#include "defs.h"
#include "symtab.h"
#include "frame.h"
#include "gdbtypes.h"
#include "expression.h"
#include "gdbcmd.h"
#include "value.h"
#include "target.h"
#include "language.h"
#include "gdb_string.h"
#include "inferior.h"
#include "tracepoint.h"
#include "remote.h"
#include "linespec.h"
#include "regcache.h"
#include "completer.h"
#include "gdb-events.h"
#include "block.h"
#include "dictionary.h"
#include "ax.h"
#include "ax-gdb.h"
#include "readline/readline.h"
#include "readline/history.h"
#undef savestring
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#define MAX_AGENT_EXPR_LEN 184
extern void (*deprecated_readline_begin_hook) (char *, ...);
extern char *(*deprecated_readline_hook) (char *);
extern void (*deprecated_readline_end_hook) (void);
extern void x_command (char *, int);
extern int addressprint;
extern void output_command (char *, int);
struct tracepoint *tracepoint_chain;
static int tracepoint_count;
static int traceframe_number;
static int tracepoint_number;
static struct symbol *traceframe_fun;
static struct symtab_and_line traceframe_sal;
static struct cmd_list_element *tfindlist;
static void trace_command (char *, int);
static void tracepoints_info (char *, int);
static void delete_trace_command (char *, int);
static void enable_trace_command (char *, int);
static void disable_trace_command (char *, int);
static void trace_pass_command (char *, int);
static void trace_actions_command (char *, int);
static void trace_start_command (char *, int);
static void trace_stop_command (char *, int);
static void trace_status_command (char *, int);
static void trace_find_command (char *, int);
static void trace_find_pc_command (char *, int);
static void trace_find_tracepoint_command (char *, int);
static void trace_find_line_command (char *, int);
static void trace_find_range_command (char *, int);
static void trace_find_outside_command (char *, int);
static void tracepoint_save_command (char *, int);
static void trace_dump_command (char *, int);
static void trace_mention (struct tracepoint *);
struct collection_list;
static void add_aexpr (struct collection_list *, struct agent_expr *);
static char *mem2hex (gdb_byte *, char *, int);
static void add_register (struct collection_list *collection,
unsigned int regno);
static struct cleanup *make_cleanup_free_actions (struct tracepoint *t);
static void free_actions_list (char **actions_list);
static void free_actions_list_cleanup_wrapper (void *);
extern void _initialize_tracepoint (void);
static int
target_is_remote (void)
{
if (current_target.to_shortname &&
(strcmp (current_target.to_shortname, "remote") == 0
|| strcmp (current_target.to_shortname, "extended-remote") == 0))
return 1;
else
return 0;
}
static void
trace_error (char *buf)
{
if (*buf++ != 'E')
return;
switch (*buf)
{
case '1':
if (*++buf == '0')
error (_("tracepoint.c: error in outgoing packet."));
else
error (_("tracepoint.c: error in outgoing packet at field #%ld."),
strtol (buf, NULL, 16));
case '2':
error (_("trace API error 0x%s."), ++buf);
default:
error (_("Target returns error code '%s'."), buf);
}
}
static char *
remote_get_noisy_reply (char *buf,
long sizeof_buf)
{
do
{
QUIT;
getpkt (buf, sizeof_buf, 0);
if (buf[0] == 0)
error (_("Target does not support this command."));
else if (buf[0] == 'E')
trace_error (buf);
else if (buf[0] == 'O' &&
buf[1] != 'K')
remote_console_output (buf + 1);
else
return buf;
}
while (1);
}
static void
set_tracepoint_count (int num)
{
tracepoint_count = num;
set_internalvar (lookup_internalvar ("tpnum"),
value_from_longest (builtin_type_int, (LONGEST) num));
}
static void
set_traceframe_num (int num)
{
traceframe_number = num;
set_internalvar (lookup_internalvar ("trace_frame"),
value_from_longest (builtin_type_int, (LONGEST) num));
}
static void
set_tracepoint_num (int num)
{
tracepoint_number = num;
set_internalvar (lookup_internalvar ("tracepoint"),
value_from_longest (builtin_type_int,
(LONGEST) num));
}
static void
set_traceframe_context (CORE_ADDR trace_pc)
{
static struct type *func_string, *file_string;
static struct type *func_range, *file_range;
struct value *func_val;
struct value *file_val;
static struct type *charstar;
int len;
if (charstar == (struct type *) NULL)
charstar = lookup_pointer_type (builtin_type_char);
if (trace_pc == -1)
{
traceframe_fun = 0;
traceframe_sal.pc = traceframe_sal.line = 0;
traceframe_sal.symtab = NULL;
set_internalvar (lookup_internalvar ("trace_func"),
value_from_pointer (charstar, (LONGEST) 0));
set_internalvar (lookup_internalvar ("trace_file"),
value_from_pointer (charstar, (LONGEST) 0));
set_internalvar (lookup_internalvar ("trace_line"),
value_from_longest (builtin_type_int,
(LONGEST) - 1));
return;
}
traceframe_sal = find_pc_line (trace_pc, 0);
traceframe_fun = find_pc_function (trace_pc);
set_internalvar (lookup_internalvar ("trace_line"),
value_from_longest (builtin_type_int,
(LONGEST) traceframe_sal.line));
if (traceframe_fun == NULL ||
DEPRECATED_SYMBOL_NAME (traceframe_fun) == NULL)
set_internalvar (lookup_internalvar ("trace_func"),
value_from_pointer (charstar, (LONGEST) 0));
else
{
len = strlen (DEPRECATED_SYMBOL_NAME (traceframe_fun));
func_range = create_range_type (func_range,
builtin_type_int, 0, len - 1);
func_string = create_array_type (func_string,
builtin_type_char, func_range);
func_val = allocate_value (func_string);
deprecated_set_value_type (func_val, func_string);
memcpy (value_contents_raw (func_val),
DEPRECATED_SYMBOL_NAME (traceframe_fun),
len);
deprecated_set_value_modifiable (func_val, 0);
set_internalvar (lookup_internalvar ("trace_func"), func_val);
}
if (traceframe_sal.symtab == NULL ||
traceframe_sal.symtab->filename == NULL)
set_internalvar (lookup_internalvar ("trace_file"),
value_from_pointer (charstar, (LONGEST) 0));
else
{
len = strlen (traceframe_sal.symtab->filename);
file_range = create_range_type (file_range,
builtin_type_int, 0, len - 1);
file_string = create_array_type (file_string,
builtin_type_char, file_range);
file_val = allocate_value (file_string);
deprecated_set_value_type (file_val, file_string);
memcpy (value_contents_raw (file_val),
traceframe_sal.symtab->filename,
len);
deprecated_set_value_modifiable (file_val, 0);
set_internalvar (lookup_internalvar ("trace_file"), file_val);
}
}
static struct tracepoint *
set_raw_tracepoint (struct symtab_and_line sal)
{
struct tracepoint *t, *tc;
struct cleanup *old_chain;
t = (struct tracepoint *) xmalloc (sizeof (struct tracepoint));
old_chain = make_cleanup (xfree, t);
memset (t, 0, sizeof (*t));
t->address = sal.pc;
if (sal.symtab == NULL)
t->source_file = NULL;
else
t->source_file = savestring (sal.symtab->filename,
strlen (sal.symtab->filename));
t->section = sal.section;
t->language = current_language->la_language;
t->input_radix = input_radix;
t->line_number = sal.line;
t->enabled_p = 1;
t->next = 0;
t->step_count = 0;
t->pass_count = 0;
t->addr_string = NULL;
tc = tracepoint_chain;
if (tc == 0)
tracepoint_chain = t;
else
{
while (tc->next)
tc = tc->next;
tc->next = t;
}
discard_cleanups (old_chain);
return t;
}
static void
trace_command (char *arg, int from_tty)
{
char **canonical = (char **) NULL;
struct symtabs_and_lines sals;
struct symtab_and_line sal;
struct tracepoint *t;
char *addr_start = 0, *addr_end = 0;
int i;
if (!arg || !*arg)
error (_("trace command requires an argument"));
if (from_tty && info_verbose)
printf_filtered ("TRACE %s\n", arg);
addr_start = arg;
sals = decode_line_1 (&arg, 1, (struct symtab *) NULL,
0, &canonical, NULL);
addr_end = arg;
if (!sals.nelts)
return;
for (i = 0; i < sals.nelts; i++)
resolve_sal_pc (&sals.sals[i]);
for (i = 0; i < sals.nelts; i++)
{
sal = sals.sals[i];
t = set_raw_tracepoint (sal);
set_tracepoint_count (tracepoint_count + 1);
t->number = tracepoint_count;
if (canonical != (char **) NULL && canonical[i] != NULL)
t->addr_string = canonical[i];
else if (addr_start)
t->addr_string = savestring (addr_start, addr_end - addr_start);
trace_mention (t);
}
if (sals.nelts > 1)
{
printf_filtered ("Multiple tracepoints were set.\n");
printf_filtered ("Use 'delete trace' to delete unwanted tracepoints.\n");
}
}
static void
trace_mention (struct tracepoint *tp)
{
printf_filtered ("Tracepoint %d", tp->number);
if (addressprint || (tp->source_file == NULL))
{
printf_filtered (" at ");
deprecated_print_address_numeric (tp->address, 1, gdb_stdout);
}
if (tp->source_file)
printf_filtered (": file %s, line %d.",
tp->source_file, tp->line_number);
printf_filtered ("\n");
}
static void
tracepoints_info (char *tpnum_exp, int from_tty)
{
struct tracepoint *t;
struct action_line *action;
int found_a_tracepoint = 0;
char wrap_indent[80];
struct symbol *sym;
int tpnum = -1;
if (tpnum_exp)
tpnum = parse_and_eval_long (tpnum_exp);
ALL_TRACEPOINTS (t)
if (tpnum == -1 || tpnum == t->number)
{
extern int addressprint;
if (!found_a_tracepoint++)
{
printf_filtered ("Num Enb ");
if (addressprint)
{
if (TARGET_ADDR_BIT <= 32)
printf_filtered ("Address ");
else
printf_filtered ("Address ");
}
printf_filtered ("PassC StepC What\n");
}
strcpy (wrap_indent, " ");
if (addressprint)
{
if (TARGET_ADDR_BIT <= 32)
strcat (wrap_indent, " ");
else
strcat (wrap_indent, " ");
}
printf_filtered ("%-3d %-3s ", t->number,
t->enabled_p ? "y" : "n");
if (addressprint)
{
char *tmp;
if (TARGET_ADDR_BIT <= 32)
tmp = hex_string_custom (t->address & (CORE_ADDR) 0xffffffff,
8);
else
tmp = hex_string_custom (t->address, 16);
printf_filtered ("%s ", tmp);
}
printf_filtered ("%-5d %-5ld ", t->pass_count, t->step_count);
if (t->source_file)
{
sym = find_pc_sect_function (t->address, t->section);
if (sym)
{
fputs_filtered ("in ", gdb_stdout);
fputs_filtered (SYMBOL_PRINT_NAME (sym), gdb_stdout);
wrap_here (wrap_indent);
fputs_filtered (" at ", gdb_stdout);
}
fputs_filtered (t->source_file, gdb_stdout);
printf_filtered (":%d", t->line_number);
}
else
print_address_symbolic (t->address, gdb_stdout, demangle, " ");
printf_filtered ("\n");
if (t->actions)
{
printf_filtered (" Actions for tracepoint %d: \n", t->number);
for (action = t->actions; action; action = action->next)
{
printf_filtered ("\t%s\n", action->action);
}
}
}
if (!found_a_tracepoint)
{
if (tpnum == -1)
printf_filtered ("No tracepoints.\n");
else
printf_filtered ("No tracepoint number %d.\n", tpnum);
}
}
enum tracepoint_opcode
{
enable_op,
disable_op,
delete_op
};
static void
tracepoint_operation (struct tracepoint *t, int from_tty,
enum tracepoint_opcode opcode)
{
struct tracepoint *t2;
if (t == NULL)
return;
switch (opcode)
{
case enable_op:
t->enabled_p = 1;
tracepoint_modify_event (t->number);
break;
case disable_op:
t->enabled_p = 0;
tracepoint_modify_event (t->number);
break;
case delete_op:
if (tracepoint_chain == t)
tracepoint_chain = t->next;
ALL_TRACEPOINTS (t2)
if (t2->next == t)
{
tracepoint_delete_event (t2->number);
t2->next = t->next;
break;
}
if (t->addr_string)
xfree (t->addr_string);
if (t->source_file)
xfree (t->source_file);
if (t->actions)
free_actions (t);
xfree (t);
break;
}
}
struct tracepoint *
get_tracepoint_by_number (char **arg, int multi_p, int optional_p)
{
struct tracepoint *t;
int tpnum;
char *instring = arg == NULL ? NULL : *arg;
if (arg == NULL || *arg == NULL || ! **arg)
{
if (optional_p)
tpnum = tracepoint_count;
else
error_no_arg (_("tracepoint number"));
}
else
tpnum = multi_p ? get_number_or_range (arg) : get_number (arg);
if (tpnum <= 0)
{
if (instring && *instring)
printf_filtered ("bad tracepoint number at or near '%s'\n",
instring);
else
printf_filtered ("Tracepoint argument missing and no previous tracepoint\n");
return NULL;
}
ALL_TRACEPOINTS (t)
if (t->number == tpnum)
{
return t;
}
printf_unfiltered ("No tracepoint number %d.\n", tpnum);
return NULL;
}
static void
map_args_over_tracepoints (char *args, int from_tty,
enum tracepoint_opcode opcode)
{
struct tracepoint *t, *tmp;
if (args == 0 || *args == 0)
ALL_TRACEPOINTS_SAFE (t, tmp)
tracepoint_operation (t, from_tty, opcode);
else
while (*args)
{
QUIT;
t = get_tracepoint_by_number (&args, 1, 0);
tracepoint_operation (t, from_tty, opcode);
while (*args == ' ' || *args == '\t')
args++;
}
}
static void
enable_trace_command (char *args, int from_tty)
{
dont_repeat ();
map_args_over_tracepoints (args, from_tty, enable_op);
}
static void
disable_trace_command (char *args, int from_tty)
{
dont_repeat ();
map_args_over_tracepoints (args, from_tty, disable_op);
}
static void
delete_trace_command (char *args, int from_tty)
{
dont_repeat ();
if (!args || !*args)
if (from_tty)
if (tracepoint_chain)
if (!query ("Delete all tracepoints? "))
return;
map_args_over_tracepoints (args, from_tty, delete_op);
}
static void
trace_pass_command (char *args, int from_tty)
{
struct tracepoint *t1 = (struct tracepoint *) -1, *t2;
unsigned int count;
int all = 0;
if (args == 0 || *args == 0)
error (_("passcount command requires an argument (count + optional TP num)"));
count = strtoul (args, &args, 10);
while (*args && isspace ((int) *args))
args++;
if (*args && strncasecmp (args, "all", 3) == 0)
{
args += 3;
all = 1;
if (*args)
error (_("Junk at end of arguments."));
}
else
t1 = get_tracepoint_by_number (&args, 1, 1);
do
{
if (t1)
{
ALL_TRACEPOINTS (t2)
if (t1 == (struct tracepoint *) -1 || t1 == t2)
{
t2->pass_count = count;
tracepoint_modify_event (t2->number);
if (from_tty)
printf_filtered ("Setting tracepoint %d's passcount to %d\n",
t2->number, count);
}
if (! all && *args)
t1 = get_tracepoint_by_number (&args, 1, 0);
}
}
while (*args);
}
static void read_actions (struct tracepoint *);
static void
end_actions_pseudocommand (char *args, int from_tty)
{
error (_("This command cannot be used at the top level."));
}
static void
while_stepping_pseudocommand (char *args, int from_tty)
{
error (_("This command can only be used in a tracepoint actions list."));
}
static void
collect_pseudocommand (char *args, int from_tty)
{
error (_("This command can only be used in a tracepoint actions list."));
}
static void
trace_actions_command (char *args, int from_tty)
{
struct tracepoint *t;
char tmpbuf[128];
char *end_msg = "End with a line saying just \"end\".";
t = get_tracepoint_by_number (&args, 0, 1);
if (t)
{
sprintf (tmpbuf, "Enter actions for tracepoint %d, one per line.",
t->number);
if (from_tty)
{
if (deprecated_readline_begin_hook)
(*deprecated_readline_begin_hook) ("%s %s\n", tmpbuf, end_msg);
else if (input_from_terminal_p ())
printf_filtered ("%s\n%s\n", tmpbuf, end_msg);
}
free_actions (t);
t->step_count = 0;
read_actions (t);
if (deprecated_readline_end_hook)
(*deprecated_readline_end_hook) ();
}
}
static void
read_actions (struct tracepoint *t)
{
char *line;
char *prompt1 = "> ", *prompt2 = " > ";
char *prompt = prompt1;
enum actionline_type linetype;
extern FILE *instream;
struct action_line *next = NULL, *temp;
struct cleanup *old_chain;
immediate_quit++;
#ifdef STOP_SIGNAL
if (job_control)
signal (STOP_SIGNAL, handle_stop_sig);
#endif
old_chain = make_cleanup_free_actions (t);
while (1)
{
wrap_here ("");
gdb_flush (gdb_stdout);
gdb_flush (gdb_stderr);
if (deprecated_readline_hook && instream == NULL)
line = (*deprecated_readline_hook) (prompt);
else if (instream == stdin && ISATTY (instream))
{
line = gdb_readline_wrapper (prompt);
if (line && *line)
add_history (line);
}
else
line = gdb_readline (0);
if (!line)
line = "end";
linetype = validate_actionline (&line, t);
if (linetype == BADLINE)
continue;
temp = xmalloc (sizeof (struct action_line));
temp->next = NULL;
temp->action = line;
if (next == NULL)
t->actions = next = temp;
else
{
next->next = temp;
next = temp;
}
if (linetype == STEPPING)
{
if (prompt == prompt2)
{
warning (_("Already processing 'while-stepping'"));
continue;
}
else
prompt = prompt2;
}
else if (linetype == END)
{
if (prompt == prompt2)
{
prompt = prompt1;
}
else
{
if (t->actions->next == NULL)
{
free_actions (t);
}
break;
}
}
}
#ifdef STOP_SIGNAL
if (job_control)
signal (STOP_SIGNAL, SIG_DFL);
#endif
immediate_quit--;
discard_cleanups (old_chain);
}
enum actionline_type
validate_actionline (char **line, struct tracepoint *t)
{
struct cmd_list_element *c;
struct expression *exp = NULL;
struct cleanup *old_chain = NULL;
char *p;
if (*line == NULL)
return END;
for (p = *line; isspace ((int) *p);)
p++;
if (*p == '\0')
return BADLINE;
if (*p == '#')
return GENERIC;
c = lookup_cmd (&p, cmdlist, "", -1, 1);
if (c == 0)
{
warning (_("'%s' is not an action that I know, or is ambiguous."),
p);
return BADLINE;
}
if (cmd_cfunc_eq (c, collect_pseudocommand))
{
struct agent_expr *aexpr;
struct agent_reqs areqs;
do
{
QUIT;
while (isspace ((int) *p))
p++;
if (*p == '$')
{
if ((0 == strncasecmp ("reg", p + 1, 3)) ||
(0 == strncasecmp ("arg", p + 1, 3)) ||
(0 == strncasecmp ("loc", p + 1, 3)))
{
p = strchr (p, ',');
continue;
}
}
exp = parse_exp_1 (&p, block_for_pc (t->address), 1);
old_chain = make_cleanup (free_current_contents, &exp);
if (exp->elts[0].opcode == OP_VAR_VALUE)
{
if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST)
{
warning (_("constant %s (value %ld) will not be collected."),
DEPRECATED_SYMBOL_NAME (exp->elts[2].symbol),
SYMBOL_VALUE (exp->elts[2].symbol));
return BADLINE;
}
else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT)
{
warning (_("%s is optimized away and cannot be collected."),
DEPRECATED_SYMBOL_NAME (exp->elts[2].symbol));
return BADLINE;
}
}
aexpr = gen_trace_for_expr (t->address, exp);
make_cleanup_free_agent_expr (aexpr);
if (aexpr->len > MAX_AGENT_EXPR_LEN)
error (_("expression too complicated, try simplifying"));
ax_reqs (aexpr, &areqs);
(void) make_cleanup (xfree, areqs.reg_mask);
if (areqs.flaw != agent_flaw_none)
error (_("malformed expression"));
if (areqs.min_height < 0)
error (_("gdb: Internal error: expression has min height < 0"));
if (areqs.max_height > 20)
error (_("expression too complicated, try simplifying"));
do_cleanups (old_chain);
}
while (p && *p++ == ',');
return GENERIC;
}
else if (cmd_cfunc_eq (c, while_stepping_pseudocommand))
{
char *steparg;
while (isspace ((int) *p))
p++;
steparg = p;
if (*p == '\0' ||
(t->step_count = strtol (p, &p, 0)) == 0)
{
warning (_("'%s': bad step-count; command ignored."), *line);
return BADLINE;
}
return STEPPING;
}
else if (cmd_cfunc_eq (c, end_actions_pseudocommand))
return END;
else
{
warning (_("'%s' is not a supported tracepoint action."), *line);
return BADLINE;
}
}
void
free_actions (struct tracepoint *t)
{
struct action_line *line, *next;
for (line = t->actions; line; line = next)
{
next = line->next;
if (line->action)
xfree (line->action);
xfree (line);
}
t->actions = NULL;
}
static void
do_free_actions_cleanup (void *t)
{
free_actions (t);
}
static struct cleanup *
make_cleanup_free_actions (struct tracepoint *t)
{
return make_cleanup (do_free_actions_cleanup, t);
}
struct memrange
{
int type;
bfd_signed_vma start;
bfd_signed_vma end;
};
struct collection_list
{
unsigned char regs_mask[32];
long listsize;
long next_memrange;
struct memrange *list;
long aexpr_listsize;
long next_aexpr_elt;
struct agent_expr **aexpr_list;
}
tracepoint_list, stepping_list;
static int memrange_cmp (const void *, const void *);
static int
memrange_cmp (const void *va, const void *vb)
{
const struct memrange *a = va, *b = vb;
if (a->type < b->type)
return -1;
if (a->type > b->type)
return 1;
if (a->type == 0)
{
if ((bfd_vma) a->start < (bfd_vma) b->start)
return -1;
if ((bfd_vma) a->start > (bfd_vma) b->start)
return 1;
}
else
{
if (a->start < b->start)
return -1;
if (a->start > b->start)
return 1;
}
return 0;
}
static void
memrange_sortmerge (struct collection_list *memranges)
{
int a, b;
qsort (memranges->list, memranges->next_memrange,
sizeof (struct memrange), memrange_cmp);
if (memranges->next_memrange > 0)
{
for (a = 0, b = 1; b < memranges->next_memrange; b++)
{
if (memranges->list[a].type == memranges->list[b].type &&
memranges->list[b].start - memranges->list[a].end <=
MAX_REGISTER_SIZE)
{
if (memranges->list[b].end > memranges->list[a].end)
memranges->list[a].end = memranges->list[b].end;
continue;
}
a++;
if (a != b)
memcpy (&memranges->list[a], &memranges->list[b],
sizeof (struct memrange));
}
memranges->next_memrange = a + 1;
}
}
static void
add_register (struct collection_list *collection, unsigned int regno)
{
if (info_verbose)
printf_filtered ("collect register %d\n", regno);
if (regno > (8 * sizeof (collection->regs_mask)))
error (_("Internal: register number %d too large for tracepoint"),
regno);
collection->regs_mask[regno / 8] |= 1 << (regno % 8);
}
static void
add_memrange (struct collection_list *memranges,
int type, bfd_signed_vma base,
unsigned long len)
{
if (info_verbose)
{
printf_filtered ("(%d,", type);
printf_vma (base);
printf_filtered (",%ld)\n", len);
}
memranges->list[memranges->next_memrange].type = type;
memranges->list[memranges->next_memrange].start = base;
memranges->list[memranges->next_memrange].end = base + len;
memranges->next_memrange++;
if (memranges->next_memrange >= memranges->listsize)
{
memranges->listsize *= 2;
memranges->list = xrealloc (memranges->list,
memranges->listsize);
}
if (type != -1)
add_register (memranges, type);
}
static void
collect_symbol (struct collection_list *collect,
struct symbol *sym,
long frame_regno, long frame_offset)
{
unsigned long len;
unsigned int reg;
bfd_signed_vma offset;
len = TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym)));
switch (SYMBOL_CLASS (sym))
{
default:
printf_filtered ("%s: don't know symbol class %d\n",
DEPRECATED_SYMBOL_NAME (sym),
SYMBOL_CLASS (sym));
break;
case LOC_CONST:
printf_filtered ("constant %s (value %ld) will not be collected.\n",
DEPRECATED_SYMBOL_NAME (sym), SYMBOL_VALUE (sym));
break;
case LOC_STATIC:
offset = SYMBOL_VALUE_ADDRESS (sym);
if (info_verbose)
{
char tmp[40];
sprintf_vma (tmp, offset);
printf_filtered ("LOC_STATIC %s: collect %ld bytes at %s.\n",
DEPRECATED_SYMBOL_NAME (sym), len,
tmp );
}
add_memrange (collect, -1, offset, len);
break;
case LOC_REGISTER:
case LOC_REGPARM:
reg = SYMBOL_VALUE (sym);
if (info_verbose)
printf_filtered ("LOC_REG[parm] %s: ",
DEPRECATED_SYMBOL_NAME (sym));
add_register (collect, reg);
if (TYPE_CODE (SYMBOL_TYPE (sym)) == TYPE_CODE_FLT &&
len > register_size (current_gdbarch, reg))
add_register (collect, reg + 1);
break;
case LOC_REF_ARG:
printf_filtered ("Sorry, don't know how to do LOC_REF_ARG yet.\n");
printf_filtered (" (will not collect %s)\n",
DEPRECATED_SYMBOL_NAME (sym));
break;
case LOC_ARG:
reg = frame_regno;
offset = frame_offset + SYMBOL_VALUE (sym);
if (info_verbose)
{
printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
DEPRECATED_SYMBOL_NAME (sym), len);
printf_vma (offset);
printf_filtered (" from frame ptr reg %d\n", reg);
}
add_memrange (collect, reg, offset, len);
break;
case LOC_REGPARM_ADDR:
reg = SYMBOL_VALUE (sym);
offset = 0;
if (info_verbose)
{
printf_filtered ("LOC_REGPARM_ADDR %s: Collect %ld bytes at offset ",
DEPRECATED_SYMBOL_NAME (sym), len);
printf_vma (offset);
printf_filtered (" from reg %d\n", reg);
}
add_memrange (collect, reg, offset, len);
break;
case LOC_LOCAL:
case LOC_LOCAL_ARG:
reg = frame_regno;
offset = frame_offset + SYMBOL_VALUE (sym);
if (info_verbose)
{
printf_filtered ("LOC_LOCAL %s: Collect %ld bytes at offset ",
DEPRECATED_SYMBOL_NAME (sym), len);
printf_vma (offset);
printf_filtered (" from frame ptr reg %d\n", reg);
}
add_memrange (collect, reg, offset, len);
break;
case LOC_BASEREG:
case LOC_BASEREG_ARG:
reg = SYMBOL_BASEREG (sym);
offset = SYMBOL_VALUE (sym);
if (info_verbose)
{
printf_filtered ("LOC_BASEREG %s: collect %ld bytes at offset ",
DEPRECATED_SYMBOL_NAME (sym), len);
printf_vma (offset);
printf_filtered (" from basereg %d\n", reg);
}
add_memrange (collect, reg, offset, len);
break;
case LOC_UNRESOLVED:
printf_filtered ("Don't know LOC_UNRESOLVED %s\n",
DEPRECATED_SYMBOL_NAME (sym));
break;
case LOC_OPTIMIZED_OUT:
printf_filtered ("%s has been optimized out of existence.\n",
DEPRECATED_SYMBOL_NAME (sym));
break;
}
}
static void
add_local_symbols (struct collection_list *collect, CORE_ADDR pc,
long frame_regno, long frame_offset, int type)
{
struct symbol *sym;
struct block *block;
struct dict_iterator iter;
int count = 0;
block = block_for_pc (pc);
while (block != 0)
{
QUIT;
ALL_BLOCK_SYMBOLS (block, iter, sym)
{
switch (SYMBOL_CLASS (sym))
{
default:
warning (_("don't know how to trace local symbol %s"),
DEPRECATED_SYMBOL_NAME (sym));
case LOC_LOCAL:
case LOC_STATIC:
case LOC_REGISTER:
case LOC_BASEREG:
if (type == 'L')
{
count++;
collect_symbol (collect, sym, frame_regno,
frame_offset);
}
break;
case LOC_ARG:
case LOC_LOCAL_ARG:
case LOC_REF_ARG:
case LOC_REGPARM:
case LOC_REGPARM_ADDR:
case LOC_BASEREG_ARG:
if (type == 'A')
{
count++;
collect_symbol (collect, sym, frame_regno,
frame_offset);
}
}
}
if (BLOCK_FUNCTION (block))
break;
else
block = BLOCK_SUPERBLOCK (block);
}
if (count == 0)
warning (_("No %s found in scope."),
type == 'L' ? "locals" : "args");
}
static void
clear_collection_list (struct collection_list *list)
{
int ndx;
list->next_memrange = 0;
for (ndx = 0; ndx < list->next_aexpr_elt; ndx++)
{
free_agent_expr (list->aexpr_list[ndx]);
list->aexpr_list[ndx] = NULL;
}
list->next_aexpr_elt = 0;
memset (list->regs_mask, 0, sizeof (list->regs_mask));
}
static char **
stringify_collection_list (struct collection_list *list, char *string)
{
char temp_buf[2048];
char tmp2[40];
int count;
int ndx = 0;
char *(*str_list)[];
char *end;
long i;
count = 1 + list->next_memrange + list->next_aexpr_elt + 1;
str_list = (char *(*)[]) xmalloc (count * sizeof (char *));
for (i = sizeof (list->regs_mask) - 1; i > 0; i--)
if (list->regs_mask[i] != 0)
break;
if (list->regs_mask[i] != 0)
{
if (info_verbose)
printf_filtered ("\nCollecting registers (mask): 0x");
end = temp_buf;
*end++ = 'R';
for (; i >= 0; i--)
{
QUIT;
if (info_verbose)
printf_filtered ("%02X", list->regs_mask[i]);
sprintf (end, "%02X", list->regs_mask[i]);
end += 2;
}
(*str_list)[ndx] = savestring (temp_buf, end - temp_buf);
ndx++;
}
if (info_verbose)
printf_filtered ("\n");
if (list->next_memrange > 0 && info_verbose)
printf_filtered ("Collecting memranges: \n");
for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++)
{
QUIT;
sprintf_vma (tmp2, list->list[i].start);
if (info_verbose)
{
printf_filtered ("(%d, %s, %ld)\n",
list->list[i].type,
tmp2,
(long) (list->list[i].end - list->list[i].start));
}
if (count + 27 > MAX_AGENT_EXPR_LEN)
{
(*str_list)[ndx] = savestring (temp_buf, count);
ndx++;
count = 0;
end = temp_buf;
}
sprintf (end, "M%X,%s,%lX",
list->list[i].type,
tmp2,
(long) (list->list[i].end - list->list[i].start));
count += strlen (end);
end = temp_buf + count;
}
for (i = 0; i < list->next_aexpr_elt; i++)
{
QUIT;
if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN)
{
(*str_list)[ndx] = savestring (temp_buf, count);
ndx++;
count = 0;
end = temp_buf;
}
sprintf (end, "X%08X,", list->aexpr_list[i]->len);
end += 10;
count += 10;
end = mem2hex (list->aexpr_list[i]->buf,
end, list->aexpr_list[i]->len);
count += 2 * list->aexpr_list[i]->len;
}
if (count != 0)
{
(*str_list)[ndx] = savestring (temp_buf, count);
ndx++;
count = 0;
end = temp_buf;
}
(*str_list)[ndx] = NULL;
if (ndx == 0)
return NULL;
else
return *str_list;
}
static void
free_actions_list_cleanup_wrapper (void *al)
{
free_actions_list (al);
}
static void
free_actions_list (char **actions_list)
{
int ndx;
if (actions_list == 0)
return;
for (ndx = 0; actions_list[ndx]; ndx++)
xfree (actions_list[ndx]);
xfree (actions_list);
}
static void
encode_actions (struct tracepoint *t, char ***tdp_actions,
char ***stepping_actions)
{
static char tdp_buff[2048], step_buff[2048];
char *action_exp;
struct expression *exp = NULL;
struct action_line *action;
int i;
struct value *tempval;
struct collection_list *collect;
struct cmd_list_element *cmd;
struct agent_expr *aexpr;
int frame_reg;
LONGEST frame_offset;
clear_collection_list (&tracepoint_list);
clear_collection_list (&stepping_list);
collect = &tracepoint_list;
*tdp_actions = NULL;
*stepping_actions = NULL;
TARGET_VIRTUAL_FRAME_POINTER (t->address, &frame_reg, &frame_offset);
for (action = t->actions; action; action = action->next)
{
QUIT;
action_exp = action->action;
while (isspace ((int) *action_exp))
action_exp++;
if (*action_exp == '#')
return;
cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1);
if (cmd == 0)
error (_("Bad action list item: %s"), action_exp);
if (cmd_cfunc_eq (cmd, collect_pseudocommand))
{
do
{
QUIT;
while (isspace ((int) *action_exp))
action_exp++;
if (0 == strncasecmp ("$reg", action_exp, 4))
{
for (i = 0; i < NUM_REGS; i++)
add_register (collect, i);
action_exp = strchr (action_exp, ',');
}
else if (0 == strncasecmp ("$arg", action_exp, 4))
{
add_local_symbols (collect,
t->address,
frame_reg,
frame_offset,
'A');
action_exp = strchr (action_exp, ',');
}
else if (0 == strncasecmp ("$loc", action_exp, 4))
{
add_local_symbols (collect,
t->address,
frame_reg,
frame_offset,
'L');
action_exp = strchr (action_exp, ',');
}
else
{
unsigned long addr, len;
struct cleanup *old_chain = NULL;
struct cleanup *old_chain1 = NULL;
struct agent_reqs areqs;
exp = parse_exp_1 (&action_exp,
block_for_pc (t->address), 1);
old_chain = make_cleanup (free_current_contents, &exp);
switch (exp->elts[0].opcode)
{
case OP_REGISTER:
i = exp->elts[1].longconst;
if (info_verbose)
printf_filtered ("OP_REGISTER: ");
add_register (collect, i);
break;
case UNOP_MEMVAL:
tempval = evaluate_expression (exp);
addr = VALUE_ADDRESS (tempval) + value_offset (tempval);
len = TYPE_LENGTH (check_typedef (exp->elts[1].type));
add_memrange (collect, -1, addr, len);
break;
case OP_VAR_VALUE:
collect_symbol (collect,
exp->elts[2].symbol,
frame_reg,
frame_offset);
break;
default:
aexpr = gen_trace_for_expr (t->address, exp);
old_chain1 = make_cleanup_free_agent_expr (aexpr);
ax_reqs (aexpr, &areqs);
if (areqs.flaw != agent_flaw_none)
error (_("malformed expression"));
if (areqs.min_height < 0)
error (_("gdb: Internal error: expression has min height < 0"));
if (areqs.max_height > 20)
error (_("expression too complicated, try simplifying"));
discard_cleanups (old_chain1);
add_aexpr (collect, aexpr);
if (areqs.reg_mask_len > 0)
{
int ndx1;
int ndx2;
for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++)
{
QUIT;
if (areqs.reg_mask[ndx1] != 0)
{
for (ndx2 = 0; ndx2 < 8; ndx2++)
if (areqs.reg_mask[ndx1] & (1 << ndx2))
add_register (collect,
ndx1 * 8 + ndx2);
}
}
}
break;
}
do_cleanups (old_chain);
}
}
while (action_exp && *action_exp++ == ',');
}
else if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand))
{
collect = &stepping_list;
}
else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand))
{
if (collect == &stepping_list)
collect = &tracepoint_list;
else
break;
}
}
memrange_sortmerge (&tracepoint_list);
memrange_sortmerge (&stepping_list);
*tdp_actions = stringify_collection_list (&tracepoint_list,
tdp_buff);
*stepping_actions = stringify_collection_list (&stepping_list,
step_buff);
}
static void
add_aexpr (struct collection_list *collect, struct agent_expr *aexpr)
{
if (collect->next_aexpr_elt >= collect->aexpr_listsize)
{
collect->aexpr_list =
xrealloc (collect->aexpr_list,
2 * collect->aexpr_listsize * sizeof (struct agent_expr *));
collect->aexpr_listsize *= 2;
}
collect->aexpr_list[collect->next_aexpr_elt] = aexpr;
collect->next_aexpr_elt++;
}
static char target_buf[2048];
static void
remote_set_transparent_ranges (void)
{
extern bfd *exec_bfd;
asection *s;
bfd_size_type size;
bfd_vma lma;
int anysecs = 0;
if (!exec_bfd)
return;
strcpy (target_buf, "QTro");
for (s = exec_bfd->sections; s; s = s->next)
{
char tmp1[40], tmp2[40];
if ((s->flags & SEC_LOAD) == 0 ||
(s->flags & SEC_READONLY) == 0)
continue;
anysecs = 1;
lma = s->lma;
size = bfd_get_section_size (s);
sprintf_vma (tmp1, lma);
sprintf_vma (tmp2, lma + size);
sprintf (target_buf + strlen (target_buf),
":%s,%s", tmp1, tmp2);
}
if (anysecs)
{
putpkt (target_buf);
getpkt (target_buf, sizeof (target_buf), 0);
}
}
static void
trace_start_command (char *args, int from_tty)
{
struct tracepoint *t;
char buf[2048];
char **tdp_actions;
char **stepping_actions;
int ndx;
struct cleanup *old_chain = NULL;
dont_repeat ();
if (target_is_remote ())
{
putpkt ("QTinit");
remote_get_noisy_reply (target_buf, sizeof (target_buf));
if (strcmp (target_buf, "OK"))
error (_("Target does not support this command."));
ALL_TRACEPOINTS (t)
{
char tmp[40];
sprintf_vma (tmp, t->address);
sprintf (buf, "QTDP:%x:%s:%c:%lx:%x", t->number,
tmp,
t->enabled_p ? 'E' : 'D',
t->step_count, t->pass_count);
if (t->actions)
strcat (buf, "-");
putpkt (buf);
remote_get_noisy_reply (target_buf, sizeof (target_buf));
if (strcmp (target_buf, "OK"))
error (_("Target does not support tracepoints."));
if (t->actions)
{
encode_actions (t, &tdp_actions, &stepping_actions);
old_chain = make_cleanup (free_actions_list_cleanup_wrapper,
tdp_actions);
(void) make_cleanup (free_actions_list_cleanup_wrapper,
stepping_actions);
if (tdp_actions)
{
for (ndx = 0; tdp_actions[ndx]; ndx++)
{
QUIT;
sprintf (buf, "QTDP:-%x:%s:%s%c",
t->number, tmp,
tdp_actions[ndx],
((tdp_actions[ndx + 1] || stepping_actions)
? '-' : 0));
putpkt (buf);
remote_get_noisy_reply (target_buf,
sizeof (target_buf));
if (strcmp (target_buf, "OK"))
error (_("Error on target while setting tracepoints."));
}
}
if (stepping_actions)
{
for (ndx = 0; stepping_actions[ndx]; ndx++)
{
QUIT;
sprintf (buf, "QTDP:-%x:%s:%s%s%s",
t->number, tmp,
((ndx == 0) ? "S" : ""),
stepping_actions[ndx],
(stepping_actions[ndx + 1] ? "-" : ""));
putpkt (buf);
remote_get_noisy_reply (target_buf,
sizeof (target_buf));
if (strcmp (target_buf, "OK"))
error (_("Error on target while setting tracepoints."));
}
}
do_cleanups (old_chain);
}
}
remote_set_transparent_ranges ();
putpkt ("QTStart");
remote_get_noisy_reply (target_buf, sizeof (target_buf));
if (strcmp (target_buf, "OK"))
error (_("Bogus reply from target: %s"), target_buf);
set_traceframe_num (-1);
set_tracepoint_num (-1);
set_traceframe_context (-1);
trace_running_p = 1;
if (deprecated_trace_start_stop_hook)
deprecated_trace_start_stop_hook (1, from_tty);
}
else
error (_("Trace can only be run on remote targets."));
}
static void
trace_stop_command (char *args, int from_tty)
{
if (target_is_remote ())
{
putpkt ("QTStop");
remote_get_noisy_reply (target_buf, sizeof (target_buf));
if (strcmp (target_buf, "OK"))
error (_("Bogus reply from target: %s"), target_buf);
trace_running_p = 0;
if (deprecated_trace_start_stop_hook)
deprecated_trace_start_stop_hook (0, from_tty);
}
else
error (_("Trace can only be run on remote targets."));
}
unsigned long trace_running_p;
static void
trace_status_command (char *args, int from_tty)
{
if (target_is_remote ())
{
putpkt ("qTStatus");
remote_get_noisy_reply (target_buf, sizeof (target_buf));
if (target_buf[0] != 'T' ||
(target_buf[1] != '0' && target_buf[1] != '1'))
error (_("Bogus reply from target: %s"), target_buf);
trace_running_p = (target_buf[1] == '1');
}
else
error (_("Trace can only be run on remote targets."));
}
static void
finish_tfind_command (char *msg,
long sizeof_msg,
int from_tty)
{
int target_frameno = -1, target_tracept = -1;
CORE_ADDR old_frame_addr;
struct symbol *old_func;
char *reply;
old_frame_addr = get_frame_base (get_current_frame ());
old_func = find_pc_function (read_pc ());
putpkt (msg);
reply = remote_get_noisy_reply (msg, sizeof_msg);
while (reply && *reply)
switch (*reply)
{
case 'F':
if ((target_frameno = (int) strtol (++reply, &reply, 16)) == -1)
{
if (from_tty)
error (_("Target failed to find requested trace frame."));
else
{
if (info_verbose)
printf_filtered ("End of trace buffer.\n");
trace_find_command ("-1", from_tty);
reply = NULL;
}
}
break;
case 'T':
if ((target_tracept = (int) strtol (++reply, &reply, 16)) == -1)
error (_("Target failed to find requested trace frame."));
break;
case 'O':
if (reply[1] == 'K' && reply[2] == '\0')
reply += 2;
else
error (_("Bogus reply from target: %s"), reply);
break;
default:
error (_("Bogus reply from target: %s"), reply);
}
flush_cached_frames ();
registers_changed ();
select_frame (get_current_frame ());
set_traceframe_num (target_frameno);
set_tracepoint_num (target_tracept);
if (target_frameno == -1)
set_traceframe_context (-1);
else
set_traceframe_context (read_pc ());
if (from_tty)
{
enum print_what print_what;
if (old_func == find_pc_function (read_pc ()) &&
(old_frame_addr == 0 ||
get_frame_base (get_current_frame ()) == 0 ||
old_frame_addr == get_frame_base (get_current_frame ())))
print_what = SRC_LINE;
else
print_what = SRC_AND_LOC;
print_stack_frame (get_selected_frame (NULL), 1, print_what);
do_displays ();
}
}
static void
trace_find_command (char *args, int from_tty)
{
int frameno = -1;
if (target_is_remote ())
{
if (deprecated_trace_find_hook)
deprecated_trace_find_hook (args, from_tty);
if (args == 0 || *args == 0)
{
if (traceframe_number == -1)
frameno = 0;
else
frameno = traceframe_number + 1;
}
else if (0 == strcmp (args, "-"))
{
if (traceframe_number == -1)
error (_("not debugging trace buffer"));
else if (from_tty && traceframe_number == 0)
error (_("already at start of trace buffer"));
frameno = traceframe_number - 1;
}
else
frameno = parse_and_eval_long (args);
if (frameno < -1)
error (_("invalid input (%d is less than zero)"), frameno);
sprintf (target_buf, "QTFrame:%x", frameno);
finish_tfind_command (target_buf, sizeof (target_buf), from_tty);
}
else
error (_("Trace can only be run on remote targets."));
}
static void
trace_find_end_command (char *args, int from_tty)
{
trace_find_command ("-1", from_tty);
}
static void
trace_find_none_command (char *args, int from_tty)
{
trace_find_command ("-1", from_tty);
}
static void
trace_find_start_command (char *args, int from_tty)
{
trace_find_command ("0", from_tty);
}
static void
trace_find_pc_command (char *args, int from_tty)
{
CORE_ADDR pc;
char tmp[40];
if (target_is_remote ())
{
if (args == 0 || *args == 0)
pc = read_pc ();
else
pc = parse_and_eval_address (args);
sprintf_vma (tmp, pc);
sprintf (target_buf, "QTFrame:pc:%s", tmp);
finish_tfind_command (target_buf, sizeof (target_buf), from_tty);
}
else
error (_("Trace can only be run on remote targets."));
}
static void
trace_find_tracepoint_command (char *args, int from_tty)
{
int tdp;
if (target_is_remote ())
{
if (args == 0 || *args == 0)
{
if (tracepoint_number == -1)
error (_("No current tracepoint -- please supply an argument."));
else
tdp = tracepoint_number;
}
else
tdp = parse_and_eval_long (args);
sprintf (target_buf, "QTFrame:tdp:%x", tdp);
finish_tfind_command (target_buf, sizeof (target_buf), from_tty);
}
else
error (_("Trace can only be run on remote targets."));
}
static void
trace_find_line_command (char *args, int from_tty)
{
static CORE_ADDR start_pc, end_pc;
struct symtabs_and_lines sals;
struct symtab_and_line sal;
struct cleanup *old_chain;
char startpc_str[40], endpc_str[40];
if (target_is_remote ())
{
if (args == 0 || *args == 0)
{
sal = find_pc_line (get_frame_pc (get_current_frame ()), 0);
sals.nelts = 1;
sals.sals = (struct symtab_and_line *)
xmalloc (sizeof (struct symtab_and_line));
sals.sals[0] = sal;
}
else
{
sals = decode_line_spec (args, 1);
sal = sals.sals[0];
}
old_chain = make_cleanup (xfree, sals.sals);
if (sal.symtab == 0)
{
printf_filtered ("TFIND: No line number information available");
if (sal.pc != 0)
{
printf_filtered (" for address ");
wrap_here (" ");
print_address (sal.pc, gdb_stdout);
printf_filtered (";\n -- will attempt to find by PC. \n");
}
else
{
printf_filtered (".\n");
return;
}
}
else if (sal.line > 0
&& find_line_pc_range (sal, &start_pc, &end_pc))
{
if (start_pc == end_pc)
{
printf_filtered ("Line %d of \"%s\"",
sal.line, sal.symtab->filename);
wrap_here (" ");
printf_filtered (" is at address ");
print_address (start_pc, gdb_stdout);
wrap_here (" ");
printf_filtered (" but contains no code.\n");
sal = find_pc_line (start_pc, 0);
if (sal.line > 0 &&
find_line_pc_range (sal, &start_pc, &end_pc) &&
start_pc != end_pc)
printf_filtered ("Attempting to find line %d instead.\n",
sal.line);
else
error (_("Cannot find a good line."));
}
}
else
error (_("Line number %d is out of range for \"%s\"."),
sal.line, sal.symtab->filename);
sprintf_vma (startpc_str, start_pc);
sprintf_vma (endpc_str, end_pc - 1);
if (args && *args)
sprintf (target_buf, "QTFrame:range:%s:%s",
startpc_str, endpc_str);
else
sprintf (target_buf, "QTFrame:outside:%s:%s",
startpc_str, endpc_str);
finish_tfind_command (target_buf, sizeof (target_buf),
from_tty);
do_cleanups (old_chain);
}
else
error (_("Trace can only be run on remote targets."));
}
static void
trace_find_range_command (char *args, int from_tty)
{
static CORE_ADDR start, stop;
char start_str[40], stop_str[40];
char *tmp;
if (target_is_remote ())
{
if (args == 0 || *args == 0)
{
printf_filtered ("Usage: tfind range <startaddr>,<endaddr>\n");
return;
}
if (0 != (tmp = strchr (args, ',')))
{
*tmp++ = '\0';
while (isspace ((int) *tmp))
tmp++;
start = parse_and_eval_address (args);
stop = parse_and_eval_address (tmp);
}
else
{
start = parse_and_eval_address (args);
stop = start + 1;
}
sprintf_vma (start_str, start);
sprintf_vma (stop_str, stop);
sprintf (target_buf, "QTFrame:range:%s:%s", start_str, stop_str);
finish_tfind_command (target_buf, sizeof (target_buf), from_tty);
}
else
error (_("Trace can only be run on remote targets."));
}
static void
trace_find_outside_command (char *args, int from_tty)
{
CORE_ADDR start, stop;
char start_str[40], stop_str[40];
char *tmp;
if (target_is_remote ())
{
if (args == 0 || *args == 0)
{
printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
return;
}
if (0 != (tmp = strchr (args, ',')))
{
*tmp++ = '\0';
while (isspace ((int) *tmp))
tmp++;
start = parse_and_eval_address (args);
stop = parse_and_eval_address (tmp);
}
else
{
start = parse_and_eval_address (args);
stop = start + 1;
}
sprintf_vma (start_str, start);
sprintf_vma (stop_str, stop);
sprintf (target_buf, "QTFrame:outside:%s:%s", start_str, stop_str);
finish_tfind_command (target_buf, sizeof (target_buf), from_tty);
}
else
error (_("Trace can only be run on remote targets."));
}
static void
tracepoint_save_command (char *args, int from_tty)
{
struct tracepoint *tp;
struct action_line *line;
FILE *fp;
char *i1 = " ", *i2 = " ";
char *indent, *actionline, *pathname;
char tmp[40];
if (args == 0 || *args == 0)
error (_("Argument required (file name in which to save tracepoints"));
if (tracepoint_chain == 0)
{
warning (_("save-tracepoints: no tracepoints to save."));
return;
}
pathname = tilde_expand (args);
if (!(fp = fopen (pathname, "w")))
error (_("Unable to open file '%s' for saving tracepoints (%s)"),
args, safe_strerror (errno));
xfree (pathname);
ALL_TRACEPOINTS (tp)
{
if (tp->addr_string)
fprintf (fp, "trace %s\n", tp->addr_string);
else
{
sprintf_vma (tmp, tp->address);
fprintf (fp, "trace *0x%s\n", tmp);
}
if (tp->pass_count)
fprintf (fp, " passcount %d\n", tp->pass_count);
if (tp->actions)
{
fprintf (fp, " actions\n");
indent = i1;
for (line = tp->actions; line; line = line->next)
{
struct cmd_list_element *cmd;
QUIT;
actionline = line->action;
while (isspace ((int) *actionline))
actionline++;
fprintf (fp, "%s%s\n", indent, actionline);
if (*actionline != '#')
{
cmd = lookup_cmd (&actionline, cmdlist, "", -1, 1);
if (cmd == 0)
error (_("Bad action list item: %s"), actionline);
if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand))
indent = i2;
else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand))
indent = i1;
}
}
}
}
fclose (fp);
if (from_tty)
printf_filtered ("Tracepoints saved to file '%s'.\n", args);
return;
}
static void
scope_info (char *args, int from_tty)
{
struct symtabs_and_lines sals;
struct symbol *sym;
struct minimal_symbol *msym;
struct block *block;
char **canonical, *symname, *save_args = args;
struct dict_iterator iter;
int j, count = 0;
if (args == 0 || *args == 0)
error (_("requires an argument (function, line or *addr) to define a scope"));
sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL);
if (sals.nelts == 0)
return;
resolve_sal_pc (&sals.sals[0]);
block = block_for_pc (sals.sals[0].pc);
while (block != 0)
{
QUIT;
ALL_BLOCK_SYMBOLS (block, iter, sym)
{
QUIT;
if (count == 0)
printf_filtered ("Scope for %s:\n", save_args);
count++;
symname = DEPRECATED_SYMBOL_NAME (sym);
if (symname == NULL || *symname == '\0')
continue;
printf_filtered ("Symbol %s is ", symname);
switch (SYMBOL_CLASS (sym))
{
default:
case LOC_UNDEF:
printf_filtered ("a bogus symbol, class %d.\n",
SYMBOL_CLASS (sym));
count--;
continue;
case LOC_CONST:
printf_filtered ("a constant with value %ld (0x%lx)",
SYMBOL_VALUE (sym), SYMBOL_VALUE (sym));
break;
case LOC_CONST_BYTES:
printf_filtered ("constant bytes: ");
if (SYMBOL_TYPE (sym))
for (j = 0; j < TYPE_LENGTH (SYMBOL_TYPE (sym)); j++)
fprintf_filtered (gdb_stdout, " %02x",
(unsigned) SYMBOL_VALUE_BYTES (sym)[j]);
break;
case LOC_STATIC:
printf_filtered ("in static storage at address ");
deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym),
1, gdb_stdout);
break;
case LOC_REGISTER:
printf_filtered ("a local variable in register $%s",
REGISTER_NAME (SYMBOL_VALUE (sym)));
break;
case LOC_ARG:
case LOC_LOCAL_ARG:
printf_filtered ("an argument at stack/frame offset %ld",
SYMBOL_VALUE (sym));
break;
case LOC_LOCAL:
printf_filtered ("a local variable at frame offset %ld",
SYMBOL_VALUE (sym));
break;
case LOC_REF_ARG:
printf_filtered ("a reference argument at offset %ld",
SYMBOL_VALUE (sym));
break;
case LOC_REGPARM:
printf_filtered ("an argument in register $%s",
REGISTER_NAME (SYMBOL_VALUE (sym)));
break;
case LOC_REGPARM_ADDR:
printf_filtered ("the address of an argument, in register $%s",
REGISTER_NAME (SYMBOL_VALUE (sym)));
break;
case LOC_TYPEDEF:
printf_filtered ("a typedef.\n");
continue;
case LOC_LABEL:
printf_filtered ("a label at address ");
deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym),
1, gdb_stdout);
break;
case LOC_BLOCK:
printf_filtered ("a function at address ");
deprecated_print_address_numeric (BLOCK_START (SYMBOL_BLOCK_VALUE (sym)),
1, gdb_stdout);
break;
case LOC_BASEREG:
printf_filtered ("a variable at offset %ld from register $%s",
SYMBOL_VALUE (sym),
REGISTER_NAME (SYMBOL_BASEREG (sym)));
break;
case LOC_BASEREG_ARG:
printf_filtered ("an argument at offset %ld from register $%s",
SYMBOL_VALUE (sym),
REGISTER_NAME (SYMBOL_BASEREG (sym)));
break;
case LOC_UNRESOLVED:
msym = lookup_minimal_symbol (DEPRECATED_SYMBOL_NAME (sym),
NULL, NULL);
if (msym == NULL)
printf_filtered ("Unresolved Static");
else
{
printf_filtered ("static storage at address ");
deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (msym), 1,
gdb_stdout);
}
break;
case LOC_OPTIMIZED_OUT:
printf_filtered ("optimized out.\n");
continue;
case LOC_HP_THREAD_LOCAL_STATIC:
printf_filtered ("HP thread local static ");
break;
case LOC_INDIRECT:
printf_filtered ("extern (local indirect) at address ");
deprecated_print_address_numeric (SYMBOL_VALUE_ADDRESS (sym),
1, gdb_stdout);
break;
case LOC_COMPUTED:
case LOC_COMPUTED_ARG:
SYMBOL_OPS (sym)->describe_location (sym, gdb_stdout);
break;
}
if (SYMBOL_TYPE (sym))
printf_filtered (", length %d.\n",
TYPE_LENGTH (check_typedef (SYMBOL_TYPE (sym))));
}
if (BLOCK_FUNCTION (block))
break;
else
block = BLOCK_SUPERBLOCK (block);
}
if (count <= 0)
printf_filtered ("Scope for %s contains no locals or arguments.\n",
save_args);
}
static void
replace_comma (void *data)
{
char *comma = data;
*comma = ',';
}
static void
trace_dump_command (char *args, int from_tty)
{
struct tracepoint *t;
struct action_line *action;
char *action_exp, *next_comma;
struct cleanup *old_cleanups;
int stepping_actions = 0;
int stepping_frame = 0;
if (!target_is_remote ())
{
error (_("Trace can only be run on remote targets."));
return;
}
if (tracepoint_number == -1)
{
warning (_("No current trace frame."));
return;
}
ALL_TRACEPOINTS (t)
if (t->number == tracepoint_number)
break;
if (t == NULL)
error (_("No known tracepoint matches 'current' tracepoint #%d."),
tracepoint_number);
old_cleanups = make_cleanup (null_cleanup, NULL);
printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
tracepoint_number, traceframe_number);
stepping_frame = (t->address != (read_pc () - DECR_PC_AFTER_BREAK));
for (action = t->actions; action; action = action->next)
{
struct cmd_list_element *cmd;
QUIT;
action_exp = action->action;
while (isspace ((int) *action_exp))
action_exp++;
if (*action_exp == '#')
continue;
cmd = lookup_cmd (&action_exp, cmdlist, "", -1, 1);
if (cmd == 0)
error (_("Bad action list item: %s"), action_exp);
if (cmd_cfunc_eq (cmd, while_stepping_pseudocommand))
stepping_actions = 1;
else if (cmd_cfunc_eq (cmd, end_actions_pseudocommand))
stepping_actions = 0;
else if (cmd_cfunc_eq (cmd, collect_pseudocommand))
{
if (stepping_frame == stepping_actions)
{
do
{
QUIT;
if (*action_exp == ',')
action_exp++;
while (isspace ((int) *action_exp))
action_exp++;
next_comma = strchr (action_exp, ',');
if (0 == strncasecmp (action_exp, "$reg", 4))
registers_info (NULL, from_tty);
else if (0 == strncasecmp (action_exp, "$loc", 4))
locals_info (NULL, from_tty);
else if (0 == strncasecmp (action_exp, "$arg", 4))
args_info (NULL, from_tty);
else
{
if (next_comma)
{
make_cleanup (replace_comma, next_comma);
*next_comma = '\0';
}
printf_filtered ("%s = ", action_exp);
output_command (action_exp, from_tty);
printf_filtered ("\n");
}
if (next_comma)
*next_comma = ',';
action_exp = next_comma;
}
while (action_exp && *action_exp == ',');
}
}
}
discard_cleanups (old_cleanups);
}
static const char hexchars[] = "0123456789abcdef";
static char *
mem2hex (gdb_byte *mem, char *buf, int count)
{
gdb_byte ch;
while (count-- > 0)
{
ch = *mem++;
*buf++ = hexchars[ch >> 4];
*buf++ = hexchars[ch & 0xf];
}
*buf = 0;
return buf;
}
int
get_traceframe_number (void)
{
return traceframe_number;
}
void
_initialize_tracepoint (void)
{
struct cmd_list_element *c;
tracepoint_chain = 0;
tracepoint_count = 0;
traceframe_number = -1;
tracepoint_number = -1;
set_internalvar (lookup_internalvar ("tpnum"),
value_from_longest (builtin_type_int, (LONGEST) 0));
set_internalvar (lookup_internalvar ("trace_frame"),
value_from_longest (builtin_type_int, (LONGEST) - 1));
if (tracepoint_list.list == NULL)
{
tracepoint_list.listsize = 128;
tracepoint_list.list = xmalloc
(tracepoint_list.listsize * sizeof (struct memrange));
}
if (tracepoint_list.aexpr_list == NULL)
{
tracepoint_list.aexpr_listsize = 128;
tracepoint_list.aexpr_list = xmalloc
(tracepoint_list.aexpr_listsize * sizeof (struct agent_expr *));
}
if (stepping_list.list == NULL)
{
stepping_list.listsize = 128;
stepping_list.list = xmalloc
(stepping_list.listsize * sizeof (struct memrange));
}
if (stepping_list.aexpr_list == NULL)
{
stepping_list.aexpr_listsize = 128;
stepping_list.aexpr_list = xmalloc
(stepping_list.aexpr_listsize * sizeof (struct agent_expr *));
}
add_info ("scope", scope_info,
_("List the variables local to a scope"));
add_cmd ("tracepoints", class_trace, NULL,
_("Tracing of program execution without stopping the program."),
&cmdlist);
add_info ("tracepoints", tracepoints_info, _("\
Status of tracepoints, or tracepoint number NUMBER.\n\
Convenience variable \"$tpnum\" contains the number of the\n\
last tracepoint set."));
add_info_alias ("tp", "tracepoints", 1);
c = add_com ("save-tracepoints", class_trace, tracepoint_save_command, _("\
Save current tracepoint definitions as a script.\n\
Use the 'source' command in another debug session to restore them."));
set_cmd_completer (c, filename_completer);
add_com ("tdump", class_trace, trace_dump_command,
_("Print everything collected at the current tracepoint."));
add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\
Select a trace frame;\n\
No argument means forward by one frame; '-' means backward by one frame."),
&tfindlist, "tfind ", 1, &cmdlist);
add_cmd ("outside", class_trace, trace_find_outside_command, _("\
Select a trace frame whose PC is outside the given range.\n\
Usage: tfind outside addr1, addr2"),
&tfindlist);
add_cmd ("range", class_trace, trace_find_range_command, _("\
Select a trace frame whose PC is in the given range.\n\
Usage: tfind range addr1,addr2"),
&tfindlist);
add_cmd ("line", class_trace, trace_find_line_command, _("\
Select a trace frame by source line.\n\
Argument can be a line number (with optional source file), \n\
a function name, or '*' followed by an address.\n\
Default argument is 'the next source line that was traced'."),
&tfindlist);
add_cmd ("tracepoint", class_trace, trace_find_tracepoint_command, _("\
Select a trace frame by tracepoint number.\n\
Default is the tracepoint for the current trace frame."),
&tfindlist);
add_cmd ("pc", class_trace, trace_find_pc_command, _("\
Select a trace frame by PC.\n\
Default is the current PC, or the PC of the current trace frame."),
&tfindlist);
add_cmd ("end", class_trace, trace_find_end_command, _("\
Synonym for 'none'.\n\
De-select any trace frame and resume 'live' debugging."),
&tfindlist);
add_cmd ("none", class_trace, trace_find_none_command,
_("De-select any trace frame and resume 'live' debugging."),
&tfindlist);
add_cmd ("start", class_trace, trace_find_start_command,
_("Select the first trace frame in the trace buffer."),
&tfindlist);
add_com ("tstatus", class_trace, trace_status_command,
_("Display the status of the current trace data collection."));
add_com ("tstop", class_trace, trace_stop_command,
_("Stop trace data collection."));
add_com ("tstart", class_trace, trace_start_command,
_("Start trace data collection."));
add_com ("passcount", class_trace, trace_pass_command, _("\
Set the passcount for a tracepoint.\n\
The trace will end when the tracepoint has been passed 'count' times.\n\
Usage: passcount COUNT TPNUM, where TPNUM may also be \"all\";\n\
if TPNUM is omitted, passcount refers to the last tracepoint defined."));
add_com ("end", class_trace, end_actions_pseudocommand, _("\
Ends a list of commands or actions.\n\
Several GDB commands allow you to enter a list of commands or actions.\n\
Entering \"end\" on a line by itself is the normal way to terminate\n\
such a list.\n\n\
Note: the \"end\" command cannot be used at the gdb prompt."));
add_com ("while-stepping", class_trace, while_stepping_pseudocommand, _("\
Specify single-stepping behavior at a tracepoint.\n\
Argument is number of instructions to trace in single-step mode\n\
following the tracepoint. This command is normally followed by\n\
one or more \"collect\" commands, to specify what to collect\n\
while single-stepping.\n\n\
Note: this command can only be used in a tracepoint \"actions\" list."));
add_com_alias ("ws", "while-stepping", class_alias, 0);
add_com_alias ("stepping", "while-stepping", class_alias, 0);
add_com ("collect", class_trace, collect_pseudocommand, _("\
Specify one or more data items to be collected at a tracepoint.\n\
Accepts a comma-separated list of (one or more) expressions. GDB will\n\
collect all data (variables, registers) referenced by that expression.\n\
Also accepts the following special arguments:\n\
$regs -- all registers.\n\
$args -- all function arguments.\n\
$locals -- all variables local to the block/function scope.\n\
Note: this command can only be used in a tracepoint \"actions\" list."));
add_com ("actions", class_trace, trace_actions_command, _("\
Specify the actions to be taken at a tracepoint.\n\
Tracepoint actions may include collecting of specified data, \n\
single-stepping, or enabling/disabling other tracepoints, \n\
depending on target's capabilities."));
add_cmd ("tracepoints", class_trace, delete_trace_command, _("\
Delete specified tracepoints.\n\
Arguments are tracepoint numbers, separated by spaces.\n\
No argument means delete all tracepoints."),
&deletelist);
add_cmd ("tracepoints", class_trace, disable_trace_command, _("\
Disable specified tracepoints.\n\
Arguments are tracepoint numbers, separated by spaces.\n\
No argument means disable all tracepoints."),
&disablelist);
add_cmd ("tracepoints", class_trace, enable_trace_command, _("\
Enable specified tracepoints.\n\
Arguments are tracepoint numbers, separated by spaces.\n\
No argument means enable all tracepoints."),
&enablelist);
c = add_com ("trace", class_trace, trace_command, _("\
Set a tracepoint at a specified line or function or address.\n\
Argument may be a line number, function name, or '*' plus an address.\n\
For a line number or function, trace at the start of its code.\n\
If an address is specified, trace at that exact address.\n\n\
Do \"help tracepoints\" for info on other tracepoint commands."));
set_cmd_completer (c, location_completer);
add_com_alias ("tp", "trace", class_alias, 0);
add_com_alias ("tr", "trace", class_alias, 1);
add_com_alias ("tra", "trace", class_alias, 1);
add_com_alias ("trac", "trace", class_alias, 1);
}