Hosted/linux: Add process/cpu info screen to the debug menu.

The new menu is very helpful on RaaA, but also shown in the sim. It shows
the process cpu usage, process' time stats (user,sys,real) and the cpu
frequency stats.

It uses a thread to sample the data, however the thread is not created
until the menu is visited for the first time.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31364 a1c6a512-1295-4272-9138-f99709370657

android/android.make

@@ -7,13 +7,19 @@
 # $Id$
 #
 
+# this is a glibc compatibility hack to provide a get_nprocs() replacement.
+# The NDK ships cpu-features.c which has a compatible function android_getCpuCount()
+CPUFEAT = /home/kugel/share/android-ndk-r6/sources/android/cpufeatures
+INCLUDES += -I$(CPUFEAT)
+OTHER_SRC += $(CPUFEAT)/cpu-features.c
+$(BUILDDIR)/cpu-features.o: $(CPUFEAT)/cpu-features.c
+	$(call PRINTS,CC $(subst $(ANDROID_NDK_PATH)/,,$<))$(CC) -o $@ -c $^ \
+	$(GCCOPTS) -Wno-unused
+
 .SECONDEXPANSION: # $$(JAVA_OBJ) is not populated until after this
 .SECONDEXPANSION: # $$(OBJ) is not populated until after this
 .PHONY: apk classes clean dex dirs libs jar
 
-$(BUILDDIR)/$(BINARY): $$(OBJ) $(VOICESPEEXLIB) $(FIRMLIB) $(SKINLIB)
-	$(call PRINTS,LD $(BINARY))$(CC) -o $@ $^ $(LDOPTS) $(GLOBAL_LDOPTS)
-
 PACKAGE=org.rockbox
 PACKAGE_PATH=org/rockbox
 ANDROID_DIR=$(ROOTDIR)/android
@@ -103,6 +109,10 @@ dex: $(DEX)
 
 classes: $(R_OBJ) $(JAVA_OBJ)
 
+
+$(BUILDDIR)/$(BINARY): $$(OBJ) $(VOICESPEEXLIB) $(FIRMLIB) $(SKINLIB) $(BUILDDIR)/cpu-features.o
+	$(call PRINTS,LD $(BINARY))$(CC) -o $@ $^ $(LDOPTS) $(GLOBAL_LDOPTS)
+
 $(BINLIB_DIR)/$(BINARY): $(BUILDDIR)/$(BINARY)
 	$(call PRINTS,CP $(BINARY))cp $^ $@