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Diffstat (limited to 'kernel/arch/tile/include/asm/sections.h')
| -rw-r--r-- | kernel/arch/tile/include/asm/sections.h | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/kernel/arch/tile/include/asm/sections.h b/kernel/arch/tile/include/asm/sections.h new file mode 100644 index 000000000..86a746243 --- /dev/null +++ b/kernel/arch/tile/include/asm/sections.h @@ -0,0 +1,47 @@ +/* + * Copyright 2010 Tilera Corporation. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation, version 2. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for + * more details. + */ + +#ifndef _ASM_TILE_SECTIONS_H +#define _ASM_TILE_SECTIONS_H + +#define arch_is_kernel_data arch_is_kernel_data + +#include <asm-generic/sections.h> + +/* Write-once data is writable only till the end of initialization. */ +extern char __w1data_begin[], __w1data_end[]; + +extern char vdso_start[], vdso_end[]; +#ifdef CONFIG_COMPAT +extern char vdso32_start[], vdso32_end[]; +#endif + +/* Not exactly sections, but PC comparison points in the code. */ +extern char __rt_sigreturn[], __rt_sigreturn_end[]; +#ifdef __tilegx__ +extern char __start_unalign_asm_code[], __end_unalign_asm_code[]; +#else +extern char sys_cmpxchg[], __sys_cmpxchg_end[]; +extern char __sys_cmpxchg_grab_lock[]; +extern char __start_atomic_asm_code[], __end_atomic_asm_code[]; +#endif + +/* Handle the discontiguity between _sdata and _text. */ +static inline int arch_is_kernel_data(unsigned long addr) +{ + return addr >= (unsigned long)_sdata && + addr < (unsigned long)_end; +} + +#endif /* _ASM_TILE_SECTIONS_H */ |