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comparison gcc/config/arm/uclinux-eabi.h @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /* Definitions for ARM EABI ucLinux
2 Copyright (C) 2006, 2007, 2008 Free Software Foundation, Inc.
3 Contributed by Paul Brook <paul@codesourcery.com>
4
5 This file is part of GCC.
6
7 GCC is free software; you can redistribute it and/or modify it
8 under the terms of the GNU General Public License as published
9 by the Free Software Foundation; either version 3, or (at your
10 option) any later version.
11
12 GCC is distributed in the hope that it will be useful, but WITHOUT
13 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
14 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
15 License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3. If not see
19 <http://www.gnu.org/licenses/>. */
20
21 /* Override settings that are different to the uclinux-elf or
22 bpabi defaults. */
23
24 #undef TARGET_DEFAULT
25 #define TARGET_DEFAULT (MASK_SINGLE_PIC_BASE | MASK_INTERWORK)
26
27 /* On EABI GNU/Linux, we want both the BPABI builtins and the
28 GNU/Linux builtins. */
29 #undef TARGET_OS_CPP_BUILTINS
30 #define TARGET_OS_CPP_BUILTINS() \
31 do \
32 { \
33 TARGET_BPABI_CPP_BUILTINS(); \
34 builtin_define ("__uClinux__"); \
35 builtin_define ("__gnu_linux__"); \
36 builtin_define_std ("linux"); \
37 builtin_define_std ("unix"); \
38 builtin_assert ("system=linux"); \
39 builtin_assert ("system=unix"); \
40 builtin_assert ("system=posix"); \
41 } \
42 while (false)
43
44 #undef SUBTARGET_EXTRA_LINK_SPEC
45 #define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi -elf2flt" \
46 " --pic-veneer --target2=abs"
47
48 /* We default to the "aapcs-linux" ABI so that enums are int-sized by
49 default. */
50 #undef ARM_DEFAULT_ABI
51 #define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX
52
53 /* Clear the instruction cache from `beg' to `end'. This makes an
54 inline system call to SYS_cacheflush. */
55 #undef CLEAR_INSN_CACHE
56 #define CLEAR_INSN_CACHE(BEG, END) \
57 { \
58 register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \
59 register unsigned long _end __asm ("a2") = (unsigned long) (END); \
60 register unsigned long _flg __asm ("a3") = 0; \
61 register unsigned long _scno __asm ("r7") = 0xf0002; \
62 __asm __volatile ("swi 0x0 @ sys_cacheflush" \
63 : "=r" (_beg) \
64 : "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \
65 }
66