78 lines
2.0 KiB
C
78 lines
2.0 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2011 Fidelity Information Services, Inc *
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* *
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* This source code contains the intellectual property *
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* of its copyright holder(s), and is made available *
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* under a license. If you do not know the terms of *
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* the license, please stop and do not read further. *
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* *
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****************************************************************/
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#include "mdef.h"
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#include "rtnhdr.h"
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#include "stack_frame.h"
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#include "mv_stent.h"
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#include "tp_frame.h"
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#include "get_ret_targ.h"
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GBLREF stack_frame *frame_pointer;
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GBLREF unsigned char *msp, *stackbase, *stacktop;
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GBLREF mv_stent *mv_chain;
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GBLREF int process_exiting;
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mval *get_ret_targ(stack_frame **retsf)
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{
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/* return the target of the return for this frame; return NULL if not called as extrinsic */
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mv_stent *mvc;
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stack_frame *sf;
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assert(msp <= stackbase && msp > stacktop);
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assert(mv_chain <= (mv_stent *)stackbase && mv_chain > (mv_stent *)stacktop);
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assert(frame_pointer <= (stack_frame *)stackbase && frame_pointer > (stack_frame *)stacktop);
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for (mvc = mv_chain, sf = frame_pointer; NULL != sf; sf = sf->old_frame_pointer)
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{
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for ( ; mvc < (mv_stent *)sf; mvc = (mv_stent *)(mvc->mv_st_next + (char *)mvc))
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{
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switch (mvc->mv_st_type)
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{
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case MVST_PARM:
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if (NULL != retsf)
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*retsf = sf;
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return mvc->mv_st_cont.mvs_parm.ret_value;
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case MVST_MSAV:
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case MVST_MVAL:
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case MVST_IARR:
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case MVST_STAB:
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case MVST_NTAB:
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case MVST_PVAL:
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case MVST_NVAL:
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case MVST_STCK:
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case MVST_STCK_SP:
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case MVST_TVAL:
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case MVST_TPHOLD:
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case MVST_ZINTR:
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case MVST_ZINTDEV:
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case MVST_TRIGR:
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case MVST_RSTRTPC:
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case MVST_STORIG:
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case MVST_MRGZWRSV:
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break;
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default:
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assert(FALSE);
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if (!process_exiting)
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GTMASSERT;
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break;
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}
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if (!mvc->mv_st_next)
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GTMASSERT; /* Avoid endless loop if next field got zapped */
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}
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if (SFT_COUNT & sf->type)
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break; /* Counted frame was checked, done */
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}
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return NULL;
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}
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