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* remote.c (target_resume_hook, target_wait_loop_hook): New 

globals.
 	(remote_resume, remote_wait): Use them.
	* d10v-tdep.c: Set the above hooks.
	(tracesource): New GDB variable, controls source display in
 	traces.
	(display_trace): Find and display source line if requested.
	(trace_info): Mention empty trace buffer if appropriate.
	(tdisassemble_command): Robustify argument handling.
gdb-4_18-branch
Stan Shebs 30 years ago
parent
94626fd155
commit
a9b9b4071f
2 changed files with 87 additions and 40 deletions
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  1. 12
      gdb/ChangeLog
  2. 115
      gdb/d10v-tdep.c

12
gdb/ChangeLog
View File

@ -1,4 +1,14 @@
Sun Mar 23 12:47:13 1997 Stan Shebs <shebs@andros.cygnus.com>
Sun Mar 23 15:43:27 1997 Stan Shebs <shebs@andros.cygnus.com>
* remote.c (target_resume_hook, target_wait_loop_hook): New
globals.
(remote_resume, remote_wait): Use them.
* d10v-tdep.c: Set the above hooks.
(tracesource): New GDB variable, controls source display in
traces.
(display_trace): Find and display source line if requested.
(trace_info): Mention empty trace buffer if appropriate.
(tdisassemble_command): Robustify argument handling.
* configure.host: Remove extra bogus Linux case.

115
gdb/d10v-tdep.c
View File

@ -1,14 +1,18 @@
/* Target-dependent code for MItsubishi D10V, for GDB.
Copyright (C) 1996 Free Software Foundation, Inc.
/* Target-dependent code for Mitsubishi D10V, for GDB.
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
@ -29,11 +33,12 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "symfile.h"
#include "objfiles.h"
void d10v_frame_find_saved_regs PARAMS ((struct frame_info *fi, struct frame_saved_regs *fsr));
void d10v_frame_find_saved_regs PARAMS ((struct frame_info *fi,
struct frame_saved_regs *fsr));
static void d10v_pop_dummy_frame PARAMS ((struct frame_info *fi));
/* Discard from the stack the innermost frame,
restoring all saved registers. */
/* Discard from the stack the innermost frame, restoring all saved
registers. */
void
d10v_pop_frame ()
@ -650,7 +655,7 @@ d10v_extract_return_value (valtype, regbuf, valbuf)
/* The following code implements access to, and display of, the D10V's
instruction trace buffer. The buffer consists of 64K or more
4-byte words of data, of which each words includes an 8-bit count,
and 8-bit segment number, and a 16-bit instruction address.
an 8-bit segment number, and a 16-bit instruction address.
In theory, the trace buffer is continuously capturing instruction
data that the CPU presents on its "debug bus", but in practice, the
@ -691,8 +696,14 @@ static int tracing;
static CORE_ADDR last_pc;
/* True when trace output should be displayed whenever program stops. */
static int trace_display;
/* True when trace listing should include source lines. */
static int default_trace_show_source = 1;
struct trace_buffer {
int size;
short *counts;
@ -733,15 +744,20 @@ trace_info (args, from_tty)
{
int i;
printf_filtered ("%d entries in trace buffer:\n", trace_data.size);
for (i = 0; i < trace_data.size; ++i)
if (trace_data.size)
{
printf_filtered ("%d: %d instruction%s at 0x%x\n",
i, trace_data.counts[i],
(trace_data.counts[i] == 1 ? "" : "s"),
trace_data.addrs[i]);
printf_filtered ("%d entries in trace buffer:\n", trace_data.size);
for (i = 0; i < trace_data.size; ++i)
{
printf_filtered ("%d: %d instruction%s at 0x%x\n",
i, trace_data.counts[i],
(trace_data.counts[i] == 1 ? "" : "s"),
trace_data.addrs[i]);
}
}
else
printf_filtered ("No entries in trace buffer.\n");
printf_filtered ("Tracing is currently %s.\n", (tracing ? "on" : "off"));
}
@ -792,11 +808,6 @@ d10v_eva_get_trace_data ()
last_trace = read_memory_unsigned_integer (DBBC_ADDR, 2) << 2;
#if 0
printf_filtered("Last pc is %x, is now %x\n",
last_pc, read_register (PC_REGNUM));
#endif
/* Collect buffer contents from the target, stopping when we reach
the word recorded when execution resumed. */
@ -807,12 +818,6 @@ d10v_eva_get_trace_data ()
trace_word =
read_memory_unsigned_integer (TRACE_BUFFER_BASE + last_trace, 4);
trace_addr = trace_word & 0xffff;
#if 0
trace_seg = (trace_word >> 16) & 0xff;
trace_cnt = (trace_word >> 24) & 0xff;
printf_filtered("Trace word at %x is %x %x %x\n", last_trace,
trace_cnt, trace_seg, trace_addr);
#endif
last_trace -= 4;
/* Ignore an apparently nonsensical entry. */
if (trace_addr == 0xffd5)
@ -844,14 +849,6 @@ d10v_eva_get_trace_data ()
free (tmpspace);
#if 0
for (i = 0; i < trace_data.size; ++i)
{
printf_filtered("%d insns after %x\n",
trace_data.counts[i], trace_data.addrs[i]);
}
#endif
if (trace_display)
display_trace (oldsize, trace_data.size);
}
@ -881,14 +878,11 @@ tdisassemble_command (arg, from_tty)
*space_index = '\0';
low = parse_and_eval_address (arg);
high = parse_and_eval_address (space_index + 1);
if (high < low)
high = low;
}
printf_filtered ("Dump of trace ");
printf_filtered ("from ");
print_address_numeric (low, 1, gdb_stdout);
printf_filtered (" to ");
print_address_numeric (high, 1, gdb_stdout);
printf_filtered (":\n");
printf_filtered ("Dump of trace from %d to %d:\n", low, high);
display_trace (low, high);
@ -900,9 +894,19 @@ static void
display_trace (low, high)
int low, high;
{
int i, count;
int i, count, trace_show_source, first, suppress;
CORE_ADDR next_address;
trace_show_source = default_trace_show_source;
if (!have_full_symbols () && !have_partial_symbols())
{
trace_show_source = 0;
printf_filtered ("No symbol table is loaded. Use the \"file\" command.\n");
printf_filtered ("Trace will not display any source.\n");
}
first = 1;
suppress = 0;
for (i = low; i < high; ++i)
{
next_address = trace_data.addrs[i];
@ -910,6 +914,29 @@ display_trace (low, high)
while (count-- > 0)
{
QUIT;
if (trace_show_source)
{
struct symtab_and_line sal, sal_prev;
sal_prev = find_pc_line (next_address - 4, 0);
sal = find_pc_line (next_address, 0);
if (sal.symtab)
{
if (first || sal.line != sal_prev.line)
print_source_lines (sal.symtab, sal.line, sal.line + 1, 0);
suppress = 0;
}
else
{
if (!suppress)
/* FIXME-32x64--assumes sal.pc fits in long. */
printf_filtered ("No source file for address %s.\n",
local_hex_string((unsigned long) sal.pc));
suppress = 1;
}
}
first = 0;
print_address (next_address, gdb_stdout);
printf_filtered (":");
printf_filtered ("\t");
@ -921,11 +948,17 @@ display_trace (low, high)
}
}
extern void (*target_resume_hook) PARAMS ((void));
extern void (*target_wait_loop_hook) PARAMS ((void));
void
_initialize_d10v_tdep ()
{
tm_print_insn = print_insn_d10v;
target_resume_hook = d10v_eva_prepare_to_trace;
target_wait_loop_hook = d10v_eva_get_trace_data;
add_com ("regs", class_vars, show_regs, "Print all registers");
add_com ("trace", class_support, trace_command,
@ -946,5 +979,9 @@ as reported by info trace (NOT addresses!).");
var_integer, (char *)&trace_display,
"Set automatic display of trace.\n", &setlist),
&showlist);
add_show_from_set (add_set_cmd ("tracesource", no_class,
var_integer, (char *)&default_trace_show_source,
"Set display of source code with trace.\n", &setlist),
&showlist);
}

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