binutils-gdb/gdb/mac-nat.c

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/* Target-vector operations for controlling Mac applications, for GDB.
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Copyright 1995, 1996, 1998, 1999, 2000, 2001
Free Software Foundation, Inc.
Written by Stan Shebs. Contributed by 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
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.
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This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without eve nthe implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
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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. */
/* Note that because all the available Mac compilers are ANSI or very
close, and this is a native-only file, the code may be purely ANSI. */
#include "defs.h"
#include "frame.h" /* required by inferior.h */
#include "inferior.h"
#include "target.h"
#include "gdb_wait.h"
#include "gdbcore.h"
#include "command.h"
#include <signal.h>
#include <sys/types.h>
#include <fcntl.h>
#include "buildsym.h"
#include "gdb_string.h"
#include "gdbthread.h"
#include "gdbcmd.h"
#include "regcache.h"
#include <Processes.h>
/* We call the functions "child_..." rather than "mac_..." so no one
is tempted to try to link this with other native-only code. */
/* Forward declaration */
extern struct target_ops child_ops;
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static void child_stop (void);
static void
child_fetch_inferior_registers (int r)
{
if (r < 0)
{
for (r = 0; r < NUM_REGS; r++)
child_fetch_inferior_registers (r);
}
else
{
supply_register (r, 0);
}
}
static void
child_store_inferior_registers (int r)
{
if (r < 0)
{
for (r = 0; r < NUM_REGS; r++)
child_store_inferior_registers (r);
}
else
{
read_register_gen (r, 0);
}
}
static int
child_wait (int pid, struct target_waitstatus *ourstatus)
{
}
/* Attach to process PID, then initialize for debugging it. */
static void
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child_attach (char *args, int from_tty)
{
ProcessSerialNumber psn;
ProcessInfoRec inforec;
Str31 name;
FSSpecPtr fsspec;
OSType code;
int pid;
char *exec_file;
if (!args)
error_no_arg ("process-id to attach");
pid = atoi (args);
psn.highLongOfPSN = 0;
psn.lowLongOfPSN = pid;
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inforec.processInfoLength = sizeof (ProcessInfoRec);
inforec.processName = name;
inforec.processAppSpec = fsspec;
if (GetProcessInformation (&psn, &inforec) == noErr)
{
if (from_tty)
{
exec_file = (char *) get_exec_file (0);
if (exec_file)
printf_unfiltered ("Attaching to program `%s', %s\n", exec_file,
target_pid_to_str (pid));
else
printf_unfiltered ("Attaching to %s\n", target_pid_to_str (pid));
gdb_flush (gdb_stdout);
}
/* Do we need to do anything special? */
attach_flag = 1;
inferior_pid = pid;
push_target (&child_ops);
}
}
static void
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child_detach (char *args, int from_tty)
{
char *exec_file;
if (from_tty)
{
exec_file = get_exec_file (0);
if (exec_file == 0)
exec_file = "";
printf_unfiltered ("Detaching from program: %s %s\n", exec_file,
target_pid_to_str (inferior_pid));
gdb_flush (gdb_stdout);
}
inferior_pid = 0;
unpush_target (&child_ops);
}
/* Print status information about what we're accessing. */
static void
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child_files_info (struct target_ops *ignore)
{
printf_unfiltered ("\tUsing the running image of %s %s.\n",
attach_flag ? "attached" : "child", target_pid_to_str (inferior_pid));
}
/* ARGSUSED */
static void
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child_open (char *arg, int from_tty)
{
error ("Use the \"run\" command to start a Mac application.");
}
/* Start an inferior Mac program and sets inferior_pid to its pid.
EXEC_FILE is the file to run.
ALLARGS is a string containing the arguments to the program.
ENV is the environment vector to pass. Errors reported with error(). */
static void
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child_create_inferior (char *exec_file, char *allargs, char **env)
{
LaunchParamBlockRec launchparms;
FSSpec fsspec;
OSErr launch_err;
if (!exec_file)
{
error ("No executable specified, use `target exec'.\n");
}
launchparms.launchBlockID = extendedBlock;
launchparms.launchEPBLength = extendedBlockLen;
launchparms.launchFileFlags = 0;
launchparms.launchControlFlags = launchContinue | launchNoFileFlags;
fsspec.vRefNum = 0;
fsspec.parID = 0;
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strcpy (fsspec.name + 1, exec_file);
fsspec.name[0] = strlen (exec_file);
launchparms.launchAppSpec = &fsspec;
launchparms.launchAppParameters = nil;
launch_err = LaunchApplication (&launchparms);
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if (launch_err == 999 /*memFullErr */ )
{
error ("Not enough memory to launch %s\n", exec_file);
}
else if (launch_err != noErr)
{
error ("Error launching %s, code %d\n", exec_file, launch_err);
}
inferior_pid = launchparms.launchProcessSN.lowLongOfPSN;
/* FIXME be sure that high long of PSN is 0 */
push_target (&child_ops);
init_wait_for_inferior ();
clear_proceed_status ();
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/* proceed ((CORE_ADDR) -1, TARGET_SIGNAL_0, 0); */
}
static void
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child_mourn_inferior (void)
{
unpush_target (&child_ops);
generic_mourn_inferior ();
}
static void
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child_stop (void)
{
}
int
child_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
struct mem_attrib *attrib,
struct target_ops *target)
{
int i;
for (i = 0; i < len; ++i)
{
if (write)
{
((char *) memaddr)[i] = myaddr[i];
}
else
{
myaddr[i] = ((char *) memaddr)[i];
}
}
return len;
}
void
child_kill_inferior (void)
{
}
void
child_resume (int pid, int step, enum target_signal signal)
{
}
static void
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child_prepare_to_store (void)
{
/* Do nothing, since we can store individual regs */
}
static int
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child_can_run (void)
{
return 1;
}
static void
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child_close (void)
{
}
static void
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info_proc (char *args, int from_tty)
{
ProcessSerialNumber psn;
ProcessInfoRec inforec;
Str31 name;
FSSpecPtr fsspec;
OSType code;
/* Eventually use args, but not right now. */
psn.highLongOfPSN = 0;
psn.lowLongOfPSN = kNoProcess;
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inforec.processInfoLength = sizeof (ProcessInfoRec);
inforec.processName = name;
inforec.processAppSpec = fsspec;
printf_filtered ("Process Name Sgnt Type PSN Loc Size FreeMem Time\n");
while (GetNextProcess (&psn) == noErr)
{
if (GetProcessInformation (&psn, &inforec) == noErr)
{
name[name[0] + 1] = '\0';
printf_filtered ("%-32.32s", name + 1);
code = inforec.processSignature;
printf_filtered (" %c%c%c%c",
(code >> 24) & 0xff,
(code >> 16) & 0xff,
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(code >> 8) & 0xff,
(code >> 0) & 0xff);
code = inforec.processType;
printf_filtered (" %c%c%c%c",
(code >> 24) & 0xff,
(code >> 16) & 0xff,
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(code >> 8) & 0xff,
(code >> 0) & 0xff);
if (psn.highLongOfPSN == 0)
printf_filtered (" %9d", psn.lowLongOfPSN);
else
printf_filtered (" %9d,%9d\n",
psn.highLongOfPSN, psn.lowLongOfPSN);
printf_filtered (" 0x%x", inforec.processLocation);
printf_filtered (" %9d", inforec.processSize);
printf_filtered (" %9d", inforec.processFreeMem);
printf_filtered (" %9d", inforec.processActiveTime);
printf_filtered ("\n");
}
}
}
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struct target_ops child_ops;
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static void
init_child_ops (void)
{
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child_ops.to_shortname = "mac";
child_ops.to_longname = "MacOS application";
child_ops.to_doc = "MacOS application (started by the \"run\" command).";
child_ops.to_open = child_open;
child_ops.to_close = child_close;
child_ops.to_attach = child_attach;
child_ops.to_post_attach = NULL;
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child_ops.to_require_attach = NULL; /* to_require_attach */
child_ops.to_detach = child_detach;
child_ops.to_require_detach = NULL; /* to_require_detach */
child_ops.to_resume = child_resume;
child_ops.to_wait = child_wait;
child_ops.to_post_wait = NULL; /* to_post_wait */
child_ops.to_fetch_registers = child_fetch_inferior_registers;
child_ops.to_store_registers = child_store_inferior_registers;
child_ops.to_prepare_to_store = child_prepare_to_store;
child_ops.to_xfer_memory = child_xfer_memory;
child_ops.to_files_info = child_files_info;
child_ops.to_insert_breakpoint = memory_insert_breakpoint;
child_ops.to_remove_breakpoint = memory_remove_breakpoint;
child_ops.to_terminal_init = 0;
child_ops.to_terminal_inferior = 0;
child_ops.to_terminal_ours_for_output = 0;
child_ops.to_terminal_ours = 0;
child_ops.to_terminal_info = 0;
child_ops.to_kill = child_kill_inferior;
child_ops.to_load = 0;
child_ops.to_lookup_symbol = 0;
child_ops.to_create_inferior = child_create_inferior;
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child_ops.to_post_startup_inferior = NULL; /* to_post_startup_inferior */
child_ops.to_acknowledge_created_inferior = NULL; /* to_acknowledge_created_inferior */
child_ops.to_clone_and_follow_inferior = NULL; /* to_clone_and_follow_inferior */
child_ops.to_post_follow_inferior_by_clone = NULL; /* to_post_follow_inferior_by_clone */
child_ops.to_insert_fork_catchpoint = NULL;
child_ops.to_remove_fork_catchpoint = NULL;
child_ops.to_insert_vfork_catchpoint = NULL;
child_ops.to_remove_vfork_catchpoint = NULL;
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child_ops.to_has_forked = NULL; /* to_has_forked */
child_ops.to_has_vforked = NULL; /* to_has_vforked */
child_ops.to_can_follow_vfork_prior_to_exec = NULL;
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child_ops.to_post_follow_vfork = NULL; /* to_post_follow_vfork */
child_ops.to_insert_exec_catchpoint = NULL;
child_ops.to_remove_exec_catchpoint = NULL;
child_ops.to_has_execd = NULL;
child_ops.to_reported_exec_events_per_exec_call = NULL;
child_ops.to_has_exited = NULL;
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child_ops.to_mourn_inferior = child_mourn_inferior;
child_ops.to_can_run = child_can_run;
child_ops.to_notice_signals = 0;
child_ops.to_thread_alive = 0;
child_ops.to_stop = child_stop;
child_ops.to_pid_to_exec_file = NULL; /* to_pid_to_exec_file */
child_ops.to_stratum = process_stratum;
child_ops.DONT_USE = 0;
child_ops.to_has_all_memory = 1;
child_ops.to_has_memory = 1;
child_ops.to_has_stack = 1;
child_ops.to_has_registers = 1;
child_ops.to_has_execution = 1;
child_ops.to_sections = 0;
child_ops.to_sections_end = 0;
child_ops.to_magic = OPS_MAGIC;
};
void
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_initialize_mac_nat (void)
{
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init_child_ops ();
add_info ("proc", info_proc,
"Show information about processes.");
}