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Do not hardcode default/experimental c{pp}std

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Prevent bugs like b/232866078 by using the same values across Bazel and
Soong

Test: bp2build.sh
Change-Id: If257f9f5f8e8a70bbf3a8cf5479758c703c25c3f
This commit is contained in:
Liz Kammer
2022-05-25 23:19:37 -04:00
parent 78ce8c23de
commit a5a29de677
4 changed files with 93 additions and 80 deletions
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39
cc/bp2build.go
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@@ -429,32 +429,33 @@ func parseSrcs(ctx android.BazelConversionPathContext, props *BaseCompilerProper
return bazel.AppendBazelLabelLists(allSrcsLabelList, generatedSrcsLabelList), anySrcs
}
func bp2buildResolveCppStdValue(c_std *string, cpp_std *string, gnu_extensions *bool) (*string, *string) {
var cStdVal, cppStdVal string
func bp2buildStdVal(std *string, prefix string, useGnu bool) *string {
defaultVal := prefix + "_std_default"
// If c{,pp}std properties are not specified, don't generate them in the BUILD file.
// Defaults are handled by the toolchain definition.
// However, if gnu_extensions is false, then the default gnu-to-c version must be specified.
if cpp_std != nil {
cppStdVal = parseCppStd(cpp_std)
} else if gnu_extensions != nil && !*gnu_extensions {
cppStdVal = "c++17"
}
if c_std != nil {
cStdVal = parseCStd(c_std)
} else if gnu_extensions != nil && !*gnu_extensions {
cStdVal = "c99"
stdVal := proptools.StringDefault(std, defaultVal)
if stdVal == "experimental" || stdVal == defaultVal {
if stdVal == "experimental" {
stdVal = prefix + "_std_experimental"
}
if !useGnu {
stdVal += "_no_gnu"
}
} else if !useGnu {
stdVal = gnuToCReplacer.Replace(stdVal)
}
cStdVal, cppStdVal = maybeReplaceGnuToC(gnu_extensions, cStdVal, cppStdVal)
var c_std_prop, cpp_std_prop *string
if cStdVal != "" {
c_std_prop = &cStdVal
}
if cppStdVal != "" {
cpp_std_prop = &cppStdVal
if stdVal == defaultVal {
return nil
}
return &stdVal
}
return c_std_prop, cpp_std_prop
func bp2buildResolveCppStdValue(c_std *string, cpp_std *string, gnu_extensions *bool) (*string, *string) {
useGnu := useGnuExtensions(gnu_extensions)
return bp2buildStdVal(c_std, "c", useGnu), bp2buildStdVal(cpp_std, "cpp", useGnu)
}
// packageFromLabel extracts package from a fully-qualified or relative Label and whether the label