tinygo/builder/lld.cpp
Ayke van Laethem 8e6cb89ceb main: refactor compile/link part to a builder package
This is a large commit that moves all code directly related to
compiling/linking into a new builder package. This has a number of
advantages:

  * It cleanly separates the API between the command line and the full
    compilation (with a very small API surface).
  * When the compiler finally compiles one package at a time (instead of
    everything at once as it does now), something will have to invoke it
    once per package. This builder package will be the natural place to
    do that, and also be the place where the whole process can be
    parallelized.
  * It allows the TinyGo compiler to be used as a package. A client can
    simply import the builder package and compile code using it.

As part of this refactor, the following additional things changed:

  * Exported symbols have been made unexported when they weren't needed.
  * The compilation target has been moved into the compileopts.Options
    struct. This is done because the target really is just another
    compiler option, and the API is simplified by moving it in there.
  * The moveFile function has been duplicated. It does not really belong
    in the builder API but is used both by the builder and the command
    line. Moving it into a separate package didn't seem useful either
    for what is essentially an utility function.
  * Some doc strings have been improved.

Some future changes/refactors I'd like to make after this commit:

  * Clean up the API between the builder and the compiler package.
  * Perhaps move the test files (in testdata/) into the builder package.
  * Perhaps move the loader package into the builder package.
2019-11-11 20:53:50 +01:00

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C++

// +build byollvm
// This file provides C wrappers for liblld.
#include <lld/Common/Driver.h>
extern "C" {
bool tinygo_link_elf(int argc, char **argv) {
std::vector<const char*> args(argv, argv + argc);
return lld::elf::link(args, false);
}
bool tinygo_link_wasm(int argc, char **argv) {
std::vector<const char*> args(argv, argv + argc);
return lld::wasm::link(args, false);
}
} // external "C"