-
Notifications
You must be signed in to change notification settings - Fork 3.5k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
- Loading branch information
Showing
34 changed files
with
3,098 additions
and
136 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,133 @@ | ||
| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
| use quote::quote; | ||
| use std::{fs::File, io::Read}; | ||
| use syn::parse::{Parse, ParseStream, Result}; | ||
| use syn::LitStr; | ||
|
|
||
| use std::path::PathBuf; | ||
|
|
||
| struct ImportModule { | ||
| importing_file: LitStr, | ||
| } | ||
|
|
||
| impl Parse for ImportModule { | ||
| fn parse(input: ParseStream) -> Result<Self> { | ||
| let importing_file: LitStr = input.parse()?; | ||
| Ok(ImportModule { importing_file }) | ||
| } | ||
| } | ||
|
|
||
| pub fn macro_impl(input: proc_macro::TokenStream) -> proc_macro::TokenStream { | ||
| let import_module_args = syn::parse_macro_input!(input as ImportModule); | ||
|
|
||
| let manifest = | ||
| std::env::var("CARGO_MANIFEST_DIR").expect("variable should always be set by Cargo."); | ||
|
|
||
| let mut path = PathBuf::new(); | ||
| path.push(manifest); | ||
| path = path.join(import_module_args.importing_file.value()); | ||
|
|
||
| let mut fd = File::open(&path) | ||
| .unwrap_or_else(|_| panic!("Unable to find TVM object file at `{}`", path.display())); | ||
| let mut buffer = Vec::new(); | ||
| fd.read_to_end(&mut buffer).unwrap(); | ||
|
|
||
| let fn_names = match goblin::Object::parse(&buffer).unwrap() { | ||
| goblin::Object::Elf(elf) => elf | ||
| .syms | ||
| .iter() | ||
| .filter_map(|s| { | ||
| if s.st_type() == 0 || goblin::elf::sym::type_to_str(s.st_type()) == "FILE" { | ||
| return None; | ||
| } | ||
| match elf.strtab.get(s.st_name) { | ||
| Some(Ok(name)) if name != "" => { | ||
| Some(syn::Ident::new(name, proc_macro2::Span::call_site())) | ||
| } | ||
| _ => None, | ||
| } | ||
| }) | ||
| .collect::<Vec<_>>(), | ||
| goblin::Object::Mach(goblin::mach::Mach::Binary(obj)) => { | ||
| obj.symbols() | ||
| .filter_map(|s| match s { | ||
| Ok((name, ref nlist)) | ||
| if nlist.is_global() | ||
| && nlist.n_sect != 0 | ||
| && !name.ends_with("tvm_module_ctx") => | ||
| { | ||
| Some(syn::Ident::new( | ||
| if name.starts_with('_') { | ||
| // Mach objects prepend a _ to globals. | ||
| &name[1..] | ||
| } else { | ||
| &name | ||
| }, | ||
| proc_macro2::Span::call_site(), | ||
| )) | ||
| } | ||
| _ => None, | ||
| }) | ||
| .collect::<Vec<_>>() | ||
| } | ||
| _ => panic!("Unsupported object format."), | ||
| }; | ||
|
|
||
| let extern_fns = quote! { | ||
| mod ext { | ||
| extern "C" { | ||
| #( | ||
| pub(super) fn #fn_names( | ||
| args: *const tvm_runtime::ffi::TVMValue, | ||
| type_codes: *const std::os::raw::c_int, | ||
| num_args: std::os::raw::c_int | ||
| ) -> std::os::raw::c_int; | ||
| )* | ||
| } | ||
| } | ||
| }; | ||
|
|
||
| let fns = quote! { | ||
| use tvm_runtime::{ffi::TVMValue, ArgValue, RetValue, FuncCallError}; | ||
| #extern_fns | ||
|
|
||
| #( | ||
| pub fn #fn_names(args: &[ArgValue]) -> Result<RetValue, FuncCallError> { | ||
| let (values, type_codes): (Vec<TVMValue>, Vec<i32>) = args | ||
| .into_iter() | ||
| .map(|arg| { | ||
| let (val, code) = arg.to_tvm_value(); | ||
| (val, code as i32) | ||
| }) | ||
| .unzip(); | ||
| let exit_code = unsafe { | ||
| ext::#fn_names(values.as_ptr(), type_codes.as_ptr(), values.len() as i32) | ||
| }; | ||
| if exit_code == 0 { | ||
| Ok(RetValue::default()) | ||
| } else { | ||
| Err(FuncCallError::get_with_context(stringify!(#fn_names).to_string())) | ||
| } | ||
| } | ||
| )* | ||
| }; | ||
|
|
||
| proc_macro::TokenStream::from(fns) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.