mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-05 02:06:40 +00:00
8228e353d8
So they are all in one place. The following patch will move serial & parallel declarations to the respective headers. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
165 lines
4.0 KiB
C
Executable File
165 lines
4.0 KiB
C
Executable File
/*
|
|
* replay-char.c
|
|
*
|
|
* Copyright (c) 2010-2016 Institute for System Programming
|
|
* of the Russian Academy of Sciences.
|
|
*
|
|
* This work is licensed under the terms of the GNU GPL, version 2 or later.
|
|
* See the COPYING file in the top-level directory.
|
|
*
|
|
*/
|
|
|
|
#include "qemu/osdep.h"
|
|
#include "qemu/error-report.h"
|
|
#include "sysemu/replay.h"
|
|
#include "replay-internal.h"
|
|
#include "sysemu/sysemu.h"
|
|
#include "chardev/char.h"
|
|
|
|
/* Char drivers that generate qemu_chr_be_write events
|
|
that should be saved into the log. */
|
|
static Chardev **char_drivers;
|
|
static int drivers_count;
|
|
|
|
/* Char event attributes. */
|
|
typedef struct CharEvent {
|
|
int id;
|
|
uint8_t *buf;
|
|
size_t len;
|
|
} CharEvent;
|
|
|
|
static int find_char_driver(Chardev *chr)
|
|
{
|
|
int i = 0;
|
|
for ( ; i < drivers_count ; ++i) {
|
|
if (char_drivers[i] == chr) {
|
|
return i;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
void replay_register_char_driver(Chardev *chr)
|
|
{
|
|
if (replay_mode == REPLAY_MODE_NONE) {
|
|
return;
|
|
}
|
|
char_drivers = g_realloc(char_drivers,
|
|
sizeof(*char_drivers) * (drivers_count + 1));
|
|
char_drivers[drivers_count++] = chr;
|
|
}
|
|
|
|
void replay_chr_be_write(Chardev *s, uint8_t *buf, int len)
|
|
{
|
|
CharEvent *event = g_malloc0(sizeof(CharEvent));
|
|
|
|
event->id = find_char_driver(s);
|
|
if (event->id < 0) {
|
|
fprintf(stderr, "Replay: cannot find char driver\n");
|
|
exit(1);
|
|
}
|
|
event->buf = g_malloc(len);
|
|
memcpy(event->buf, buf, len);
|
|
event->len = len;
|
|
|
|
replay_add_event(REPLAY_ASYNC_EVENT_CHAR_READ, event, NULL, 0);
|
|
}
|
|
|
|
void replay_event_char_read_run(void *opaque)
|
|
{
|
|
CharEvent *event = (CharEvent *)opaque;
|
|
|
|
qemu_chr_be_write_impl(char_drivers[event->id], event->buf,
|
|
(int)event->len);
|
|
|
|
g_free(event->buf);
|
|
g_free(event);
|
|
}
|
|
|
|
void replay_event_char_read_save(void *opaque)
|
|
{
|
|
CharEvent *event = (CharEvent *)opaque;
|
|
|
|
replay_put_byte(event->id);
|
|
replay_put_array(event->buf, event->len);
|
|
}
|
|
|
|
void *replay_event_char_read_load(void)
|
|
{
|
|
CharEvent *event = g_malloc0(sizeof(CharEvent));
|
|
|
|
event->id = replay_get_byte();
|
|
replay_get_array_alloc(&event->buf, &event->len);
|
|
|
|
return event;
|
|
}
|
|
|
|
void replay_char_write_event_save(int res, int offset)
|
|
{
|
|
replay_save_instructions();
|
|
replay_mutex_lock();
|
|
replay_put_event(EVENT_CHAR_WRITE);
|
|
replay_put_dword(res);
|
|
replay_put_dword(offset);
|
|
replay_mutex_unlock();
|
|
}
|
|
|
|
void replay_char_write_event_load(int *res, int *offset)
|
|
{
|
|
replay_account_executed_instructions();
|
|
replay_mutex_lock();
|
|
if (replay_next_event_is(EVENT_CHAR_WRITE)) {
|
|
*res = replay_get_dword();
|
|
*offset = replay_get_dword();
|
|
replay_finish_event();
|
|
replay_mutex_unlock();
|
|
} else {
|
|
replay_mutex_unlock();
|
|
error_report("Missing character write event in the replay log");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
int replay_char_read_all_load(uint8_t *buf)
|
|
{
|
|
replay_mutex_lock();
|
|
if (replay_next_event_is(EVENT_CHAR_READ_ALL)) {
|
|
size_t size;
|
|
int res;
|
|
replay_get_array(buf, &size);
|
|
replay_finish_event();
|
|
replay_mutex_unlock();
|
|
res = (int)size;
|
|
assert(res >= 0);
|
|
return res;
|
|
} else if (replay_next_event_is(EVENT_CHAR_READ_ALL_ERROR)) {
|
|
int res = replay_get_dword();
|
|
replay_finish_event();
|
|
replay_mutex_unlock();
|
|
return res;
|
|
} else {
|
|
replay_mutex_unlock();
|
|
error_report("Missing character read all event in the replay log");
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void replay_char_read_all_save_error(int res)
|
|
{
|
|
assert(res < 0);
|
|
replay_save_instructions();
|
|
replay_mutex_lock();
|
|
replay_put_event(EVENT_CHAR_READ_ALL_ERROR);
|
|
replay_put_dword(res);
|
|
replay_mutex_unlock();
|
|
}
|
|
|
|
void replay_char_read_all_save_buf(uint8_t *buf, int offset)
|
|
{
|
|
replay_save_instructions();
|
|
replay_mutex_lock();
|
|
replay_put_event(EVENT_CHAR_READ_ALL);
|
|
replay_put_array(buf, offset);
|
|
replay_mutex_unlock();
|
|
}
|