1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
/* Definitions of target machine GNU compiler. IA64-VMS version.
Copyright (C) 2003-2010 Free Software Foundation, Inc.
Contributed by Douglas B Rupp (rupp@gnat.com).
This file is part of GCC.
GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GCC; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#define TARGET_OBJECT_SUFFIX ".obj"
#define TARGET_EXECUTABLE_SUFFIX ".exe"
#define OBJECT_FORMAT_ELF
#define TARGET_OS_CPP_BUILTINS() \
do { \
builtin_define_std ("vms"); \
builtin_define_std ("VMS"); \
builtin_define ("__IA64"); \
builtin_assert ("system=vms"); \
builtin_define ("__IEEE_FLOAT"); \
} while (0)
/* By default, allow $ to be part of an identifier. */
#define DOLLARS_IN_IDENTIFIERS 2
#undef TARGET_ABI_OPEN_VMS
#define TARGET_ABI_OPEN_VMS 1
#undef TARGET_NAME
#define TARGET_NAME "OpenVMS/IA64"
#undef TARGET_VERSION
#define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME);
/* Need .debug_line info generated from gcc and gas. */
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_GNU_AS)
#define VMS_DEBUG_MAIN_POINTER "TRANSFER$BREAK$GO"
/* "long" is 32 bits, but 64 bits for Ada. */
#undef LONG_TYPE_SIZE
#define LONG_TYPE_SIZE 32
#define ADA_LONG_TYPE_SIZE 64
/* Pointer is 32 bits but the hardware has 64-bit addresses, sign extended. */
#undef POINTER_SIZE
#define POINTER_SIZE 32
#define POINTERS_EXTEND_UNSIGNED 0
#undef MAX_OFILE_ALIGNMENT
#define MAX_OFILE_ALIGNMENT 524288 /* 8 x 2^16 by DEC Ada Test CD40VRA */
/* Widest floating-point type efficiently supported by hardware and OS. */
#undef WIDEST_HARDWARE_FP_SIZE
#define WIDEST_HARDWARE_FP_SIZE 64
/* The structure return address arrives as an "argument" on VMS. */
#undef PCC_STATIC_STRUCT_RETURN
/* Turn on VMS specific Dwarf2 features. */
#define VMS_DEBUGGING_INFO 1
#define ASM_OUTPUT_DWARF_VMS_DELTA(FILE,SIZE,LABEL1,LABEL2) \
do { \
fprintf (FILE, "\tdata4.ua\t@slotcount("); \
assemble_name (FILE, LABEL1); \
fprintf (FILE, "-"); \
assemble_name (FILE, LABEL2); \
fprintf (FILE, ")"); \
} while (0)
#undef STARTFILE_SPEC
#define STARTFILE_SPEC \
"%{!shared:%{mvms-return-codes:vcrt0.o%s} %{!mvms-return-codes:pcrt0.o%s} \
crtbegin.o%s} \
%{!static:%{shared:crtinitS.o%s crtbeginS.o%s}}"
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{!shared:crtend.o%s} %{!static:%{shared:crtendS.o%s}}"
#define LINK_GCC_C_SEQUENCE_SPEC "%G"
#undef LINK_SPEC
#define LINK_SPEC "%{g*} %{map} %{save-temps} %{shared} %{v}"
#undef LIB_SPEC
#define LIB_SPEC ""
#undef ASM_SPEC
#define ASM_SPEC \
"%{mno-gnu-as:-N so -N vms_upcase -W DVLoc_off} %{mconstant-gp:-M const_gp} \
%{mauto-pic:-M no_plabel} %{source-listing:-ahdl=%b.lis}"
#undef ASM_OUTPUT_EXTERNAL_LIBCALL
#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
do { \
(*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \
} while (0)
/* Set the function to change the names of the division and modulus
functions. */
#undef TARGET_INIT_LIBFUNCS
#define TARGET_INIT_LIBFUNCS ia64_vms_init_libfuncs
#define NAME__MAIN "__gccmain"
#define SYMBOL__MAIN __gccmain
#define CTOR_LIST_BEGIN asm (".global\tLIB$INITIALIZE#\n"); \
STATIC func_ptr __CTOR_LIST__[1] \
__attribute__ ((__unused__, section(".ctors"), aligned(sizeof(func_ptr)))) \
= { (func_ptr) (-1) };
#undef INIT_SECTION_ASM_OP
#define INIT_SECTION_ASM_OP ".section\tLIB$INITIALIZE#,\"a\",@progbits"
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
asm (SECTION_OP "\n\tdata4 @fptr(" #FUNC"#)\n"); \
FORCE_CODE_SECTION_ALIGN \
asm (TEXT_SECTION_ASM_OP);
#undef FINI_SECTION_ASM_OP
/* Maybe same as HPUX? Needs to be checked. */
#define JMP_BUF_SIZE (8 * 76)
typedef struct crtl_name_spec
{
const char *const name;
const char *deccname;
int referenced;
} crtl_name_spec;
#include "config/vms/vms-crtl.h"
/* Alias CRTL names to 32/64bit DECCRTL functions.
Fixme: This should do a binary search. */
#define DO_CRTL_NAMES \
do \
{ \
int i; \
static crtl_name_spec vms_crtl_names[] = CRTL_NAMES; \
static int malloc64_init = 0; \
\
if ((malloc64_init == 0) && TARGET_MALLOC64) \
{ \
for (i=0; vms_crtl_names [i].name; i++) \
{ \
if (strcmp ("calloc", vms_crtl_names [i].name) == 0) \
vms_crtl_names [i].deccname = "decc$_calloc64"; \
else \
if (strcmp ("malloc", vms_crtl_names [i].name) == 0) \
vms_crtl_names [i].deccname = "decc$_malloc64"; \
else \
if (strcmp ("realloc", vms_crtl_names [i].name) == 0) \
vms_crtl_names [i].deccname = "decc$_realloc64"; \
else \
if (strcmp ("strdup", vms_crtl_names [i].name) == 0) \
vms_crtl_names [i].deccname = "decc$_strdup64"; \
} \
malloc64_init = 1; \
} \
for (i=0; vms_crtl_names [i].name; i++) \
if (!vms_crtl_names [i].referenced && \
(strcmp (name, vms_crtl_names [i].name) == 0)) \
{ \
fprintf (file, "\t.alias %s, \"%s\"\n", \
name, vms_crtl_names [i].deccname); \
vms_crtl_names [i].referenced = 1; \
} \
} while (0)
#undef SUBTARGET_OPTIMIZATION_OPTIONS
#define SUBTARGET_OPTIMIZATION_OPTIONS \
{ OPT_LEVELS_ALL, OPT_fmerge_constants, NULL, 0 }
/* Define this to be nonzero if static stack checking is supported. */
#define STACK_CHECK_STATIC_BUILTIN 1
#define MD_UNWIND_SUPPORT "config/ia64/vms-unwind.h"
#define UNW_IVMS_MODE(HEADER) (((HEADER) >> 44) & 0x3L)
#define MD_UNW_COMPATIBLE_PERSONALITY_P(HEADER) (!UNW_IVMS_MODE (HEADER))
/* Minimum amount of stack required to recover from an anticipated stack
overflow detection. The default value conveys an estimate of the amount
of stack required to propagate an exception. */
#define STACK_CHECK_PROTECT (24 * 1024)
#undef ASM_OUTPUT_ALIGNED_DECL_COMMON
#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \
ia64_vms_output_aligned_decl_common (FILE, DECL, NAME, SIZE, ALIGN)
#undef TARGET_VALID_POINTER_MODE
#define TARGET_VALID_POINTER_MODE ia64_vms_valid_pointer_mode
#undef TARGET_ASM_NAMED_SECTION
#define TARGET_ASM_NAMED_SECTION ia64_vms_elf_asm_named_section
|
