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e14171cc59
Currently, we can't build meson into SDKs because we don't autogenerate the required meson.cross file. Enable this by using the post-relocate hooks and generating a meson.cross file based on the SDK environment passed into the post-relocate hook. (From OE-Core rev: aabb846b165fec218024a7a57f3c9fdaa2514179) Signed-off-by: Martin Kelly <mkelly@xevo.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
63 lines
1.6 KiB
Python
Executable File
63 lines
1.6 KiB
Python
Executable File
#!/usr/bin/env python3
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import os
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import sys
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def bail(msg):
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print(msg, file=sys.stderr)
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sys.exit(1)
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_MARKER = '@@'
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def transform_line(line):
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# Substitute any special markers of this form:
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# @@ENV@@
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# with the value of ENV, split into meson array syntax.
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start = line.find(_MARKER)
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if start == -1:
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return line
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end = line.rfind(_MARKER)
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if end == start:
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return line
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# Lookup value of the env var.
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var = line[start+len(_MARKER):end]
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try:
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val = os.environ[var]
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except KeyError:
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bail('cannot generate meson.cross; env var %s not set' % var)
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# Transform into meson array.
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val = ["'%s'" % x for x in val.split()]
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val = ', '.join(val)
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val = '[%s]' % val
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before = line[:start]
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after = line[end+len(_MARKER):]
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return '%s%s%s' % (before, val, after)
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# Make sure this is really an SDK extraction environment.
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try:
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sysroot = os.environ['OECORE_NATIVE_SYSROOT']
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except KeyError:
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bail('OECORE_NATIVE_SYSROOT env var must be set')
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cross_file = os.path.join(sysroot, 'usr/share/meson/meson.cross')
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tmp_cross_file = '%s.tmp' % cross_file
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# Read through and transform the current meson.cross.
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lines = []
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with open(cross_file, 'r') as f:
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for line in f:
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lines.append(transform_line(line))
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# Write the transformed result to a tmp file and atomically rename it. In case
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# we crash during the file write, we don't want an invalid meson.cross file.
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with open(tmp_cross_file, 'w') as f:
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for line in lines:
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f.write(line)
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f.flush()
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os.fdatasync(f.fileno())
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os.rename(tmp_cross_file, cross_file)
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