fis-gtm/sr_port/get_symb_line.c

61 lines
1.7 KiB
C

/****************************************************************
* *
* Copyright 2001, 2010 Fidelity Information Services, Inc *
* *
* This source code contains the intellectual property *
* of its copyright holder(s), and is made available *
* under a license. If you do not know the terms of *
* the license, please stop and do not read further. *
* *
****************************************************************/
#include "mdef.h"
#include "gtm_string.h"
#include "rtnhdr.h"
#include "stack_frame.h"
#include "error_trap.h" /* for error_ret()/error_ret_vms() declaration */
GBLREF stack_frame *frame_pointer;
GBLREF stack_frame *error_frame;
GBLREF dollar_ecode_type dollar_ecode; /* structure containing $ECODE related information */
unsigned char *get_symb_line(unsigned char *out, unsigned char **b_line, unsigned char **ctxt)
{
boolean_t line_reset;
stack_frame *fp;
unsigned char *addr, *out_addr;
unsigned char *fpmpc, *fpctxt;
line_reset = FALSE;
for (fp = frame_pointer; fp; fp = fp->old_frame_pointer)
{
# ifdef GTM_TRIGGER
if (NULL == fp->old_frame_pointer && (fp->type & SFT_TRIGR))
/* Have a trigger baseframe, pick up stack continuation frame_pointer stored by base_frame() */
fp = *(stack_frame **)(fp + 1);
# endif
fpmpc = fp->mpc;
fpctxt = fp->ctxt;
if (ADDR_IN_CODE(fpmpc, fp->rvector))
{
if (ctxt != 0)
*ctxt = fpctxt;
if (line_reset)
addr = fpmpc + 1;
else
addr = fpmpc;
out_addr = symb_line(addr, out, b_line, fp->rvector);
assert (out < out_addr);
return out_addr;
} else
{
if (fp->type & SFT_ZTRAP || fp->type & SFT_DEV_ACT)
line_reset = TRUE;
}
}
GTMASSERT;
return NULL;
}