/* 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, struct agent_reqs *areqs)
+{
+ /* All of the "flaws" are serious bytecode generation issues that
+ should never occur. */
+ if (areqs->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 (areqs->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 (areqs->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;
+ struct agent_reqs areqs;
/* 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 */
{
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)
{
- 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"));
+ error (_("Expression is too complicated."));
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"));
+ report_agent_reqs_errors (aexpr, &areqs);
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 */
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, &areqs);
+ (void) make_cleanup (xfree, areqs.reg_mask);
+
+ report_agent_reqs_errors (aexpr, &areqs);
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 */
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 {
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"));
+
+ report_agent_reqs_errors (aexpr, &areqs);
discard_cleanups (old_chain1);
add_aexpr (collect, aexpr);
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"));
+ report_agent_reqs_errors (aexpr, &areqs);
discard_cleanups (old_chain1);
add_aexpr (collect, aexpr);
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"));
+ report_agent_reqs_errors (aexpr, &areqs);
discard_cleanups (old_chain1);
/* Even though we're not officially collecting, add
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 = t->commands->commands;
+ default_collect_action->line = line;
+ actions = default_collect_action;
}
encode_actions_1 (actions, t, tloc, frame_reg, frame_offset,
&tracepoint_list, &stepping_list);
projects / thirdparty / binutils-gdb.git / commitdiff
