Branch Tracer utilizes Pentium4's debugging function, the branch record mechanism, to trace branch instructions. This tool is designed to track and debug branches for developers working on Pentium4 systems.
Branch Tracer, also known as btrax, is an advanced branch instruction tracer that uses the branch record mechanism for debugging purposes on Pentium4 and Xeon CPU systems. It provides the ability to trace branch instructions on various components without any modification to the kernel source code. Additionally, traced log information is analyzed to display branch coverage information and execution path.
btrax is comprised of two main components, the branch instruction tracer and the traced log analyzer. The branch instruction tracer includes drivers such as djprobe, ctr, and relayfs that enables the hook point without changing the kernel source. The traced log analyzer is made up of programs like bt_split, bt_coverage, and bt_execpath that analyze the branch coverage information and execution path.
Key features of Branch Tracer include its ability to support the trace of various components like applications, libraries, kernels, and drivers. The trace of the application and kernel differs based on the method used. The tool allows the specification of the address to be analyzed with information on branch coverage, execution path, and the function coverage that can be analyzed.
To compile and execute btrax, the machine needs to be equipped with Pentium4 and Xeon CPU. Further, kernel header files, uncompressed vmlinux, and binutils, are necessary for building the driver's compilation. The kernel should also support procfs, kallsyms, and apic.
Overall, btrax works efficiently and effectively with RedHat Enterprise Linux App Server 4 Update 1 (2.6.9-11.ELsmp). It provides a powerful solution for tracing that can be used for debugging purposes without any complications.
btrax is comprised of two main components, the branch instruction tracer and the traced log analyzer. The branch instruction tracer includes drivers such as djprobe, ctr, and relayfs that enables the hook point without changing the kernel source. The traced log analyzer is made up of programs like bt_split, bt_coverage, and bt_execpath that analyze the branch coverage information and execution path.
Key features of Branch Tracer include its ability to support the trace of various components like applications, libraries, kernels, and drivers. The trace of the application and kernel differs based on the method used. The tool allows the specification of the address to be analyzed with information on branch coverage, execution path, and the function coverage that can be analyzed.
To compile and execute btrax, the machine needs to be equipped with Pentium4 and Xeon CPU. Further, kernel header files, uncompressed vmlinux, and binutils, are necessary for building the driver's compilation. The kernel should also support procfs, kallsyms, and apic.
Overall, btrax works efficiently and effectively with RedHat Enterprise Linux App Server 4 Update 1 (2.6.9-11.ELsmp). It provides a powerful solution for tracing that can be used for debugging purposes without any complications.
What's New
Version 1.0.3: N/A