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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
1.1.1.3 ! root 19: the Free Software Foundation, 59 Temple Place - Suite 330,
! 20: Boston, MA 02111-1307, USA. */
1.1 root 21:
22:
23: #include "i386/i386.h"
24:
25: /* Get the generic definitions for system V.3. */
26:
27: #include "svr3.h"
28:
29: /* Use the ATT assembler syntax.
30: This overrides at least one macro (ASM_OUTPUT_LABELREF) from svr3.h. */
31:
32: #include "i386/att.h"
33:
34: /* Use crt1.o as a startup file and crtn.o as a closing file. */
35:
36: #define STARTFILE_SPEC "%{pg:gcrt0.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}"
37: #define ENDFILE_SPEC "crtn.o%s"
38:
39: #define LIB_SPEC "%{shlib:-lc_s} -lc"
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:
1.1.1.2 root 47: #define CPP_PREDEFINES "-Dps2 -Dunix -Di386 -Asystem(unix) -Asystem(aix) -Acpu(i386) -Amachine(i386)"
1.1 root 48:
49: #define CPP_SPEC \
50: "%{posix:-D_POSIX_SOURCE}%{!posix:-DAIX} -D_I386 -D_AIX -D_MBCS"
51:
52: /* special flags for the aix assembler to generate the short form for all
53: qualifying forward reference */
54: /* The buggy /bin/as of aix ps/2 1.2.x cannot always handle it. */
55: #if 0
56: #define ASM_SPEC "-s2"
57: #endif /* 0 */
58:
59: #undef ASM_FILE_START
60: #define ASM_FILE_START(FILE) \
1.1.1.2 root 61: do { fprintf (FILE, "\t.file\t"); \
62: output_quoted_string (FILE, dump_base_name); \
63: fprintf (FILE, "\n"); \
1.1 root 64: if (optimize) \
65: ASM_FILE_START_1 (FILE); \
66: else \
67: fprintf (FILE, "\t.noopt\n"); \
68: } while (0)
69:
70: /* This was suggested, but it shouldn't be right for DBX output. -- RMS
71: #define ASM_OUTPUT_SOURCE_FILENAME(FILE, NAME) */
72:
73: /* Writing `int' for a bitfield forces int alignment for the structure. */
74:
75: #define PCC_BITFIELD_TYPE_MATTERS 1
76:
77: #ifndef USE_GAS
78: /* Don't write a `.optim' pseudo; this assembler
79: is said to have a bug when .optim is used. */
80:
81: #undef ASM_FILE_START_1
82: #define ASM_FILE_START_1(FILE) fprintf (FILE, "\t.noopt\n")
83: #endif
84:
85: /* Output assembler code to FILE to increment profiler label # LABELNO
86: for profiling a function entry. */
87:
88: #undef FUNCTION_PROFILER
89: #define FUNCTION_PROFILER(FILE, LABELNO) \
90: fprintf (FILE, "\tleal %sP%d,%%eax\n\tcall mcount\n", LPREFIX, (LABELNO));
91:
92: /* Note that using bss_section here caused errors
93: in building shared libraries on system V.3.
94: but AIX 1.2 does not have yet shareable libraries on PS2 */
95: #undef ASM_OUTPUT_LOCAL
96: #define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
97: (bss_section (), \
98: ASM_OUTPUT_LABEL ((FILE), (NAME)), \
99: fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)))
100:
101:
102: /* Undef all the .init and .fini section stuff if we are not using gas and
103: * gnu ld so that we can use collect because the standard /bin/as and /bin/ld
104: * cannot handle those.
105: */
106: #ifndef USE_GAS
107: # undef INIT_SECTION_ASM_OP
108: # undef FINI_SECTION_ASM_OP
109: # undef CTORS_SECTION_ASM_OP
110: # undef DTORS_SECTION_ASM_OP
111: # undef ASM_OUTPUT_CONSTRUCTOR
112: # undef ASM_OUTPUT_DESTRUCTOR
113: # undef DO_GLOBAL_CTORS_BODY
114:
115: # undef CTOR_LIST_BEGIN
116: # define CTOR_LIST_BEGIN
117: # undef CTOR_LIST_END
118: # define CTOR_LIST_END
119: # undef DTOR_LIST_BEGIN
120: # define DTOR_LIST_BEGIN
121: # undef DTOR_LIST_END
122: # define DTOR_LIST_END
123:
124: # undef CONST_SECTION_FUNCTION
125: # define CONST_SECTION_FUNCTION \
126: void \
127: const_section () \
128: { \
129: extern void text_section(); \
130: text_section(); \
131: }
132:
133: # undef EXTRA_SECTION_FUNCTIONS
134: # define EXTRA_SECTION_FUNCTIONS \
135: CONST_SECTION_FUNCTION \
136: BSS_SECTION_FUNCTION
137:
138: /* for collect2 */
139: # define OBJECT_FORMAT_COFF
140: # define MY_ISCOFF(magic) \
141: ((magic) == I386MAGIC || (magic) == I386SVMAGIC)
142:
143: #endif /* !USE_GAS */
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