Preprocessor: Add support for '#pragma clang __debug crash' and '#pragma clang
__debug overflow_stack'.
- For testing crash reporting stuff... you'd think I could just use some C++
code but Doug keeps fixing stuff!
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109587 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Lex/Pragma.cpp b/lib/Lex/Pragma.cpp
index 7bf4094..31d28f1 100644
--- a/lib/Lex/Pragma.cpp
+++ b/lib/Lex/Pragma.cpp
@@ -582,6 +582,33 @@
}
};
+struct PragmaDebugHandler : public PragmaHandler {
+ PragmaDebugHandler() : PragmaHandler("__debug") {}
+ virtual void HandlePragma(Preprocessor &PP, Token &DepToken) {
+ Token Tok;
+ PP.LexUnexpandedToken(Tok);
+ if (Tok.isNot(tok::identifier)) {
+ PP.Diag(Tok, diag::warn_pragma_diagnostic_clang_invalid);
+ return;
+ }
+ IdentifierInfo *II = Tok.getIdentifierInfo();
+
+ if (II->isStr("overflow_stack")) {
+ DebugOverflowStack();
+ } else if (II->isStr("crash")) {
+ DebugCrash();
+ }
+ }
+
+ void DebugOverflowStack() {
+ DebugOverflowStack();
+ }
+
+ void DebugCrash() {
+ abort();
+ }
+};
+
/// PragmaDiagnosticHandler - e.g. '#pragma GCC diagnostic ignored "-Wformat"'
/// Since clang's diagnostic supports extended functionality beyond GCC's
/// the constructor takes a clangMode flag to tell it whether or not to allow
@@ -789,6 +816,7 @@
// #pragma clang ...
AddPragmaHandler("clang", new PragmaPoisonHandler());
AddPragmaHandler("clang", new PragmaSystemHeaderHandler());
+ AddPragmaHandler("clang", new PragmaDebugHandler());
AddPragmaHandler("clang", new PragmaDependencyHandler());
AddPragmaHandler("clang", new PragmaDiagnosticHandler(true));