Last change
on this file since 474 was
444,
checked in by satin@…, 6 years ago
|
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
|
File size:
1.2 KB
|
Rev | Line | |
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[444] | 1 | /* |
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| 2 | * C library support files for the Blackfin processor |
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| 3 | * |
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| 4 | * Copyright (C) 2010 Analog Devices, Inc. |
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| 5 | * |
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| 6 | * The authors hereby grant permission to use, copy, modify, distribute, |
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| 7 | * and license this software and its documentation for any purpose, provided |
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| 8 | * that existing copyright notices are retained in all copies and that this |
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| 9 | * notice is included verbatim in any distributions. No written agreement, |
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| 10 | * license, or royalty fee is required for any of the authorized uses. |
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| 11 | * Modifications to this software may be copyrighted by their authors |
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| 12 | * and need not follow the licensing terms described here, provided that |
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| 13 | * the new terms are clearly indicated on the first page of each file where |
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| 14 | * they apply. |
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| 15 | */ |
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| 16 | |
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| 17 | /* This is a callback which gcc itself wants to flush jump tables. |
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| 18 | |
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| 19 | Map it into L1 Text because of anomalies 05-00-0312 and 05-00-0419. */ |
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| 20 | |
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| 21 | __attribute__ ((l1_text)) |
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| 22 | void __clear_cache_range (char *beg, char *end) |
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| 23 | { |
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| 24 | char *ptr = beg; |
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| 25 | do { |
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| 26 | __asm__ __volatile__ ("FLUSH [%0++];" : "+a" (ptr) : : "memory"); |
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| 27 | } while (ptr <= end); |
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| 28 | ptr = beg; |
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| 29 | __asm__ __volatile__ ("SSYNC;"); |
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| 30 | do { |
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| 31 | __asm__ __volatile__ ("IFLUSH [%0++];" : "+a" (ptr) : : "memory"); |
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| 32 | } while (ptr <= end); |
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| 33 | } |
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