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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-18 02:49:50 +0000 |
commit | 9835e2ae736235810b4ea1c162ca5e65c547e770 (patch) | |
tree | 3fcebf40ed70e581d776a8a4c65923e8ec20e026 /vendor/object-0.29.0/src/read/coff/file.rs | |
parent | Releasing progress-linux version 1.70.0+dfsg2-1~progress7.99u1. (diff) | |
download | rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.tar.xz rustc-9835e2ae736235810b4ea1c162ca5e65c547e770.zip |
Merging upstream version 1.71.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/object-0.29.0/src/read/coff/file.rs')
-rw-r--r-- | vendor/object-0.29.0/src/read/coff/file.rs | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/vendor/object-0.29.0/src/read/coff/file.rs b/vendor/object-0.29.0/src/read/coff/file.rs deleted file mode 100644 index c6cc9f846..000000000 --- a/vendor/object-0.29.0/src/read/coff/file.rs +++ /dev/null @@ -1,247 +0,0 @@ -use alloc::vec::Vec; - -use crate::read::{ - self, Architecture, Export, FileFlags, Import, NoDynamicRelocationIterator, Object, ObjectKind, - ObjectSection, ReadError, ReadRef, Result, SectionIndex, SymbolIndex, -}; -use crate::{pe, LittleEndian as LE}; - -use super::{ - CoffComdat, CoffComdatIterator, CoffSection, CoffSectionIterator, CoffSegment, - CoffSegmentIterator, CoffSymbol, CoffSymbolIterator, CoffSymbolTable, SectionTable, - SymbolTable, -}; - -/// The common parts of `PeFile` and `CoffFile`. -#[derive(Debug)] -pub(crate) struct CoffCommon<'data, R: ReadRef<'data>> { - pub(crate) sections: SectionTable<'data>, - // TODO: ImageSymbolExBytes - pub(crate) symbols: SymbolTable<'data, R>, - pub(crate) image_base: u64, -} - -/// A COFF object file. -#[derive(Debug)] -pub struct CoffFile<'data, R: ReadRef<'data> = &'data [u8]> { - pub(super) header: &'data pe::ImageFileHeader, - pub(super) common: CoffCommon<'data, R>, - pub(super) data: R, -} - -impl<'data, R: ReadRef<'data>> CoffFile<'data, R> { - /// Parse the raw COFF file data. - pub fn parse(data: R) -> Result<Self> { - let mut offset = 0; - let header = pe::ImageFileHeader::parse(data, &mut offset)?; - let sections = header.sections(data, offset)?; - let symbols = header.symbols(data)?; - - Ok(CoffFile { - header, - common: CoffCommon { - sections, - symbols, - image_base: 0, - }, - data, - }) - } -} - -impl<'data, R: ReadRef<'data>> read::private::Sealed for CoffFile<'data, R> {} - -impl<'data, 'file, R> Object<'data, 'file> for CoffFile<'data, R> -where - 'data: 'file, - R: 'file + ReadRef<'data>, -{ - type Segment = CoffSegment<'data, 'file, R>; - type SegmentIterator = CoffSegmentIterator<'data, 'file, R>; - type Section = CoffSection<'data, 'file, R>; - type SectionIterator = CoffSectionIterator<'data, 'file, R>; - type Comdat = CoffComdat<'data, 'file, R>; - type ComdatIterator = CoffComdatIterator<'data, 'file, R>; - type Symbol = CoffSymbol<'data, 'file, R>; - type SymbolIterator = CoffSymbolIterator<'data, 'file, R>; - type SymbolTable = CoffSymbolTable<'data, 'file, R>; - type DynamicRelocationIterator = NoDynamicRelocationIterator; - - fn architecture(&self) -> Architecture { - match self.header.machine.get(LE) { - pe::IMAGE_FILE_MACHINE_ARMNT => Architecture::Arm, - pe::IMAGE_FILE_MACHINE_ARM64 => Architecture::Aarch64, - pe::IMAGE_FILE_MACHINE_I386 => Architecture::I386, - pe::IMAGE_FILE_MACHINE_AMD64 => Architecture::X86_64, - _ => Architecture::Unknown, - } - } - - #[inline] - fn is_little_endian(&self) -> bool { - true - } - - #[inline] - fn is_64(&self) -> bool { - // Windows COFF is always 32-bit, even for 64-bit architectures. This could be confusing. - false - } - - fn kind(&self) -> ObjectKind { - ObjectKind::Relocatable - } - - fn segments(&'file self) -> CoffSegmentIterator<'data, 'file, R> { - CoffSegmentIterator { - file: self, - iter: self.common.sections.iter(), - } - } - - fn section_by_name_bytes( - &'file self, - section_name: &[u8], - ) -> Option<CoffSection<'data, 'file, R>> { - self.sections() - .find(|section| section.name_bytes() == Ok(section_name)) - } - - fn section_by_index(&'file self, index: SectionIndex) -> Result<CoffSection<'data, 'file, R>> { - let section = self.common.sections.section(index.0)?; - Ok(CoffSection { - file: self, - index, - section, - }) - } - - fn sections(&'file self) -> CoffSectionIterator<'data, 'file, R> { - CoffSectionIterator { - file: self, - iter: self.common.sections.iter().enumerate(), - } - } - - fn comdats(&'file self) -> CoffComdatIterator<'data, 'file, R> { - CoffComdatIterator { - file: self, - index: 0, - } - } - - fn symbol_by_index(&'file self, index: SymbolIndex) -> Result<CoffSymbol<'data, 'file, R>> { - let symbol = self.common.symbols.symbol(index.0)?; - Ok(CoffSymbol { - file: &self.common, - index, - symbol, - }) - } - - fn symbols(&'file self) -> CoffSymbolIterator<'data, 'file, R> { - CoffSymbolIterator { - file: &self.common, - index: 0, - } - } - - #[inline] - fn symbol_table(&'file self) -> Option<CoffSymbolTable<'data, 'file, R>> { - Some(CoffSymbolTable { file: &self.common }) - } - - fn dynamic_symbols(&'file self) -> CoffSymbolIterator<'data, 'file, R> { - CoffSymbolIterator { - file: &self.common, - // Hack: don't return any. - index: self.common.symbols.len(), - } - } - - #[inline] - fn dynamic_symbol_table(&'file self) -> Option<CoffSymbolTable<'data, 'file, R>> { - None - } - - #[inline] - fn dynamic_relocations(&'file self) -> Option<NoDynamicRelocationIterator> { - None - } - - #[inline] - fn imports(&self) -> Result<Vec<Import<'data>>> { - // TODO: this could return undefined symbols, but not needed yet. - Ok(Vec::new()) - } - - #[inline] - fn exports(&self) -> Result<Vec<Export<'data>>> { - // TODO: this could return global symbols, but not needed yet. - Ok(Vec::new()) - } - - fn has_debug_symbols(&self) -> bool { - self.section_by_name(".debug_info").is_some() - } - - fn relative_address_base(&self) -> u64 { - 0 - } - - #[inline] - fn entry(&self) -> u64 { - 0 - } - - fn flags(&self) -> FileFlags { - FileFlags::Coff { - characteristics: self.header.characteristics.get(LE), - } - } -} - -impl pe::ImageFileHeader { - /// Read the file header. - /// - /// `data` must be the entire file data. - /// `offset` must be the file header offset. It is updated to point after the optional header, - /// which is where the section headers are located. - pub fn parse<'data, R: ReadRef<'data>>(data: R, offset: &mut u64) -> read::Result<&'data Self> { - let header = data - .read::<pe::ImageFileHeader>(offset) - .read_error("Invalid COFF file header size or alignment")?; - - // Skip over the optional header. - *offset = offset - .checked_add(header.size_of_optional_header.get(LE).into()) - .read_error("Invalid COFF optional header size")?; - - // TODO: maybe validate that the machine is known? - Ok(header) - } - - /// Read the section table. - /// - /// `data` must be the entire file data. - /// `offset` must be after the optional file header. - #[inline] - pub fn sections<'data, R: ReadRef<'data>>( - &self, - data: R, - offset: u64, - ) -> read::Result<SectionTable<'data>> { - SectionTable::parse(self, data, offset) - } - - /// Read the symbol table and string table. - /// - /// `data` must be the entire file data. - #[inline] - pub fn symbols<'data, R: ReadRef<'data>>( - &self, - data: R, - ) -> read::Result<SymbolTable<'data, R>> { - SymbolTable::parse(self, data) - } -} |