UBUNTU: SAUCE: (noup) Update spl to 0.7.3-1ubuntu1, zfs to 0.7.3-1ubuntu1

[mirror_ubuntu-bionic-kernel.git] / zfs / module / icp / include / sys / ia32 / stack.h

diff --git a/zfs/module/icp/include/sys/ia32/stack.h b/zfs/module/icp/include/sys/ia32/stack.h
new file mode 100644 (file)
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+++ b/zfs/module/icp/include/sys/ia32/stack.h
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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*
+ * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#ifndef _IA32_SYS_STACK_H
+#define        _IA32_SYS_STACK_H
+
+#if !defined(_ASM)
+
+#include <sys/types.h>
+
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * In the x86 world, a stack frame looks like this:
+ *
+ *             |--------------------------|
+ * 4n+8(%ebp) ->| argument word n         |
+ *             | ...                      |    (Previous frame)
+ *    8(%ebp) ->| argument word 0         |
+ *             |--------------------------|--------------------
+ *    4(%ebp) ->| return address          |
+ *             |--------------------------|
+ *    0(%ebp) ->| previous %ebp (optional) |
+ *             |--------------------------|
+ *   -4(%ebp) ->| unspecified             |    (Current frame)
+ *             | ...                      |
+ *    0(%esp) ->| variable size                   |
+ *             |--------------------------|
+ */
+
+/*
+ * Stack alignment macros.
+ */
+
+#define        STACK_ALIGN32           4
+#define        STACK_ENTRY_ALIGN32     4
+#define        STACK_BIAS32            0
+#define        SA32(x)                 (((x)+(STACK_ALIGN32-1)) & ~(STACK_ALIGN32-1))
+#define        STACK_RESERVE32         0
+#define        MINFRAME32              0
+
+#if defined(__amd64)
+
+/*
+ * In the amd64 world, a stack frame looks like this:
+ *
+ *             |--------------------------|
+ * 8n+16(%rbp)->| argument word n         |
+ *             | ...                      |    (Previous frame)
+ *   16(%rbp) ->| argument word 0         |
+ *             |--------------------------|--------------------
+ *    8(%rbp) ->| return address          |
+ *             |--------------------------|
+ *    0(%rbp) ->| previous %rbp            |
+ *             |--------------------------|
+ *   -8(%rbp) ->| unspecified             |    (Current frame)
+ *             | ...                      |
+ *    0(%rsp) ->| variable size                   |
+ *             |--------------------------|
+ * -128(%rsp) ->| reserved for function           |
+ *             |--------------------------|
+ *
+ * The end of the input argument area must be aligned on a 16-byte
+ * boundary; i.e. (%rsp - 8) % 16 == 0 at function entry.
+ *
+ * The 128-byte location beyond %rsp is considered to be reserved for
+ * functions and is NOT modified by signal handlers.  It can be used
+ * to store temporary data that is not needed across function calls.
+ */
+
+/*
+ * Stack alignment macros.
+ */
+
+#define        STACK_ALIGN64           16
+#define        STACK_ENTRY_ALIGN64     8
+#define        STACK_BIAS64            0
+#define        SA64(x)                 (((x)+(STACK_ALIGN64-1)) & ~(STACK_ALIGN64-1))
+#define        STACK_RESERVE64         128
+#define        MINFRAME64              0
+
+#define        STACK_ALIGN             STACK_ALIGN64
+#define        STACK_ENTRY_ALIGN       STACK_ENTRY_ALIGN64
+#define        STACK_BIAS              STACK_BIAS64
+#define        SA(x)                   SA64(x)
+#define        STACK_RESERVE           STACK_RESERVE64
+#define        MINFRAME                MINFRAME64
+
+#elif defined(__i386)
+
+#define        STACK_ALIGN             STACK_ALIGN32
+#define        STACK_ENTRY_ALIGN       STACK_ENTRY_ALIGN32
+#define        STACK_BIAS              STACK_BIAS32
+#define        SA(x)                   SA32(x)
+#define        STACK_RESERVE           STACK_RESERVE32
+#define        MINFRAME                MINFRAME32
+
+#endif /* __i386 */
+
+#if defined(_KERNEL) && !defined(_ASM)
+
+#if defined(DEBUG)
+#if STACK_ALIGN == 4
+#define        ASSERT_STACK_ALIGNED()                                          \
+       {                                                               \
+               uint32_t __tmp;                                         \
+               ASSERT((((uintptr_t)&__tmp) & (STACK_ALIGN - 1)) == 0); \
+       }
+#elif (STACK_ALIGN == 16) && (_LONG_DOUBLE_ALIGNMENT == 16)
+#define        ASSERT_STACK_ALIGNED()                                          \
+       {                                                               \
+               long double __tmp;                                      \
+               ASSERT((((uintptr_t)&__tmp) & (STACK_ALIGN - 1)) == 0); \
+       }
+#endif
+#else  /* DEBUG */
+#define        ASSERT_STACK_ALIGNED()
+#endif /* DEBUG */
+
+struct regs;
+
+void traceregs(struct regs *);
+void traceback(caddr_t);
+
+#endif /* defined(_KERNEL) && !defined(_ASM) */
+
+#define        STACK_GROWTH_DOWN /* stacks grow from high to low addresses */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _IA32_SYS_STACK_H */