patch-2.4.2 linux/include/asm-s390x/s390-regs-common.h

• Lines: 116
• Date: Tue Feb 13 14:13:44 2001
• Orig file: v2.4.1/linux/include/asm-s390x/s390-regs-common.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.1/linux/include/asm-s390x/s390-regs-common.h linux/include/asm-s390x/s390-regs-common.h
@@ -0,0 +1,115 @@
+/*
+ *  include/asm-s390/s390-regs-common.h
+ *
+ *  S390 version
+ *    Copyright (C) 1999 IBM Deutschland Entwicklung GmbH, IBM Corporation
+ *    Author(s): Denis Joseph Barrow (djbarrow@de.ibm.com,barrow_dj@yahoo.com)
+ *
+ *  this file is designed to keep as much compatibility between
+ *  gdb's representation of registers & the kernels representation of registers
+ *  as possible so as to minimise translation between gdb registers &
+ *  kernel registers please keep this matched with gdb & strace 
+ */
+
+#ifndef _S390_REGS_COMMON_H
+#define _S390_REGS_COMMON_H
+#ifndef __ASSEMBLY__
+#include <asm/types.h>
+#endif
+#if defined(WANT_S390_TGT_DEFS) || defined(__KERNEL__)
+#define REGISTER_SIZE 8
+#endif
+#define NUM_GPRS      16
+#define GPR_SIZE      8
+#define PSW_MASK_SIZE 8
+#define PSW_ADDR_SIZE 8
+#define NUM_FPRS      16
+#define FPR_SIZE      8
+#define FPC_SIZE      4
+#define FPC_PAD_SIZE  4 /* gcc insists on aligning the fpregs */
+#define NUM_CRS       16
+#define CR_SIZE       8
+#define NUM_ACRS      16
+#define ACR_SIZE      4
+
+#define STACK_FRAME_OVERHEAD    160      /* size of minimum stack frame */
+
+#ifndef __ASSEMBLY__
+/* this typedef defines how a Program Status Word looks like */
+typedef struct 
+{
+        __u64   mask;
+        __u64   addr;
+} psw_t __attribute__ ((aligned(8)));
+
+typedef __u64 gpr_t;
+
+/* 2 __u32's are used for floats instead to compile  with a __STRICT_ANSI__ defined */ 
+typedef union
+{
+#ifdef __KERNEL__ 
+	__u64   d; /* mathemu.h gets upset otherwise */
+#else
+	double  d; /* ansi c dosen't like long longs & make sure that */
+	/* alignments are identical for both compiles */ 
+#endif
+       struct
+       {
+	       __u32 hi;
+	       __u32 lo;
+       } fp;
+       __u32    f; 
+} freg_t;
+
+typedef struct
+{
+/*
+  The compiler appears to like aligning freg_t on an 8 byte boundary
+  so I always access fpregs, this was causing fun when I was doing
+  coersions.
+ */
+	__u32   fpc;
+	freg_t  fprs[NUM_FPRS];              
+} s390_fp_regs;
+
+#define FPC_EXCEPTION_MASK      0xF8000000
+#define FPC_FLAGS_MASK          0x00F80000
+#define FPC_DXC_MASK            0x0000FF00
+#define FPC_RM_MASK             0x00000003
+#define FPC_VALID_MASK         ((FPC_EXCEPTION_MASK|FPC_FLAGS_MASK| \
+                                 FPC_DXC_MASK|FPC_RM_MASK))
+
+
+/*
+  gdb structures & the kernel have this much always in common
+ */
+#define S390_REGS_COMMON       \
+psw_t psw;                     \
+__u64 gprs[NUM_GPRS];          \
+__u32  acrs[NUM_ACRS];         \
+
+typedef struct
+{
+	S390_REGS_COMMON
+} s390_regs_common __attribute__ ((packed));
+
+
+/* Sequence of bytes for breakpoint illegal instruction.  */
+#define S390_BREAKPOINT {0x0,0x1}
+#define S390_BREAKPOINT_U16 ((__u16)0x0001)
+#define S390_SYSCALL_OPCODE ((__u16)0x0a00)
+#define S390_SYSCALL_SIZE   2
+#if defined(WANT_S390_TGT_DEFS) || defined(__KERNEL__)
+#define ADDR_BITS_REMOVE(addr) ((addr))
+#endif
+#endif
+#endif
+
+
+
+
+
+
+
+
+