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Enable back-edge CFI by default on macOS (#4720)

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Also, adjust the tests that are executed on that platform. Finally,
fix a bug with obtaining backtraces when back-edge CFI is enabled.

Copyright (c) 2022, Arm Limited.
This commit is contained in:
Anton Kirilov
2022-08-17 21:06:20 +01:00
committed by GitHub
parent 57dca934ad
commit 1481721c9d
9 changed files with 58 additions and 23 deletions
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13
cranelift/codegen/src/isa/aarch64/inst/mod.rs
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@@ -981,12 +981,7 @@ fn aarch64_get_operands<F: Fn(VReg) -> VReg>(inst: &Inst, collector: &mut Operan
collector.reg_def(rd);
collector.reg_use(rn);
}
&Inst::Ret { ref rets } => {
for &ret in rets {
collector.reg_use(ret);
}
}
&Inst::AuthenticatedRet { ref rets, .. } => {
&Inst::Ret { ref rets } | &Inst::AuthenticatedRet { ref rets, .. } => {
for &ret in rets {
collector.reg_use(ret);
}
@@ -1039,7 +1034,10 @@ fn aarch64_get_operands<F: Fn(VReg) -> VReg>(inst: &Inst, collector: &mut Operan
collector.reg_def(rd);
memarg_operands(mem, collector);
}
&Inst::Pacisp { .. } => {}
&Inst::Pacisp { .. } | &Inst::Xpaclri => {
// Neither LR nor SP is an allocatable register, so there is no need
// to do anything.
}
&Inst::VirtualSPOffsetAdj { .. } => {}
&Inst::ElfTlsGetAddr { .. } => {
@@ -2715,6 +2713,7 @@ impl Inst {
"paci".to_string() + key + "sp"
}
&Inst::Xpaclri => "xpaclri".to_string(),
&Inst::VirtualSPOffsetAdj { offset } => {
state.virtual_sp_offset += offset;
format!("virtual_sp_offset_adjust {}", offset)