mgdb: struct winnt_thread and friends: initial implementation and integration.

1 files changed, 17 insertions, 10 deletions

diff --git a/overlay/mgdb/gdb/amd64-winnt-regcache.c b/overlay/mgdb/gdb/amd64-winnt-regcache.c
index 83a836c..7a1dab6 100644
--- a/overlay/mgdb/gdb/amd64-winnt-regcache.c
+++ b/overlay/mgdb/gdb/amd64-winnt-regcache.c
@@ -8,6 +8,7 @@
 #include "osabi.h"
 #include "regcache.h"
 #include "amd64-tdep.h"
+#include "winnt-nat.h"
 
 #include <signal.h>
 #include <sys/debug.h>
@@ -61,23 +62,29 @@ static void amd64_winnt_supply_core_regs(
 	amd64_winnt_supply_reg(rcache,AMD64_EFLAGS_REGNUM,regctx->uc_eflags);
 }
 
-int amd64_winnt_fetch_registers(
-	int pfd, struct regcache * rcache,
-	int regnum, pid_t tid)
+void amd64_winnt_fetch_registers(
+	struct regcache * rcache, int regnum,
+	struct winnt_thread * thread)
 {
-	int ret;
-	mcontext_t regctx;
+	int          pfd;
+	pid_t        tid;
+	mcontext_t * regctx;
 
-	if ((ret = __dbg_regs_fetch(pfd,tid,&regctx)) < 0)
-		return ret;
+	pfd    = thread->process->pfd;
+	tid    = thread->tid;
+	regctx = &thread->regctx;
+
+	if (thread->regctx.uc_context_flags)
+		if (__dbg_regs_fetch(pfd,tid,regctx) < 0)
+			return;
 
 	if (regnum == AMD64_RIP_REGNUM) {
-		amd64_winnt_supply_pc_regs(rcache,&regctx);
+		amd64_winnt_supply_pc_regs(rcache,regctx);
 	} else {
-		amd64_winnt_supply_core_regs(rcache,&regctx);
+		amd64_winnt_supply_core_regs(rcache,regctx);
 	}
 
-	return 0;
+	regctx->uc_context_flags = WINNT_THREAD_CONTEXT_READY;
 }
 
 #define AMD64_WINNT_INIT_REG_OFFSET(regnum,regmem) \