diff options
| -rw-r--r-- | src/librustc_target/spec/thumbv4t_nintendo_gba.rs | 72 |
1 files changed, 61 insertions, 11 deletions
diff --git a/src/librustc_target/spec/thumbv4t_nintendo_gba.rs b/src/librustc_target/spec/thumbv4t_nintendo_gba.rs index b7e70167c0d..2b3aa33dfa3 100644 --- a/src/librustc_target/spec/thumbv4t_nintendo_gba.rs +++ b/src/librustc_target/spec/thumbv4t_nintendo_gba.rs @@ -1,12 +1,11 @@ -//! Targets the Nintendo Game Boy Advance (GBA). +//! Targets the Nintendo Game Boy Advance (GBA), a handheld game device from 2001. //! -//! The GBA is a handheld game device from 2001. Inside, the CPU is an ARM7TDMI. -//! That's in the ARMv4T architecture family. +//! Please ping @Lokathor if changes are needed. //! -//! Technically the device has no OS, however we're going to copy the -//! `mipsel_sony_psp` target setup and set the OS string to be "GBA". Other than -//! the setting of the `target_os` and `target_vendor` values, this target is a -//! fairly standard configuration for `thumbv4t` +//! Important: This target **does not** specify a linker script or the ROM +//! header. You'll still need to provide these yourself to construct a final +//! binary. Generally you'd do this with something like +//! `-Clink-arg=-Tmy_script.ld` and `-Clink-arg=my_crt.o`. use crate::spec::{LinkerFlavor, LldFlavor, Target, TargetOptions, TargetResult}; @@ -16,14 +15,65 @@ pub fn target() -> TargetResult { target_endian: "little".to_string(), target_pointer_width: "32".to_string(), target_c_int_width: "32".to_string(), - target_os: "gba".to_string(), - target_env: String::new(), + target_os: "none".to_string(), + target_env: "gba".to_string(), target_vendor: "nintendo".to_string(), arch: "arm".to_string(), - data_layout: "TODO".to_string(), + /* Data layout args are '-' separated: + * little endian + * stack is 64-bit aligned (EABI) + * pointers are 32-bit + * i64 must be 64-bit aligned (EABI) + * mangle names with ELF style + * native integers are 32-bit + * All other elements are default + */ + data_layout: "e-S64-p:32:32-i64:64-m:e-n32".to_string(), linker_flavor: LinkerFlavor::Ld, options: TargetOptions { - // TODO + linker: Some("arm-none-eabi-ld".to_string()), + linker_is_gnu: true, + + // extra args passed to the external assembler + asm_args: vec!["-mcpu=arm7tdmi".to_string(), "-mthumb-interwork".to_string()], + + cpu: "arm7tdmi".to_string(), + + // minimum extra features, these cannot be disabled via -C + features: "+soft-float,+strict-align".to_string(), + + executables: true, + + relocation_model: RelocModel::Static, + + //function_sections: bool, + //exe_suffix: String, + main_needs_argc_argv: false, + + // if we have thread-local storage + has_elf_tls: false, + + // don't have atomic compare-and-swap + atomic_cas: false, + + // always just abort + panic_strategy: PanicStrategy::Abort, + + // ABIs to not use + unsupported_abis: super::arm_base::unsupported_abis(), + + // The minimum alignment for global symbols. + min_global_align: Some(4), + + // no threads here + singlethread: true, + + // GBA has no builtins + no_builtins: true, + + // this is off just like in the `thumb_base` + emit_debug_gdb_scripts: false, + ..TargetOptions::default() }, }) |