using gdb to debug

run the ndk-GDB command,New files such as app_process (executable program) and GDB. Setup (configuration file) will be generated in OBJ/local/armeabi.Note: When performing this step, make sure that the program is running in the simulator.Right-click the project name and choose [debug as] or [run]> [debug events...] Fr

interface, you may need to replace the "Root=/dev/hda" above with "ROOT=/DEV/SDA". If it goes well, your own compiled kernel + file system will be displayed in that qemu dark window,Pour yourself a glass of water and celebrate. 5:gdb + kgdb Debug Kernel enables KGDB to increase the enabling parameters when the kernel is started, or the parameters of the Echo Kgdboc module after the kernel sta

1. Navigate to the project root at the command line and start the Spring boot project with the following command:Java-xdebug-xrunjdwp:server=y,transport=dt_socket,address=8000,suspend=n -jar target/ Myproject-0.0.1-snapshot.jarTip: This step essentially opens the debug feature for remote socket Port 8000.2. Open in the IDE of Eclipse in turnRun->debug as->debug

Sometimes, because of the increase in system code, causing many files to be interrelated, or some third interface (etc.), you have to debug online.On-line environment, we are all set "Ini_set (' display_errors ', false)" in order to prevent errors from being exposed online, to avoid increasing the risk of code exposure, and to see a more user-friendly experience.So, I developed a habit of directly on the Linux server,

core, you can see the following command where the core file exists: Cat/proc/sys/kernel/core_pattern The default value is the core III. Generation of Coredump files 1. Specify the build path of the core dumped file Console input Command: /sbin/sysctl-w kernel.core_pattern=/home/james/workspace/bin/core_%t_%e_%p %t-insert Unix time, the coredump occurred into filename when you add a core file when you build Unix %e-insert coredumping executable name into filename Add class name %p-insert pid in

(web_ Cmmenu_lan_path_chk_status); (gdb) n214 result->run_status = websts_cmmenu1_lanpatch_chk; In the first two lines, the values of each parameter are shown when entering Webprc_cmmenu_lchk:result = 0x1006cc8cfiletype = 60cominf=0x48197008Type=0ErrMsg = 0X10087F303) To continue execution, do not exit the function when it reaches the end of the function "}"! Execute the following command in GDB:Call Webprc_cmmenu_lchk

Many users who are new to Android development may encounter debugging problems. How can they quickly find the "Accident location" based on the error prompt "? In the eclipse + ADT development environment, there is no good way to directly track object content. By using the Android. util. Log class, you can find errors and print system log messages by yourself. It is an API for log output.ProgramYou can insert a log for an object at any time, and then o

, args:a=24, b=40 Locals @ 0x7fffffffdb98, Previous frame ' s SP is 0x7fffffffdbd0 Saved Registers:rip at 0x7fffffffdbc8 (GDB) Info frame 4 Stack frame at 0x7fffffffdcb0:rip = 0x40069f in print (Slee P.C:35); Saved rip = 0x4006c7 called by frame at 0X7FFFFFFFDCC0, caller of frame at 0x7fffffffdbd0 source language C. Arglist at 0x7fffffffdbc8, args:i=2 Locals @ 0X7FFFFFFFDBC8, Previous frame ' s SP is 0x7fffffffdcb0 Saved registers: RIP at 0x7fffff

Write this articleArticleThe purpose is to helpProgramProgrammers who want to develop and debug embedded Linux programs! Step 1, install wingdb, download location http://www.wingdb.com/, connection is http://www.wingdb.com/WinGDB-latest_trial.msi 30 days trial version uninstall after 30 days, delete all GDB-related registries, and then reinstall, it can be used for another 30 days, as shown in the install

Find segment errors using GDB and core Use GDB and core to find a segment error when a program appears with a segment error, the following prompt appears to view the core file size limit change it to an unrestricted Run command example 1. When a program appears with a segment error, the following prompt appears: Segmentation fault (core dumped) Core refers to

, bytes. the starting position of the imgfile, that is, from the starting position. the first byte of the imgfile starts to write data. Count * obs = 512 indicates the length of the data to be written. Here, the boot floppy disk image is ready. For more information about DD, losetup, and objdump commands, refer to the previous article. 4. Use qemu to start the system from the boot floppy disk image. Run the following command to start qemu. Qemu-boot order = A-FDA/dev/loop0 At this point, we shou

directly interrupted to the corresponding function, but GETUID-ASM uses the interrupt int 0x80 directly. So you can use break Sysenter_do_call.Summary, through their own use of the teacher's code, can be used in the smallest Linux system to write the underlying commands, although not fully understand the operation of the mechanism, but a rough understanding of the system calls the approximate process, the kernel will often use and hardware to interact with the code encapsulated as a service rou

directly interrupted to the corresponding function, but GETUID-ASM uses the interrupt int 0x80 directly. So you can use break Sysenter_do_call.Summary, through their own use of the teacher's code, can be used in the smallest Linux system to write the underlying commands, although not fully understand the operation of the mechanism, but a rough understanding of the system calls the approximate process, the kernel will often use and hardware to interact with the code encapsulated as a service rou

, be sure to install the following program, the most annoying is that these prerequisite programs are not installed by default. So, please use the search function to find these programs and then hook yourself up and be sure to install: 1. Search g++ and GCC, and put the corresponding procedures on the hook; GCC too much, not screenshots, have GCC can hook up on it, better kill the wrong, do not let go. By the way, I've already installed it, so I can see that the new column in the picture is ke

VELT-0.1.5 development: Using kgdb to debug Linux kernel, velt-0.1.5kgdb VELT is short for Visual EmbedLinuxTools. It is a visual studio plug-in similar to visual gdb to assist in Linux development. With this plug-in, you can develop Linux applications (including compilation and debugging) in visual studio IDE, or compile uboot and Linux kernel, the source code i

This article describes how to implement a convenient graphical interface for debugging in sublime text by installing the Sublimegdb plugin. In the previous article sublime text 3, configuring the C + + compilation environment, we introduced the method of compiling and running C + + code using sublime text 3. However, only one key to run the code, but can not be one-step debugging is a bit uncomfortable. Although the

Problems with using gdb under linux-ubuntu14.04 Problem: (Gdb) list No symbol table is read. Use the "file" command. The reason is that there is no symbol table in the executable file. Why is there no symbol table? Because the symbol table is used in the compilation process, it will be unavailable after compilation, to add this information to an executable fi

Problem with using gdb under the linux-ubuntu14.04, ubuntu14.04 installation tutorial Problem: (Gdb) list No symbol table is read. Use the "file" command. The reason is that there is no symbol table in the executable file. Why is there no symbol table? Because the symbol table is used in the compilation process, it will be unavailable after compilation, to ad

Tags: http io ar using SP for file div onUsing virtual machine VMware Workstation 10Linux environment: Ubuntu 14.04 LTS Server AMD64I'll take the process as follows.The first is the Hello World program: NOTE: gcc-o parameter, specifying the generator file name. GDB, the Disas command corresponds to English as disassembler, disassembly. There is no execution program here. If you want to do this, it will appe

MAP1 All Go source files under the directory and its subdirectories.gofmtYou can also -r implement simple refactoring of the code by adding the substitution rules enclosed in double quotation marks to the parameter, the format of the rule: .Instance:Gofmt-r ' (a)-a ' –w *.goThe code above will strip out the meaningless parentheses in the source file.Gofmt-r ' A[n:len (a)], A[n:] ' –w *.goThe above code will remove the excess in the source file len(a) . (Translator Note: Understand the slices (