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-rw-r--r--gdb/config/mips/tm-irix5.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/gdb/config/mips/tm-irix5.h b/gdb/config/mips/tm-irix5.h
index d70afd5..ad98e88 100644
--- a/gdb/config/mips/tm-irix5.h
+++ b/gdb/config/mips/tm-irix5.h
@@ -19,6 +19,37 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "mips/tm-irix3.h"
+#if defined (_MIPS_SIM_NABI32) && _MIPS_SIM == _MIPS_SIM_NABI32
+/*
+ * Irix 6 (n32 ABI) has 32-bit GP regs and 64-bit FP regs
+ */
+
+#undef REGISTER_BYTES
+#define REGISTER_BYTES (MIPS_NUMREGS * 8 + (NUM_REGS - MIPS_NUMREGS) * MIPS_REGSIZE)
+
+#undef REGISTER_BYTE
+#define REGISTER_BYTE(N) \
+ (((N) < FP0_REGNUM) ? (N) * MIPS_REGSIZE : \
+ ((N) < FP0_REGNUM + 32) ? \
+ FP0_REGNUM * MIPS_REGSIZE + \
+ ((N) - FP0_REGNUM) * sizeof(double) : \
+ 32 * sizeof(double) + ((N) - 32) * MIPS_REGSIZE)
+
+#undef REGISTER_VIRTUAL_TYPE
+#define REGISTER_VIRTUAL_TYPE(N) \
+ (((N) >= FP0_REGNUM && (N) < FP0_REGNUM+32) ? builtin_type_double \
+ : ((N) == 32 /*SR*/) ? builtin_type_uint32 \
+ : ((N) >= 70 && (N) <= 89) ? builtin_type_uint32 \
+ : builtin_type_int)
+
+#undef MIPS_LAST_ARG_REGNUM
+#define MIPS_LAST_ARG_REGNUM 11 /* N32 uses R4 through R11 for args */
+
+#undef MIPS_NUM_ARG_REGS
+#define MIPS_NUM_ARG_REGS 8
+
+#endif /* N32 */
+
/* When calling functions on Irix 5 (or any MIPS SVR4 ABI compliant
platform) $25 must hold the function address. Dest_Reg is a macro
used in CALL_DUMMY in tm-mips.h. */