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1.1 root 1: /* Configuration for GNU C-compiler for Vax.
2: Copyright (C) 1987 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
18: the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
19:
20: /* #defines that need visibility everywhere. */
21: #define FALSE 0
22: #define TRUE 1
23:
24: /* target machine dependencies.
25: tm.h is a symbolic link to the actual target specific file. */
26: #include "tm.h"
27:
28: /* This describes the machine the compiler is hosted on. */
29: #define HOST_BITS_PER_CHAR 8
30: #define HOST_BITS_PER_SHORT 16
31: #define HOST_BITS_PER_INT 32
32: #define HOST_BITS_PER_LONG 32
33: #define HOST_BITS_PER_LONGLONG 64
34:
35: #define HOST_FLOAT_FORMAT VAX_FLOAT_FORMAT
36:
37: #define SUCCESS_EXIT_CODE 1
38: #define FATAL_EXIT_CODE (44 | 0x10000000) /* Failure, and no DCL message. */
39:
40:
41: /* A couple of conditionals for execution machine are controlled here. */
42: #ifndef VMS
43: #define VMS
44: #endif
45:
46: #ifndef __GNUC__
47: /* not present, at least in VAX-11 C (VMS) v2.2 */
48: #define R_OK 4
49: #define W_OK 2
50: #define X_OK 1
51: #define F_OK 0
52: #endif
53:
54: /* If compiled with GNU C, use the built-in alloca */
55: #ifdef __GNUC__
56: #define alloca __builtin_alloca
57: #endif
58:
59: #define GCC_INCLUDE_DIR "///not used with VMS///" /* nonsense string for now */
60:
61: /* and define a local equivalent (sort of) for unlink */
62: #define unlink remove
63:
64: /* Specify the list of include file directories. */
65: #define INCLUDE_DEFAULTS \
66: { \
67: { "GNU_GXX_INCLUDE:", 1}, \
68: { "GNU_CC_INCLUDE:", 0}, /* GNU includes */ \
69: { "SYS$SYSROOT:[SYSLIB.]", 0}, /* VAX-11 "C" includes */ \
70: { ".", 0}, /* Make normal VMS filespecs work. */ \
71: { 0, 0} \
72: }
73:
74: /* Under VMS a directory specification can be enclosed either in square
75: brackets or in angle brackets. Thus we need to check both. This
76: macro is used to help compare filenames in cp-lex.c.
77:
78: We also need to make sure that the names are all lower case, because
79: we must be able to compare filenames to determine if a file implements
80: a class. */
81:
82: #define FILE_NAME_NONDIRECTORY(C) \
83: ({ \
84: char * pnt_ = (C), * pnt1_; \
85: pnt1_ = pnt_ - 1; \
86: while (*++pnt1_) \
87: if ((*pnt1_ >= 'A' && *pnt1_ <= 'Z')) *pnt1_ |= 0x20; \
88: pnt1_ = rindex (pnt_, ']'); \
89: pnt1_ = (pnt1_ == 0 ? rindex (pnt_, '>') : pnt1_); \
90: pnt1_ = (pnt1_ == 0 ? rindex (pnt_, ':') : pnt1_); \
91: (pnt1_ == 0 ? pnt_ : pnt1_ + 1); \
92: })
93:
94: /* Macro to generate the name of the cross reference file. The standard
95: one does not work, since it was written assuming that the conventions
96: of a unix style filesystem will work on the host system. */
97:
98: #define XREF_FILE_NAME(BUFF, NAME) \
99: s = FILE_NAME_NONDIRECTORY (NAME); \
100: if (s == NAME) sprintf(BUFF, "%s_gxref", NAME); \
101: else { \
102: strcpy(BUFF, NAME); \
103: strcat(BUFF, "_gxref"); \
104: }
105:
106: /* Macro that is used in cp-xref.c to determine whether a file name is
107: absolute or not. */
108:
109: #define FILE_NAME_ABSOLUTE_P(NAME) \
110: (FILE_NAME_NONDIRECTORY (NAME) != (&NAME[1]))
111:
112: /* FILE_NAME_JOINER is defined to be the characters that are inserted between
113: a directory name and a filename in order to make an absolute file
114: specification. Under VMS the directory specification contains all of the
115: required characters, so we define this to be a null string. */
116:
117: #define FILE_NAME_JOINER ""
118:
119: #ifdef VAXC
120: /* Customizations/kludges for building with DEC's VAX C compiler
121: rather than GCC. */
122: #define NO_SYS_PARAMS_H /* don't have <sys/params.h> */
123: #define NO_STAB_H /* don't have <stab.h> */
124: #define USE_C_ALLOCA /* using alloca.c */
125: #define QSORT_WORKAROUND /* do not use VAXCRTL's qsort */
126:
127: /* use ANSI/SYSV style byte manipulation routines instead of BSD ones */
128: #define bcopy(s,d,n) memcpy((d),(s),(n))
129: #define bzero(d,n) memset((d),0,(n))
130: #define bcmp(l,r,n) memcmp((l),(r),(n))
131: #define index strchr
132: #define rindex strrchr
133:
134: /* rename all too-long external symbol names to avoid warnings */
135: #define check_for_full_enumeration_handling check_for_full_enum_handling
136: #define current_function_contains_functions curfunc_contains_functions
137: #define current_function_epilogue_delay_list curfunc_epilogue_delay_list
138: #define current_function_has_nonlocal_label curfunc_has_nonlocal_label
139: #define current_function_internal_arg_pointer curfunc_internal_arg_pointer
140: #define current_function_outgoing_args_size curfunc_outgoing_args_size
141: #define current_function_pretend_args_size curfunc_pretend_args_size
142: #define current_function_returns_pcc_struct curfunc_returns_pcc_struct
143: #define current_function_returns_pointer curfunc_returns_pointer
144: #define current_function_uses_const_pool curfunc_uses_const_pool
145: #define current_function_uses_pic_offset_table curfunc_uses_pic_offset_table
146: #define expand_start_loop_continue_elsewhere expnd_start_loop_cont_elsewhere
147: #define flag_schedule_insns_after_reload flag_sched_insns_after_reload
148: #define maybe_building_objc_message_expr maybe_building_objc_msg_expr
149: #define reg_overlap_mentioned_for_reload_p reg_overlap_mtnd_for_reload_p
150: #define reposition_prologue_and_epilogue_notes repos_prolog_and_epilog_notes
151: #define rtx_equal_function_value_matters rtx_equal_func_value_matters
152: #define set_new_first_and_last_label_num set_new_first_and_last_lbl_num
153: #define thread_prologue_and_epilogue_insns thread_prolog_and_epilog_insns
154: #endif
155:
156: /* We need to avoid the library qsort routine, due to a serious bug
157: in VAXCRTL. (Sorting anything with size that's not a multiple of 4
158: after having previously sorted something that was a multiple of 4
159: can produce wrong results and result in data corruption.) We'll
160: use our own substitute (in vax.c) instead. */
161: /* #define QSORT_WORKAROUND */
162: #ifdef QSORT_WORKAROUND
163: #define qsort not_qsort
164: #endif
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