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108 lines
2.6 KiB
Python
108 lines
2.6 KiB
Python
#!/usr/bin/env python
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# encoding: utf-8
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# Thomas Nagy, 2008-2018 (ita)
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"""
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Assembly support, used by tools such as gas and nasm
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To declare targets using assembly::
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def configure(conf):
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conf.load('gcc gas')
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def build(bld):
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bld(
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features='c cstlib asm',
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source = 'test.S',
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target = 'asmtest')
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bld(
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features='asm asmprogram',
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source = 'test.S',
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target = 'asmtest')
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Support for pure asm programs and libraries should also work::
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def configure(conf):
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conf.load('nasm')
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conf.find_program('ld', 'ASLINK')
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def build(bld):
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bld(
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features='asm asmprogram',
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source = 'test.S',
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target = 'asmtest')
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"""
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import re
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from waflib import Errors, Logs, Task
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from waflib.Tools.ccroot import link_task, stlink_task
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from waflib.TaskGen import extension
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from waflib.Tools import c_preproc
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re_lines = re.compile(
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'^[ \t]*(?:%)[ \t]*(ifdef|ifndef|if|else|elif|endif|include|import|define|undef)[ \t]*(.*)\r*$',
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re.IGNORECASE | re.MULTILINE)
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class asm_parser(c_preproc.c_parser):
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def filter_comments(self, node):
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code = node.read()
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code = c_preproc.re_nl.sub('', code)
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code = c_preproc.re_cpp.sub(c_preproc.repl, code)
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return re_lines.findall(code)
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class asm(Task.Task):
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"""
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Compiles asm files by gas/nasm/yasm/...
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"""
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color = 'BLUE'
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run_str = '${AS} ${ASFLAGS} ${ASMPATH_ST:INCPATHS} ${ASMDEFINES_ST:DEFINES} ${AS_SRC_F}${SRC} ${AS_TGT_F}${TGT}'
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def scan(self):
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if self.env.ASM_NAME == 'gas':
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return c_preproc.scan(self)
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elif self.env.ASM_NAME == 'nasm':
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Logs.warn('The Nasm dependency scanner is incomplete!')
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try:
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incn = self.generator.includes_nodes
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except AttributeError:
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raise Errors.WafError('%r is missing the "asm" feature' % self.generator)
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if c_preproc.go_absolute:
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nodepaths = incn
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else:
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nodepaths = [x for x in incn if x.is_child_of(x.ctx.srcnode) or x.is_child_of(x.ctx.bldnode)]
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tmp = asm_parser(nodepaths)
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tmp.start(self.inputs[0], self.env)
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return (tmp.nodes, tmp.names)
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@extension('.s', '.S', '.asm', '.ASM', '.spp', '.SPP')
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def asm_hook(self, node):
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"""
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Binds the asm extension to the asm task
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:param node: input file
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:type node: :py:class:`waflib.Node.Node`
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"""
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return self.create_compiled_task('asm', node)
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class asmprogram(link_task):
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"Links object files into a c program"
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run_str = '${ASLINK} ${ASLINKFLAGS} ${ASLNK_TGT_F}${TGT} ${ASLNK_SRC_F}${SRC}'
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ext_out = ['.bin']
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inst_to = '${BINDIR}'
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class asmshlib(asmprogram):
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"Links object files into a c shared library"
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inst_to = '${LIBDIR}'
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class asmstlib(stlink_task):
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"Links object files into a c static library"
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pass # do not remove
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def configure(conf):
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conf.env.ASMPATH_ST = '-I%s'
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conf.env.ASMDEFINES_ST = '-D%s'
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