Changeset 106784 in vbox for trunk/src/VBox/VMM/VMMR3

Timestamp:

Oct 30, 2024 10:07:21 AM (3 months ago)

Author:

vboxsync

Message:

VMM/ARM: On ARM relative branch targets start always from the beginning of the current instruction while on x86 it always starts from the beginning of the following instruction, fixes control flow graph generation for ARMv8 guests, bugref:10393

File:

• trunk/src/VBox/VMM/VMMR3/DBGFR3Flow.cpp (modified) (1 diff)

trunk/src/VBox/VMM/VMMR3/DBGFR3Flow.cpp

@@ -780 +780 @@
     /* Relative jumps are always from the beginning of the next instruction. */
     *pAddrJmpTarget = *pAddrInstr;
+#ifdef VBOX_VMM_TARGET_ARMV8
+    /* On ARM relative jumps are always from the beginning of the curent instruction (b #0 will jump to itself for instance). */
+    RT_NOREF(cbInstr);
+#else
     DBGFR3AddrAdd(pAddrJmpTarget, cbInstr);
+#endif
 
     if (fRelJmp)