/* Memory-access and commands for "inferior" process, for GDB.
- Copyright 1986, 87, 88, 89, 91, 92, 95, 96, 1998, 1999
+ Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995,
+ 1996, 1997, 1998, 1999, 2000, 2001, 2002
Free Software Foundation, Inc.
This file is part of GDB.
#include "environ.h"
#include "value.h"
#include "gdbcmd.h"
+#include "symfile.h"
#include "gdbcore.h"
#include "target.h"
#include "language.h"
#include "symfile.h"
#include "objfiles.h"
-#ifdef UI_OUT
+#include "completer.h"
#include "ui-out.h"
-#endif
#include "event-top.h"
#include "parser-defs.h"
static char *inferior_args;
+/* The inferior arguments as a vector. If INFERIOR_ARGC is nonzero,
+ then we must compute INFERIOR_ARGS from this (via the target). */
+
+static int inferior_argc;
+static char **inferior_argv;
+
/* File name for default use for standard in/out in the inferior. */
char *inferior_io_terminal;
being debugged it should be nonzero (currently 3 is used) for remote
debugging. */
-int inferior_pid;
+ptid_t inferior_ptid;
/* Last signal that the inferior received (why it stopped). */
CORE_ADDR step_sp;
-/* 1 means step over all subroutine calls.
- 0 means don't step over calls (used by stepi).
- -1 means step over calls to undebuggable functions. */
-
-int step_over_calls;
+enum step_over_calls_kind step_over_calls;
/* If stepping, nonzero means step count is > 1
so don't print frame next time inferior stops
struct environ *inferior_environ;
\f
+/* Accessor routines. */
+
+char *
+get_inferior_args (void)
+{
+ if (inferior_argc != 0)
+ {
+ char *n, *old;
+
+ n = gdbarch_construct_inferior_arguments (current_gdbarch,
+ inferior_argc, inferior_argv);
+ old = set_inferior_args (n);
+ xfree (old);
+ }
+
+ if (inferior_args == NULL)
+ inferior_args = xstrdup ("");
+
+ return inferior_args;
+}
+
+char *
+set_inferior_args (char *newargs)
+{
+ char *saved_args = inferior_args;
+
+ inferior_args = newargs;
+ inferior_argc = 0;
+ inferior_argv = 0;
+
+ return saved_args;
+}
+
+void
+set_inferior_args_vector (int argc, char **argv)
+{
+ inferior_argc = argc;
+ inferior_argv = argv;
+}
+
+/* Notice when `set args' is run. */
+static void
+notice_args_set (char *args, int from_tty, struct cmd_list_element *c)
+{
+ inferior_argc = 0;
+ inferior_argv = 0;
+}
+
+/* Notice when `show args' is run. */
+static void
+notice_args_read (char *args, int from_tty, struct cmd_list_element *c)
+{
+ /* Might compute the value. */
+ get_inferior_args ();
+}
+
+\f
+/* Compute command-line string given argument vector. This does the
+ same shell processing as fork_inferior. */
+/* ARGSUSED */
+char *
+construct_inferior_arguments (struct gdbarch *gdbarch, int argc, char **argv)
+{
+ char *result;
+
+ if (STARTUP_WITH_SHELL)
+ {
+ /* This holds all the characters considered special to the
+ typical Unix shells. We include `^' because the SunOS
+ /bin/sh treats it as a synonym for `|'. */
+ char *special = "\"!#$&*()\\|[]{}<>?'\"`~^; \t\n";
+ int i;
+ int length = 0;
+ char *out, *cp;
+
+ /* We over-compute the size. It shouldn't matter. */
+ for (i = 0; i < argc; ++i)
+ length += 2 * strlen (argv[i]) + 1;
+
+ result = (char *) xmalloc (length);
+ out = result;
+
+ for (i = 0; i < argc; ++i)
+ {
+ if (i > 0)
+ *out++ = ' ';
+
+ for (cp = argv[i]; *cp; ++cp)
+ {
+ if (strchr (special, *cp) != NULL)
+ *out++ = '\\';
+ *out++ = *cp;
+ }
+ }
+ *out = '\0';
+ }
+ else
+ {
+ /* In this case we can't handle arguments that contain spaces,
+ tabs, or newlines -- see breakup_args(). */
+ int i;
+ int length = 0;
+
+ for (i = 0; i < argc; ++i)
+ {
+ char *cp = strchr (argv[i], ' ');
+ if (cp == NULL)
+ cp = strchr (argv[i], '\t');
+ if (cp == NULL)
+ cp = strchr (argv[i], '\n');
+ if (cp != NULL)
+ error ("can't handle command-line argument containing whitespace");
+ length += strlen (argv[i]) + 1;
+ }
+
+ result = (char *) xmalloc (length);
+ result[0] = '\0';
+ for (i = 0; i < argc; ++i)
+ {
+ if (i > 0)
+ strcat (result, " ");
+ strcat (result, argv[i]);
+ }
+ }
+
+ return result;
+}
+\f
/* This function detects whether or not a '&' character (indicating
background execution) has been added as *the last* of the arguments ARGS
dont_repeat ();
- if (inferior_pid != 0 && target_has_execution)
+ if (! ptid_equal (inferior_ptid, null_ptid) && target_has_execution)
{
if (from_tty
&& !query ("The program being debugged has been started already.\n\
clear_breakpoint_hit_counts ();
- exec_file = (char *) get_exec_file (0);
-
/* Purge old solib objfiles. */
objfile_purge_solibs ();
do_run_cleanups (NULL);
- /* The exec file is re-read every time we do a generic_mourn_inferior, so
- we just have to worry about the symbol file. */
+ /* The comment here used to read, "The exec file is re-read every
+ time we do a generic_mourn_inferior, so we just have to worry
+ about the symbol file." The `generic_mourn_inferior' function
+ gets called whenever the program exits. However, suppose the
+ program exits, and *then* the executable file changes? We need
+ to check again here. Since reopen_exec_file doesn't do anything
+ if the timestamp hasn't changed, I don't see the harm. */
+ reopen_exec_file ();
reread_symbols ();
+ exec_file = (char *) get_exec_file (0);
+
/* We keep symbols from add-symbol-file, on the grounds that the
user might want to add some symbols before running the program
(right?). But sometimes (dynamic loading where the user manually
}
else
{
- char *cmd;
int async_exec = strip_bg_char (&args);
/* If we get a request for running in the bg but the target
/* If there were other args, beside '&', process them. */
if (args)
{
- cmd = concat ("set args ", args, NULL);
- make_cleanup (free, cmd);
- execute_command (cmd, from_tty);
+ char *old_args = set_inferior_args (xstrdup (args));
+ xfree (old_args);
}
}
if (from_tty)
{
-#ifdef UI_OUT
ui_out_field_string (uiout, NULL, "Starting program");
ui_out_text (uiout, ": ");
if (exec_file)
ui_out_field_string (uiout, "execfile", exec_file);
ui_out_spaces (uiout, 1);
- ui_out_field_string (uiout, "infargs", inferior_args);
+ /* We call get_inferior_args() because we might need to compute
+ the value now. */
+ ui_out_field_string (uiout, "infargs", get_inferior_args ());
ui_out_text (uiout, "\n");
ui_out_flush (uiout);
-#else
- puts_filtered ("Starting program: ");
- if (exec_file)
- puts_filtered (exec_file);
- puts_filtered (" ");
- puts_filtered (inferior_args);
- puts_filtered ("\n");
- gdb_flush (gdb_stdout);
-#endif
}
- target_create_inferior (exec_file, inferior_args,
+ /* We call get_inferior_args() because we might need to compute
+ the value now. */
+ target_create_inferior (exec_file, get_inferior_args (),
environ_vector (inferior_environ));
}
static void
run_no_args_command (char *args, int from_tty)
{
- execute_command ("set args", from_tty);
- run_command ((char *) NULL, from_tty);
+ char *old_args = set_inferior_args (xstrdup (""));
+ xfree (old_args);
}
\f
while (num != 0)
{
set_ignore_count (num,
- parse_and_eval_address (proc_count_exp) - 1,
+ parse_and_eval_long (proc_count_exp) - 1,
from_tty);
/* set_ignore_count prints a message ending with a period.
So print two spaces before "Continuing.". */
async_disable_stdin ();
}
- count = count_string ? parse_and_eval_address (count_string) : 1;
+ count = count_string ? parse_and_eval_long (count_string) : 1;
if (!single_inst || skip_subroutines) /* leave si command alone */
{
/* It is stepi.
Don't step over function calls, not even to functions lacking
line numbers. */
- step_over_calls = 0;
+ step_over_calls = STEP_OVER_NONE;
}
if (skip_subroutines)
- step_over_calls = 1;
+ step_over_calls = STEP_OVER_ALL;
step_multi = (count > 1);
proceed ((CORE_ADDR) -1, TARGET_SIGNAL_DEFAULT, 1);
if (!single_inst)
{
find_pc_line_pc_range (stop_pc, &step_range_start, &step_range_end);
- if (step_range_end == 0)
+
+ /* If we have no line info, switch to stepi mode. */
+ if (step_range_end == 0 && step_stop_if_no_debug)
+ {
+ step_range_start = step_range_end = 1;
+ }
+ else if (step_range_end == 0)
{
char *name;
if (find_pc_partial_function (stop_pc, &name, &step_range_start,
/* It is stepi.
Don't step over function calls, not even to functions lacking
line numbers. */
- step_over_calls = 0;
+ step_over_calls = STEP_OVER_NONE;
}
if (skip_subroutines)
- step_over_calls = 1;
+ step_over_calls = STEP_OVER_ALL;
step_multi = (count > 1);
arg1 =
}
sal = sals.sals[0];
- free ((PTR) sals.sals);
+ xfree (sals.sals);
if (sal.symtab == 0 && sal.pc == 0)
error ("No source file has been specified.");
if (oursig == TARGET_SIGNAL_UNKNOWN)
{
/* No, try numeric. */
- int num = parse_and_eval_address (signum_exp);
+ int num = parse_and_eval_long (signum_exp);
if (num == 0)
oursig = TARGET_SIGNAL_0;
bpt = set_momentary_breakpoint (sal,
get_current_frame (),
bp_call_dummy);
- bpt->disposition = del;
+ bpt->disposition = disp_del;
/* If all error()s out of proceed ended up calling normal_stop (and
perhaps they should; it already does in the special case of error
step_range_end = sal.end;
}
- step_over_calls = 1;
+ step_over_calls = STEP_OVER_ALL;
step_frame_address = FRAME_FP (frame);
step_sp = read_sp ();
static void
print_return_value (int structure_return, struct type *value_type)
{
- register value_ptr value;
-#ifdef UI_OUT
+ struct value *value;
static struct ui_stream *stb = NULL;
-#endif /* UI_OUT */
if (!structure_return)
{
value = value_being_returned (value_type, stop_registers, structure_return);
-#ifdef UI_OUT
stb = ui_out_stream_new (uiout);
ui_out_text (uiout, "Value returned is ");
ui_out_field_fmt (uiout, "gdb-result-var", "$%d", record_latest_value (value));
- ui_out_text (uiout, "= ");
+ ui_out_text (uiout, " = ");
value_print (value, stb->stream, 0, Val_no_prettyprint);
ui_out_field_stream (uiout, "return-value", stb);
ui_out_text (uiout, "\n");
-#else /* UI_OUT */
- printf_filtered ("Value returned is $%d = ", record_latest_value (value));
- value_print (value, gdb_stdout, 0, Val_no_prettyprint);
- printf_filtered ("\n");
-#endif /* UI_OUT */
}
else
{
initiate the call, as opposed to the call_function_by_hand case */
#ifdef VALUE_RETURNED_FROM_STACK
value = 0;
-#ifdef UI_OUT
ui_out_text (uiout, "Value returned has type: ");
ui_out_field_string (uiout, "return-type", TYPE_NAME (value_type));
ui_out_text (uiout, ".");
ui_out_text (uiout, " Cannot determine contents\n");
-#else /* UI_OUT */
- printf_filtered ("Value returned has type: %s.", TYPE_NAME (value_type));
- printf_filtered (" Cannot determine contents\n");
-#endif /* UI_OUT */
#else
value = value_being_returned (value_type, stop_registers, structure_return);
-#ifdef UI_OUT
stb = ui_out_stream_new (uiout);
ui_out_text (uiout, "Value returned is ");
ui_out_field_fmt (uiout, "gdb-result-var", "$%d", record_latest_value (value));
- ui_out_text (uiout, "= ");
+ ui_out_text (uiout, " = ");
value_print (value, stb->stream, 0, Val_no_prettyprint);
ui_out_field_stream (uiout, "return-value", stb);
ui_out_text (uiout, "\n");
-#else
- printf_filtered ("Value returned is $%d = ", record_latest_value (value));
- value_print (value, gdb_stdout, 0, Val_no_prettyprint);
- printf_filtered ("\n");
-#endif
#endif
}
}
value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function));
if (!value_type)
- internal_error ("finish_command: function has no target type");
+ internal_error (__FILE__, __LINE__,
+ "finish_command: function has no target type");
if (TYPE_CODE (value_type) == TYPE_CODE_VOID)
{
if (from_tty)
{
printf_filtered ("Run till exit from ");
- print_stack_frame (selected_frame, selected_frame_level, 0);
+ print_stack_frame (selected_frame,
+ frame_relative_level (selected_frame), 0);
}
/* If running asynchronously and the target support asynchronous
value_type = TYPE_TARGET_TYPE (SYMBOL_TYPE (function));
if (!value_type)
- internal_error ("finish_command: function has no target type");
+ internal_error (__FILE__, __LINE__,
+ "finish_command: function has no target type");
/* FIXME: Shouldn't we do the cleanups before returning? */
if (TYPE_CODE (value_type) == TYPE_CODE_VOID)
}
else
set_in_environ (inferior_environ, var, val);
- free (var);
+ xfree (var);
}
static void
/* Can be null if path is not set */
if (!env)
env = "";
- exec_path = strsave (env);
+ exec_path = xstrdup (env);
mod_path (dirname, &exec_path);
set_in_environ (inferior_environ, path_var_name, exec_path);
- free (exec_path);
+ xfree (exec_path);
if (from_tty)
path_info ((char *) NULL, from_tty);
}
do_registers_info (int regnum, int fpregs)
{
register int i;
- int numregs = ARCH_NUM_REGS;
+ int numregs = NUM_REGS + NUM_PSEUDO_REGS;
+ char *raw_buffer = (char*) alloca (MAX_REGISTER_RAW_SIZE);
+ char *virtual_buffer = (char*) alloca (MAX_REGISTER_VIRTUAL_SIZE);
for (i = 0; i < numregs; i++)
{
- char raw_buffer[MAX_REGISTER_RAW_SIZE];
- char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
-
/* Decide between printing all regs, nonfloat regs, or specific reg. */
if (regnum == -1)
{
print_spaces_filtered (15 - strlen (REGISTER_NAME (i)), gdb_stdout);
/* Get the data in raw format. */
- if (read_relative_register_raw_bytes (i, raw_buffer))
+ if (! frame_register_read (selected_frame, i, raw_buffer))
{
printf_filtered ("*value not available*\n");
continue;
{
register int j;
-#ifdef INVALID_FLOAT
- if (INVALID_FLOAT (virtual_buffer, REGISTER_VIRTUAL_SIZE (i)))
- printf_filtered ("<invalid float>");
- else
-#endif
- val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
- gdb_stdout, 0, 1, 0, Val_pretty_default);
+ val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, 0,
+ gdb_stdout, 0, 1, 0, Val_pretty_default);
printf_filtered ("\t(raw 0x");
for (j = 0; j < REGISTER_RAW_SIZE (i); j++)
{
- register int idx = TARGET_BYTE_ORDER == BIG_ENDIAN ? j
+ register int idx = TARGET_BYTE_ORDER == BFD_ENDIAN_BIG ? j
: REGISTER_RAW_SIZE (i) - 1 - j;
printf_filtered ("%02x", (unsigned char) raw_buffer[idx]);
}
printf_filtered (")");
}
-
-/* FIXME! val_print probably can handle all of these cases now... */
-
- /* Else if virtual format is too long for printf,
- print in hex a byte at a time. */
- else if (REGISTER_VIRTUAL_SIZE (i) > (int) sizeof (long))
- {
- register int j;
- printf_filtered ("0x");
- for (j = 0; j < REGISTER_VIRTUAL_SIZE (i); j++)
- printf_filtered ("%02x", (unsigned char) virtual_buffer[j]);
- }
/* Else print as integer in hex and in decimal. */
else
{
end = addr_exp;
while (*end != '\0' && *end != ' ' && *end != '\t')
++end;
- numregs = ARCH_NUM_REGS;
+ numregs = NUM_REGS + NUM_PSEUDO_REGS;
regnum = target_map_name_to_register (addr_exp, end - addr_exp);
if (regnum >= 0)
if (*addr_exp >= '0' && *addr_exp <= '9')
regnum = atoi (addr_exp); /* Take a number */
if (regnum >= numregs) /* Bad name, or bad number */
- error ("%.*s: invalid register", end - addr_exp, addr_exp);
+ error ("%.*s: invalid register", (int) (end - addr_exp), addr_exp);
found:
DO_REGISTERS_INFO (regnum, fpregs);
void
attach_command (char *args, int from_tty)
{
-#ifdef SOLIB_ADD
- extern int auto_solib_add;
-#endif
-
char *exec_file;
char *full_exec_path = NULL;
exec_file = (char *) get_exec_file (0);
if (!exec_file)
{
- exec_file = target_pid_to_exec_file (inferior_pid);
+ exec_file = target_pid_to_exec_file (PIDGET (inferior_ptid));
if (exec_file)
{
/* It's possible we don't have a full path, but rather just a
full_exec_path = savestring (exec_file, strlen (exec_file));
exec_file_attach (full_exec_path, from_tty);
- symbol_file_command (full_exec_path, from_tty);
+ symbol_file_add_main (full_exec_path, from_tty);
}
}
#ifdef SOLIB_ADD
- if (auto_solib_add)
- {
- /* Add shared library symbols from the newly attached process, if any. */
- SOLIB_ADD ((char *) 0, from_tty, ¤t_target);
- re_enable_breakpoints_in_shlibs ();
- }
+ /* Add shared library symbols from the newly attached process, if any. */
+ SOLIB_ADD ((char *) 0, from_tty, ¤t_target, auto_solib_add);
+ re_enable_breakpoints_in_shlibs ();
#endif
/* Take any necessary post-attaching actions for this platform.
*/
- target_post_attach (inferior_pid);
+ target_post_attach (PIDGET (inferior_ptid));
normal_stop ();
/* Stop the execution of the target while running in async mode, in
the backgound. */
-#ifdef UI_OUT
+
void
interrupt_target_command_wrapper (char *args, int from_tty)
{
interrupt_target_command (args, from_tty);
}
-#endif
+
static void
interrupt_target_command (char *args, int from_tty)
{
static void
float_info (char *addr_exp, int from_tty)
{
-#ifdef FLOAT_INFO
- FLOAT_INFO;
-#else
- printf_filtered ("No floating point info available for this processor.\n");
-#endif
+ PRINT_FLOAT_INFO ();
}
\f
/* ARGSUSED */
{
struct cmd_list_element *c;
- add_com ("tty", class_run, tty_command,
- "Set terminal for future runs of program being debugged.");
+ c = add_com ("tty", class_run, tty_command,
+ "Set terminal for future runs of program being debugged.");
+ set_cmd_completer (c, filename_completer);
- add_show_from_set
- (add_set_cmd ("args", class_run, var_string_noescape,
- (char *) &inferior_args,
- "Set argument list to give program being debugged when it is started.\n\
+ c = add_set_cmd ("args", class_run, var_string_noescape,
+ (char *) &inferior_args,
+ "Set argument list to give program being debugged when it is started.\n\
Follow this command with any number of args, to be passed to the program.",
- &setlist),
- &showlist);
+ &setlist);
+ set_cmd_completer (c, filename_completer);
+ set_cmd_sfunc (c, notice_args_set);
+ c = add_show_from_set (c, &showlist);
+ set_cmd_sfunc (c, notice_args_read);
c = add_cmd
("environment", no_class, environment_info,
With an argument VAR, prints the value of environment variable VAR to\n\
give the program being debugged. With no arguments, prints the entire\n\
environment to be given to the program.", &showlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
add_prefix_cmd ("unset", no_class, unset_command,
- "Complement to certain \"set\" commands",
+ "Complement to certain \"set\" commands.",
&unsetlist, "unset ", 0, &cmdlist);
c = add_cmd ("environment", class_run, unset_environment_command,
"Cancel environment variable VAR for the program.\n\
This does not affect the program until the next \"run\" command.",
&unsetlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
c = add_cmd ("environment", class_run, set_environment_command,
"Set environment variable value to give the program.\n\
VALUES of environment variables are uninterpreted strings.\n\
This does not affect the program until the next \"run\" command.",
&setlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
- add_com ("path", class_files, path_command,
- "Add directory DIR(s) to beginning of search path for object files.\n\
+ c = add_com ("path", class_files, path_command,
+ "Add directory DIR(s) to beginning of search path for object files.\n\
$cwd in the path means the current working directory.\n\
This path is equivalent to the $PATH shell variable. It is a list of\n\
directories, separated by colons. These directories are searched to find\n\
fully linked executable files and separately compiled object files as needed.");
+ set_cmd_completer (c, filename_completer);
c = add_cmd ("paths", no_class, path_info,
"Current search path for finding object files.\n\
directories, separated by colons. These directories are searched to find\n\
fully linked executable files and separately compiled object files as needed.",
&showlist);
- c->completer = noop_completer;
+ set_cmd_completer (c, noop_completer);
add_com ("attach", class_run, attach_command,
"Attach to a process or file outside of GDB.\n\
Argument N means do this N times (or till program stops for another reason).");
add_com_alias ("s", "step", class_run, 1);
- add_com ("until", class_run, until_command,
- "Execute until the program reaches a source line greater than the current\n\
+ c = add_com ("until", class_run, until_command,
+ "Execute until the program reaches a source line greater than the current\n\
or a specified line or address or function (same args as break command).\n\
Execution will also stop upon exit from the current stack frame.");
+ set_cmd_completer (c, location_completer);
add_com_alias ("u", "until", class_run, 1);
- add_com ("jump", class_run, jump_command,
- "Continue program being debugged at specified line or address.\n\
+ c = add_com ("jump", class_run, jump_command,
+ "Continue program being debugged at specified line or address.\n\
Give as argument either LINENUM or *ADDR, where ADDR is an expression\n\
for an address to start at.");
+ set_cmd_completer (c, location_completer);
if (xdb_commands)
- add_com ("go", class_run, go_command,
- "Usage: go <location>\n\
+ {
+ c = add_com ("go", class_run, go_command,
+ "Usage: go <location>\n\
Continue program being debugged, stopping at specified line or \n\
address.\n\
Give as argument either LINENUM or *ADDR, where ADDR is an \n\
expression for an address to start at.\n\
This command is a combination of tbreak and jump.");
+ set_cmd_completer (c, location_completer);
+ }
if (xdb_commands)
add_com_alias ("g", "go", class_run, 1);
add_com_alias ("c", "cont", class_run, 1);
add_com_alias ("fg", "cont", class_run, 1);
- add_com ("run", class_run, run_command,
+ c = add_com ("run", class_run, run_command,
"Start debugged program. You may specify arguments to give it.\n\
Args may include \"*\", or \"[...]\"; they are expanded using \"sh\".\n\
Input and output redirection with \">\", \"<\", or \">>\" are also allowed.\n\n\
With no arguments, uses arguments last specified (with \"run\" or \"set args\").\n\
To cancel previous arguments and run with no arguments,\n\
use \"set args\" without arguments.");
+ set_cmd_completer (c, filename_completer);
add_com_alias ("r", "run", class_run, 1);
if (xdb_commands)
add_com ("R", class_run, run_no_args_command,
add_info ("float", float_info,
"Print the status of the floating point unit\n");
- inferior_args = savestring ("", 1); /* Initially no args */
inferior_environ = make_environ ();
init_environ (inferior_environ);
}
projects / binutils.git / blobdiff