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From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org, Florian Weimer <fweimer@redhat.com>
Subject: [PATCH v2 1/5] glibcextract.py: Add compile_c_snippet
Date: Wed, 10 Aug 2022 14:24:43 -0300	[thread overview]
Message-ID: <20220810172447.1502169-2-adhemerval.zanella@linaro.org> (raw)
In-Reply-To: <20220810172447.1502169-1-adhemerval.zanella@linaro.org>

It might be used on tests to check if a snippet build with the provided
compiler and flags.
---
 scripts/glibcextract.py | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/scripts/glibcextract.py b/scripts/glibcextract.py
index 43ab58ffe2..71d9ea1acc 100644
--- a/scripts/glibcextract.py
+++ b/scripts/glibcextract.py
@@ -21,6 +21,7 @@ import os.path
 import re
 import subprocess
 import tempfile
+import collections
 
 
 def compute_c_consts(sym_data, cc):
@@ -173,3 +174,22 @@ 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)
+        # Compilation has to be from stdin to avoid the temporary file
+        # name being written into the generated dependencies.
+        cmd = ('%s %s -c -o %s -x c - < %s' % (cc, extra_cc_args,
+            obj_file_name, c_file_name))
+        r = subprocess.run(cmd, shell=True, capture_output=True)
+        return CompileResult(r.returncode, r.stderr)
-- 
2.34.1


  reply	other threads:[~2022-08-10 17:24 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-10 17:24 [PATCH v2 0/5] Fix sys/mount.h and kernel header tests Adhemerval Zanella
2022-08-10 17:24 ` Adhemerval Zanella [this message]
2022-08-10 17:35   ` [PATCH v2 1/5] glibcextract.py: Add compile_c_snippet Florian Weimer
2022-08-10 19:00     ` Adhemerval Zanella Netto
2022-08-10 17:38   ` Florian Weimer
2022-08-10 17:24 ` [PATCH v2 2/5] linux: Use compile_c_snippet to check linux/pidfd.h availability Adhemerval Zanella
2022-08-10 17:38   ` Florian Weimer
2022-08-10 17:24 ` [PATCH v2 3/5] linux: Mimic kernel defition for BLOCK_SIZE Adhemerval Zanella
2022-08-10 17:36   ` Florian Weimer
2022-08-10 17:24 ` [PATCH v2 4/5] linux: Use compile_c_snippet to check linux/mount.h availability Adhemerval Zanella
2022-08-10 17:36   ` Florian Weimer
2022-08-10 17:24 ` [PATCH v2 5/5] linux: Fix sys/mount.h usage with kernel headers Adhemerval Zanella
2022-08-11 21:57   ` Florian Weimer
2022-08-12 12:45     ` Adhemerval Zanella Netto

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