* mon960-rom.c: New file; support mon960 rom monitor on i960.
* monitor.c (monitor_debug): Change remotedebug to buffer strings.
* monitor.c (monitor_open): Add test for flag MO_NO_ECHO_ON_OPEN before
epecting prompt and echo during open.
* monitor.c (monitor_stop): Add test for flag MO_SEND_BREAK_ON_OPEN to
determine if break should be sent as stop command.
* monitor.h: Add flags MO_NO_ECHO_ON_OPEN and MO_SEND_BREAK_ON_OPEN.
* i960-tdep.c (mon960_frame_chain_valid): New function for getting
stack frame on mon960.
* Makefile.in: Add mon960 files.
* configure.in: Changed i960-*-coff* and i960-*-elf* to target mon960;
added i960-nindy-coff* and i960-nindy-elf* for target nindy.
* configure: Regenerated.
* config/i960/mon960.mt, config/i960/tm-mon960.h: New files;
support mon960 rom monitor on i960.
This commit is contained in:
Dawn Perchik
parent
5d06fa80b2
commit
2e665cd3ad
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@ -0,0 +1,4 @@
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# Target: Intel 960 rom monitor
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TDEPFILES= i960-tdep.o monitor.o mon960-rom.o ttyflush.o xmodem.o dsrec.o
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TM_FILE= tm-mon960.h
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@ -0,0 +1,92 @@
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/* Parameters for Intel 960 running MON960 monitor, for GDB, the GNU debugger.
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Copyright (C) 1990-1991 Free Software Foundation, Inc.
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Contributed by Intel Corporation and Cygnus Support.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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/*****************************************************************************
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* Definitions to target GDB to an i960 debugged over a serial line.
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******************************************************************************/
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#include "i960/tm-i960.h"
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/* redefined from tm-i960.h */
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/* Number of machine registers */
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#undef NUM_REGS
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#define NUM_REGS 40
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/* Initializer for an array of names of registers.
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There should be NUM_REGS strings in this initializer. */
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#undef REGISTER_NAMES
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#define REGISTER_NAMES { \
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/* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7", \
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/* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",\
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/* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
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/* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp", \
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/* 32 */ "pc", "ac", "tc", "ip", "fp0", "fp1", "fp2", "fp3",\
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}
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/* Override the standard gdb prompt when compiled for this target. */
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#define DEFAULT_PROMPT "(gdb960) "
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/* Additional command line options accepted by mon960 gdb's, for handling
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the remote-mon960.c interface. These should really be target-specific
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rather than architecture-specific. */
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/* FIXME - should use this instead of the "send_break" hack in monitor.c */
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extern int mon960_initial_brk; /* Send a BREAK to reset board first */
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extern char *mon960_ttyname; /* Name of serial port to talk to mon960 */
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#define ADDITIONAL_OPTIONS \
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/* FIXME {"brk", no_argument, &mon960_initial_brk, 1}, */ \
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{"ser", required_argument, 0, 1004}, /* 1004 is magic cookie for ADDL_CASES */
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#define ADDITIONAL_OPTION_CASES \
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case 1004: /* -ser option: remote mon960 auto-start */ \
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mon960_ttyname = optarg; \
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break;
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#define ADDITIONAL_OPTION_HELP \
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"\
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/* FIXME - -brk Send a break to a Mon960 target to reset it.\n*/\
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-ser SERIAL Open remote Mon960 session to SERIAL port.\n\
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"
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/* FRAME_CHAIN_VALID returns zero if the given frame is the outermost one
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and has no caller.
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On the i960, each various target system type defines FRAME_CHAIN_VALID,
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since it differs between Nindy, Mon960 and VxWorks, the currently supported
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targets types. */
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#define FRAME_CHAIN_VALID(chain, thisframe) \
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mon960_frame_chain_valid (chain, thisframe)
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extern int
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mon960_frame_chain_valid(); /* See i960-tdep.c */
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/* Sequence of bytes for breakpoint instruction */
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#define BREAKPOINT {0x00, 0x3e, 0x00, 0x66}
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/* Amount ip must be decremented by after a breakpoint.
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* This is often the number of bytes in BREAKPOINT but not always.
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*/
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#define DECR_PC_AFTER_BREAK 4
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@ -3078,8 +3078,10 @@ i[3456]86-*-netware*) gdb_target=i386nw
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i[3456]86-*-osf1mk*) gdb_target=i386mk ;;
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i[3456]86-*-cygwin32) gdb_target=cygwin32 ;;
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i960-*-bout*) gdb_target=vxworks960 ;;
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i960-*-coff*) gdb_target=nindy960 ;;
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i960-*-elf*) gdb_target=nindy960 ;;
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i960-nindy-coff*) gdb_target=nindy960 ;;
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i960-*-coff*) gdb_target=mon960 ;;
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i960-nindy-elf*) gdb_target=nindy960 ;;
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i960-*-elf*) gdb_target=mon960 ;;
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i960-*-nindy*) gdb_target=nindy960 ;;
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i960-*-vxworks*) gdb_target=vxworks960 ;;
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@ -472,8 +472,10 @@ i[3456]86-*-netware*) gdb_target=i386nw
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i[3456]86-*-osf1mk*) gdb_target=i386mk ;;
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i[3456]86-*-cygwin32) gdb_target=cygwin32 ;;
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i960-*-bout*) gdb_target=vxworks960 ;;
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i960-*-coff*) gdb_target=nindy960 ;;
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i960-*-elf*) gdb_target=nindy960 ;;
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i960-nindy-coff*) gdb_target=nindy960 ;;
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i960-*-coff*) gdb_target=mon960 ;;
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i960-nindy-elf*) gdb_target=nindy960 ;;
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i960-*-elf*) gdb_target=mon960 ;;
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i960-*-nindy*) gdb_target=nindy960 ;;
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i960-*-vxworks*) gdb_target=vxworks960 ;;
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@ -760,6 +760,53 @@ next_insn (memaddr, pword1, pword2)
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return 0;
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}
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/* 'start_frame' is a variable in the MON960 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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mon960_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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/* crtmon960.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 crtmon960.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, NULL, 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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void
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_initialize_i960_tdep ()
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{
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@ -0,0 +1,270 @@
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/* Remote target glue for the Intel 960 ROM monitor.
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Copyright 1995, 1996 Free Software Foundation, Inc.
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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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|
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "gdbcore.h"
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#include "target.h"
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#include "monitor.h"
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#include "serial.h"
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#include "srec.h"
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#include "xmodem.h"
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#if !defined (HAVE_TERMIOS) && !defined (HAVE_TERMIO) && !defined (HAVE_SGTTY)
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#define HAVE_SGTTY
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#endif
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#ifdef HAVE_SGTTY
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#include <sys/ioctl.h>
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#endif
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#include <sys/types.h> /* Needed by file.h on Sys V */
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#include <sys/file.h>
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#include <signal.h>
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#include <sys/stat.h>
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#define USE_GENERIC_LOAD
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int quiet = 0; /* 1 => stifle unnecessary messages */
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serial_t mon960_serial;
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char *mon960_ttyname; /* name of tty to talk to mon960 on, or null */
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static struct monitor_ops mon960_cmds;
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#ifdef USE_GENERIC_LOAD
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extern void generic_load PARAMS ((char* filename, int from_tty));
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#endif
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static void mon960_open PARAMS ((char *args, int from_tty));
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#ifdef USE_GENERIC_LOAD
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static void
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mon960_load_gen (filename, from_tty)
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char *filename;
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int from_tty;
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{
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extern int inferior_pid;
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generic_load (filename, from_tty);
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/* Finally, make the PC point at the start address */
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if (exec_bfd)
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write_pc (bfd_get_start_address (exec_bfd));
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inferior_pid = 0; /* No process now */
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}
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#else
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static void
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mon960_load (desc, file, hashmark)
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serial_t desc;
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char *file;
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int hashmark;
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{
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bfd *abfd;
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asection *s;
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char *buffer;
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int i;
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buffer = alloca (XMODEM_PACKETSIZE);
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abfd = bfd_openr (file, 0);
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if (!abfd)
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{
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printf_filtered ("Unable to open file %s\n", file);
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return;
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}
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if (bfd_check_format (abfd, bfd_object) == 0)
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{
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printf_filtered ("File is not an object file\n");
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return;
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}
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for (s = abfd->sections; s; s = s->next)
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if (s->flags & SEC_LOAD)
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{
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bfd_size_type section_size;
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printf_filtered ("%s\t: 0x%4x .. 0x%4x ", s->name, s->vma,
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s->vma + s->_raw_size);
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gdb_flush (gdb_stdout);
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monitor_printf (mon960_cmds.load, s->vma);
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if (mon960_cmds.loadresp)
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monitor_expect (mon960_cmds.loadresp, NULL, 0);
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xmodem_init_xfer (desc);
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section_size = bfd_section_size (abfd, s);
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for (i = 0; i < section_size; i += XMODEM_DATASIZE)
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{
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int numbytes;
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numbytes = min (XMODEM_DATASIZE, section_size - i);
|
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bfd_get_section_contents (abfd, s, buffer + XMODEM_DATAOFFSET, i,
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||||
numbytes);
|
||||
xmodem_send_packet (desc, buffer, numbytes, hashmark);
|
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if (hashmark)
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||||
{
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||||
putchar_unfiltered ('#');
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||||
gdb_flush (gdb_stdout);
|
||||
}
|
||||
} /* Per-packet (or S-record) loop */
|
||||
xmodem_finish_xfer (desc);
|
||||
monitor_expect_prompt (NULL, 0);
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||||
putchar_unfiltered ('\n');
|
||||
} /* Loadable sections */
|
||||
if (hashmark)
|
||||
putchar_unfiltered ('\n');
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||||
}
|
||||
#endif
|
||||
|
||||
/* This array of registers need to match the indexes used by GDB.
|
||||
This exists because the various ROM monitors use different strings
|
||||
than does GDB, and don't necessarily support all the registers
|
||||
either. So, typing "info reg sp" becomes a "r30". */
|
||||
|
||||
/* these correspond to the offsets from tm-* files from config directories */
|
||||
/* g0-g14, fp, pfp, sp, rip,r3-15, pc, ac, tc, fp0-3 */
|
||||
/* NOTE: "ip" is documented as "ir" in the Mon960 UG. */
|
||||
/* NOTE: "ir" can't be accessed... but there's an ip and rip. */
|
||||
static char *mon960_regnames[NUM_REGS] = {
|
||||
/* 0 */ "pfp", "sp", "rip", "r3", "r4", "r5", "r6", "r7", \
|
||||
/* 8 */ "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15",\
|
||||
/* 16 */ "g0", "g1", "g2", "g3", "g4", "g5", "g6", "g7", \
|
||||
/* 24 */ "g8", "g9", "g10", "g11", "g12", "g13", "g14", "fp", \
|
||||
/* 32 */ "pc", "ac", "tc", "ip", "fp0", "fp1", "fp2", "fp3",\
|
||||
};
|
||||
|
||||
/* Define the monitor command strings. Since these are passed directly
|
||||
through to a printf style function, we may include formatting
|
||||
strings. We also need a CR or LF on the end. */
|
||||
|
||||
static struct target_ops mon960_ops;
|
||||
|
||||
/* need to pause the monitor for timing reasons, so slow it down */
|
||||
static char *mon960_inits[] = {"\n\r\r\r\r\r\r\r\r\r\r\r\r\r\r\n\r\n\r\n", NULL}; /* Exits sub-command mode & download cmds */
|
||||
|
||||
static struct monitor_ops mon960_cmds =
|
||||
{
|
||||
MO_CLR_BREAK_USES_ADDR
|
||||
| MO_NO_ECHO_ON_OPEN
|
||||
| MO_SEND_BREAK_ON_STOP
|
||||
| MO_GETMEM_READ_SINGLE, /* flags */
|
||||
mon960_inits, /* Init strings */
|
||||
"go\n\r", /* continue command */
|
||||
"st\n\r", /* single step */
|
||||
"\n\r", /* break interrupts the program */
|
||||
NULL, /* set a breakpoint */
|
||||
/* can't use "br" because only 2 hw bps are supported */
|
||||
NULL, /* clear a breakpoint - "de" is for hw bps */
|
||||
NULL, /* clear all breakpoints */
|
||||
NULL, /* fill (start end val) */
|
||||
/* can't use "fi" because it takes words, not bytes */
|
||||
{
|
||||
/* can't use "mb", "md" or "mo" because they require interaction */
|
||||
NULL, /* setmem.cmdb (addr, value) */
|
||||
"md %x %x\n\r", /* setmem.cmdw (addr, value) */
|
||||
NULL, /* setmem.cmdl (addr, value) */
|
||||
NULL, /* setmem.cmdll (addr, value) */
|
||||
NULL, /* setmem.resp_delim */
|
||||
NULL, /* setmem.term */
|
||||
NULL, /* setmem.term_cmd */
|
||||
},
|
||||
{
|
||||
/* since the parsing of multiple bytes is difficult due to
|
||||
interspersed addresses, we'll only read 1 value at a time,
|
||||
even tho these can handle a count */
|
||||
"db %x\n\r", /* getmem.cmdb (addr, #bytes) */
|
||||
"ds %x\n\r", /* getmem.cmdw (addr, #swords) */
|
||||
"di %x\n\r", /* getmem.cmdl (addr, #words) */
|
||||
"dd %x\n\r", /* getmem.cmdll (addr, #dwords) */
|
||||
" : ", /* getmem.resp_delim */
|
||||
NULL, /* getmem.term */
|
||||
NULL, /* getmem.term_cmd */
|
||||
},
|
||||
{
|
||||
"md %s %x\n\r", /* setreg.cmd (name, value) */
|
||||
NULL, /* setreg.resp_delim */
|
||||
NULL, /* setreg.term */
|
||||
NULL /* setreg.term_cmd */
|
||||
},
|
||||
{
|
||||
"di %s\n\r", /* getreg.cmd (name) */
|
||||
" : ", /* getreg.resp_delim */
|
||||
NULL, /* getreg.term */
|
||||
NULL, /* getreg.term_cmd */
|
||||
},
|
||||
"re\n\r", /* dump_registers */
|
||||
"\\(\\w+\\)=\\([0-9a-fA-F]+\\)", /* register_pattern */
|
||||
NULL, /* supply_register */
|
||||
#ifdef USE_GENERIC_LOAD
|
||||
NULL, /* load_routine (defaults to SRECs) */
|
||||
NULL, /* download command */
|
||||
NULL, /* load response */
|
||||
#else
|
||||
mon960_load, /* load_routine (defaults to SRECs) */
|
||||
"do\n\r", /* download command */
|
||||
"Downloading\n\r", /* load response */
|
||||
#endif
|
||||
"=>", /* monitor command prompt */
|
||||
"\n\r", /* end-of-command delimitor */
|
||||
NULL, /* optional command terminator */
|
||||
&mon960_ops, /* target operations */
|
||||
SERIAL_1_STOPBITS, /* number of stop bits */
|
||||
mon960_regnames, /* registers names */
|
||||
MONITOR_OPS_MAGIC /* magic */
|
||||
};
|
||||
|
||||
/* invoked from monitor.c - opens the serial port */
|
||||
static void
|
||||
mon960_open (args, from_tty)
|
||||
char *args;
|
||||
int from_tty;
|
||||
{
|
||||
char *serial_port_name = args;
|
||||
if (args)
|
||||
{
|
||||
char *cursor = serial_port_name = strsave (args);
|
||||
|
||||
while (*cursor && *cursor != ' ')
|
||||
cursor++;
|
||||
|
||||
if (*cursor)
|
||||
*cursor++ = 0;
|
||||
|
||||
while (*cursor == ' ')
|
||||
cursor++;
|
||||
|
||||
}
|
||||
monitor_open (serial_port_name, &mon960_cmds, from_tty);
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
_initialize_mon960 ()
|
||||
{
|
||||
init_monitor_ops (&mon960_ops);
|
||||
|
||||
mon960_ops.to_shortname = "mon960"; /* for the target command */
|
||||
mon960_ops.to_longname = "Intel 960 rom monitor";
|
||||
#ifdef USE_GENERIC_LOAD
|
||||
mon960_ops.to_load = mon960_load_gen; /* FIXME - should go back and try "do" */
|
||||
#endif
|
||||
/* use SW breaks; target only supports 2 HW breakpoints */
|
||||
mon960_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
||||
mon960_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
||||
|
||||
mon960_ops.to_doc =
|
||||
"Debug on an Intel 960 eval board running the Mon960 rom monitor.\n"
|
||||
"Specify the serial device it is connected to (e.g. /dev/ttya).";
|
||||
|
||||
mon960_ops.to_open = mon960_open;
|
||||
add_target (&mon960_ops);
|
||||
}
|
||||
|
||||
|
|
@ -121,6 +121,10 @@ struct monitor_ops
|
|||
#define MO_GETMEM_READ_SINGLE 0x10 /* getmem can only read one loc at a time */
|
||||
#define MO_HANDLE_NL 0x20 /* handle \r\n combinations */
|
||||
|
||||
#define MO_NO_ECHO_ON_OPEN 0x40 /* don't expect echos in monitor_open */
|
||||
|
||||
#define MO_SEND_BREAK_ON_STOP 0x80 /* If set, send break to stop monitor */
|
||||
|
||||
extern struct monitor_ops *current_monitor;
|
||||
|
||||
#define LOADTYPES (current_monitor->loadtypes)
|
||||
|
|
|
|||
Loading…
Reference in New Issue