help='directory where the header files of qm-dsp can be found') help='directory where the header files of qm-dsp can be found')
opt.add_option ('--use-lld', action='store_true', default=False, dest='use_lld', help='Use LLD linker instead of ld (Linux only)')
for i in children: for i in children:
opt.recurse(i) opt.recurse(i)
@ -1235,10 +1236,22 @@ int main () { return 0; }
conf.env['BUILD_CORECRAPPITA'] = any('coreaudio' in b for b in backends) conf.env['BUILD_CORECRAPPITA'] = any('coreaudio' in b for b in backends)
conf.env['BUILD_PULSEAUDIO'] = any('pulseaudio' in b for b in backends) conf.env['BUILD_PULSEAUDIO'] = any('pulseaudio' in b for b in backends)
if (Options.options.use_lld):
if re.search ("linux", sys.platform) != None and Options.options.dist_target != 'mingw' and conf.env['BUILD_PABACKEND']:
print("lld is only for Linux builds")
else:
try:
conf.find_program ('lld')
conf.env.append_value('LINKFLAGS', '-fuse-ld=lld')
print ("Using the lld linker")
except conf.errors.ConfigurationError:
pass
if re.search ("linux", sys.platform) != None and Options.options.dist_target != 'mingw' and conf.env['BUILD_PABACKEND']: if re.search ("linux", sys.platform) != None and Options.options.dist_target != 'mingw' and conf.env['BUILD_PABACKEND']:
print("PortAudio Backend is not for Linux") print("PortAudio Backend is not for Linux")
sys.exit(1) sys.exit(1)
if sys.platform != 'darwin' and conf.env['BUILD_CORECRAPPITA']: if sys.platform != 'darwin' and conf.env['BUILD_CORECRAPPITA']:
print("Coreaudio backend is only available for OSX") print("Coreaudio backend is only available for OSX")
sys.exit(1) sys.exit(1)