Merge pull request #2539 from terrelln/linux-kernel-fixes

Fixes for the next linux kernel patch version

contrib/freestanding_lib/freestanding.py

@@ -27,6 +27,8 @@
     "common/pool.h",
     "common/threading.c",
     "common/threading.h",
+    "common/zstd_trace.c",
+    "common/zstd_trace.h",
     "compress/zstdmt_compress.h",
     "compress/zstdmt_compress.c",
 ]
@@ -471,7 +473,7 @@ def _copy_file(self, lib_path):
         dst_path = os.path.join(self._dst_lib, lib_path)
         self._log(f"\tCopying: {src_path} -> {dst_path}")
         shutil.copyfile(src_path, dst_path)
-    
+
     def _copy_source_lib(self):
         self._log("Copying source library into output library")
 
@@ -481,14 +483,14 @@ def _copy_source_lib(self):
         for subdir in INCLUDED_SUBDIRS:
             src_dir = os.path.join(self._src_lib, subdir)
             dst_dir = os.path.join(self._dst_lib, subdir)
-            
+
             assert os.path.exists(src_dir)
             os.makedirs(dst_dir, exist_ok=True)
 
             for filename in os.listdir(src_dir):
                 lib_path = os.path.join(subdir, filename)
                 self._copy_file(lib_path)
-    
+
     def _copy_zstd_deps(self):
         dst_zstd_deps = os.path.join(self._dst_lib, "common", "zstd_deps.h")
         self._log(f"Copying zstd_deps: {self._zstd_deps} -> {dst_zstd_deps}")
@@ -508,7 +510,7 @@ def _hardwire_preprocessor(self, name: str, value: Optional[str] = None, undef=F
         assert not (undef and value is not None)
         for filepath in self._dst_lib_file_paths():
             file = FileLines(filepath)
-    
+
     def _hardwire_defines(self):
         self._log("Hardwiring macros")
         partial_preprocessor = PartialPreprocessor(self._defs, self._replaces, self._undefs)
@@ -536,7 +538,7 @@ def _remove_excludes(self):
                         skipped.append(line)
                         if end_re.search(line) is not None:
                             assert begin_re.search(line) is None
-                            self._log(f"\t\tRemoving excluded section: {exclude}") 
+                            self._log(f"\t\tRemoving excluded section: {exclude}")
                             for s in skipped:
                                 self._log(f"\t\t\t- {s}")
                             emit = True
@@ -559,12 +561,12 @@ def _rewrite_include(self, original, rewritten):
                 e = match.end('include')
                 file.lines[i] = line[:s] + rewritten + line[e:]
             file.write()
-    
+
     def _rewrite_includes(self):
         self._log("Rewriting includes")
         for original, rewritten in self._rewritten_includes:
             self._rewrite_include(original, rewritten)
-    
+
     def _replace_xxh64_prefix(self):
         if self._xxh64_prefix is None:
             return
@@ -656,6 +658,11 @@ def main(name, args):
         if name in args.undefs:
             raise RuntimeError(f"{name} is both defined and undefined!")
 
+    # Always set tracing to 0
+    if "ZSTD_NO_TRACE" not in (arg[0] for arg in args.defs):
+        args.defs.append(("ZSTD_NO_TRACE", None))
+        args.defs.append(("ZSTD_TRACE", "0"))
+
     args.replaces = parse_pair(args.replaces)
     for name, _ in args.replaces:
         if name in args.undefs or name in args.defs:

contrib/linux-kernel/Makefile

@@ -22,6 +22,8 @@ libzstd:
 		--xxh64-prefix 'xxh64' \
 		--rewrite-include '<limits\.h>=<linux/limits.h>' \
 		--rewrite-include '<stddef\.h>=<linux/types.h>' \
+		--rewrite-include '"\.\./zstd.h"=<linux/zstd.h>' \
+		--rewrite-include '"(\.\./common/)?zstd_errors.h"=<linux/zstd_errors.h>' \
 		-DZSTD_NO_INTRINSICS \
 		-DZSTD_NO_UNUSED_FUNCTIONS \
 		-DZSTD_LEGACY_SUPPORT=0 \
@@ -47,7 +49,10 @@ libzstd:
 		-RZSTDLIB_VISIBILITY= \
 		-RZSTDERRORLIB_VISIBILITY= \
 		-DZSTD_HAVE_WEAK_SYMBOLS=0 \
-		-DZSTD_TRACE=0
+		-DZSTD_TRACE=0 \
+		-DZSTD_NO_TRACE
+	mv linux/lib/zstd/zstd.h linux/include/linux/zstd_lib.h
+	mv linux/lib/zstd/common/zstd_errors.h linux/include/linux/
 	cp linux_zstd.h linux/include/linux/zstd.h
 	cp zstd_compress_module.c linux/lib/zstd
 	cp zstd_decompress_module.c linux/lib/zstd
@@ -62,15 +67,18 @@ import: libzstd
 	rm -f $(LINUX)/include/linux/zstd_errors.h
 	rm -rf $(LINUX)/lib/zstd
 	cp linux/include/linux/zstd.h $(LINUX)/include/linux
+	cp linux/include/linux/zstd_lib.h $(LINUX)/include/linux
+	cp linux/include/linux/zstd_errors.h $(LINUX)/include/linux
 	cp -r linux/lib/zstd $(LINUX)/lib
 
 import-upstream:
 	rm -rf $(LINUX)/lib/zstd
 	mkdir $(LINUX)/lib/zstd
-	cp ../../lib/zstd.h $(LINUX)/lib/zstd
+	cp ../../lib/zstd.h $(LINUX)/include/linux/zstd_lib.h
 	cp -r ../../lib/common $(LINUX)/lib/zstd
 	cp -r ../../lib/compress $(LINUX)/lib/zstd
 	cp -r ../../lib/decompress $(LINUX)/lib/zstd
+	mv $(LINUX)/lib/zstd/common/zstd_errors.h $(LINUX)/include/linux
 	rm $(LINUX)/lib/zstd/common/threading.*
 	rm $(LINUX)/lib/zstd/common/pool.*
 	rm $(LINUX)/lib/zstd/common/xxhash.*