1 files changed, 114 insertions, 0 deletions
diff --git a/src/test/generate-sym-test.py b/src/test/generate-sym-test.py
new file mode 100755
index 0000000..028d108
--- /dev/null
+++ b/src/test/generate-sym-test.py
@@ -0,0 +1,114 @@
+#!/usr/bin/env python3
+# SPDX-License-Identifier: LGPL-2.1-or-later
+
+import os
+import re
+import sys
+
+def process_sym_file(file):
+    for line in file:
+        m = re.search(r'^ +([a-zA-Z0-9_]+);', line)
+        if m:
+            if m[1] == 'sd_bus_object_vtable_format':
+                print('        {{"{0}", &{0}}},'.format(m[1]))
+            else:
+                print('        {{"{0}", {0}}},'.format(m[1]))
+
+def process_source_file(file):
+    for line in file:
+        # Functions
+        m = re.search(r'^_public_\s+(\S+\s+)+\**(\w+)\s*\(', line)
+        if m:
+            print('        {{ "{0}", {0} }},'.format(m[2]))
+        # Variables
+        m = re.search(r'^_public_\s+(\S+\s+)+\**(\w+)\s*=', line)
+        if m:
+            print('        {{ "{0}", &{0} }},'.format(m[2]))
+        # Functions defined through a macro
+        m = re.search(r'^DEFINE_PUBLIC_TRIVIAL_REF_FUNC\([^,]+,\s*(\w+)\s*\)', line)
+        if m:
+            print('        {{ "{0}_ref", {0}_ref }},'.format(m[1]))
+        m = re.search(r'^DEFINE_PUBLIC_TRIVIAL_UNREF_FUNC\([^,]+,\s*(\w+)\s*,', line)
+        if m:
+            print('        {{ "{0}_unref", {0}_unref }},'.format(m[1]))
+        m = re.search(r"^DEFINE_PUBLIC_TRIVIAL_REF_UNREF_FUNC\([^,]+,\s*(\w+)\s*,", line)
+        if m:
+            print('        {{ "{0}_ref", {0}_ref }},'.format(m[1]))
+            print('        {{ "{0}_unref", {0}_unref }},'.format(m[1]))
+
+print('''/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+''')
+
+for header in sys.argv[3:]:
+    print('#include "{}"'.format(header.split('/')[-1]))
+
+print('''
+/* We want to check deprecated symbols too, without complaining */
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+''')
+
+print('''
+struct symbol {
+        const char *name;
+        const void *symbol;
+};
+static struct symbol symbols_from_sym[] = {''')
+
+with open(sys.argv[1], "r") as f:
+    process_sym_file(f)
+
+print('''        {}
+}, symbols_from_source[] = {''')
+
+for dirpath, _, filenames in sorted(os.walk(sys.argv[2])):
+    for filename in sorted(filenames):
+        if not filename.endswith(".c") and not filename.endswith(".h"):
+            continue
+        with open(os.path.join(dirpath, filename), "r") as f:
+            process_source_file(f)
+
+print('''        {}
+};
+
+static int sort_callback(const void *a, const void *b) {
+        const struct symbol *x = a, *y = b;
+        return strcmp(x->name, y->name);
+}
+
+int main(void) {
+        size_t i, j;
+
+        qsort(symbols_from_sym, sizeof(symbols_from_sym)/sizeof(symbols_from_sym[0])-1, sizeof(symbols_from_sym[0]), sort_callback);
+        qsort(symbols_from_source, sizeof(symbols_from_source)/sizeof(symbols_from_source[0])-1, sizeof(symbols_from_source[0]), sort_callback);
+
+        puts("From symbol file:");
+        for (i = 0; symbols_from_sym[i].name; i++)
+                printf("%p: %s\\n", symbols_from_sym[i].symbol, symbols_from_sym[i].name);
+
+        puts("\\nFrom source files:");
+        for (j = 0; symbols_from_source[j].name; j++)
+                printf("%p: %s\\n", symbols_from_source[j].symbol, symbols_from_source[j].name);
+
+        puts("");
+        printf("Found %zu symbols from symbol file.\\n", i);
+        printf("Found %zu symbols from source files.\\n", j);
+
+        for (i = 0; symbols_from_sym[i].name; i++) {
+                struct symbol*n = bsearch(symbols_from_sym+i, symbols_from_source, sizeof(symbols_from_source)/sizeof(symbols_from_source[0])-1, sizeof(symbols_from_source[0]), sort_callback);
+                if (!n)
+                        printf("Found in symbol file, but not in sources: %s\\n", symbols_from_sym[i].name);
+        }
+
+        for (j = 0; symbols_from_source[j].name; j++) {
+                struct symbol*n = bsearch(symbols_from_source+j, symbols_from_source, sizeof(symbols_from_sym)/sizeof(symbols_from_sym[0])-1, sizeof(symbols_from_sym[0]), sort_callback);
+                if (!n)
+                        printf("Found in sources, but not in symbol file: %s\\n", symbols_from_source[i].name);
+        }
+
+        return i == j ? EXIT_SUCCESS : EXIT_FAILURE;
+}''')