kernel: implement _sys_intr_return

2 files changed, 5 insertions, 3 deletions

diff --git a/src/libk/include/camellia/syscalls.h b/src/libk/include/camellia/syscalls.h
index 16576e0..628a511 100644
--- a/src/libk/include/camellia/syscalls.h
+++ b/src/libk/include/camellia/syscalls.h
@@ -24,6 +24,7 @@
 #define _SYS_TIME 23
 #define _SYS_GETNULL 24
 #define _SYS_DUPLEX 25
+#define _SYS_INTR_RETURN 26
 
 #define _SYS_EXECBUF 100
 #define _SYS_DEBUG_KLOG 101
@@ -92,6 +93,8 @@ hid_t _sys_getnull(int flags);
 
 long _sys_duplex(hid_t from, hid_t to, int flags);
 
+void _sys_intr_return(struct intr_data __user *intr, int flags);
+
 /* see shared/execbuf.h */
 long _sys_execbuf(void __user *buf, size_t len);
 
diff --git a/src/libk/include/camellia/types.h b/src/libk/include/camellia/types.h
index 9cbd386..86ffb56 100644
--- a/src/libk/include/camellia/types.h
+++ b/src/libk/include/camellia/types.h
@@ -36,12 +36,11 @@ struct intr_data {
 	/* same order as CpuRegs.
 	 * notable omissions:
 	 * - SSE registers (usually there's no need to save them, userland can do
-	 *                  that itself if it wants)
-	 * - FLAGS (so the kernel doesn't need to care about sanitizing it) */
+	 *                  that itself if it wants) */
 	uint64_t r15, r14, r13, r12, r11, r10, r9, r8;
 	uint64_t rdi, rsi;
 	userptr_t rbp, rsp;
-	uint64_t rbx, rdx, rcx, rax, rip;
+	uint64_t rbx, rdx, rcx, rax, rip, flags;
 
 	char msg[]; /* variable size, NUL terminated */
 };