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libdyld: accept ARM ELF header

This commit is contained in:
Sebastien Bourdeauducq 2020-04-17 19:57:45 +08:00
parent b22f68eaaf
commit e76b84335e
1 changed files with 15 additions and 3 deletions
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18
libdyld/src/lib.rs
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@ -202,14 +202,26 @@ impl<'a> Library<'a> {
let ehdr = read_unaligned::<Elf32_Ehdr>(data, 0) let ehdr = read_unaligned::<Elf32_Ehdr>(data, 0)
.map_err(|()| "cannot read ELF header")?; .map_err(|()| "cannot read ELF header")?;
const IDENT: [u8; EI_NIDENT] = [ const IDENT_OPENRISC: [u8; EI_NIDENT] = [
ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3, ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3,
ELFCLASS32, ELFDATA2MSB, EV_CURRENT, ELFOSABI_NONE, ELFCLASS32, ELFDATA2MSB, EV_CURRENT, ELFOSABI_NONE,
/* ABI version */ 0, /* padding */ 0, 0, 0, 0, 0, 0, 0 /* ABI version */ 0, /* padding */ 0, 0, 0, 0, 0, 0, 0
]; ];
const IDENT_ARM: [u8; EI_NIDENT] = [
ELFMAG0, ELFMAG1, ELFMAG2, ELFMAG3,
ELFCLASS32, ELFDATA2LSB, EV_CURRENT, ELFOSABI_NONE,
/* ABI version */ 0, /* padding */ 0, 0, 0, 0, 0, 0, 0
];
if ehdr.e_ident != IDENT || ehdr.e_type != ET_DYN || ehdr.e_machine != EM_OPENRISC { if ehdr.e_type != ET_DYN {
return Err("not a shared library for a supported architecture")? return Err("not a shared library")?
}
if !((ehdr.e_ident == IDENT_OPENRISC && ehdr.e_machine == EM_OPENRISC)
|| ((ehdr.e_ident == IDENT_ARM && ehdr.e_machine == EM_ARM))) {
println!("e_type={}", ehdr.e_type);
println!("e_machine={}", ehdr.e_machine);
return Err("not for a supported architecture")?
} }
let mut dyn_off = None; let mut dyn_off = None;