[src/trunk]: src/sys/arch/powerpc/include Update KDB_NUMREGS to match what gd...

[matt <matt%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0659a9194b4c
branches:  trunk
changeset: 766036:0659a9194b4c
user:      matt <matt%NetBSD.org@localhost>
date:      Tue Jun 14 03:28:32 2011 +0000

description:
Update KDB_NUMREGS to match what gdb6 is using for PPC.
Patch taken from PR/43196

diffstat:

 sys/arch/powerpc/include/db_machdep.h |  20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)

diffs (43 lines):

diff -r 8245a27832b4 -r 0659a9194b4c sys/arch/powerpc/include/db_machdep.h
--- a/sys/arch/powerpc/include/db_machdep.h     Tue Jun 14 03:12:43 2011 +0000
+++ b/sys/arch/powerpc/include/db_machdep.h     Tue Jun 14 03:28:32 2011 +0000
@@ -1,5 +1,5 @@
 /*     $OpenBSD: db_machdep.h,v 1.2 1997/03/21 00:48:48 niklas Exp $   */
-/*     $NetBSD: db_machdep.h,v 1.23 2011/05/26 15:34:13 joerg Exp $    */
+/*     $NetBSD: db_machdep.h,v 1.24 2011/06/14 03:28:32 matt Exp $     */
 
 /* 
  * Mach Operating System
@@ -134,17 +134,29 @@
  * and up to 64 4-byte non-standard OES special-purpose registers.
  * GDB keeps some extra space, so the total size of the register array
  * they use is 880 bytes (gdb-5.0).
+ * KGDB_NUMREGS 220
+ */
+/*
+ * GDB's register array of gdb-6.0 is defined in
+ * usr/src/gnu/dist/gdb6/gdb/regformats/reg-ppc.dat
+ * GDB's register array is:
+ *  32 4-byte GPRs
+ *  32 8-byte FPRs
+ *   7 4-byte UISA special-purpose registers: pc, ps, cr, lr, ctr, xer, fpscr
+ * index of pc in array: 32 + 2*32 = 96
+ * size 32 * 4 + 32 * 8 + 7 * 4 = 103 * 4 = 412 bytes
+ * KGD_NUMREGS 103
  */
 typedef long   kgdb_reg_t;
-#define KGDB_NUMREGS   220     /* Treat all registers as 4-byte */
-#define KGDB_BUFLEN    (2*KGDB_NUMREGS*sizeof(kgdb_reg_t)+1)
 #define KGDB_PPC_PC_REG                96      /* first UISA SP register */
 #define KGDB_PPC_MSR_REG       97
 #define KGDB_PPC_CR_REG                98
 #define KGDB_PPC_LR_REG                99
 #define KGDB_PPC_CTR_REG       100
 #define KGDB_PPC_XER_REG       101
-#define KGDB_PPC_MQ_REG                102
+#define KGDB_PPC_FPSCR_REG     102
+#define KGDB_NUMREGS           103     /* Treat all registers as 4-byte */
+#define KGDB_BUFLEN            (2*KGDB_NUMREGS*sizeof(kgdb_reg_t)+1)
 
 #ifdef _KERNEL