path: root/pkgs/os-specific/linux/chromium-os/modp_b64/0001-modp_b64-Fix-GN-build-and-add-fuzzers.patch

From 832ee65ffff7353e88bf622e2d14e22e991ce698 Mon Sep 17 00:00:00 2001
From: Manoj Gupta <manojgupta@google.com>
Date: Wed, 9 Oct 2019 12:40:18 -0700
Subject: [PATCH 1/2] modp_b64: Fix GN build and add fuzzers.

modp_b64 is currently build with Makefile.
Fix the BUILD.gn so that it can be used and remove
Makefile usage.
Also add two fuzzers for encode and decode routines.

BUG=chromium:1012803
TEST=GN build work with modified ebuild.

Cq-Depend: chromium:1850664
Change-Id: I1756237d91630ea7e18e7c3ed055d2b3b532de0d
---
 BUILD.gn                          |  53 +-
 Makefile                          |  20 -
 OWNERS.fuzzer                     |   1 +
 common.mk                         | 941 ------------------------------
 fuzzers/modp_b64_decode_fuzzer.cc |  17 +
 fuzzers/modp_b64_encode_fuzzer.cc |  17 +
 6 files changed, 84 insertions(+), 965 deletions(-)
 delete mode 100644 Makefile
 create mode 100644 OWNERS.fuzzer
 delete mode 100644 common.mk
 create mode 100644 fuzzers/modp_b64_decode_fuzzer.cc
 create mode 100644 fuzzers/modp_b64_encode_fuzzer.cc

diff --git a/BUILD.gn b/BUILD.gn
index cd322ac..b2fe97d 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -1,15 +1,60 @@
-# Copyright (c) 2013 The Chromium Authors. All rights reserved.
+# Copyright 2013 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
-source_set("modp_b64") {
+group("all") {
+  deps = [
+    ":modp_b64",
+  ]
+
+  if (use.fuzzer) {
+    deps += [
+      ":modp_b64_decode_fuzzer",
+      ":modp_b64_encode_fuzzer",
+    ]
+  }
+}
+
+static_library("modp_b64") {
   sources = [
     "modp_b64.cc",
     "modp_b64.h",
     "modp_b64_data.h",
   ]
-
   include_dirs = [
-    "./modp_b64",
+    "modp_b64",
   ]
 }
+
+# Fuzzers.
+if (use.fuzzer) {
+  executable("modp_b64_decode_fuzzer") {
+    configs += [
+      "//common-mk/common_fuzzer",
+    ]
+    deps = [
+      ":modp_b64",
+    ]
+    sources = [
+      "fuzzers/modp_b64_decode_fuzzer.cc",
+    ]
+    include_dirs = [
+      "modp_b64",
+    ]
+  }
+
+  executable("modp_b64_encode_fuzzer") {
+    configs += [
+      "//common-mk/common_fuzzer",
+    ]
+    deps = [
+      ":modp_b64",
+    ]
+    sources = [
+      "fuzzers/modp_b64_encode_fuzzer.cc",
+    ]
+    include_dirs = [
+      "modp_b64",
+    ]
+  }
+}
diff --git a/Makefile b/Makefile
deleted file mode 100644
index c33ff75..0000000
--- a/Makefile
+++ /dev/null
@@ -1,20 +0,0 @@
-# Copyright (C) 2015 The Android Open Source Project
-#
-# Licensed under the Apache License, Version 2.0 (the "License");
-# you may not use this file except in compliance with the License.
-# You may obtain a copy of the License at
-#
-#      http://www.apache.org/licenses/LICENSE-2.0
-#
-# Unless required by applicable law or agreed to in writing, software
-# distributed under the License is distributed on an "AS IS" BASIS,
-# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-# See the License for the specific language governing permissions and
-# limitations under the License.
-
-include common.mk
-
-CXXFLAGS += -I$(SRC)/modp_b64/
-CXX_STATIC_LIBRARY(libmodpb64.pie.a): $(CXX_OBJECTS)
-
-all: CXX_STATIC_LIBRARY(libmodpb64.pie.a)
diff --git a/OWNERS.fuzzer b/OWNERS.fuzzer
new file mode 100644
index 0000000..62800d6
--- /dev/null
+++ b/OWNERS.fuzzer
@@ -0,0 +1 @@
+manojgupta@chromium.org
diff --git a/common.mk b/common.mk
deleted file mode 100644
index 51ead56..0000000
--- a/common.mk
+++ /dev/null
@@ -1,941 +0,0 @@
-# copyright (c) 2012 the chromium os authors. all rights reserved.
-# use of this source code is governed by a bsd-style license that can be
-# found in the license file.
-#
-# If this file is part of another source distribution, it's license may be
-# stored in LICENSE.makefile or LICENSE.common.mk.
-#
-# NOTE NOTE NOTE
-#  The authoritative common.mk is located in:
-#    https://chromium.googlesource.com/chromiumos/platform2/+/master/common-mk
-#  Please make all changes there, then copy into place in other repos.
-# NOTE NOTE NOTE
-#
-# This file provides a common architecture for building C/C++ source trees.
-# It uses recursive makefile inclusion to create a single make process which
-# can be built in the source tree or with the build artifacts placed elsewhere.
-#
-# It is fully parallelizable for all targets, including static archives.
-#
-# To use:
-# 1. Place common.mk in your top source level
-# 2. In your top-level Makefile, place "include common.mk" at the top
-# 3. In all subdirectories, create a 'module.mk' file that starts with:
-#      include common.mk
-#    And then contains the remainder of your targets.
-# 4. All build targets should look like:
-#    relative/path/target: relative/path/obj.o
-#
-# See existing makefiles for rule examples.
-#
-# Exported macros:
-#   - cc_binary, cxx_binary provide standard compilation steps for binaries
-#   - cxx_library, cc_library provide standard compilation steps for
-#     shared objects.
-#   All of the above optionally take an argument for extra flags.
-#   - update_archive creates/updates a given .a target
-#
-# Instead of using the build macros, most users can just use wrapped targets:
-#   - CXX_BINARY, CC_BINARY, CC_STATIC_BINARY, CXX_STATIC_BINARY
-#   - CXX_LIBRARY, CC_LIBRARY, CC_STATIC_LIBRARY, CXX_STATIC_LIBRARY
-#   - E.g., CXX_BINARY(mahbinary): foo.o
-#   - object.depends targets may be used when a prerequisite is required for an
-#     object file. Because object files result in multiple build artifacts to
-#     handle PIC and PIE weirdness. E.g.
-#       foo.o.depends: generated/dbus.h
-#   - TEST(binary) or TEST(CXX_BINARY(binary)) may be used as a prerequisite
-#     for the tests target to trigger an automated test run.
-#   - CLEAN(file_or_dir) dependency can be added to 'clean'.
-#
-# If source code is being generated, rules will need to be registered for
-# compiling the objects.  This can be done by adding one of the following
-# to the Makefile:
-#   - For C source files
-#   $(eval $(call add_object_rules,sub/dir/gen_a.o sub/dir/b.o,CC,c,CFLAGS))
-#   - For C++ source files
-#   $(eval $(call add_object_rules,sub/dir/gen_a.o sub/dir/b.o,CXX,cc,CXXFLAGS))
-#
-# Exported targets meant to have prerequisites added to:
-#  - all - Your desired targets should be given
-#  - tests - Any TEST(test_binary) targets should be given
-#  - FORCE - force the given target to run regardless of changes
-#            In most cases, using .PHONY is preferred.
-#
-# Possible command line variables:
-#   - COLOR=[0|1] to set ANSI color output (default: 1)
-#   - VERBOSE=[0|1] to hide/show commands (default: 0)
-#   - MODE=[opt|dbg|profiling] (default: opt)
-#          opt - Enable optimizations for release builds
-#          dbg - Turn down optimization for debugging
-#          profiling - Turn off optimization and turn on profiling/coverage
-#                      support.
-#   - ARCH=[x86|arm|supported qemu name] (default: from portage or uname -m)
-#   - SPLITDEBUG=[0|1] splits debug info in target.debug (default: 0)
-#        If NOSTRIP=1, SPLITDEBUG will never strip the final emitted objects.
-#   - NOSTRIP=[0|1] determines if binaries are stripped. (default: 1)
-#        NOSTRIP=0 and MODE=opt will also drop -g from the CFLAGS.
-#   - VALGRIND=[0|1] runs tests under valgrind (default: 0)
-#   - OUT=/path/to/builddir puts all output in given path (default: $PWD)
-#   - VALGRIND_ARGS="" supplies extra memcheck arguments
-#
-# Per-target(-ish) variable:
-#   - NEEDS_ROOT=[0|1] allows a TEST() target to run with root.
-#     Default is 0 unless it is running under QEmu.
-#   - NEEDS_MOUNTS=[0|1] allows a TEST() target running on QEmu to get
-#     setup mounts in the $(SYSROOT)
-#
-# Caveats:
-# - Directories or files with spaces in them DO NOT get along with GNU Make.
-#   If you need them, all uses of dir/notdir/etc will need to have magic
-#   wrappers.  Proceed at risk to your own sanity.
-# - External CXXFLAGS and CFLAGS should be passed via the environment since
-#   this file does not use 'override' to control them.
-# - Our version of GNU Make doesn't seem to support the 'private' variable
-#   annotation, so you can't tag a variable private on a wrapping target.
-
-# Behavior configuration variables
-SPLITDEBUG ?= 0
-NOSTRIP ?= 1
-VALGRIND ?= 0
-COLOR ?= 1
-VERBOSE ?= 0
-MODE ?= opt
-CXXEXCEPTIONS ?= 0
-ARCH ?= $(shell uname -m)
-
-# Put objects in a separate tree based on makefile locations
-# This means you can build a tree without touching it:
-#   make -C $SRCDIR  # will create ./build-$(MODE)
-# Or
-#   make -C $SRCDIR OUT=$PWD
-# This variable is extended on subdir calls and doesn't need to be re-called.
-OUT ?= $(PWD)/
-
-# Make OUT now so we can use realpath.
-$(shell mkdir -p "$(OUT)")
-
-# TODO(wad) Relative paths are resolved against SRC and not the calling dir.
-# Ensure a command-line supplied OUT has a slash
-override OUT := $(realpath $(OUT))/
-
-# SRC is not meant to be set by the end user, but during make call relocation.
-# $(PWD) != $(CURDIR) all the time.
-export SRC ?= $(CURDIR)
-
-# If BASE_VER is not set, read the libchrome revision number from
-# common-mk/BASE_VER file.
-ifeq ($(strip $(BASE_VER)),)
-BASE_VER := $(shell cat $(SRC)/../common-mk/BASE_VER)
-endif
-$(info Using BASE_VER=$(BASE_VER))
-
-# Re-start in the $(OUT) directory if we're not there.
-# We may be invoked using -C or bare and we need to ensure behavior
-# is consistent so we check both PWD vs OUT and PWD vs CURDIR.
-override RELOCATE_BUILD := 0
-ifneq (${PWD}/,${OUT})
-override RELOCATE_BUILD := 1
-endif
-# Make sure we're running with no builtin targets. They cause
-# leakage and mayhem!
-ifneq (${PWD},${CURDIR})
-override RELOCATE_BUILD := 1
-# If we're run from the build dir, don't let it get cleaned up later.
-ifeq (${PWD}/,${OUT})
-$(shell touch "$(PWD)/.dont_delete_on_clean")
-endif
-endif  # ifneq (${PWD},${CURDIR}
-
-# "Relocate" if we need to restart without implicit rules.
-ifeq ($(subst r,,$(MAKEFLAGS)),$(MAKEFLAGS))
-override RELOCATE_BUILD := 1
-endif
-
-ifeq (${RELOCATE_BUILD},1)
-# By default, silence build output. Reused below as well.
-QUIET = @
-ifeq ($(VERBOSE),1)
-  QUIET=
-endif
-
-# This target will override all targets, including prerequisites. To avoid
-# calling $(MAKE) once per prereq on the given CMDGOAL, we guard it with a local
-# variable.
-RUN_ONCE := 0
-MAKECMDGOALS ?= all
-# Keep the rules split as newer make does not allow them to be declared
-# on the same line.  But the way :: rules work, the _all here will also
-# invoke the %:: rule while retaining "_all" as the default.
-_all::
-%::
-	$(if $(filter 0,$(RUN_ONCE)), \
-	  cd "$(OUT)" && \
-	  $(MAKE) -r -I "$(SRC)" -f "$(CURDIR)/Makefile" \
-	    SRC="$(CURDIR)" OUT="$(OUT)" $(foreach g,$(MAKECMDGOALS),"$(g)"),)
-	$(eval RUN_ONCE := 1)
-pass-to-subcall := 1
-endif
-
-ifeq ($(pass-to-subcall),)
-
-# Only call MODULE if we're in a submodule
-MODULES_LIST := $(filter-out Makefile %.d,$(MAKEFILE_LIST))
-ifeq ($(words $(filter-out Makefile common.mk %.d $(SRC)/Makefile \
-                           $(SRC)/common.mk,$(MAKEFILE_LIST))),0)
-
-# All the top-level defines outside of module.mk.
-
-#
-# Helper macros
-#
-
-# Create the directory if it doesn't yet exist.
-define auto_mkdir
-  $(if $(wildcard $(dir $1)),$2,$(QUIET)mkdir -p "$(dir $1)")
-endef
-
-# Creates the actual archive with an index.
-# The target $@ must end with .pic.a or .pie.a.
-define update_archive
-  $(call auto_mkdir,$(TARGET_OR_MEMBER))
-  $(QUIET)# Create the archive in one step to avoid parallel use accessing it
-  $(QUIET)# before all the symbols are present.
-  @$(ECHO) "AR		$(subst \
-$(SRC)/,,$(^:.o=$(suffix $(basename $(TARGET_OR_MEMBER))).o)) \
--> $(subst $(SRC)/,,$(TARGET_OR_MEMBER))"
-  $(QUIET)$(AR) rcs $(TARGET_OR_MEMBER) \
-          $(subst $(SRC)/,,$(^:.o=$(suffix $(basename $(TARGET_OR_MEMBER))).o))
-endef
-
-# Default compile from objects using pre-requisites but filters out
-# subdirs and .d files.
-define cc_binary
-  $(call COMPILE_BINARY_implementation,CC,$(CFLAGS) $(1),$(EXTRA_FLAGS))
-endef
-
-define cxx_binary
-  $(call COMPILE_BINARY_implementation,CXX,$(CXXFLAGS) $(1),$(EXTRA_FLAGS))
-endef
-
-# Default compile from objects using pre-requisites but filters out
-# subdirs and .d files.
-define cc_library
-  $(call COMPILE_LIBRARY_implementation,CC,$(CFLAGS) $(1),$(EXTRA_FLAGS))
-endef
-define cxx_library
-  $(call COMPILE_LIBRARY_implementation,CXX,$(CXXFLAGS) $(1),$(EXTRA_FLAGS))
-endef
-
-# Deletes files silently if they exist. Meant for use in any local
-# clean targets.
-define silent_rm
-  $(if $(wildcard $(1)),
-  $(QUIET)($(ECHO) -n '$(COLOR_RED)CLEANFILE$(COLOR_RESET)		' && \
-    $(ECHO) '$(subst $(OUT)/,,$(wildcard $(1)))' && \
-    $(RM) $(1) 2>/dev/null) || true,)
-endef
-define silent_rmdir
-  $(if $(wildcard $(1)),
-    $(if $(wildcard $(1)/*),
-  $(QUIET)# $(1) not empty [$(wildcard $(1)/*)]. Not deleting.,
-  $(QUIET)($(ECHO) -n '$(COLOR_RED)CLEANDIR$(COLOR_RESET)		' && \
-    $(ECHO) '$(subst $(OUT)/,,$(wildcard $(1)))' && \
-    $(RMDIR) $(1) 2>/dev/null) || true),)
-endef
-
-#
-# Default variable values
-#
-
-# Only override toolchain vars if they are from make.
-CROSS_COMPILE ?=
-define override_var
-ifneq ($(filter undefined default,$(origin $1)),)
-$1 = $(CROSS_COMPILE)$2
-endif
-endef
-$(eval $(call override_var,AR,ar))
-$(eval $(call override_var,CC,gcc))
-$(eval $(call override_var,CXX,g++))
-$(eval $(call override_var,OBJCOPY,objcopy))
-$(eval $(call override_var,PKG_CONFIG,pkg-config))
-$(eval $(call override_var,RANLIB,ranlib))
-$(eval $(call override_var,STRIP,strip))
-
-RMDIR ?= rmdir
-ECHO = /bin/echo -e
-
-ifeq ($(lastword $(subst /, ,$(CC))),clang)
-CDRIVER = clang
-else
-CDRIVER = gcc
-endif
-
-ifeq ($(lastword $(subst /, ,$(CXX))),clang++)
-CXXDRIVER = clang
-else
-CXXDRIVER = gcc
-endif
-
-# Internal macro to support check_XXX macros below.
-# Usage: $(call check_compile, [code], [compiler], [code_type], [c_flags],
-#               [extra_c_flags], [library_flags], [success_ret], [fail_ret])
-# Return: [success_ret] if compile succeeded, otherwise [fail_ret]
-check_compile = $(shell printf '%b\n' $(1) | \
-  $($(2)) $($(4)) -x $(3) $(LDFLAGS) $(5) - $(6) -o /dev/null > /dev/null 2>&1 \
-  && echo "$(7)" || echo "$(8)")
-
-# Helper macro to check whether a test program will compile with the specified
-# compiler flags.
-# Usage: $(call check_compile_cc, [code], [flags], [alternate_flags])
-# Return: [flags] if compile succeeded, otherwise [alternate_flags]
-check_compile_cc = $(call check_compile,$(1),CC,c,CFLAGS,$(2),,$(2),$(3))
-check_compile_cxx = $(call check_compile,$(1),CXX,c++,CXXFLAGS,$(2),,$(2),$(3))
-
-# Helper macro to check whether a test program will compile with the specified
-# libraries.
-# Usage: $(call check_compile_cc, [code], [library_flags], [alternate_flags])
-# Return: [library_flags] if compile succeeded, otherwise [alternate_flags]
-check_libs_cc = $(call check_compile,$(1),CC,c,CFLAGS,,$(2),$(2),$(3))
-check_libs_cxx = $(call check_compile,$(1),CXX,c++,CXXFLAGS,,$(2),$(2),$(3))
-
-# Helper macro to check whether the compiler accepts the specified flags.
-# Usage: $(call check_compile_cc, [flags], [alternate_flags])
-# Return: [flags] if compile succeeded, otherwise [alternate_flags]
-check_cc = $(call check_compile_cc,'int main() { return 0; }',$(1),$(2))
-check_cxx = $(call check_compile_cxx,'int main() { return 0; }',$(1),$(2))
-
-# Choose the stack protector flags based on whats supported by the compiler.
-SSP_CFLAGS := $(call check_cc,-fstack-protector-strong)
-ifeq ($(SSP_CFLAGS),)
- SSP_CFLAGS := $(call check_cc,-fstack-protector-all)
-endif
-
-# To update these from an including Makefile:
-#  CXXFLAGS += -mahflag  # Append to the list
-#  CXXFLAGS := -mahflag $(CXXFLAGS) # Prepend to the list
-#  CXXFLAGS := $(filter-out badflag,$(CXXFLAGS)) # Filter out a value
-# The same goes for CFLAGS.
-COMMON_CFLAGS-gcc := -fvisibility=internal -ggdb3 -Wa,--noexecstack
-COMMON_CFLAGS-clang := -fvisibility=hidden -ggdb
-COMMON_CFLAGS := -Wall -Werror -fno-strict-aliasing $(SSP_CFLAGS) -O1 -Wformat=2
-CXXFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CXXDRIVER))
-CFLAGS += $(COMMON_CFLAGS) $(COMMON_CFLAGS-$(CDRIVER))
-CPPFLAGS += -D_FORTIFY_SOURCE=2
-
-# Enable large file support.
-CPPFLAGS += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE
-
-# Disable exceptions based on the CXXEXCEPTIONS setting.
-ifeq ($(CXXEXCEPTIONS),0)
-  CXXFLAGS := $(CXXFLAGS) -fno-exceptions -fno-unwind-tables \
-    -fno-asynchronous-unwind-tables
-endif
-
-ifeq ($(MODE),opt)
-  # Up the optimizations.
-  CFLAGS := $(filter-out -O1,$(CFLAGS)) -O2
-  CXXFLAGS := $(filter-out -O1,$(CXXFLAGS)) -O2
-  # Only drop -g* if symbols aren't desired.
-  ifeq ($(NOSTRIP),0)
-    # TODO: do we want -fomit-frame-pointer on x86?
-    CFLAGS := $(filter-out -ggdb3,$(CFLAGS))
-    CXXFLAGS := $(filter-out -ggdb3,$(CXXFLAGS))
-  endif
-endif
-
-ifeq ($(MODE),profiling)
-  CFLAGS := $(CFLAGS) -O0 -g  --coverage
-  CXXFLAGS := $(CXXFLAGS) -O0 -g  --coverage
-  LDFLAGS := $(LDFLAGS) --coverage
-endif
-
-LDFLAGS := $(LDFLAGS) -Wl,-z,relro -Wl,-z,noexecstack -Wl,-z,now
-
-# Fancy helpers for color if a prompt is defined
-ifeq ($(COLOR),1)
-COLOR_RESET = \x1b[0m
-COLOR_GREEN = \x1b[32;01m
-COLOR_RED = \x1b[31;01m
-COLOR_YELLOW = \x1b[33;01m
-endif
-
-# By default, silence build output.
-QUIET = @
-ifeq ($(VERBOSE),1)
-  QUIET=
-endif
-
-#
-# Implementation macros for compile helpers above
-#
-
-# Useful for dealing with pie-broken toolchains.
-# Call make with PIE=0 to disable default PIE use.
-OBJ_PIE_FLAG = -fPIE
-COMPILE_PIE_FLAG = -pie
-ifeq ($(PIE),0)
-  OBJ_PIE_FLAG =
-  COMPILE_PIE_FLAG =
-endif
-
-# Favor member targets first for CXX_BINARY(%) magic.
-# And strip out nested members if possible.
-LP := (
-RP := )
-TARGET_OR_MEMBER = $(lastword $(subst $(LP), ,$(subst $(RP),,$(or $%,$@))))
-
-# Default compile from objects using pre-requisites but filters out
-# all non-.o files.
-define COMPILE_BINARY_implementation
-  @$(ECHO) "LD$(1)		$(subst $(PWD)/,,$(TARGET_OR_MEMBER))"
-  $(call auto_mkdir,$(TARGET_OR_MEMBER))
-  $(QUIET)$($(1)) $(COMPILE_PIE_FLAGS) -o $(TARGET_OR_MEMBER) \
-    $(2) $(LDFLAGS) \
-    $(filter %.o %.a,$(^:.o=.pie.o)) \
-    $(foreach so,$(filter %.so,$^),-L$(dir $(so)) \
-                            -l$(patsubst lib%,%,$(basename $(notdir $(so))))) \
-    $(LDLIBS)
-  $(call conditional_strip)
-  @$(ECHO) -n "BIN		"
-  @$(ECHO) "$(COLOR_GREEN)$(subst $(PWD)/,,$(TARGET_OR_MEMBER))$(COLOR_RESET)"
-  @$(ECHO) "	$(COLOR_YELLOW)-----$(COLOR_RESET)"
-endef
-
-# TODO: add version support extracted from PV environment variable
-#ifeq ($(PV),9999)
-#$(warning PV=$(PV). If shared object versions matter, please force PV=.)
-#endif
-# Then add -Wl,-soname,$@.$(PV) ?
-
-# Default compile from objects using pre-requisites but filters out
-# all non-.o values. (Remember to add -L$(OUT) -llib)
-COMMA := ,
-define COMPILE_LIBRARY_implementation
-  @$(ECHO) "SHARED$(1)	$(subst $(PWD)/,,$(TARGET_OR_MEMBER))"
-  $(call auto_mkdir,$(TARGET_OR_MEMBER))
-  $(QUIET)$($(1)) -shared -Wl,-E -o $(TARGET_OR_MEMBER) \
-    $(2) $(LDFLAGS) \
-    $(if $(filter %.a,$^),-Wl$(COMMA)--whole-archive,) \
-    $(filter %.o ,$(^:.o=.pic.o)) \
-    $(foreach a,$(filter %.a,$^),-L$(dir $(a)) \
-                            -l$(patsubst lib%,%,$(basename $(notdir $(a))))) \
-    $(foreach so,$(filter %.so,$^),-L$(dir $(so)) \
-                            -l$(patsubst lib%,%,$(basename $(notdir $(so))))) \
-    $(LDLIBS)
-  $(call conditional_strip)
-  @$(ECHO) -n "LIB		$(COLOR_GREEN)"
-  @$(ECHO) "$(subst $(PWD)/,,$(TARGET_OR_MEMBER))$(COLOR_RESET)"
-  @$(ECHO) "	$(COLOR_YELLOW)-----$(COLOR_RESET)"
-endef
-
-define conditional_strip
-  $(if $(filter 0,$(NOSTRIP)),$(call strip_artifact))
-endef
-
-define strip_artifact
-  @$(ECHO) "STRIP		$(subst $(OUT)/,,$(TARGET_OR_MEMBER))"
-  $(if $(filter 1,$(SPLITDEBUG)), @$(ECHO) -n "DEBUG	"; \
-    $(ECHO) "$(COLOR_YELLOW)\
-$(subst $(OUT)/,,$(TARGET_OR_MEMBER)).debug$(COLOR_RESET)")
-  $(if $(filter 1,$(SPLITDEBUG)), \
-    $(QUIET)$(OBJCOPY) --only-keep-debug "$(TARGET_OR_MEMBER)" \
-      "$(TARGET_OR_MEMBER).debug")
-  $(if $(filter-out dbg,$(MODE)),$(QUIET)$(STRIP) --strip-unneeded \
-    "$(TARGET_OR_MEMBER)",)
-endef
-
-#
-# Global pattern rules
-#
-
-# Below, the archive member syntax is abused to create fancier
-# syntactic sugar for recipe authors that avoids needed to know
-# subcall options.  The downside is that make attempts to look
-# into the phony archives for timestamps. This will cause the final
-# target to be rebuilt/linked on _every_ call to make even when nothing
-# has changed.  Until a better way presents itself, we have helpers that
-# do the stat check on make's behalf.  Dodgy but simple.
-define old_or_no_timestamp
-  $(if $(realpath $%),,$(1))
-  $(if $(shell find $^ -cnewer "$%" 2>/dev/null),$(1))
-endef
-
-define check_deps
-  $(if $(filter 0,$(words $^)),\
-    $(error Missing dependencies or declaration of $@($%)),)
-endef
-
-# Build a cxx target magically
-CXX_BINARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call cxx_binary))
-clean: CLEAN(CXX_BINARY*)
-
-CC_BINARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call cc_binary))
-clean: CLEAN(CC_BINARY*)
-
-CXX_STATIC_BINARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call cxx_binary,-static))
-clean: CLEAN(CXX_STATIC_BINARY*)
-
-CC_STATIC_BINARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call cc_binary,-static))
-clean: CLEAN(CC_STATIC_BINARY*)
-
-CXX_LIBRARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call cxx_library))
-clean: CLEAN(CXX_LIBRARY*)
-
-CXX_LIBARY(%):
-	$(error Typo alert! LIBARY != LIBRARY)
-
-CC_LIBRARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call cc_library))
-clean: CLEAN(CC_LIBRARY*)
-
-CC_LIBARY(%):
-	$(error Typo alert! LIBARY != LIBRARY)
-
-CXX_STATIC_LIBRARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call update_archive))
-clean: CLEAN(CXX_STATIC_LIBRARY*)
-
-CXX_STATIC_LIBARY(%):
-	$(error Typo alert! LIBARY != LIBRARY)
-
-CC_STATIC_LIBRARY(%):
-	$(call check_deps)
-	$(call old_or_no_timestamp,$(call update_archive))
-clean: CLEAN(CC_STATIC_LIBRARY*)
-
-CC_STATIC_LIBARY(%):
-	$(error Typo alert! LIBARY != LIBRARY)
-
-
-TEST(%): % qemu_chroot_install
-	$(call TEST_implementation)
-.PHONY: TEST
-
-# multiple targets with a wildcard need to share an directory.
-# Don't use this directly it just makes sure the directory is removed _after_
-# the files are.
-CLEANFILE(%):
-	$(call silent_rm,$(TARGET_OR_MEMBER))
-.PHONY: CLEANFILE
-
-CLEAN(%): CLEANFILE(%)
-	$(QUIET)# CLEAN($%) meta-target called
-	$(if $(filter-out $(PWD)/,$(dir $(abspath $(TARGET_OR_MEMBER)))), \
-	  $(call silent_rmdir,$(dir $(abspath $(TARGET_OR_MEMBER)))),\
-	  $(QUIET)# Not deleting $(dir $(abspath $(TARGET_OR_MEMBER))) yet.)
-.PHONY: CLEAN
-
-#
-# Top-level objects and pattern rules
-#
-
-# All objects for .c files at the top level
-C_OBJECTS = $(patsubst $(SRC)/%.c,%.o,$(wildcard $(SRC)/*.c))
-
-
-# All objects for .cxx files at the top level
-CXX_OBJECTS = $(patsubst $(SRC)/%.cc,%.o,$(wildcard $(SRC)/*.cc))
-
-# Note, the catch-all pattern rules don't work in subdirectories because
-# we're building from the $(OUT) directory. At the top-level (here) they will
-# work, but we go ahead and match using the module form.  Then we can place a
-# generic pattern rule to capture leakage from the main Makefile. (Later in the
-# file.)
-#
-# The reason target specific pattern rules work well for modules,
-# MODULE_C_OBJECTS, is because it scopes the behavior to the given target which
-# ensures we get a relative directory offset from $(OUT) which otherwise would
-# not match without further magic on a per-subdirectory basis.
-
-# Creates object file rules. Call with eval.
-# $(1) list of .o files
-# $(2) source type (CC or CXX)
-# $(3) source suffix (cc or c)
-# $(4) compiler flag name (CFLAGS or CXXFLAGS)
-# $(5) source dir: _only_ if $(SRC). Leave blank for obj tree.
-define add_object_rules
-$(patsubst %.o,%.pie.o,$(1)): %.pie.o: $(5)%.$(3) %.o.depends
-	$$(call auto_mkdir,$$@)
-	$$(call OBJECT_PATTERN_implementation,$(2),\
-          $$(basename $$@),$$($(4)) $$(CPPFLAGS) $$(OBJ_PIE_FLAG))
-
-$(patsubst %.o,%.pic.o,$(1)): %.pic.o: $(5)%.$(3) %.o.depends
-	$$(call auto_mkdir,$$@)
-	$$(call OBJECT_PATTERN_implementation,$(2),\
-          $$(basename $$@),$$($(4)) $$(CPPFLAGS) -fPIC)
-
-# Placeholder for depends
-$(patsubst %.o,%.o.depends,$(1)):
-	$$(call auto_mkdir,$$@)
-	$$(QUIET)touch "$$@"
-
-$(1): %.o: %.pic.o %.pie.o
-	$$(call auto_mkdir,$$@)
-	$$(QUIET)touch "$$@"
-endef
-
-define OBJECT_PATTERN_implementation
-  @$(ECHO) "$(1)		$(subst $(SRC)/,,$<) -> $(2).o"
-  $(call auto_mkdir,$@)
-  $(QUIET)$($(1)) -c -MD -MF $(2).d $(3) -o $(2).o $<
-  $(QUIET)# Wrap all the deps in $$(wildcard) so a missing header
-  $(QUIET)# won't cause weirdness.  First we remove newlines and \,
-  $(QUIET)# then wrap it.
-  $(QUIET)sed -i -e :j -e '$$!N;s|\\\s*\n| |;tj' \
-    -e 's|^\(.*\s*:\s*\)\(.*\)$$|\1 $$\(wildcard \2\)|' $(2).d
-endef
-
-# Now actually register handlers for C(XX)_OBJECTS.
-$(eval $(call add_object_rules,$(C_OBJECTS),CC,c,CFLAGS,$(SRC)/))
-$(eval $(call add_object_rules,$(CXX_OBJECTS),CXX,cc,CXXFLAGS,$(SRC)/))
-
-# Disable default pattern rules to help avoid leakage.
-# These may already be handled by '-r', but let's keep it to be safe.
-%: %.o ;
-%.a: %.o ;
-%.o: %.c ;
-%.o: %.cc ;
-
-# NOTE: A specific rule for archive objects is avoided because parallel
-#       update of the archive causes build flakiness.
-# Instead, just make the objects the prerequisites and use update_archive
-# To use the foo.a(obj.o) functionality, targets would need to specify the
-# explicit object they expect on the prerequisite line.
-
-#
-# Architecture detection and QEMU wrapping
-#
-
-HOST_ARCH ?= $(shell uname -m)
-override ARCH := $(strip $(ARCH))
-override HOST_ARCH := $(strip $(HOST_ARCH))
-# emake will supply "x86" or "arm" for ARCH, but
-# if uname -m runs and you get x86_64, then this subst
-# will break.
-ifeq ($(subst x86,i386,$(ARCH)),i386)
-  QEMU_ARCH := $(subst x86,i386,$(ARCH))  # x86 -> i386
-else ifeq ($(subst amd64,x86_64,$(ARCH)),x86_64)
-  QEMU_ARCH := $(subst amd64,x86_64,$(ARCH))  # amd64 -> x86_64
-else
-  QEMU_ARCH = $(ARCH)
-endif
-override QEMU_ARCH := $(strip $(QEMU_ARCH))
-
-# If we're cross-compiling, try to use qemu for running the tests.
-ifneq ($(QEMU_ARCH),$(HOST_ARCH))
-  ifeq ($(SYSROOT),)
-    $(info SYSROOT not defined. qemu-based testing disabled)
-  else
-    # A SYSROOT is assumed for QEmu use.
-    USE_QEMU ?= 1
-
-    # Allow 64-bit hosts to run 32-bit without qemu.
-    ifeq ($(HOST_ARCH),x86_64)
-      ifeq ($(QEMU_ARCH),i386)
-        USE_QEMU = 0
-      endif
-    endif
-  endif
-else
-  USE_QEMU ?= 0
-endif
-
-# Normally we don't need to run as root or do bind mounts, so only
-# enable it by default when we're using QEMU.
-NEEDS_ROOT ?= $(USE_QEMU)
-NEEDS_MOUNTS ?= $(USE_QEMU)
-
-SYSROOT_OUT = $(OUT)
-ifneq ($(SYSROOT),)
-  SYSROOT_OUT = $(subst $(SYSROOT),,$(OUT))
-else
-  # Default to / when all the empty-sysroot logic is done.
-  SYSROOT = /
-endif
-
-QEMU_NAME = qemu-$(QEMU_ARCH)
-QEMU_PATH = /build/bin/$(QEMU_NAME)
-QEMU_SYSROOT_PATH = $(SYSROOT)$(QEMU_PATH)
-QEMU_SRC_PATH = /usr/bin/$(QEMU_NAME)
-QEMU_BINFMT_PATH = /proc/sys/fs/binfmt_misc/$(QEMU_NAME)
-QEMU_REGISTER_PATH = /proc/sys/fs/binfmt_misc/register
-
-QEMU_MAGIC_arm = ":$(QEMU_NAME):M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x28\x00:\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff\xff:/build/bin/qemu-arm:"
-
-
-#
-# Output full configuration at top level
-#
-
-# Don't show on clean
-ifneq ($(MAKECMDGOALS),clean)
-  $(info build configuration:)
-  $(info - OUT=$(OUT))
-  $(info - SRC=$(SRC))
-  $(info - MODE=$(MODE))
-  $(info - SPLITDEBUG=$(SPLITDEBUG))
-  $(info - NOSTRIP=$(NOSTRIP))
-  $(info - VALGRIND=$(VALGRIND))
-  $(info - COLOR=$(COLOR))
-  $(info - CXXEXCEPTIONS=$(CXXEXCEPTIONS))
-  $(info - ARCH=$(ARCH))
-  $(info - QEMU_ARCH=$(QEMU_ARCH))
-  $(info - USE_QEMU=$(USE_QEMU))
-  $(info - NEEDS_ROOT=$(NEEDS_ROOT))
-  $(info - NEEDS_MOUNTS=$(NEEDS_MOUNTS))
-  $(info - SYSROOT=$(SYSROOT))
-  $(info )
-endif
-
-#
-# Standard targets with detection for when they are improperly configured.
-#
-
-# all does not include tests by default
-all:
-	$(QUIET)(test -z "$^" && \
-	$(ECHO) "You must add your targets as 'all' prerequisites") || true
-	$(QUIET)test -n "$^"
-
-# Builds and runs tests for the target arch
-# Run them in parallel
-# After the test have completed, if profiling, run coverage analysis
-tests:
-ifeq ($(MODE),profiling)
-	@$(ECHO) "COVERAGE [$(COLOR_YELLOW)STARTED$(COLOR_RESET)]"
-	$(QUIET)FILES="";						\
-		for GCNO in `find . -name "*.gcno"`; do			\
-			GCDA="$${GCNO%.gcno}.gcda";			\
-			if [ -e $${GCDA} ]; then			\
-				FILES="$${FILES} $${GCDA}";		\
-			fi						\
-		done;							\
-		if [ -n "$${FILES}" ]; then				\
-			gcov -l $${FILES};				\
-			lcov --capture --directory .			\
-				--output-file=lcov-coverage.info;	\
-			genhtml lcov-coverage.info			\
-				--output-directory lcov-html;		\
-		fi
-	@$(ECHO) "COVERAGE [$(COLOR_YELLOW)FINISHED$(COLOR_RESET)]"
-endif
-.PHONY: tests
-
-qemu_chroot_install:
-ifeq ($(USE_QEMU),1)
-	$(QUIET)$(ECHO) "QEMU   Preparing $(QEMU_NAME)"
-	@# Copying strategy
-	@# Compare /usr/bin/qemu inode to /build/$board/build/bin/qemu, if different
-	@# hard link to a temporary file, then rename temp to target. This should
-	@# ensure that once $QEMU_SYSROOT_PATH exists it will always exist, regardless
-	@# of simultaneous test setups.
-	$(QUIET)if [[ ! -e $(QEMU_SYSROOT_PATH) || \
-	    `stat -c %i $(QEMU_SRC_PATH)` != `stat -c %i $(QEMU_SYSROOT_PATH)` \
-	    ]]; then \
-	  $(ROOT_CMD) ln -Tf $(QEMU_SRC_PATH) $(QEMU_SYSROOT_PATH).$$$$; \
-	  $(ROOT_CMD) mv -Tf $(QEMU_SYSROOT_PATH).$$$$ $(QEMU_SYSROOT_PATH); \
-	fi
-
-	@# Prep the binfmt handler. First mount if needed, then unregister any bad
-	@# mappings and then register our mapping.
-	@# There may still be some race conditions here where one script de-registers
-	@# and another script starts executing before it gets re-registered, however
-	@# it should be rare.
-	-$(QUIET)[[ -e $(QEMU_REGISTER_PATH) ]] || \
-	  $(ROOT_CMD) mount binfmt_misc -t binfmt_misc \
-	    /proc/sys/fs/binfmt_misc
-
-	-$(QUIET)if [[ -e $(QEMU_BINFMT_PATH) && \
-	      `awk '$$1 == "interpreter" {print $$NF}' $(QEMU_BINFMT_PATH)` != \
-	      "$(QEMU_PATH)" ]]; then \
-	  echo -1 | $(ROOT_CMD) tee $(QEMU_BINFMT_PATH) >/dev/null; \
-	fi
-
-	-$(if $(QEMU_MAGIC_$(ARCH)),$(QUIET)[[ -e $(QEMU_BINFMT_PATH) ]] || \
-	  echo $(QEMU_MAGIC_$(ARCH)) | $(ROOT_CMD) tee $(QEMU_REGISTER_PATH) \
-	    >/dev/null)
-endif
-.PHONY: qemu_clean qemu_chroot_install
-
-# TODO(wad) Move to -L $(SYSROOT) and fakechroot when qemu-user
-#           doesn't hang traversing /proc from SYSROOT.
-SUDO_CMD = sudo
-UNSHARE_CMD = unshare
-QEMU_CMD =
-ROOT_CMD = $(if $(filter 1,$(NEEDS_ROOT)),$(SUDO_CMD) , )
-MOUNT_CMD = $(if $(filter 1,$(NEEDS_MOUNTS)),$(ROOT_CMD) mount, \#)
-UMOUNT_CMD = $(if $(filter 1,$(NEEDS_MOUNTS)),$(ROOT_CMD) umount, \#)
-QEMU_LDPATH = $(SYSROOT_LDPATH):/lib64:/lib:/usr/lib64:/usr/lib
-ROOT_CMD_LDPATH = $(SYSROOT_LDPATH):$(SYSROOT)/lib64:
-ROOT_CMD_LDPATH := $(ROOT_CMD_LDPATH):$(SYSROOT)/lib:$(SYSROOT)/usr/lib64:
-ROOT_CMD_LDPATH := $(ROOT_CMD_LDPATH):$(SYSROOT)/usr/lib
-ifeq ($(USE_QEMU),1)
-  export QEMU_CMD = \
-   $(SUDO_CMD) chroot $(SYSROOT) $(QEMU_PATH) \
-   -drop-ld-preload \
-   -E LD_LIBRARY_PATH="$(QEMU_LDPATH):$(patsubst $(OUT),,$(LD_DIRS))" \
-   -E HOME="$(HOME)" -E SRC="$(SRC)" --
-  # USE_QEMU conditional function
-  define if_qemu
-    $(1)
-  endef
-else
-  ROOT_CMD = $(if $(filter 1,$(NEEDS_ROOT)),sudo, ) \
-    LD_LIBRARY_PATH="$(ROOT_CMD_LDPATH):$(LD_DIRS)"
-  define if_qemu
-    $(2)
-  endef
-endif
-
-VALGRIND_CMD =
-ifeq ($(VALGRIND),1)
-  VALGRIND_CMD = /usr/bin/valgrind --tool=memcheck $(VALGRIND_ARGS) --
-endif
-
-define TEST_implementation
-  $(QUIET)$(call TEST_setup)
-  $(QUIET)$(call TEST_run)
-  $(QUIET)$(call TEST_teardown)
-  $(QUIET)exit $$(cat $(OUT)$(TARGET_OR_MEMBER).status.test)
-endef
-
-define TEST_setup
-  @$(ECHO) -n "TEST		$(TARGET_OR_MEMBER) "
-  @$(ECHO) "[$(COLOR_YELLOW)SETUP$(COLOR_RESET)]"
-  $(QUIET)# Setup a target-specific results file
-  $(QUIET)(echo > $(OUT)$(TARGET_OR_MEMBER).setup.test)
-  $(QUIET)(echo 1 > $(OUT)$(TARGET_OR_MEMBER).status.test)
-  $(QUIET)(echo > $(OUT)$(TARGET_OR_MEMBER).cleanup.test)
-  $(QUIET)# No setup if we are not using QEMU
-  $(QUIET)# TODO(wad) this is racy until we use a vfs namespace
-  $(call if_qemu,\
-    $(QUIET)(echo "mkdir -p '$(SYSROOT)/proc' '$(SYSROOT)/dev' \
-                            '$(SYSROOT)/mnt/host/source'" \
-             >> "$(OUT)$(TARGET_OR_MEMBER).setup.test"))
-  $(call if_qemu,\
-    $(QUIET)(echo "$(MOUNT_CMD) --bind /mnt/host/source \
-             '$(SYSROOT)/mnt/host/source'" \
-             >> "$(OUT)$(TARGET_OR_MEMBER).setup.test"))
-  $(call if_qemu,\
-    $(QUIET)(echo "$(MOUNT_CMD) --bind /proc '$(SYSROOT)/proc'" \
-             >> "$(OUT)$(TARGET_OR_MEMBER).setup.test"))
-  $(call if_qemu,\
-    $(QUIET)(echo "$(MOUNT_CMD) --bind /dev '$(SYSROOT)/dev'" \
-             >> "$(OUT)$(TARGET_OR_MEMBER).setup.test"))
-endef
-
-define TEST_teardown
-  @$(ECHO) -n "TEST		$(TARGET_OR_MEMBER) "
-  @$(ECHO) "[$(COLOR_YELLOW)TEARDOWN$(COLOR_RESET)]"
-  $(call if_qemu, $(QUIET)$(SHELL) "$(OUT)$(TARGET_OR_MEMBER).cleanup.test")
-endef
-
-# Use GTEST_ARGS.[arch] if defined.
-override GTEST_ARGS.real = \
- $(call if_qemu,$(GTEST_ARGS.qemu.$(QEMU_ARCH)),$(GTEST_ARGS.host.$(HOST_ARCH)))
-
-define TEST_run
-  @$(ECHO) -n "TEST		$(TARGET_OR_MEMBER) "
-  @$(ECHO) "[$(COLOR_GREEN)RUN$(COLOR_RESET)]"
-  $(QUIET)(echo 1 > "$(OUT)$(TARGET_OR_MEMBER).status.test")
-  $(QUIET)(echo $(ROOT_CMD) SRC="$(SRC)" $(QEMU_CMD) $(VALGRIND_CMD) \
-    "$(strip $(call if_qemu, $(SYSROOT_OUT),$(OUT))$(TARGET_OR_MEMBER))" \
-      $(if $(filter-out 0,$(words $(GTEST_ARGS.real))),$(GTEST_ARGS.real),\
-           $(GTEST_ARGS)) >> "$(OUT)$(TARGET_OR_MEMBER).setup.test")
-  -$(QUIET)$(call if_qemu,$(SUDO_CMD) $(UNSHARE_CMD) -m) $(SHELL) \
-      $(OUT)$(TARGET_OR_MEMBER).setup.test \
-  && echo 0 > "$(OUT)$(TARGET_OR_MEMBER).status.test"
-endef
-
-# Recursive list reversal so that we get RMDIR_ON_CLEAN in reverse order.
-define reverse
-$(if $(1),$(call reverse,$(wordlist 2,$(words $(1)),$(1)))) $(firstword $(1))
-endef
-
-clean: qemu_clean
-clean: CLEAN($(OUT)*.d) CLEAN($(OUT)*.o) CLEAN($(OUT)*.debug)
-clean: CLEAN($(OUT)*.test) CLEAN($(OUT)*.depends)
-clean: CLEAN($(OUT)*.gcno) CLEAN($(OUT)*.gcda) CLEAN($(OUT)*.gcov)
-clean: CLEAN($(OUT)lcov-coverage.info) CLEAN($(OUT)lcov-html)
-
-clean:
-	$(QUIET)# Always delete the containing directory last.
-	$(call silent_rmdir,$(OUT))
-
-FORCE: ;
-# Empty rule for use when no special targets are needed, like large_tests
-NONE:
-
-.PHONY: clean NONE valgrind NONE
-.DEFAULT_GOAL  :=  all
-# Don't let make blow away "intermediates"
-.PRECIOUS: %.pic.o %.pie.o %.a %.pic.a %.pie.a %.test
-
-# Start accruing build info
-OUT_DIRS = $(OUT)
-LD_DIRS = $(OUT)
-SRC_DIRS = $(SRC)
-
-include $(wildcard $(OUT)*.d)
-SUBMODULE_DIRS = $(wildcard $(SRC)/*/module.mk)
-include $(SUBMODULE_DIRS)
-
-
-else  ## In duplicate inclusions of common.mk
-
-# Get the current inclusion directory without a trailing slash
-MODULE := $(patsubst %/,%, \
-           $(dir $(lastword $(filter-out %common.mk,$(MAKEFILE_LIST)))))
-MODULE := $(subst $(SRC)/,,$(MODULE))
-MODULE_NAME := $(subst /,_,$(MODULE))
-#VPATH := $(MODULE):$(VPATH)
-
-
-# Depth first
-$(eval OUT_DIRS += $(OUT)$(MODULE))
-$(eval SRC_DIRS += $(OUT)$(MODULE))
-$(eval LD_DIRS := $(LD_DIRS):$(OUT)$(MODULE))
-
-# Add the defaults from this dir to rm_clean
-clean: CLEAN($(OUT)$(MODULE)/*.d) CLEAN($(OUT)$(MODULE)/*.o)
-clean: CLEAN($(OUT)$(MODULE)/*.debug) CLEAN($(OUT)$(MODULE)/*.test)
-clean: CLEAN($(OUT)$(MODULE)/*.depends)
-clean: CLEAN($(OUT)$(MODULE)/*.gcno) CLEAN($(OUT)$(MODULE)/*.gcda)
-clean: CLEAN($(OUT)$(MODULE)/*.gcov) CLEAN($(OUT)lcov-coverage.info)
-clean: CLEAN($(OUT)lcov-html)
-
-$(info + submodule: $(MODULE_NAME))
-# We must eval otherwise they may be dropped.
-MODULE_C_OBJECTS = $(patsubst $(SRC)/$(MODULE)/%.c,$(MODULE)/%.o,\
-  $(wildcard $(SRC)/$(MODULE)/*.c))
-$(eval $(MODULE_NAME)_C_OBJECTS ?= $(MODULE_C_OBJECTS))
-MODULE_CXX_OBJECTS = $(patsubst $(SRC)/$(MODULE)/%.cc,$(MODULE)/%.o,\
-  $(wildcard $(SRC)/$(MODULE)/*.cc))
-$(eval $(MODULE_NAME)_CXX_OBJECTS ?= $(MODULE_CXX_OBJECTS))
-
-# Note, $(MODULE) is implicit in the path to the %.c.
-# See $(C_OBJECTS) for more details.
-# Register rules for the module objects.
-$(eval $(call add_object_rules,$(MODULE_C_OBJECTS),CC,c,CFLAGS,$(SRC)/))
-$(eval $(call add_object_rules,$(MODULE_CXX_OBJECTS),CXX,cc,CXXFLAGS,$(SRC)/))
-
-# Continue recursive inclusion of module.mk files
-SUBMODULE_DIRS = $(wildcard $(SRC)/$(MODULE)/*/module.mk)
-include $(wildcard $(OUT)$(MODULE)/*.d)
-include $(SUBMODULE_DIRS)
-
-endif
-endif  ## pass-to-subcall wrapper for relocating the call directory
diff --git a/fuzzers/modp_b64_decode_fuzzer.cc b/fuzzers/modp_b64_decode_fuzzer.cc
new file mode 100644
index 0000000..176ebc3
--- /dev/null
+++ b/fuzzers/modp_b64_decode_fuzzer.cc
@@ -0,0 +1,17 @@
+// Copyright 2019 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string>
+#include <cstddef>
+#include <cstdint>
+
+#include "modp_b64.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  // Create a buffer to store the output.
+  std::string buffer;
+  buffer.resize(modp_b64_decode_len(size));
+  modp_b64_decode(&(buffer[0]), (const char *) data, size);
+  return 0;
+}
diff --git a/fuzzers/modp_b64_encode_fuzzer.cc b/fuzzers/modp_b64_encode_fuzzer.cc
new file mode 100644
index 0000000..0f61575
--- /dev/null
+++ b/fuzzers/modp_b64_encode_fuzzer.cc
@@ -0,0 +1,17 @@
+// Copyright 2019 The Chromium OS Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include <string>
+#include <cstddef>
+#include <cstdint>
+
+#include "modp_b64.h"
+
+extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
+  // Create a buffer to store the output.
+  std::string buffer;
+  buffer.resize(modp_b64_encode_len(size));
+  modp_b64_encode(&buffer[0], (const char *)data, size);
+  return 0;
+}
-- 
2.23.0