From: Lucas C.S. <lucascs@protonmail.com>
Subject: intel/perf, panfrost/perf: close the generated files explicitly

gen_perf.py and mali_gen_perf.py open their output files and never close
them, relying on the interpreter to flush the buffers at exit.  Python
never guaranteed that, and with Python 3.15 it stops happening for
gen_perf.py on the full Intel XML set: the script exits 0 while
intel_perf_metrics.c is cut mid-function and intel_perf_metrics.h is
left empty, so the build dies much later with "no previous prototype
for intel_oa_register_queries_*" and "expected expression at end of
input".  oa-acmgt3.xml alone is enough to trigger it.

Close the files explicitly.  With the patch, Python 3.15 produces
output byte-identical to Python 3.14's.

--- a/src/intel/perf/gen_perf.py
+++ b/src/intel/perf/gen_perf.py
@@ -1027,4 +1027,9 @@
 
 
 if __name__ == '__main__':
-    main()
+    try:
+        main()
+    finally:
+        for f in (c_file, header_file):
+            if f is not None:
+                f.close()
--- a/src/panfrost/perf/mali_gen_perf.py
+++ b/src/panfrost/perf/mali_gen_perf.py
@@ -35,6 +35,9 @@
    def outdent(self, n):
       self._indent -= n
 
+   def close(self):
+      self.file.close()
+
 
 @dataclass(frozen=True)
 class HardwareCounter:
@@ -467,6 +470,8 @@
    c.write("   .counters = counters,")
    c.write("};")
 
+   c.close()
+
 
 if __name__ == '__main__':
    main()