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Annotation of gcc/config/mips/svr4-5.h, revision 1.1.1.4

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
1.1.1.4 ! root       18: the Free Software Foundation, 59 Temple Place - Suite 330,
        !            19: Boston, MA 02111-1307, USA.  */
1.1       root       20: 
                     21: #define MIPS_SVR4
                     22: 
                     23: #define CPP_PREDEFINES \
                     24: "-Dmips -Dunix -Dhost_mips -DMIPSEB -DR3000 -DSYSTYPE_SVR4 \
                     25: -D_mips -D_unix -D_host_mips -D_MIPSEB -D_R3000 -D_SYSTYPE_SVR4 \
1.1.1.2   root       26: -D_MIPS_SZINT=32 -D_MIPS_SZLONG=32 -D_MIPS_SZPTR=32 \
                     27: -Asystem(unix) -Asystem(svr4) -Acpu(mips) -Amachine(mips)"
1.1       root       28: 
                     29: #define STANDARD_INCLUDE_DIR "/svr4/usr/include"
                     30: 
                     31: #define LINK_SPEC "\
1.1.1.3   root       32: %{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
                     33: %{bestGnum} %{shared} %{non_shared} \
                     34: %{call_shared} %{no_archive} %{exact_version} \
                     35: %{!shared: %{!non_shared: %{!call_shared: -non_shared}}} \
                     36: -systype /svr4/ "
1.1       root       37:                    
                     38: #define LIB_SPEC "%{p:-lprof1} %{pg:-lprof1} -lc crtn.o%s"
                     39: 
1.1.1.3   root       40: #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt1.o%s}}\
                     41:        %{ansi:/svr4/usr/ccs/lib/values-Xc.o%s} \
                     42:                           %{!ansi: \
                     43:                            %{traditional:/svr4/usr/ccs/lib/values-Xt.o%s} \
                     44:                            %{!traditional:/svr4/usr/ccs/lib/values-Xa.o%s}}"
1.1       root       45: 
                     46: #define MACHINE_TYPE "RISC-OS System V.4 Mips"
                     47: 
                     48: /* Override defaults for finding the MIPS tools.  */
                     49: #define MD_STARTFILE_PREFIX "/svr4/usr/lib/cmplrs/cc/"
                     50: #define MD_EXEC_PREFIX "/svr4/usr/lib/cmplrs/cc/"
                     51: 
                     52: /* Mips System V.4 doesn't have a getpagesize() function needed by the
                     53:    trampoline code, so use the POSIX sysconf function to get it.
                     54:    This is only done when compiling the trampoline code.  */
                     55: 
                     56: #ifdef  L_trampoline
                     57: #include <unistd.h>
                     58: 
1.1.1.2   root       59: /* In at least 5.0 and 5.01, there is no _SC_PAGE_SIZE macro, only a
                     60:    _SC_PAGESIZE macro.  */
                     61: #ifdef _SC_PAGESIZE
                     62: #define _SC_PAGE_SIZE _SC_PAGESIZE
                     63: #endif
                     64: 
1.1       root       65: #define getpagesize()  sysconf(_SC_PAGE_SIZE)
                     66: #endif /*  L_trampoline */
                     67: 
                     68: /* Use atexit for static constructors/destructors, instead of defining
                     69:    our own exit function.  */
                     70: #define HAVE_ATEXIT
                     71: 
                     72: /* Generate calls to memcpy, etc., not bcopy, etc.  */
                     73: #define TARGET_MEM_FUNCTIONS
                     74: 
                     75: #include "mips/mips.h"
1.1.1.3   root       76: 
                     77: /* Some assemblers have a bug that causes backslash escaped chars in .ascii
                     78:    to be misassembled, so we just completely avoid it.  */
                     79: #undef ASM_OUTPUT_ASCII
                     80: #define ASM_OUTPUT_ASCII(FILE,PTR,LEN)                 \
                     81: do {                                                   \
                     82:   unsigned char *s;                                    \
                     83:   int i;                                               \
                     84:   for (i = 0, s = (unsigned char *)(PTR); i < (LEN); s++, i++) \
                     85:     {                                                  \
                     86:       if ((i % 8) == 0)                                        \
                     87:        fputs ("\n\t.byte\t", (FILE));                  \
                     88:       fprintf ((FILE), "%s0x%x", (i%8?",":""), (unsigned)*s); \
                     89:     }                                                  \
                     90:   fputs ("\n", (FILE));                                        \
                     91: } while (0)

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