Linux Programming: Building and Debugging

This ebook is a realistic advent on tips to construct and debug courses in Linux.

The e-book covers the next topics:

* development a software, compilation and linking

* assessment of GNU C/C++ compiler

* construction courses from a number of modules

* make and makefiles

* static and dynamic libraries in Linux

* debugging programs

* detecting reminiscence leaks

The ebook is addressed to novices in Linux programming in addition to those that have programmed utilizing different environments and working structures earlier than (Windows, for instance) and who now are looking to how one can enhance courses in Linux.

Show description

Preview of Linux Programming: Building and Debugging PDF

Best Linux books

Embedded Linux Primer: A Practical Real-World Approach (2nd Edition)

Up to date, entire tips for constructing Embedded ideas with Linux   Linux has emerged as today’s no 1 working process for embedded items. Christopher Hallinan’s Embedded Linux Primer has confirmed itself because the definitive real-world consultant to development effective, high-value, embedded platforms with Linux.

The Official Ubuntu Book (5th Edition)

Ubuntu is an entire, unfastened working method that emphasizes neighborhood, help, and straightforwardness of use with no compromising pace, energy, or flexibility. It’s Linux for humans, designed for everybody from laptop beginners to specialists. Ubuntu 10. 04 is the newest release—more robust, extra versatile, and friendlier than ever.

Advanced Linux Networking

With increasingly more networks and mission-critical purposes operating on Linux, method, and community directors needs to be capable of do greater than organize a server and depend on its default configuration. this article is designed that can assist you in attaining a better point of competence. It makes a speciality of strong recommendations and contours of Linux networking and gives you with the information you want to increase server potency, improve safety, and adapt to new specifications.

Guide to Assembly Language Programming in Linux

Introduces Linux recommendations to programmers who're accustomed to different working structures corresponding to home windows XP presents accomplished assurance of the Pentium meeting language

Additional resources for Linux Programming: Building and Debugging

Show sample text content

The 1st application that wishes the shared library so much the library into reminiscence even as with this system. 2. the second one, third,.. and so forth software that want an analogous library will reuse the library already loaded into reminiscence. A reference count number for the variety of courses utilizing that library is maintained. three. whilst a software finishes the reference count number is decremented. four. while the reference count number reaches 0, which means no energetic courses are utilizing that library and the library is unloaded from reminiscence. with a purpose to in attaining the above performance, the linking method duties is now shared with this system loader. whilst development the executable the linker will purely insert the symbols for the what's used from the shared libraries. this system loader will truly unravel at run time the precise addresses for these symbols for the library loaded in reminiscence. This step is termed “ image relocation” or “ runtime linking” and the a part of this system loader liable for this job is named dynamic linker. in actual fact the dynamic linker itself is a Linux shared library (/lib/ld-linux*. so) as a result of image relocation, loading a software that makes use of shared items will take longer than the same software utilizing static libraries. A shared library may be loaded wherever within the Linux digital reminiscence. A code that may be loaded anyplace in reminiscence is termed position-independent code. for that reason whilst producing shared items the compiler wishes be steered to generate position-independent code. -fPIC is alternative for gcc to generate such output. See this within the instance lower than: $ gcc -c -fPIC module1. c module2. c module3. c Linking the shared-object calls for utilizing “-shared” alternative: $ gcc -shared -o libhello. so module1. o module2. o module3. o A libhello. so dossier is created within the present listing after the above command is accomplished. The makefile used to construct the hi executable utilizing libhello. so shared library is gifted under: $ cat Makefile LIB_SOURCE_FILES = $(wildcard module*. c) LIB_OBJECT_FILES = $(LIB_SOURCE_FILES:. c=. o) CC=gcc LNK_OPTS=libhello. so SOLNKFLAGS=-shared -o ifeq ($(DEBUG),true) CCFLAGS=-Wall -g SOCCFLAGS=-Wall -g -c -fPIC else CCFLAGS=-Wall SOCCFLAGS=-Wall -c -fPIC endif hi: major. o libhello. so ${CC} major. o -o $@ ${LNK_OPTS} libhello. so: ${LIB_OBJECT_FILES} ${CC} ${SOLNKFLAGS} $@ ${LIB_OBJECT_FILES} ${LIB_OBJECT_FILES}: ${LIB_SOURCE_FILES} ${CC} ${SOCCFLAGS} $^ percent. o: percent. c ${CC} ${CCFLAGS} -c $^ fresh: rm -rf hi libhello. so *. o If i attempt to execute the hi executable generated through the use of the above makefile i am getting the subsequent output: $ . /hello . /hello: errors whereas loading shared libraries: libhello. so: can't open shared item dossier: No such dossier or listing what's wrong or lacking the following? The failure is on the aspect the place the dynamic linker is making an attempt to load the libhello. so into reminiscence however it fails to discover it. The is going on as the dynamic linker is seeking shared libraries in a few predefined paths (for instance: /lib, /usr/lib, /usr/local/lib…etc) and my shared library is found within the present listing which isn't a part of the dynamic loader seek direction.

Download PDF sample

Rated 4.37 of 5 – based on 5 votes