pub struct ElfObject<'data> { /* private fields */ }
Expand description
Executable and Linkable Format, used for executables and libraries on Linux.
Implementations
sourceimpl<'data> ElfObject<'data>
impl<'data> ElfObject<'data>
sourcepub fn parse(data: &'data [u8]) -> Result<ElfObject<'data>, ElfError>
pub fn parse(data: &'data [u8]) -> Result<ElfObject<'data>, ElfError>
Tries to parse an ELF object from the given slice. Will return a partially parsed ELF object if at least the program and section headers can be parsed.
sourcepub fn file_format(&self) -> FileFormat
pub fn file_format(&self) -> FileFormat
The container file format, which is always FileFormat::Elf
.
sourcepub fn code_id(&self) -> Option<CodeId>
pub fn code_id(&self) -> Option<CodeId>
The code identifier of this object.
As opposed to Mach-O, ELF does not specify a unique ID for object files in
its header. Compilers and linkers usually add either SHT_NOTE
sections or
PT_NOTE
program header elements for this purpose.
sourcepub fn debug_link(&self) -> Result<Option<DebugLink<'_>>, DebugLinkError<'_>>
pub fn debug_link(&self) -> Result<Option<DebugLink<'_>>, DebugLinkError<'_>>
The debug link of this object.
The debug link is an alternative to the build id for specifying the location of an ELF’s debugging information. It refers to a filename that can be used to build various debug paths where debuggers can look for the debug files.
Errors
- None if there is no gnu_debuglink section
- DebugLinkError if this section exists, but is malformed
sourcepub fn debug_id(&self) -> DebugId
pub fn debug_id(&self) -> DebugId
The debug information identifier of an ELF object.
The debug identifier is a rehash of the first 16 bytes of the code_id
, if
present. Otherwise, this function will hash the first page of the .text
section (program code) to synthesize a unique ID. This is likely not a valid
UUID since was generated off a hash value.
If all of the above fails, the identifier will be an empty DebugId
.
sourcepub fn arch(&self) -> Arch
pub fn arch(&self) -> Arch
The CPU architecture of this object, as specified in the ELF header.
sourcepub fn kind(&self) -> ObjectKind
pub fn kind(&self) -> ObjectKind
The kind of this object, as specified in the ELF header.
sourcepub fn load_address(&self) -> u64
pub fn load_address(&self) -> u64
The address at which the image prefers to be loaded into memory.
ELF files store all internal addresses as if it was loaded at that address. When the image is actually loaded, that spot might already be taken by other images and so it must be relocated to a new address. At runtime, a relocation table manages the arithmetics behind this.
Addresses used in symbols
or debug_session
have already been rebased relative to that
load address, so that the caller only has to deal with addresses relative to the actual
start of the image.
sourcepub fn has_symbols(&self) -> bool
pub fn has_symbols(&self) -> bool
Determines whether this object exposes a public symbol table.
sourcepub fn symbols(&self) -> ElfSymbolIterator<'data, '_>ⓘNotable traits for ElfSymbolIterator<'data, 'object>impl<'data, 'object> Iterator for ElfSymbolIterator<'data, 'object> type Item = Symbol<'data>;
pub fn symbols(&self) -> ElfSymbolIterator<'data, '_>ⓘNotable traits for ElfSymbolIterator<'data, 'object>impl<'data, 'object> Iterator for ElfSymbolIterator<'data, 'object> type Item = Symbol<'data>;
Returns an iterator over symbols in the public symbol table.
sourcepub fn symbol_map(&self) -> SymbolMap<'data>
pub fn symbol_map(&self) -> SymbolMap<'data>
Returns an ordered map of symbols in the symbol table.
sourcepub fn has_debug_info(&self) -> bool
pub fn has_debug_info(&self) -> bool
Determines whether this object contains debug information.
sourcepub fn debug_session(&self) -> Result<DwarfDebugSession<'data>, DwarfError>
pub fn debug_session(&self) -> Result<DwarfDebugSession<'data>, DwarfError>
Constructs a debugging session.
A debugging session loads certain information from the object file and creates caches for efficient access to various records in the debug information. Since this can be quite a costly process, try to reuse the debugging session as long as possible.
ELF files generally use DWARF debugging information, which is also used by MachO containers on macOS.
Constructing this session will also work if the object does not contain debugging
information, in which case the session will be a no-op. This can be checked via
has_debug_info
.
sourcepub fn has_unwind_info(&self) -> bool
pub fn has_unwind_info(&self) -> bool
Determines whether this object contains stack unwinding information.
sourcepub fn has_sources(&self) -> bool
pub fn has_sources(&self) -> bool
Determines whether this object contains embedded source.
sourcepub fn is_malformed(&self) -> bool
pub fn is_malformed(&self) -> bool
Determines whether this object is malformed and was only partially parsed
Trait Implementations
sourceimpl<'data> Dwarf<'data> for ElfObject<'data>
impl<'data> Dwarf<'data> for ElfObject<'data>
sourcefn endianity(&self) -> RunTimeEndian
fn endianity(&self) -> RunTimeEndian
Returns whether the file was compiled for a big-endian or little-endian machine. Read more
sourcefn raw_section(&self, name: &str) -> Option<DwarfSection<'data>>
fn raw_section(&self, name: &str) -> Option<DwarfSection<'data>>
Returns information and raw data of a section. Read more
sourcefn section(&self, name: &str) -> Option<DwarfSection<'data>>
fn section(&self, name: &str) -> Option<DwarfSection<'data>>
Returns information and data of a section. Read more
sourcefn has_section(&self, name: &str) -> bool
fn has_section(&self, name: &str) -> bool
Determines whether the specified section exists. Read more
sourceimpl<'data, 'object> ObjectLike<'data, 'object> for ElfObject<'data> where
'data: 'object,
impl<'data, 'object> ObjectLike<'data, 'object> for ElfObject<'data> where
'data: 'object,
type Error = DwarfError
type Error = DwarfError
Errors thrown when reading information from this object.
type Session = DwarfDebugSession<'data>
type Session = DwarfDebugSession<'data>
A session that allows optimized access to debugging information.
type SymbolIterator = ElfSymbolIterator<'data, 'object>
type SymbolIterator = ElfSymbolIterator<'data, 'object>
The iterator over the symbols in the public symbol table.
sourcefn file_format(&self) -> FileFormat
fn file_format(&self) -> FileFormat
The container format of this file.
sourcefn kind(&self) -> ObjectKind
fn kind(&self) -> ObjectKind
The kind of this object.
sourcefn load_address(&self) -> u64
fn load_address(&self) -> u64
The address at which the image prefers to be loaded into memory.
sourcefn has_symbols(&self) -> bool
fn has_symbols(&self) -> bool
Determines whether this object exposes a public symbol table.
sourcefn symbols(
&'object self
) -> <ElfObject<'data> as ObjectLike<'data, 'object>>::SymbolIterator
fn symbols(
&'object self
) -> <ElfObject<'data> as ObjectLike<'data, 'object>>::SymbolIterator
Returns an iterator over symbols in the public symbol table.
sourcefn symbol_map(&self) -> SymbolMap<'data>
fn symbol_map(&self) -> SymbolMap<'data>
Returns an ordered map of symbols in the symbol table.
sourcefn has_debug_info(&self) -> bool
fn has_debug_info(&self) -> bool
Determines whether this object contains debug information.
sourcefn debug_session(
&self
) -> Result<<ElfObject<'data> as ObjectLike<'data, 'object>>::Session, <ElfObject<'data> as ObjectLike<'data, 'object>>::Error>
fn debug_session(
&self
) -> Result<<ElfObject<'data> as ObjectLike<'data, 'object>>::Session, <ElfObject<'data> as ObjectLike<'data, 'object>>::Error>
Constructs a debugging session. Read more
sourcefn has_unwind_info(&self) -> bool
fn has_unwind_info(&self) -> bool
Determines whether this object contains stack unwinding information.
sourcefn has_sources(&self) -> bool
fn has_sources(&self) -> bool
Determines whether this object contains embedded sources.
sourcefn is_malformed(&self) -> bool
fn is_malformed(&self) -> bool
Determines whether this object is malformed and was only partially parsed
Auto Trait Implementations
impl<'data> RefUnwindSafe for ElfObject<'data>
impl<'data> Send for ElfObject<'data>
impl<'data> Sync for ElfObject<'data>
impl<'data> Unpin for ElfObject<'data>
impl<'data> UnwindSafe for ElfObject<'data>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<I, T> ExtractContext<I, ()> for T
impl<I, T> ExtractContext<I, ()> for T
fn extract_context(self, _original_input: I)
fn extract_context(self, _original_input: I)
Given the context attached to a nom error, and given the original input to the nom parser, extract more the useful context information. Read more
impl<T> FmtForward for T
impl<T> FmtForward for T
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
Causes self
to use its Binary
implementation when Debug
-formatted. Read more
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
Causes self
to use its Display
implementation when
Debug
-formatted. Read more
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
Causes self
to use its LowerExp
implementation when
Debug
-formatted. Read more
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
Causes self
to use its LowerHex
implementation when
Debug
-formatted. Read more
fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
Causes self
to use its Octal
implementation when Debug
-formatted. Read more
fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
Causes self
to use its Pointer
implementation when
Debug
-formatted. Read more
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
Causes self
to use its UpperExp
implementation when
Debug
-formatted. Read more
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
Causes self
to use its UpperHex
implementation when
Debug
-formatted. Read more
fn fmt_list(self) -> FmtList<Self> where
&'a Self: for<'a> IntoIterator,
fn fmt_list(self) -> FmtList<Self> where
&'a Self: for<'a> IntoIterator,
Formats each item in a sequence. Read more
impl<T> Pipe for T where
T: ?Sized,
impl<T> Pipe for T where
T: ?Sized,
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
Pipes by value. This is generally the method you want to use. Read more
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
Borrows self
and passes that borrow into the pipe function. Read more
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,
fn pipe_ref_mut<'a, R>(&'a mut self, func: impl FnOnce(&'a mut Self) -> R) -> R where
R: 'a,
Mutably borrows self
and passes that borrow into the pipe function. Read more
fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
Self: Borrow<B>,
B: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.borrow()
into the pipe function. Read more
fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
B: 'a + ?Sized,
R: 'a,
Mutably borrows self
, then passes self.borrow_mut()
into the pipe
function. Read more
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
Self: AsRef<U>,
U: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.as_ref()
into the pipe function.
fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
fn pipe_as_mut<'a, U, R>(&'a mut self, func: impl FnOnce(&'a mut U) -> R) -> R where
Self: AsMut<U>,
U: 'a + ?Sized,
R: 'a,
Mutably borrows self
, then passes self.as_mut()
into the pipe
function. Read more
fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Deref<Target = T>,
T: 'a + ?Sized,
R: 'a,
fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Deref<Target = T>,
T: 'a + ?Sized,
R: 'a,
Borrows self
, then passes self.deref()
into the pipe function.
impl<I> RecreateContext<I> for I
impl<I> RecreateContext<I> for I
fn recreate_context(_original_input: I, tail: I) -> I
fn recreate_context(_original_input: I, tail: I) -> I
Given the original input, as well as the context reported by nom, recreate a context in the original string where the error occurred. Read more
impl<T> Tap for T
impl<T> Tap for T
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
Immutable access to the Borrow<B>
of a value. Read more
fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
Mutable access to the BorrowMut<B>
of a value. Read more
fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
Immutable access to the AsRef<R>
view of a value. Read more
fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
Mutable access to the AsMut<R>
view of a value. Read more
fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
Self: Deref<Target = T>,
T: ?Sized,
fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
Self: Deref<Target = T>,
T: ?Sized,
Immutable access to the Deref::Target
of a value. Read more
fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
Mutable access to the Deref::Target
of a value. Read more
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
Calls .tap()
only in debug builds, and is erased in release builds.
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
Calls .tap_mut()
only in debug builds, and is erased in release
builds. Read more
fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
Calls .tap_borrow()
only in debug builds, and is erased in release
builds. Read more
fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
Calls .tap_borrow_mut()
only in debug builds, and is erased in release
builds. Read more
fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
Calls .tap_ref()
only in debug builds, and is erased in release
builds. Read more
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
Calls .tap_ref_mut()
only in debug builds, and is erased in release
builds. Read more