Ian Lance Taylor
33 years ago
3 changed files with 379 additions and 75 deletions
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/* NLM (NetWare Loadable Module) support for BFD.
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Copyright (C) 1993 Free Software Foundation, Inc. |
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Written by Fred Fish @ Cygnus Support. |
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This file is part of BFD, the Binary File Descriptor library. |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ |
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/* This file is part of NLM support for BFD, and contains the portions
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that describe how NLM is represented internally in the BFD library. |
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I.E. it describes the in-memory representation of NLM. It requires |
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the nlm/common.h file which contains the portions that are common to |
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both the internal and external representations. */ |
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#if 0 |
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/* Types used by various structures, functions, etc. */ |
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typedef unsigned long Nlm32_Addr; /* Unsigned program address */ |
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typedef unsigned long Nlm32_Off; /* Unsigned file offset */ |
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typedef long Nlm32_Sword; /* Signed large integer */ |
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typedef unsigned long Nlm32_Word; /* Unsigned large integer */ |
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typedef unsigned short Nlm32_Half; /* Unsigned medium integer */ |
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typedef unsigned char Nlm32_Char; /* Unsigned tiny integer */ |
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#ifdef HOST_64_BIT |
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typedef unsigned HOST_64_BIT Nlm64_Addr; |
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typedef unsigned HOST_64_BIT Nlm64_Off; |
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typedef HOST_64_BIT Nlm64_Sxword; |
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typedef unsigned HOST_64_BIT Nlm64_Xword; |
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#endif |
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typedef long Nlm64_Sword; |
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typedef unsigned long Nlm64_Word; |
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typedef unsigned short Nlm64_Half; |
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#endif /* 0 */ |
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/* This structure contains the internal form of the portion of the NLM
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header that is fixed length. */ |
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typedef struct nlm_internal_fixed_header |
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{ |
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/* The signature field identifies the file as an NLM. It must contain
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the signature string, which depends upon the NLM target. */ |
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char signature[NLM_SIGNATURE_SIZE]; |
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/* The version of the header. At this time, the highest version number
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is 4. */ |
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long version; |
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/* The name of the module, which must be a DOS name (1-8 characters followed
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by a period and a 1-3 character extension. The first byte is the byte |
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length of the name and the last byte is a null terminator byte. This |
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field is fixed length, and any unused bytes should be null bytes. The |
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value is set by the OUTPUT keyword to NLMLINK. */ |
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char moduleName[NLM_MODULE_NAME_SIZE]; |
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/* The byte offset of the code image from the start of the file. */ |
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file_ptr codeImageOffset; |
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/* The size of the code image, in bytes. */ |
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bfd_size_type codeImageSize; |
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/* The byte offset of the data image from the start of the file. */ |
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file_ptr dataImageOffset; |
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/* The size of the data image, in bytes. */ |
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bfd_size_type dataImageSize; |
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/* The size of the uninitialized data region that the loader is to be
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allocated at load time. Uninitialized data follows the initialized |
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data in the NLM address space. */ |
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bfd_size_type uninitializedDataSize; |
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/* The byte offset of the custom data from the start of the file. The
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custom data is set by the CUSTOM keyword to NLMLINK. */ |
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file_ptr customDataOffset; |
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/* The size of the custom data, in bytes. */ |
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bfd_size_type customDataSize; |
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/* The byte offset of the module dependencies from the start of the file.
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The module dependencies are determined by the MODULE keyword in |
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NLMLINK. */ |
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file_ptr moduleDependencyOffset; |
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/* The number of module dependencies at the moduleDependencyOffset. */ |
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long numberOfModuleDependencies; |
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/* The byte offset of the relocation fixup data from the start of the file */ |
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file_ptr relocationFixupOffset; |
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long numberOfRelocationFixups; |
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file_ptr externalReferencesOffset; |
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long numberOfExternalReferences; |
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file_ptr publicsOffset; |
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long numberOfPublics; |
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file_ptr debugInfoOffset; |
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long numberOfDebugRecords; |
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file_ptr codeStartOffset; |
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file_ptr exitProcedureOffset; |
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file_ptr checkUnloadProcedureOffset; |
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long moduleType; |
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long flags; |
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} Nlm_Internal_Fixed_Header; |
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#define nlm32_internal_fixed_header nlm_internal_fixed_header |
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#define Nlm32_Internal_Fixed_Header Nlm_Internal_Fixed_Header |
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#define nlm64_internal_fixed_header nlm_internal_fixed_header |
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#define Nlm64_Internal_Fixed_Header Nlm_Internal_Fixed_Header |
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/* This structure contains the portions of the NLM header that are either
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variable in size in the external representation, or else are not at a |
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fixed offset relative to the start of the NLM header due to preceding |
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variable sized fields. |
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Note that all the fields must exist in the external header, and in |
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the order used here (the same order is used in the internal form |
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for consistency, not out of necessity). */ |
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typedef struct nlm_internal_variable_header |
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{ |
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/* The descriptionLength field contains the length of the text in
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descriptionText, excluding the null terminator. The descriptionText |
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field contains the NLM description obtained from the DESCRIPTION |
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keyword in NLMLINK plus the null byte terminator. The descriptionText |
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can be up to NLM_MAX_DESCRIPTION_LENGTH characters. */ |
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unsigned char descriptionLength; |
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char descriptionText[NLM_MAX_DESCRIPTION_LENGTH + 1]; |
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/* The stackSize field contains the size of the stack in bytes, as
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specified by the STACK or STACKSIZE keyword in NLMLINK. If no size |
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is specified, the default is NLM_DEFAULT_STACKSIZE. */ |
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long stackSize; |
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/* The reserved field is included only for completeness. It should contain
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zero. */ |
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long reserved; |
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/* This field is fixed length, should contain " LONG" (note leading
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space), and is unused. */ |
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char oldThreadName[NLM_OLD_THREAD_NAME_LENGTH]; |
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/* The screenNameLength field contains the length of the actual text stored
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in the screenName field, excluding the null byte terminator. The |
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screenName field contains the screen name as specified by the SCREENNAME |
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keyword in NLMLINK, and can be up to NLM_MAX_SCREEN_NAME_LENGTH |
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characters. */ |
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unsigned char screenNameLength; |
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char screenName[NLM_MAX_SCREEN_NAME_LENGTH + 1]; |
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/* The threadNameLength field contains the length of the actual text stored
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in the threadName field, excluding the null byte terminator. The |
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threadName field contains the thread name as specified by the THREADNAME |
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keyword in NLMLINK, and can be up to NLM_MAX_THREAD_NAME_LENGTH |
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characters. */ |
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unsigned char threadNameLength; |
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char threadName[NLM_MAX_THREAD_NAME_LENGTH + 1]; |
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} Nlm_Internal_Variable_Header; |
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#define nlm32_internal_variable_header nlm_internal_variable_header |
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#define Nlm32_Internal_Variable_Header Nlm_Internal_Variable_Header |
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#define nlm64_internal_variable_header nlm_internal_variable_header |
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#define Nlm64_Internal_Variable_Header Nlm_Internal_Variable_Header |
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/* The version header is one of the optional auxiliary headers and
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follows the fixed length and variable length NLM headers. */ |
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typedef struct nlm_internal_version_header |
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{ |
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/* The header is recognized by "VeRsIoN#" in the stamp field. */ |
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char stamp[8]; |
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long majorVersion; |
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long minorVersion; |
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long revision; |
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long year; |
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long month; |
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long day; |
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} Nlm_Internal_Version_Header; |
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#define nlm32_internal_version_header nlm_internal_version_header |
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#define Nlm32_Internal_Version_Header Nlm_Internal_Version_Header |
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#define nlm64_internal_version_header nlm_internal_version_header |
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#define Nlm64_Internal_Version_Header Nlm_Internal_Version_Header |
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typedef struct nlm_internal_copyright_header |
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{ |
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/* The header is recognized by "CoPyRiGhT=" in the stamp field. */ |
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char stamp[10]; |
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unsigned char copyrightMessageLength; |
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char copyrightMessage[NLM_MAX_COPYRIGHT_MESSAGE_LENGTH]; |
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} Nlm_Internal_Copyright_Header; |
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#define nlm32_internal_copyright_header nlm_internal_copyright_header |
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#define Nlm32_Internal_Copyright_Header Nlm_Internal_Copyright_Header |
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#define nlm64_internal_copyright_header nlm_internal_copyright_header |
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#define Nlm64_Internal_Copyright_Header Nlm_Internal_Copyright_Header |
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typedef struct nlm_internal_extended_header |
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{ |
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/* The header is recognized by "MeSsAgEs" in the stamp field. */ |
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char stamp[8]; |
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long languageID; |
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file_ptr messageFileOffset; |
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bfd_size_type messageFileLength; |
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long messageCount; |
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file_ptr helpFileOffset; |
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bfd_size_type helpFileLength; |
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file_ptr RPCDataOffset; |
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bfd_size_type RPCDataLength; |
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file_ptr sharedCodeOffset; |
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bfd_size_type sharedCodeLength; |
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file_ptr sharedDataOffset; |
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bfd_size_type sharedDataLength; |
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file_ptr sharedRelocationFixupOffset; |
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long sharedRelocationFixupCount; |
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file_ptr sharedExternalReferenceOffset; |
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long sharedExternalReferenceCount; |
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file_ptr sharedPublicsOffset; |
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long sharedPublicsCount; |
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bfd_vma SharedInitializationOffset; |
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bfd_vma SharedExitProcedureOffset; |
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long productID; |
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long reserved0; |
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long reserved1; |
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long reserved2; |
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long reserved3; |
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long reserved4; |
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long reserved5; |
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} Nlm_Internal_Extended_Header; |
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#define nlm32_internal_extended_header nlm_internal_extended_header |
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#define Nlm32_Internal_Extended_Header Nlm_Internal_Extended_Header |
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#define nlm64_internal_extended_header nlm_internal_extended_header |
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#define Nlm64_Internal_Extended_Header Nlm_Internal_Extended_Header |
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typedef struct nlm_internal_custom_header |
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{ |
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/* The header is recognized by "CuStHeAd" in the stamp field. */ |
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char stamp[8]; |
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bfd_size_type dataLength; |
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file_ptr debugRecOffset; |
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bfd_size_type debugRecLength; |
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} Nlm_Internal_Custom_Header; |
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#define nlm32_internal_custom_header nlm_internal_custom_header |
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#define Nlm32_Internal_Custom_Header Nlm_Internal_Custom_Header |
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#define nlm64_internal_custom_header nlm_internal_custom_header |
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#define Nlm64_Internal_Custom_Header Nlm_Internal_Custom_Header |
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