comm-central/third_party/rust/minidump-writer/src/linux/module_reader.rs

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use crate::errors::ModuleReaderError as Error;
use crate::mem_reader::MemReader;
use crate::minidump_format::GUID;
use goblin::{
container::{Container, Ctx, Endian},
elf,
};
use std::{borrow::Cow, ffi::CStr};
type Buf<'buf> = Cow<'buf, [u8]>;
const NOTE_SECTION_NAME: &[u8] = b".note.gnu.build-id\0";
pub struct ProcessReader {
inner: MemReader,
start_address: u64,
}
impl ProcessReader {
pub fn new(pid: i32, start_address: usize) -> Self {
Self {
inner: MemReader::new(pid),
start_address: start_address as u64,
}
}
}
pub enum ProcessMemory<'buf> {
Slice(&'buf [u8]),
Process(ProcessReader),
}
impl<'buf> From<&'buf [u8]> for ProcessMemory<'buf> {
fn from(value: &'buf [u8]) -> Self {
Self::Slice(value)
}
}
impl<'buf> From<ProcessReader> for ProcessMemory<'buf> {
fn from(value: ProcessReader) -> Self {
Self::Process(value)
}
}
impl<'buf> ProcessMemory<'buf> {
#[inline]
fn read(&mut self, offset: u64, length: u64) -> Result<Buf<'buf>, Error> {
let error = move |start_address, error| Error::ReadModuleMemory {
start_address,
offset,
length,
error,
};
match self {
Self::Process(pr) => {
let error = |e| error(Some(pr.start_address), e);
let len = std::num::NonZeroUsize::new(length as usize)
.ok_or_else(|| error(nix::Error::EINVAL))?;
let proc_offset = pr
.start_address
.checked_add(offset)
.ok_or_else(|| error(nix::Error::EOVERFLOW))?;
pr.inner
.read_to_vec(proc_offset as _, len)
.map(Cow::Owned)
.map_err(|err| error(err.source))
}
Self::Slice(s) => {
let error = |e| error(None, e);
let end = offset
.checked_add(length)
.ok_or_else(|| error(nix::Error::EOVERFLOW))?;
s.get(offset as usize..end as usize)
.map(Cow::Borrowed)
.ok_or_else(|| error(nix::Error::EACCES))
}
}
}
/// Calculates the absolute address of the specified relative address
#[inline]
fn absolute(&self, addr: u64) -> u64 {
let Self::Process(pr) = self else {
return addr;
};
addr.checked_sub(pr.start_address).unwrap_or(addr)
}
#[inline]
fn is_process_memory(&self) -> bool {
matches!(self, Self::Process(_))
}
}
#[inline]
fn is_executable_section(header: &elf::SectionHeader) -> bool {
header.sh_type == elf::section_header::SHT_PROGBITS
&& header.sh_flags & u64::from(elf::section_header::SHF_ALLOC) != 0
&& header.sh_flags & u64::from(elf::section_header::SHF_EXECINSTR) != 0
}
/// Return bytes to use as a build id, computed by hashing the given data.
///
/// This provides `size_of::<GUID>` bytes to keep identifiers produced by this function compatible
/// with other build ids.
fn build_id_from_bytes(data: &[u8]) -> Vec<u8> {
// Only provide mem::size_of(MDGUID) bytes to keep identifiers produced by this
// function backwards-compatible.
data.chunks(std::mem::size_of::<GUID>()).fold(
vec![0u8; std::mem::size_of::<GUID>()],
|mut bytes, chunk| {
bytes
.iter_mut()
.zip(chunk.iter())
.for_each(|(b, c)| *b ^= *c);
bytes
},
)
}
// `name` should be null-terminated
fn section_header_with_name<'sc>(
section_headers: &'sc elf::SectionHeaders,
strtab_index: usize,
name: &[u8],
module_memory: &mut ProcessMemory<'_>,
) -> Result<Option<&'sc elf::SectionHeader>, Error> {
let strtab_section_header = section_headers
.get(strtab_index)
.and_then(|hdr| (hdr.sh_type == elf::section_header::SHT_STRTAB).then_some(hdr))
.ok_or(Error::NoStrTab)?;
for header in section_headers {
let sh_name = header.sh_name as u64;
if sh_name >= strtab_section_header.sh_size {
log::warn!("invalid sh_name offset for {:?}", name);
continue;
}
if sh_name + name.len() as u64 >= strtab_section_header.sh_size {
// This can't be a match.
continue;
}
let n = module_memory.read(strtab_section_header.sh_offset + sh_name, name.len() as u64)?;
if name == &*n {
return Ok(Some(header));
}
}
Ok(None)
}
/// Types which can be read from ProcessMemory.
pub trait ReadFromModule: Sized {
fn read_from_module(module_memory: ProcessMemory<'_>) -> Result<Self, Error>;
fn read_from_file(path: &std::path::Path) -> Result<Self, Error> {
let map = std::fs::File::open(path)
// Safety: the file is an executable binary (very likely read-only), and won't be changed.
.and_then(|file| unsafe { memmap2::Mmap::map(&file) })
.map_err(|error| Error::MapFile {
path: path.to_owned(),
error,
})?;
Self::read_from_module(ProcessMemory::Slice(&map))
}
}
/// The module build id.
pub struct BuildId(pub Vec<u8>);
impl ReadFromModule for BuildId {
fn read_from_module(module_memory: ProcessMemory<'_>) -> Result<Self, Error> {
let mut reader = ModuleReader::new(module_memory)?;
let program_headers = match reader.build_id_from_program_headers() {
Ok(v) => return Ok(BuildId(v)),
Err(e) => Box::new(e),
};
let section = match reader.build_id_from_section() {
Ok(v) => return Ok(BuildId(v)),
Err(e) => Box::new(e),
};
let generated = match reader.build_id_generate_from_text() {
Ok(v) => return Ok(BuildId(v)),
Err(e) => Box::new(e),
};
Err(Error::NoBuildId {
program_headers,
section,
generated,
})
}
}
struct DynIter<'a> {
data: &'a [u8],
offset: usize,
ctx: Ctx,
}
impl<'a> DynIter<'a> {
pub fn new(data: &'a [u8], ctx: Ctx) -> Self {
DynIter {
data,
offset: 0,
ctx,
}
}
}
impl<'a> Iterator for DynIter<'a> {
type Item = Result<elf::dynamic::Dyn, Error>;
fn next(&mut self) -> Option<Self::Item> {
use scroll::Pread;
let dyn_: elf::dynamic::Dyn = match self.data.gread_with(&mut self.offset, self.ctx) {
Ok(v) => v,
Err(e) => return Some(Err(e.into())),
};
if dyn_.d_tag == elf::dynamic::DT_NULL {
None
} else {
Some(Ok(dyn_))
}
}
}
/// The module SONAME.
#[derive(Default, Clone, Debug)]
pub struct SoName(pub String);
impl ReadFromModule for SoName {
fn read_from_module(module_memory: ProcessMemory<'_>) -> Result<Self, Error> {
let mut reader = ModuleReader::new(module_memory)?;
let program_headers = match reader.soname_from_program_headers() {
Ok(v) => return Ok(SoName(v)),
Err(e) => Box::new(e),
};
let section = match reader.soname_from_sections() {
Ok(v) => return Ok(SoName(v)),
Err(e) => Box::new(e),
};
Err(Error::NoSoName {
program_headers,
section,
})
}
}
pub struct ModuleReader<'buf> {
module_memory: ProcessMemory<'buf>,
header: elf::Header,
context: Ctx,
}
impl<'buf> ModuleReader<'buf> {
pub fn new(mut module_memory: ProcessMemory<'buf>) -> Result<Self, Error> {
// We could use `Ctx::default()` (which defaults to the native system), however to be extra
// permissive we'll just use a 64-bit ("Big") context which would result in the largest
// possible header size.
let header_size = elf::Header::size(Ctx::new(Container::Big, Endian::default()));
let header_data = module_memory.read(0, header_size as u64)?;
let header = elf::Elf::parse_header(&header_data)?;
let context = Ctx::new(header.container()?, header.endianness()?);
Ok(Self {
module_memory,
header,
context,
})
}
/// Read the SONAME using program headers to locate dynamic library information.
pub fn soname_from_program_headers(&mut self) -> Result<String, Error> {
let program_headers = self.read_program_headers()?;
let dynamic_segment_header = program_headers
.iter()
.find(|h| h.p_type == elf::program_header::PT_DYNAMIC)
.ok_or(Error::NoDynamicSection)?;
let dynamic_section = self.read_segment(dynamic_segment_header)?;
let mut soname_strtab_offset = None;
let mut strtab_addr = None;
let mut strtab_size = None;
for dyn_ in DynIter::new(&dynamic_section, self.context) {
let dyn_ = dyn_?;
match dyn_.d_tag {
elf::dynamic::DT_SONAME => soname_strtab_offset = Some(dyn_.d_val),
elf::dynamic::DT_STRTAB => strtab_addr = Some(dyn_.d_val),
elf::dynamic::DT_STRSZ => strtab_size = Some(dyn_.d_val),
_ => (),
}
}
match (strtab_addr, strtab_size, soname_strtab_offset) {
(None, _, _) | (_, None, _) => Err(Error::NoDynStrSection),
(_, _, None) => Err(Error::NoSoNameEntry),
(Some(addr), Some(size), Some(offset)) => {
// If loaded in memory, the address will be altered to be absolute.
if offset < size {
self.read_name_from_strtab(self.module_memory.absolute(addr), size, offset)
} else {
log::warn!("soname strtab offset ({offset}) exceeds strtab size ({size})");
Err(Error::NoSoNameEntry)
}
}
}
}
/// Read the SONAME using section headers to locate dynamic library information.
pub fn soname_from_sections(&mut self) -> Result<String, Error> {
let section_headers = self.read_section_headers()?;
let dynamic_section_header = section_headers
.iter()
.find(|h| h.sh_type == elf::section_header::SHT_DYNAMIC)
.ok_or(Error::NoDynamicSection)?;
let dynstr_section_header =
match section_headers.get(dynamic_section_header.sh_link as usize) {
Some(header) if header.sh_type == elf::section_header::SHT_STRTAB => header,
_ => section_header_with_name(
&section_headers,
self.header.e_shstrndx as usize,
b".dynstr\0",
&mut self.module_memory,
)?
.ok_or(Error::NoDynStrSection)?,
};
let dynamic_section = self.module_memory.read(
self.section_offset(dynamic_section_header),
dynamic_section_header.sh_size,
)?;
for dyn_ in DynIter::new(&dynamic_section, self.context) {
let dyn_ = dyn_?;
if dyn_.d_tag == elf::dynamic::DT_SONAME {
let name_offset = dyn_.d_val;
if name_offset < dynstr_section_header.sh_size {
return self.read_name_from_strtab(
self.section_offset(dynstr_section_header),
dynstr_section_header.sh_size,
name_offset,
);
} else {
log::warn!(
"soname offset ({name_offset}) exceeds dynstr section size ({})",
dynstr_section_header.sh_size
);
}
}
}
Err(Error::NoSoNameEntry)
}
/// Read the build id from a program header note.
pub fn build_id_from_program_headers(&mut self) -> Result<Vec<u8>, Error> {
let program_headers = self.read_program_headers()?;
for header in program_headers {
if header.p_type != elf::program_header::PT_NOTE {
continue;
}
if let Ok(Some(result)) =
self.find_build_id_note(header.p_offset, header.p_filesz, header.p_align)
{
return Ok(result);
}
}
Err(Error::NoProgramHeaderNote)
}
/// Read the build id from a notes section.
pub fn build_id_from_section(&mut self) -> Result<Vec<u8>, Error> {
let section_headers = self.read_section_headers()?;
let header = section_header_with_name(
&section_headers,
self.header.e_shstrndx as usize,
NOTE_SECTION_NAME,
&mut self.module_memory,
)?
.ok_or(Error::NoSectionNote)?;
match self.find_build_id_note(header.sh_offset, header.sh_size, header.sh_addralign) {
Ok(Some(v)) => Ok(v),
Ok(None) => Err(Error::NoSectionNote),
Err(e) => Err(e),
}
}
/// Generate a build id by hashing the first page of the text section.
pub fn build_id_generate_from_text(&mut self) -> Result<Vec<u8>, Error> {
let Some(text_header) = self
.read_section_headers()?
.into_iter()
.find(is_executable_section)
else {
return Err(Error::NoTextSection);
};
// Take at most one page of the text section (we assume page size is 4096 bytes).
let len = std::cmp::min(4096, text_header.sh_size);
let text_data = self.module_memory.read(text_header.sh_offset, len)?;
Ok(build_id_from_bytes(&text_data))
}
fn read_segment(&mut self, header: &elf::ProgramHeader) -> Result<Buf<'buf>, Error> {
let (offset, size) = if self.module_memory.is_process_memory() {
(header.p_vaddr, header.p_memsz)
} else {
(header.p_offset, header.p_filesz)
};
self.module_memory.read(offset, size)
}
fn read_name_from_strtab(
&mut self,
strtab_offset: u64,
strtab_size: u64,
name_offset: u64,
) -> Result<String, Error> {
assert!(name_offset < strtab_size);
let name = self
.module_memory
.read(strtab_offset + name_offset, strtab_size - name_offset)?;
return CStr::from_bytes_until_nul(&name)
.map(|s| s.to_string_lossy().into_owned())
.map_err(|_| Error::StrTabNoNulByte);
}
fn section_offset(&self, header: &elf::SectionHeader) -> u64 {
if self.module_memory.is_process_memory() {
header.sh_addr
} else {
header.sh_offset
}
}
fn read_program_headers(&mut self) -> Result<elf::ProgramHeaders, Error> {
if self.header.e_phoff == 0 {
return Err(Error::NoProgramHeaders);
}
let program_headers_data = self.module_memory.read(
self.header.e_phoff,
self.header.e_phentsize as u64 * self.header.e_phnum as u64,
)?;
let program_headers = elf::ProgramHeader::parse(
&program_headers_data,
0,
self.header.e_phnum as usize,
self.context,
)?;
Ok(program_headers)
}
fn read_section_headers(&mut self) -> Result<elf::SectionHeaders, Error> {
if self.header.e_shoff == 0 {
return Err(Error::NoSections);
}
let section_headers_data = self.module_memory.read(
self.header.e_shoff,
self.header.e_shentsize as u64 * self.header.e_shnum as u64,
)?;
// Use `parse_from` rather than `parse`, which allows a 0 offset.
let section_headers = elf::SectionHeader::parse_from(
&section_headers_data,
0,
self.header.e_shnum as usize,
self.context,
)?;
Ok(section_headers)
}
fn find_build_id_note(
&mut self,
offset: u64,
size: u64,
alignment: u64,
) -> Result<Option<Vec<u8>>, Error> {
let notes = self.module_memory.read(offset, size)?;
for note in (elf::note::NoteDataIterator {
data: &notes,
// Note that `NoteDataIterator::size` is poorly named, it is actually an end offset. In
// this case since our start offset is 0 we still set it to the size.
size: size as usize,
offset: 0,
ctx: (alignment as usize, self.context),
}) {
let Ok(note) = note else { break };
if note.name == "GNU" && note.n_type == elf::note::NT_GNU_BUILD_ID {
return Ok(Some(note.desc.to_owned()));
}
}
Ok(None)
}
}
#[cfg(test)]
mod test {
use super::*;
/// This is a small (but valid) 64-bit little-endian elf executable with the following layout:
/// * ELF header
/// * program header: text segment
/// * program header: note
/// * program header: dynamic
/// * section header: null
/// * section header: .text
/// * section header: .note.gnu.build-id
/// * section header: .shstrtab
/// * section header: .dynamic
/// * section header: .dynstr
/// * note header (build id note)
/// * shstrtab
/// * dynamic (SONAME/STRTAB/STRSZ)
/// * dynstr (SONAME string = libfoo.so.1)
/// * program (calls exit(0))
const TINY_ELF: &[u8] = &[
0x7f, 0x45, 0x4c, 0x46, 0x02, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x02, 0x00, 0x3e, 0x00, 0x01, 0x00, 0x00, 0x00, 0x0a, 0x03, 0x40, 0x00, 0x00, 0x00,
0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x38, 0x00, 0x03, 0x00, 0x40, 0x00,
0x06, 0x00, 0x03, 0x00, 0x01, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x0a, 0x03, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x03, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x68, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x68, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xbd, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbd, 0x02, 0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x03, 0x40,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x07, 0x00, 0x00, 0x00, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x68, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x68, 0x02, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x1a, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x02, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x88, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x35, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x24, 0x00, 0x00, 0x00, 0x06, 0x00, 0x00,
0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbd, 0x02, 0x40, 0x00, 0x00, 0x00,
0x00, 0x00, 0xbd, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2d, 0x00, 0x00,
0x00, 0x03, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfd, 0x02,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfd, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x04, 0x00, 0x00, 0x00, 0x10, 0x00, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x47, 0x4e,
0x55, 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d,
0x0e, 0x0f, 0x10, 0x00, 0x2e, 0x74, 0x65, 0x78, 0x74, 0x00, 0x2e, 0x6e, 0x6f, 0x74, 0x65,
0x2e, 0x67, 0x6e, 0x75, 0x2e, 0x62, 0x75, 0x69, 0x6c, 0x64, 0x2d, 0x69, 0x64, 0x00, 0x2e,
0x73, 0x68, 0x73, 0x74, 0x72, 0x74, 0x61, 0x62, 0x00, 0x2e, 0x64, 0x79, 0x6e, 0x61, 0x6d,
0x69, 0x63, 0x00, 0x2e, 0x64, 0x79, 0x6e, 0x73, 0x74, 0x72, 0x00, 0x0e, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0xfd, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0d, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x6c, 0x69, 0x62, 0x66, 0x6f, 0x6f, 0x2e, 0x73, 0x6f, 0x2e, 0x31, 0x00, 0x6a, 0x3c,
0x58, 0x31, 0xff, 0x0f, 0x05,
];
#[test]
fn build_id_program_headers() {
let mut reader = ModuleReader::new(TINY_ELF.into()).unwrap();
let id = reader.build_id_from_program_headers().unwrap();
assert_eq!(
id,
vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
);
}
#[test]
fn build_id_section() {
let mut reader = ModuleReader::new(TINY_ELF.into()).unwrap();
let id = reader.build_id_from_section().unwrap();
assert_eq!(
id,
vec![1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16]
);
}
#[test]
fn build_id_text_hash() {
let mut reader = ModuleReader::new(TINY_ELF.into()).unwrap();
let id = reader.build_id_generate_from_text().unwrap();
assert_eq!(
id,
vec![0x6a, 0x3c, 0x58, 0x31, 0xff, 0x0f, 0x05, 0, 0, 0, 0, 0, 0, 0, 0, 0]
);
}
#[test]
fn soname_program_headers() {
let mut reader = ModuleReader::new(TINY_ELF.into()).unwrap();
let soname = reader.soname_from_program_headers().unwrap();
assert_eq!(soname, "libfoo.so.1");
}
#[test]
fn soname_section() {
let mut reader = ModuleReader::new(TINY_ELF.into()).unwrap();
let soname = reader.soname_from_sections().unwrap();
assert_eq!(soname, "libfoo.so.1");
}
}