wasmerio/wasmer · error

dwarf relocation size not yet supported: {}

Error message

dwarf relocation size not yet supported: {}

What it means

Error "dwarf relocation size not yet supported: {}" thrown in wasmerio/wasmer.

Source

Thrown at lib/compiler-cranelift/src/dwarf.rs:88

    }

    fn write_at(&mut self, offset: usize, bytes: &[u8]) -> Result<()> {
        self.writer.write_at(offset, bytes)
    }

    fn write_address(&mut self, address: Address, size: u8) -> Result<()> {
        match address {
            Address::Constant(val) => self.write_udata(val, size),
            Address::Symbol { symbol, addend } => {
                // Is a function relocation
                if symbol == Self::FUNCTION_SYMBOL {
                    // We use the addend to detect the function index
                    let function_index = LocalFunctionIndex::new(addend as _);
                    let reloc_target = RelocationTarget::LocalFunc(function_index);
                    let offset = self.len() as u32;
                    let kind = match size {
                        8 => RelocationKind::Abs8,
                        _ => unimplemented!("dwarf relocation size not yet supported: {}", size),
                    };
                    let addend = 0;
                    self.relocs.push(Relocation {
                        kind,
                        reloc_target,
                        offset,
                        addend,
                    });
                    self.write_udata(addend as _, size)
                } else if symbol == Self::PERSONALITY_SYMBOL {
                    let offset = self.len() as u32;
                    let kind = match size {
                        4 => RelocationKind::Abs4,
                        8 => RelocationKind::Abs8,
                        other => unimplemented!(
                            "dwarf relocation size for personality not supported: {}",
                            other
                        ),

View on GitHub (pinned to 8c4b9ee9d3)

When it happens

Trigger: Thrown at lib/compiler-cranelift/src/dwarf.rs:88 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of wasmerio/wasmer@8c4b9ee9d3 (2026-09-01). Data as JSON: /api/errors/687f280494a62210. Report an issue: GitHub.