ARM64: Add support for ARM64e pointer authentication codes (PAC).

Contributed by Peter Cawley. #559

1 files changed, 3 insertions, 0 deletions

diff --git a/src/lj_jit.h b/src/lj_jit.h
index 7f081730..0fae60ad 100644
--- a/src/lj_jit.h
+++ b/src/lj_jit.h
@@ -273,6 +273,9 @@ typedef struct GCtrace {
   BCIns startins;       /* Original bytecode of starting instruction. */
   MSize szmcode;        /* Size of machine code. */
   MCode *mcode;         /* Start of machine code. */
+#if LJ_ABI_PAUTH
+  ASMFunction mcauth;   /* Start of machine code, with ptr auth applied. */
+#endif
   MSize mcloop;         /* Offset of loop start in machine code. */
   uint16_t nchild;      /* Number of child traces (root trace only). */
   uint16_t spadjust;    /* Stack pointer adjustment (offset in bytes). */