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Diffstat (limited to 'StdLib/Include/Arm/machine/mcontext.h')
| -rw-r--r-- | StdLib/Include/Arm/machine/mcontext.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/StdLib/Include/Arm/machine/mcontext.h b/StdLib/Include/Arm/machine/mcontext.h new file mode 100644 index 0000000000..0f450c43c1 --- /dev/null +++ b/StdLib/Include/Arm/machine/mcontext.h @@ -0,0 +1,114 @@ +/* $NetBSD: mcontext.h,v 1.5 2005/12/11 12:16:47 christos Exp $ */
+
+/*-
+ * Copyright (c) 2001, 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to The NetBSD Foundation
+ * by Klaus Klein and by Jason R. Thorpe of Wasabi Systems, Inc.
+ *
+ * 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.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the NetBSD
+ * Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
+ */
+
+#ifndef _ARM_MCONTEXT_H_
+#define _ARM_MCONTEXT_H_
+
+/*
+ * General register state
+ */
+#define _NGREG 17
+typedef unsigned int __greg_t;
+typedef __greg_t __gregset_t[_NGREG];
+
+#define _REG_R0 0
+#define _REG_R1 1
+#define _REG_R2 2
+#define _REG_R3 3
+#define _REG_R4 4
+#define _REG_R5 5
+#define _REG_R6 6
+#define _REG_R7 7
+#define _REG_R8 8
+#define _REG_R9 9
+#define _REG_R10 10
+#define _REG_R11 11
+#define _REG_R12 12
+#define _REG_R13 13
+#define _REG_R14 14
+#define _REG_R15 15
+#define _REG_CPSR 16
+/* Convenience synonyms */
+#define _REG_FP _REG_R11
+#define _REG_SP _REG_R13
+#define _REG_LR _REG_R14
+#define _REG_PC _REG_R15
+
+/*
+ * Floating point register state
+ */
+/* Note: the storage layout of this structure must be identical to ARMFPE! */
+typedef struct {
+ unsigned int __fp_fpsr;
+ struct {
+ unsigned int __fp_exponent;
+ unsigned int __fp_mantissa_hi;
+ unsigned int __fp_mantissa_lo;
+ } __fp_fr[8];
+} __fpregset_t;
+
+typedef struct {
+ unsigned int __vfp_fpscr;
+ unsigned int __vfp_fstmx[33];
+ unsigned int __vfp_fpsid;
+} __vfpregset_t;
+
+typedef struct {
+ __gregset_t __gregs;
+ union {
+ __fpregset_t __fpregs;
+ __vfpregset_t __vfpregs;
+ } __fpu;
+} mcontext_t;
+
+/* Machine-dependent uc_flags */
+#define _UC_ARM_VFP 0x00010000 /* FPU field is VFP */
+
+/* used by signal delivery to indicate status of signal stack */
+#define _UC_SETSTACK 0x00020000
+#define _UC_CLRSTACK 0x00040000
+
+#define _UC_MACHINE_PAD 3 /* Padding appended to ucontext_t */
+
+#define _UC_MACHINE_SP(uc) ((uc)->uc_mcontext.__gregs[_REG_SP])
+#define _UC_MACHINE_PC(uc) ((uc)->uc_mcontext.__gregs[_REG_PC])
+#define _UC_MACHINE_INTRV(uc) ((uc)->uc_mcontext.__gregs[_REG_R0])
+
+#define _UC_MACHINE_SET_PC(uc, pc) _UC_MACHINE_PC(uc) = (pc)
+
+#endif /* !_ARM_MCONTEXT_H_ */
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