Calculate precompiled core path usign also build optimization flags

legacy/builder/builder_utils/utils.go

@@ -519,20 +519,3 @@ func PrepareCommandForRecipe(ctx *types.Context, buildProperties *properties.Map
 
 	return command, nil
 }
-
-// GetCachedCoreArchiveFileName returns the filename to be used to store
-// the global cached core.a.
-func GetCachedCoreArchiveFileName(fqbn string, coreFolder *paths.Path) string {
-	fqbnToUnderscore := strings.Replace(fqbn, ":", "_", -1)
-	fqbnToUnderscore = strings.Replace(fqbnToUnderscore, "=", "_", -1)
-	if absCoreFolder, err := coreFolder.Abs(); err == nil {
-		coreFolder = absCoreFolder
-	} // silently continue if absolute path can't be detected
-	hash := utils.MD5Sum([]byte(coreFolder.String()))
-	realName := "core_" + fqbnToUnderscore + "_" + hash + ".a"
-	if len(realName) > 100 {
-		// avoid really long names, simply hash the final part
-		realName = "core_" + utils.MD5Sum([]byte(fqbnToUnderscore+"_"+hash)) + ".a"
-	}
-	return realName
-}

legacy/builder/phases/core_builder.go

@@ -17,6 +17,7 @@ package phases
 
 import (
 	"os"
+	"strings"
 
 	"github.com/arduino/arduino-cli/legacy/builder/builder_utils"
 	"github.com/arduino/arduino-cli/legacy/builder/constants"
@@ -90,7 +91,8 @@ func compileCore(ctx *types.Context, buildPath *paths.Path, buildCachePath *path
 
 	var targetArchivedCore *paths.Path
 	if buildCachePath != nil {
-		archivedCoreName := builder_utils.GetCachedCoreArchiveFileName(buildProperties.Get(constants.BUILD_PROPERTIES_FQBN), realCoreFolder)
+		archivedCoreName := getCachedCoreArchiveFileName(buildProperties.Get(constants.BUILD_PROPERTIES_FQBN),
+			buildProperties.Get("compiler.optimization_flags"), realCoreFolder)
 		targetArchivedCore = buildCachePath.Join(archivedCoreName)
 		canUseArchivedCore := !builder_utils.CoreOrReferencedCoreHasChanged(realCoreFolder, targetCoreFolder, targetArchivedCore)
 
@@ -129,3 +131,20 @@ func compileCore(ctx *types.Context, buildPath *paths.Path, buildCachePath *path
 
 	return archiveFile, variantObjectFiles, nil
 }
+
+// GetCachedCoreArchiveFileName returns the filename to be used to store
+// the global cached core.a.
+func getCachedCoreArchiveFileName(fqbn string, optimizationFlags string, coreFolder *paths.Path) string {
+	fqbnToUnderscore := strings.Replace(fqbn, ":", "_", -1)
+	fqbnToUnderscore = strings.Replace(fqbnToUnderscore, "=", "_", -1)
+	if absCoreFolder, err := coreFolder.Abs(); err == nil {
+		coreFolder = absCoreFolder
+	} // silently continue if absolute path can't be detected
+	hash := utils.MD5Sum([]byte(coreFolder.String() + optimizationFlags))
+	realName := "core_" + fqbnToUnderscore + "_" + hash + ".a"
+	if len(realName) > 100 {
+		// avoid really long names, simply hash the final part
+		realName = "core_" + utils.MD5Sum([]byte(fqbnToUnderscore+"_"+hash)) + ".a"
+	}
+	return realName
+}