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| 1 | /* |
1 | /* |
| 2 | * Copyright (C) 2006 Josef Cejka |
2 | * Copyright (c) 2006 Josef Cejka |
| 3 | * All rights reserved. |
3 | * All rights reserved. |
| 4 | * |
4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
7 | * are met: |
| 8 | * |
8 | * |
| 9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
| 14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
| 16 | * |
16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| 29 | /** @addtogroup libcmips32 |
29 | /** @addtogroup libcmips32 |
| 30 | * @{ |
30 | * @{ |
| 31 | */ |
31 | */ |
| 32 | /** @file |
32 | /** @file |
| 33 | * @ingroup libcmips32eb |
33 | * @ingroup libcmips32eb |
| 34 | */ |
34 | */ |
| 35 | 35 | ||
| 36 | #ifndef LIBC_mips32_STACKARG_H_ |
36 | #ifndef LIBC_mips32_STACKARG_H_ |
| 37 | #define LIBC_mips32_STACKARG_H_ |
37 | #define LIBC_mips32_STACKARG_H_ |
| 38 | 38 | ||
| 39 | /* dont allow to define it second time in stdarg.h */ |
39 | /* dont allow to define it second time in stdarg.h */ |
| 40 | #define __VARARGS_DEFINED |
40 | #define __VARARGS_DEFINED |
| 41 | 41 | ||
| 42 | #include <types.h> |
42 | #include <types.h> |
| 43 | 43 | ||
| 44 | /** |
44 | /** |
| 45 | * va_arg macro for MIPS32 - problem is that 64 bit values must be aligned on an 8-byte boundary (32bit values not) |
45 | * va_arg macro for MIPS32 - problem is that 64 bit values must be aligned on an 8-byte boundary (32bit values not) |
| 46 | * To satisfy this, paddings must be sometimes inserted. |
46 | * To satisfy this, paddings must be sometimes inserted. |
| 47 | */ |
47 | */ |
| 48 | 48 | ||
| 49 | typedef uint8_t* va_list; |
49 | typedef uint8_t* va_list; |
| 50 | 50 | ||
| 51 | #define va_start(ap, lst) \ |
51 | #define va_start(ap, lst) \ |
| 52 | ((ap) = (va_list)&(lst) + sizeof(lst)) |
52 | ((ap) = (va_list)&(lst) + sizeof(lst)) |
| 53 | 53 | ||
| 54 | #define va_arg(ap, type) \ |
54 | #define va_arg(ap, type) \ |
| 55 | (((type *)((ap) = (va_list)( (sizeof(type) <= 4) ? ((uint32_t)((ap) + 2*4 - 1) & (~3)) : ((uint32_t)((ap) + 2*8 -1) & (~7)) )))[-1]) |
55 | (((type *)((ap) = (va_list)( (sizeof(type) <= 4) ? ((uint32_t)((ap) + 2*4 - 1) & (~3)) : ((uint32_t)((ap) + 2*8 -1) & (~7)) )))[-1]) |
| 56 | 56 | ||
| 57 | #define va_end(ap) |
57 | #define va_end(ap) |
| 58 | 58 | ||
| 59 | #endif |
59 | #endif |
| 60 | 60 | ||
| 61 | /** @} |
61 | /** @} |
| 62 | */ |
62 | */ |
| 63 | 63 | ||