[clang] [scan-build-py] use explicit compiler wrapper paths for intercept (PR #123252)

[via cfe-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-clang

Author: Aymeric Wibo (obiwac)

<details>
<summary>Changes</summary>

Previously, when using compiler wrappers (`--override-compiler`, as is default on macOS with SIP on), CC/CXX were set to just `intercept-cc/c++`, which are installed to libexec (so a priori not in PATH).

This PR mirrors what's done in `analyze-build`, and sets those to explicit paths to `intercept-cc/c++`.

---
Full diff: https://github.com/llvm/llvm-project/pull/123252.diff


1 Files Affected:

- (modified) clang/tools/scan-build-py/lib/libscanbuild/intercept.py (+5-2) 


``````````diff
diff --git a/clang/tools/scan-build-py/lib/libscanbuild/intercept.py b/clang/tools/scan-build-py/lib/libscanbuild/intercept.py
index 59789f6001f4f7..95efb75a57fe01 100644
--- a/clang/tools/scan-build-py/lib/libscanbuild/intercept.py
+++ b/clang/tools/scan-build-py/lib/libscanbuild/intercept.py
@@ -46,8 +46,11 @@
 RS = chr(0x1E)
 US = chr(0x1F)
 
-COMPILER_WRAPPER_CC = "intercept-cc"
-COMPILER_WRAPPER_CXX = "intercept-c++"
+scanbuild_dir = os.path.dirname(os.path.realpath(__import__("sys").argv[0]))
+
+COMPILER_WRAPPER_CC = os.path.join(scanbuild_dir, "..", "libexec", "intercept-cc")
+COMPILER_WRAPPER_CXX = os.path.join(scanbuild_dir, "..", "libexec", "intercept-c++")
+
 TRACE_FILE_EXTENSION = ".cmd"  # same as in ear.c
 WRAPPER_ONLY_PLATFORMS = frozenset({"win32", "cygwin"})
 

``````````

</details>


https://github.com/llvm/llvm-project/pull/123252