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glibcextract.py: Add compile_c_snippet

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It might be used on tests to check if a snippet build with the provided
compiler and flags.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
This commit is contained in:
Adhemerval Zanella 2022-08-10 16:24:06 -03:00
parent 1c9bc1b6e5
commit 841afa116e
1 changed files with 19 additions and 0 deletions
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scripts/glibcextract.py
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@ -17,6 +17,7 @@
# License along with the GNU C Library; if not, see
# <https://www.gnu.org/licenses/>.
import collections
import os.path
import re
import subprocess
@ -173,3 +174,21 @@ def compare_macro_consts(source_1, source_2, cc, macro_re, exclude_re=None,
if not allow_extra_2:
ret = 1
return ret
CompileResult = collections.namedtuple("CompileResult", "returncode output")
def compile_c_snippet(snippet, cc, extra_cc_args=''):
"""Compile and return whether the SNIPPET can be build with CC along
EXTRA_CC_ARGS compiler flags. Return a CompileResult with RETURNCODE
being 0 for success, or the failure value and the compiler output.
"""
with tempfile.TemporaryDirectory() as temp_dir:
c_file_name = os.path.join(temp_dir, 'test.c')
obj_file_name = os.path.join(temp_dir, 'test.o')
with open(c_file_name, 'w') as c_file:
c_file.write(snippet + '\n')
cmd = cc.split() + extra_cc_args.split() + ['-c', '-o', obj_file_name,
c_file_name]
r = subprocess.run(cmd, check=False, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
return CompileResult(r.returncode, r.stdout)