SjLj based exception handling unwinding support. This patch is nasty, brutish
and short. Well, it's kinda short. Definitely nasty and brutish.
The front-end generates the register/unregister calls into the SjLj runtime,
call-site indices and landing pad dispatch. The back end fills in the LSDA
with the call-site information provided by the front end. Catch blocks are
not yet implemented.
Built on Darwin and verified no llvm-core "make check" regressions.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78625 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/TargetMachine.cpp b/lib/Target/TargetMachine.cpp
index fb95c52..b94fa68 100644
--- a/lib/Target/TargetMachine.cpp
+++ b/lib/Target/TargetMachine.cpp
@@ -33,7 +33,8 @@
FloatABI::ABIType FloatABIType;
bool NoImplicitFloat;
bool NoZerosInBSS;
- bool ExceptionHandling;
+ bool DwarfExceptionHandling;
+ bool SjLjExceptionHandling;
bool UnwindTablesMandatory;
Reloc::Model RelocationModel;
CodeModel::Model CMModel;
@@ -104,9 +105,14 @@
cl::location(NoZerosInBSS),
cl::init(false));
static cl::opt<bool, true>
-EnableExceptionHandling("enable-eh",
+EnableDwarfExceptionHandling("enable-eh",
cl::desc("Emit DWARF exception handling (default if target supports)"),
- cl::location(ExceptionHandling),
+ cl::location(DwarfExceptionHandling),
+ cl::init(false));
+static cl::opt<bool, true>
+EnableSjLjExceptionHandling("enable-sjlj-eh",
+ cl::desc("Emit SJLJ exception handling (default if target supports)"),
+ cl::location(SjLjExceptionHandling),
cl::init(false));
static cl::opt<bool, true>
EnableUnwindTables("unwind-tables",