Copy i386 reg.h to x86 and merge with amd64 reg.h. Replace i386/amd64/pc98

reg.h with stubs.

The tREGISTER macros are only made visible on i386. These macros are
deprecated and should not be available on amd64.

The i386 and amd64 versions of struct reg have been renamed to struct
__reg32 and struct __reg64. During compilation either __reg32 or __reg64
is defined as reg depending on the machine architecture. On amd64 the i386
struct is also available as struct reg32 which is used in COMPAT_FREEBSD32
code.

Most of compat/ia32/ia32_reg.h is now IA64 only.

Reviewed by:	kib (previous version)

1 files changed, 253 insertions, 0 deletions

diff --git a/sys/x86/include/reg.h b/sys/x86/include/reg.h
new file mode 100644
index 0000000..7f37275
--- /dev/null
+++ b/sys/x86/include/reg.h
@@ -0,0 +1,253 @@
+/*-
+ * Copyright (c) 2003 Peter Wemm.
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	from: @(#)reg.h	5.5 (Berkeley) 1/18/91
+ * $FreeBSD$
+ */
+
+#ifndef _MACHINE_REG_H_
+#define	_MACHINE_REG_H_
+
+#include <machine/_types.h>
+
+#ifdef __i386__
+/*
+ * Indices for registers in `struct trapframe' and `struct regs'.
+ *
+ * This interface is deprecated.  In the kernel, it is only used in FPU
+ * emulators to convert from register numbers encoded in instructions to
+ * register values.  Everything else just accesses the relevant struct
+ * members.  In userland, debuggers tend to abuse this interface since
+ * they don't understand that `struct regs' is a struct.  I hope they have
+ * stopped accessing the registers in the trap frame via PT_{READ,WRITE}_U
+ * and we can stop supporting the user area soon.
+ */
+#define	tFS	(0)
+#define	tES	(1)
+#define	tDS	(2)
+#define	tEDI	(3)
+#define	tESI	(4)
+#define	tEBP	(5)
+#define	tISP	(6)
+#define	tEBX	(7)
+#define	tEDX	(8)
+#define	tECX	(9)
+#define	tEAX	(10)
+#define	tERR	(12)
+#define	tEIP	(13)
+#define	tCS	(14)
+#define	tEFLAGS	(15)
+#define	tESP	(16)
+#define	tSS	(17)
+
+/*
+ * Indices for registers in `struct regs' only.
+ *
+ * Some registers live in the pcb and are only in an "array" with the
+ * other registers in application interfaces that copy all the registers
+ * to or from a `struct regs'.
+ */
+#define	tGS	(18)
+#endif /* __i386__ */
+
+/* Rename the structs below depending on the machine architecture. */
+#ifdef	__i386__
+#define	__reg32		reg
+#define	__fpreg32	fpreg
+#define	__dbreg32	dbreg
+#else
+#define	__reg32		reg32
+#define	__reg64		reg
+#define	__fpreg32	fpreg32
+#define	__fpreg64	fpreg
+#define	__dbreg32	dbreg32
+#define	__dbreg64	dbreg
+#endif
+
+/*
+ * Register set accessible via /proc/$pid/regs and PT_{SET,GET}REGS.
+ */
+struct __reg32 {
+	__uint32_t	r_fs;
+	__uint32_t	r_es;
+	__uint32_t	r_ds;
+	__uint32_t	r_edi;
+	__uint32_t	r_esi;
+	__uint32_t	r_ebp;
+	__uint32_t	r_isp;
+	__uint32_t	r_ebx;
+	__uint32_t	r_edx;
+	__uint32_t	r_ecx;
+	__uint32_t	r_eax;
+	__uint32_t	r_trapno;
+	__uint32_t	r_err;
+	__uint32_t	r_eip;
+	__uint32_t	r_cs;
+	__uint32_t	r_eflags;
+	__uint32_t	r_esp;
+	__uint32_t	r_ss;
+	__uint32_t	r_gs;
+};
+
+struct __reg64 {
+	__int64_t	r_r15;
+	__int64_t	r_r14;
+	__int64_t	r_r13;
+	__int64_t	r_r12;
+	__int64_t	r_r11;
+	__int64_t	r_r10;
+	__int64_t	r_r9;
+	__int64_t	r_r8;
+	__int64_t	r_rdi;
+	__int64_t	r_rsi;
+	__int64_t	r_rbp;
+	__int64_t	r_rbx;
+	__int64_t	r_rdx;
+	__int64_t	r_rcx;
+	__int64_t	r_rax;
+	__uint32_t	r_trapno;
+	__uint16_t	r_fs;
+	__uint16_t	r_gs;
+	__uint32_t	r_err;
+	__uint16_t	r_es;
+	__uint16_t	r_ds;
+	__int64_t	r_rip;
+	__int64_t	r_cs;
+	__int64_t	r_rflags;
+	__int64_t	r_rsp;
+	__int64_t	r_ss;
+};
+
+/*
+ * Register set accessible via /proc/$pid/fpregs.
+ *
+ * XXX should get struct from fpu.h.  Here we give a slightly
+ * simplified struct.  This may be too much detail.  Perhaps
+ * an array of unsigned longs is best.
+ */
+struct __fpreg32 {
+	__uint32_t	fpr_env[7];
+	__uint8_t	fpr_acc[8][10];
+	__uint32_t	fpr_ex_sw;
+	__uint8_t	fpr_pad[64];
+};
+
+struct __fpreg64 {
+	__uint64_t	fpr_env[4];
+	__uint8_t	fpr_acc[8][16];
+	__uint8_t	fpr_xacc[16][16];
+	__uint64_t	fpr_spare[12];
+};
+
+/*
+ * Register set accessible via PT_GETXMMREGS (i386).
+ */
+struct xmmreg {
+	/*
+	 * XXX should get struct from npx.h.  Here we give a slightly
+	 * simplified struct.  This may be too much detail.  Perhaps
+	 * an array of unsigned longs is best.
+	 */
+	__uint32_t	xmm_env[8];
+	__uint8_t	xmm_acc[8][16];
+	__uint8_t	xmm_reg[8][16];
+	__uint8_t	xmm_pad[224];
+};
+
+/*
+ * Register set accessible via /proc/$pid/dbregs.
+ */
+struct __dbreg32 {
+	__uint32_t	dr[8];	/* debug registers */
+				/* Index 0-3: debug address registers */
+				/* Index 4-5: reserved */
+				/* Index 6: debug status */
+				/* Index 7: debug control */
+};
+
+struct __dbreg64 {
+	__uint64_t	dr[16];	/* debug registers */
+				/* Index 0-3: debug address registers */
+				/* Index 4-5: reserved */
+				/* Index 6: debug status */
+				/* Index 7: debug control */
+				/* Index 8-15: reserved */
+};
+
+#define	DBREG_DR7_LOCAL_ENABLE	0x01
+#define	DBREG_DR7_GLOBAL_ENABLE	0x02
+#define	DBREG_DR7_LEN_1		0x00	/* 1 byte length          */
+#define	DBREG_DR7_LEN_2		0x01
+#define	DBREG_DR7_LEN_4		0x03
+#define	DBREG_DR7_LEN_8		0x02
+#define	DBREG_DR7_EXEC		0x00	/* break on execute       */
+#define	DBREG_DR7_WRONLY	0x01	/* break on write         */
+#define	DBREG_DR7_RDWR		0x03	/* break on read or write */
+#define	DBREG_DR7_MASK(i)	\
+	((__u_register_t)(0xf) << ((i) * 4 + 16) | 0x3 << (i) * 2)
+#define	DBREG_DR7_SET(i, len, access, enable)				\
+	((__u_register_t)((len) << 2 | (access)) << ((i) * 4 + 16) | 	\
+	(enable) << (i) * 2)
+#define	DBREG_DR7_GD		0x2000
+#define	DBREG_DR7_ENABLED(d, i)	(((d) & 0x3 << (i) * 2) != 0)
+#define	DBREG_DR7_ACCESS(d, i)	((d) >> ((i) * 4 + 16) & 0x3)
+#define	DBREG_DR7_LEN(d, i)	((d) >> ((i) * 4 + 18) & 0x3)
+
+#define	DBREG_DRX(d,x)	((d)->dr[(x)])	/* reference dr0 - dr7 by
+					   register number */
+
+#undef __reg32
+#undef __reg64
+#undef __fpreg32
+#undef __fpreg64
+#undef __dbreg32
+#undef __dbreg64
+
+#ifdef COMPAT_FREEBSD32
+#include <machine/fpu.h>
+#include <compat/ia32/ia32_reg.h>
+#endif
+
+#ifdef _KERNEL
+/*
+ * XXX these interfaces are MI, so they should be declared in a MI place.
+ */
+int	fill_regs(struct thread *, struct reg *);
+int	fill_frame_regs(struct trapframe *, struct reg *);
+int	set_regs(struct thread *, struct reg *);
+int	fill_fpregs(struct thread *, struct fpreg *);
+int	set_fpregs(struct thread *, struct fpreg *);
+int	fill_dbregs(struct thread *, struct dbreg *);
+int	set_dbregs(struct thread *, struct dbreg *);
+#endif
+
+#endif /* !_MACHINE_REG_H_ */