Fix warnings for gcc 12.3 (#3286)

* Silence a few gcc out of bounds warnings

* Search upwards from executable for prelude directory instead of assuming depth

* comment wording

* Check return values of read and write

* Correct path to vulkan headers in gfx

* Correct diagnostic on missing file in slang-embed

* Do not use absolute path to libraries in test-context.cpp

---------

Co-authored-by: Yong He <yonghe@outlook.com>

1 files changed, 2 insertions, 3 deletions

diff --git a/tools/slang-test/test-context.cpp b/tools/slang-test/test-context.cpp
index 39f5c92ed..b1be005cb 100644
--- a/tools/slang-test/test-context.cpp
+++ b/tools/slang-test/test-context.cpp
@@ -122,9 +122,8 @@ TestContext::InnerMainFunc TestContext::getInnerMainFunc(const String& dirPath,
     sharedLibToolBuilder.append(name);
     sharedLibToolBuilder.append("-tool");
 
-    StringBuilder builder;
-    SharedLibrary::appendPlatformFileName(sharedLibToolBuilder.getUnownedSlice(), builder);
-    String path = Path::combine(dirPath, builder);
+    StringBuilder path;
+    SharedLibrary::appendPlatformFileName(sharedLibToolBuilder.getUnownedSlice(), path);
 
     DefaultSharedLibraryLoader* loader = DefaultSharedLibraryLoader::getSingleton();