310 lines
11 KiB
C
310 lines
11 KiB
C
/* NLM (NetWare Loadable Module) support for BFD.
|
|
Copyright 1993, 1994 Free Software Foundation, Inc.
|
|
|
|
Written by Fred Fish @ Cygnus Support.
|
|
|
|
This file is part of BFD, the Binary File Descriptor library.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program; if not, write to the Free Software
|
|
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
|
|
|
|
|
|
/* This file is part of NLM support for BFD, and contains the portions
|
|
that describe how NLM is represented internally in the BFD library.
|
|
I.E. it describes the in-memory representation of NLM. It requires
|
|
the nlm/common.h file which contains the portions that are common to
|
|
both the internal and external representations. */
|
|
|
|
#if 0
|
|
|
|
/* Types used by various structures, functions, etc. */
|
|
|
|
typedef unsigned long Nlm32_Addr; /* Unsigned program address */
|
|
typedef unsigned long Nlm32_Off; /* Unsigned file offset */
|
|
typedef long Nlm32_Sword; /* Signed large integer */
|
|
typedef unsigned long Nlm32_Word; /* Unsigned large integer */
|
|
typedef unsigned short Nlm32_Half; /* Unsigned medium integer */
|
|
typedef unsigned char Nlm32_Char; /* Unsigned tiny integer */
|
|
|
|
#ifdef BFD_HOST_64_BIT
|
|
typedef unsigned BFD_HOST_64_BIT Nlm64_Addr;
|
|
typedef unsigned BFD_HOST_64_BIT Nlm64_Off;
|
|
typedef BFD_HOST_64_BIT Nlm64_Sxword;
|
|
typedef unsigned BFD_HOST_64_BIT Nlm64_Xword;
|
|
#endif
|
|
typedef long Nlm64_Sword;
|
|
typedef unsigned long Nlm64_Word;
|
|
typedef unsigned short Nlm64_Half;
|
|
|
|
#endif /* 0 */
|
|
|
|
/* This structure contains the internal form of the portion of the NLM
|
|
header that is fixed length. */
|
|
|
|
typedef struct nlm_internal_fixed_header
|
|
{
|
|
/* The signature field identifies the file as an NLM. It must contain
|
|
the signature string, which depends upon the NLM target. */
|
|
|
|
char signature[NLM_SIGNATURE_SIZE];
|
|
|
|
/* The version of the header. At this time, the highest version number
|
|
is 4. */
|
|
|
|
long version;
|
|
|
|
/* The name of the module, which must be a DOS name (1-8 characters followed
|
|
by a period and a 1-3 character extension. The first byte is the byte
|
|
length of the name and the last byte is a null terminator byte. This
|
|
field is fixed length, and any unused bytes should be null bytes. The
|
|
value is set by the OUTPUT keyword to NLMLINK. */
|
|
|
|
char moduleName[NLM_MODULE_NAME_SIZE];
|
|
|
|
/* The byte offset of the code image from the start of the file. */
|
|
|
|
file_ptr codeImageOffset;
|
|
|
|
/* The size of the code image, in bytes. */
|
|
|
|
bfd_size_type codeImageSize;
|
|
|
|
/* The byte offset of the data image from the start of the file. */
|
|
|
|
file_ptr dataImageOffset;
|
|
|
|
/* The size of the data image, in bytes. */
|
|
|
|
bfd_size_type dataImageSize;
|
|
|
|
/* The size of the uninitialized data region that the loader is to be
|
|
allocated at load time. Uninitialized data follows the initialized
|
|
data in the NLM address space. */
|
|
|
|
bfd_size_type uninitializedDataSize;
|
|
|
|
/* The byte offset of the custom data from the start of the file. The
|
|
custom data is set by the CUSTOM keyword to NLMLINK. */
|
|
|
|
file_ptr customDataOffset;
|
|
|
|
/* The size of the custom data, in bytes. */
|
|
|
|
bfd_size_type customDataSize;
|
|
|
|
/* The byte offset of the module dependencies from the start of the file.
|
|
The module dependencies are determined by the MODULE keyword in
|
|
NLMLINK. */
|
|
|
|
file_ptr moduleDependencyOffset;
|
|
|
|
/* The number of module dependencies at the moduleDependencyOffset. */
|
|
|
|
long numberOfModuleDependencies;
|
|
|
|
/* The byte offset of the relocation fixup data from the start of the file */
|
|
|
|
file_ptr relocationFixupOffset;
|
|
long numberOfRelocationFixups;
|
|
file_ptr externalReferencesOffset;
|
|
long numberOfExternalReferences;
|
|
file_ptr publicsOffset;
|
|
long numberOfPublics;
|
|
file_ptr debugInfoOffset;
|
|
long numberOfDebugRecords;
|
|
file_ptr codeStartOffset;
|
|
file_ptr exitProcedureOffset;
|
|
file_ptr checkUnloadProcedureOffset;
|
|
long moduleType;
|
|
long flags;
|
|
} Nlm_Internal_Fixed_Header;
|
|
|
|
#define nlm32_internal_fixed_header nlm_internal_fixed_header
|
|
#define Nlm32_Internal_Fixed_Header Nlm_Internal_Fixed_Header
|
|
#define nlm64_internal_fixed_header nlm_internal_fixed_header
|
|
#define Nlm64_Internal_Fixed_Header Nlm_Internal_Fixed_Header
|
|
|
|
/* This structure contains the portions of the NLM header that are either
|
|
variable in size in the external representation, or else are not at a
|
|
fixed offset relative to the start of the NLM header due to preceding
|
|
variable sized fields.
|
|
|
|
Note that all the fields must exist in the external header, and in
|
|
the order used here (the same order is used in the internal form
|
|
for consistency, not out of necessity). */
|
|
|
|
typedef struct nlm_internal_variable_header
|
|
{
|
|
|
|
/* The descriptionLength field contains the length of the text in
|
|
descriptionText, excluding the null terminator. The descriptionText
|
|
field contains the NLM description obtained from the DESCRIPTION
|
|
keyword in NLMLINK plus the null byte terminator. The descriptionText
|
|
can be up to NLM_MAX_DESCRIPTION_LENGTH characters. */
|
|
|
|
unsigned char descriptionLength;
|
|
char descriptionText[NLM_MAX_DESCRIPTION_LENGTH + 1];
|
|
|
|
/* The stackSize field contains the size of the stack in bytes, as
|
|
specified by the STACK or STACKSIZE keyword in NLMLINK. If no size
|
|
is specified, the default is NLM_DEFAULT_STACKSIZE. */
|
|
|
|
long stackSize;
|
|
|
|
/* The reserved field is included only for completeness. It should contain
|
|
zero. */
|
|
|
|
long reserved;
|
|
|
|
/* This field is fixed length, should contain " LONG" (note leading
|
|
space), and is unused. */
|
|
|
|
char oldThreadName[NLM_OLD_THREAD_NAME_LENGTH];
|
|
|
|
/* The screenNameLength field contains the length of the actual text stored
|
|
in the screenName field, excluding the null byte terminator. The
|
|
screenName field contains the screen name as specified by the SCREENNAME
|
|
keyword in NLMLINK, and can be up to NLM_MAX_SCREEN_NAME_LENGTH
|
|
characters. */
|
|
|
|
unsigned char screenNameLength;
|
|
char screenName[NLM_MAX_SCREEN_NAME_LENGTH + 1];
|
|
|
|
/* The threadNameLength field contains the length of the actual text stored
|
|
in the threadName field, excluding the null byte terminator. The
|
|
threadName field contains the thread name as specified by the THREADNAME
|
|
keyword in NLMLINK, and can be up to NLM_MAX_THREAD_NAME_LENGTH
|
|
characters. */
|
|
|
|
unsigned char threadNameLength;
|
|
char threadName[NLM_MAX_THREAD_NAME_LENGTH + 1];
|
|
|
|
} Nlm_Internal_Variable_Header;
|
|
|
|
#define nlm32_internal_variable_header nlm_internal_variable_header
|
|
#define Nlm32_Internal_Variable_Header Nlm_Internal_Variable_Header
|
|
#define nlm64_internal_variable_header nlm_internal_variable_header
|
|
#define Nlm64_Internal_Variable_Header Nlm_Internal_Variable_Header
|
|
|
|
/* The version header is one of the optional auxiliary headers and
|
|
follows the fixed length and variable length NLM headers. */
|
|
|
|
typedef struct nlm_internal_version_header
|
|
{
|
|
/* The header is recognized by "VeRsIoN#" in the stamp field. */
|
|
char stamp[8];
|
|
long majorVersion;
|
|
long minorVersion;
|
|
long revision;
|
|
long year;
|
|
long month;
|
|
long day;
|
|
} Nlm_Internal_Version_Header;
|
|
|
|
#define nlm32_internal_version_header nlm_internal_version_header
|
|
#define Nlm32_Internal_Version_Header Nlm_Internal_Version_Header
|
|
#define nlm64_internal_version_header nlm_internal_version_header
|
|
#define Nlm64_Internal_Version_Header Nlm_Internal_Version_Header
|
|
|
|
typedef struct nlm_internal_copyright_header
|
|
{
|
|
/* The header is recognized by "CoPyRiGhT=" in the stamp field. */
|
|
char stamp[10];
|
|
unsigned char copyrightMessageLength;
|
|
char copyrightMessage[NLM_MAX_COPYRIGHT_MESSAGE_LENGTH];
|
|
} Nlm_Internal_Copyright_Header;
|
|
|
|
#define nlm32_internal_copyright_header nlm_internal_copyright_header
|
|
#define Nlm32_Internal_Copyright_Header Nlm_Internal_Copyright_Header
|
|
#define nlm64_internal_copyright_header nlm_internal_copyright_header
|
|
#define Nlm64_Internal_Copyright_Header Nlm_Internal_Copyright_Header
|
|
|
|
typedef struct nlm_internal_extended_header
|
|
{
|
|
/* The header is recognized by "MeSsAgEs" in the stamp field. */
|
|
char stamp[8];
|
|
long languageID;
|
|
file_ptr messageFileOffset;
|
|
bfd_size_type messageFileLength;
|
|
long messageCount;
|
|
file_ptr helpFileOffset;
|
|
bfd_size_type helpFileLength;
|
|
file_ptr RPCDataOffset;
|
|
bfd_size_type RPCDataLength;
|
|
file_ptr sharedCodeOffset;
|
|
bfd_size_type sharedCodeLength;
|
|
file_ptr sharedDataOffset;
|
|
bfd_size_type sharedDataLength;
|
|
file_ptr sharedRelocationFixupOffset;
|
|
long sharedRelocationFixupCount;
|
|
file_ptr sharedExternalReferenceOffset;
|
|
long sharedExternalReferenceCount;
|
|
file_ptr sharedPublicsOffset;
|
|
long sharedPublicsCount;
|
|
file_ptr sharedDebugRecordOffset;
|
|
long sharedDebugRecordCount;
|
|
bfd_vma SharedInitializationOffset;
|
|
bfd_vma SharedExitProcedureOffset;
|
|
long productID;
|
|
long reserved0;
|
|
long reserved1;
|
|
long reserved2;
|
|
long reserved3;
|
|
long reserved4;
|
|
long reserved5;
|
|
} Nlm_Internal_Extended_Header;
|
|
|
|
#define nlm32_internal_extended_header nlm_internal_extended_header
|
|
#define Nlm32_Internal_Extended_Header Nlm_Internal_Extended_Header
|
|
#define nlm64_internal_extended_header nlm_internal_extended_header
|
|
#define Nlm64_Internal_Extended_Header Nlm_Internal_Extended_Header
|
|
|
|
/* The format of a custom header as stored internally is different
|
|
from the external format. This is how we store a custom header
|
|
which we do not recognize. */
|
|
|
|
typedef struct nlm_internal_custom_header
|
|
{
|
|
/* The header is recognized by "CuStHeAd" in the stamp field. */
|
|
char stamp[8];
|
|
bfd_size_type hdrLength;
|
|
file_ptr dataOffset;
|
|
bfd_size_type dataLength;
|
|
char dataStamp[8];
|
|
PTR hdr;
|
|
} Nlm_Internal_Custom_Header;
|
|
|
|
#define nlm32_internal_custom_header nlm_internal_custom_header
|
|
#define Nlm32_Internal_Custom_Header Nlm_Internal_Custom_Header
|
|
#define nlm64_internal_custom_header nlm_internal_custom_header
|
|
#define Nlm64_Internal_Custom_Header Nlm_Internal_Custom_Header
|
|
|
|
/* The internal Cygnus header is written out externally as a custom
|
|
header. We don't try to replicate that structure here. */
|
|
|
|
typedef struct nlm_internal_cygnus_ext_header
|
|
{
|
|
/* The header is recognized by "CyGnUsEx" in the stamp field. */
|
|
char stamp[8];
|
|
/* File location of debugging information. */
|
|
file_ptr offset;
|
|
/* Length of debugging information. */
|
|
bfd_size_type length;
|
|
} Nlm_Internal_Cygnus_Ext_Header;
|
|
|
|
#define nlm32_internal_cygnus_ext_header nlm_internal_cygnus_ext_header
|
|
#define Nlm32_Internal_Cygnus_Ext_Header Nlm_Internal_Cygnus_Ext_Header
|
|
#define nlm64_internal_cygnus_ext_header nlm_internal_cygnus_ext_header
|
|
#define Nlm64_Internal_Cygnus_Ext_Header Nlm_Internal_Cygnus_Ext_Header
|