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Annotation of gcc/config/aix386ng.h, revision 1.1

1.1     ! root        1: /* Definitions for IBM PS2 running AIX/386.
        !             2:    From: Minh Tran-Le <[email protected]>
        !             3:    Copyright (C) 1988 Free Software Foundation, Inc.
        !             4: 
        !             5: This file is part of GNU CC.
        !             6: 
        !             7: GNU CC is free software; you can redistribute it and/or modify
        !             8: it under the terms of the GNU General Public License as published by
        !             9: the Free Software Foundation; either version 2, or (at your option)
        !            10: any later version.
        !            11: 
        !            12: GNU CC is distributed in the hope that it will be useful,
        !            13: but WITHOUT ANY WARRANTY; without even the implied warranty of
        !            14: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
        !            15: GNU General Public License for more details.
        !            16: 
        !            17: You should have received a copy of the GNU General Public License
        !            18: along with GNU CC; see the file COPYING.  If not, write to
        !            19: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.  */
        !            20: 
        !            21: 
        !            22: #include "i386.h"
        !            23: 
        !            24: /* Get the generic definitions for system V.3.  */
        !            25: 
        !            26: #include "svr3.h"
        !            27: 
        !            28: /* Use the ATT assembler syntax.
        !            29:    This overrides at least one macro (ASM_OUTPUT_LABELREF) from svr3.h.  */
        !            30: 
        !            31: #include "att386.h"
        !            32: 
        !            33: /* Use crt1.o as a startup file and crtn.o as a closing file.  */
        !            34: 
        !            35: #define STARTFILE_SPEC  \
        !            36:   "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}} crtbegin.o%s"
        !            37: 
        !            38: #define LIB_SPEC "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} -lc \
        !            39:   crtend.o%s crtn.o%s"
        !            40: 
        !            41: /* Special flags for the linker.  I don't know what they do.  */
        !            42: 
        !            43: #define LINK_SPEC "%{K} %{!K:-K} %{T*} %{z:-lm}"
        !            44: 
        !            45: /* Specify predefined symbols in preprocessor.  */
        !            46: 
        !            47: #define CPP_PREDEFINES "-D_I386 -Di386 -DAIX -D_AIX"
        !            48: 
        !            49: /* special flags for the aix assembler to generate the short form for all
        !            50:    qualifying forward reference */
        !            51: 
        !            52: #define ASM_SPEC "-s2"
        !            53: 
        !            54: #undef ASM_FILE_START
        !            55: #define ASM_FILE_START(FILE)                                   \
        !            56:   do { fprintf (FILE, "\t.file\t\"%s\"\n", dump_base_name);    \
        !            57:        if (optimize)                                           \
        !            58:           ASM_FILE_START_1 (FILE);                             \
        !            59:        else                                                    \
        !            60:           fprintf (FILE, "\t.noopt\n");                                \
        !            61:      } while (0)
        !            62: 
        !            63: /* This was suggested, but it shouldn't be right for DBX output. -- RMS
        !            64:    #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */
        !            65: 
        !            66: /* Writing `int' for a bitfield forces int alignment for the structure.  */
        !            67: 
        !            68: #define PCC_BITFIELD_TYPE_MATTERS 1
        !            69: 
        !            70: #if 0
        !            71: /* Don't write a `.optim' pseudo; this assembler
        !            72:    is said to have a bug when .optim is used.  */
        !            73: 
        !            74: #undef ASM_FILE_START_1
        !            75: #define ASM_FILE_START_1(FILE) fprintf (FILE, "\t.noopt\n");
        !            76: #endif
        !            77: 
        !            78: /* Output assembler code to FILE to increment profiler label # LABELNO
        !            79:    for profiling a function entry.  */
        !            80: 
        !            81: #undef FUNCTION_PROFILER
        !            82: #define FUNCTION_PROFILER(FILE, LABELNO)  \
        !            83:    fprintf (FILE, "\tleal %sP%d,%%eax\n\tcall mcount\n", LPREFIX, (LABELNO));
        !            84: 
        !            85: /* Note that using bss_section here caused errors
        !            86:    in building shared libraries on system V.3.
        !            87:    but AIX 1.2 does not have yet shareable libraries on PS2 */
        !            88: #undef ASM_OUTPUT_LOCAL
        !            89: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED)  \
        !            90:   (bss_section (),                                     \
        !            91:    ASM_OUTPUT_LABEL ((FILE), (NAME)),                  \
        !            92:    fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)))

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