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Allow debuginfo to reference global variables

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This commit is contained in:
bjorn3 2024-03-27 15:00:41 +00:00
parent 1f75f0fcad
commit f086e7abaf
5 changed files with 39 additions and 36 deletions
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13
src/debuginfo/object.rs
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@ -1,4 +1,4 @@
use cranelift_module::FuncId;
use cranelift_module::{DataId, FuncId};
use cranelift_object::ObjectProduct;
use gimli::SectionId;
use object::write::{Relocation, StandardSegment};
@ -57,10 +57,13 @@ impl WriteDebugInfo for ObjectProduct {
let (symbol, symbol_offset) = match reloc.name {
DebugRelocName::Section(id) => (section_map.get(&id).unwrap().1, 0),
DebugRelocName::Symbol(id) => {
let symbol_id = self.function_symbol(FuncId::from_u32(id.try_into().unwrap()));
self.object
.symbol_section_and_offset(symbol_id)
.expect("Debug reloc for undef sym???")
let id = id.try_into().unwrap();
let symbol_id = if id & 1 << 31 == 0 {
self.function_symbol(FuncId::from_u32(id))
} else {
self.data_symbol(DataId::from_u32(id & !(1 << 31)))
};
self.object.symbol_section_and_offset(symbol_id).unwrap_or((symbol_id, 0))
}
};
self.object