a-steps.md
lang.rs
module.s
psp.json
raw.rs
utils.rs
> % rustc hello.rs --target=psp -lpspdebug -lpspdisplay -lpspge -lm -lc -lpspuser -lgcc
> % psp-fixup-imports hello && psp-prxgen hello hello.prx
| #![no_std] | |
| #![no_main] | |
| #![feature(intrinsics, lang_items, linkage)] | |
| mod lang; | |
| mod raw; | |
| mod utils; | |
| #[no_mangle] | |
| pub extern "C" fn main() { | |
| extern { | |
| fn pspDebugScreenInit(); | |
| } | |
| unsafe { | |
| pspDebugScreenInit(); | |
| } | |
| utils::print("Hello World!"); | |
| } |
| // Lang items and intrinsics | |
| #[lang = "copy"] | |
| trait Copy {} | |
| #[lang = "sized"] | |
| trait Sized {} | |
| #[lang = "sync"] | |
| trait Sync {} | |
| extern "rust-intrinsic" { | |
| pub fn abort() -> !; | |
| pub fn transmute<F, T>(from: F) -> T; | |
| } |
| .section .lib.ent.top, "a", @progbits | |
| .align 2 | |
| .word 0 | |
| __lib_ent_top: | |
| .section .lib.ent.btm, "a", @progbits | |
| .align 2 | |
| __lib_ent_bottom: | |
| .word 0 | |
| .section .lib.stub.top, "a", @progbits | |
| .align 2 | |
| .word 0 | |
| __lib_stub_top: | |
| .section .lib.stub.btm, "a", @progbits | |
| .align 2 | |
| __lib_stub_bottom: | |
| .word 0 | |
| .global __lib_ent_top | |
| .global __lib_ent_bottom | |
| .global __lib_stub_top | |
| .global __lib_stub_bottom |
| { | |
| "data-layout": "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:64:128-a0:0:64-n32", | |
| "llvm-target": "mipsallegrexel-unknown-psp-elf", | |
| "target-endian": "little", | |
| "target-word-size": "32", | |
| "arch": "mips", | |
| "os": "psp", | |
| "cpu": "mips32", | |
| "features": "+eabi,-mips32,-o32", | |
| "morestack": false, | |
| "no-compiler-rt": true, | |
| "executables": true, | |
| "linker": "psp-gcc", | |
| "position_independant_executables": true, | |
| "function-sections": false, | |
| "relocation-model": "static", | |
| "linker_is_gnu": true, | |
| "pre-link-args": [ | |
| "-fPIC", | |
| "-L/scratch/laden/local/pspsdk/psp/sdk/lib", | |
| "-specs=/scratch/laden/local/pspsdk/psp/sdk/lib/prxspecs", | |
| "-Wl,-q,-T/scratch/laden/local/pspsdk/psp/sdk/lib/linkfile.prx", | |
| "/scratch/laden/local/pspsdk/psp/sdk/lib/prxexports.o", | |
| "module.s" | |
| ] | |
| } |
| #[allow(dead_code)] | |
| #[repr(C)] | |
| pub struct SceModuleInfo { | |
| mod_attribute: u16, | |
| mod_version: [u8, ..2], | |
| mod_name: [i8, ..27], | |
| terminal: i8, | |
| gp_value: *const (), | |
| ent_top: *const (), | |
| ent_end: *const (), | |
| stub_top: *const (), | |
| stub_end: *const () | |
| } | |
| extern { | |
| static _gp: *const i8; | |
| static __lib_ent_top: *const i8; | |
| static __lib_ent_bottom: *const (); | |
| static __lib_stub_top: *const (); | |
| static __lib_stub_bottom: *const (); | |
| } | |
| #[no_mangle] | |
| #[link_section = ".rodata.sceModuleInfo"] | |
| #[linkage = "external"] | |
| #[allow(non_upper_case_globals)] | |
| pub static module_info: SceModuleInfo = | |
| SceModuleInfo { | |
| mod_attribute: 0, // 0 - User mode | |
| mod_version: [0, 1], | |
| mod_name: [0, ..27], | |
| terminal: 0, | |
| gp_value: &_gp as *const _ as *const (), | |
| ent_top: &__lib_ent_top as *const _ as *const (), | |
| ent_end: &__lib_ent_bottom as *const _ as *const (), | |
| stub_top: &__lib_stub_top as *const _ as *const (), | |
| stub_end: &__lib_stub_bottom as *const _ as *const (), | |
| }; |
| use lang::transmute; | |
| static NL: &'static str = "\n\0"; | |
| extern { | |
| fn printf(format: *const u8, ...) -> i32; | |
| fn pspDebugScreenPrintf(format: *const u8, ...); | |
| } | |
| pub fn print(s: &str) { | |
| unsafe { | |
| // Get the pointer & size for the passed in string | |
| let (ptr, sz): (*const u8, i32) = transmute(s); | |
| // The format string for printf | |
| let (fptr, _): (*const u8, i32) = transmute("%.*s\0"); | |
| //printf(fptr, sz, ptr); | |
| pspDebugScreenPrintf(fptr, sz, ptr); | |
| } | |
| } | |
| pub fn println(s: &str) { | |
| print(s); | |
| unsafe { | |
| let (np, _): (*const u8, i32) = transmute(NL); | |
| printf(np); | |
| } | |
| } |