1 /* Definitions of target machine for GNU compiler,
2 for PowerPC e500 machines running FreeBSD.
4 Copyright (C) 2003, 2004 Free Software Foundation, Inc.
5 Contributed by Aldy Hernandez (aldy@quesejoda.com).
7 This file is part of GCC.
9 GCC is free software; you can redistribute it and/or modify it
10 under the terms of the GNU General Public License as published
11 by the Free Software Foundation; either version 2, or (at your
12 option) any later version.
14 GCC is distributed in the hope that it will be useful, but WITHOUT
15 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
17 License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING. If not, write to the
21 Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
22 MA 02110-1301, USA. */
25 #define TARGET_VERSION fprintf (stderr, " (PowerPC E500 FreeBSD)");
27 /* Override rs6000.h and sysv4.h definition. */
29 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS | MASK_STRICT_ALIGN)
31 #undef PROCESSOR_DEFAULT
37 #undef TARGET_E500_SINGLE
38 #undef TARGET_E500_DOUBLE
40 #define PROCESSOR_DEFAULT PROCESSOR_PPC8540
41 #define TARGET_SPE_ABI rs6000_spe_abi
42 #define TARGET_SPE rs6000_spe
43 #define TARGET_E500 (rs6000_cpu == PROCESSOR_PPC8540)
44 #define TARGET_ISEL rs6000_isel
45 #define TARGET_FPRS (rs6000_float_gprs == 0)
46 #define TARGET_E500_SINGLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 1)
47 #define TARGET_E500_DOUBLE (TARGET_HARD_FLOAT && rs6000_float_gprs == 2)
49 #undef SUBSUBTARGET_OVERRIDE_OPTIONS
50 #define SUBSUBTARGET_OVERRIDE_OPTIONS \
51 if (rs6000_select[1].string == NULL) \
52 rs6000_cpu = PROCESSOR_PPC8540; \
53 if (!rs6000_explicit_options.abi) \
55 if (!rs6000_explicit_options.float_gprs) \
56 rs6000_float_gprs = 1; \
57 /* See note below. */ \
58 /*if (!rs6000_explicit_options.long_double)*/ \
59 /* rs6000_long_double_type_size = 128;*/ \
60 if (!rs6000_explicit_options.spe) \
62 if (!rs6000_explicit_options.isel) \
64 if (target_flags & MASK_64BIT) \
65 error ("-m64 not supported in this configuration")
67 /* The e500 ABI says that either long doubles are 128 bits, or if
68 implemented in any other size, the compiler/linker should error out.
69 We have no emulation libraries for 128 bit long doubles, and I hate
70 the dozens of failures on the regression suite. So I'm breaking ABI
71 specifications, until I properly fix the emulation.
74 #undef CPP_LONGDOUBLE_DEFAULT_SPEC
75 #define CPP_LONGDOUBLE_DEFAULT_SPEC "-D__LONG_DOUBLE_128__=1"
78 #undef ASM_DEFAULT_SPEC
79 #define ASM_DEFAULT_SPEC "-mppc -mspe -me500"