What build errors is this addressing and how can they be observed?
Alex
On Mon, 28 Nov 2022 at 21:46, Ryan Eatmon via lists.openembedded.org
<reatmon=ti....@lists.openembedded.org> wrote:
>
> The previous version of this patch was a little too zealous in
> cleaning up the envvironment. Some of the variable impacted
> by the filerCompilerFlags() function require at least one
> value to remain in the array. In this case, the values for
> ccExe, cxxExe, and fcExe require a value or it results in
> a panic related to accessing a value out of range.
>
> The updated patch adds a flag that requires keeping the first
> value so that at least one thing remains and the assignments
> for the Exes set that flag to true. The first item in the
> array should be the compiler name anyway so it should remain.
>
> Signed-off-by: Ryan Eatmon <reat...@ti.com>
> ---
> ...ent-based-hash-generation-less-pedan.patch | 30 ++++++++++---------
> 1 file changed, 16 insertions(+), 14 deletions(-)
>
> diff --git
> a/meta/recipes-devtools/go/go/0001-cmd-go-make-content-based-hash-generation-less-pedan.patch
>
> b/meta/recipes-devtools/go/go/0001-cmd-go-make-content-based-hash-generation-less-pedan.patch
> index 17fa9d9831..43be5cd2e8 100644
> ---
> a/meta/recipes-devtools/go/go/0001-cmd-go-make-content-based-hash-generation-less-pedan.patch
> +++
> b/meta/recipes-devtools/go/go/0001-cmd-go-make-content-based-hash-generation-less-pedan.patch
> @@ -74,7 +74,7 @@ index c88b315..a06455c 100644
> + cppflags, cflags, cxxflags, fflags, ldflags, _ := b.CFlags(p,
> true)
>
> - ccExe := b.ccExe()
> -+ ccExe := filterCompilerFlags(b.ccExe())
> ++ ccExe := filterCompilerFlags(b.ccExe(), true)
> fmt.Fprintf(h, "CC=%q %q %q %q\n", ccExe, cppflags, cflags,
> ldflags)
> // Include the C compiler tool ID so that if the C
> // compiler changes we rebuild the package.
> @@ -83,7 +83,7 @@ index c88b315..a06455c 100644
> }
> if len(p.CXXFiles)+len(p.SwigCXXFiles) > 0 {
> - cxxExe := b.cxxExe()
> -+ cxxExe := filterCompilerFlags(b.cxxExe())
> ++ cxxExe := filterCompilerFlags(b.cxxExe(), true)
> fmt.Fprintf(h, "CXX=%q %q\n", cxxExe, cxxflags)
> if cxxID, err := b.gccToolID(cxxExe[0], "c++"); err
> == nil {
> fmt.Fprintf(h, "CXX ID=%q\n", cxxID)
> @@ -91,7 +91,7 @@ index c88b315..a06455c 100644
> }
> if len(p.FFiles) > 0 {
> - fcExe := b.fcExe()
> -+ fcExe := filterCompilerFlags(b.fcExe())
> ++ fcExe := filterCompilerFlags(b.fcExe(), true)
> fmt.Fprintf(h, "FC=%q %q\n", fcExe, fflags)
> if fcID, err := b.gccToolID(fcExe[0], "f95"); err ==
> nil {
> fmt.Fprintf(h, "FC ID=%q\n", fcID)
> @@ -104,20 +104,22 @@ index c88b315..a06455c 100644
> }
>
> // Configuration specific to compiler toolchain.
> -@@ -2705,8 +2707,23 @@ func envList(key, def string) []string {
> +@@ -2705,8 +2707,25 @@ func envList(key, def string) []string {
> return args
> }
>
> +var filterFlags = os.Getenv("CGO_PEDANTIC") == ""
> +
> -+func filterCompilerFlags(flags []string) []string {
> ++func filterCompilerFlags(flags []string, keepfirst bool) []string {
> + var newflags []string
> ++ var realkeepfirst bool = keepfirst
> + if !filterFlags {
> + return flags
> + }
> + for _, flag := range flags {
> -+ if strings.HasPrefix(flag, "-m") {
> ++ if strings.HasPrefix(flag, "-m") || realkeepfirst {
> + newflags = append(newflags, flag)
> ++ realkeepfirst = false
> + }
> + }
> + return newflags
> @@ -129,21 +131,21 @@ index c88b315..a06455c 100644
> defaults := "-g -O2"
>
> if cppflags, err = buildFlags("CPPFLAGS", "", p.CgoCPPFLAGS,
> checkCompilerFlags); err != nil {
> -@@ -2724,6 +2741,13 @@ func (b *Builder) CFlags(p *load.Package) (cppflags,
> cflags, cxxflags, fflags, l
> +@@ -2724,6 +2743,13 @@ func (b *Builder) CFlags(p *load.Package) (cppflags,
> cflags, cxxflags, fflags, l
> if ldflags, err = buildFlags("LDFLAGS", defaults, p.CgoLDFLAGS,
> checkLinkerFlags); err != nil {
> return
> }
> + if filtered {
> -+ cppflags = filterCompilerFlags(cppflags)
> -+ cflags = filterCompilerFlags(cflags)
> -+ cxxflags = filterCompilerFlags(cxxflags)
> -+ fflags = filterCompilerFlags(fflags)
> -+ ldflags = filterCompilerFlags(ldflags)
> ++ cppflags = filterCompilerFlags(cppflags, false)
> ++ cflags = filterCompilerFlags(cflags, false)
> ++ cxxflags = filterCompilerFlags(cxxflags, false)
> ++ fflags = filterCompilerFlags(fflags, false)
> ++ ldflags = filterCompilerFlags(ldflags, false)
> + }
>
> return
> }
> -@@ -2739,7 +2763,7 @@ var cgoRe = lazyregexp.New(`[/\\:]`)
> +@@ -2739,7 +2765,7 @@ var cgoRe = lazyregexp.New(`[/\\:]`)
>
> func (b *Builder) cgo(a *Action, cgoExe, objdir string, pcCFLAGS,
> pcLDFLAGS, cgofiles, gccfiles, gxxfiles, mfiles, ffiles []string) (outGo,
> outObj []string, err error) {
> p := a.Package
> @@ -152,7 +154,7 @@ index c88b315..a06455c 100644
> if err != nil {
> return nil, nil, err
> }
> -@@ -3246,7 +3270,7 @@ func (b *Builder) swigIntSize(objdir string) (intsize
> string, err error) {
> +@@ -3246,7 +3272,7 @@ func (b *Builder) swigIntSize(objdir string) (intsize
> string, err error) {
>
> // Run SWIG on one SWIG input file.
> func (b *Builder) swigOne(a *Action, p *load.Package, file, objdir string,
> pcCFLAGS []string, cxx bool, intgosize string) (outGo, outC string, err
> error) {
> --
> 2.17.1
>
>
>
>
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