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Add TLS support for ELF and MachO (#1174)

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* Add TLS support
* Add binemit and legalize tests
* Spill all caller-saved registers when necessary
This commit is contained in:
bjorn3
2020-02-26 02:50:04 +01:00
committed by GitHub
parent 0a11736fbf
commit 0a1bb3ba6c
27 changed files with 354 additions and 19 deletions
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17
cranelift/codegen/src/legalizer/globalvalue.rs
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@@ -40,7 +40,7 @@ pub fn expand_global_value(
global_type,
readonly,
} => load_addr(inst, func, base, offset, global_type, readonly, isa),
ir::GlobalValueData::Symbol { .. } => symbol(inst, func, gv, isa),
ir::GlobalValueData::Symbol { tls, .. } => symbol(inst, func, gv, isa, tls),
}
}
@@ -123,7 +123,18 @@ fn load_addr(
}
/// Expand a `global_value` instruction for a symbolic name global.
fn symbol(inst: ir::Inst, func: &mut ir::Function, gv: ir::GlobalValue, isa: &dyn TargetIsa) {
fn symbol(
inst: ir::Inst,
func: &mut ir::Function,
gv: ir::GlobalValue,
isa: &dyn TargetIsa,
tls: bool,
) {
let ptr_ty = isa.pointer_type();
func.dfg.replace(inst).symbol_value(ptr_ty, gv);
if tls {
func.dfg.replace(inst).tls_value(ptr_ty, gv);
} else {
func.dfg.replace(inst).symbol_value(ptr_ty, gv);
}
}