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[Qemu-devel] [PATCH 14/43] windbg: init DBGKD_ANY_WAIT_STATE_CHANGE
From: |
Mihail Abakumov |
Subject: |
[Qemu-devel] [PATCH 14/43] windbg: init DBGKD_ANY_WAIT_STATE_CHANGE |
Date: |
Tue, 26 Sep 2017 14:05:24 +0300 |
User-agent: |
StGit/0.17.1-dirty |
Added function for init DBGKD_ANY_WAIT_STATE_CHANGE. It is a header of 'state
change' packets.
Signed-off-by: Mihail Abakumov <address@hidden>
Signed-off-by: Pavel Dovgalyuk <address@hidden>
Signed-off-by: Dmitriy Koltunov <address@hidden>
---
include/exec/windbgstub-utils.h | 8 +++++
windbgstub-utils.c | 57 +++++++++++++++++++++++++++++++++++++++
2 files changed, 65 insertions(+)
diff --git a/include/exec/windbgstub-utils.h b/include/exec/windbgstub-utils.h
index 63df5e339c..cf2996d8cb 100755
--- a/include/exec/windbgstub-utils.h
+++ b/include/exec/windbgstub-utils.h
@@ -62,6 +62,14 @@
_t; \
})
+#if TARGET_LONG_BITS == 64
+# define sttul_p(p, v) stq_p(p, v)
+# define ldtul_p(p) ldq_p(p)
+#else
+# define sttul_p(p, v) stl_p(p, v)
+# define ldtul_p(p) ldl_p(p)
+#endif
+
typedef struct InitedAddr {
target_ulong addr;
bool is_init;
diff --git a/windbgstub-utils.c b/windbgstub-utils.c
index 662096647e..60f6705f7c 100755
--- a/windbgstub-utils.c
+++ b/windbgstub-utils.c
@@ -14,9 +14,13 @@
#ifdef TARGET_X86_64
# define OFFSET_SELF_PCR 0x18
# define OFFSET_VERS 0x108
+# define OFFSET_KPRCB 0x20
+# define OFFSET_KPRCB_CURRTHREAD 0x8
#else
# define OFFSET_SELF_PCR 0x1C
# define OFFSET_VERS 0x34
+# define OFFSET_KPRCB 0x20
+# define OFFSET_KPRCB_CURRTHREAD 0x4
#endif
typedef struct KDData {
@@ -26,6 +30,59 @@ typedef struct KDData {
static KDData *kd;
+static void kd_breakpoint_remove_range(CPUState *cpu, target_ulong base,
+ target_ulong limit)
+{}
+
+__attribute__ ((unused)) /* unused yet */
+static void kd_init_state_change(CPUState *cpu,
+ DBGKD_ANY_WAIT_STATE_CHANGE *sc)
+{
+ CPUArchState *env = cpu->env_ptr;
+ DBGKD_CONTROL_REPORT *cr = &sc->ControlReport;
+ int err = 0;
+
+ /* T0D0: HEADER */
+
+ sc->Processor = 0;
+
+ sc->NumberProcessors = 0;
+ CPUState *cpu_tmp;
+ CPU_FOREACH(cpu_tmp) {
+ sc->NumberProcessors++;
+ }
+ sc->NumberProcessors = ldl_p(&sc->NumberProcessors);
+
+ target_ulong KPRCB = READ_VMEM(cpu, kd->KPCR.addr +
+ OFFSET_KPRCB, target_ulong);
+ sc->Thread = READ_VMEM(cpu, KPRCB + OFFSET_KPRCB_CURRTHREAD,
+ target_ulong);
+ sc->Thread = ldtul_p(&sc->Thread);
+ sc->ProgramCounter = ldtul_p(&env->eip);
+
+ /* T0D0: CONTROL REPORT */
+
+ cr->Dr6 = ldtul_p(&env->dr[6]);
+ cr->Dr7 = ldtul_p(&env->dr[7]);
+ cr->ReportFlags = REPORT_INCLUDES_SEGS | REPORT_STANDARD_CS;
+ cr->ReportFlags = lduw_p(&cr->ReportFlags);
+ cr->SegCs = lduw_p(&env->segs[R_CS].selector);
+ cr->SegDs = lduw_p(&env->segs[R_DS].selector);
+ cr->SegEs = lduw_p(&env->segs[R_ES].selector);
+ cr->SegFs = lduw_p(&env->segs[R_FS].selector);
+ cr->EFlags = ldl_p(&env->eflags);
+
+ err = cpu_memory_rw_debug(cpu, sc->ProgramCounter,
+ PTR(cr->InstructionStream[0]),
+ DBGKD_MAXSTREAM, 0);
+ if (!err) {
+ cr->InstructionCount = DBGKD_MAXSTREAM;
+ cr->InstructionCount = lduw_p(&cr->InstructionCount);
+ kd_breakpoint_remove_range(cpu, sc->ProgramCounter,
+ sc->ProgramCounter + DBGKD_MAXSTREAM);
+ }
+}
+
bool windbg_on_load(void)
{
CPUState *cpu = qemu_get_cpu(0);
- [Qemu-devel] [PATCH 04/43] windbg: added '-windbg' option, (continued)
- [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, 2017/09/26
- [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 <=
- [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
- [Qemu-devel] [PATCH 17/43] windbg: generate LoadSymbolsStateChange, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 18/43] windbg: windbg_vm_stop, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 19/43] windbg: implemented windbg_process_control_packet, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 20/43] windbg: implemented windbg_process_data_packet, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 21/43] windbg: implemented windbg_process_manipulate_packet, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 22/43] windbg: implemented kd_api_read_virtual_memory and kd_api_read_virtual_memory, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 23/43] windbg: kernel's structures, Mihail Abakumov, 2017/09/26
- [Qemu-devel] [PATCH 24/43] windbg: implemented kd_api_get_context and kd_api_set_context, Mihail Abakumov, 2017/09/26