|
0
|
1 /* Definitions of target machine for GNU compiler. Vxworks PowerPC version.
|
|
|
2 Copyright (C) 1996, 2000, 2002, 2003, 2004, 2005, 2007
|
|
|
3 Free Software Foundation, Inc.
|
|
|
4 Contributed by CodeSourcery, LLC.
|
|
|
5
|
|
|
6 This file is part of GCC.
|
|
|
7
|
|
|
8 GCC is free software; you can redistribute it and/or modify it under
|
|
|
9 the terms of the GNU General Public License as published by the Free
|
|
|
10 Software Foundation; either version 3, or (at your option) any later
|
|
|
11 version.
|
|
|
12
|
|
|
13 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
|
|
14 WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
15 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
16 for more details.
|
|
|
17
|
|
|
18 You should have received a copy of the GNU General Public License
|
|
|
19 along with GCC; see the file COPYING3. If not see
|
|
|
20 <http://www.gnu.org/licenses/>. */
|
|
|
21
|
|
|
22 /* Note to future editors: VxWorks is mostly an EABI target. We do
|
|
|
23 not use rs6000/eabi.h because we would have to override most of
|
|
|
24 it anyway. However, if you change that file, consider making
|
|
|
25 analogous changes here too. */
|
|
|
26
|
|
|
27 #undef TARGET_VERSION
|
|
|
28 #define TARGET_VERSION fprintf (stderr, " (PowerPC VxWorks)");
|
|
|
29
|
|
|
30 /* CPP predefined macros. */
|
|
|
31
|
|
|
32 #undef TARGET_OS_CPP_BUILTINS
|
|
|
33 #define TARGET_OS_CPP_BUILTINS() \
|
|
|
34 do \
|
|
|
35 { \
|
|
|
36 builtin_define ("__ppc"); \
|
|
|
37 builtin_define ("__EABI__"); \
|
|
|
38 builtin_define ("__ELF__"); \
|
|
|
39 builtin_define ("__vxworks"); \
|
|
|
40 builtin_define ("__VXWORKS__"); \
|
|
|
41 if (!TARGET_SOFT_FLOAT) \
|
|
|
42 builtin_define ("__hardfp"); \
|
|
|
43 \
|
|
|
44 /* C89 namespace violation! */ \
|
|
|
45 builtin_define ("CPU_FAMILY=PPC"); \
|
|
|
46 } \
|
|
|
47 while (0)
|
|
|
48
|
|
|
49 /* Only big endian PPC is supported by VxWorks. */
|
|
|
50 #undef BYTES_BIG_ENDIAN
|
|
|
51 #define BYTES_BIG_ENDIAN 1
|
|
|
52
|
|
|
53 /* We have to kill off the entire specs set created by rs6000/sysv4.h
|
|
|
54 and substitute our own set. The top level vxworks.h has done some
|
|
|
55 of this for us. */
|
|
|
56
|
|
|
57 #undef SUBTARGET_EXTRA_SPECS
|
|
|
58 #undef CPP_SPEC
|
|
|
59 #undef CC1_SPEC
|
|
|
60 #undef ASM_SPEC
|
|
|
61
|
|
|
62 #define SUBTARGET_EXTRA_SPECS /* none needed */
|
|
|
63
|
|
|
64 /* FIXME: The only reason we allow no -mcpu switch at all is because
|
|
|
65 config-ml.in insists on a "." multilib. */
|
|
|
66 #define CPP_SPEC \
|
|
|
67 "%{!DCPU=*: \
|
|
|
68 %{mcpu=403 : -DCPU=PPC403 ; \
|
|
|
69 mcpu=405 : -DCPU=PPC405 ; \
|
|
|
70 mcpu=440 : -DCPU=PPC440 ; \
|
|
|
71 mcpu=603 : -DCPU=PPC603 ; \
|
|
|
72 mcpu=604 : -DCPU=PPC604 ; \
|
|
|
73 mcpu=860 : -DCPU=PPC860 ; \
|
|
|
74 mcpu=8540: -DCPU=PPC85XX ; \
|
|
|
75 : -DCPU=PPC604 }}" \
|
|
|
76 VXWORKS_ADDITIONAL_CPP_SPEC
|
|
|
77
|
|
|
78 #define CC1_SPEC \
|
|
|
79 "%{G*} %{mno-sdata:-msdata=none} %{msdata:-msdata=default} \
|
|
|
80 %{mlittle|mlittle-endian:-mstrict-align} \
|
|
|
81 %{profile: -p} \
|
|
|
82 %{fvec:-maltivec} %{fvec-eabi:-maltivec -mabi=altivec}"
|
|
|
83
|
|
|
84 #define ASM_SPEC \
|
|
|
85 "%(asm_cpu) \
|
|
|
86 %{,assembler|,assembler-with-cpp: %{mregnames} %{mno-regnames}} \
|
|
|
87 %{v:-v} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
|
|
|
88 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} -mbig"
|
|
|
89
|
|
|
90 #undef LIB_SPEC
|
|
|
91 #define LIB_SPEC VXWORKS_LIB_SPEC
|
|
|
92 #undef LINK_SPEC
|
|
|
93 #define LINK_SPEC VXWORKS_LINK_SPEC
|
|
|
94 #undef STARTFILE_SPEC
|
|
|
95 #define STARTFILE_SPEC VXWORKS_STARTFILE_SPEC
|
|
|
96 #undef ENDFILE_SPEC
|
|
|
97 #define ENDFILE_SPEC VXWORKS_ENDFILE_SPEC
|
|
|
98
|
|
|
99 /* There is no default multilib. */
|
|
|
100 #undef MULTILIB_DEFAULTS
|
|
|
101
|
|
|
102 #undef TARGET_DEFAULT
|
|
|
103 #define TARGET_DEFAULT \
|
|
|
104 (MASK_POWERPC | MASK_NEW_MNEMONICS | MASK_EABI | MASK_STRICT_ALIGN)
|
|
|
105
|
|
|
106 #undef PROCESSOR_DEFAULT
|
|
|
107 #define PROCESSOR_DEFAULT PROCESSOR_PPC604
|
|
|
108
|
|
|
109 /* Nor sdata, for kernel mode. We use this in
|
|
|
110 SUBSUBTARGET_INITIALIZE_OPTIONS, after rs6000_rtp has been initialized. */
|
|
|
111 #undef SDATA_DEFAULT_SIZE
|
|
|
112 #define SDATA_DEFAULT_SIZE (TARGET_VXWORKS_RTP ? 8 : 0)
|
|
|
113
|
|
|
114 #undef STACK_BOUNDARY
|
|
|
115 #define STACK_BOUNDARY (16*BITS_PER_UNIT)
|
|
|
116 /* Override sysv4.h, reset to the default. */
|
|
|
117 #undef PREFERRED_STACK_BOUNDARY
|
|
|
118
|
|
|
119 /* Make -mcpu=8540 imply SPE. ISEL is automatically enabled, the
|
|
|
120 others must be done by hand. Handle -mrtp. Disable -fPIC
|
|
|
121 for -mrtp - the VxWorks PIC model is not compatible with it. */
|
|
|
122 #undef SUBSUBTARGET_OVERRIDE_OPTIONS
|
|
|
123 #define SUBSUBTARGET_OVERRIDE_OPTIONS \
|
|
|
124 do { \
|
|
|
125 if (TARGET_E500) \
|
|
|
126 { \
|
|
|
127 rs6000_spe = 1; \
|
|
|
128 rs6000_spe_abi = 1; \
|
|
|
129 rs6000_float_gprs = 1; \
|
|
|
130 } \
|
|
|
131 \
|
|
|
132 if (!g_switch_set) \
|
|
|
133 g_switch_value = SDATA_DEFAULT_SIZE; \
|
|
|
134 VXWORKS_OVERRIDE_OPTIONS; \
|
|
|
135 } while (0)
|
|
|
136
|
|
|
137 /* No _mcount profiling on VxWorks. */
|
|
|
138 #undef FUNCTION_PROFILER
|
|
|
139 #define FUNCTION_PROFILER(FILE,LABELNO) VXWORKS_FUNCTION_PROFILER(FILE,LABELNO)
|
