static-libraries

I am trying to compile a simple C library for android, but the resulting library doesn't contain any symbols/objects! I am checking the library using nm command. This is the Android.mk: LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_MODULE := my_lib_static LOCAL_MODULE_FILENAME := libmylib LOCAL_C_INCLUDES := $(LOCAL_PATH) LOCAL_SRC_FILES := File1.c File2.c include $(BUILD_SHARED_LIBRARY) # or include $(BUILD_STATIC_LIBRARY) EDIT : A subfolder called "objs" is created, which has all the symbols. EDIT : This is the output of gobjdump : MyLibBot.o: file format elf32-littlemips gobjdump

I'm writing a simple library for an ultrasonic distance sensor and thought i'd try using interrupts. However i can't set my functions in the attachCallback method properly. I want HCSR04Interrupt::echoHigh() and HCSR04Interrupt::echoLow() called when the pin goes high and low respectively. I've Googled this to no avail. The Ardiuno IDE says the following: ./Arduino/libraries/HCSR04/HCSR04Interrupt.cpp: In member function 'void HCSR04Interrupt::getDistance()': ./Arduino/libraries/HCSR04/HCSR04Interrupt.cpp:31: error: argument of type 'void (HCSR04Interrupt::)()' does not match 'void (*)()' .

I'd like to build both static and shared libraries in a project. I know that shared libraries need to be be created from objects compiled with -fpic to get Position Independent Code while the static library doesn't need this. This is all fine and I can create either a shared or static library. I wouldn't want to compile my source twice to get the different object files, so how is this usually done? I read how to get a shared library based on a static one . However, the example shows the static library being built with -fpic. Is this the way to go? Are there things to be aware of with this? Is

How can one link Visual C++ (2010) console app with a STATIC library created by MinGW ( *.a format)? Is it compatible with Visual C++ 2010? Thank you. It's not compatible. However, if you extract all the object files from the library (use ar ), the VC++ linker is able to deal with those (I tested it, although I used cygwin gcc rather than mingw gcc). Note that you may still have name mangling problems if you don't use extern "C" . You may of course use VC++'s LIB.EXE tool to make these into a static library in VC++ format. As @Michael points out, you will definitely have problems if you try to

Is it possible to compile a linux kernel(2.6) module that includes functionality defined by non-kernel includes? For example: kernelmodule.h #include <linux/init.h> #include <linux/module.h> #include <linux/kernel.h> // printk() // ... #include <openssl/sha.h> // ... Makefile obj-m := kernelmodule.o all: $(MAKE) -C /lib/modules/`uname -r`/build M=`pwd` modules clean: $(MAKE) -C /lib/modules/`uname -r`/build M=`pwd` clean $(RM) Module.markers modules.order The kernel module I have written and are trying to compile contains functionality found in a number of openssl include files. The standard