1 use crate::spec::{LinkArgs, LinkerFlavor, TargetOptions, RelroLevel};
2 use std::default::Default;
4 pub fn opts() -> TargetOptions {
5 let mut args = LinkArgs::new();
6 args.insert(LinkerFlavor::Gcc, vec![
7 // We want to be able to strip as much executable code as possible
8 // from the linker command line, and this flag indicates to the
9 // linker that it can avoid linking in dynamic libraries that don't
10 // actually satisfy any symbols up to that point (as with many other
11 // resolutions the linker does). This option only applies to all
12 // following libraries so we're sure to pass it as one of the first
14 "-Wl,--as-needed".to_string(),
16 // Always enable NX protection when it is available
17 "-Wl,-z,noexecstack".to_string()
21 dynamic_linking: true,
23 target_family: Some("unix".to_string()),
27 position_independent_executables: true,
28 relro_level: RelroLevel::Full,
30 crt_static_default: true,
31 crt_static_respected: true,