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Cherry-picked fix

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This commit is contained in:
Brandon Fish 2019-01-23 00:31:58 -06:00 committed by Syrus
parent 59ce7ea54b
commit 65872a1be4
2 changed files with 11 additions and 3 deletions
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5
lib/clif-backend/src/module.rs
View File

@ -92,8 +92,9 @@ impl Module {
func_assoc.iter_mut().for_each(|(_, sig_index)| {
*sig_index = sig_registry.lookup_deduplicated_sigindex(*sig_index);
});
let (func_resolver_builder, handler_data) = FuncResolverBuilder::new(isa, functions)?;
let imported_functions_len = self.module.imported_functions.len();
let (func_resolver_builder, handler_data) =
FuncResolverBuilder::new(isa, functions, imported_functions_len)?;
self.module.func_resolver = Box::new(func_resolver_builder.finalize()?);
let trampolines = Trampolines::new(isa, &self.module);

9
lib/clif-backend/src/resolver.rs
View File

@ -14,7 +14,7 @@ use wasmer_runtime_core::{
sys::{Memory, Protect},
},
error::{CompileError, CompileResult},
structures::Map,
structures::{Map, TypedIndex},
types::LocalFuncIndex,
vm, vmcalls,
};
@ -23,12 +23,14 @@ use wasmer_runtime_core::{
pub struct FuncResolverBuilder {
resolver: FuncResolver,
relocations: Map<LocalFuncIndex, Vec<Relocation>>,
import_len: usize,
}
impl FuncResolverBuilder {
pub fn new(
isa: &isa::TargetIsa,
function_bodies: Map<LocalFuncIndex, ir::Function>,
import_len: usize,
) -> CompileResult<(Self, HandlerData)> {
let mut compiled_functions: Vec<Vec<u8>> = Vec::with_capacity(function_bodies.len());
let mut relocations = Map::with_capacity(function_bodies.len());
@ -100,6 +102,7 @@ impl FuncResolverBuilder {
Self {
resolver: FuncResolver { map, memory },
relocations,
import_len,
},
handler_data,
))
@ -113,6 +116,10 @@ impl FuncResolverBuilder {
// This will always be an internal function
// because imported functions are not
// called in this way.
// Adjust from wasm-wide function index to index of locally-defined functions only.
let local_func_index =
LocalFuncIndex::new(local_func_index.index() - self.import_len);
self.resolver.lookup(local_func_index).unwrap().as_ptr() as isize
}
RelocationType::LibCall(libcall) => match libcall {