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* findvar.c (read_var_value): Never return NULL, throw an error
	instead.  Update the function comment.  State symbol name in the error
	messages.
	* python/py-frame.c (frapy_read_var): Remove handling of NULL from
	read_var_value.
	* stack.c (print_frame_args): Likewise.
	* valops.c (value_of_variable): Likewise.
This commit is contained in:
Jan Kratochvil
2011-09-08 15:26:08 +00:00
parent b99b5f66e1
commit 8afd712c6f
5 changed files with 41 additions and 43 deletions
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37
gdb/stack.c
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@ -330,6 +330,9 @@ print_frame_args (struct symbol *func, struct frame_info *frame,
TRY_CATCH (except, RETURN_MASK_ERROR)
{
const struct language_defn *language;
struct value_print_options opts;
/* Avoid value_print because it will deref ref parameters.
We just want to print their addresses. Print ??? for
args whose address we do not know. We pass 2 as
@ -338,29 +341,21 @@ print_frame_args (struct symbol *func, struct frame_info *frame,
recurse. */
val = read_var_value (sym, frame);
annotate_arg_value (val == NULL ? NULL : value_type (val));
annotate_arg_value (value_type (val));
if (val)
{
const struct language_defn *language;
struct value_print_options opts;
/* Use the appropriate language to display our symbol,
unless the user forced the language to a specific
language. */
if (language_mode == language_mode_auto)
language = language_def (SYMBOL_LANGUAGE (sym));
else
language = current_language;
get_raw_print_options (&opts);
opts.deref_ref = 0;
opts.summary = summary;
common_val_print (val, stb->stream, 2, &opts, language);
ui_out_field_stream (uiout, "value", stb);
}
/* Use the appropriate language to display our symbol,
unless the user forced the language to a specific
language. */
if (language_mode == language_mode_auto)
language = language_def (SYMBOL_LANGUAGE (sym));
else
ui_out_text (uiout, "???");
language = current_language;
get_raw_print_options (&opts);
opts.deref_ref = 0;
opts.summary = summary;
common_val_print (val, stb->stream, 2, &opts, language);
ui_out_field_stream (uiout, "value", stb);
}
if (except.reason < 0)
{