fix(verify): fix non-amd64 JIT trampolines and validate under qemu

2026-08-31 12:34:50 +02:00
parent a5a59d6503
commit 94c4756d47
10 changed files with 77 additions and 43 deletions
@@ -16,8 +16,9 @@ TEXT ·enterJIT(SB), NOSPLIT, $0-16
 	MOVV R3, savedSP(SB)        // save Go stack pointer (SP)
 	MOVV stack+8(FP), R5        // load prepared stack pointer (A1)
 	MOVV 0(R5), R1              // load leaveJIT address into RA
-	ADDV $8, R5, R5             // advance past return address
-	MOVV R5, R3                 // switch to prepared stack (SP)
+	MOVV R5, R3                 // switch to the prepared stack: SP stays on
+	                            // the leave slot, so the kernel reads its
+	                            // first argument at SP+8
 	JIRL R0, R4, 0              // jump to JIT function

 // func leaveJIT()