__builtin_setjmp/__builtin_longjmp Implementation Implementation

[王 刚伟 <gwwang10@xxxxxxxxxxx>]

Hi all:
In gcc4.1.1/gcc/unwind-sjlj.c.
#define setjmp __builtin_setjmp
#define longjmp __builtin_longjmp

the implementation of them are "expand_builtin_setjmp" and 
"expand_builtin_longjmp"  in gcc4.1.1/gcc/builtins.c?

My program about exception handle crashs ,when "longjmp" is called to 
restore context,and registers are not restored correctly.

thank you:)

--David

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