/* Tracing functionality for remote targets in custom GDB protocol
Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
- 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
+ 2007, 2008, 2009, 2010, 2011 Free Software Foundation, Inc.
This file is part of GDB.
#include "objfiles.h"
#include "filenames.h"
#include "gdbthread.h"
-
+#include "stack.h"
+#include "gdbcore.h"
+#include "remote.h"
+#include "source.h"
#include "ax.h"
#include "ax-gdb.h"
+#include "memrange.h"
/* readline include files */
#include "readline/readline.h"
extern int hex2bin (const char *hex, gdb_byte *bin, int count);
extern int bin2hex (const gdb_byte *bin, char *hex, int count);
-extern void stop_tracing ();
-
/* Maximum length of an agent aexpression.
This accounts for the fact that packets are limited to 400 bytes
(which includes everything -- including the checksum), and assumes
typedef struct trace_state_variable tsv_s;
DEF_VEC_O(tsv_s);
+/* An object describing the contents of a traceframe. */
+
+struct traceframe_info
+{
+ /* Collected memory. */
+ VEC(mem_range_s) *memory;
+};
+
static VEC(tsv_s) *tvariables;
/* The next integer to assign to a variable. */
/* Tracepoint for last traceframe collected. */
static int tracepoint_number;
-/* Symbol for function for last traceframe collected */
+/* Symbol for function for last traceframe collected. */
static struct symbol *traceframe_fun;
-/* Symtab and line for last traceframe collected */
+/* Symtab and line for last traceframe collected. */
static struct symtab_and_line traceframe_sal;
-/* Tracing command lists */
+/* The traceframe info of the current traceframe. NULL if we haven't
+ yet attempted to fetch it, or if the target does not support
+ fetching this object, or if we're not inspecting a traceframe
+ presently. */
+static struct traceframe_info *traceframe_info;
+
+/* Tracing command lists. */
static struct cmd_list_element *tfindlist;
/* List of expressions to collect by default at each tracepoint hit. */
};
struct trace_status *
-current_trace_status ()
+current_trace_status (void)
{
return &trace_status;
}
+/* Destroy INFO. */
+
+static void
+free_traceframe_info (struct traceframe_info *info)
+{
+ if (info != NULL)
+ {
+ VEC_free (mem_range_s, info->memory);
+
+ xfree (info);
+ }
+}
+
+/* Free and clear the traceframe info cache of the current
+ traceframe. */
+
+static void
+clear_traceframe_info (void)
+{
+ free_traceframe_info (traceframe_info);
+ traceframe_info = NULL;
+}
+
/* Set traceframe number to NUM. */
static void
set_traceframe_num (int num)
}
/* Set externally visible debug variables for querying/printing
- the traceframe context (line, function, file) */
+ the traceframe context (line, function, file). */
static void
set_traceframe_context (struct frame_info *trace_frame)
{
CORE_ADDR trace_pc;
- if (trace_frame == NULL) /* Cease debugging any trace buffers. */
+ /* Save as globals for internal use. */
+ if (trace_frame != NULL
+ && get_frame_pc_if_available (trace_frame, &trace_pc))
+ {
+ traceframe_sal = find_pc_line (trace_pc, 0);
+ traceframe_fun = find_pc_function (trace_pc);
+
+ /* Save linenumber as "$trace_line", a debugger variable visible to
+ users. */
+ set_internalvar_integer (lookup_internalvar ("trace_line"),
+ traceframe_sal.line);
+ }
+ else
{
- traceframe_fun = 0;
- traceframe_sal.pc = traceframe_sal.line = 0;
- traceframe_sal.symtab = NULL;
- clear_internalvar (lookup_internalvar ("trace_func"));
- clear_internalvar (lookup_internalvar ("trace_file"));
+ init_sal (&traceframe_sal);
+ traceframe_fun = NULL;
set_internalvar_integer (lookup_internalvar ("trace_line"), -1);
- return;
}
- /* Save as globals for internal use. */
- trace_pc = get_frame_pc (trace_frame);
- traceframe_sal = find_pc_line (trace_pc, 0);
- traceframe_fun = find_pc_function (trace_pc);
-
- /* Save linenumber as "$trace_line", a debugger variable visible to
- users. */
- set_internalvar_integer (lookup_internalvar ("trace_line"),
- traceframe_sal.line);
-
/* Save func name as "$trace_func", a debugger variable visible to
users. */
if (traceframe_fun == NULL
if (tsv)
{
tsv->initial_value = initval;
- printf_filtered (_("Trace state variable $%s now has initial value %s.\n"),
+ printf_filtered (_("Trace state variable $%s "
+ "now has initial value %s.\n"),
tsv->name, plongest (tsv->initial_value));
+ do_cleanups (old_chain);
return;
}
tsv = create_trace_state_variable (internalvar_name (intvar));
tsv->initial_value = initval;
- printf_filtered (_("Trace state variable $%s created, with initial value %s.\n"),
+ printf_filtered (_("Trace state variable $%s "
+ "created, with initial value %s.\n"),
tsv->name, plongest (tsv->initial_value));
do_cleanups (old_chain);
void
delete_trace_variable_command (char *args, int from_tty)
{
- int i, ix;
+ int ix;
char **argv;
struct cleanup *back_to;
- struct trace_state_variable *tsv;
if (args == NULL)
{
argv = gdb_buildargv (args);
back_to = make_cleanup_freeargv (argv);
- for (i = 0; argv[i] != NULL; i++)
+ for (ix = 0; argv[ix] != NULL; ix++)
{
- if (*argv[i] == '$')
- delete_trace_state_variable (argv[i] + 1);
+ if (*argv[ix] == '$')
+ delete_trace_state_variable (argv[ix] + 1);
else
- warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[i]);
+ warning (_("Name \"%s\" not prefixed with '$', ignoring"), argv[ix]);
}
do_cleanups (back_to);
back_to2 = make_cleanup_ui_out_tuple_begin_end (uiout, "variable");
- name = concat ("$", tsv->name, NULL);
+ name = concat ("$", tsv->name, (char *) NULL);
make_cleanup (xfree, name);
ui_out_field_string (uiout, "name", name);
ui_out_field_string (uiout, "initial", plongest (tsv->initial_value));
struct breakpoint *t;
struct command_line *l;
- t = get_tracepoint_by_number (&args, 0, 1);
+ t = get_tracepoint_by_number (&args, NULL, 1);
if (t)
{
char *tmpbuf =
t->number);
struct cleanup *cleanups = make_cleanup (xfree, tmpbuf);
- l = read_command_lines (tmpbuf, from_tty, 1, check_tracepoint_command, t);
+ l = read_command_lines (tmpbuf, from_tty, 1,
+ check_tracepoint_command, t);
do_cleanups (cleanups);
breakpoint_set_commands (t, l);
}
/* else just return */
}
+/* Report the results of checking the agent expression, as errors or
+ internal errors. */
+
+static void
+report_agent_reqs_errors (struct agent_expr *aexpr)
+{
+ /* All of the "flaws" are serious bytecode generation issues that
+ should never occur. */
+ if (aexpr->flaw != agent_flaw_none)
+ internal_error (__FILE__, __LINE__, _("expression is malformed"));
+
+ /* If analysis shows a stack underflow, GDB must have done something
+ badly wrong in its bytecode generation. */
+ if (aexpr->min_height < 0)
+ internal_error (__FILE__, __LINE__,
+ _("expression has min height < 0"));
+
+ /* Issue this error if the stack is predicted to get too deep. The
+ limit is rather arbitrary; a better scheme might be for the
+ target to report how much stack it will have available. The
+ depth roughly corresponds to parenthesization, so a limit of 20
+ amounts to 20 levels of expression nesting, which is actually
+ a pretty big hairy expression. */
+ if (aexpr->max_height > 20)
+ error (_("Expression is too complicated."));
+}
+
/* worker function */
-enum actionline_type
+void
validate_actionline (char **line, struct breakpoint *t)
{
struct cmd_list_element *c;
struct cleanup *old_chain = NULL;
char *p, *tmp_p;
struct bp_location *loc;
+ struct agent_expr *aexpr;
- /* if EOF is typed, *line is NULL */
+ /* If EOF is typed, *line is NULL. */
if (*line == NULL)
- return END;
+ return;
for (p = *line; isspace ((int) *p);)
p++;
/* Symbol lookup etc. */
if (*p == '\0') /* empty line: just prompt for another line. */
- return BADLINE;
+ return;
if (*p == '#') /* comment line */
- return GENERIC;
+ return;
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;
- }
+ error (_("`%s' is not a tracepoint action, or is ambiguous."), p);
if (cmd_cfunc_eq (c, collect_pseudocommand))
{
- struct agent_expr *aexpr;
- struct agent_reqs areqs;
-
do
- { /* repeat over a comma-separated list */
- QUIT; /* allow user to bail out with ^C */
+ { /* Repeat over a comma-separated list. */
+ QUIT; /* Allow user to bail out with ^C. */
while (isspace ((int) *p))
p++;
- if (*p == '$') /* look for special pseudo-symbols */
+ if (*p == '$') /* Look for special pseudo-symbols. */
{
- if ((0 == strncasecmp ("reg", p + 1, 3)) ||
- (0 == strncasecmp ("arg", p + 1, 3)) ||
- (0 == strncasecmp ("loc", p + 1, 3)))
+ if (0 == strncasecmp ("reg", p + 1, 3)
+ || 0 == strncasecmp ("arg", p + 1, 3)
+ || 0 == strncasecmp ("loc", p + 1, 3)
+ || 0 == strncasecmp ("_sdata", p + 1, 6))
{
p = strchr (p, ',');
continue;
{
if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_CONST)
{
- warning (_("constant %s (value %ld) will not be collected."),
- SYMBOL_PRINT_NAME (exp->elts[2].symbol),
- SYMBOL_VALUE (exp->elts[2].symbol));
- return BADLINE;
+ error (_("constant `%s' (value %ld) "
+ "will not be collected."),
+ SYMBOL_PRINT_NAME (exp->elts[2].symbol),
+ SYMBOL_VALUE (exp->elts[2].symbol));
}
- else if (SYMBOL_CLASS (exp->elts[2].symbol) == LOC_OPTIMIZED_OUT)
+ else if (SYMBOL_CLASS (exp->elts[2].symbol)
+ == LOC_OPTIMIZED_OUT)
{
- warning (_("%s is optimized away and cannot be collected."),
- SYMBOL_PRINT_NAME (exp->elts[2].symbol));
- return BADLINE;
+ error (_("`%s' is optimized away "
+ "and cannot be collected."),
+ SYMBOL_PRINT_NAME (exp->elts[2].symbol));
}
}
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);
+ error (_("Expression is too complicated."));
- if (areqs.flaw != agent_flaw_none)
- error (_("malformed expression"));
+ ax_reqs (aexpr);
- 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"));
+ report_agent_reqs_errors (aexpr);
do_cleanups (old_chain);
}
}
while (p && *p++ == ',');
- return GENERIC;
}
+
else if (cmd_cfunc_eq (c, teval_pseudocommand))
{
- struct agent_expr *aexpr;
-
do
- { /* repeat over a comma-separated list */
- QUIT; /* allow user to bail out with ^C */
+ { /* Repeat over a comma-separated list. */
+ QUIT; /* Allow user to bail out with ^C. */
while (isspace ((int) *p))
p++;
make_cleanup_free_agent_expr (aexpr);
if (aexpr->len > MAX_AGENT_EXPR_LEN)
- error (_("expression too complicated, try simplifying"));
+ error (_("Expression is too complicated."));
+
+ ax_reqs (aexpr);
+ report_agent_reqs_errors (aexpr);
do_cleanups (old_chain);
}
}
while (p && *p++ == ',');
- return GENERIC;
}
+
else if (cmd_cfunc_eq (c, while_stepping_pseudocommand))
{
- char *steparg; /* in case warning is necessary */
+ char *steparg; /* In case warning is necessary. */
while (isspace ((int) *p))
p++;
steparg = p;
- if (*p == '\0' ||
- (t->step_count = strtol (p, &p, 0)) == 0)
- {
- error (_("'%s': bad step-count."), *line);
- }
- return STEPPING;
+ if (*p == '\0' || (t->step_count = strtol (p, &p, 0)) == 0)
+ error (_("while-stepping step count `%s' is malformed."), *line);
}
+
else if (cmd_cfunc_eq (c, end_actions_pseudocommand))
- return END;
+ ;
+
else
- {
- error (_("'%s' is not a supported tracepoint action."), *line);
- }
+ error (_("`%s' is not a supported tracepoint action."), *line);
}
enum {
struct memrange
{
int type; /* memrange_absolute for absolute memory range,
- else basereg number */
+ else basereg number. */
bfd_signed_vma start;
bfd_signed_vma end;
};
long next_aexpr_elt;
struct agent_expr **aexpr_list;
+ /* True is the user requested a collection of "$_sdata", "static
+ tracepoint data". */
+ int strace_data;
}
tracepoint_list, stepping_list;
static int memrange_cmp (const void *, const void *);
-/* compare memranges for qsort */
+/* Compare memranges for qsort. */
static int
memrange_cmp (const void *va, const void *vb)
{
{
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 memrange b overlaps or is adjacent to memrange a,
+ merge them. */
+ if (memranges->list[a].type == memranges->list[b].type
+ && memranges->list[b].start <= memranges->list[a].end)
{
- /* memrange b starts before memrange a ends; merge them. */
if (memranges->list[b].end > memranges->list[a].end)
memranges->list[a].end = memranges->list[b].end;
continue; /* next b, same a */
collection->regs_mask[regno / 8] |= 1 << (regno % 8);
}
-/* Add a memrange to a collection list */
+/* Add a memrange to a collection list. */
static void
add_memrange (struct collection_list *memranges,
int type, bfd_signed_vma base,
memranges->listsize);
}
- if (type != memrange_absolute) /* Better collect the base register! */
+ if (type != memrange_absolute) /* Better collect the base register! */
add_register (memranges, type);
}
{
struct agent_expr *aexpr;
struct cleanup *old_chain1 = NULL;
- struct agent_reqs areqs;
aexpr = gen_trace_for_var (scope, gdbarch, sym);
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"));
+ ax_reqs (aexpr);
+
+ report_agent_reqs_errors (aexpr);
discard_cleanups (old_chain1);
add_aexpr (collect, aexpr);
- /* take care of the registers */
- if (areqs.reg_mask_len > 0)
+ /* Take care of the registers. */
+ if (aexpr->reg_mask_len > 0)
{
int ndx1, ndx2;
- for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++)
+ for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
{
- QUIT; /* allow user to bail out with ^C */
- if (areqs.reg_mask[ndx1] != 0)
+ QUIT; /* Allow user to bail out with ^C. */
+ if (aexpr->reg_mask[ndx1] != 0)
{
- /* assume chars have 8 bits */
+ /* Assume chars have 8 bits. */
for (ndx2 = 0; ndx2 < 8; ndx2++)
- if (areqs.reg_mask[ndx1] & (1 << ndx2))
- /* it's used -- record it */
+ if (aexpr->reg_mask[ndx1] & (1 << ndx2))
+ /* It's used -- record it. */
add_register (collect, ndx1 * 8 + ndx2);
}
}
}
}
-/* Add all locals (or args) symbols to collection list */
+/* Data to be passed around in the calls to the locals and args
+ iterators. */
+
+struct add_local_symbols_data
+{
+ struct collection_list *collect;
+ struct gdbarch *gdbarch;
+ CORE_ADDR pc;
+ long frame_regno;
+ long frame_offset;
+ int count;
+};
+
+/* The callback for the locals and args iterators. */
+
+static void
+do_collect_symbol (const char *print_name,
+ struct symbol *sym,
+ void *cb_data)
+{
+ struct add_local_symbols_data *p = cb_data;
+
+ collect_symbol (p->collect, sym, p->gdbarch, p->frame_regno,
+ p->frame_offset, p->pc);
+ p->count++;
+}
+
+/* Add all locals (or args) symbols to collection list. */
static void
add_local_symbols (struct collection_list *collect,
struct gdbarch *gdbarch, CORE_ADDR pc,
long frame_regno, long frame_offset, int type)
{
- struct symbol *sym;
struct block *block;
- struct dict_iterator iter;
- int count = 0;
+ struct add_local_symbols_data cb_data;
- block = block_for_pc (pc);
- while (block != 0)
+ cb_data.collect = collect;
+ cb_data.gdbarch = gdbarch;
+ cb_data.pc = pc;
+ cb_data.frame_regno = frame_regno;
+ cb_data.frame_offset = frame_offset;
+ cb_data.count = 0;
+
+ if (type == 'L')
{
- QUIT; /* allow user to bail out with ^C */
- ALL_BLOCK_SYMBOLS (block, iter, sym)
+ block = block_for_pc (pc);
+ if (block == NULL)
{
- if (SYMBOL_IS_ARGUMENT (sym)
- ? type == 'A' /* collecting Arguments */
- : type == 'L') /* collecting Locals */
- {
- count++;
- collect_symbol (collect, sym, gdbarch,
- frame_regno, frame_offset, pc);
- }
+ warning (_("Can't collect locals; "
+ "no symbol table info available.\n"));
+ return;
}
- if (BLOCK_FUNCTION (block))
- break;
- else
- block = BLOCK_SUPERBLOCK (block);
+
+ iterate_over_block_local_vars (block, do_collect_symbol, &cb_data);
+ if (cb_data.count == 0)
+ warning (_("No locals found in scope."));
+ }
+ else
+ {
+ pc = get_pc_function_start (pc);
+ block = block_for_pc (pc);
+ if (block == NULL)
+ {
+ warning (_("Can't collect args; no symbol table info available."));
+ return;
+ }
+
+ iterate_over_block_arg_vars (block, do_collect_symbol, &cb_data);
+ if (cb_data.count == 0)
+ warning (_("No args found in scope."));
}
- if (count == 0)
- warning (_("No %s found in scope."),
- type == 'L' ? "locals" : "args");
+}
+
+static void
+add_static_trace_data (struct collection_list *collection)
+{
+ if (info_verbose)
+ printf_filtered ("collect static trace data\n");
+ collection->strace_data = 1;
}
/* worker function */
}
list->next_aexpr_elt = 0;
memset (list->regs_mask, 0, sizeof (list->regs_mask));
+ list->strace_data = 0;
}
-/* reduce a collection list to string form (for gdb protocol) */
+/* Reduce a collection list to string form (for gdb protocol). */
static char **
stringify_collection_list (struct collection_list *list, char *string)
{
char *end;
long i;
- count = 1 + list->next_memrange + list->next_aexpr_elt + 1;
+ count = 1 + 1 + list->next_memrange + list->next_aexpr_elt + 1;
str_list = (char *(*)[]) xmalloc (count * sizeof (char *));
+ if (list->strace_data)
+ {
+ if (info_verbose)
+ printf_filtered ("\nCollecting static trace data\n");
+ end = temp_buf;
+ *end++ = 'L';
+ (*str_list)[ndx] = savestring (temp_buf, end - temp_buf);
+ ndx++;
+ }
+
for (i = sizeof (list->regs_mask) - 1; i > 0; i--)
- if (list->regs_mask[i] != 0) /* skip leading zeroes in regs_mask */
+ if (list->regs_mask[i] != 0) /* Skip leading zeroes in regs_mask. */
break;
- if (list->regs_mask[i] != 0) /* prepare to send regs_mask to the stub */
+ if (list->regs_mask[i] != 0) /* Prepare to send regs_mask to the stub. */
{
if (info_verbose)
printf_filtered ("\nCollecting registers (mask): 0x");
*end++ = 'R';
for (; i >= 0; i--)
{
- QUIT; /* allow user to bail out with ^C */
+ QUIT; /* Allow user to bail out with ^C. */
if (info_verbose)
printf_filtered ("%02X", list->regs_mask[i]);
sprintf (end, "%02X", list->regs_mask[i]);
printf_filtered ("Collecting memranges: \n");
for (i = 0, count = 0, end = temp_buf; i < list->next_memrange; i++)
{
- QUIT; /* allow user to bail out with ^C */
+ QUIT; /* Allow user to bail out with ^C. */
sprintf_vma (tmp2, list->list[i].start);
if (info_verbose)
{
for (i = 0; i < list->next_aexpr_elt; i++)
{
- QUIT; /* allow user to bail out with ^C */
+ QUIT; /* Allow user to bail out with ^C. */
if ((count + 10 + 2 * list->aexpr_list[i]->len) > MAX_AGENT_EXPR_LEN)
{
(*str_list)[ndx] = savestring (temp_buf, count);
{
char *action_exp;
struct expression *exp = NULL;
- struct command_line *actions;
int i;
struct value *tempval;
struct cmd_list_element *cmd;
for (; action; action = action->next)
{
- QUIT; /* allow user to bail out with ^C */
+ QUIT; /* Allow user to bail out with ^C. */
action_exp = action->line;
while (isspace ((int) *action_exp))
action_exp++;
if (cmd_cfunc_eq (cmd, collect_pseudocommand))
{
do
- { /* repeat over a comma-separated list */
- QUIT; /* allow user to bail out with ^C */
+ { /* Repeat over a comma-separated list. */
+ QUIT; /* Allow user to bail out with ^C. */
while (isspace ((int) *action_exp))
action_exp++;
'L');
action_exp = strchr (action_exp, ','); /* more? */
}
+ else if (0 == strncasecmp ("$_sdata", action_exp, 7))
+ {
+ add_static_trace_data (collect);
+ action_exp = strchr (action_exp, ','); /* more? */
+ }
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 (tloc->address), 1);
}
case UNOP_MEMVAL:
- /* safe because we know it's a simple expression */
+ /* Safe because we know it's a simple expression. */
tempval = evaluate_expression (exp);
addr = value_address (tempval);
len = TYPE_LENGTH (check_typedef (exp->elts[1].type));
tloc->address);
break;
- default: /* full-fledged expression */
+ default: /* Full-fledged expression. */
aexpr = gen_trace_for_expr (tloc->address, exp);
old_chain1 = make_cleanup_free_agent_expr (aexpr);
- ax_reqs (aexpr, &areqs);
- if (areqs.flaw != agent_flaw_none)
- error (_("malformed expression"));
+ ax_reqs (aexpr);
- 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"));
+ report_agent_reqs_errors (aexpr);
discard_cleanups (old_chain1);
add_aexpr (collect, aexpr);
- /* take care of the registers */
- if (areqs.reg_mask_len > 0)
+ /* Take care of the registers. */
+ if (aexpr->reg_mask_len > 0)
{
int ndx1;
int ndx2;
- for (ndx1 = 0; ndx1 < areqs.reg_mask_len; ndx1++)
+ for (ndx1 = 0; ndx1 < aexpr->reg_mask_len; ndx1++)
{
- QUIT; /* allow user to bail out with ^C */
- if (areqs.reg_mask[ndx1] != 0)
+ QUIT; /* Allow user to bail out with ^C. */
+ if (aexpr->reg_mask[ndx1] != 0)
{
- /* assume chars have 8 bits */
+ /* Assume chars have 8 bits. */
for (ndx2 = 0; ndx2 < 8; ndx2++)
- if (areqs.reg_mask[ndx1] & (1 << ndx2))
- /* it's used -- record it */
+ if (aexpr->reg_mask[ndx1] & (1 << ndx2))
+ /* It's used -- record it. */
add_register (collect,
ndx1 * 8 + ndx2);
}
else if (cmd_cfunc_eq (cmd, teval_pseudocommand))
{
do
- { /* repeat over a comma-separated list */
- QUIT; /* allow user to bail out with ^C */
+ { /* Repeat over a comma-separated list. */
+ QUIT; /* Allow user to bail out with ^C. */
while (isspace ((int) *action_exp))
action_exp++;
{
- 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 (tloc->address), 1);
aexpr = gen_eval_for_expr (tloc->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"));
+ ax_reqs (aexpr);
+ report_agent_reqs_errors (aexpr);
discard_cleanups (old_chain1);
/* Even though we're not officially collecting, add
here. */
gdb_assert (stepping_list);
- encode_actions_1 (action->body_list[0], t, tloc, frame_reg, frame_offset,
- stepping_list, NULL);
+ encode_actions_1 (action->body_list[0], t, tloc, frame_reg,
+ frame_offset, stepping_list, NULL);
}
else
error (_("Invalid tracepoint command '%s'"), action->line);
gdbarch_virtual_frame_pointer (t->gdbarch,
t->loc->address, &frame_reg, &frame_offset);
- actions = t->commands->commands;
+ actions = breakpoint_commands (t);
/* If there are default expressions to collect, make up a collect
action and prepend to the action list to encode. Note that since
if (*default_collect)
{
char *line;
- enum actionline_type linetype;
default_collect_line = xstrprintf ("collect %s", default_collect);
make_cleanup (xfree, default_collect_line);
line = default_collect_line;
- linetype = validate_actionline (&line, t);
- if (linetype != BADLINE)
- {
- default_collect_action = xmalloc (sizeof (struct command_line));
- make_cleanup (xfree, default_collect_action);
- default_collect_action->next = t->commands->commands;
- default_collect_action->line = line;
- actions = default_collect_action;
- }
+ validate_actionline (&line, t);
+
+ default_collect_action = xmalloc (sizeof (struct command_line));
+ make_cleanup (xfree, default_collect_action);
+ default_collect_action->next = actions;
+ default_collect_action->line = line;
+ actions = default_collect_action;
}
encode_actions_1 (actions, t, tloc, frame_reg, frame_offset,
&tracepoint_list, &stepping_list);
{
collect->aexpr_list =
xrealloc (collect->aexpr_list,
- 2 * collect->aexpr_listsize * sizeof (struct agent_expr *));
+ 2 * collect->aexpr_listsize * sizeof (struct agent_expr *));
collect->aexpr_listsize *= 2;
}
collect->aexpr_list[collect->next_aexpr_elt] = aexpr;
void
start_tracing (void)
{
- char buf[2048];
VEC(breakpoint_p) *tp_vec = NULL;
int ix;
struct breakpoint *t;
struct trace_state_variable *tsv;
- int any_enabled = 0;
+ int any_enabled = 0, num_to_download = 0;
tp_vec = all_tracepoints ();
- /* No point in tracing without any tracepoints... */
+ /* No point in tracing without any tracepoints... */
if (VEC_length (breakpoint_p, tp_vec) == 0)
{
VEC_free (breakpoint_p, tp_vec);
for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
{
if (t->enable_state == bp_enabled)
- {
- any_enabled = 1;
- break;
- }
+ any_enabled = 1;
+
+ if ((t->type == bp_fast_tracepoint
+ ? may_insert_fast_tracepoints
+ : may_insert_tracepoints))
+ ++num_to_download;
+ else
+ warning (_("May not insert %stracepoints, skipping tracepoint %d"),
+ (t->type == bp_fast_tracepoint ? "fast " : ""), t->number);
}
/* No point in tracing with only disabled tracepoints. */
error (_("No tracepoints enabled, not starting trace"));
}
+ if (num_to_download <= 0)
+ {
+ VEC_free (breakpoint_p, tp_vec);
+ error (_("No tracepoints that may be downloaded, not starting trace"));
+ }
+
target_trace_init ();
for (ix = 0; VEC_iterate (breakpoint_p, tp_vec, ix, t); ix++)
{
+ if ((t->type == bp_fast_tracepoint
+ ? !may_insert_fast_tracepoints
+ : !may_insert_tracepoints))
+ continue;
+
t->number_on_target = 0;
target_download_tracepoint (t);
t->number_on_target = t->number;
set_tracepoint_num (-1);
set_traceframe_context (NULL);
current_trace_status()->running = 1;
+ clear_traceframe_info ();
}
/* tstart command:
{
dont_repeat (); /* Like "run", dangerous to repeat accidentally. */
+ if (current_trace_status ()->running)
+ {
+ if (from_tty
+ && !query (_("A trace is running already. Start a new run? ")))
+ error (_("New trace run not started."));
+ }
+
start_tracing ();
}
static void
trace_stop_command (char *args, int from_tty)
{
+ if (!current_trace_status ()->running)
+ error (_("Trace is not running."));
+
stop_tracing ();
}
stop_tracing (void)
{
target_trace_stop ();
- /* should change in response to reply? */
+ /* Should change in response to reply? */
current_trace_status ()->running = 0;
}
else if (ts->running)
{
printf_filtered (_("Trace is running on the target.\n"));
- if (disconnected_tracing)
- printf_filtered (_("Trace will continue if GDB disconnects.\n"));
- else
- printf_filtered (_("Trace will stop if GDB disconnects.\n"));
}
else
{
break;
case tracepoint_error:
if (ts->stopping_tracepoint)
- printf_filtered (_("Trace stopped by an error (%s, tracepoint %d).\n"),
+ printf_filtered (_("Trace stopped by an "
+ "error (%s, tracepoint %d).\n"),
ts->error_desc, ts->stopping_tracepoint);
else
printf_filtered (_("Trace stopped by an error (%s).\n"),
if (ts->traceframes_created >= 0
&& ts->traceframe_count != ts->traceframes_created)
{
- printf_filtered (_("Buffer contains %d trace frames (of %d created total).\n"),
+ printf_filtered (_("Buffer contains %d trace "
+ "frames (of %d created total).\n"),
ts->traceframe_count, ts->traceframes_created);
}
else if (ts->traceframe_count >= 0)
ts->buffer_free);
}
+ if (ts->disconnected_tracing)
+ printf_filtered (_("Trace will continue if GDB disconnects.\n"));
+ else
+ printf_filtered (_("Trace will stop if GDB disconnects.\n"));
+
+ if (ts->circular_buffer)
+ printf_filtered (_("Trace buffer is circular.\n"));
+
/* Now report on what we're doing with tfind. */
if (traceframe_number >= 0)
printf_filtered (_("Looking at trace frame %d, tracepoint %d.\n"),
{
struct trace_status *ts = current_trace_status ();
int status;
- char *string_status;
status = target_get_trace_status (ts);
}
}
-
- if ((int) ts->traceframe_count != -1)
+ if (ts->traceframe_count != -1)
ui_out_field_int (uiout, "frames", ts->traceframe_count);
- if ((int) ts->buffer_size != -1)
- ui_out_field_int (uiout, "buffer-size", (int) ts->buffer_size);
- if ((int) ts->buffer_free != -1)
- ui_out_field_int (uiout, "buffer-free", (int) ts->buffer_free);
+ if (ts->traceframes_created != -1)
+ ui_out_field_int (uiout, "frames-created", ts->traceframes_created);
+ if (ts->buffer_size != -1)
+ ui_out_field_int (uiout, "buffer-size", ts->buffer_size);
+ if (ts->buffer_free != -1)
+ ui_out_field_int (uiout, "buffer-free", ts->buffer_free);
+
+ ui_out_field_int (uiout, "disconnected", ts->disconnected_tracing);
+ ui_out_field_int (uiout, "circular", ts->circular_buffer);
}
-
+/* This function handles the details of what to do about an ongoing
+ tracing run if the user has asked to detach or otherwise disconnect
+ from the target. */
void
-disconnect_or_stop_tracing (int from_tty)
+disconnect_tracing (int from_tty)
{
/* It can happen that the target that was tracing went away on its
own, and we didn't notice. Get a status update, and if the
if (target_get_trace_status (current_trace_status ()) < 0)
current_trace_status ()->running = 0;
+ /* If running interactively, give the user the option to cancel and
+ then decide what to do differently with the run. Scripts are
+ just going to disconnect and let the target deal with it,
+ according to how it's been instructed previously via
+ disconnected-tracing. */
if (current_trace_status ()->running && from_tty)
{
- int cont = query (_("Trace is running. Continue tracing after detach? "));
- /* Note that we send the query result without affecting the
- user's setting of disconnected_tracing, so that the answer is
- a one-time-only. */
- send_disconnected_tracing_value (cont);
-
- /* Also ensure that we do the equivalent of a tstop command if
- tracing is not to continue after the detach. */
- if (!cont)
- stop_tracing ();
+ if (current_trace_status ()->disconnected_tracing)
+ {
+ if (!query (_("Trace is running and will "
+ "continue after detach; detach anyway? ")))
+ error (_("Not confirmed."));
+ }
+ else
+ {
+ if (!query (_("Trace is running but will "
+ "stop on detach; detach anyway? ")))
+ error (_("Not confirmed."));
+ }
}
/* Also we want to be out of tfind mode, otherwise things can get
confusing upon reconnection. Just use these calls instead of
full tfind_1 behavior because we're in the middle of detaching,
and there's no point to updating current stack frame etc. */
- set_traceframe_number (-1);
+ set_current_traceframe (-1);
set_traceframe_context (NULL);
}
int from_tty)
{
int target_frameno = -1, target_tracept = -1;
- struct frame_id old_frame_id;
- char *reply;
+ struct frame_id old_frame_id = null_frame_id;
struct breakpoint *tp;
- old_frame_id = get_frame_id (get_current_frame ());
+ /* Only try to get the current stack frame if we have a chance of
+ succeeding. In particular, if we're trying to get a first trace
+ frame while all threads are running, it's not going to succeed,
+ so leave it with a default value and let the frame comparison
+ below (correctly) decide to print out the source location of the
+ trace frame. */
+ if (!(type == tfind_number && num == -1)
+ && (has_stack_frames () || traceframe_number >= 0))
+ old_frame_id = get_frame_id (get_current_frame ());
target_frameno = target_trace_find (type, num, addr1, addr2,
&target_tracept);
}
else if (target_frameno == -1)
{
- /* A request for a non-existant trace frame has failed.
+ /* A request for a non-existent trace frame has failed.
Our response will be different, depending on FROM_TTY:
If FROM_TTY is true, meaning that this command was
{
if (info_verbose)
printf_filtered ("End of trace buffer.\n");
-#if 0 /* dubious now? */
+#if 0 /* dubious now? */
/* The following will not recurse, since it's
special-cased. */
trace_find_command ("-1", from_tty);
registers_changed ();
target_dcache_invalidate ();
set_traceframe_num (target_frameno);
+ clear_traceframe_info ();
set_tracepoint_num (tp ? tp->number : target_tracept);
if (target_frameno == -1)
set_traceframe_context (NULL);
{
if (ui_out_is_mi_like_p (uiout))
ui_out_field_string (uiout, "found", "0");
- else
- printf_unfiltered (_("No trace frame found"));
+ else if (type == tfind_number && num == -1)
+ printf_unfiltered (_("No longer looking at any trace frame\n"));
+ else /* This case may never occur, check. */
+ printf_unfiltered (_("No trace frame found\n"));
}
/* If we're in nonstop mode and getting out of looking at trace
{
enum print_what print_what;
- /* NOTE: in immitation of the step command, try to determine
+ /* NOTE: in imitation of the step command, try to determine
whether we have made a transition from one function to
another. If so, we'll print the "stack frame" (ie. the new
function and it's arguments) -- otherwise we'll just show the
/* tfind command */
static void
trace_find_command (char *args, int from_tty)
-{ /* this should only be called with a numeric argument */
+{ /* This should only be called with a numeric argument. */
int frameno = -1;
if (current_trace_status ()->running && !current_trace_status ()->from_file)
- error ("May not look at trace frames while trace is running.");
+ error (_("May not look at trace frames while trace is running."));
if (args == 0 || *args == 0)
{ /* TFIND with no args means find NEXT trace frame. */
if (traceframe_number == -1)
- frameno = 0; /* "next" is first one */
+ frameno = 0; /* "next" is first one. */
else
frameno = traceframe_number + 1;
}
trace_find_pc_command (char *args, int from_tty)
{
CORE_ADDR pc;
- char tmp[40];
if (current_trace_status ()->running && !current_trace_status ()->from_file)
- error ("May not look at trace frames while trace is running.");
+ error (_("May not look at trace frames while trace is running."));
if (args == 0 || *args == 0)
pc = regcache_read_pc (get_current_regcache ());
struct breakpoint *tp;
if (current_trace_status ()->running && !current_trace_status ()->from_file)
- error ("May not look at trace frames while trace is running.");
+ error (_("May not look at trace frames while trace is running."));
if (args == 0 || *args == 0)
{
if (tracepoint_number == -1)
error (_("No current tracepoint -- please supply an argument."));
else
- tdp = tracepoint_number; /* default is current TDP */
+ tdp = tracepoint_number; /* Default is current TDP. */
}
else
tdp = parse_and_eval_long (args);
struct symtabs_and_lines sals;
struct symtab_and_line sal;
struct cleanup *old_chain;
- char startpc_str[40], endpc_str[40];
if (current_trace_status ()->running && !current_trace_status ()->from_file)
- error ("May not look at trace frames while trace is running.");
+ error (_("May not look at trace frames while trace is running."));
if (args == 0 || *args == 0)
{
trace_find_range_command (char *args, int from_tty)
{
static CORE_ADDR start, stop;
- char start_str[40], stop_str[40];
char *tmp;
if (current_trace_status ()->running && !current_trace_status ()->from_file)
- error ("May not look at trace frames while trace is running.");
+ error (_("May not look at trace frames while trace is running."));
if (args == 0 || *args == 0)
{ /* XXX FIXME: what should default behavior be? */
if (0 != (tmp = strchr (args, ',')))
{
- *tmp++ = '\0'; /* terminate start address */
+ *tmp++ = '\0'; /* Terminate start address. */
while (isspace ((int) *tmp))
tmp++;
start = parse_and_eval_address (args);
stop = parse_and_eval_address (tmp);
}
else
- { /* no explicit end address? */
+ { /* No explicit end address? */
start = parse_and_eval_address (args);
stop = start + 1; /* ??? */
}
trace_find_outside_command (char *args, int from_tty)
{
CORE_ADDR start, stop;
- char start_str[40], stop_str[40];
char *tmp;
if (current_trace_status ()->running && !current_trace_status ()->from_file)
- error ("May not look at trace frames while trace is running.");
+ error (_("May not look at trace frames while trace is running."));
if (args == 0 || *args == 0)
- { /* XXX FIXME: what should default behavior be? */
+ { /* XXX FIXME: what should default behavior be? */
printf_filtered ("Usage: tfind outside <startaddr>,<endaddr>\n");
return;
}
if (0 != (tmp = strchr (args, ',')))
{
- *tmp++ = '\0'; /* terminate start address */
+ *tmp++ = '\0'; /* Terminate start address. */
while (isspace ((int) *tmp))
tmp++;
start = parse_and_eval_address (args);
stop = parse_and_eval_address (tmp);
}
else
- { /* no explicit end address? */
+ { /* No explicit end address? */
start = parse_and_eval_address (args);
stop = start + 1; /* ??? */
}
struct symbol *sym;
struct minimal_symbol *msym;
struct block *block;
- char **canonical, *symname, *save_args = args;
+ char *symname, *save_args = args;
struct dict_iterator iter;
int j, count = 0;
struct gdbarch *gdbarch;
int regno;
if (args == 0 || *args == 0)
- error (_("requires an argument (function, line or *addr) to define a scope"));
+ error (_("requires an argument (function, "
+ "line or *addr) to define a scope"));
- sals = decode_line_1 (&args, 1, NULL, 0, &canonical, NULL);
+ sals = decode_line_1 (&args, 1, NULL, 0, NULL);
if (sals.nelts == 0)
- return; /* presumably decode_line_1 has already warned */
+ return; /* Presumably decode_line_1 has already warned. */
- /* Resolve line numbers to PC */
+ /* Resolve line numbers to PC. */
resolve_sal_pc (&sals.sals[0]);
block = block_for_pc (sals.sals[0].pc);
while (block != 0)
{
- QUIT; /* allow user to bail out with ^C */
+ QUIT; /* Allow user to bail out with ^C. */
ALL_BLOCK_SYMBOLS (block, iter, sym)
{
- QUIT; /* allow user to bail out with ^C */
+ QUIT; /* Allow user to bail out with ^C. */
if (count == 0)
printf_filtered ("Scope for %s:\n", save_args);
count++;
symname = SYMBOL_PRINT_NAME (sym);
if (symname == NULL || *symname == '\0')
- continue; /* probably botched, certainly useless */
+ continue; /* Probably botched, certainly useless. */
gdbarch = get_objfile_arch (SYMBOL_SYMTAB (sym)->objfile);
switch (SYMBOL_CLASS (sym))
{
default:
- case LOC_UNDEF: /* messed up symbol? */
+ case LOC_UNDEF: /* Messed up symbol? */
printf_filtered ("a bogus symbol, class %d.\n",
SYMBOL_CLASS (sym));
- count--; /* don't count this one */
+ count--; /* Don't count this one. */
continue;
case LOC_CONST:
printf_filtered ("a constant with value %ld (0x%lx)",
We assume the objfile architecture will contain all the
standard registers that occur in debug info in that
objfile. */
- regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch);
+ regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym,
+ gdbarch);
if (SYMBOL_IS_ARGUMENT (sym))
printf_filtered ("an argument in register $%s",
break;
case LOC_REGPARM_ADDR:
/* Note comment at LOC_REGISTER. */
- regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym, gdbarch);
+ regno = SYMBOL_REGISTER_OPS (sym)->register_number (sym,
+ gdbarch);
printf_filtered ("the address of an argument, in register $%s",
gdbarch_register_name (gdbarch, regno));
break;
printf_filtered ("optimized out.\n");
continue;
case LOC_COMPUTED:
- SYMBOL_COMPUTED_OPS (sym)->describe_location (sym, gdb_stdout);
+ SYMBOL_COMPUTED_OPS (sym)->describe_location (sym,
+ BLOCK_START (block),
+ gdb_stdout);
break;
}
if (SYMBOL_TYPE (sym))
*comma = ',';
}
-/* tdump command */
+
+/* Helper for trace_dump_command. Dump the action list starting at
+ ACTION. STEPPING_ACTIONS is true if we're iterating over the
+ actions of the body of a while-stepping action. STEPPING_FRAME is
+ set if the current traceframe was determined to be a while-stepping
+ traceframe. */
+
static void
-trace_dump_command (char *args, int from_tty)
+trace_dump_actions (struct command_line *action,
+ int stepping_actions, int stepping_frame,
+ int from_tty)
{
- struct regcache *regcache;
- struct gdbarch *gdbarch;
- struct breakpoint *t;
- struct command_line *action;
char *action_exp, *next_comma;
- struct cleanup *old_cleanups;
- int stepping_actions = 0;
- int stepping_frame = 0;
- struct bp_location *loc;
-
- if (tracepoint_number == -1)
- {
- warning (_("No current trace frame."));
- return;
- }
- t = get_tracepoint (tracepoint_number);
-
- 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);
-
- /* The current frame is a trap frame if the frame PC is equal
- to the tracepoint PC. If not, then the current frame was
- collected during single-stepping. */
-
- regcache = get_current_regcache ();
- gdbarch = get_regcache_arch (regcache);
-
- /* If the traceframe's address matches any of the tracepoint's
- locations, assume it is a direct hit rather than a while-stepping
- frame. (FIXME this is not reliable, should record each frame's
- type.) */
- stepping_frame = 1;
- for (loc = t->loc; loc; loc = loc->next)
- if (loc->address == regcache_read_pc (regcache))
- stepping_frame = 0;
-
- for (action = t->commands->commands; action; action = action->next)
+ for (; action != NULL; action = action->next)
{
struct cmd_list_element *cmd;
- QUIT; /* allow user to bail out with ^C */
+ QUIT; /* Allow user to bail out with ^C. */
action_exp = action->line;
while (isspace ((int) *action_exp))
action_exp++;
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;
+ {
+ int i;
+
+ for (i = 0; i < action->body_count; ++i)
+ trace_dump_actions (action->body_list[i],
+ 1, stepping_frame, from_tty);
+ }
else if (cmd_cfunc_eq (cmd, collect_pseudocommand))
{
/* Display the collected data.
if (stepping_frame == stepping_actions)
{
do
- { /* repeat over a comma-separated list */
- QUIT; /* allow user to bail out with ^C */
+ { /* Repeat over a comma-separated list. */
+ QUIT; /* Allow user to bail out with ^C. */
if (*action_exp == ',')
action_exp++;
while (isspace ((int) *action_exp))
}
}
}
- discard_cleanups (old_cleanups);
+}
+
+/* The tdump command. */
+
+static void
+trace_dump_command (char *args, int from_tty)
+{
+ struct regcache *regcache;
+ struct breakpoint *t;
+ int stepping_frame = 0;
+ struct bp_location *loc;
+ char *line, *default_collect_line = NULL;
+ struct command_line *actions, *default_collect_action = NULL;
+ struct cleanup *old_chain = NULL;
+
+ if (tracepoint_number == -1)
+ {
+ warning (_("No current trace frame."));
+ return;
+ }
+
+ t = get_tracepoint (tracepoint_number);
+
+ if (t == NULL)
+ error (_("No known tracepoint matches 'current' tracepoint #%d."),
+ tracepoint_number);
+
+ printf_filtered ("Data collected at tracepoint %d, trace frame %d:\n",
+ tracepoint_number, traceframe_number);
+
+ /* The current frame is a trap frame if the frame PC is equal
+ to the tracepoint PC. If not, then the current frame was
+ collected during single-stepping. */
+
+ regcache = get_current_regcache ();
+
+ /* If the traceframe's address matches any of the tracepoint's
+ locations, assume it is a direct hit rather than a while-stepping
+ frame. (FIXME this is not reliable, should record each frame's
+ type.) */
+ stepping_frame = 1;
+ for (loc = t->loc; loc; loc = loc->next)
+ if (loc->address == regcache_read_pc (regcache))
+ stepping_frame = 0;
+
+ actions = breakpoint_commands (t);
+
+ /* If there is a default-collect list, make up a collect command,
+ prepend to the tracepoint's commands, and pass the whole mess to
+ the trace dump scanner. We need to validate because
+ default-collect might have been junked since the trace run. */
+ if (*default_collect)
+ {
+ default_collect_line = xstrprintf ("collect %s", default_collect);
+ old_chain = make_cleanup (xfree, default_collect_line);
+ line = default_collect_line;
+ validate_actionline (&line, t);
+ default_collect_action = xmalloc (sizeof (struct command_line));
+ make_cleanup (xfree, default_collect_action);
+ default_collect_action->next = actions;
+ default_collect_action->line = line;
+ actions = default_collect_action;
+ }
+
+ trace_dump_actions (actions, 0, stepping_frame, from_tty);
+
+ if (*default_collect)
+ do_cleanups (old_chain);
}
/* Encode a piece of a tracepoint's source-level definition in a form
if (80 + strlen (srctype) > buf_size)
error (_("Buffer too small for source encoding"));
sprintf (buf, "%x:%s:%s:%x:%x:",
- tpnum, phex_nz (addr, sizeof (addr)), srctype, 0, (int) strlen (src));
+ tpnum, phex_nz (addr, sizeof (addr)),
+ srctype, 0, (int) strlen (src));
if (strlen (buf) + strlen (src) * 2 >= buf_size)
error (_("Source string too long for buffer"));
bin2hex (src, buf + strlen (buf), 0);
struct uploaded_tp *uploaded_tps = NULL, *utp;
struct uploaded_tsv *uploaded_tsvs = NULL, *utsv;
int a;
- struct uploaded_string *cmd;
+ char *act;
LONGEST gotten = 0;
ULONGEST offset = 0;
#define MAX_TRACE_UPLOAD 2000
pathname = tilde_expand (filename);
cleanup = make_cleanup (xfree, pathname);
- fp = fopen (pathname, "w");
+ fp = fopen (pathname, "wb");
if (!fp)
error (_("Unable to open file '%s' for saving trace data (%s)"),
filename, safe_strerror (errno));
if (ts->stop_reason == tracepoint_error)
{
char *buf = (char *) alloca (strlen (ts->error_desc) * 2 + 1);
+
bin2hex ((gdb_byte *) ts->error_desc, buf, 0);
fprintf (fp, ":%s", buf);
}
fprintf (fp, ";tfree:%x", ts->buffer_free);
if (ts->buffer_size >= 0)
fprintf (fp, ";tsize:%x", ts->buffer_size);
+ if (ts->disconnected_tracing)
+ fprintf (fp, ";disconn:%x", ts->disconnected_tracing);
+ if (ts->circular_buffer)
+ fprintf (fp, ";circular:%x", ts->circular_buffer);
fprintf (fp, "\n");
/* Note that we want to upload tracepoints and save those, rather
fprintf (fp, ":X%x,%s", (unsigned int) strlen (utp->cond) / 2,
utp->cond);
fprintf (fp, "\n");
- for (a = 0; a < utp->numactions; ++a)
+ for (a = 0; VEC_iterate (char_ptr, utp->actions, a, act); ++a)
fprintf (fp, "tp A%x:%s:%s\n",
- utp->number, phex_nz (utp->addr, sizeof (utp->addr)),
- utp->actions[a]);
- for (a = 0; a < utp->num_step_actions; ++a)
+ utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act);
+ for (a = 0; VEC_iterate (char_ptr, utp->step_actions, a, act); ++a)
fprintf (fp, "tp S%x:%s:%s\n",
- utp->number, phex_nz (utp->addr, sizeof (utp->addr)),
- utp->step_actions[a]);
+ utp->number, phex_nz (utp->addr, sizeof (utp->addr)), act);
if (utp->at_string)
{
encode_source_string (utp->number, utp->addr,
if (utp->cond_string)
{
encode_source_string (utp->number, utp->addr,
- "cond", utp->cond_string, buf, MAX_TRACE_UPLOAD);
+ "cond", utp->cond_string,
+ buf, MAX_TRACE_UPLOAD);
fprintf (fp, "tp Z%s\n", buf);
}
- for (cmd = utp->cmd_strings; cmd; cmd = cmd->next)
+ for (a = 0; VEC_iterate (char_ptr, utp->cmd_strings, a, act); ++a)
{
- encode_source_string (utp->number, utp->addr, "cmd", cmd->str,
+ encode_source_string (utp->number, utp->addr, "cmd", act,
buf, MAX_TRACE_UPLOAD);
fprintf (fp, "tp Z%s\n", buf);
}
if NUM is already current. */
void
-set_traceframe_number (int num)
+set_current_traceframe (int num)
{
int newnum;
/* Changing the traceframe changes our view of registers and of the
frame chain. */
registers_changed ();
+
+ clear_traceframe_info ();
+}
+
+/* Make the traceframe NUM be the current trace frame, and do nothing
+ more. */
+
+void
+set_traceframe_number (int num)
+{
+ traceframe_number = num;
}
/* A cleanup used when switching away and back from tfind mode. */
{
struct current_traceframe_cleanup *old = arg;
- set_traceframe_number (old->traceframe_number);
+ set_current_traceframe (old->traceframe_number);
}
static void
restore_current_traceframe_cleanup_dtor);
}
+struct cleanup *
+make_cleanup_restore_traceframe_number (void)
+{
+ return make_cleanup_restore_integer (&traceframe_number);
+}
+
/* Given a number and address, return an uploaded tracepoint with that
number, creating if necessary. */
memset (utp, 0, sizeof (struct uploaded_tp));
utp->number = num;
utp->addr = addr;
+ utp->actions = NULL;
+ utp->step_actions = NULL;
+ utp->cmd_strings = NULL;
utp->next = *utpp;
*utpp = utp;
return utp;
if (t->type == utp->type
&& t->step_count == utp->step
&& t->pass_count == utp->pass
- /* FIXME also test conditionals and actions */
+ /* FIXME also test conditionals and actions. */
)
{
/* Scan the locations for an address match. */
{
t = find_matching_tracepoint (utp);
if (t)
- printf_filtered (_("Assuming tracepoint %d is same as target's tracepoint %d at %s.\n"),
- t->number, utp->number, paddress (get_current_arch (), utp->addr));
+ printf_filtered (_("Assuming tracepoint %d is same "
+ "as target's tracepoint %d at %s.\n"),
+ t->number, utp->number,
+ paddress (get_current_arch (), utp->addr));
else
{
t = create_tracepoint_from_upload (utp);
if (t)
- printf_filtered (_("Created tracepoint %d for target's tracepoint %d at %s.\n"),
- t->number, utp->number, paddress (get_current_arch (), utp->addr));
+ printf_filtered (_("Created tracepoint %d for "
+ "target's tracepoint %d at %s.\n"),
+ t->number, utp->number,
+ paddress (get_current_arch (), utp->addr));
else
- printf_filtered (_("Failed to create tracepoint for target's tracepoint %d at %s, skipping it.\n"),
- utp->number, paddress (get_current_arch (), utp->addr));
+ printf_filtered (_("Failed to create tracepoint for target's "
+ "tracepoint %d at %s, skipping it.\n"),
+ utp->number,
+ paddress (get_current_arch (), utp->addr));
}
/* Whether found or created, record the number used by the
target, to help with mapping target tracepoints back to their
}
/* Fish for a name that is not in use. */
- /* (should check against all internal vars?) */
+ /* (should check against all internal vars?) */
while (find_trace_state_variable (buf))
sprintf (buf, "%s_%d", namebase, try_num++);
/* We have an available name, create the variable. */
- tsv = create_trace_state_variable (xstrdup (buf));
+ tsv = create_trace_state_variable (buf);
tsv->initial_value = utsv->initial_value;
tsv->builtin = utsv->builtin;
{
tsv = find_matching_tsv (utsv);
if (tsv)
- printf_filtered (_("Assuming trace state variable $%s is same as target's variable %d.\n"),
- tsv->name, utsv->number);
+ {
+ if (info_verbose)
+ printf_filtered (_("Assuming trace state variable $%s "
+ "is same as target's variable %d.\n"),
+ tsv->name, utsv->number);
+ }
else
{
tsv = create_tsv_from_upload (utsv);
- printf_filtered (_("Created trace state variable $%s for target's variable %d.\n"),
- tsv->name, utsv->number);
+ if (info_verbose)
+ printf_filtered (_("Created trace state variable "
+ "$%s for target's variable %d.\n"),
+ tsv->name, utsv->number);
}
/* Give precedence to numberings that come from the target. */
if (tsv)
int trace_fd = -1;
off_t trace_frames_offset;
off_t cur_offset;
+int cur_traceframe_number;
int cur_data_size;
int trace_regblock_size;
struct uploaded_tp **utpp,
struct uploaded_tsv **utsvp);
+/* Read SIZE bytes into READBUF from the trace frame, starting at
+ TRACE_FD's current position. Note that this call `read'
+ underneath, hence it advances the file's seek position. Throws an
+ error if the `read' syscall fails, or less than SIZE bytes are
+ read. */
+
+static void
+tfile_read (gdb_byte *readbuf, int size)
+{
+ int gotten;
+
+ gotten = read (trace_fd, readbuf, size);
+ if (gotten < 0)
+ perror_with_name (trace_filename);
+ else if (gotten < size)
+ error (_("Premature end of file while reading trace file"));
+}
+
static void
tfile_open (char *filename, int from_tty)
{
int flags;
int scratch_chan;
char header[TRACE_HEADER_SIZE];
- char linebuf[1000]; /* should be max remote packet size or so */
+ char linebuf[1000]; /* Should be max remote packet size or so. */
char byte;
- int bytes, i, gotten;
+ int bytes, i;
struct trace_status *ts;
struct uploaded_tp *uploaded_tps = NULL;
struct uploaded_tsv *uploaded_tsvs = NULL;
filename = tilde_expand (filename);
if (!IS_ABSOLUTE_PATH(filename))
{
- temp = concat (current_directory, "/", filename, (char *)NULL);
+ temp = concat (current_directory, "/", filename, (char *) NULL);
xfree (filename);
filename = temp;
}
/* Looks semi-reasonable. Toss the old trace file and work on the new. */
- discard_cleanups (old_chain); /* Don't free filename any more */
+ discard_cleanups (old_chain); /* Don't free filename any more. */
unpush_target (&tfile_ops);
push_target (&tfile_ops);
bytes = 0;
/* Read the file header and test for validity. */
- gotten = read (trace_fd, &header, TRACE_HEADER_SIZE);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < TRACE_HEADER_SIZE)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &header, TRACE_HEADER_SIZE);
bytes += TRACE_HEADER_SIZE;
if (!(header[0] == 0x7f
ts->stop_reason = trace_stop_reason_unknown;
ts->traceframe_count = -1;
ts->buffer_free = 0;
+ ts->disconnected_tracing = 0;
+ ts->circular_buffer = 0;
+
+ cur_traceframe_number = -1;
/* Read through a section of newline-terminated lines that
define things like tracepoints. */
i = 0;
while (1)
{
- gotten = read (trace_fd, &byte, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
+ tfile_read (&byte, 1);
++bytes;
if (byte == '\n')
error (_("No register block size recorded in trace file"));
if (ts->traceframe_count <= 0)
{
- warning ("No traceframes present in this file.");
+ warning (_("No traceframes present in this file."));
return;
}
post_create_inferior (&tfile_ops, from_tty);
#if 0
- /* FIXME this will get defined in MI patch submission */
+ /* FIXME this will get defined in MI patch submission. */
tfind_1 (tfind_number, 0, 0, 0, 0);
#endif
}
parse_tsv_definition (p, utsvp);
}
else
- warning ("Ignoring trace file definition \"%s\"", line);
+ warning (_("Ignoring trace file definition \"%s\""), line);
}
/* Parse the part of trace status syntax that is shared between
the remote protocol and the trace file reader. */
-extern char *unpack_varlen_hex (char *buff, ULONGEST *result);
-
void
parse_trace_status (char *line, struct trace_status *ts)
{
ts->traceframes_created = -1;
ts->buffer_free = -1;
ts->buffer_size = -1;
+ ts->disconnected_tracing = 0;
+ ts->circular_buffer = 0;
while (*p++)
{
p = unpack_varlen_hex (++p1, &val);
ts->stop_reason = trace_never_run;
}
- else if (strncmp (p, stop_reason_names[tracepoint_passcount], p1 - p) == 0)
+ else if (strncmp (p, stop_reason_names[tracepoint_passcount],
+ p1 - p) == 0)
{
p = unpack_varlen_hex (++p1, &val);
ts->stop_reason = tracepoint_passcount;
p = unpack_varlen_hex (++p1, &val);
ts->stop_reason = tstop_command;
}
+ else if (strncmp (p, stop_reason_names[trace_disconnected], p1 - p) == 0)
+ {
+ p = unpack_varlen_hex (++p1, &val);
+ ts->stop_reason = trace_disconnected;
+ }
else if (strncmp (p, stop_reason_names[tracepoint_error], p1 - p) == 0)
{
p2 = strchr (++p1, ':');
p = unpack_varlen_hex (++p1, &val);
ts->buffer_size = val;
}
+ else if (strncmp (p, "disconn", p1 - p) == 0)
+ {
+ p = unpack_varlen_hex (++p1, &val);
+ ts->disconnected_tracing = val;
+ }
+ else if (strncmp (p, "circular", p1 - p) == 0)
+ {
+ p = unpack_varlen_hex (++p1, &val);
+ ts->circular_buffer = val;
+ }
else
{
/* Silently skip unknown optional info. */
char *p;
char piece;
ULONGEST num, addr, step, pass, orig_size, xlen, start;
- int enabled, i, end;
+ int enabled, end;
enum bptype type;
- char *cond, *srctype, *src, *buf;
+ char *cond, *srctype, *buf;
struct uploaded_tp *utp = NULL;
p = line;
p++;
p = unpack_varlen_hex (p, &orig_size);
}
+ else if (*p == 'S')
+ {
+ type = bp_static_tracepoint;
+ p++;
+ }
else if (*p == 'X')
{
p++;
p += 2 * xlen;
}
else
- warning (_("Unrecognized char '%c' in tracepoint definition, skipping rest"), *p);
+ warning (_("Unrecognized char '%c' in tracepoint "
+ "definition, skipping rest"), *p);
}
utp = get_uploaded_tp (num, addr, utpp);
utp->type = type;
else if (piece == 'A')
{
utp = get_uploaded_tp (num, addr, utpp);
- utp->actions[utp->numactions++] = xstrdup (p);
+ VEC_safe_push (char_ptr, utp->actions, xstrdup (p));
}
else if (piece == 'S')
{
utp = get_uploaded_tp (num, addr, utpp);
- utp->step_actions[utp->num_step_actions++] = xstrdup (p);
+ VEC_safe_push (char_ptr, utp->step_actions, xstrdup (p));
}
else if (piece == 'Z')
{
else if (strncmp (srctype, "cond:", strlen ("cond:")) == 0)
utp->cond_string = xstrdup (buf);
else if (strncmp (srctype, "cmd:", strlen ("cmd:")) == 0)
- {
- /* FIXME consider using a vector? */
- struct uploaded_string *last, *newlast;
- newlast = (struct uploaded_string *) xmalloc (sizeof (struct uploaded_string));
- newlast->str = xstrdup (buf);
- newlast->next = NULL;
- if (utp->cmd_strings)
- {
- for (last = utp->cmd_strings; last->next; last = last->next)
- ;
- last->next = newlast;
- }
- else
- utp->cmd_strings = newlast;
- }
+ VEC_safe_push (char_ptr, utp->cmd_strings, xstrdup (buf));
}
else
{
return;
pid = ptid_get_pid (inferior_ptid);
- inferior_ptid = null_ptid; /* Avoid confusion from thread stuff */
+ inferior_ptid = null_ptid; /* Avoid confusion from thread stuff. */
exit_inferior_silent (pid);
close (trace_fd);
static void
tfile_files_info (struct target_ops *t)
{
- /* (it would be useful to mention the name of the file) */
+ /* (it would be useful to mention the name of the file). */
printf_filtered ("Looking at a trace file.\n");
}
short tpnum;
struct breakpoint *tp;
off_t saved_offset = cur_offset;
- int gotten;
- /* FIXME dig pc out of collected registers */
+ /* FIXME dig pc out of collected registers. */
/* Fall back to using tracepoint address. */
lseek (trace_fd, tframe_offset, SEEK_SET);
- gotten = read (trace_fd, &tpnum, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &tpnum, 2);
+ tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
+ gdbarch_byte_order
+ (target_gdbarch));
tp = get_tracepoint_by_number_on_target (tpnum);
- /* FIXME this is a poor heuristic if multiple locations */
+ /* FIXME this is a poor heuristic if multiple locations. */
if (tp && tp->loc)
addr = tp->loc->address;
return addr;
}
+/* Make tfile's selected traceframe match GDB's selected
+ traceframe. */
+
+static void
+set_tfile_traceframe (void)
+{
+ int newnum;
+
+ if (cur_traceframe_number == get_traceframe_number ())
+ return;
+
+ /* Avoid recursion, tfile_trace_find calls us again. */
+ cur_traceframe_number = get_traceframe_number ();
+
+ newnum = target_trace_find (tfind_number,
+ get_traceframe_number (), 0, 0, NULL);
+
+ /* Should not happen. If it does, all bets are off. */
+ if (newnum != get_traceframe_number ())
+ warning (_("could not set tfile's traceframe"));
+}
+
/* Given a type of search and some parameters, scan the collection of
traceframes in the file looking for a match. When found, return
both the traceframe and tracepoint number, otherwise -1 for
ULONGEST addr1, ULONGEST addr2, int *tpp)
{
short tpnum;
- int tfnum = 0, found = 0, gotten;
- int data_size;
+ int tfnum = 0, found = 0;
+ unsigned int data_size;
struct breakpoint *tp;
off_t offset, tframe_offset;
ULONGEST tfaddr;
+ /* Lookups other than by absolute frame number depend on the current
+ trace selected, so make sure it is correct on the tfile end
+ first. */
+ if (type != tfind_number)
+ set_tfile_traceframe ();
+
lseek (trace_fd, trace_frames_offset, SEEK_SET);
offset = trace_frames_offset;
while (1)
{
tframe_offset = offset;
- gotten = read (trace_fd, &tpnum, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &tpnum, 2);
+ tpnum = (short) extract_signed_integer ((gdb_byte *) &tpnum, 2,
+ gdbarch_byte_order
+ (target_gdbarch));
offset += 2;
if (tpnum == 0)
break;
- gotten = read (trace_fd, &data_size, 4);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 4)
- error (_("Premature end of file while reading trace file"));
+ tfile_read ((gdb_byte *) &data_size, 4);
+ data_size = (unsigned int) extract_unsigned_integer
+ ((gdb_byte *) &data_size, 4,
+ gdbarch_byte_order (target_gdbarch));
offset += 4;
switch (type)
{
*tpp = tpnum;
cur_offset = offset;
cur_data_size = data_size;
+ cur_traceframe_number = tfnum;
return tfnum;
}
/* Skip past the traceframe's data. */
return -1;
}
+/* Prototype of the callback passed to tframe_walk_blocks. */
+typedef int (*walk_blocks_callback_func) (char blocktype, void *data);
+
+/* Callback for traceframe_walk_blocks, used to find a given block
+ type in a traceframe. */
+
+static int
+match_blocktype (char blocktype, void *data)
+{
+ char *wantedp = data;
+
+ if (*wantedp == blocktype)
+ return 1;
+
+ return 0;
+}
+
+/* Walk over all traceframe block starting at POS offset from
+ CUR_OFFSET, and call CALLBACK for each block found, passing in DATA
+ unmodified. If CALLBACK returns true, this returns the position in
+ the traceframe where the block is found, relative to the start of
+ the traceframe (cur_offset). Returns -1 if no callback call
+ returned true, indicating that all blocks have been walked. */
+
+static int
+traceframe_walk_blocks (walk_blocks_callback_func callback,
+ int pos, void *data)
+{
+ /* Iterate through a traceframe's blocks, looking for a block of the
+ requested type. */
+
+ lseek (trace_fd, cur_offset + pos, SEEK_SET);
+ while (pos < cur_data_size)
+ {
+ unsigned short mlen;
+ char block_type;
+
+ tfile_read (&block_type, 1);
+
+ ++pos;
+
+ if ((*callback) (block_type, data))
+ return pos;
+
+ switch (block_type)
+ {
+ case 'R':
+ lseek (trace_fd, cur_offset + pos + trace_regblock_size, SEEK_SET);
+ pos += trace_regblock_size;
+ break;
+ case 'M':
+ lseek (trace_fd, cur_offset + pos + 8, SEEK_SET);
+ tfile_read ((gdb_byte *) &mlen, 2);
+ mlen = (unsigned short)
+ extract_unsigned_integer ((gdb_byte *) &mlen, 2,
+ gdbarch_byte_order
+ (target_gdbarch));
+ lseek (trace_fd, mlen, SEEK_CUR);
+ pos += (8 + 2 + mlen);
+ break;
+ case 'V':
+ lseek (trace_fd, cur_offset + pos + 4 + 8, SEEK_SET);
+ pos += (4 + 8);
+ break;
+ default:
+ error (_("Unknown block type '%c' (0x%x) in trace frame"),
+ block_type, block_type);
+ break;
+ }
+ }
+
+ return -1;
+}
+
+/* Convenience wrapper around traceframe_walk_blocks. Looks for the
+ position offset of a block of type TYPE_WANTED in the current trace
+ frame, starting at POS. Returns -1 if no such block was found. */
+
+static int
+traceframe_find_block_type (char type_wanted, int pos)
+{
+ return traceframe_walk_blocks (match_blocktype, pos, &type_wanted);
+}
+
/* Look for a block of saved registers in the traceframe, and get the
requested register from it. */
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
char block_type;
- int i, pos, offset, regn, regsize, gotten;
+ int pos, offset, regn, regsize, pc_regno;
unsigned short mlen;
char *regs;
if (!trace_regblock_size)
return;
+ set_tfile_traceframe ();
+
regs = alloca (trace_regblock_size);
- lseek (trace_fd, cur_offset, SEEK_SET);
- pos = 0;
- while (pos < cur_data_size)
+ if (traceframe_find_block_type ('R', 0) >= 0)
{
- gotten = read (trace_fd, &block_type, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
+ tfile_read (regs, trace_regblock_size);
- ++pos;
- switch (block_type)
+ /* Assume the block is laid out in GDB register number order,
+ each register with the size that it has in GDB. */
+ offset = 0;
+ for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
{
- case 'R':
- gotten = read (trace_fd, regs, trace_regblock_size);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < trace_regblock_size)
- error (_("Premature end of file while reading trace file"));
-
- /* Assume the block is laid out in GDB register number order,
- each register with the size that it has in GDB. */
- offset = 0;
- for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
+ regsize = register_size (gdbarch, regn);
+ /* Make sure we stay within block bounds. */
+ if (offset + regsize >= trace_regblock_size)
+ break;
+ if (regcache_register_status (regcache, regn) == REG_UNKNOWN)
{
- regsize = register_size (gdbarch, regn);
- /* Make sure we stay within block bounds. */
- if (offset + regsize >= trace_regblock_size)
- break;
- if (!regcache_valid_p (regcache, regn))
+ if (regno == regn)
{
- if (regno == regn)
- {
- regcache_raw_supply (regcache, regno, regs + offset);
- break;
- }
- else if (regno == -1)
- {
- regcache_raw_supply (regcache, regn, regs + offset);
- }
+ regcache_raw_supply (regcache, regno, regs + offset);
+ break;
+ }
+ else if (regno == -1)
+ {
+ regcache_raw_supply (regcache, regn, regs + offset);
}
- offset += regsize;
}
- return;
- case 'M':
- lseek (trace_fd, 8, SEEK_CUR);
- gotten = read (trace_fd, &mlen, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
- lseek (trace_fd, mlen, SEEK_CUR);
- pos += (8 + 2 + mlen);
- break;
- case 'V':
- lseek (trace_fd, 4 + 8, SEEK_CUR);
- pos += (4 + 8);
- break;
- default:
- error ("Unknown block type '%c' (0x%x) in trace frame",
- block_type, block_type);
- break;
+ offset += regsize;
+ }
+ return;
+ }
+
+ /* We get here if no register data has been found. Mark registers
+ as unavailable. */
+ for (regn = 0; regn < gdbarch_num_regs (gdbarch); regn++)
+ regcache_raw_supply (regcache, regn, NULL);
+
+ /* We can often usefully guess that the PC is going to be the same
+ as the address of the tracepoint. */
+ pc_regno = gdbarch_pc_regnum (gdbarch);
+ if (pc_regno >= 0 && (regno == -1 || regno == pc_regno))
+ {
+ struct breakpoint *tp = get_tracepoint (tracepoint_number);
+
+ if (tp && tp->loc)
+ {
+ /* But don't try to guess if tracepoint is multi-location... */
+ if (tp->loc->next)
+ {
+ warning (_("Tracepoint %d has multiple "
+ "locations, cannot infer $pc"),
+ tp->number);
+ return;
+ }
+ /* ... or does while-stepping. */
+ if (tp->step_count > 0)
+ {
+ warning (_("Tracepoint %d does while-stepping, "
+ "cannot infer $pc"),
+ tp->number);
+ return;
+ }
+
+ store_unsigned_integer (regs, register_size (gdbarch, pc_regno),
+ gdbarch_byte_order (gdbarch),
+ tp->loc->address);
+ regcache_raw_supply (regcache, pc_regno, regs);
}
}
}
const char *annex, gdb_byte *readbuf,
const gdb_byte *writebuf, ULONGEST offset, LONGEST len)
{
- char block_type;
- int pos, gotten;
- ULONGEST maddr;
- unsigned short mlen;
-
/* We're only doing regular memory for now. */
if (object != TARGET_OBJECT_MEMORY)
return -1;
if (readbuf == NULL)
- error ("tfile_xfer_partial: trace file is read-only");
+ error (_("tfile_xfer_partial: trace file is read-only"));
- lseek (trace_fd, cur_offset, SEEK_SET);
- pos = 0;
- while (pos < cur_data_size)
+ set_tfile_traceframe ();
+
+ if (traceframe_number != -1)
{
- gotten = read (trace_fd, &block_type, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
- ++pos;
- switch (block_type)
+ int pos = 0;
+
+ /* Iterate through the traceframe's blocks, looking for
+ memory. */
+ while ((pos = traceframe_find_block_type ('M', pos)) >= 0)
{
- case 'R':
- lseek (trace_fd, trace_regblock_size, SEEK_CUR);
- pos += trace_regblock_size;
- break;
- case 'M':
- gotten = read (trace_fd, &maddr, 8);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 8)
- error (_("Premature end of file while reading trace file"));
-
- gotten = read (trace_fd, &mlen, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
- if (maddr <= offset && (offset + len) <= (maddr + mlen))
+ ULONGEST maddr, amt;
+ unsigned short mlen;
+ enum bfd_endian byte_order = gdbarch_byte_order (target_gdbarch);
+
+ tfile_read ((gdb_byte *) &maddr, 8);
+ maddr = extract_unsigned_integer ((gdb_byte *) &maddr, 8,
+ byte_order);
+ tfile_read ((gdb_byte *) &mlen, 2);
+ mlen = (unsigned short)
+ extract_unsigned_integer ((gdb_byte *) &mlen, 2, byte_order);
+
+ /* If the block includes the first part of the desired
+ range, return as much it has; GDB will re-request the
+ remainder, which might be in a different block of this
+ trace frame. */
+ if (maddr <= offset && offset < (maddr + mlen))
{
- gotten = read (trace_fd, readbuf, mlen);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < mlen)
- error (_("Premature end of file qwhile reading trace file"));
+ amt = (maddr + mlen) - offset;
+ if (amt > len)
+ amt = len;
- return mlen;
+ tfile_read (readbuf, amt);
+ return amt;
}
- lseek (trace_fd, mlen, SEEK_CUR);
+
+ /* Skip over this block. */
pos += (8 + 2 + mlen);
- break;
- case 'V':
- lseek (trace_fd, 4 + 8, SEEK_CUR);
- pos += (4 + 8);
- break;
- default:
- error ("Unknown block type '%c' (0x%x) in traceframe",
- block_type, block_type);
- break;
}
}
+
+ /* It's unduly pedantic to refuse to look at the executable for
+ read-only pieces; so do the equivalent of readonly regions aka
+ QTro packet. */
+ /* FIXME account for relocation at some point. */
+ if (exec_bfd)
+ {
+ asection *s;
+ bfd_size_type size;
+ bfd_vma vma;
+
+ for (s = exec_bfd->sections; s; s = s->next)
+ {
+ if ((s->flags & SEC_LOAD) == 0
+ || (s->flags & SEC_READONLY) == 0)
+ continue;
+
+ vma = s->vma;
+ size = bfd_get_section_size (s);
+ if (vma <= offset && offset < (vma + size))
+ {
+ ULONGEST amt;
+
+ amt = (vma + size) - offset;
+ if (amt > len)
+ amt = len;
+
+ amt = bfd_get_section_contents (exec_bfd, s,
+ readbuf, offset - vma, amt);
+ return amt;
+ }
+ }
+ }
+
/* Indicate failure to find the requested memory block. */
return -1;
}
static int
tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val)
{
- char block_type;
- int pos, vnum, gotten;
- unsigned short mlen;
+ int pos;
+
+ set_tfile_traceframe ();
- lseek (trace_fd, cur_offset, SEEK_SET);
pos = 0;
- while (pos < cur_data_size)
+ while ((pos = traceframe_find_block_type ('V', pos)) >= 0)
{
- gotten = read (trace_fd, &block_type, 1);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 1)
- error (_("Premature end of file while reading trace file"));
- ++pos;
- switch (block_type)
+ int vnum;
+
+ tfile_read ((gdb_byte *) &vnum, 4);
+ vnum = (int) extract_signed_integer ((gdb_byte *) &vnum, 4,
+ gdbarch_byte_order
+ (target_gdbarch));
+ if (tsvnum == vnum)
{
- case 'R':
- lseek (trace_fd, trace_regblock_size, SEEK_CUR);
- pos += trace_regblock_size;
- break;
- case 'M':
- lseek (trace_fd, 8, SEEK_CUR);
- gotten = read (trace_fd, &mlen, 2);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 2)
- error (_("Premature end of file while reading trace file"));
- lseek (trace_fd, mlen, SEEK_CUR);
- pos += (8 + 2 + mlen);
- break;
- case 'V':
- gotten = read (trace_fd, &vnum, 4);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 4)
- error (_("Premature end of file while reading trace file"));
- if (tsvnum == vnum)
- {
- gotten = read (trace_fd, val, 8);
- if (gotten < 0)
- perror_with_name (trace_filename);
- else if (gotten < 8)
- error (_("Premature end of file while reading trace file"));
- return 1;
- }
- lseek (trace_fd, 8, SEEK_CUR);
- pos += (4 + 8);
- break;
- default:
- error ("Unknown block type '%c' (0x%x) in traceframe",
- block_type, block_type);
- break;
+ tfile_read ((gdb_byte *) val, 8);
+ *val = extract_signed_integer ((gdb_byte *) val, 8,
+ gdbarch_byte_order
+ (target_gdbarch));
+ return 1;
}
+ pos += (4 + 8);
}
+
/* Didn't find anything. */
return 0;
}
+static int
+tfile_has_all_memory (struct target_ops *ops)
+{
+ return 1;
+}
+
static int
tfile_has_memory (struct target_ops *ops)
{
static int
tfile_has_stack (struct target_ops *ops)
{
- return 1;
+ return traceframe_number != -1;
}
static int
tfile_has_registers (struct target_ops *ops)
{
- return 1;
+ return traceframe_number != -1;
+}
+
+/* Callback for traceframe_walk_blocks. Builds a traceframe_info
+ object for the tfile target's current traceframe. */
+
+static int
+build_traceframe_info (char blocktype, void *data)
+{
+ struct traceframe_info *info = data;
+
+ switch (blocktype)
+ {
+ case 'M':
+ {
+ struct mem_range *r;
+ ULONGEST maddr;
+ unsigned short mlen;
+
+ tfile_read ((gdb_byte *) &maddr, 8);
+ tfile_read ((gdb_byte *) &mlen, 2);
+
+ r = VEC_safe_push (mem_range_s, info->memory, NULL);
+
+ r->start = maddr;
+ r->length = mlen;
+ break;
+ }
+ case 'V':
+ case 'R':
+ case 'S':
+ {
+ break;
+ }
+ default:
+ warning (_("Unhandled trace block type (%d) '%c ' "
+ "while building trace frame info."),
+ blocktype, blocktype);
+ break;
+ }
+
+ return 0;
+}
+
+static struct traceframe_info *
+tfile_traceframe_info (void)
+{
+ struct traceframe_info *info = XCNEW (struct traceframe_info);
+
+ traceframe_walk_blocks (build_traceframe_info, 0, info);
+ return info;
}
static void
{
tfile_ops.to_shortname = "tfile";
tfile_ops.to_longname = "Local trace dump file";
- tfile_ops.to_doc =
- "Use a trace file as a target. Specify the filename of the trace file.";
+ tfile_ops.to_doc
+ = "Use a trace file as a target. Specify the filename of the trace file.";
tfile_ops.to_open = tfile_open;
tfile_ops.to_close = tfile_close;
tfile_ops.to_fetch_registers = tfile_fetch_registers;
tfile_ops.to_files_info = tfile_files_info;
tfile_ops.to_get_trace_status = tfile_get_trace_status;
tfile_ops.to_trace_find = tfile_trace_find;
- tfile_ops.to_get_trace_state_variable_value = tfile_get_trace_state_variable_value;
- /* core_stratum might seem more logical, but GDB doesn't like having
- more than one core_stratum vector. */
+ tfile_ops.to_get_trace_state_variable_value
+ = tfile_get_trace_state_variable_value;
tfile_ops.to_stratum = process_stratum;
+ tfile_ops.to_has_all_memory = tfile_has_all_memory;
tfile_ops.to_has_memory = tfile_has_memory;
tfile_ops.to_has_stack = tfile_has_stack;
tfile_ops.to_has_registers = tfile_has_registers;
+ tfile_ops.to_traceframe_info = tfile_traceframe_info;
tfile_ops.to_magic = OPS_MAGIC;
}
+/* Given a line of text defining a static tracepoint marker, parse it
+ into a "static tracepoint marker" object. Throws an error is
+ parsing fails. If PP is non-null, it points to one past the end of
+ the parsed marker definition. */
+
+void
+parse_static_tracepoint_marker_definition (char *line, char **pp,
+ struct static_tracepoint_marker *marker)
+{
+ char *p, *endp;
+ ULONGEST addr;
+ int end;
+
+ p = line;
+ p = unpack_varlen_hex (p, &addr);
+ p++; /* skip a colon */
+
+ marker->gdbarch = target_gdbarch;
+ marker->address = (CORE_ADDR) addr;
+
+ endp = strchr (p, ':');
+ if (endp == NULL)
+ error (_("bad marker definition: %s"), line);
+
+ marker->str_id = xmalloc (endp - p + 1);
+ end = hex2bin (p, (gdb_byte *) marker->str_id, (endp - p + 1) / 2);
+ marker->str_id[end] = '\0';
+
+ p += 2 * end;
+ p++; /* skip a colon */
+
+ marker->extra = xmalloc (strlen (p) + 1);
+ end = hex2bin (p, (gdb_byte *) marker->extra, strlen (p) / 2);
+ marker->extra[end] = '\0';
+
+ if (pp)
+ *pp = p;
+}
+
+/* Release a static tracepoint marker's contents. Note that the
+ object itself isn't released here. There objects are usually on
+ the stack. */
+
+void
+release_static_tracepoint_marker (struct static_tracepoint_marker *marker)
+{
+ xfree (marker->str_id);
+ marker->str_id = NULL;
+}
+
+/* Print MARKER to gdb_stdout. */
+
+static void
+print_one_static_tracepoint_marker (int count,
+ struct static_tracepoint_marker *marker)
+{
+ struct command_line *l;
+ struct symbol *sym;
+
+ char wrap_indent[80];
+ char extra_field_indent[80];
+ struct ui_stream *stb = ui_out_stream_new (uiout);
+ struct cleanup *old_chain = make_cleanup_ui_out_stream_delete (stb);
+ struct cleanup *bkpt_chain;
+ VEC(breakpoint_p) *tracepoints;
+
+ struct symtab_and_line sal;
+
+ init_sal (&sal);
+
+ sal.pc = marker->address;
+
+ tracepoints = static_tracepoints_here (marker->address);
+
+ bkpt_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "marker");
+
+ /* A counter field to help readability. This is not a stable
+ identifier! */
+ ui_out_field_int (uiout, "count", count);
+
+ ui_out_field_string (uiout, "marker-id", marker->str_id);
+
+ ui_out_field_fmt (uiout, "enabled", "%c",
+ !VEC_empty (breakpoint_p, tracepoints) ? 'y' : 'n');
+ ui_out_spaces (uiout, 2);
+
+ strcpy (wrap_indent, " ");
+
+ if (gdbarch_addr_bit (marker->gdbarch) <= 32)
+ strcat (wrap_indent, " ");
+ else
+ strcat (wrap_indent, " ");
+
+ strcpy (extra_field_indent, " ");
+
+ ui_out_field_core_addr (uiout, "addr", marker->gdbarch, marker->address);
+
+ sal = find_pc_line (marker->address, 0);
+ sym = find_pc_sect_function (marker->address, NULL);
+ if (sym)
+ {
+ ui_out_text (uiout, "in ");
+ ui_out_field_string (uiout, "func",
+ SYMBOL_PRINT_NAME (sym));
+ ui_out_wrap_hint (uiout, wrap_indent);
+ ui_out_text (uiout, " at ");
+ }
+ else
+ ui_out_field_skip (uiout, "func");
+
+ if (sal.symtab != NULL)
+ {
+ ui_out_field_string (uiout, "file", sal.symtab->filename);
+ ui_out_text (uiout, ":");
+
+ if (ui_out_is_mi_like_p (uiout))
+ {
+ char *fullname = symtab_to_fullname (sal.symtab);
+
+ if (fullname)
+ ui_out_field_string (uiout, "fullname", fullname);
+ }
+ else
+ ui_out_field_skip (uiout, "fullname");
+
+ ui_out_field_int (uiout, "line", sal.line);
+ }
+ else
+ {
+ ui_out_field_skip (uiout, "fullname");
+ ui_out_field_skip (uiout, "line");
+ }
+
+ ui_out_text (uiout, "\n");
+ ui_out_text (uiout, extra_field_indent);
+ ui_out_text (uiout, _("Data: \""));
+ ui_out_field_string (uiout, "extra-data", marker->extra);
+ ui_out_text (uiout, "\"\n");
+
+ if (!VEC_empty (breakpoint_p, tracepoints))
+ {
+ struct cleanup *cleanup_chain;
+ int ix;
+ struct breakpoint *b;
+
+ cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout,
+ "tracepoints-at");
+
+ ui_out_text (uiout, extra_field_indent);
+ ui_out_text (uiout, _("Probed by static tracepoints: "));
+ for (ix = 0; VEC_iterate(breakpoint_p, tracepoints, ix, b); ix++)
+ {
+ if (ix > 0)
+ ui_out_text (uiout, ", ");
+ ui_out_text (uiout, "#");
+ ui_out_field_int (uiout, "tracepoint-id", b->number);
+ }
+
+ do_cleanups (cleanup_chain);
+
+ if (ui_out_is_mi_like_p (uiout))
+ ui_out_field_int (uiout, "number-of-tracepoints",
+ VEC_length(breakpoint_p, tracepoints));
+ else
+ ui_out_text (uiout, "\n");
+ }
+ VEC_free (breakpoint_p, tracepoints);
+
+ do_cleanups (bkpt_chain);
+ do_cleanups (old_chain);
+}
+
+static void
+info_static_tracepoint_markers_command (char *arg, int from_tty)
+{
+ VEC(static_tracepoint_marker_p) *markers;
+ struct cleanup *old_chain;
+ struct static_tracepoint_marker *marker;
+ int i;
+
+ old_chain
+ = make_cleanup_ui_out_table_begin_end (uiout, 5, -1,
+ "StaticTracepointMarkersTable");
+
+ ui_out_table_header (uiout, 7, ui_left, "counter", "Cnt");
+
+ ui_out_table_header (uiout, 40, ui_left, "marker-id", "ID");
+
+ ui_out_table_header (uiout, 3, ui_left, "enabled", "Enb");
+ if (gdbarch_addr_bit (target_gdbarch) <= 32)
+ ui_out_table_header (uiout, 10, ui_left, "addr", "Address");
+ else
+ ui_out_table_header (uiout, 18, ui_left, "addr", "Address");
+ ui_out_table_header (uiout, 40, ui_noalign, "what", "What");
+
+ ui_out_table_body (uiout);
+
+ markers = target_static_tracepoint_markers_by_strid (NULL);
+ make_cleanup (VEC_cleanup (static_tracepoint_marker_p), &markers);
+
+ for (i = 0;
+ VEC_iterate (static_tracepoint_marker_p,
+ markers, i, marker);
+ i++)
+ {
+ print_one_static_tracepoint_marker (i + 1, marker);
+ release_static_tracepoint_marker (marker);
+ }
+
+ do_cleanups (old_chain);
+}
+
+/* The $_sdata convenience variable is a bit special. We don't know
+ for sure type of the value until we actually have a chance to fetch
+ the data --- the size of the object depends on what has been
+ collected. We solve this by making $_sdata be an internalvar that
+ creates a new value on access. */
+
+/* Return a new value with the correct type for the sdata object of
+ the current trace frame. Return a void value if there's no object
+ available. */
+
+static struct value *
+sdata_make_value (struct gdbarch *gdbarch, struct internalvar *var)
+{
+ LONGEST size;
+ gdb_byte *buf;
+
+ /* We need to read the whole object before we know its size. */
+ size = target_read_alloc (¤t_target,
+ TARGET_OBJECT_STATIC_TRACE_DATA,
+ NULL, &buf);
+ if (size >= 0)
+ {
+ struct value *v;
+ struct type *type;
+
+ type = init_vector_type (builtin_type (gdbarch)->builtin_true_char,
+ size);
+ v = allocate_value (type);
+ memcpy (value_contents_raw (v), buf, size);
+ xfree (buf);
+ return v;
+ }
+ else
+ return allocate_value (builtin_type (gdbarch)->builtin_void);
+}
+
+#if !defined(HAVE_LIBEXPAT)
+
+struct traceframe_info *
+parse_traceframe_info (const char *tframe_info)
+{
+ static int have_warned;
+
+ if (!have_warned)
+ {
+ have_warned = 1;
+ warning (_("Can not parse XML trace frame info; XML support "
+ "was disabled at compile time"));
+ }
+
+ return NULL;
+}
+
+#else /* HAVE_LIBEXPAT */
+
+#include "xml-support.h"
+
+/* Handle the start of a <memory> element. */
+
+static void
+traceframe_info_start_memory (struct gdb_xml_parser *parser,
+ const struct gdb_xml_element *element,
+ void *user_data, VEC(gdb_xml_value_s) *attributes)
+{
+ struct traceframe_info *info = user_data;
+ struct mem_range *r = VEC_safe_push (mem_range_s, info->memory, NULL);
+ ULONGEST *start_p, *length_p;
+
+ start_p = xml_find_attribute (attributes, "start")->value;
+ length_p = xml_find_attribute (attributes, "length")->value;
+
+ r->start = *start_p;
+ r->length = *length_p;
+}
+
+/* Discard the constructed trace frame info (if an error occurs). */
+
+static void
+free_result (void *p)
+{
+ struct traceframe_info *result = p;
+
+ free_traceframe_info (result);
+}
+
+/* The allowed elements and attributes for an XML memory map. */
+
+static const struct gdb_xml_attribute memory_attributes[] = {
+ { "start", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { "length", GDB_XML_AF_NONE, gdb_xml_parse_attr_ulongest, NULL },
+ { NULL, GDB_XML_AF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element traceframe_info_children[] = {
+ { "memory", memory_attributes, NULL,
+ GDB_XML_EF_REPEATABLE | GDB_XML_EF_OPTIONAL,
+ traceframe_info_start_memory, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+static const struct gdb_xml_element traceframe_info_elements[] = {
+ { "traceframe-info", NULL, traceframe_info_children, GDB_XML_EF_NONE,
+ NULL, NULL },
+ { NULL, NULL, NULL, GDB_XML_EF_NONE, NULL, NULL }
+};
+
+/* Parse a traceframe-info XML document. */
+
+struct traceframe_info *
+parse_traceframe_info (const char *tframe_info)
+{
+ struct traceframe_info *result;
+ struct cleanup *back_to;
+
+ result = XCNEW (struct traceframe_info);
+ back_to = make_cleanup (free_result, result);
+
+ if (gdb_xml_parse_quick (_("trace frame info"),
+ "traceframe-info.dtd", traceframe_info_elements,
+ tframe_info, result) == 0)
+ {
+ /* Parsed successfully, keep the result. */
+ discard_cleanups (back_to);
+
+ return result;
+ }
+
+ do_cleanups (back_to);
+ return NULL;
+}
+
+#endif /* HAVE_LIBEXPAT */
+
+/* Returns the traceframe_info object for the current traceframe.
+ This is where we avoid re-fetching the object from the target if we
+ already have it cached. */
+
+struct traceframe_info *
+get_traceframe_info (void)
+{
+ if (traceframe_info == NULL)
+ traceframe_info = target_traceframe_info ();
+
+ return traceframe_info;
+}
+
+/* If the target supports the query, return in RESULT the set of
+ collected memory in the current traceframe, found within the LEN
+ bytes range starting at MEMADDR. Returns true if the target
+ supports the query, otherwise returns false, and RESULT is left
+ undefined. */
+
+int
+traceframe_available_memory (VEC(mem_range_s) **result,
+ CORE_ADDR memaddr, ULONGEST len)
+{
+ struct traceframe_info *info = get_traceframe_info ();
+
+ if (info != NULL)
+ {
+ struct mem_range *r;
+ int i;
+
+ *result = NULL;
+
+ for (i = 0; VEC_iterate (mem_range_s, info->memory, i, r); i++)
+ if (mem_ranges_overlap (r->start, r->length, memaddr, len))
+ {
+ ULONGEST lo1, hi1, lo2, hi2;
+ struct mem_range *nr;
+
+ lo1 = memaddr;
+ hi1 = memaddr + len;
+
+ lo2 = r->start;
+ hi2 = r->start + r->length;
+
+ nr = VEC_safe_push (mem_range_s, *result, NULL);
+
+ nr->start = max (lo1, lo2);
+ nr->length = min (hi1, hi2) - nr->start;
+ }
+
+ normalize_mem_ranges (*result);
+ return 1;
+ }
+
+ return 0;
+}
+
/* module initialization */
void
_initialize_tracepoint (void)
{
struct cmd_list_element *c;
+ /* Explicitly create without lookup, since that tries to create a
+ value with a void typed value, and when we get here, gdbarch
+ isn't initialized yet. At this point, we're quite sure there
+ isn't another convenience variable of the same name. */
+ create_internalvar_type_lazy ("_sdata", sdata_make_value);
+
traceframe_number = -1;
tracepoint_number = -1;
Delete one or more trace state variables.\n\
Arguments are the names of the variables to delete.\n\
If no arguments are supplied, delete all variables."), &deletelist);
- /* FIXME add a trace variable completer */
+ /* FIXME add a trace variable completer. */
add_info ("tvariables", tvariables_info, _("\
Status of trace state variables and their values.\n\
+"));
+
+ add_info ("static-tracepoint-markers",
+ info_static_tracepoint_markers_command, _("\
+List target static tracepoints markers.\n\
"));
add_prefix_cmd ("tfind", class_trace, trace_find_command, _("\
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\
+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);
$regs -- all registers.\n\
$args -- all function arguments.\n\
$locals -- all variables local to the block/function scope.\n\
+ $_sdata -- static tracepoint data (ignored for non-static tracepoints).\n\
Note: this command can only be used in a tracepoint \"actions\" list."));
add_com ("teval", class_trace, teval_pseudocommand, _("\
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\
+Tracepoint actions may include collecting of specified data,\n\
+single-stepping, or enabling/disabling other tracepoints,\n\
depending on target's capabilities."));
default_collect = xstrdup ("");
projects / deliverable / binutils-gdb.git / blobdiff