*: use a generic UserRegs type everywhere I'm storing registers

mostly inspired by Plan 9's Ureg, probably obvious from the name

1 files changed, 6 insertions, 5 deletions

diff --git a/src/libk/include/camellia/types.h b/src/libk/include/camellia/types.h
index 6fee578..0790db3 100644
--- a/src/libk/include/camellia/types.h
+++ b/src/libk/include/camellia/types.h
@@ -32,15 +32,16 @@ struct ufs_request {
 	int flags;
 };
 
-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) */
+typedef struct UserRegs UserRegs;
+struct UserRegs {
 	uint64_t r15, r14, r13, r12, r11, r10, r9,  r8;
 	uint64_t rdi, rsi, rbp, rsp, rbx, rdx, rcx, rax;
 	uint64_t rip, flags;
+};
+_Static_assert(sizeof(UserRegs) == 8 * 18); /* for asm */
 
+struct intr_data {
+	UserRegs reg;
 	char msg[]; /* variable size, NUL terminated */
 };