2002-04-09 Daniel Jacobowitz <drow@mvista.com>
* gdbserver/inferiors.c: New file.
* gdbserver/target.c: New file.
* gdbserver/target.h: New file.
* gdbserver/Makefile.in: Add target.o and inferiors.o. Update
dependencies.
* gdbserver/linux-low.c (inferior_pid): New static variable,
moved from server.c.
(linux_create_inferior): Renamed from create_inferior.
Call add_inferior. Return 0 on success instead of a PID.
(linux_attach): Renamed from myattach.
(linux_kill): Renamed from kill_inferior. Call clear_inferiors ().
(linux_thread_alive): Renamed from mythread_alive.
(linux_wait): Renamed from mywait. Call clear_inferiors () if the
child dies.
(linux_resume): Renamed from myresume. Add missing ``return 0''.
(regsets_store_inferior_registers): Correct error message.
Add missing ``return 0''.
(linux_fetch_registers): Renamed from fetch_inferior_registers.
(linux_store_registers): Renamed from store_inferior_registers.
(linux_read_memory): Renamed from read_inferior_memory.
(linux_write_memory): Renamed from write_inferior_memory.
(linux_target_ops): New structure.
(initialize_low): Call set_target_ops ().
* gdbserver/remote-utils.c (unhexify): New function.
(hexify): New function.
(input_interrupt): Send signals to ``signal_pid''.
* gdbserver/server.c (inferior_pid): Remove.
(start_inferior): Update create_inferior call.
(attach_inferior): Call add_inferior.
(handle_query): New function.
(main): Call handle_query for `q' packets.
* gdbserver/server.h: Include "target.h". Remove obsolete prototypes.
Add prototypes for "inferiors.c", "target.c", hexify, and unhexify.
This commit is contained in:
Daniel Jacobowitz
parent
0729219dab
commit
ce3a066d93
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@ -1,3 +1,39 @@
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2002-04-09 Daniel Jacobowitz <drow@mvista.com>
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* gdbserver/inferiors.c: New file.
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* gdbserver/target.c: New file.
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* gdbserver/target.h: New file.
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* gdbserver/Makefile.in: Add target.o and inferiors.o. Update
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dependencies.
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* gdbserver/linux-low.c (inferior_pid): New static variable,
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moved from server.c.
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(linux_create_inferior): Renamed from create_inferior.
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Call add_inferior. Return 0 on success instead of a PID.
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(linux_attach): Renamed from myattach.
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(linux_kill): Renamed from kill_inferior. Call clear_inferiors ().
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(linux_thread_alive): Renamed from mythread_alive.
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(linux_wait): Renamed from mywait. Call clear_inferiors () if the
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child dies.
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(linux_resume): Renamed from myresume. Add missing ``return 0''.
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(regsets_store_inferior_registers): Correct error message.
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Add missing ``return 0''.
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(linux_fetch_registers): Renamed from fetch_inferior_registers.
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(linux_store_registers): Renamed from store_inferior_registers.
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(linux_read_memory): Renamed from read_inferior_memory.
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(linux_write_memory): Renamed from write_inferior_memory.
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(linux_target_ops): New structure.
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(initialize_low): Call set_target_ops ().
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* gdbserver/remote-utils.c (unhexify): New function.
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(hexify): New function.
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(input_interrupt): Send signals to ``signal_pid''.
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* gdbserver/server.c (inferior_pid): Remove.
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(start_inferior): Update create_inferior call.
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(attach_inferior): Call add_inferior.
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(handle_query): New function.
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(main): Call handle_query for `q' packets.
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* gdbserver/server.h: Include "target.h". Remove obsolete prototypes.
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Add prototypes for "inferiors.c", "target.c", hexify, and unhexify.
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2002-04-09 Daniel Jacobowitz <drow@mvista.com>
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* gdbserver/Makefile.in: Add WARN_CFLAGS. Update configury
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@ -122,7 +122,9 @@ DEPFILES = @GDBSERVER_DEPFILES@
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SOURCES = $(SFILES)
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TAGFILES = $(SOURCES) ${HFILES} ${ALLPARAM} ${POSSLIBS}
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OBS = utils.o $(DEPFILES) server.o remote-utils.o regcache.o signals.o
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OBS = inferiors.o regcache.o remote-utils.o server.o signals.o target.o \
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utils.o \
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$(DEPFILES)
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# Prevent Sun make from putting in the machine type. Setting
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# TARGET_ARCH to nothing works for SunOS 3, 4.0, but not for 4.1.
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@ -230,12 +232,14 @@ unexport CHILLFLAGS CHILL_LIB CHILL_FOR_TARGET :
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regdat_sh = $(srcdir)/../regformats/regdat.sh
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regdef_h = $(srcdir)/../regformats/regdef.h
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regcache_h = $(srcdir)/regcache.h
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server_h = $(srcdir)/server.h $(regcache_h) config.h
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server_h = $(srcdir)/server.h $(regcache_h) config.h $(srcdir)/target.h
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server.o: server.c $(server_h)
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remote-utils.o: remote-utils.c terminal.h $(server_h)
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utils.o: utils.c $(server_h)
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inferiors.o: inferiors.c $(server_h)
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regcache.o: regcache.c $(server_h) $(regdef_h)
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remote-utils.o: remote-utils.c terminal.h $(server_h)
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server.o: server.c $(server_h)
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target.o: target.c $(server_h)
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utils.o: utils.c $(server_h)
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signals.o: ../signals/signals.c $(server_h)
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$(CC) -c $(CPPFLAGS) $(INTERNAL_CFLAGS) $< -DGDBSERVER
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@ -0,0 +1,71 @@
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/* Inferior process information for the remote server for GDB.
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Copyright 2002
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Free Software Foundation, Inc.
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Contributed by MontaVista Software.
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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,
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Boston, MA 02111-1307, USA. */
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#include <stdlib.h>
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#include "server.h"
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struct inferior_info
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{
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int pid;
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struct inferior_info *next;
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};
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static struct inferior_info *inferiors;
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struct inferior_info *current_inferior;
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int signal_pid;
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void
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add_inferior (int pid)
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{
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struct inferior_info *new_inferior
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= (struct inferior_info *) malloc (sizeof (*new_inferior));
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memset (new_inferior, 0, sizeof (*new_inferior));
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new_inferior->pid = pid;
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new_inferior->next = inferiors;
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inferiors = new_inferior;
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if (current_inferior == NULL)
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current_inferior = inferiors;
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if (signal_pid == 0)
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signal_pid = pid;
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}
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void
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clear_inferiors (void)
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{
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struct inferior_info *inf = inferiors, *next_inf;
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while (inf)
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{
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next_inf = inf->next;
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free (inf);
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inf = next_inf;
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}
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inferiors = NULL;
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}
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@ -49,11 +49,13 @@ extern int num_regs;
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extern int regmap[];
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#endif
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static int inferior_pid;
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/* Start an inferior process and returns its pid.
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ALLARGS is a vector of program-name and args. */
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int
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create_inferior (char *program, char **allargs)
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static int
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linux_create_inferior (char *program, char **allargs)
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{
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int pid;
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@ -73,13 +75,16 @@ create_inferior (char *program, char **allargs)
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_exit (0177);
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}
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return pid;
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add_inferior (pid);
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/* FIXME remove */
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inferior_pid = pid;
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return 0;
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}
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/* Attach to an inferior process. */
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int
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myattach (int pid)
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static int
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linux_attach (int pid)
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{
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if (ptrace (PTRACE_ATTACH, pid, 0, 0) != 0)
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{
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@ -95,26 +100,27 @@ myattach (int pid)
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/* Kill the inferior process. Make us have no inferior. */
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void
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kill_inferior (void)
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static void
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linux_kill (void)
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{
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if (inferior_pid == 0)
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return;
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ptrace (PTRACE_KILL, inferior_pid, 0, 0);
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wait (0);
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clear_inferiors ();
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}
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/* Return nonzero if the given thread is still alive. */
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int
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mythread_alive (int pid)
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static int
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linux_thread_alive (int pid)
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{
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return 1;
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}
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/* Wait for process, returns status */
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unsigned char
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mywait (char *status)
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static unsigned char
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linux_wait (char *status)
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{
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int pid;
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int w;
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@ -129,11 +135,13 @@ mywait (char *status)
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{
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fprintf (stderr, "\nChild exited with retcode = %x \n", WEXITSTATUS (w));
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*status = 'W';
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clear_inferiors ();
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return ((unsigned char) WEXITSTATUS (w));
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}
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else if (!WIFSTOPPED (w))
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{
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fprintf (stderr, "\nChild terminated with signal = %x \n", WTERMSIG (w));
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clear_inferiors ();
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*status = 'X';
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return ((unsigned char) WTERMSIG (w));
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}
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@ -148,8 +156,8 @@ mywait (char *status)
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If STEP is nonzero, single-step it.
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If SIGNAL is nonzero, give it that signal. */
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void
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myresume (int step, int signal)
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static void
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linux_resume (int step, int signal)
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{
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errno = 0;
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ptrace (step ? PTRACE_SINGLESTEP : PTRACE_CONT, inferior_pid, 1, signal);
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@ -318,6 +326,7 @@ regsets_fetch_inferior_registers (void)
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regset->store_function (buf);
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regset ++;
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}
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return 0;
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}
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static int
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@ -360,18 +369,19 @@ regsets_store_inferior_registers (void)
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}
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else
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{
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perror ("Warning: ptrace(regsets_fetch_inferior_registers)");
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perror ("Warning: ptrace(regsets_store_inferior_registers)");
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}
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}
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regset ++;
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}
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return 0;
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}
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#endif /* HAVE_LINUX_REGSETS */
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void
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fetch_inferior_registers (int regno)
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linux_fetch_registers (int regno)
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{
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#ifdef HAVE_LINUX_REGSETS
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if (use_regsets_p)
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@ -386,7 +396,7 @@ fetch_inferior_registers (int regno)
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}
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void
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store_inferior_registers (int regno)
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linux_store_registers (int regno)
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{
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#ifdef HAVE_LINUX_REGSETS
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if (use_regsets_p)
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@ -404,8 +414,8 @@ store_inferior_registers (int regno)
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/* Copy LEN bytes from inferior's memory starting at MEMADDR
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to debugger memory starting at MYADDR. */
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void
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read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
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static void
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linux_read_memory (CORE_ADDR memaddr, char *myaddr, int len)
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{
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register int i;
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/* Round starting address down to longword boundary. */
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@ -433,8 +443,8 @@ read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
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On failure (cannot write the inferior)
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returns the value of errno. */
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int
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write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
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static int
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linux_write_memory (CORE_ADDR memaddr, char *myaddr, int len)
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{
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register int i;
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/* Round starting address down to longword boundary. */
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@ -477,8 +487,22 @@ write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len)
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return 0;
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}
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static struct target_ops linux_target_ops = {
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linux_create_inferior,
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linux_attach,
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linux_kill,
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linux_thread_alive,
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linux_resume,
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linux_wait,
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linux_fetch_registers,
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linux_store_registers,
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linux_read_memory,
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linux_write_memory,
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};
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void
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initialize_low (void)
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{
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set_target_ops (&linux_target_ops);
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init_registers ();
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}
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@ -186,6 +186,25 @@ fromhex (int a)
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return 0;
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}
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int
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unhexify (char *bin, const char *hex, int count)
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{
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int i;
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for (i = 0; i < count; i++)
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{
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if (hex[0] == 0 || hex[1] == 0)
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{
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/* Hex string is short, or of uneven length.
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Return the count that has been converted so far. */
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return i;
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}
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*bin++ = fromhex (hex[0]) * 16 + fromhex (hex[1]);
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hex += 2;
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}
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return i;
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}
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/* Convert number NIB to a hex digit. */
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static int
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@ -197,6 +216,24 @@ tohex (int nib)
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return 'a' + nib - 10;
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}
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int
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hexify (char *hex, const char *bin, int count)
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{
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int i;
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/* May use a length, or a nul-terminated string as input. */
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if (count == 0)
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count = strlen (bin);
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for (i = 0; i < count; i++)
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{
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*hex++ = tohex ((*bin >> 4) & 0xf);
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*hex++ = tohex (*bin++ & 0xf);
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}
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*hex = 0;
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return i;
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}
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/* Send a packet to the remote machine, with error checking.
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The data of the packet is in BUF. Returns >= 0 on success, -1 otherwise. */
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@ -292,7 +329,7 @@ input_interrupt (int unused)
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return;
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}
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kill (inferior_pid, SIGINT);
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kill (signal_pid, SIGINT);
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}
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}
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|
|
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@ -27,13 +27,14 @@ int thread_from_wait;
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int old_thread_from_wait;
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int extended_protocol;
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jmp_buf toplevel;
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int inferior_pid;
|
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|
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static unsigned char
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start_inferior (char *argv[], char *statusptr)
|
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{
|
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inferior_pid = create_inferior (argv[0], argv);
|
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fprintf (stderr, "Process %s created; pid = %d\n", argv[0], inferior_pid);
|
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/* FIXME Check error? Or turn to void. */
|
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create_inferior (argv[0], argv);
|
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/* FIXME Print pid properly. */
|
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fprintf (stderr, "Process %s created; pid = %d\n", argv[0], signal_pid);
|
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/* Wait till we are at 1st instruction in program, return signal number. */
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return mywait (statusptr);
|
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|
|
@ -47,7 +48,7 @@ attach_inferior (int pid, char *statusptr, unsigned char *sigptr)
|
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if (myattach (pid) != 0)
|
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return -1;
|
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|
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inferior_pid = pid;
|
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add_inferior (pid);
|
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|
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*sigptr = mywait (statusptr);
|
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|
||||
|
|
@ -55,6 +56,29 @@ attach_inferior (int pid, char *statusptr, unsigned char *sigptr)
|
|||
}
|
||||
|
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extern int remote_debug;
|
||||
|
||||
/* Handle all of the extended 'q' packets. */
|
||||
void
|
||||
handle_query (char *own_buf)
|
||||
{
|
||||
if (strcmp ("qSymbol::", own_buf) == 0)
|
||||
{
|
||||
#if 0
|
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strcpy (own_buf, "qSymbol:");
|
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hexify (own_buf + strlen ("qSymbol:"), "main", 4);
|
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putpkt (own_buf);
|
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getpkt (own_buf);
|
||||
fprintf (stderr, "Got %s", own_buf);
|
||||
#endif
|
||||
strcpy (own_buf, "OK");
|
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return;
|
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}
|
||||
|
||||
/* Otherwise we didn't know what packet it was. Say we didn't
|
||||
understand it. */
|
||||
own_buf[0] = 0;
|
||||
}
|
||||
|
||||
static int attached;
|
||||
|
||||
int
|
||||
|
|
@ -132,6 +156,9 @@ main (int argc, char *argv[])
|
|||
ch = own_buf[i++];
|
||||
switch (ch)
|
||||
{
|
||||
case 'q':
|
||||
handle_query (own_buf);
|
||||
break;
|
||||
case 'd':
|
||||
remote_debug = !remote_debug;
|
||||
break;
|
||||
|
|
|
|||
|
|
@ -53,25 +53,24 @@ typedef long long CORE_ADDR;
|
|||
#include "regcache.h"
|
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#include "gdb/signals.h"
|
||||
|
||||
#include "target.h"
|
||||
|
||||
/* Target-specific functions */
|
||||
|
||||
int create_inferior (char *program, char **allargs);
|
||||
void kill_inferior (void);
|
||||
void fetch_inferior_registers (int regno);
|
||||
void store_inferior_registers (int regno);
|
||||
int mythread_alive (int pid);
|
||||
void myresume (int step, int signo);
|
||||
unsigned char mywait (char *status);
|
||||
void read_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len);
|
||||
int write_inferior_memory (CORE_ADDR memaddr, char *myaddr, int len);
|
||||
int create_inferior ();
|
||||
void initialize_low ();
|
||||
|
||||
/* Target-specific variables */
|
||||
|
||||
extern char *registers;
|
||||
|
||||
/* From inferiors.c. */
|
||||
|
||||
struct inferior_info;
|
||||
extern struct inferior_info *current_inferior;
|
||||
extern int signal_pid;
|
||||
void add_inferior (int pid);
|
||||
void clear_inferiors (void);
|
||||
|
||||
/* Public variables in server.c */
|
||||
|
||||
extern int cont_thread;
|
||||
|
|
@ -80,7 +79,6 @@ extern int thread_from_wait;
|
|||
extern int old_thread_from_wait;
|
||||
|
||||
extern jmp_buf toplevel;
|
||||
extern int inferior_pid;
|
||||
|
||||
/* Functions from remote-utils.c */
|
||||
|
||||
|
|
@ -101,6 +99,10 @@ void decode_m_packet (char *from, CORE_ADDR * mem_addr_ptr,
|
|||
void decode_M_packet (char *from, CORE_ADDR * mem_addr_ptr,
|
||||
unsigned int *len_ptr, char *to);
|
||||
|
||||
int unhexify (char *bin, const char *hex, int count);
|
||||
int hexify (char *hex, const char *bin, int count);
|
||||
|
||||
|
||||
/* Functions from ``signals.c''. */
|
||||
enum target_signal target_signal_from_host (int hostsig);
|
||||
int target_signal_to_host_p (enum target_signal oursig);
|
||||
|
|
|
|||
|
|
@ -0,0 +1,33 @@
|
|||
/* Target operations for the remote server for GDB.
|
||||
Copyright 2002
|
||||
Free Software Foundation, Inc.
|
||||
|
||||
Contributed by MontaVista Software.
|
||||
|
||||
This file is part of GDB.
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#include "server.h"
|
||||
|
||||
struct target_ops *the_target;
|
||||
|
||||
void
|
||||
set_target_ops (struct target_ops *target)
|
||||
{
|
||||
the_target = (struct target_ops *) malloc (sizeof (*the_target));
|
||||
memcpy (the_target, target, sizeof (*the_target));
|
||||
}
|
||||
|
|
@ -0,0 +1,133 @@
|
|||
/* Target operations for the remote server for GDB.
|
||||
Copyright 2002
|
||||
Free Software Foundation, Inc.
|
||||
|
||||
Contributed by MontaVista Software.
|
||||
|
||||
This file is part of GDB.
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 59 Temple Place - Suite 330,
|
||||
Boston, MA 02111-1307, USA. */
|
||||
|
||||
#ifndef TARGET_H
|
||||
#define TARGET_H
|
||||
|
||||
struct target_ops
|
||||
{
|
||||
/* Start a new process.
|
||||
|
||||
PROGRAM is a path to the program to execute.
|
||||
ARGS is a standard NULL-terminated array of arguments,
|
||||
to be passed to the inferior as ``argv''.
|
||||
|
||||
Returns 0 on success, -1 on failure. Registers the new
|
||||
process with the process list. */
|
||||
|
||||
int (*create_inferior) (char *program, char **args);
|
||||
|
||||
/* Attach to a running process.
|
||||
|
||||
PID is the process ID to attach to, specified by the user
|
||||
or a higher layer. */
|
||||
|
||||
int (*attach) (int pid);
|
||||
|
||||
/* Kill all inferiors. */
|
||||
|
||||
void (*kill) (void);
|
||||
|
||||
/* Return 1 iff the thread with process ID PID is alive. */
|
||||
|
||||
int (*thread_alive) (int pid);
|
||||
|
||||
/* Resume the inferior process.
|
||||
|
||||
If STEP is non-zero, we want to single-step.
|
||||
|
||||
If SIGNAL is nonzero, send the process that signal as we resume it.
|
||||
*/
|
||||
|
||||
void (*resume) (int step, int signo);
|
||||
|
||||
/* Wait for the inferior process to change state.
|
||||
|
||||
STATUSP will be filled in with a response code to send to GDB.
|
||||
|
||||
Returns the signal which caused the process to stop. */
|
||||
|
||||
unsigned char (*wait) (char *status);
|
||||
|
||||
/* Fetch registers from the inferior process.
|
||||
|
||||
If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
|
||||
|
||||
void (*fetch_registers) (int regno);
|
||||
|
||||
/* Store registers to the inferior process.
|
||||
|
||||
If REGNO is -1, store all registers; otherwise, store at least REGNO. */
|
||||
|
||||
void (*store_registers) (int regno);
|
||||
|
||||
/* Read memory from the inferior process.
|
||||
|
||||
Read LEN bytes at MEMADDR into a buffer at MYADDR. */
|
||||
|
||||
void (*read_memory) (CORE_ADDR memaddr, char *myaddr, int len);
|
||||
|
||||
/* Write memory to the inferior process.
|
||||
|
||||
Write LEN bytes from the buffer at MYADDR to MEMADDR.
|
||||
|
||||
Returns 0 on success and errno on failure. */
|
||||
|
||||
int (*write_memory) (CORE_ADDR memaddr, char *myaddr, int len);
|
||||
};
|
||||
|
||||
extern struct target_ops *the_target;
|
||||
|
||||
void set_target_ops (struct target_ops *);
|
||||
|
||||
#define create_inferior(program, args) \
|
||||
(*the_target->create_inferior) (program, args)
|
||||
|
||||
#define myattach(pid) \
|
||||
(*the_target->attach) (pid)
|
||||
|
||||
#define kill_inferior() \
|
||||
(*the_target->kill) ()
|
||||
|
||||
#define mythread_alive(pid) \
|
||||
(*the_target->thread_alive) (pid)
|
||||
|
||||
#define myresume(step,signo) \
|
||||
(*the_target->resume) (step, signo)
|
||||
|
||||
#define mywait(statusp) \
|
||||
(*the_target->wait) (statusp)
|
||||
|
||||
#define fetch_inferior_registers(regno) \
|
||||
(*the_target->fetch_registers) (regno)
|
||||
|
||||
#define store_inferior_registers(regno) \
|
||||
(*the_target->store_registers) (regno)
|
||||
|
||||
#define read_inferior_memory(memaddr,myaddr,len) \
|
||||
(*the_target->read_memory) (memaddr, myaddr, len)
|
||||
|
||||
#define write_inferior_memory(memaddr,myaddr,len) \
|
||||
(*the_target->write_memory) (memaddr, myaddr, len)
|
||||
|
||||
#endif /* TARGET_H */
|
||||
Loading…
Reference in New Issue