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Commit b06a4bd4 authored by Treehugger Robot's avatar Treehugger Robot Committed by Gerrit Code Review
Browse files

Merge "Transform paths to headers in include dirs to take package boundaries into account."

parents 638830a5 c143cc50

android/bazel.go

+19 −23
Original line number Diff line number Diff line
@@ -129,6 +129,7 @@ var ( 
	// Configure modules in these directories to enable bp2build_available: true or false by default.

	bp2buildDefaultConfig = Bp2BuildConfig{

		"bionic":                Bp2BuildDefaultTrueRecursively,

		"external/gwp_asan":     Bp2BuildDefaultTrueRecursively,

		"system/core/libcutils": Bp2BuildDefaultTrueRecursively,

		"system/logging/liblog": Bp2BuildDefaultTrueRecursively,

	}
@@ -138,32 +139,25 @@ var ( 
		"libBionicBenchmarksUtils",      // ruperts@, cc_library_static, 'map' file not found

		"libbionic_spawn_benchmark",     // ruperts@, cc_library_static, depends on //system/libbase

		"libc_jemalloc_wrapper",         // ruperts@, cc_library_static, depends on //external/jemalloc_new

		"libc_bootstrap",                // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_init_static",              // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_init_dynamic",             // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_tzcode",                   // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_freebsd",                  // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_freebsd_large_stack",      // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_netbsd",                   // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_openbsd_ndk",              // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_openbsd_large_stack",      // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_openbsd",                  // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_gdtoa",                    // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_fortify",                  // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_bionic",                   // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_bootstrap",                // ruperts@, cc_library_static, 'private/bionic_auxv.h' file not found

		"libc_init_static",              // ruperts@, cc_library_static, 'private/bionic_elf_tls.h' file not found

		"libc_init_dynamic",             // ruperts@, cc_library_static, 'private/bionic_defs.h' file not found

		"libc_tzcode",                   // ruperts@, cc_library_static, error: expected expression

		"libc_netbsd",                   // ruperts@, cc_library_static, 'engine.c' file not found

		"libc_openbsd_large_stack",      // ruperts@, cc_library_static, 'android/log.h' file not found

		"libc_openbsd",                  // ruperts@, cc_library_static, 'android/log.h' file not found

		"libc_fortify",                  // ruperts@, cc_library_static, 'private/bionic_fortify.h' file not found

		"libc_bionic",                   // ruperts@, cc_library_static, 'private/bionic_asm.h' file not found

		"libc_bionic_ndk",               // ruperts@, cc_library_static, depends on //bionic/libc/system_properties

		"libc_bionic_systrace",          // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_pthread",                  // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_bionic_systrace",          // ruperts@, cc_library_static, 'private/bionic_systrace.h' file not found

		"libc_pthread",                  // ruperts@, cc_library_static, 'private/bionic_defs.h' file not found

		"libc_syscalls",                 // ruperts@, cc_library_static, mutator panic cannot get direct dep syscalls-arm64.S of libc_syscalls

		"libc_aeabi",                    // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_ndk",                      // ruperts@, cc_library_static, depends on //bionic/libm:libm

		"libc_nopthread",                // ruperts@, cc_library_static, depends on //external/arm-optimized-routines

		"libc_common",                   // ruperts@, cc_library_static, depends on //bionic/libc:libc_nopthread

		"libc_static_dispatch",          // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_dynamic_dispatch",         // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_common_static",            // ruperts@, cc_library_static, depends on //bionic/libc:libc_common

		"libc_common_shared",            // ruperts@, cc_library_static, depends on //bionic/libc:libc_common

		"libc_unwind_static",            // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage

		"libc_unwind_static",            // ruperts@, cc_library_static, 'private/bionic_elf_tls.h' file not found

		"libc_nomalloc",                 // ruperts@, cc_library_static, depends on //bionic/libc:libc_common

		"libasync_safe",                 // ruperts@, cc_library_static, 'private/CachedProperty.h' file not found

		"libc_malloc_debug_backtrace",   // ruperts@, cc_library_static, depends on //system/libbase
@@ -173,10 +167,7 @@ var ( 
		"liblinker_malloc",              // ruperts@, cc_library_static, depends on //system/logging/liblog:liblog

		"liblinker_debuggerd_stub",      // ruperts@, cc_library_static, depends on //system/libbase

		"libbionic_tests_headers_posix", // ruperts@, cc_library_static, 'complex.h' file not found

		"libc_dns",                      // ruperts@, cc_library_static, 'bionic/libc/async_safe' is a subpackage



		"note_memtag_heap_async", // jingwen@, b/185079815, features.h includes not found

		"note_memtag_heap_sync",  // jingwen@, b/185079815, features.h includes not found

		"libc_dns",                      // ruperts@, cc_library_static, 'android/log.h' file not found



		// List of all full_cc_libraries in //bionic, with their immediate failures

		"libc",              // jingwen@, cc_library, depends on //external/gwp_asan
@@ -186,6 +177,11 @@ var ( 
		"libm",              // jingwen@, cc_library, fatal error: 'freebsd-compat.h' file not found

		"libseccomp_policy", // jingwen@, cc_library, fatal error: 'seccomp_policy.h' file not found

		"libstdc++",         // jingwen@, cc_library, depends on //external/gwp_asan



		// For mixed builds specifically

		"note_memtag_heap_async", // jingwen@, cc_library_static, OK for bp2build but features.h includes not found for mixed builds (b/185079815)

		"note_memtag_heap_sync",  // jingwen@, cc_library_static, OK for bp2build but features.h includes not found for mixed builds (b/185079815)

		"libc_gdtoa",             // ruperts@, cc_library_static, OK for bp2build but undefined symbol: __strtorQ for mixed builds

	}



	// Used for quicker lookups

android/paths.go

+88 −0
Original line number Diff line number Diff line
@@ -417,6 +417,93 @@ func BazelLabelForModuleDeps(ctx BazelConversionPathContext, modules []string) b 
	return labels

}



// Returns true if a prefix + components[:i] + /Android.bp exists

// TODO(b/185358476) Could check for BUILD file instead of checking for Android.bp file, or ensure BUILD is always generated?

func directoryHasBlueprint(fs pathtools.FileSystem, prefix string, components []string, componentIndex int) bool {

	blueprintPath := prefix

	if blueprintPath != "" {

		blueprintPath = blueprintPath + "/"

	}

	blueprintPath = blueprintPath + strings.Join(components[:componentIndex+1], "/")

	blueprintPath = blueprintPath + "/Android.bp"

	if exists, _, _ := fs.Exists(blueprintPath); exists {

		return true

	} else {

		return false

	}

}



// Transform a path (if necessary) to acknowledge package boundaries

//

// e.g. something like

//   async_safe/include/async_safe/CHECK.h

// might become

//   //bionic/libc/async_safe:include/async_safe/CHECK.h

// if the "async_safe" directory is actually a package and not just a directory.

//

// In particular, paths that extend into packages are transformed into absolute labels beginning with //.

func transformSubpackagePath(ctx BazelConversionPathContext, path bazel.Label) bazel.Label {

	var newPath bazel.Label



	// Don't transform Bp_text

	newPath.Bp_text = path.Bp_text



	if strings.HasPrefix(path.Label, "//") {

		// Assume absolute labels are already correct (e.g. //path/to/some/package:foo.h)

		newPath.Label = path.Label

		return newPath

	}



	newLabel := ""

	pathComponents := strings.Split(path.Label, "/")

	foundBlueprint := false

	// Check the deepest subdirectory first and work upwards

	for i := len(pathComponents) - 1; i >= 0; i-- {

		pathComponent := pathComponents[i]

		var sep string

		if !foundBlueprint && directoryHasBlueprint(ctx.Config().fs, ctx.ModuleDir(), pathComponents, i) {

			sep = ":"

			foundBlueprint = true

		} else {

			sep = "/"

		}

		if newLabel == "" {

			newLabel = pathComponent

		} else {

			newLabel = pathComponent + sep + newLabel

		}

	}

	if foundBlueprint {

		// Ensure paths end up looking like //bionic/... instead of //./bionic/...

		moduleDir := ctx.ModuleDir()

		if strings.HasPrefix(moduleDir, ".") {

			moduleDir = moduleDir[1:]

		}

		// Make the path into an absolute label (e.g. //bionic/libc/foo:bar.h instead of just foo:bar.h)

		if moduleDir == "" {

			newLabel = "//" + newLabel

		} else {

			newLabel = "//" + moduleDir + "/" + newLabel

		}

	}

	newPath.Label = newLabel



	return newPath

}



// Transform paths to acknowledge package boundaries

// See transformSubpackagePath() for more information

func transformSubpackagePaths(ctx BazelConversionPathContext, paths bazel.LabelList) bazel.LabelList {

	var newPaths bazel.LabelList

	for _, include := range paths.Includes {

		newPaths.Includes = append(newPaths.Includes, transformSubpackagePath(ctx, include))

	}

	for _, exclude := range paths.Excludes {

		newPaths.Excludes = append(newPaths.Excludes, transformSubpackagePath(ctx, exclude))

	}

	return newPaths

}



// BazelLabelForModuleSrc returns bazel.LabelList with paths rooted from the module's local source

// directory. It expands globs, and resolves references to modules using the ":name" syntax to

// bazel-compatible labels.  Properties passed as the paths or excludes argument must have been
@@ -446,6 +533,7 @@ func BazelLabelForModuleSrcExcludes(ctx BazelConversionPathContext, paths, exclu 
	}

	labels := expandSrcsForBazel(ctx, paths, excluded)

	labels.Excludes = excludeLabels.Includes

	labels = transformSubpackagePaths(ctx, labels)

	return labels

}

bp2build/cc_library_static_conversion_test.go

+47 −0
Original line number Diff line number Diff line
@@ -277,6 +277,53 @@ cc_library_static { 
        "implicit_include_1.h",

        "implicit_include_2.h",

    ],

)`},

		},

		{

			description:                        "cc_library_static subpackage test",

			moduleTypeUnderTest:                "cc_library_static",

			moduleTypeUnderTestFactory:         cc.LibraryStaticFactory,

			moduleTypeUnderTestBp2BuildMutator: cc.CcLibraryStaticBp2Build,

			filesystem: map[string]string{

				// subpackage with subdirectory

				"subpackage/Android.bp":                         "",

				"subpackage/subpackage_header.h":                "",

				"subpackage/subdirectory/subdirectory_header.h": "",

				// subsubpackage with subdirectory

				"subpackage/subsubpackage/Android.bp":                         "",

				"subpackage/subsubpackage/subsubpackage_header.h":             "",

				"subpackage/subsubpackage/subdirectory/subdirectory_header.h": "",

				// subsubsubpackage with subdirectory

				"subpackage/subsubpackage/subsubsubpackage/Android.bp":                         "",

				"subpackage/subsubpackage/subsubsubpackage/subsubsubpackage_header.h":          "",

				"subpackage/subsubpackage/subsubsubpackage/subdirectory/subdirectory_header.h": "",

			},

			bp: soongCcLibraryStaticPreamble + `

cc_library_static {

    name: "foo_static",

    srcs: [

    ],

    include_dirs: [

	"subpackage",

    ],



    bazel_module: { bp2build_available: true },

}`,

			expectedBazelTargets: []string{`cc_library_static(

    name = "foo_static",

    includes = [

        "subpackage",

        ".",

    ],

    linkstatic = True,

    srcs = [

        "//subpackage:subpackage_header.h",

        "//subpackage:subdirectory/subdirectory_header.h",

        "//subpackage/subsubpackage:subsubpackage_header.h",

        "//subpackage/subsubpackage:subdirectory/subdirectory_header.h",

        "//subpackage/subsubpackage/subsubsubpackage:subsubsubpackage_header.h",

        "//subpackage/subsubpackage/subsubsubpackage:subdirectory/subdirectory_header.h",

    ],

)`},

		},

	}