1 files changed, 45 insertions, 0 deletions
diff --git a/overlay/mgdb/gdb/amd64-winnt-regcache.c b/overlay/mgdb/gdb/amd64-winnt-regcache.c
new file mode 100644
index 0000000..6ed35cb
--- /dev/null
+++ b/overlay/mgdb/gdb/amd64-winnt-regcache.c
@@ -0,0 +1,45 @@
+/***************************************************************/
+/*  mgdb: midipix-specific bits for gdb                        */
+/*  Copyright (C) 2019  Z. Gilboa                              */
+/*  Released under GPLv2 and GPLv3; see COPYING.MGDB.          */
+/***************************************************************/
+
+#include "defs.h"
+#include "osabi.h"
+#include "regcache.h"
+#include "amd64-tdep.h"
+
+#include <signal.h>
+#include <sys/debug.h>
+
+struct regcache;
+
+static void amd64_winnt_supply_reg(
+	struct regcache * rcache,
+	int regnum, uintptr_t regval)
+{
+	regcache_raw_supply(rcache,regnum,&regval);
+}
+
+static void amd64_winnt_supply_pc_regs(
+	struct regcache * rcache,
+	mcontext_t * regctx)
+{
+	amd64_winnt_supply_reg(rcache,AMD64_RIP_REGNUM,regctx->uc_rip);
+}
+
+int amd64_winnt_fetch_registers(
+	int pfd, struct regcache * rcache,
+	int regnum, pid_t tid)
+{
+	int ret;
+	mcontext_t regctx;
+
+	if ((ret = __dbg_regs_fetch(pfd,tid,&regctx)) < 0)
+		return ret;
+
+	if (regnum == AMD64_RIP_REGNUM)
+		amd64_winnt_supply_pc_regs(rcache,&regctx);
+
+	return 0;
+}