| 1 | /* |
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| 2 | * hosted io support. |
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| 3 | * |
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| 4 | * Copyright (c) 2006 CodeSourcery 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 | #include <stdint.h> |
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| 18 | #include <sys/types.h> |
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| 19 | #include <sys/time.h> |
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| 20 | #include <sys/stat.h> |
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| 21 | |
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| 22 | #define HOSTED_EXIT 0 |
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| 23 | #define HOSTED_INIT_SIM 1 |
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| 24 | #define HOSTED_OPEN 2 |
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| 25 | #define HOSTED_CLOSE 3 |
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| 26 | #define HOSTED_READ 4 |
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| 27 | #define HOSTED_WRITE 5 |
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| 28 | #define HOSTED_LSEEK 6 |
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| 29 | #define HOSTED_RENAME 7 |
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| 30 | #define HOSTED_UNLINK 8 |
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| 31 | #define HOSTED_STAT 9 |
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| 32 | #define HOSTED_FSTAT 10 |
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| 33 | #define HOSTED_GETTIMEOFDAY 11 |
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| 34 | #define HOSTED_ISATTY 12 |
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| 35 | #define HOSTED_SYSTEM 13 |
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| 36 | |
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| 37 | /* This function is provided by the board's BSP, because the precise |
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| 38 | mechanism of informing gdb is board specific. */ |
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| 39 | extern int __io_hosted (int func, void *args); |
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| 40 | |
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| 41 | /* Protocol specific representation of datatypes, as specified in D.9.11 |
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| 42 | * of the GDB manual. |
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| 43 | * Note that since the m68k is big-endian, we can use native |
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| 44 | * representations of integer datatypes in structured datatypes. */ |
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| 45 | |
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| 46 | typedef uint32_t gdb_mode_t; |
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| 47 | typedef uint32_t gdb_time_t; |
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| 48 | |
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| 49 | struct gdb_stat { |
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| 50 | uint32_t st_dev; /* device */ |
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| 51 | uint32_t st_ino; /* inode */ |
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| 52 | gdb_mode_t st_mode; /* protection */ |
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| 53 | uint32_t st_nlink; /* number of hard links */ |
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| 54 | uint32_t st_uid; /* user ID of owner */ |
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| 55 | uint32_t st_gid; /* group ID of owner */ |
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| 56 | uint32_t st_rdev; /* device type (if inode device) */ |
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| 57 | uint64_t st_size; /* total size, in bytes */ |
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| 58 | uint64_t st_blksize; /* blocksize for filesystem I/O */ |
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| 59 | uint64_t st_blocks; /* number of blocks allocated */ |
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| 60 | gdb_time_t st_atime; /* time of last access */ |
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| 61 | gdb_time_t st_mtime; /* time of last modification */ |
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| 62 | gdb_time_t st_ctime; /* time of last change */ |
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| 63 | }; |
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| 64 | |
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| 65 | struct gdb_timeval { |
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| 66 | gdb_time_t tv_sec; /* second */ |
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| 67 | uint64_t tv_usec; /* microsecond */ |
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| 68 | }; |
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| 69 | |
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| 70 | |
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| 71 | /* Parameters are passed between the library and the debugging stub |
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| 72 | * in a fixed-size buffer. |
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| 73 | */ |
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| 74 | |
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| 75 | typedef uint32_t gdb_parambuf_t[4]; |
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| 76 | |
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| 77 | /* open flags */ |
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| 78 | |
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| 79 | #define GDB_O_RDONLY 0x0 |
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| 80 | #define GDB_O_WRONLY 0x1 |
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| 81 | #define GDB_O_RDWR 0x2 |
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| 82 | #define GDB_O_APPEND 0x8 |
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| 83 | #define GDB_O_CREAT 0x200 |
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| 84 | #define GDB_O_TRUNC 0x400 |
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| 85 | #define GDB_O_EXCL 0x800 |
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| 86 | |
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| 87 | /* mode_t values */ |
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| 88 | |
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| 89 | #define GDB_S_IFREG 0100000 |
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| 90 | #define GDB_S_IFDIR 040000 |
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| 91 | #define GDB_S_IRUSR 0400 |
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| 92 | #define GDB_S_IWUSR 0200 |
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| 93 | #define GDB_S_IXUSR 0100 |
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| 94 | #define GDB_S_IRGRP 040 |
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| 95 | #define GDB_S_IWGRP 020 |
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| 96 | #define GDB_S_IXGRP 010 |
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| 97 | #define GDB_S_IROTH 04 |
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| 98 | #define GDB_S_IWOTH 02 |
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| 99 | #define GDB_S_IXOTH 01 |
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| 100 | |
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| 101 | /* errno values */ |
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| 102 | |
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| 103 | #define GDB_EPERM 1 |
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| 104 | #define GDB_ENOENT 2 |
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| 105 | #define GDB_EINTR 4 |
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| 106 | #define GDB_EBADF 9 |
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| 107 | #define GDB_EACCES 13 |
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| 108 | #define GDB_EFAULT 14 |
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| 109 | #define GDB_EBUSY 16 |
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| 110 | #define GDB_EEXIST 17 |
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| 111 | #define GDB_ENODEV 19 |
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| 112 | #define GDB_ENOTDIR 20 |
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| 113 | #define GDB_EISDIR 21 |
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| 114 | #define GDB_EINVAL 22 |
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| 115 | #define GDB_ENFILE 23 |
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| 116 | #define GDB_EMFILE 24 |
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| 117 | #define GDB_EFBIG 27 |
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| 118 | #define GDB_ENOSPC 28 |
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| 119 | #define GDB_ESPIPE 29 |
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| 120 | #define GDB_EROFS 30 |
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| 121 | #define GDB_ENAMETOOLONG 91 |
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| 122 | #define GDB_EUNKNOWN 9999 |
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| 123 | |
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| 124 | /* lseek flags */ |
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| 125 | |
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| 126 | #define GDB_SEEK_SET 0 |
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| 127 | #define GDB_SEEK_CUR 1 |
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| 128 | #define GDB_SEEK_END 2 |
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| 129 | |
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| 130 | |
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| 131 | /* conversion functions */ |
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| 132 | |
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| 133 | extern gdb_mode_t __hosted_to_gdb_mode_t (mode_t m); |
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| 134 | extern int32_t __hosted_to_gdb_open_flags (int f); |
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| 135 | extern int32_t __hosted_to_gdb_lseek_flags (int f); |
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| 136 | |
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| 137 | extern void __hosted_from_gdb_stat (const struct gdb_stat *gs, |
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| 138 | struct stat *s); |
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| 139 | extern void __hosted_from_gdb_timeval (const struct gdb_timeval *gt, |
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| 140 | struct timeval *t); |
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| 141 | extern int __hosted_from_gdb_errno (int32_t err); |
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