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go-fuzz-build: load reflect when using libfuzzer #243

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Merged
merged 1 commit into from
May 10, 2019
Merged

go-fuzz-build: load reflect when using libfuzzer #243

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10 changes: 9 additions & 1 deletion go-fuzz-build/main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -251,7 +251,15 @@ func (c *Context) loadPkg(pkg string) {
cfg.ParseFile = func(fset *token.FileSet, filename string, src []byte) (*ast.File, error) {
return parser.ParseFile(fset, filename, src, parser.ParseComments)
}
initial, err := packages.Load(cfg, pkg, "github.com/dvyukov/go-fuzz/go-fuzz-dep")
// We need to load:
// * the target package, obviously
// * go-fuzz-dep, since we use it for instrumentation
// * reflect, if we are using libfuzzer, since its generated main function requires it
loadpkgs := []string{pkg, "github.com/dvyukov/go-fuzz/go-fuzz-dep"}
if *flagLibFuzzer {
loadpkgs = append(loadpkgs, "reflect")
}
initial, err := packages.Load(cfg, loadpkgs...)
if err != nil {
c.failf("could not load packages: %v", err)
}
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