rust/compiler/rustc_target/src/spec/android_base.rs

use crate::spec::{LinkerFlavor, TargetOptions};

pub fn opts() -> TargetOptions {
    let mut base = super::linux_base::opts();
    base.os = "android".to_string();
    // Many of the symbols defined in compiler-rt are also defined in libgcc.
    // Android's linker doesn't like that by default.
    base.pre_link_args
        .entry(LinkerFlavor::Gcc)
        .or_default()
        .push("-Wl,--allow-multiple-definition".to_string());
    base.dwarf_version = Some(2);
    base.position_independent_executables = true;
    base.has_thread_local = false;
    // This is for backward compatibility, see https://github.com/rust-lang/rust/issues/49867
    // for context. (At that time, there was no `-C force-unwind-tables`, so the only solution
    // was to always emit `uwtable`).
    base.default_uwtable = true;
    base.crt_static_respected = false;
    base
}