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Annotation of gcc/config/mips/svr4-5.h, revision 1.1.1.3

1.1       root        1: /* Definitions of target machine for GNU compiler.  MIPS RISC-OS 5.0 System V.4 version.
                      2:    Copyright (C) 1992 Free Software Foundation, Inc.
                      3: 
                      4: This file is part of GNU CC.
                      5: 
                      6: GNU CC is free software; you can redistribute it and/or modify
                      7: it under the terms of the GNU General Public License as published by
                      8: the Free Software Foundation; either version 2, or (at your option)
                      9: any later version.
                     10: 
                     11: GNU CC is distributed in the hope that it will be useful,
                     12: but WITHOUT ANY WARRANTY; without even the implied warranty of
                     13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     14: GNU General Public License for more details.
                     15: 
                     16: You should have received a copy of the GNU General Public License
                     17: along with GNU CC; see the file COPYING.  If not, write to
                     18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
                     19: 
                     20: #define MIPS_SVR4
                     21: 
                     22: #define CPP_PREDEFINES \
                     23: "-Dmips -Dunix -Dhost_mips -DMIPSEB -DR3000 -DSYSTYPE_SVR4 \
                     24: -D_mips -D_unix -D_host_mips -D_MIPSEB -D_R3000 -D_SYSTYPE_SVR4 \
1.1.1.2   root       25: -D_MIPS_SZINT=32 -D_MIPS_SZLONG=32 -D_MIPS_SZPTR=32 \
                     26: -Asystem(unix) -Asystem(svr4) -Acpu(mips) -Amachine(mips)"
1.1       root       27: 
                     28: #define STANDARD_INCLUDE_DIR "/svr4/usr/include"
                     29: 
                     30: #define LINK_SPEC "\
1.1.1.3 ! root       31: %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
        !            32: %{bestGnum} %{shared} %{non_shared} \
        !            33: %{call_shared} %{no_archive} %{exact_version} \
        !            34: %{!shared: %{!non_shared: %{!call_shared: -non_shared}}} \
        !            35: -systype /svr4/ "
1.1       root       36:                    
                     37: #define LIB_SPEC "%{p:-lprof1} %{pg:-lprof1} -lc crtn.o%s"
                     38: 
1.1.1.3 ! root       39: #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt1.o%s}}\
        !            40:        %{ansi:/svr4/usr/ccs/lib/values-Xc.o%s} \
        !            41:                           %{!ansi: \
        !            42:                            %{traditional:/svr4/usr/ccs/lib/values-Xt.o%s} \
        !            43:                            %{!traditional:/svr4/usr/ccs/lib/values-Xa.o%s}}"
1.1       root       44: 
                     45: #define MACHINE_TYPE "RISC-OS System V.4 Mips"
                     46: 
                     47: /* Override defaults for finding the MIPS tools.  */
                     48: #define MD_STARTFILE_PREFIX "/svr4/usr/lib/cmplrs/cc/"
                     49: #define MD_EXEC_PREFIX "/svr4/usr/lib/cmplrs/cc/"
                     50: 
                     51: /* Mips System V.4 doesn't have a getpagesize() function needed by the
                     52:    trampoline code, so use the POSIX sysconf function to get it.
                     53:    This is only done when compiling the trampoline code.  */
                     54: 
                     55: #ifdef  L_trampoline
                     56: #include <unistd.h>
                     57: 
1.1.1.2   root       58: /* In at least 5.0 and 5.01, there is no _SC_PAGE_SIZE macro, only a
                     59:    _SC_PAGESIZE macro.  */
                     60: #ifdef _SC_PAGESIZE
                     61: #define _SC_PAGE_SIZE _SC_PAGESIZE
                     62: #endif
                     63: 
1.1       root       64: #define getpagesize()  sysconf(_SC_PAGE_SIZE)
                     65: #endif /*  L_trampoline */
                     66: 
                     67: /* Use atexit for static constructors/destructors, instead of defining
                     68:    our own exit function.  */
                     69: #define HAVE_ATEXIT
                     70: 
                     71: /* Generate calls to memcpy, etc., not bcopy, etc.  */
                     72: #define TARGET_MEM_FUNCTIONS
                     73: 
                     74: #include "mips/mips.h"
1.1.1.3 ! root       75: 
        !            76: /* Some assemblers have a bug that causes backslash escaped chars in .ascii
        !            77:    to be misassembled, so we just completely avoid it.  */
        !            78: #undef ASM_OUTPUT_ASCII
        !            79: #define ASM_OUTPUT_ASCII(FILE,PTR,LEN)                 \
        !            80: do {                                                   \
        !            81:   unsigned char *s;                                    \
        !            82:   int i;                                               \
        !            83:   for (i = 0, s = (unsigned char *)(PTR); i < (LEN); s++, i++) \
        !            84:     {                                                  \
        !            85:       if ((i % 8) == 0)                                        \
        !            86:        fputs ("\n\t.byte\t", (FILE));                  \
        !            87:       fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \
        !            88:     }                                                  \
        !            89:   fputs ("\n", (FILE));                                        \
        !            90: } while (0)

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