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Add feature flag to output debug information while running wasm (#147)

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* Generate debug info during execution

* feature cfg debug output
This commit is contained in:
Lachlan Sneff
2019-02-06 15:43:27 -08:00
committed by GitHub
parent d975a4c487
commit 2f2f86a4de
4 changed files with 191 additions and 3 deletions
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33
lib/clif-backend/src/resolver.rs
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@ -136,9 +136,17 @@ impl FuncResolverBuilder {
msg: format!("unexpected libcall: {}", libcall),
})?,
},
RelocationType::Intrinsic(ref name) => Err(CompileError::InternalError {
msg: format!("unexpected intrinsic: {}", name),
})?,
RelocationType::Intrinsic(ref name) => match name.as_str() {
"i32print" => i32_print as isize,
"i64print" => i64_print as isize,
"f32print" => f32_print as isize,
"f64print" => f64_print as isize,
"strtdbug" => start_debug as isize,
"enddbug" => end_debug as isize,
_ => Err(CompileError::InternalError {
msg: format!("unexpected intrinsic: {}", name),
})?,
},
RelocationType::VmCall(vmcall) => match vmcall {
VmCall::Local(kind) => match kind {
VmCallKind::StaticMemoryGrow => vmcalls::local_static_memory_grow as _,
@ -248,3 +256,22 @@ impl backend::FuncResolver for FuncResolver {
fn round_up(n: usize, multiple: usize) -> usize {
(n + multiple - 1) & !(multiple - 1)
}
extern "C" fn i32_print(n: i32) {
print!(" i32: {},", n);
}
extern "C" fn i64_print(n: i64) {
print!(" i64: {},", n);
}
extern "C" fn f32_print(n: f32) {
print!(" f32: {},", n);
}
extern "C" fn f64_print(n: f64) {
print!(" f64: {},", n);
}
extern "C" fn start_debug(func_index: u32) {
print!("func ({}), args: [", func_index);
}
extern "C" fn end_debug() {
println!(" ]");
}