Last change
on this file since 558 was
444,
checked in by satin@…, 7 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.2 KB
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Line | |
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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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