source: trunk/libs/newlib/src/include/nlm/common.h @ 656

/* NLM (NetWare Loadable Module) support for BFD.
   Copyright 1993, 2001, 2005, 2010 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 3 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., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

/* This file is part of NLM support for BFD, and contains the portions
   that are common to both the internal and external representations.  */

/* If NLM_ARCH_SIZE is not defined, default to 32.  NLM_ARCH_SIZE is
   optionally defined by the application.  */

#ifndef NLM_ARCH_SIZE
#  define NLM_ARCH_SIZE                 32
#endif

/* Due to horrible details of ANSI macro expansion, we can't use CONCAT4
   for NLM_NAME.  CONCAT2 is used in BFD_JUMP_TABLE macros, and some of
   them will expand to tokens that themselves are macros defined in terms
   of NLM_NAME.  If NLM_NAME were defined using CONCAT4 (which is itself
   defined in bfd-in.h using CONCAT2), ANSI preprocessor rules say that
   the CONCAT2 within NLM_NAME should not be expanded.
   So use another name.  */
#if defined (__STDC__) || defined (ALMOST_STDC) || defined (HAVE_STRINGIZE)
#ifdef SABER
#define NLM_CAT4(a,b,c,d) a##b##c##d
#else
/* This hack is to avoid a problem with some strict ANSI C preprocessors.
   The problem is, "32_" is not a valid preprocessing token, and we don't
   want extra underscores (e.g., "nlm_32_").  The NLM_XCAT2 macro will
   cause the inner CAT2 macros to be evaluated first, producing
   still-valid pp-tokens.  Then the final concatenation can be done.  */
#define NLM_CAT2(a,b)     a##b
#define NLM_XCAT2(a,b)    NLM_CAT2(a,b)
#define NLM_CAT4(a,b,c,d) NLM_XCAT2(NLM_CAT2(a,b),NLM_CAT2(c,d))
#endif
#else
#define NLM_CAT4(a,b,c,d) a/**/b/**/c/**/d
#endif

#if NLM_ARCH_SIZE == 32
#  define NLM_TARGET_LONG_SIZE          4
#  define NLM_TARGET_ADDRESS_SIZE       4
#  define NLM_NAME(x,y)                 NLM_CAT4(x,32,_,y)
#  define NLM_HIBIT                     (((bfd_vma) 1) << 31)
#endif
#if NLM_ARCH_SIZE == 64
#  define NLM_TARGET_LONG_SIZE          8
#  define NLM_TARGET_ADDRESS_SIZE       8
#  define NLM_NAME(x,y)                 NLM_CAT4(x,64,_,y)
#  define NLM_HIBIT                     (((bfd_vma) 1) << 63)
#endif

#define NlmNAME(X)              NLM_NAME(Nlm,X)
#define nlmNAME(X)              NLM_NAME(nlm,X)

/* Give names to things that should not change. */

#define NLM_MAX_DESCRIPTION_LENGTH              127
#define NLM_MAX_SCREEN_NAME_LENGTH              71
#define NLM_MAX_THREAD_NAME_LENGTH              71
#define NLM_MAX_COPYRIGHT_MESSAGE_LENGTH        255
#define NLM_OTHER_DATA_LENGTH                   400             /* FIXME */
#define NLM_OLD_THREAD_NAME_LENGTH              5
#define NLM_SIGNATURE_SIZE                      24
#define NLM_HEADER_VERSION                      4
#define NLM_MODULE_NAME_SIZE                    14
#define NLM_DEFAULT_STACKSIZE                   (8 * 1024)

/* Alpha information.  This should probably be in a separate Alpha
   header file, but it can't go in alpha-ext.h because some of it is
   needed by nlmconv.c.  */

/* Magic number in Alpha prefix header.  */
#define NLM32_ALPHA_MAGIC (0x83561840)

/* The r_type field in an Alpha reloc is one of the following values.  */
#define ALPHA_R_IGNORE          0
#define ALPHA_R_REFLONG         1
#define ALPHA_R_REFQUAD         2
#define ALPHA_R_GPREL32         3
#define ALPHA_R_LITERAL         4
#define ALPHA_R_LITUSE          5
#define ALPHA_R_GPDISP          6
#define ALPHA_R_BRADDR          7
#define ALPHA_R_HINT            8
#define ALPHA_R_SREL16          9
#define ALPHA_R_SREL32         10
#define ALPHA_R_SREL64         11
#define ALPHA_R_OP_PUSH        12
#define ALPHA_R_OP_STORE       13
#define ALPHA_R_OP_PSUB        14
#define ALPHA_R_OP_PRSHIFT     15
#define ALPHA_R_GPVALUE        16
#define ALPHA_R_NW_RELOC      250

/* A local reloc, other than ALPHA_R_GPDISP or ALPHA_R_IGNORE, must be
   against one of these symbol indices.  */
#define ALPHA_RELOC_SECTION_TEXT        1
#define ALPHA_RELOC_SECTION_DATA        3

/* An ALPHA_R_NW_RELOC has one of these values in the size field.  If
   it is SETGP, the r_vaddr field holds the GP value to use.  If it is
   LITA, the r_vaddr field holds the address of the .lita section and
   the r_symndx field holds the size of the .lita section.  */
#define ALPHA_R_NW_RELOC_SETGP  1
#define ALPHA_R_NW_RELOC_LITA   2