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* unwind-sjlj.c (_Unwind_GetCFA): Handle the builtin_setjmp case. 

From-SVN: r107102
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Daniel Jacobowitz 2005-11-16 22:09:52 +00:00 committed by Daniel Jacobowitz
parent 6276e725b2
commit 0e32bbcc67
2 changed files with 16 additions and 0 deletions
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4
gcc/ChangeLog
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@ -1,3 +1,7 @@
2005-11-16 Daniel Jacobowitz <dan@codesourcery.com>
* unwind-sjlj.c (_Unwind_GetCFA): Handle the builtin_setjmp case.
2005-11-16 Eric Botcazou <ebotcazou@adacore.com>
* config/alpha/alpha.c (alpha_init_builtins): Use type_for_mode

12
gcc/unwind-sjlj.c
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@ -185,6 +185,18 @@ _Unwind_Word
_Unwind_GetCFA (struct _Unwind_Context *context __attribute__((unused)))
{
/* ??? Ideally __builtin_setjmp places the CFA in the jmpbuf. */
#ifndef DONT_USE_BUILTIN_SETJMP
/* This is a crude imitation of the CFA: the saved stack pointer.
This is roughly the CFA of the frame before CONTEXT. When using the
DWARF-2 unwinder _Unwind_GetCFA returns the CFA of the frame described
by CONTEXT instead; but for DWARF-2 the cleanups associated with
CONTEXT have already been run, and for SJLJ they have not yet been. */
if (context->fc != NULL)
return (_Unwind_Word) context->fc->jbuf[2];
#endif
/* Otherwise we're out of luck for now. */
return (_Unwind_Word) 0;
}