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Annotation of gcc/config/m88k/sysv4.h, revision 1.1.1.4

1.1       root        1: /* Definitions of target machine for GNU compiler.
                      2:    Motorola 88100 in an 88open ABI environment.
                      3:    Copyright (C) 1990, 1991 Free Software Foundation, Inc.
1.1.1.3   root        4: 
                      5:    Written by Ron Guilmette ([email protected]).
1.1       root        6:    Contributed to FSF by Network Computing Devices.
1.1.1.3   root        7: 
1.1       root        8:    Other contributions by Vince Guarna ([email protected]),
                      9:    Ray Essick ([email protected]), Wilson Tien ([email protected]),
                     10:    and Tom Wood ([email protected])
                     11: 
                     12: This file is part of GNU CC.
                     13: 
                     14: GNU CC is free software; you can redistribute it and/or modify
                     15: it under the terms of the GNU General Public License as published by
                     16: the Free Software Foundation; either version 2, or (at your option)
                     17: any later version.
                     18: 
                     19: GNU CC is distributed in the hope that it will be useful,
                     20: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     21: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     22: GNU General Public License for more details.
                     23: 
                     24: You should have received a copy of the GNU General Public License
                     25: along with GNU CC; see the file COPYING.  If not, write to
1.1.1.4 ! root       26: the Free Software Foundation, 59 Temple Place - Suite 330,
        !            27: Boston, MA 02111-1307, USA.  */
1.1       root       28: 
                     29: /* DWARF_DEBUGGING_INFO defined in svr4.h.  */
                     30: 
                     31: #ifndef NO_BUGS
                     32: #define AS_BUG_DOT_LABELS
                     33: #define AS_BUG_POUND_TYPE
                     34: #endif
                     35: 
                     36: #include "svr4.h"
                     37: #include "m88k/m88k.h"
                     38: 
                     39: /* Identify the compiler.  */
                     40: #undef  VERSION_INFO1
                     41: #define VERSION_INFO1 "88open ABI, "
                     42: 
                     43: /* Default switches */
                     44: #undef TARGET_DEFAULT
                     45: #define TARGET_DEFAULT (MASK_CHECK_ZERO_DIV | \
                     46:                         MASK_OCS_DEBUG_INFO | \
                     47:                         MASK_SVR4)
                     48: 
                     49: /* Cpp spec.  These pre-assertions are needed for SVR4 as they occur
                     50:    often in the system header files.  __svr4__ is our extension.  */
                     51: 
                     52: #undef  CPP_PREDEFINES
                     53: #define CPP_PREDEFINES \
1.1.1.2   root       54:   "-Dm88000 -Dm88k -Dunix -D__svr4__ -Amachine(m88k) -Acpu(m88k) -Asystem(unix) -Asystem(svr4)"
1.1       root       55: 
                     56: /* For the AT&T SVR4 port, the function is _mcount.  */
                     57: #undef FUNCTION_PROFILER
                     58: #define FUNCTION_PROFILER(FILE, LABELNO) \
                     59:   output_function_profiler (FILE, LABELNO, "_mcount", 1)
                     60: 
                     61: /* Override svr4.h and m88k.h.  */
                     62: #undef INIT_SECTION_ASM_OP
                     63: #define INIT_SECTION_ASM_OP "section\t.init,\"xa\",#progbits"
1.1.1.4 ! root       64: #undef FINI_SECTION_ASM_OP
        !            65: #define FINI_SECTION_ASM_OP "section\t.fini,\"xa\",#progbits"
        !            66: 
        !            67: /* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
        !            68:  
        !            69:    Note that we want to give these sections the SHF_WRITE attribute
        !            70:    because these sections will actually contain data (i.e. tables of
        !            71:    addresses of functions in the current root executable or shared library
        !            72:    file) and, in the case of a shared library, the relocatable addresses
        !            73:    will have to be properly resolved/relocated (and then written into) by
        !            74:    the dynamic linker when it actually attaches the given shared library
        !            75:    to the executing process.  (Note that on SVR4, you may wish to use the
        !            76:    `-z text' option to the ELF linker, when building a shared library, as
        !            77:    an additional check that you are doing everything right.  But if you do
        !            78:    use the `-z text' option when building a shared library, you will get
        !            79:    errors unless the .ctors and .dtors sections are marked as writable
        !            80:    via the SHF_WRITE attribute.)  */
        !            81:  
1.1       root       82: #undef CTORS_SECTION_ASM_OP
1.1.1.4 ! root       83: #define CTORS_SECTION_ASM_OP   "section\t.ctors,\"aw\""
1.1       root       84: #undef DTORS_SECTION_ASM_OP
1.1.1.4 ! root       85: #define DTORS_SECTION_ASM_OP   "section\t.dtors,\"aw\""

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