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[Qemu-devel] [PATCH 07/43] windbg: added chardev
From: |
Mihail Abakumov |
Subject: |
[Qemu-devel] [PATCH 07/43] windbg: added chardev |
Date: |
Tue, 26 Sep 2017 14:04:45 +0300 |
User-agent: |
StGit/0.17.1-dirty |
Added chardev for listening to windbg. Target device is a parameter in the
'-windbg' option.
Signed-off-by: Mihail Abakumov <address@hidden>
Signed-off-by: Pavel Dovgalyuk <address@hidden>
Signed-off-by: Dmitriy Koltunov <address@hidden>
---
windbgstub.c | 26 ++++++++++++++++++++++++++
1 file changed, 26 insertions(+)
diff --git a/windbgstub.c b/windbgstub.c
index 60a380c213..378d1b911f 100755
--- a/windbgstub.c
+++ b/windbgstub.c
@@ -10,6 +10,7 @@
*/
#include "qemu/osdep.h"
+#include "qapi/error.h"
#include "chardev/char.h"
#include "chardev/char-fe.h"
#include "exec/windbgstub.h"
@@ -18,12 +19,26 @@
typedef struct WindbgState {
bool is_loaded;
+ CharBackend chr;
+
uint32_t ctrl_packet_id;
uint32_t data_packet_id;
} WindbgState;
static WindbgState *windbg_state;
+static int windbg_chr_can_receive(void *opaque)
+{
+ return PACKET_MAX_SIZE;
+}
+
+static void windbg_chr_receive(void *opaque, const uint8_t *buf, int size)
+{
+ if (windbg_state->is_loaded) {
+ /* T0D0: parse data */
+ }
+}
+
static void windbg_exit(void)
{
g_free(windbg_state);
@@ -31,6 +46,8 @@ static void windbg_exit(void)
int windbg_server_start(const char *device)
{
+ Chardev *chr = NULL;
+
if (windbg_state) {
WINDBG_ERROR("Multiple instances are not supported");
exit(1);
@@ -40,6 +57,15 @@ int windbg_server_start(const char *device)
windbg_state->ctrl_packet_id = RESET_PACKET_ID;
windbg_state->data_packet_id = INITIAL_PACKET_ID;
+ chr = qemu_chr_new_noreplay(WINDBG, device);
+ if (!chr) {
+ return -1;
+ }
+
+ qemu_chr_fe_init(&windbg_state->chr, chr, &error_abort);
+ qemu_chr_fe_set_handlers(&windbg_state->chr, windbg_chr_can_receive,
+ windbg_chr_receive, NULL, NULL, NULL, NULL, true);
+
atexit(windbg_exit);
return 0;
}
- [Qemu-devel] [PATCH 01/43] windbg: added empty windbgstub files, (continued)
- [Qemu-devel] [PATCH 01/43] windbg: added empty windbgstub files, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 02/43] windbg: added windbg's KD header file, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 03/43] windbg: modified windbgkd.h, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 04/43] windbg: added '-windbg' option, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 05/43] windbg: added helper features, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 06/43] windbg: added WindbgState, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 07/43] windbg: added chardev,
Mihail Abakumov <=
- [Qemu-devel] [PATCH 09/43] windbg: handler of fs/gs register, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 08/43] windbg: hook to wrmsr operation, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 10/43] windbg: structures for parsing data stream, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 12/43] windbg: send data and control packets, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 13/43] windbg: handler of parsing context, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 11/43] windbg: parsing data stream, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 14/43] windbg: init DBGKD_ANY_WAIT_STATE_CHANGE, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 15/43] windbg: sized data buffer, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 16/43] windbg: generate ExceptionStateChange, Mihail Abakumov, 2017/09/26