| 38 | } |
| 39 | |
| 40 | fn elf_detect_arm_version(file: &object::File) -> Result<Option<unarm::Version>> { |
| 41 | // Check ARM attributes |
| 42 | if let Some(arm_attrs) = file.sections().find(|s| { |
| 43 | s.kind() == object::SectionKind::Elf(elf::SHT_ARM_ATTRIBUTES) |
| 44 | && s.name() == Ok(".ARM.attributes") |
| 45 | }) { |
| 46 | let attr_data = arm_attrs.uncompressed_data()?; |
| 47 | let build_attrs = BuildAttrs::new(&attr_data, match file.endianness() { |
| 48 | object::Endianness::Little => arm_attr::Endian::Little, |
| 49 | object::Endianness::Big => arm_attr::Endian::Big, |
| 50 | })?; |
| 51 | for subsection in build_attrs.subsections() { |
| 52 | let subsection = subsection?; |
| 53 | if !subsection.is_aeabi() { |
| 54 | continue; |
| 55 | } |
| 56 | // Only checking first CpuArch tag. Others may exist, but that's very unlikely. |
| 57 | let cpu_arch = subsection.into_public_tag_iter()?.find_map(|(_, tag)| { |
| 58 | if let Tag::CpuArch(cpu_arch) = tag { Some(cpu_arch) } else { None } |
| 59 | }); |
| 60 | match cpu_arch { |
| 61 | Some(CpuArch::V4) => return Ok(Some(unarm::Version::V4)), |
| 62 | Some(CpuArch::V4T) => return Ok(Some(unarm::Version::V4T)), |
| 63 | Some(CpuArch::V5TE) => return Ok(Some(unarm::Version::V5Te)), |
| 64 | Some(CpuArch::V5TEJ) => return Ok(Some(unarm::Version::V5Tej)), |
| 65 | Some(CpuArch::V6) => return Ok(Some(unarm::Version::V6)), |
| 66 | Some(CpuArch::V6K) => return Ok(Some(unarm::Version::V6K)), |
| 67 | Some(arch) => bail!("ARM arch {} not supported", arch), |
| 68 | None => {} |
| 69 | }; |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | Ok(None) |
| 74 | } |
| 75 | |
| 76 | fn get_mapping_symbols( |
| 77 | sections: &[Section], |