projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| 077fc835 | 1 | /* Configuration file for ARM GNU/Linux EABI targets. |
| 464aea98 | 2 | Copyright (C) 2004, 2005, 2006 |
| 077fc835 KH |
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 | |
| 9 | under the terms of the GNU General Public License as published | |
| 10 | by the Free Software Foundation; either version 2, or (at your | |
| 11 | option) any later version. | |
| 12 | ||
| 13 | GCC is distributed in the hope that it will be useful, but WITHOUT | |
| 14 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
| 15 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
| 16 | License for more details. | |
| 17 | ||
| 18 | You should have received a copy of the GNU General Public License | |
| 19 | along with GCC; see the file COPYING. If not, write to | |
| 20 | the Free Software Foundation, 51 Franklin Street, Fifth Floor, | |
| 21 | Boston, MA 02110-1301, USA. */ | |
| 22 | ||
| 23 | /* On EABI GNU/Linux, we want both the BPABI builtins and the | |
| 24 | GNU/Linux builtins. */ | |
| 25 | #undef TARGET_OS_CPP_BUILTINS | |
| 26 | #define TARGET_OS_CPP_BUILTINS() \ | |
| 27 | do \ | |
| 28 | { \ | |
| 29 | TARGET_BPABI_CPP_BUILTINS(); \ | |
| 30 | LINUX_TARGET_OS_CPP_BUILTINS(); \ | |
| 31 | } \ | |
| 32 | while (false) | |
| 33 | ||
| 34 | /* We default to a soft-float ABI so that binaries can run on all | |
| 35 | target hardware. */ | |
| 36 | #undef TARGET_DEFAULT_FLOAT_ABI | |
| 37 | #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT | |
| 38 | ||
| 39 | /* We default to the "aapcs-linux" ABI so that enums are int-sized by | |
| 40 | default. */ | |
| 41 | #undef ARM_DEFAULT_ABI | |
| 42 | #define ARM_DEFAULT_ABI ARM_ABI_AAPCS_LINUX | |
| 43 | ||
| 44 | /* Default to armv5t so that thumb shared libraries work. | |
| 45 | The ARM10TDMI core is the default for armv5t, so set | |
| 46 | SUBTARGET_CPU_DEFAULT to achieve this. */ | |
| 47 | #undef SUBTARGET_CPU_DEFAULT | |
| 48 | #define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm10tdmi | |
| 49 | ||
| 50 | #undef SUBTARGET_EXTRA_LINK_SPEC | |
| 51 | #define SUBTARGET_EXTRA_LINK_SPEC " -m armelf_linux_eabi" | |
| 52 | ||
| 53 | /* Use ld-linux.so.3 so that it will be possible to run "classic" | |
| 54 | GNU/Linux binaries on an EABI system. */ | |
| 464aea98 JM |
55 | #undef GLIBC_DYNAMIC_LINKER |
| 56 | #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.3" | |
| 077fc835 KH |
57 | |
| 58 | /* At this point, bpabi.h will have clobbered LINK_SPEC. We want to | |
| 59 | use the GNU/Linux version, not the generic BPABI version. */ | |
| 60 | #undef LINK_SPEC | |
| 61 | #define LINK_SPEC LINUX_TARGET_LINK_SPEC | |
| 62 | ||
| 63 | /* Use the default LIBGCC_SPEC, not the version in linux-elf.h, as we | |
| 64 | do not use -lfloat. */ | |
| 65 | #undef LIBGCC_SPEC | |
| 66 | ||
| 5d7c0add | 67 | /* Clear the instruction cache from `beg' to `end'. This makes an |
| 3303be15 | 68 | inline system call to SYS_cacheflush. */ |
| 5d7c0add DJ |
69 | #undef CLEAR_INSN_CACHE |
| 70 | #define CLEAR_INSN_CACHE(BEG, END) \ | |
| 71 | { \ | |
| 72 | register unsigned long _beg __asm ("a1") = (unsigned long) (BEG); \ | |
| 73 | register unsigned long _end __asm ("a2") = (unsigned long) (END); \ | |
| 74 | register unsigned long _flg __asm ("a3") = 0; \ | |
| 75 | register unsigned long _scno __asm ("r7") = 0xf0002; \ | |
| 3303be15 | 76 | __asm __volatile ("swi 0 @ sys_cacheflush" \ |
| 5d7c0add DJ |
77 | : "=r" (_beg) \ |
| 78 | : "0" (_beg), "r" (_end), "r" (_flg), "r" (_scno)); \ | |
| 79 | } |