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#!/usr/bin/python
def c_compiler_rule(b, name, description, compiler, flags):
command = "%s -MMD -MF $out.d %s -c -o $out $in" % (compiler, flags)
b.rule(name, command, description + " $out", depfile="$out.d")
from optparse import OptionParser
import os
from subprocess import *
import sys
srcdir = os.path.dirname(sys.argv[0])
sys.path.insert(0, os.path.join(srcdir, 'build'))
import metabuild
p = OptionParser()
p.add_option('--with-llvm-config', metavar='PATH',
help='use given llvm-config script')
p.add_option('-g', metavar='GENERATOR', default='make',
help='use given generator (default: make)')
(options, args) = p.parse_args()
llvm_config_exe = options.with_llvm_config or "llvm-config"
def llvm_config(args):
try:
proc = Popen([llvm_config_exe] + args, stdout=PIPE)
return proc.communicate()[0].rstrip().replace('\n', ' ')
except OSError:
print "Error executing llvm-config."
print "Please ensure that llvm-config is in your $PATH, or use --with-llvm-config."
sys.exit(1)
llvm_bindir = llvm_config(['--bindir'])
llvm_core_libs = llvm_config(['--ldflags', '--libs', 'core', 'bitreader', 'bitwriter'])
llvm_cxxflags = llvm_config(['--cxxflags']) + ' -fno-exceptions -fno-rtti'
llvm_clang = os.path.join(llvm_bindir, 'clang')
llvm_link = os.path.join(llvm_bindir, 'llvm-link')
llvm_opt = os.path.join(llvm_bindir, 'opt')
default_targets = ['nvptx--nvidiacl', 'nvptx64--nvidiacl', 'r600--']
targets = args
if not targets:
targets = default_targets
b = metabuild.from_name(options.g)
b.rule("LLVM_AS", "%s -o $out $in" % os.path.join(llvm_bindir, "llvm-as"),
'LLVM-AS $out')
b.rule("LLVM_LINK", command = llvm_link + " -o $out $in",
description = 'LLVM-LINK $out')
b.rule("OPT", command = llvm_opt + " -O3 -o $out $in",
description = 'OPT $out')
c_compiler_rule(b, "LLVM_TOOL_CXX", 'CXX', 'c++', llvm_cxxflags)
b.rule("LLVM_TOOL_LINK", "c++ -o $out $in %s" % llvm_core_libs, 'LINK $out')
prepare_builtins = os.path.join('utils', 'prepare-builtins')
b.build(os.path.join('utils', 'prepare-builtins.o'), "LLVM_TOOL_CXX",
os.path.join(srcdir, 'utils', 'prepare-builtins.cpp'))
b.build(prepare_builtins, "LLVM_TOOL_LINK",
os.path.join('utils', 'prepare-builtins.o'))
b.rule("PREPARE_BUILTINS", "%s -o $out $in" % prepare_builtins,
'PREPARE-BUILTINS $out')
manifest_deps = set([sys.argv[0], os.path.join(srcdir, 'build', 'metabuild.py'),
os.path.join(srcdir, 'build', 'ninja_syntax.py')])
for target in targets:
(t_arch, t_vendor, t_os) = target.split('-')
archs = [t_arch]
if t_arch == 'nvptx' or t_arch == 'nvptx64':
archs.append('ptx')
archs.append('generic')
subdirs = []
for arch in archs:
subdirs.append("%s-%s-%s" % (arch, t_vendor, t_os))
subdirs.append("%s-%s" % (arch, t_os))
subdirs.append(arch)
subdirs = [subdir for subdir in subdirs
if os.path.isdir(os.path.join(srcdir, subdir, 'include')) or
os.path.isfile(os.path.join(srcdir, subdir, 'lib', 'SOURCES'))]
clang_cl_includes = ' '.join(["-I%s" % os.path.join(srcdir, subdir, 'include')
for subdir in subdirs])
# The rule for building a .bc file for the specified architecture using clang.
clang_bc_flags = "-ccc-host-triple %s -I`dirname $in` %s " \
"-Dcl_clang_storage_class_specifiers " \
"-Dcl_khr_fp64 " \
"-emit-llvm" % (target, clang_cl_includes)
clang_bc_rule = "CLANG_CL_BC_" + target
c_compiler_rule(b, clang_bc_rule, "LLVM-CC", llvm_clang, clang_bc_flags)
objects = []
sources_seen = set()
for subdir in subdirs:
src_libdir = os.path.join(srcdir, subdir, 'lib')
if not os.path.isdir(src_libdir):
continue
subdir_list_file = os.path.join(src_libdir, 'SOURCES')
manifest_deps.add(subdir_list_file)
for src in open(subdir_list_file).readlines():
src = src.rstrip()
if src not in sources_seen:
sources_seen.add(src)
obj = os.path.join(target, 'lib', src + '.bc')
objects.append(obj)
src_file = os.path.join(src_libdir, src)
ext = os.path.splitext(src)[1]
if ext == '.ll':
b.build(obj, 'LLVM_AS', src_file)
else:
b.build(obj, clang_bc_rule, src_file)
builtins_link_bc = os.path.join(target, 'lib', 'builtins.link.bc')
builtins_opt_bc = os.path.join(target, 'lib', 'builtins.opt.bc')
builtins_bc = os.path.join(target, 'lib', 'builtins.bc')
b.build(builtins_link_bc, "LLVM_LINK", objects)
b.build(builtins_opt_bc, "OPT", builtins_link_bc)
b.build(builtins_bc, "PREPARE_BUILTINS", builtins_opt_bc, prepare_builtins)
b.rule("configure", command = ' '.join(sys.argv), description = 'CONFIGURE',
generator = True)
b.build(b.output_filename(), 'configure', list(manifest_deps))
b.finish()
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