fix the get_ver of musl libc

python/paddle/fluid/core.py

@@ -200,10 +200,16 @@ def pre_load(dso_name):
     load_dso(dso_path)
 
 
-def get_glibc_ver():
-    return "musl_" + run_shell_command("ldd  2>&1 | awk '/Version/{print $NF}'")
-    #return run_shell_command("ldd --version | awk '/ldd/{print $NF}'")
+def get_libc_ver():
+    ldd_glibc = run_shell_command("ldd --version | awk '/ldd/{print $NF}'")
+    if ldd_glibc is not None:
+        return ("glibc", ldd_glibc)
 
+    ldd_musl = run_shell_command("ldd 2>&1 | awk '/Version/{print $NF}'")
+    if ldd_musl is not None:
+        return ("musl", ldd_musl)
+    
+    return (None, None)
 
 def less_than_ver(a, b):
     if a is None or b is None:
@@ -227,13 +233,14 @@ def less_than_ver(a, b):
 # For paddle, the problem is that 'libgomp' is a DSO with static TLS, and it is loaded after 14 DSOs.
 # So, here is a tricky way to solve the problem by pre load 'libgomp' before 'core_avx.so'.
 # The final solution is to upgrade glibc to > 2.22 on the target system.
-if platform.system().lower() == 'linux' and False and less_than_ver(get_glibc_ver(),
-                                                          '2.23'):
-    try:
-        pre_load('libgomp')
-    except Exception as e:
-        # NOTE(zhiqiu): do not abort if failed, since it may success when import core_avx.so
-        sys.stderr.write('Error: Can not preload libgomp.so')
+if platform.system().lower() == 'linux':
+    libc_type, libc_ver = get_libc_ver()
+    if libc_type == 'glibc' and less_than_ver(libc_ver,'2.23'):
+        try:
+            pre_load('libgomp')
+        except Exception as e:
+            # NOTE(zhiqiu): do not abort if failed, since it may success when import core_avx.so
+            sys.stderr.write('Error: Can not preload libgomp.so')
 
 load_noavx = False