Stream: git-wasmtime

Topic: wasmtime / issue #8255 Bad relocation type generated

Wasmtime GitHub notifications bot (Mar 28 2024 at 08:06):

Wang-Zhongqi added the bug label to Issue #8255.

Wasmtime GitHub notifications bot (Mar 28 2024 at 08:06):

Wang-Zhongqi opened issue #8255:

Test Case

(module
  (func (export "ceil") (param $x f32) (result f32) (f32.ceil (local.get $x)))
  (func (export "floor") (param $x f32) (result f32) (f32.floor (local.get $x)))
  (func (export "trunc") (param $x f32) (result f32) (f32.trunc (local.get $x)))
  (func (export "nearest") (param $x f32) (result f32) (f32.nearest (local.get $x)))
)

Steps to Reproduce

• TODO: first, disable sse support
• TODO: second, wasmtime compile -Ccache=n -o test.cwasm test.wasm
• TODO: objdump -r test.cwasm

Expected Results

The expected relocation type is R_X86_64_64, indicating a 64-bit absolute relocation.

Actual Results

The actual relocation type is 8-bit.

Versions and Environment

Wasmtime version or commit: 16.0

Operating system: ubuntu 20.04

Architecture: X86_64

Extra Info

This could be 64, not 8.

Wasmtime GitHub notifications bot (Mar 28 2024 at 15:04):

alexcrichton commented on issue #8255:

Yeah looks like a bug, thanks! Would you be up for sending a PR to update that constant? I believe an update will be required here as well.

Wasmtime GitHub notifications bot (Mar 29 2024 at 15:01):

alexcrichton closed issue #8255:

Test Case

(module
  (func (export "ceil") (param $x f32) (result f32) (f32.ceil (local.get $x)))
  (func (export "floor") (param $x f32) (result f32) (f32.floor (local.get $x)))
  (func (export "trunc") (param $x f32) (result f32) (f32.trunc (local.get $x)))
  (func (export "nearest") (param $x f32) (result f32) (f32.nearest (local.get $x)))
)

Steps to Reproduce

• TODO: first, disable sse support
• TODO: second, wasmtime compile -Ccache=n -o test.cwasm test.wasm
• TODO: objdump -r test.cwasm

Expected Results

The expected relocation type is R_X86_64_64, indicating a 64-bit absolute relocation.

Actual Results

The actual relocation type is 8-bit.

Versions and Environment

Wasmtime version or commit: 16.0

Operating system: ubuntu 20.04

Architecture: X86_64

Extra Info

This could be 64, not 8.

Last updated: Apr 17 2025 at 12:05 UTC