113 lines
4.2 KiB
C
113 lines
4.2 KiB
C
#include <common.h>
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#include <mem_malloc.h>
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#include <errno.h>
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/*
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* Begin and End of memory area for malloc(), and current "brk"
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*/
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static ulong mem_malloc_start = 0;
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static ulong mem_malloc_end = 0;
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static ulong mem_malloc_brk = 0;
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void mem_malloc_init (void *start, void *end)
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{
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mem_malloc_start = (ulong)start;
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mem_malloc_end = (ulong)end;
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mem_malloc_brk = mem_malloc_start;
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memset ((void *) mem_malloc_start, 0,
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mem_malloc_end - mem_malloc_start);
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}
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void *sbrk (ptrdiff_t increment)
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{
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ulong old = mem_malloc_brk;
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ulong new = old + increment;
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if ((new < mem_malloc_start) || (new > mem_malloc_end)) {
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return (NULL);
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}
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mem_malloc_brk = new;
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return ((void *) old);
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}
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int errno;
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void perror(const char *s)
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{
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#ifdef CONFIG_ERRNO_MESSAGES
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char *str;
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switch(-errno) {
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case 0 : str = "No error"; break;
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case EPERM : str = "Operation not permitted"; break;
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case ENOENT : str = "No such file or directory"; break;
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case EIO : str = "I/O error"; break;
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case ENXIO : str = "No such device or address"; break;
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case E2BIG : str = "Arg list too long"; break;
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case ENOEXEC : str = "Exec format error"; break;
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case EBADF : str = "Bad file number"; break;
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case ENOMEM : str = "Out of memory"; break;
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case EACCES : str = "Permission denied"; break;
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case EFAULT : str = "Bad address"; break;
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case EBUSY : str = "Device or resource busy"; break;
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case EEXIST : str = "File exists"; break;
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case ENODEV : str = "No such device"; break;
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case ENOTDIR : str = "Not a directory"; break;
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case EISDIR : str = "Is a directory"; break;
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case EINVAL : str = "Invalid argument"; break;
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case ENOSPC : str = "No space left on device"; break;
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case ESPIPE : str = "Illegal seek"; break;
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case EROFS : str = "Read-only file system"; break;
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case ENAMETOOLONG : str = "File name too long"; break;
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case ENOSYS : str = "Function not implemented"; break;
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case ENOTEMPTY : str = "Directory not empty"; break;
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#if 0 /* These are probably not needed */
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case ENOTBLK : str = "Block device required"; break;
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case EFBIG : str = "File too large"; break;
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case EBADSLT : str = "Invalid slot"; break;
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case ENODATA : str = "No data available"; break;
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case ETIME : str = "Timer expired"; break;
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case ENONET : str = "Machine is not on the network"; break;
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case EADV : str = "Advertise error"; break;
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case ECOMM : str = "Communication error on send"; break;
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case EPROTO : str = "Protocol error"; break;
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case EBADMSG : str = "Not a data message"; break;
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case EOVERFLOW : str = "Value too large for defined data type"; break;
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case EBADFD : str = "File descriptor in bad state"; break;
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case EREMCHG : str = "Remote address changed"; break;
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case EMSGSIZE : str = "Message too long"; break;
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case EPROTOTYPE : str = "Protocol wrong type for socket"; break;
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case ENOPROTOOPT : str = "Protocol not available"; break;
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case EPROTONOSUPPORT : str = "Protocol not supported"; break;
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case ESOCKTNOSUPPORT : str = "Socket type not supported"; break;
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case EPFNOSUPPORT : str = "Protocol family not supported"; break;
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case EAFNOSUPPORT : str = "Address family not supported by protocol"; break;
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case EADDRINUSE : str = "Address already in use"; break;
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case EADDRNOTAVAIL : str = "Cannot assign requested address"; break;
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case ENETDOWN : str = "Network is down"; break;
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case ENETUNREACH : str = "Network is unreachable"; break;
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case ENETRESET : str = "Network dropped connection because of reset"; break;
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case ECONNABORTED : str = "Software caused connection abort"; break;
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case ECONNRESET : str = "Connection reset by peer"; break;
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case ENOBUFS : str = "No buffer space available"; break;
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case ETIMEDOUT : str = "Connection timed out"; break;
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case ECONNREFUSED : str = "Connection refused"; break;
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case EHOSTDOWN : str = "Host is down"; break;
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case EHOSTUNREACH : str = "No route to host"; break;
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case EALREADY : str = "Operation already in progress"; break;
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case EINPROGRESS : str = "Operation now in progress"; break;
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case ESTALE : str = "Stale NFS file handle"; break;
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case EISNAM : str = "Is a named type file"; break;
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case EREMOTEIO : str = "Remote I/O error"; break;
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#endif
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default : str = "unknown error"; break;
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};
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printf("%s: %s\n", s, str);
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#else
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printf("%s returned with %d\n", s, errno);
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#endif
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}
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