arch/um/os-Linux/user_syms.c

   1 #include "linux/types.h"
   2 #include "linux/module.h"
   3
   4 /* Some of this are builtin function (some are not but could in the future),
   5  * so I *must* declare good prototypes for them and then EXPORT them.
   6  * The kernel code uses the macro defined by include/linux/string.h,
   7  * so I undef macros; the userspace code does not include that and I
   8  * add an EXPORT for the glibc one.*/
   9
  10 #undef strlen
  11 #undef strstr
  12 #undef memcpy
  13 #undef memset
  14
  15 extern size_t strlen(const char *);
  16 extern void *memcpy(void *, const void *, size_t);
  17 extern void *memmove(void *, const void *, size_t);
  18 extern void *memset(void *, int, size_t);
  19 extern int printf(const char *, ...);
  20
  21 /* If they're not defined, the export is included in lib/string.c.*/
  22 #ifdef __HAVE_ARCH_STRLEN
  23 EXPORT_SYMBOL(strlen);
  24 #endif
  25 #ifdef __HAVE_ARCH_STRSTR
  26 EXPORT_SYMBOL(strstr);
  27 #endif
  28
  29 EXPORT_SYMBOL(memcpy);
  30 EXPORT_SYMBOL(memmove);
  31 EXPORT_SYMBOL(memset);
  32 EXPORT_SYMBOL(printf);
  33
  34 /* Here, instead, I can provide a fake prototype. Yes, someone cares: genksyms.
  35  * However, the modules will use the CRC defined *here*, no matter if it is
  36  * good; so the versions of these symbols will always match
  37  */
  38 #define EXPORT_SYMBOL_PROTO(sym)       \
  39        int sym(void);                  \
  40        EXPORT_SYMBOL(sym);
  41
  42 extern void readdir64(void) __attribute__((weak));
  43 EXPORT_SYMBOL(readdir64);
  44 extern void truncate64(void) __attribute__((weak));
  45 EXPORT_SYMBOL(truncate64);
  46
  47 #ifdef SUBARCH_i386
  48 EXPORT_SYMBOL(vsyscall_ehdr);
  49 EXPORT_SYMBOL(vsyscall_end);
  50 #endif
  51
  52 EXPORT_SYMBOL_PROTO(__errno_location);
  53
  54 EXPORT_SYMBOL_PROTO(access);
  55 EXPORT_SYMBOL_PROTO(open);
  56 EXPORT_SYMBOL_PROTO(open64);
  57 EXPORT_SYMBOL_PROTO(close);
  58 EXPORT_SYMBOL_PROTO(read);
  59 EXPORT_SYMBOL_PROTO(write);
  60 EXPORT_SYMBOL_PROTO(dup2);
  61 EXPORT_SYMBOL_PROTO(__xstat);
  62 EXPORT_SYMBOL_PROTO(__lxstat);
  63 EXPORT_SYMBOL_PROTO(__lxstat64);
  64 EXPORT_SYMBOL_PROTO(lseek);
  65 EXPORT_SYMBOL_PROTO(lseek64);
  66 EXPORT_SYMBOL_PROTO(chown);
  67 EXPORT_SYMBOL_PROTO(truncate);
  68 EXPORT_SYMBOL_PROTO(utime);
  69 EXPORT_SYMBOL_PROTO(chmod);
  70 EXPORT_SYMBOL_PROTO(rename);
  71 EXPORT_SYMBOL_PROTO(__xmknod);
  72
  73 EXPORT_SYMBOL_PROTO(symlink);
  74 EXPORT_SYMBOL_PROTO(link);
  75 EXPORT_SYMBOL_PROTO(unlink);
  76 EXPORT_SYMBOL_PROTO(readlink);
  77
  78 EXPORT_SYMBOL_PROTO(mkdir);
  79 EXPORT_SYMBOL_PROTO(rmdir);
  80 EXPORT_SYMBOL_PROTO(opendir);
  81 EXPORT_SYMBOL_PROTO(readdir);
  82 EXPORT_SYMBOL_PROTO(closedir);
  83 EXPORT_SYMBOL_PROTO(seekdir);
  84 EXPORT_SYMBOL_PROTO(telldir);
  85
  86 EXPORT_SYMBOL_PROTO(ioctl);
  87
  88 EXPORT_SYMBOL_PROTO(pread64);
  89 EXPORT_SYMBOL_PROTO(pwrite64);
  90
  91 EXPORT_SYMBOL_PROTO(statfs);
  92 EXPORT_SYMBOL_PROTO(statfs64);
  93
  94 EXPORT_SYMBOL_PROTO(getuid);
  95
  96 EXPORT_SYMBOL_PROTO(fsync);
  97 EXPORT_SYMBOL_PROTO(fdatasync);
  98
  99 /* Export symbols used by GCC for the stack protector. */
 100 extern void __stack_smash_handler(void *) __attribute__((weak));
 101 EXPORT_SYMBOL(__stack_smash_handler);
 102
 103 extern long __guard __attribute__((weak));
 104 EXPORT_SYMBOL(__guard);
 105
 106 /*
 107  * Overrides for Emacs so that we follow Linus's tabbing style.
 108  * Emacs will notice this stuff at the end of the file and automatically
 109  * adjust the settings for this buffer only.  This must remain at the end
 110  * of the file.
 111  * ---------------------------------------------------------------------------
 112  * Local variables:
 113  * c-file-style: "linux"
 114  * End:
 115  */