* printcmd.c (print_frame_nameless_args): Moved to "stack.c".
(print_frame_args): Moved to "stack.c".
* stack.c: Include "gdb_assert.h".
(print_frame_nameless_args): Moved from "printcmd.c", made static.
(print_frame_args): Moved from "printcmd.c".
* frame.h (print_frame_args): Delete declaration.
* Makefile.in (stack.o): Update dependencies.
+2003-06-09 Andrew Cagney <cagney@redhat.com>
+
+ * printcmd.c (print_frame_nameless_args): Moved to "stack.c".
+ (print_frame_args): Moved to "stack.c".
+ * stack.c: Include "gdb_assert.h".
+ (print_frame_nameless_args): Moved from "printcmd.c", made static.
+ (print_frame_args): Moved from "printcmd.c".
+ * frame.h (print_frame_args): Delete declaration.
+ * Makefile.in (stack.o): Update dependencies.
+
2003-06-08 Andrew Cagney <cagney@redhat.com>
* frame.c (get_prev_frame): Remove reference to
stack.o: stack.c $(defs_h) $(gdb_string_h) $(value_h) $(symtab_h) \
$(gdbtypes_h) $(expression_h) $(language_h) $(frame_h) $(gdbcmd_h) \
$(gdbcore_h) $(target_h) $(source_h) $(breakpoint_h) $(demangle_h) \
- $(inferior_h) $(annotate_h) $(ui_out_h) $(block_h) $(stack_h)
+ $(inferior_h) $(annotate_h) $(ui_out_h) $(block_h) $(stack_h) \
+ $(gdb_assert_h)
standalone.o: standalone.c $(gdb_stat_h) $(defs_h) $(symtab_h) $(frame_h) \
$(inferior_h) $(gdb_wait_h)
std-regs.o: std-regs.c $(defs_h) $(builtin_regs_h) $(frame_h) $(gdbtypes_h) \
extern int frameless_look_for_prologue (struct frame_info *);
-extern void print_frame_args (struct symbol *, struct frame_info *,
- int, struct ui_file *);
-
extern struct frame_info *find_relative_frame (struct frame_info *, int *);
extern void show_and_print_stack_frame (struct frame_info *fi, int level,
static void printf_command (char *, int);
-static void print_frame_nameless_args (struct frame_info *, long,
- int, int, struct ui_file *);
-
static void display_info (char *, int);
static void do_one_display (struct display *);
value_print (val, stream, 0, Val_pretty_default);
}
-/* Print the arguments of a stack frame, given the function FUNC
- running in that frame (as a symbol), the info on the frame,
- and the number of args according to the stack frame (or -1 if unknown). */
-
-/* References here and elsewhere to "number of args according to the
- stack frame" appear in all cases to refer to "number of ints of args
- according to the stack frame". At least for VAX, i386, isi. */
-
-void
-print_frame_args (struct symbol *func, struct frame_info *fi, int num,
- struct ui_file *stream)
-{
- struct block *b = NULL;
- int first = 1;
- register int i;
- register struct symbol *sym;
- struct value *val;
- /* Offset of next stack argument beyond the one we have seen that is
- at the highest offset.
- -1 if we haven't come to a stack argument yet. */
- long highest_offset = -1;
- int arg_size;
- /* Number of ints of arguments that we have printed so far. */
- int args_printed = 0;
- struct cleanup *old_chain, *list_chain;
- struct ui_stream *stb;
-
- stb = ui_out_stream_new (uiout);
- old_chain = make_cleanup_ui_out_stream_delete (stb);
-
- if (func)
- {
- b = SYMBOL_BLOCK_VALUE (func);
- /* Function blocks are order sensitive, and thus should not be
- hashed. */
- gdb_assert (BLOCK_HASHTABLE (b) == 0);
-
- ALL_BLOCK_SYMBOLS (b, i, sym)
- {
- QUIT;
-
- /* Keep track of the highest stack argument offset seen, and
- skip over any kinds of symbols we don't care about. */
-
- switch (SYMBOL_CLASS (sym))
- {
- case LOC_ARG:
- case LOC_REF_ARG:
- {
- long current_offset = SYMBOL_VALUE (sym);
- arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym));
-
- /* Compute address of next argument by adding the size of
- this argument and rounding to an int boundary. */
- current_offset =
- ((current_offset + arg_size + sizeof (int) - 1)
- & ~(sizeof (int) - 1));
-
- /* If this is the highest offset seen yet, set highest_offset. */
- if (highest_offset == -1
- || (current_offset > highest_offset))
- highest_offset = current_offset;
-
- /* Add the number of ints we're about to print to args_printed. */
- args_printed += (arg_size + sizeof (int) - 1) / sizeof (int);
- }
-
- /* We care about types of symbols, but don't need to keep track of
- stack offsets in them. */
- case LOC_REGPARM:
- case LOC_REGPARM_ADDR:
- case LOC_LOCAL_ARG:
- case LOC_BASEREG_ARG:
- case LOC_COMPUTED_ARG:
- break;
-
- /* Other types of symbols we just skip over. */
- default:
- continue;
- }
-
- /* We have to look up the symbol because arguments can have
- two entries (one a parameter, one a local) and the one we
- want is the local, which lookup_symbol will find for us.
- This includes gcc1 (not gcc2) on the sparc when passing a
- small structure and gcc2 when the argument type is float
- and it is passed as a double and converted to float by
- the prologue (in the latter case the type of the LOC_ARG
- symbol is double and the type of the LOC_LOCAL symbol is
- float). */
- /* But if the parameter name is null, don't try it.
- Null parameter names occur on the RS/6000, for traceback tables.
- FIXME, should we even print them? */
-
- if (*DEPRECATED_SYMBOL_NAME (sym))
- {
- struct symbol *nsym;
- nsym = lookup_symbol
- (DEPRECATED_SYMBOL_NAME (sym),
- b, VAR_DOMAIN, (int *) NULL, (struct symtab **) NULL);
- if (SYMBOL_CLASS (nsym) == LOC_REGISTER)
- {
- /* There is a LOC_ARG/LOC_REGISTER pair. This means that
- it was passed on the stack and loaded into a register,
- or passed in a register and stored in a stack slot.
- GDB 3.x used the LOC_ARG; GDB 4.0-4.11 used the LOC_REGISTER.
-
- Reasons for using the LOC_ARG:
- (1) because find_saved_registers may be slow for remote
- debugging,
- (2) because registers are often re-used and stack slots
- rarely (never?) are. Therefore using the stack slot is
- much less likely to print garbage.
-
- Reasons why we might want to use the LOC_REGISTER:
- (1) So that the backtrace prints the same value as
- "print foo". I see no compelling reason why this needs
- to be the case; having the backtrace print the value which
- was passed in, and "print foo" print the value as modified
- within the called function, makes perfect sense to me.
-
- Additional note: It might be nice if "info args" displayed
- both values.
- One more note: There is a case with sparc structure passing
- where we need to use the LOC_REGISTER, but this is dealt with
- by creating a single LOC_REGPARM in symbol reading. */
-
- /* Leave sym (the LOC_ARG) alone. */
- ;
- }
- else
- sym = nsym;
- }
-
- /* Print the current arg. */
- if (!first)
- ui_out_text (uiout, ", ");
- ui_out_wrap_hint (uiout, " ");
-
- annotate_arg_begin ();
-
- list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
- fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym),
- SYMBOL_LANGUAGE (sym), DMGL_PARAMS | DMGL_ANSI);
- ui_out_field_stream (uiout, "name", stb);
- annotate_arg_name_end ();
- ui_out_text (uiout, "=");
-
- /* 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 "recurse" to val_print because our
- standard indentation here is 4 spaces, and val_print indents
- 2 for each recurse. */
- val = read_var_value (sym, fi);
-
- annotate_arg_value (val == NULL ? NULL : VALUE_TYPE (val));
-
- if (val)
- {
- val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), 0,
- VALUE_ADDRESS (val),
- stb->stream, 0, 0, 2, Val_no_prettyprint);
- ui_out_field_stream (uiout, "value", stb);
- }
- else
- ui_out_text (uiout, "???");
-
- /* Invoke ui_out_tuple_end. */
- do_cleanups (list_chain);
-
- annotate_arg_end ();
-
- first = 0;
- }
- }
-
- /* Don't print nameless args in situations where we don't know
- enough about the stack to find them. */
- if (num != -1)
- {
- long start;
-
- if (highest_offset == -1)
- start = FRAME_ARGS_SKIP;
- else
- start = highest_offset;
-
- print_frame_nameless_args (fi, start, num - args_printed,
- first, stream);
- }
- do_cleanups (old_chain);
-}
-
-/* Print nameless args on STREAM.
- FI is the frameinfo for this frame, START is the offset
- of the first nameless arg, and NUM is the number of nameless args to
- print. FIRST is nonzero if this is the first argument (not just
- the first nameless arg). */
-
-static void
-print_frame_nameless_args (struct frame_info *fi, long start, int num,
- int first, struct ui_file *stream)
-{
- int i;
- CORE_ADDR argsaddr;
- long arg_value;
-
- for (i = 0; i < num; i++)
- {
- QUIT;
- argsaddr = get_frame_args_address (fi);
- if (!argsaddr)
- return;
- arg_value = read_memory_integer (argsaddr + start, sizeof (int));
- if (!first)
- fprintf_filtered (stream, ", ");
- fprintf_filtered (stream, "%ld", arg_value);
- first = 0;
- start += sizeof (int);
- }
-}
-\f
/* ARGSUSED */
static void
printf_command (char *arg, int from_tty)
#include "ui-out.h"
#include "block.h"
#include "stack.h"
+#include "gdb_assert.h"
/* Prototypes for exported functions. */
static int print_args_stub (void *);
+/* Print nameless args on STREAM.
+ FI is the frameinfo for this frame, START is the offset
+ of the first nameless arg, and NUM is the number of nameless args to
+ print. FIRST is nonzero if this is the first argument (not just
+ the first nameless arg). */
+
+static void
+print_frame_nameless_args (struct frame_info *fi, long start, int num,
+ int first, struct ui_file *stream)
+{
+ int i;
+ CORE_ADDR argsaddr;
+ long arg_value;
+
+ for (i = 0; i < num; i++)
+ {
+ QUIT;
+ argsaddr = get_frame_args_address (fi);
+ if (!argsaddr)
+ return;
+ arg_value = read_memory_integer (argsaddr + start, sizeof (int));
+ if (!first)
+ fprintf_filtered (stream, ", ");
+ fprintf_filtered (stream, "%ld", arg_value);
+ first = 0;
+ start += sizeof (int);
+ }
+}
+
+/* Print the arguments of a stack frame, given the function FUNC
+ running in that frame (as a symbol), the info on the frame,
+ and the number of args according to the stack frame (or -1 if unknown). */
+
+/* References here and elsewhere to "number of args according to the
+ stack frame" appear in all cases to refer to "number of ints of args
+ according to the stack frame". At least for VAX, i386, isi. */
+
+static void
+print_frame_args (struct symbol *func, struct frame_info *fi, int num,
+ struct ui_file *stream)
+{
+ struct block *b = NULL;
+ int first = 1;
+ register int i;
+ register struct symbol *sym;
+ struct value *val;
+ /* Offset of next stack argument beyond the one we have seen that is
+ at the highest offset.
+ -1 if we haven't come to a stack argument yet. */
+ long highest_offset = -1;
+ int arg_size;
+ /* Number of ints of arguments that we have printed so far. */
+ int args_printed = 0;
+ struct cleanup *old_chain, *list_chain;
+ struct ui_stream *stb;
+
+ stb = ui_out_stream_new (uiout);
+ old_chain = make_cleanup_ui_out_stream_delete (stb);
+
+ if (func)
+ {
+ b = SYMBOL_BLOCK_VALUE (func);
+ /* Function blocks are order sensitive, and thus should not be
+ hashed. */
+ gdb_assert (BLOCK_HASHTABLE (b) == 0);
+
+ ALL_BLOCK_SYMBOLS (b, i, sym)
+ {
+ QUIT;
+
+ /* Keep track of the highest stack argument offset seen, and
+ skip over any kinds of symbols we don't care about. */
+
+ switch (SYMBOL_CLASS (sym))
+ {
+ case LOC_ARG:
+ case LOC_REF_ARG:
+ {
+ long current_offset = SYMBOL_VALUE (sym);
+ arg_size = TYPE_LENGTH (SYMBOL_TYPE (sym));
+
+ /* Compute address of next argument by adding the size of
+ this argument and rounding to an int boundary. */
+ current_offset =
+ ((current_offset + arg_size + sizeof (int) - 1)
+ & ~(sizeof (int) - 1));
+
+ /* If this is the highest offset seen yet, set highest_offset. */
+ if (highest_offset == -1
+ || (current_offset > highest_offset))
+ highest_offset = current_offset;
+
+ /* Add the number of ints we're about to print to args_printed. */
+ args_printed += (arg_size + sizeof (int) - 1) / sizeof (int);
+ }
+
+ /* We care about types of symbols, but don't need to keep track of
+ stack offsets in them. */
+ case LOC_REGPARM:
+ case LOC_REGPARM_ADDR:
+ case LOC_LOCAL_ARG:
+ case LOC_BASEREG_ARG:
+ case LOC_COMPUTED_ARG:
+ break;
+
+ /* Other types of symbols we just skip over. */
+ default:
+ continue;
+ }
+
+ /* We have to look up the symbol because arguments can have
+ two entries (one a parameter, one a local) and the one we
+ want is the local, which lookup_symbol will find for us.
+ This includes gcc1 (not gcc2) on the sparc when passing a
+ small structure and gcc2 when the argument type is float
+ and it is passed as a double and converted to float by
+ the prologue (in the latter case the type of the LOC_ARG
+ symbol is double and the type of the LOC_LOCAL symbol is
+ float). */
+ /* But if the parameter name is null, don't try it.
+ Null parameter names occur on the RS/6000, for traceback tables.
+ FIXME, should we even print them? */
+
+ if (*DEPRECATED_SYMBOL_NAME (sym))
+ {
+ struct symbol *nsym;
+ nsym = lookup_symbol
+ (DEPRECATED_SYMBOL_NAME (sym),
+ b, VAR_DOMAIN, (int *) NULL, (struct symtab **) NULL);
+ if (SYMBOL_CLASS (nsym) == LOC_REGISTER)
+ {
+ /* There is a LOC_ARG/LOC_REGISTER pair. This means that
+ it was passed on the stack and loaded into a register,
+ or passed in a register and stored in a stack slot.
+ GDB 3.x used the LOC_ARG; GDB 4.0-4.11 used the LOC_REGISTER.
+
+ Reasons for using the LOC_ARG:
+ (1) because find_saved_registers may be slow for remote
+ debugging,
+ (2) because registers are often re-used and stack slots
+ rarely (never?) are. Therefore using the stack slot is
+ much less likely to print garbage.
+
+ Reasons why we might want to use the LOC_REGISTER:
+ (1) So that the backtrace prints the same value as
+ "print foo". I see no compelling reason why this needs
+ to be the case; having the backtrace print the value which
+ was passed in, and "print foo" print the value as modified
+ within the called function, makes perfect sense to me.
+
+ Additional note: It might be nice if "info args" displayed
+ both values.
+ One more note: There is a case with sparc structure passing
+ where we need to use the LOC_REGISTER, but this is dealt with
+ by creating a single LOC_REGPARM in symbol reading. */
+
+ /* Leave sym (the LOC_ARG) alone. */
+ ;
+ }
+ else
+ sym = nsym;
+ }
+
+ /* Print the current arg. */
+ if (!first)
+ ui_out_text (uiout, ", ");
+ ui_out_wrap_hint (uiout, " ");
+
+ annotate_arg_begin ();
+
+ list_chain = make_cleanup_ui_out_tuple_begin_end (uiout, NULL);
+ fprintf_symbol_filtered (stb->stream, SYMBOL_PRINT_NAME (sym),
+ SYMBOL_LANGUAGE (sym), DMGL_PARAMS | DMGL_ANSI);
+ ui_out_field_stream (uiout, "name", stb);
+ annotate_arg_name_end ();
+ ui_out_text (uiout, "=");
+
+ /* 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 "recurse" to val_print because our
+ standard indentation here is 4 spaces, and val_print indents
+ 2 for each recurse. */
+ val = read_var_value (sym, fi);
+
+ annotate_arg_value (val == NULL ? NULL : VALUE_TYPE (val));
+
+ if (val)
+ {
+ val_print (VALUE_TYPE (val), VALUE_CONTENTS (val), 0,
+ VALUE_ADDRESS (val),
+ stb->stream, 0, 0, 2, Val_no_prettyprint);
+ ui_out_field_stream (uiout, "value", stb);
+ }
+ else
+ ui_out_text (uiout, "???");
+
+ /* Invoke ui_out_tuple_end. */
+ do_cleanups (list_chain);
+
+ annotate_arg_end ();
+
+ first = 0;
+ }
+ }
+
+ /* Don't print nameless args in situations where we don't know
+ enough about the stack to find them. */
+ if (num != -1)
+ {
+ long start;
+
+ if (highest_offset == -1)
+ start = FRAME_ARGS_SKIP;
+ else
+ start = highest_offset;
+
+ print_frame_nameless_args (fi, start, num - args_printed,
+ first, stream);
+ }
+ do_cleanups (old_chain);
+}
+
/* Pass the args the way catch_errors wants them. */
static int
projects / external / binutils.git / commitdiff