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Add support for relocations to other functions defined in the same module.

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This commit is contained in:
Nick Lewycky
2020-05-05 11:45:59 -07:00
parent 85f7c4e9ab
commit 7465430868
1 changed files with 16 additions and 4 deletions
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20
lib/compiler-llvm/src/translator/code.rs
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@ -378,11 +378,23 @@ impl FuncTranslator {
} else if target.st_type() == goblin::elf::sym::STT_NOTYPE
&& target.st_shndx == goblin::elf::section_header::SHN_UNDEF as _
{
// Not defined in this .o file implies that it should
// be a libcall.
// Not defined in this .o file. Maybe another local function?
let name = target.st_name;
let name = elf.strtab.get(name).unwrap().unwrap();
if let Some(libcall) = libcalls.get(name) {
if let Some((index, _)) =
func_names.iter().find(|(_, func_name)| *func_name == name)
{
let local_index = wasm_module
.local_func_index(index)
.expect("Relocation to non-local function");
relocations.push(Relocation {
kind,
reloc_target: RelocationTarget::LocalFunc(local_index),
offset,
addend,
});
// Maybe a libcall then?
} else if let Some(libcall) = libcalls.get(name) {
relocations.push(Relocation {
kind,
reloc_target: RelocationTarget::LibCall(*libcall),
@ -390,7 +402,7 @@ impl FuncTranslator {
addend,
});
} else {
unimplemented!("reference to unknown libcall {}", name);
unimplemented!("reference to unknown symbol {}", name);
}
} else {
unimplemented!("unknown relocation {:?} with target {:?}", reloc, target);