fix(verify): gate JIT verification to amd64 until trampolines are hardened

2026-08-30 22:48:48 +02:00
parent 9cb1666b35
commit a5a59d6503
15 changed files with 206 additions and 30 deletions
@@ -33,6 +33,7 @@ TEXT ·enterJITChecked(SB), NOSPLIT, $0-16
 	MOV  fn+0(FP), X5          // target function address (T0)
 	MOV  X1, savedRA(SB)       // save return address
 	MOV  X2, savedSP(SB)       // save Go stack pointer
+	MOV  g, savedG(SB)         // save g
 	MOV  $SENTINEL_G, g        // sentinel in g
 	MOV  stack+8(FP), X6       // load prepared stack pointer (T1)
 	LD   0(X6), X1             // load leaveJITCheckedRaw into RA
@@ -58,4 +59,8 @@ g_ok:
 	MOV  savedSP(SB), X6       // restore Go stack pointer
 	MOV  X6, X2
 	MOV  savedRA(SB), X1       // restore return address
+	MOV  savedG(SB), g         // restore g: Go code needs it the moment it
+	                           // resumes, violation or not
 	JALR X0, 0(X1)             // return to Go caller
+
+GLOBL savedG(SB), NOPTR, $8