syscalls: mkdirat and gethostname + uname stubs in mlibc

kernel-src/arch/x86-64/syscall.asm

@@ -26,6 +26,7 @@ extern syscall_isatty
 extern syscall_faccessat
 extern syscall_unlinkat
 extern syscall_ioctl
+extern syscall_mkdirat
 syscalltab:
 dq syscall_print
 dq syscall_mmap
@@ -54,7 +55,8 @@ dq syscall_isatty
 dq syscall_faccessat
 dq syscall_unlinkat
 dq syscall_ioctl
-syscallcount equ 27
+dq syscall_mkdirat
+syscallcount equ 28
 section .text
 global arch_syscall_entry
 ; on entry:

kernel-src/arch/x86-64/syscalllog.c

@@ -4,7 +4,7 @@
 
 #ifdef SYSCALL_LOGGING
 
-#define SYSCALL_COUNT 25
+#define SYSCALL_COUNT 28
 #define LOGSTR(x) arch_e9_puts(x)
 
 static char *name[] = {
@@ -33,7 +33,9 @@ static char *name[] = {
 	"pipe2",
 	"isatty",
 	"faccessat",
-	"unlinkat"
+	"unlinkat",
+	"ioctl",
+	"mkdirat"
 };
 
 static char *args[] = {
@@ -62,7 +64,9 @@ static char *args[] = {
 	"flags %d", // pipe2
 	"fd %d", // isatty
 	"dirfd %d pathname %s mode %d flags %d", // faccessat
-	"dirfd %d pathname %d flags %d" // unlinkat
+	"dirfd %d pathname %d flags %d", // unlinkat
+	"fd %d request %lu argument %d", // ioctl
+	"dirfd %d path %s mode %o" // mkdirat
 };
 
 #endif