default arch

Author: jakeegan

compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_libcdep.cpp

@@ -282,6 +282,9 @@ class LLVMSymbolizerProcess final : public SymbolizerProcess {
     const char *const kSymbolizerArch = "--default-arch=powerpc64";
 #  elif defined(__powerpc64__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
     const char *const kSymbolizerArch = "--default-arch=powerpc64le";
+#  elif defined(__powerpc__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
+    // Must check __powerpc__ after __powerpc64__ because both can be set.
+    const char* const kSymbolizerArch = "--default-arch=powerpc";
 #  elif defined(__s390x__)
     const char *const kSymbolizerArch = "--default-arch=s390x";
 #  elif defined(__s390__)

compiler-rt/test/sanitizer_common/TestCases/Inputs/sanitizer_default_arch/llvm-symbolizer

@@ -0,0 +1,7 @@
+#!/usr/bin/env python3
+
+ # Assisted by watsonx Code Assistant
+ import json
+ import sys
+ print(json.dumps(sys.argv[1:]), file=sys.stderr)
+ print("main\n??:0:0\n")

compiler-rt/test/sanitizer_common/TestCases/symbolizer_default_arch_ppc64.cpp

@@ -0,0 +1,18 @@
+// REQUIRES: powerpc64-target-arch
+
+ // RUN: %clangxx -O0 %s -o %t
+ // RUN: %env_tool_opts=external_symbolizer_path=%p/Inputs/sanitizer_default_arch/llvm-symbolizer \
+ // RUN:   %run %t 2>&1 | FileCheck %s
+
+ #include <sanitizer/common_interface_defs.h>
+
+ static void Symbolize() {
+   char buffer[100];
+   __sanitizer_symbolize_pc(__builtin_return_address(0), "%p %F %L", buffer,
+                            sizeof(buffer));
+ }
+
+ int main() {
+   // CHECK: "--default-arch=powerpc64"
+   Symbolize();
+ }