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newt: Add pkg.ign_pkgs to skip certain packages when linking #493

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newt: Add pkg.ign_pkgs to skip certain packages when linking #493

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27 changes: 21 additions & 6 deletions newt/builder/build.go
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ import (
"os"
"path/filepath"
"runtime"
"strings"

log "github.com/sirupsen/logrus"

Expand Down Expand Up @@ -416,18 +417,32 @@ func (b *Builder) link(elfName string, linkerScripts []string,
if err != nil {
return err
}
c.AddInfo(&toolchain.CompilerInfo{Lflags: ci.Lflags})
c.AddInfo(&toolchain.CompilerInfo{
Lflags: ci.Lflags, IgnorePkgs: ci.IgnorePkgs})
}
dirs = append(dirs, extraADirs...)

// Find all .a files in the input directories.
// Find all .a files in the input directories for all non-ignored packages
ignorePkgs := c.GetCompilerInfo().IgnorePkgs
trimmedANames := []string{}
for _, dir := range dirs {
fullANames, _ := filepath.Glob(dir + "/*.a")
for i, archiveName := range fullANames {
fullANames[i] = filepath.ToSlash(archiveName)
ignoreThisPkg := false
for i, ignorePkg := range ignorePkgs {
if strings.HasSuffix(dir, ignorePkg.String()) {
// Pop the ignore package to speed up subsequent checks.
// Assumes no duplicate packages.
ignorePkgs[i] = ignorePkgs[len(ignorePkgs)-1]
ignorePkgs = ignorePkgs[:len(ignorePkgs)-1]
ignoreThisPkg = true
}
}
if !ignoreThisPkg {
fullANames, _ := filepath.Glob(dir + "/*.a")
for i, archiveName := range fullANames {
fullANames[i] = filepath.ToSlash(archiveName)
}
trimmedANames = append(trimmedANames, fullANames...)
}
trimmedANames = append(trimmedANames, fullANames...)
}

c.LinkerScripts = linkerScripts
Expand Down
15 changes: 15 additions & 0 deletions newt/builder/buildpackage.go
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Original file line number Diff line number Diff line change
Expand Up @@ -198,6 +198,21 @@ func (bpkg *BuildPackage) CompilerInfo(
ci.IgnoreDirs = append(ci.IgnoreDirs, re)
}

ci.IgnorePkgs = []*regexp.Regexp{}

ignPkgs, err := bpkg.rpkg.Lpkg.PkgY.GetValStringSlice(
"pkg.ign_pkgs", settings)
util.OneTimeWarningError(err)

for _, str := range ignPkgs {
re, err := regexp.Compile(str)
if err != nil {
return nil, util.NewNewtError(
"Ignore pkgs, unable to compile re: " + err.Error())
}
ci.IgnorePkgs = append(ci.IgnorePkgs, re)
}

bpkg.SourceDirectories, err = bpkg.rpkg.Lpkg.PkgY.GetValStringSlice(
"pkg.src_dirs", settings)
util.OneTimeWarningError(err)
Expand Down
3 changes: 3 additions & 0 deletions newt/toolchain/compiler.go
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Original file line number Diff line number Diff line change
Expand Up @@ -59,6 +59,7 @@ type CompilerInfo struct {
Aflags []string
IgnoreFiles []*regexp.Regexp
IgnoreDirs []*regexp.Regexp
IgnorePkgs []*regexp.Regexp
}

type CompileCommand struct {
Expand Down Expand Up @@ -166,6 +167,7 @@ func NewCompilerInfo() *CompilerInfo {
ci.Aflags = []string{}
ci.IgnoreFiles = []*regexp.Regexp{}
ci.IgnoreDirs = []*regexp.Regexp{}
ci.IgnorePkgs = []*regexp.Regexp{}

return ci
}
Expand Down Expand Up @@ -246,6 +248,7 @@ func (ci *CompilerInfo) AddCompilerInfo(newCi *CompilerInfo) {
ci.Aflags = addFlags("aflag", ci.Aflags, newCi.Aflags)
ci.IgnoreFiles = append(ci.IgnoreFiles, newCi.IgnoreFiles...)
ci.IgnoreDirs = append(ci.IgnoreDirs, newCi.IgnoreDirs...)
ci.IgnorePkgs = append(ci.IgnorePkgs, newCi.IgnorePkgs...)
}

func NewCompiler(compilerDir string, dstDir string,
Expand Down