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669caa9c19
and CORE_ADDR, respectively. * frame.h (FRAME, FRAME_INFO_ID, FRAME_ADDR): Remove. * blockframe.c (get_frame_info): Remove. * a29k-tdep.c, alpha-tdep.c, blockframe.c, breakpoint.c, breakpoint.h, energize.c, findvar.c, gdbtk.c, gould-pinsn.c, h8300-tdep.c, h8500-tdep.c, hppa-tdep.c, i386-tdep.c, i960-tdep.c, infcmd.c, inferior.h, infrun.c, m68k-tdep.c, m88k-tdep.c, mips-tdep.c, nindy-tdep.c, printcmd.c, pyr-tdep.c, rs6000-tdep.c, sh-tdep.c, sparc-tdep.c, stack.c, valops.c, z8k-tdep.c, config/a29k/tm-a29k.h, config/alpha/tm-alpha.h, config/gould/tm-pn.h, config/h8300/tm-h8300.h, config/h8500/tm-h8500.h, config/mips/tm-mips.h, config/ns32k/tm-merlin.h, config/ns32k/tm-umax.h, config/pyr/tm-pyr.h, config/sparc/tm-sparc.h): Replace FRAME with struct frame_info * everywhere, replace FRAME_ADDR with CORE_ADDR, rename variables consistently (using `frame' or `fi'), remove calls to get_frame_info and FRAME_INFO_ID, remove comments about FRAME and FRAME_ADDR cruftiness.
74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/* Target-machine dependent code for the NINDY monitor running on the Intel 960
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Copyright (C) 1991 Free Software Foundation, Inc.
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Contributed by Intel Corporation.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* Miscellaneous NINDY-dependent routines.
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Some replace macros normally defined in "tm.h". */
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#include "defs.h"
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#include "symtab.h"
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#include "frame.h"
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/* 'start_frame' is a variable in the NINDY runtime startup routine
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that contains the frame pointer of the 'start' routine (the routine
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that calls 'main'). By reading its contents out of remote memory,
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we can tell where the frame chain ends: backtraces should halt before
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they display this frame. */
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int
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nindy_frame_chain_valid (chain, curframe)
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unsigned int chain;
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struct frame_info *curframe;
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{
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struct symbol *sym;
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struct minimal_symbol *msymbol;
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/* crtnindy.o is an assembler module that is assumed to be linked
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* first in an i80960 executable. It contains the true entry point;
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* it performs startup up initialization and then calls 'main'.
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*
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* 'sf' is the name of a variable in crtnindy.o that is set
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* during startup to the address of the first frame.
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*
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* 'a' is the address of that variable in 80960 memory.
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*/
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static char sf[] = "start_frame";
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CORE_ADDR a;
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chain &= ~0x3f; /* Zero low 6 bits because previous frame pointers
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contain return status info in them. */
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if ( chain == 0 ){
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return 0;
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}
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sym = lookup_symbol(sf, 0, VAR_NAMESPACE, (int *)NULL,
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(struct symtab **)NULL);
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if ( sym != 0 ){
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a = SYMBOL_VALUE (sym);
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} else {
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msymbol = lookup_minimal_symbol (sf, (struct objfile *) NULL);
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if (msymbol == NULL)
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return 0;
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a = SYMBOL_VALUE_ADDRESS (msymbol);
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}
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return ( chain != read_memory_integer(a,4) );
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}
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