execve():

- COKERNEL_PATH and COKERNEL_EXEC_ROOT support for co-kernels with different architecture than the host (i.e., Xeon Phi).
- fix various error codes: ENAMETOOLONG, ENOENT, ENOTDIR, EACCES, ENOEXEC, EFAULT.
- support for shell code execution.

lib/include/string.h

@@ -28,6 +28,6 @@ int memcmp(const void *s1, const void *s2, size_t n);
 void *memset(void *s, int n, size_t l);
 
 unsigned long strtol(const char *cp, char **endp, unsigned int base);
-int flatten_strings(int nr_strings, char **strings, char **flat);
+int flatten_strings(int nr_strings, char *first, char **strings, char **flat);
 
 #endif