Adding in-process crash dumping library and crash uploader

src/platform/crash/Makefile

 # Copyright (c) 2010 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.
 
 CRASH_BIN = crash_reporter
+CRASH_LIB = libcrash_dumper.so
 CRASH_OBJS = system_logging.o user_collector.o
 TEST_OBJS = $(CRASH_OBJS) system_logging_mock.o
 TEST_BINS = user_collector_test
 
 LIBS = -lbase -lpthread -lgflags -lrt -lmetrics
+
 TEST_LIBS = $(LIBS) -lgtest -lgmock
-INCLUDE_DIRS = -I..
+INCLUDE_DIRS = -I.. -I$(SYSROOT)/usr/include/google-breakpad
 LIB_DIRS =
 
-all: $(CRASH_BIN)
+# We need -fPIC for linking objects into shared objects.
+CXXFLAGS += -fPIC -Wall -Werror
+
+all: $(CRASH_BIN) $(CRASH_LIB)
 
 $(CRASH_BIN): crash_reporter.o $(CRASH_OBJS)
         $(CXX) $(CXXFLAGS) $(LIB_DIRS) $^ $(LIBS) -o $@
 
+$(CRASH_LIB): crash_dumper.o
+        $(CXX) -shared -lbreakpad_client $^ -o $@
+
 tests: $(TEST_BINS)
 
 user_collector_test: user_collector_test.o $(TEST_OBJS)
         $(CXX) $(CXXFLAGS) $(LIB_DIRS) $^ $(TEST_LIBS) -o $@
 
 .cc.o:
         $(CXX) $(CXXFLAGS) $(INCLUDE_DIRS) -c $< -o $@
 
 clean:
-        rm -rf *.o $(CRASH_BIN) $(TEST_BINS)
+        rm -rf *.o $(CRASH_BIN) $(TEST_BINS) $(CRASH_LIB)