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
 	MOVV fn+0(FP), R4           // target function address (A0)
 	MOVV R1, savedRA(SB)        // save return address (RA)
 	MOVV R3, savedSP(SB)        // save Go stack pointer (SP)
+	MOVV g, savedG(SB)          // save g
 	MOVV $SENTINEL_G, g         // sentinel in g
 	MOVV stack+8(FP), R5        // load prepared stack pointer (A1)
 	MOVV 0(R5), R1              // load leaveJITCheckedRaw into RA
@@ -58,4 +59,8 @@ g_ok:
 	MOVV savedSP(SB), R5        // restore Go stack pointer
 	MOVV R5, R3
 	MOVV savedRA(SB), R1        // restore return address
+	MOVV savedG(SB), g          // restore g: Go code needs it the moment it
+	                            // resumes, violation or not
 	JIRL R0, R1, 0              // return to Go caller
+
+GLOBL savedG(SB), NOPTR, $8