1 /* Definitions for Rs6000 running LynxOS.
2 Copyright (C) 1995, 1996, 2000, 2002, 2003 Free Software Foundation, Inc.
3 Contributed by David Henkel-Wallace, Cygnus Support (gumby@cygnus.com)
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published
9 by the Free Software Foundation; either version 2, or (at your
10 option) any later version.
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the
19 Free Software Foundation, 59 Temple Place - Suite 330, Boston,
20 MA 02111-1307, USA. */
22 /* Definitions we want to override with those from rs6000.h: */
26 #undef WCHAR_TYPE_SIZE
28 #undef READONLY_DATA_SECTION
29 #undef READONLY_DATA_SECTION_ASM_OP
30 #undef EXTRA_SECTION_FUNCTIONS
31 #undef TARGET_ASM_SELECT_RTX_SECTION
32 #undef TARGET_ASM_SELECT_SECTION
33 #undef USER_LABEL_PREFIX
34 #undef ASM_OUTPUT_LABELREF
35 #undef ASM_GENERATE_INTERNAL_LABEL
36 #undef ASM_OUTPUT_COMMON
37 #undef ASM_OUTPUT_LOCAL
39 #undef SDB_DEBUGGING_INFO
40 #undef DBX_DEBUGGING_INFO
41 #undef PREFERRED_DEBUGGING_TYPE
43 #undef FUNCTION_PROFILER
45 #include <rs6000/rs6000.h>
47 /* Print subsidiary information on the compiler version in use. */
48 #define TARGET_VERSION fprintf (stderr, " (LynxOS-RS/6000)");
50 /* LynxOS has signed chars, regardless of what most R/S 6000 systems do */
51 #undef DEFAULT_SIGNED_CHAR
52 #define DEFAULT_SIGNED_CHAR 1
54 #undef TARGET_OS_CPP_BUILTINS
55 #define TARGET_OS_CPP_BUILTINS() \
58 builtin_assert ("cpu=rs6000"); \
59 builtin_assert ("machine=rs6000"); \
60 builtin_assert ("system=lynx"); \
61 builtin_assert ("system=unix"); \
62 builtin_define_std ("Lynx"); \
63 builtin_define ("_IBMR2"); \
64 builtin_define_std ("unix"); \
65 builtin_define_std ("rs6000"); \
66 builtin_define_std ("lynx"); \
67 builtin_define_std ("LYNX"); \
72 #define LINK_SPEC "-T0x10001000 -H0x1000 -D0x20000000 -btextro -bhalt:4 -bnodelcsect -bnso -bro -bnoglink %{v} %{b*}"
75 #define LIB_SPEC "%{mthreads:-L/lib/thread/} \
76 %{msystem-v:-lc_v -lm.v} \
77 %{!msystem-v:%{mposix:-lc_p} -lc -lm}"
80 #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}}}"
84 /* This can become more refined as we have more powerpc options. */
86 #define ASM_SPEC "-u %(asm_cpu)"
88 #undef SUBTARGET_SWITCHES
89 #define SUBTARGET_SWITCHES \
90 {"threads", MASK_THREADS}, \
91 {"posix", MASK_POSIX}, \
92 {"system-v", MASK_SYSTEM_V},
94 #undef SUBTARGET_OVERRIDE_OPTIONS
95 #define SUBTARGET_OVERRIDE_OPTIONS \
97 if (TARGET_SYSTEM_V && profile_flag) \
98 warning ("-msystem-v and -p are incompatible"); \
99 if (TARGET_SYSTEM_V && TARGET_THREADS) \
100 warning ("-msystem-v and -mthreads are incompatible"); \
104 #define OBJECT_FORMAT_NONE
105 #undef OBJECT_FORMAT_COFF
106 #undef MD_EXEC_PREFIX
107 #undef REAL_LD_FILE_NAME
108 #undef REAL_STRIP_FILE_NAME
110 /* LynxOS doesn't have mcount. */
111 #undef FUNCTION_PROFILER
112 #define FUNCTION_PROFILER(file, profile_label_no)