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awilliam
GitHub Repository: awilliam/linux-vfio
 Path: blob/master/arch/um/os-Linux/user_syms.c
10817 views
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#include "linux/types.h"

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#include "linux/module.h"

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/* Some of this are builtin function (some are not but could in the future),

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 * so I *must* declare good prototypes for them and then EXPORT them.

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 * The kernel code uses the macro defined by include/linux/string.h,

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 * so I undef macros; the userspace code does not include that and I

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 * add an EXPORT for the glibc one.

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 */

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#undef strlen

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#undef strstr

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#undef memcpy

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#undef memset

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extern size_t strlen(const char *);

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extern void *memmove(void *, const void *, size_t);

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extern void *memset(void *, int, size_t);

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extern int printf(const char *, ...);

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/* If it's not defined, the export is included in lib/string.c.*/

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#ifdef __HAVE_ARCH_STRSTR

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EXPORT_SYMBOL(strstr);

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#endif

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#ifndef __x86_64__

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extern void *memcpy(void *, const void *, size_t);

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EXPORT_SYMBOL(memcpy);

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#endif

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EXPORT_SYMBOL(memmove);

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EXPORT_SYMBOL(memset);

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EXPORT_SYMBOL(printf);

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/* Here, instead, I can provide a fake prototype. Yes, someone cares: genksyms.

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 * However, the modules will use the CRC defined *here*, no matter if it is

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 * good; so the versions of these symbols will always match

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 */

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#define EXPORT_SYMBOL_PROTO(sym)       \

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	int sym(void);                  \

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	EXPORT_SYMBOL(sym);

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extern void readdir64(void) __attribute__((weak));

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EXPORT_SYMBOL(readdir64);

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extern void truncate64(void) __attribute__((weak));

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EXPORT_SYMBOL(truncate64);

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#ifdef SUBARCH_i386

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EXPORT_SYMBOL(vsyscall_ehdr);

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EXPORT_SYMBOL(vsyscall_end);

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#endif

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EXPORT_SYMBOL_PROTO(__errno_location);

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EXPORT_SYMBOL_PROTO(access);

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EXPORT_SYMBOL_PROTO(open);

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EXPORT_SYMBOL_PROTO(open64);

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EXPORT_SYMBOL_PROTO(close);

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EXPORT_SYMBOL_PROTO(read);

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EXPORT_SYMBOL_PROTO(write);

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EXPORT_SYMBOL_PROTO(dup2);

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EXPORT_SYMBOL_PROTO(__xstat);

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EXPORT_SYMBOL_PROTO(__lxstat);

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EXPORT_SYMBOL_PROTO(__lxstat64);

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EXPORT_SYMBOL_PROTO(__fxstat64);

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EXPORT_SYMBOL_PROTO(lseek);

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EXPORT_SYMBOL_PROTO(lseek64);

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EXPORT_SYMBOL_PROTO(chown);

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EXPORT_SYMBOL_PROTO(fchown);

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EXPORT_SYMBOL_PROTO(truncate);

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EXPORT_SYMBOL_PROTO(ftruncate64);

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EXPORT_SYMBOL_PROTO(utime);

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EXPORT_SYMBOL_PROTO(utimes);

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EXPORT_SYMBOL_PROTO(futimes);

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EXPORT_SYMBOL_PROTO(chmod);

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EXPORT_SYMBOL_PROTO(fchmod);

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EXPORT_SYMBOL_PROTO(rename);

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EXPORT_SYMBOL_PROTO(__xmknod);

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EXPORT_SYMBOL_PROTO(symlink);

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EXPORT_SYMBOL_PROTO(link);

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EXPORT_SYMBOL_PROTO(unlink);

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EXPORT_SYMBOL_PROTO(readlink);

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EXPORT_SYMBOL_PROTO(mkdir);

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EXPORT_SYMBOL_PROTO(rmdir);

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EXPORT_SYMBOL_PROTO(opendir);

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EXPORT_SYMBOL_PROTO(readdir);

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EXPORT_SYMBOL_PROTO(closedir);

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EXPORT_SYMBOL_PROTO(seekdir);

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EXPORT_SYMBOL_PROTO(telldir);

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EXPORT_SYMBOL_PROTO(ioctl);

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EXPORT_SYMBOL_PROTO(pread64);

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EXPORT_SYMBOL_PROTO(pwrite64);

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EXPORT_SYMBOL_PROTO(statfs);

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EXPORT_SYMBOL_PROTO(statfs64);

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EXPORT_SYMBOL_PROTO(getuid);

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EXPORT_SYMBOL_PROTO(fsync);

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EXPORT_SYMBOL_PROTO(fdatasync);

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EXPORT_SYMBOL_PROTO(lstat64);

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EXPORT_SYMBOL_PROTO(fstat64);

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EXPORT_SYMBOL_PROTO(mknod);

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/* Export symbols used by GCC for the stack protector. */

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extern void __stack_smash_handler(void *) __attribute__((weak));

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EXPORT_SYMBOL(__stack_smash_handler);

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extern long __guard __attribute__((weak));

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EXPORT_SYMBOL(__guard);

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