cgo: refactor; support multiple cgo files in a single package

This is a big commit that does a few things:

  * It moves CGo processing into a separate package. It never really
    belonged in the loader package, and certainly not now that the
    loader package may be refactored into a driver package.
  * It adds support for multiple CGo files (files that import package
    "C") in a single package. Previously, this led to multiple
    definition errors in the Go typecheck phase because certain C
    symbols were defined multiple times in all the files. Now it
    generates a new fake AST that defines these, to avoid multiple
    definition errors.
  * It improves debug info in a few edge cases that are probably not
    relevant outside of bugs in cgo itself.
This commit is contained in:
Ayke van Laethem
2019-05-10 19:48:33 +02:00
committed by Ron Evans
parent 4619207f99
commit 11567c62d4
8 changed files with 320 additions and 244 deletions
+11
View File
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// +build !byollvm
package cgo
/*
#cgo linux CFLAGS: -I/usr/lib/llvm-8/include
#cgo darwin CFLAGS: -I/usr/local/opt/llvm/include
#cgo linux LDFLAGS: -L/usr/lib/llvm-8/lib -lclang
#cgo darwin LDFLAGS: -L/usr/local/opt/llvm/lib -lclang -lffi
*/
import "C"