elf_loader 0.12.0

A pure-rust library for loading all ELF format files from both memory and files.
Documentation 
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// https://loongson.github.io/LoongArch-Documentation/LoongArch-ELF-ABI-CN.html

const EM_LARCH: u16 = 258;
const R_LARCH_64: u32 = 2;
const R_LARCH_RELATIVE: u32 = 3;
const R_LARCH_COPY: u32 = 4;
const R_LARCH_JUMP_SLOT: u32 = 5;
const R_LARCH_TLS_DTPMOD64: u32 = 7;
const R_LARCH_TLS_DTPREL64: u32 = 9;
const R_LARCH_TLS_TPREL64: u32 = 11;
const R_LARCH_IRELATIVE: u32 = 12;

pub const EM_ARCH: u16 = EM_LARCH;
pub const TLS_DTV_OFFSET: usize = 0;

pub const REL_SYMBOLIC: u32 = R_LARCH_64;
pub const REL_RELATIVE: u32 = R_LARCH_RELATIVE;
pub const REL_COPY: u32 = R_LARCH_COPY;
pub const REL_JUMP_SLOT: u32 = R_LARCH_JUMP_SLOT;
pub const REL_DTPMOD: u32 = R_LARCH_TLS_DTPMOD64;
pub const REL_DTPOFF: u32 = R_LARCH_TLS_DTPREL64;
pub const REL_IRELATIVE: u32 = R_LARCH_IRELATIVE;
pub const REL_TPOFF: u32 = R_LARCH_TLS_TPREL64;

pub const REL_GOT: u32 = u32::MAX;

#[cfg(feature = "lazy")]
core::arch::global_asm!(
    "
    .text
    .globl dl_runtime_resolve
	.type dl_runtime_resolve, @function
	.align 16
dl_runtime_resolve:
"
);

#[cfg(feature = "lazy")]
#[inline]
pub(crate) fn prepare_lazy_bind(got: *mut usize, dylib: usize) {
    unsafe extern "C" {
        fn dl_runtime_resolve();
    }
    // 这是安全的，延迟绑定时库是存在的
    unsafe {
        got.add(1).write(dylib);
        got.add(2).write(dl_runtime_resolve as usize);
    }
    unimplemented!()
}