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SjLj based exception handling unwinding support. This patch is nasty, brutish

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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
This commit is contained in:
Jim Grosbach
2009-08-11 00:09:57 +00:00
parent 3a1f0f6785
commit 1b747ad8a0
25 changed files with 332 additions and 79 deletions
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12
include/llvm/Target/TargetOptions.h
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@@ -94,10 +94,14 @@ namespace llvm {
/// .bss section. This flag disables such behaviour (necessary, e.g. for
/// crt*.o compiling).
extern bool NoZerosInBSS;
/// ExceptionHandling - This flag indicates that exception information should
/// be emitted.
extern bool ExceptionHandling;
/// DwarfExceptionHandling - This flag indicates that Dwarf exception
/// information should be emitted.
extern bool DwarfExceptionHandling;
/// SjLjExceptionHandling - This flag indicates that SJLJ exception
/// information should be emitted.
extern bool SjLjExceptionHandling;
/// UnwindTablesMandatory - This flag indicates that unwind tables should
/// be emitted for all functions.