]>
Commit | Line | Data |
---|---|---|
f2b60f7d FG |
1 | //! Targets the ARMv4T, with code as `a32` code by default. |
2 | //! | |
3 | //! Primarily of use for the GBA, but usable with other devices too. | |
4 | //! | |
5 | //! Please ping @Lokathor if changes are needed. | |
6 | //! | |
f2b60f7d FG |
7 | //! **Important:** This target profile **does not** specify a linker script. You |
8 | //! just get the default link script when you build a binary for this target. | |
9 | //! The default link script is very likely wrong, so you should use | |
10 | //! `-Clink-arg=-Tmy_script.ld` to override that with a correct linker script. | |
11 | ||
2b03887a | 12 | use crate::spec::{cvs, Cc, LinkerFlavor, Lld, PanicStrategy, RelocModel, Target, TargetOptions}; |
f2b60f7d FG |
13 | |
14 | pub fn target() -> Target { | |
15 | Target { | |
16 | llvm_target: "armv4t-none-eabi".into(), | |
17 | pointer_width: 32, | |
18 | arch: "arm".into(), | |
19 | /* Data layout args are '-' separated: | |
20 | * little endian | |
21 | * stack is 64-bit aligned (EABI) | |
22 | * pointers are 32-bit | |
23 | * i64 must be 64-bit aligned (EABI) | |
24 | * mangle names with ELF style | |
25 | * native integers are 32-bit | |
26 | * All other elements are default | |
27 | */ | |
28 | data_layout: "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".into(), | |
29 | options: TargetOptions { | |
30 | abi: "eabi".into(), | |
353b0b11 FG |
31 | linker_flavor: LinkerFlavor::Gnu(Cc::No, Lld::Yes), |
32 | linker: Some("rust-lld".into()), | |
f2b60f7d FG |
33 | asm_args: cvs!["-mthumb-interwork", "-march=armv4t", "-mlittle-endian",], |
34 | // Force-enable 32-bit atomics, which allows the use of atomic load/store only. | |
35 | // The resulting atomics are ABI incompatible with atomics backed by libatomic. | |
36 | features: "+soft-float,+strict-align,+atomics-32".into(), | |
37 | main_needs_argc_argv: false, | |
38 | atomic_cas: false, | |
39 | has_thumb_interworking: true, | |
40 | relocation_model: RelocModel::Static, | |
41 | panic_strategy: PanicStrategy::Abort, | |
add651ee | 42 | // From thumb_base, rust-lang/rust#44993. |
f2b60f7d | 43 | emit_debug_gdb_scripts: false, |
add651ee | 44 | // From thumb_base, GCC gives enums a minimum of 8 bits on no-os targets. |
9ffffee4 | 45 | c_enum_min_bits: Some(8), |
f2b60f7d FG |
46 | ..Default::default() |
47 | }, | |
48 | } | |
49 | } |