1 |
709 |
jeremybenn |
/* 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 |
|
|
|
67 |
|
|
#define ARM_TARGET2_DWARF_FORMAT DW_EH_PE_absptr
|