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d442d7d9 | 1 | /* IA32 VxWorks target definitions for GNU compiler. |
99dee823 | 2 | Copyright (C) 2003-2021 Free Software Foundation, Inc. |
d442d7d9 | 3 | Updated by CodeSourcery, LLC. |
55047c9d PE |
4 | |
5 | This file is part of GCC. | |
6 | ||
7 | GCC is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
2f83c7d6 | 9 | the Free Software Foundation; either version 3, or (at your option) |
55047c9d PE |
10 | any later version. |
11 | ||
12 | GCC 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 | |
2f83c7d6 NC |
18 | along with GCC; see the file COPYING3. If not see |
19 | <http://www.gnu.org/licenses/>. */ | |
55047c9d | 20 | |
9a835ba4 OH |
21 | /* VxWorks after 7 SR0600 use the ELF ABI and the system environment is llvm |
22 | based. Earlier versions have GNU based environment components and use the | |
23 | same ABI as Solaris 2. */ | |
24 | ||
25 | #if TARGET_VXWORKS7 | |
26 | ||
27 | #undef VXWORKS_PERSONALITY | |
28 | #define VXWORKS_PERSONALITY "llvm" | |
29 | ||
30 | #else | |
31 | ||
e57f3ae8 | 32 | #undef ASM_OUTPUT_ALIGNED_BSS |
4ce351de OH |
33 | #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ |
34 | asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) | |
35 | ||
4ce351de OH |
36 | #undef TARGET_SUBTARGET_DEFAULT |
37 | #define TARGET_SUBTARGET_DEFAULT \ | |
38 | (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_VECT8_RETURNS) | |
39 | ||
88f4e766 OH |
40 | #undef PTRDIFF_TYPE |
41 | #define PTRDIFF_TYPE (TARGET_LP64 ? "long int" : "int") | |
42 | ||
43 | #undef SIZE_TYPE | |
44 | #define SIZE_TYPE (TARGET_LP64 ? "long unsigned int" : "unsigned int") | |
45 | ||
9a835ba4 OH |
46 | /* We cannot use PC-relative accesses for VxWorks PIC because there is no |
47 | fixed gap between segments. */ | |
48 | #undef ASM_PREFERRED_EH_DATA_FORMAT | |
49 | ||
88f4e766 OH |
50 | #if TARGET_64BIT_DEFAULT |
51 | #undef VXWORKS_SYSCALL_LIBS_RTP | |
52 | #define VXWORKS_SYSCALL_LIBS_RTP "-lsyscall" | |
53 | #endif | |
54 | ||
9a835ba4 OH |
55 | #endif |
56 | ||
9aed32cc AO |
57 | /* Provide our target specific DBX_REGISTER_NUMBER. VxWorks relies on |
58 | the SVR4 numbering. */ | |
59 | ||
60 | #undef DBX_REGISTER_NUMBER | |
61 | #define DBX_REGISTER_NUMBER(n) \ | |
62 | (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n]) | |
63 | ||
9a835ba4 OH |
64 | /* CPU macro definitions, ordered to account for VxWorks 7 not |
65 | supporting CPUs older than PENTIUM4 since SR0650. */ | |
66 | ||
67 | #define VX_CPUDEF(CPU) builtin_define(VX_CPU_PREFIX "CPU=" #CPU) | |
68 | #define VX_CPUVDEF(CPU) builtin_define(VX_CPU_PREFIX "CPU_VARIANT=" #CPU) | |
69 | ||
cb717c40 | 70 | #define TARGET_OS_CPP_BUILTINS() \ |
d442d7d9 PE |
71 | do \ |
72 | { \ | |
cb717c40 | 73 | VXWORKS_OS_CPP_BUILTINS (); \ |
9a835ba4 OH |
74 | if (TARGET_64BIT) \ |
75 | VX_CPUDEF (X86_64); \ | |
7bdf5155 | 76 | else if (TARGET_CPU_P (PENTIUM4)) \ |
9a835ba4 OH |
77 | { \ |
78 | VX_CPUDEF (PENTIUM4); \ | |
79 | VX_CPUVDEF (PENTIUM4); \ | |
80 | } \ | |
7bdf5155 | 81 | else if (TARGET_CPU_P (CORE2)) \ |
9a835ba4 | 82 | VX_CPUDEF (CORE2); \ |
7bdf5155 | 83 | else if (TARGET_CPU_P (NEHALEM)) \ |
9a835ba4 | 84 | VX_CPUDEF (NEHALEM); \ |
7bdf5155 | 85 | else if (TARGET_CPU_P (SANDYBRIDGE)) \ |
9a835ba4 | 86 | VX_CPUDEF (SANDYBRIDGE); \ |
7bdf5155 | 87 | else if (TARGET_CPU_P (HASWELL)) \ |
9a835ba4 | 88 | VX_CPUDEF (HASWELL); \ |
7bdf5155 | 89 | else if (TARGET_CPU_P (SILVERMONT)) \ |
9a835ba4 | 90 | VX_CPUDEF (SILVERMONT); \ |
7bdf5155 | 91 | else if (TARGET_CPU_P (SKYLAKE) || TARGET_CPU_P (SKYLAKE_AVX512)) \ |
9a835ba4 | 92 | VX_CPUDEF (SKYLAKE); \ |
7bdf5155 | 93 | else if (TARGET_CPU_P (GOLDMONT)) \ |
9a835ba4 OH |
94 | VX_CPUDEF (GOLDMONT); \ |
95 | else if (TARGET_VXWORKS7) \ | |
96 | VX_CPUDEF (PENTIUM4); \ | |
7bdf5155 | 97 | else if (TARGET_CPU_P (I386)) \ |
9a835ba4 | 98 | VX_CPUDEF (I80386); \ |
7bdf5155 | 99 | else if (TARGET_CPU_P (I486)) \ |
9a835ba4 | 100 | VX_CPUDEF (I80486); \ |
7bdf5155 | 101 | else if (TARGET_CPU_P (PENTIUM)) \ |
9a835ba4 OH |
102 | { \ |
103 | VX_CPUDEF (PENTIUM); \ | |
104 | VX_CPUVDEF (PENTIUM); \ | |
105 | } \ | |
7bdf5155 | 106 | else if (TARGET_CPU_P (PENTIUMPRO)) \ |
9a835ba4 OH |
107 | { \ |
108 | VX_CPUDEF (PENTIUM2); \ | |
109 | VX_CPUVDEF (PENTIUMPRO); \ | |
110 | } \ | |
580536aa | 111 | else \ |
9a835ba4 OH |
112 | VX_CPUDEF (I80386); \ |
113 | } \ | |
d442d7d9 | 114 | while (0) |
55047c9d | 115 | |
d442d7d9 PE |
116 | #undef CPP_SPEC |
117 | #define CPP_SPEC VXWORKS_ADDITIONAL_CPP_SPEC | |
9a835ba4 OH |
118 | #undef CC1_SPEC |
119 | #define CC1_SPEC VXWORKS_CC1_SPEC | |
d442d7d9 PE |
120 | #undef LIB_SPEC |
121 | #define LIB_SPEC VXWORKS_LIB_SPEC | |
122 | #undef STARTFILE_SPEC | |
123 | #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC | |
124 | #undef ENDFILE_SPEC | |
125 | #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC | |
126 | #undef LINK_SPEC | |
127 | #define LINK_SPEC VXWORKS_LINK_SPEC | |
128 | ||
129 | #undef SUBTARGET_SWITCHES | |
130 | #define SUBTARGET_SWITCHES EXTRA_SUBTARGET_SWITCHES | |
131 | ||
132 | #undef SUBTARGET_OVERRIDE_OPTIONS | |
133 | #define SUBTARGET_OVERRIDE_OPTIONS VXWORKS_OVERRIDE_OPTIONS | |
134 | ||
135 | /* No _mcount profiling on VxWorks. */ | |
136 | #undef FUNCTION_PROFILER | |
137 | #define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO) | |
10d7f5f3 | 138 | |
3488bd6b EB |
139 | /* Define this to be nonzero if static stack checking is supported. */ |
140 | #define STACK_CHECK_STATIC_BUILTIN 1 | |
141 | ||
142 | /* This platform supports the probing method of stack checking (RTP mode). | |
9a835ba4 | 143 | 8K is reserved in the stack to propagate exceptions in case of overflow. |
580536aa | 144 | On 64-bit targets, we double that size. */ |
9a835ba4 OH |
145 | |
146 | #define STACK_CHECK_PROTECT (TARGET_64BIT_DEFAULT ? 16 * 1024 : 8 * 1024) |