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Diffstat (limited to 'toolkit/crashreporter/google-breakpad/src/third_party/mac_headers/mach-o/nlist.h')
| -rw-r--r-- | toolkit/crashreporter/google-breakpad/src/third_party/mac_headers/mach-o/nlist.h | 312 |
1 files changed, 0 insertions, 312 deletions
diff --git a/toolkit/crashreporter/google-breakpad/src/third_party/mac_headers/mach-o/nlist.h b/toolkit/crashreporter/google-breakpad/src/third_party/mac_headers/mach-o/nlist.h deleted file mode 100644 index 1c1941012..000000000 --- a/toolkit/crashreporter/google-breakpad/src/third_party/mac_headers/mach-o/nlist.h +++ /dev/null @@ -1,312 +0,0 @@ -/* - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. - * - * @APPLE_LICENSE_HEADER_START@ - * - * This file contains Original Code and/or Modifications of Original Code - * as defined in and that are subject to the Apple Public Source License - * Version 2.0 (the 'License'). You may not use this file except in - * compliance with the License. Please obtain a copy of the License at - * http://www.opensource.apple.com/apsl/ and read it before using this - * file. - * - * The Original Code and all software distributed under the License are - * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER - * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, - * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and - * limitations under the License. - * - * @APPLE_LICENSE_HEADER_END@ - */ -#ifndef _MACHO_NLIST_H_ -#define _MACHO_NLIST_H_ -/* $NetBSD: nlist.h,v 1.5 1994/10/26 00:56:11 cgd Exp $ */ - -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * (c) UNIX System Laboratories, Inc. - * All or some portions of this file are derived from material licensed - * to the University of California by American Telephone and Telegraph - * Co. or Unix System Laboratories, Inc. and are reproduced herein with - * the permission of UNIX System Laboratories, 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 University of - * California, Berkeley and its contributors. - * 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. - * - * @(#)nlist.h 8.2 (Berkeley) 1/21/94 - */ -#include <stdint.h> - -/* - * Format of a symbol table entry of a Mach-O file for 32-bit architectures. - * Modified from the BSD format. The modifications from the original format - * were changing n_other (an unused field) to n_sect and the addition of the - * N_SECT type. These modifications are required to support symbols in a larger - * number of sections not just the three sections (text, data and bss) in a BSD - * file. - */ -struct nlist { - union { -#ifndef __LP64__ - char *n_name; /* for use when in-core */ -#endif - int32_t n_strx; /* index into the string table */ - } n_un; - uint8_t n_type; /* type flag, see below */ - uint8_t n_sect; /* section number or NO_SECT */ - int16_t n_desc; /* see <mach-o/stab.h> */ - uint32_t n_value; /* value of this symbol (or stab offset) */ -}; - -/* - * This is the symbol table entry structure for 64-bit architectures. - */ -struct nlist_64 { - union { - uint32_t n_strx; /* index into the string table */ - } n_un; - uint8_t n_type; /* type flag, see below */ - uint8_t n_sect; /* section number or NO_SECT */ - uint16_t n_desc; /* see <mach-o/stab.h> */ - uint64_t n_value; /* value of this symbol (or stab offset) */ -}; - -/* - * Symbols with a index into the string table of zero (n_un.n_strx == 0) are - * defined to have a null, "", name. Therefore all string indexes to non null - * names must not have a zero string index. This is bit historical information - * that has never been well documented. - */ - -/* - * The n_type field really contains four fields: - * unsigned char N_STAB:3, - * N_PEXT:1, - * N_TYPE:3, - * N_EXT:1; - * which are used via the following masks. - */ -#define N_STAB 0xe0 /* if any of these bits set, a symbolic debugging entry */ -#define N_PEXT 0x10 /* private external symbol bit */ -#define N_TYPE 0x0e /* mask for the type bits */ -#define N_EXT 0x01 /* external symbol bit, set for external symbols */ - -/* - * Only symbolic debugging entries have some of the N_STAB bits set and if any - * of these bits are set then it is a symbolic debugging entry (a stab). In - * which case then the values of the n_type field (the entire field) are given - * in <mach-o/stab.h> - */ - -/* - * Values for N_TYPE bits of the n_type field. - */ -#define N_UNDF 0x0 /* undefined, n_sect == NO_SECT */ -#define N_ABS 0x2 /* absolute, n_sect == NO_SECT */ -#define N_SECT 0xe /* defined in section number n_sect */ -#define N_PBUD 0xc /* prebound undefined (defined in a dylib) */ -#define N_INDR 0xa /* indirect */ - -/* - * If the type is N_INDR then the symbol is defined to be the same as another - * symbol. In this case the n_value field is an index into the string table - * of the other symbol's name. When the other symbol is defined then they both - * take on the defined type and value. - */ - -/* - * If the type is N_SECT then the n_sect field contains an ordinal of the - * section the symbol is defined in. The sections are numbered from 1 and - * refer to sections in order they appear in the load commands for the file - * they are in. This means the same ordinal may very well refer to different - * sections in different files. - * - * The n_value field for all symbol table entries (including N_STAB's) gets - * updated by the link editor based on the value of it's n_sect field and where - * the section n_sect references gets relocated. If the value of the n_sect - * field is NO_SECT then it's n_value field is not changed by the link editor. - */ -#define NO_SECT 0 /* symbol is not in any section */ -#define MAX_SECT 255 /* 1 thru 255 inclusive */ - -/* - * Common symbols are represented by undefined (N_UNDF) external (N_EXT) types - * who's values (n_value) are non-zero. In which case the value of the n_value - * field is the size (in bytes) of the common symbol. The n_sect field is set - * to NO_SECT. The alignment of a common symbol may be set as a power of 2 - * between 2^1 and 2^15 as part of the n_desc field using the macros below. If - * the alignment is not set (a value of zero) then natural alignment based on - * the size is used. - */ -#define GET_COMM_ALIGN(n_desc) (((n_desc) >> 8) & 0x0f) -#define SET_COMM_ALIGN(n_desc,align) \ - (n_desc) = (((n_desc) & 0xf0ff) | (((align) & 0x0f) << 8)) - -/* - * To support the lazy binding of undefined symbols in the dynamic link-editor, - * the undefined symbols in the symbol table (the nlist structures) are marked - * with the indication if the undefined reference is a lazy reference or - * non-lazy reference. If both a non-lazy reference and a lazy reference is - * made to the same symbol the non-lazy reference takes precedence. A reference - * is lazy only when all references to that symbol are made through a symbol - * pointer in a lazy symbol pointer section. - * - * The implementation of marking nlist structures in the symbol table for - * undefined symbols will be to use some of the bits of the n_desc field as a - * reference type. The mask REFERENCE_TYPE will be applied to the n_desc field - * of an nlist structure for an undefined symbol to determine the type of - * undefined reference (lazy or non-lazy). - * - * The constants for the REFERENCE FLAGS are propagated to the reference table - * in a shared library file. In that case the constant for a defined symbol, - * REFERENCE_FLAG_DEFINED, is also used. - */ -/* Reference type bits of the n_desc field of undefined symbols */ -#define REFERENCE_TYPE 0x7 -/* types of references */ -#define REFERENCE_FLAG_UNDEFINED_NON_LAZY 0 -#define REFERENCE_FLAG_UNDEFINED_LAZY 1 -#define REFERENCE_FLAG_DEFINED 2 -#define REFERENCE_FLAG_PRIVATE_DEFINED 3 -#define REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY 4 -#define REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY 5 - -/* - * To simplify stripping of objects that use are used with the dynamic link - * editor, the static link editor marks the symbols defined an object that are - * referenced by a dynamicly bound object (dynamic shared libraries, bundles). - * With this marking strip knows not to strip these symbols. - */ -#define REFERENCED_DYNAMICALLY 0x0010 - -/* - * For images created by the static link editor with the -twolevel_namespace - * option in effect the flags field of the mach header is marked with - * MH_TWOLEVEL. And the binding of the undefined references of the image are - * determined by the static link editor. Which library an undefined symbol is - * bound to is recorded by the static linker in the high 8 bits of the n_desc - * field using the SET_LIBRARY_ORDINAL macro below. The ordinal recorded - * references the libraries listed in the Mach-O's LC_LOAD_DYLIB, - * LC_LOAD_WEAK_DYLIB, LC_REEXPORT_DYLIB, LC_LOAD_UPWARD_DYLIB, and - * LC_LAZY_LOAD_DYLIB, etc. load commands in the order they appear in the - * headers. The library ordinals start from 1. - * For a dynamic library that is built as a two-level namespace image the - * undefined references from module defined in another use the same nlist struct - * an in that case SELF_LIBRARY_ORDINAL is used as the library ordinal. For - * defined symbols in all images they also must have the library ordinal set to - * SELF_LIBRARY_ORDINAL. The EXECUTABLE_ORDINAL refers to the executable - * image for references from plugins that refer to the executable that loads - * them. - * - * The DYNAMIC_LOOKUP_ORDINAL is for undefined symbols in a two-level namespace - * image that are looked up by the dynamic linker with flat namespace semantics. - * This ordinal was added as a feature in Mac OS X 10.3 by reducing the - * value of MAX_LIBRARY_ORDINAL by one. So it is legal for existing binaries - * or binaries built with older tools to have 0xfe (254) dynamic libraries. In - * this case the ordinal value 0xfe (254) must be treated as a library ordinal - * for compatibility. - */ -#define GET_LIBRARY_ORDINAL(n_desc) (((n_desc) >> 8) & 0xff) -#define SET_LIBRARY_ORDINAL(n_desc,ordinal) \ - (n_desc) = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8)) -#define SELF_LIBRARY_ORDINAL 0x0 -#define MAX_LIBRARY_ORDINAL 0xfd -#define DYNAMIC_LOOKUP_ORDINAL 0xfe -#define EXECUTABLE_ORDINAL 0xff - -/* - * The bit 0x0020 of the n_desc field is used for two non-overlapping purposes - * and has two different symbolic names, N_NO_DEAD_STRIP and N_DESC_DISCARDED. - */ - -/* - * The N_NO_DEAD_STRIP bit of the n_desc field only ever appears in a - * relocatable .o file (MH_OBJECT filetype). And is used to indicate to the - * static link editor it is never to dead strip the symbol. - */ -#define N_NO_DEAD_STRIP 0x0020 /* symbol is not to be dead stripped */ - -/* - * The N_DESC_DISCARDED bit of the n_desc field never appears in linked image. - * But is used in very rare cases by the dynamic link editor to mark an in - * memory symbol as discared and longer used for linking. - */ -#define N_DESC_DISCARDED 0x0020 /* symbol is discarded */ - -/* - * The N_WEAK_REF bit of the n_desc field indicates to the dynamic linker that - * the undefined symbol is allowed to be missing and is to have the address of - * zero when missing. - */ -#define N_WEAK_REF 0x0040 /* symbol is weak referenced */ - -/* - * The N_WEAK_DEF bit of the n_desc field indicates to the static and dynamic - * linkers that the symbol definition is weak, allowing a non-weak symbol to - * also be used which causes the weak definition to be discared. Currently this - * is only supported for symbols in coalesed sections. - */ -#define N_WEAK_DEF 0x0080 /* coalesed symbol is a weak definition */ - -/* - * The N_REF_TO_WEAK bit of the n_desc field indicates to the dynamic linker - * that the undefined symbol should be resolved using flat namespace searching. - */ -#define N_REF_TO_WEAK 0x0080 /* reference to a weak symbol */ - -/* - * The N_ARM_THUMB_DEF bit of the n_desc field indicates that the symbol is - * a defintion of a Thumb function. - */ -#define N_ARM_THUMB_DEF 0x0008 /* symbol is a Thumb function (ARM) */ - -/* - * The N_SYMBOL_RESOLVER bit of the n_desc field indicates that the - * that the function is actually a resolver function and should - * be called to get the address of the real function to use. - * This bit is only available in .o files (MH_OBJECT filetype) - */ -#define N_SYMBOL_RESOLVER 0x0100 - -#ifndef __STRICT_BSD__ -#if __cplusplus -extern "C" { -#endif /* __cplusplus */ -/* - * The function nlist(3) from the C library. - */ -extern int nlist (const char *filename, struct nlist *list); -#if __cplusplus -} -#endif /* __cplusplus */ -#endif /* __STRICT_BSD__ */ - -#endif /* _MACHO_LIST_H_ */ |