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[compiler-rt][lit] Check glibc version without external packages #158387

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[compiler-rt][lit] Check glibc version without external packages #158387

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f6d4005
[compiler-rt][lit] Check glibc without external packages
aeubanks Sep 13, 2025
aefe79b
remove unnecessary function
aeubanks Sep 13, 2025
f6a9946
format
aeubanks Sep 13, 2025
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48 changes: 22 additions & 26 deletions compiler-rt/test/lit.common.cfg.py
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Original file line number Diff line number Diff line change
Expand Up @@ -708,31 +708,7 @@ def get_macos_aligned_version(macos_vers):
config.substitutions.append(("%push_to_device", "echo "))
config.substitutions.append(("%adb_shell", "echo "))

if config.target_os == "Linux":
def add_glibc_versions(ver_string):
if config.android:
return

from distutils.version import LooseVersion

ver = LooseVersion(ver_string)
any_glibc = False
for required in [
"2.19",
"2.27",
"2.30",
"2.33",
"2.34",
"2.37",
"2.38",
"2.40",
]:
if ver >= LooseVersion(required):
config.available_features.add("glibc-" + required)
any_glibc = True
if any_glibc:
config.available_features.add("glibc")

if config.target_os == "Linux" and not config.android:
# detect whether we are using glibc, and which version
cmd_args = [
config.clang.strip(),
Expand All @@ -754,7 +730,27 @@ def add_glibc_versions(ver_string):
try:
sout, _ = cmd.communicate(b"#include <features.h>")
m = dict(re.findall(r"#define (__GLIBC__|__GLIBC_MINOR__) (\d+)", str(sout)))
add_glibc_versions(f"{m['__GLIBC__']}.{m['__GLIBC_MINOR__']}")
major = int(m["__GLIBC__"])
minor = int(m["__GLIBC_MINOR__"])
any_glibc = False
for required in [
(2, 19),
(2, 27),
(2, 30),
(2, 33),
(2, 34),
(2, 37),
(2, 38),
(2, 40),
]:
if (major, minor) >= required:
(required_major, required_minor) = required
config.available_features.add(
f"glibc-{required_major}.{required_minor}"
)
any_glibc = True
if any_glibc:
config.available_features.add("glibc")
except:
pass

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