================
@@ -1066,9 +1079,13 @@ void AArch64BtiPac::writePlt(uint8_t *buf, const Symbol
&sym,
0x11, 0x02, 0x40, 0xf9, // ldr x17, [x16, Offset(&(.got.plt[n]))]
0x10, 0x02, 0x00, 0x91 // add x16, x16, Offset(&(.got.plt[n]))
};
+ const uint8_t pacHintBr[] = {
+ 0x9f, 0x21, 0x03, 0xd5, // autia1716
+ 0x20, 0x02, 0x1f, 0xd6 // br x17
+ };
const uint8_t pacBr[] = {
- 0x9f, 0x21, 0x03, 0xd5, // autia1716
- 0x20, 0x02, 0x1f, 0xd6 // br x17
+ 0x30, 0x0a, 0x1f, 0xd7, // braa x17, x16
+ 0x1f, 0x20, 0x03, 0xd5 // nop
----------------
DanielKristofKiss wrote:
maybe UDF instruction is a safer choice instead of NOP. also may not have any
significance.
https://github.com/llvm/llvm-project/pull/113945
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