106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
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/****************************************************************
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* *
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* Copyright 2001, 2010 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 "gtm_stdio.h"
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#include "rtnhdr.h" /* needed for golevel.h */
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#include "error.h"
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#include "op.h"
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#include "stack_frame.h" /* needed for golevel.h */
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#include "tp_frame.h" /* needed for golevel.h */
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#include "golevel.h"
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#ifdef GTM_TRIGGER
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#include "gdsroot.h"
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#include "gdsblk.h"
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#include "gtm_facility.h"
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#include "fileinfo.h"
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#include "gdsbt.h"
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#include "gdsfhead.h"
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#include "filestruct.h"
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#include "gdscc.h"
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#include "gdskill.h"
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#include "jnl.h"
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#include "gv_trigger.h"
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#include "gtm_trigger.h"
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#include "get_ret_targ.h"
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GBLREF boolean_t goframes_unwound_trigger;
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#endif
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GBLREF boolean_t skip_error_ret;
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GBLREF tp_frame *tp_pointer;
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GBLREF stack_frame *frame_pointer;
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LITREF mval literal_null;
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#ifdef GTM_TRIGGER
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void goframes(int4 frames, boolean_t unwtrigrframe, boolean_t fromzgoto)
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#else
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void goframes(int4 frames)
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#endif
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{
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mval *ret_targ;
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GTMTRIG_ONLY(goframes_unwound_trigger = FALSE);
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for (ret_targ = NULL; frames--; )
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{
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while (tp_pointer && tp_pointer->fp <= frame_pointer)
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{
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OP_TROLLBACK(-1);
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}
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if (0 == frames)
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{
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ret_targ = (mval *)get_ret_targ(NULL);
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if (NULL != ret_targ)
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{
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*ret_targ = literal_null;
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ret_targ->mvtype |= MV_RETARG;
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}
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}
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skip_error_ret = TRUE;
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# ifdef GTM_TRIGGER
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if (!(SFT_TRIGR & frame_pointer->type))
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{ /* Normal frame unwind */
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DBGTRIGR((stderr, "goframes: unwinding regular frame at %016lx\n", frame_pointer));
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op_unwind();
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DBGTRIGR((stderr, "goframes: after regular frame unwind: frame_pointer 0x%016lx ctxt value: 0x%016lx\n",
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frame_pointer, ctxt));
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} else
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{ /* Trigger base frame unwind (special case) */
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DBGTRIGR((stderr, "goframes: unwinding trigger base frame at %016lx\n", frame_pointer));
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gtm_trigger_fini(TRUE, fromzgoto);
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goframes_unwound_trigger = TRUE;
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}
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# else
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/* If triggers are not enabled, just a normal unwind */
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DBGEHND((stderr, "goframes: unwinding regular frame at %016lx\n", frame_pointer));
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op_unwind();
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# endif
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assert(FALSE == skip_error_ret); /* op_unwind() should have read and reset this */
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skip_error_ret = FALSE; /* be safe in PRO versions */
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}
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# ifdef GTM_TRIGGER
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if (unwtrigrframe && (SFT_TRIGR & frame_pointer->type))
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{ /* If we landed on a trigger base frame after unwinding everything, we are in the same boat as if we had run into
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* one while we were unwinding. We cannot return this frame to (for example) zgoto which is going to morph it into
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* something else (unwtrigrframe only set when ZGOTO with entryref specified). So if the flag says we should never
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* land on a trigger frame, go ahead and unwind that one too.
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*/
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DBGTRIGR((stderr, "goframes: unwinding trailing trigger base frame at %016lx\n", frame_pointer));
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gtm_trigger_fini(TRUE, fromzgoto);
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goframes_unwound_trigger = TRUE;
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}
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# endif
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return;
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}
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