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asm_linkage.h
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stack.h
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trap.h
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Editing: stack.h
/* * 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(ZFS_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 */
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