A debugger that shows the programmer the line or expression in the source code that resulted in a particular machine code instruction of a running program loaded in memory. This helps the programmer to analyse a program’s behaviour in the high-level terms like source-level flow control constructs, procedure calls, named variables, etc instead of machine instructions and memory locations. Source-level debugging also makes it possible to step through execution a line at a time and set source-level breakpoints.
In order to support source-level debugging, the program must be compiled with this option enabled so that extra information is included in the executable code to identify the corresponding positions in the source code.
A symbolic debugger is one level lower – it displays symbols (procedure and variable names) stored in the executable but not individual source code lines.
GDB is a widely used example of a source-level debugger.
noun 1. original, authoritative, or basic materials utilized in research, as diaries or manuscripts.
- Source of all good bits
jargon, job A person from whom (or a place from which) useful information may be obtained. If you need to know about a program, a guru might be the source of all good bits. The title is often applied to a particularly competent secretary. [Jargon File] (2001-01-27)
- Source package
software A collection (usually an archive file) containing all the files necessary to build and modify a piece of software. A Debian source package includes the original source archive (.orig.tar.gz), Debianisation diffs (-.diff.gz) and a Debian source control file (-.dsc). (2000-05-31)
- Source program
noun 1. an original computer program written by a programmer that is converted into the equivalent object program, written in machine language, by the compiler or assembler