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1.1 root 1: /* Definitions for Rs6000 running LynxOS.
2: Copyright (C) 1995 Free Software Foundation, Inc.
3: Contributed by David Henkel-Wallace, Cygnus Support ([email protected])
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, 59 Temple Place - Suite 330,
20: Boston, MA 02111-1307, USA. */
21:
22: #include <lynx.h>
23:
24: /* Definitions we want to override with those from rs6000.h: */
25: #undef LIB_SPEC
26: #undef PTRDIFF_TYPE
27: #undef WCHAR_TYPE
28: #undef WCHAR_TYPE_SIZE
29: #undef ASM_FILE_START
30: #undef EXTRA_SECTIONS
31: #undef READONLY_DATA_SECTION
32: #undef EXTRA_SECTION_FUNCTIONS
33: #undef SELECT_RTX_SECTION
34: #undef SELECT_SECTION
35: #undef ASM_OUTPUT_LABELREF
36: #undef ASM_OUTPUT_INTERNAL_LABEL
37: #undef ASM_GENERATE_INTERNAL_LABEL
38: #undef ASM_OUTPUT_COMMON
39: #undef ASM_OUTPUT_LOCAL
40: #undef ASM_OUTPUT_CONSTRUCTOR
41: #undef ASM_OUTPUT_DESTRUCTOR
42: #undef CTORS_SECTION_FUNCTION
43: #undef DTORS_SECTION_FUNCTION
44:
45: #undef SDB_DEBUGGING_INFO
46: #undef DBX_DEBUGGING_INFO
47: #undef PREFERRED_DEBUGGING_TYPE
48:
49: #undef FUNCTION_PROFILER
50:
51: #include <rs6000/rs6000.h>
52:
53: /* LynxOS has signed chars, regardless of what most R/S 6000 systems do */
54: #undef DEFAULT_SIGNED_CHAR
55: #define DEFAULT_SIGNED_CHAR 1
56:
57: #undef CPP_PREDEFINES
58: #define CPP_PREDEFINES "-Acpu(rs6000) -Amachine(rs6000) -Asystem(lynx) -Asystem(unix) -DLynx -D_IBMR2 -Dunix -Drs6000 -Dlynx -DLYNX"
59:
60: #undef LINK_SPEC
61: #define LINK_SPEC "-T0x10001000 -H0x1000 -D0x20000000 -btextro -bhalt:4 -bnodelcsect -bnso -bro -bnoglink %{v} %{b*}"
62:
63: #undef LIB_SPEC
64: #define LIB_SPEC "%{mthreads:-L/lib/thread/} \
65: %{msystem-v:-lc_v -lm.v} \
66: %{!msystem-v:%{mposix:-lc_p} -lc -lm}"
67:
68: #undef STARTFILE_SPEC
69: #define STARTFILE_SPEC "%{p:%{mthreads:thread/pinit.o%s}%{!mthreads:pinit.o%s}}%{!p:%{msystem-v:vinit.o%s -e_start}%{!msystem-v:%{mthreads:thread/init.o%s}%{!mthreads:init.o%s}}}"
70:
71: #undef ENDFILE_SPEC
72:
73: /* This can become more refined as we have more powerpc options. */
74: #undef ASM_SPEC
75: #define ASM_SPEC "-u %{m601:-m601} %{power*:-m601}"
76:
77: #undef SUBTARGET_SWITCHES
78: #define SUBTARGET_SWITCHES \
79: {"threads", MASK_THREADS}, \
80: {"posix", MASK_POSIX}, \
81: {"system-v", MASK_SYSTEM_V},
82:
83: #undef SUBTARGET_OVERRIDE_OPTIONS
84: #define SUBTARGET_OVERRIDE_OPTIONS \
85: do { \
86: if (TARGET_SYSTEM_V && profile_flag) \
87: warning ("-msystem-v and -p are incompatible"); \
88: if (TARGET_SYSTEM_V && TARGET_THREADS) \
89: warning ("-msystem-v and -mthreads are incompatible"); \
90: } while (0)
91:
92: /* For collect2 */
93: #define OBJECT_FORMAT_NONE
94: #undef OBJECT_FORMAT_COFF
95: #undef OBJECT_FORMAT_ROSE
96: #undef MD_EXEC_PREFIX
97: #undef REAL_LD_FILE_NAME
98: #undef REAL_NM_FILE_NAME
99: #undef REAL_STRIP_FILE_NAME
100:
101: /* LynxOS doesn't have mcount. */
102: #undef FUNCTION_PROFILER
103: #define FUNCTION_PROFILER(file, profile_label_no)
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