mirror of
https://github.com/c64scene-ar/llvm-6502.git
synced 2024-12-22 07:32:48 +00:00
ed499d2e0a
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@8234 91177308-0d34-0410-b5e6-96231b3b80d8
62 lines
2.0 KiB
C++
62 lines
2.0 KiB
C++
//===- Exception.h - Generic language-independent exceptions ----*- C++ -*-===//
|
|
//
|
|
// This file defines the the shared data structures used by all language
|
|
// specific exception handling runtime libraries.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef EXCEPTION_H
|
|
#define EXCEPTION_H
|
|
|
|
struct llvm_exception {
|
|
// ExceptionDestructor - This call-back function is used to destroy the
|
|
// current exception, without requiring the caller to know what the concrete
|
|
// exception type is.
|
|
//
|
|
void (*ExceptionDestructor)(llvm_exception *);
|
|
|
|
// ExceptionType - This field identifies what runtime library this exception
|
|
// came from. Currently defined values are:
|
|
// 0 - Error
|
|
// 1 - longjmp exception (see longjmp-exception.c)
|
|
// 2 - C++ exception (see c++-exception.c)
|
|
//
|
|
unsigned ExceptionType;
|
|
|
|
// Next - This points to the next exception in the current stack.
|
|
llvm_exception *Next;
|
|
|
|
// HandlerCount - This is a count of the number of handlers which have
|
|
// currently caught this exception. If the handler is caught and this number
|
|
// falls to zero, the exception is destroyed.
|
|
//
|
|
unsigned HandlerCount;
|
|
|
|
// isRethrown - This field is set on an exception if it has been 'throw;'n.
|
|
// This is needed because the exception might exit through a number of the
|
|
// end_catch statements matching the number of begin_catch statements that
|
|
// have been processed. When this happens, the exception should become
|
|
// uncaught, not dead.
|
|
//
|
|
int isRethrown;
|
|
};
|
|
|
|
enum {
|
|
ErrorException = 0,
|
|
SJLJException = 1,
|
|
CXXException = 2,
|
|
};
|
|
|
|
// Language independent exception handling API...
|
|
//
|
|
extern "C" {
|
|
bool __llvm_eh_has_uncaught_exception() throw();
|
|
void *__llvm_eh_current_uncaught_exception_type(unsigned HandlerType) throw();
|
|
void __llvm_eh_add_uncaught_exception(llvm_exception *E) throw();
|
|
|
|
llvm_exception *__llvm_eh_get_uncaught_exception() throw();
|
|
llvm_exception *__llvm_eh_pop_from_uncaught_stack() throw();
|
|
}
|
|
|
|
#endif
|