kernel: implement eventfs/eventfd

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

@@ -105,6 +105,7 @@ extern syscall_getsockopt
 extern syscall_clock_getres
 extern syscall_setpriority
 extern syscall_sysctl
+extern syscall_eventfd
 syscalltab:
 dq syscall_print
 dq syscall_mmap
@@ -212,7 +213,8 @@ dq syscall_getsockopt
 dq syscall_clock_getres
 dq syscall_setpriority
 dq syscall_sysctl
-syscallcount equ 106
+dq syscall_eventfd
+syscallcount equ 107
 section .text
 global arch_syscall_entry
 ; on entry:

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

@@ -9,7 +9,7 @@
 void arch_interrupt_disable();
 void arch_interrupt_enable();
 
-#define SYSCALL_COUNT 106
+#define SYSCALL_COUNT 107
 #define LOGSTR(x) arch_e9_puts(x)
 
 static char *name[] = {
@@ -119,6 +119,7 @@ static char *name[] = {
 	"clock_getres",
 	"setpriority",
 	"sysctl",
+	"eventfd",
 };
 
 static char *args[] = {
@@ -228,6 +229,7 @@ static char *args[] = {
 	"clockid %d timespec %p", // clock_getres
 	"which %d who %d prio %d", // setpriority
 	"name %p name_len %lu oldp %p old_size %p newp %p new_size %lu", // sysctl
+	"initval %lu flags %x", //eventfd
 };
 
 #endif