Signed-off-by: Mihail Abakumov <mikhail.abaku...@ispras.ru>
Signed-off-by: Pavel Dovgalyuk <dovga...@ispras.ru>
Signed-off-by: Dmitriy Koltunov <koltu...@ispras.ru>
---
target/i386/windbgstub.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)
diff --git a/target/i386/windbgstub.c b/target/i386/windbgstub.c
index cae827df50..6e167a7473 100755
--- a/target/i386/windbgstub.c
+++ b/target/i386/windbgstub.c
@@ -299,7 +299,32 @@ static int windbg_hw_breakpoint_remove(CPUState *cpu, int
index)
}
static void windbg_set_dr7(CPUState *cpu, target_ulong new_dr7)
-{}
+{
+ CPUArchState *env = cpu->env_ptr;
+ target_ulong old_dr7 = env->dr[7];
+ int iobpt = 0;
+ int i;
+
+ new_dr7 |= DR7_FIXED_1;
+ if (new_dr7 == old_dr7) {
+ return;
+ }
+
+ for (i = 0; i < DR7_MAX_BP; i++) {
+ if (IS_BP_ENABLED(old_dr7, i) && !IS_BP_ENABLED(new_dr7, i)) {
+ windbg_hw_breakpoint_remove(cpu, i);
+ }
+ }
+
+ env->dr[7] = new_dr7;
+ for (i = 0; i < DR7_MAX_BP; i++) {
+ if (IS_BP_ENABLED(env->dr[7], i)) {
+ iobpt |= windbg_hw_breakpoint_insert(cpu, i);
+ }
+ }
+
+ env->hflags = (env->hflags & ~HF_IOBPT_MASK) | iobpt;
+}
static void windbg_set_dr(CPUState *cpu, int index, target_ulong value)
{
