Import the omitted gdb_machdep.c for PowerPC kernel.

Approved by:	cognet (mentor)
MFp4:		e500

1 files changed, 57 insertions, 2 deletions

diff --git a/sys/powerpc/powerpc/gdb_machdep.c b/sys/powerpc/powerpc/gdb_machdep.c
index 5fbb744..a29ff5d 100644
--- a/sys/powerpc/powerpc/gdb_machdep.c
+++ b/sys/powerpc/powerpc/gdb_machdep.c
@@ -37,6 +37,10 @@ __FBSDID("$FreeBSD$");
 #include <machine/gdb_machdep.h>
 #include <machine/pcb.h>
 #include <machine/reg.h>
+
+#include <machine/hid.h>
+#include <machine/spr.h>
+
 #include <machine/trap.h>
 
 #include <gdb/gdb.h>
@@ -47,8 +51,51 @@ gdb_cpu_getreg(int regnum, size_t *regsz)
 {
 
 	*regsz = gdb_cpu_regsz(regnum);
+
+	if (kdb_thread == curthread) {
+		switch (regnum) {
+		case 0: return (&kdb_frame->fixreg[0]);
+		case 2: return (&kdb_frame->fixreg[2]);
+		case 3: return (&kdb_frame->fixreg[3]);
+		case 4: return (&kdb_frame->fixreg[4]);
+		case 5: return (&kdb_frame->fixreg[5]);
+		case 6: return (&kdb_frame->fixreg[6]);
+		case 7: return (&kdb_frame->fixreg[7]);
+		case 8: return (&kdb_frame->fixreg[8]);
+		case 9: return (&kdb_frame->fixreg[9]);
+		case 10: return (&kdb_frame->fixreg[10]);
+		case 11: return (&kdb_frame->fixreg[11]);
+		case 12: return (&kdb_frame->fixreg[12]);
+		case 13: return (&kdb_frame->fixreg[13]);
+		case 64: return (&kdb_frame->srr0);
+		case 67: return (&kdb_frame->lr);
+
+		}
+	}
+
 	switch (regnum) {
+	case 1: return (&kdb_thrctx->pcb_sp);
+	case 14: return (&kdb_thrctx->pcb_context[0]);
+	case 15: return (&kdb_thrctx->pcb_context[1]);
+	case 16: return (&kdb_thrctx->pcb_context[2]);
+	case 17: return (&kdb_thrctx->pcb_context[3]);
+	case 18: return (&kdb_thrctx->pcb_context[4]);
+	case 19: return (&kdb_thrctx->pcb_context[5]);
+	case 20: return (&kdb_thrctx->pcb_context[6]);
+	case 21: return (&kdb_thrctx->pcb_context[7]);
+	case 22: return (&kdb_thrctx->pcb_context[8]);
+	case 23: return (&kdb_thrctx->pcb_context[9]);
+	case 24: return (&kdb_thrctx->pcb_context[10]);
+	case 25: return (&kdb_thrctx->pcb_context[11]);
+	case 26: return (&kdb_thrctx->pcb_context[12]);
+	case 27: return (&kdb_thrctx->pcb_context[13]);
+	case 28: return (&kdb_thrctx->pcb_context[14]);
+	case 29: return (&kdb_thrctx->pcb_context[15]);
+	case 30: return (&kdb_thrctx->pcb_context[16]);
+	case 31: return (&kdb_thrctx->pcb_context[17]);
+	case 64: return (&kdb_thrctx->pcb_lr);
 	}
+
 	return (NULL);
 }
 
@@ -65,8 +112,16 @@ gdb_cpu_setreg(int regnum, void *val)
 int
 gdb_cpu_signal(int vector, int dummy __unused)
 {
-
+#ifdef E500
+	if (vector == EXC_DEBUG || vector == EXC_PGM)
+		return (SIGTRAP);
+#else
 	if (vector == EXC_TRC || vector == EXC_RUNMODETRC)
 		return (SIGTRAP);
-	return (vector);
+#endif
+
+	if (vector <= 255)
+		return (vector);
+	else
+		return (SIGEMT);
 }