The pid
provider lets you trace any instruction in a function. For example to trace the instruction 4 bytes into a function main
, you could use a command similar to the following example:
pid123:a.out:main:4
Every time the program executes the instruction at address main+4
, this probe will be activated. The arguments for offset probes are undefined. The uregs[]
array will help you examine process state at these probe sites. See
uregs[]
Array for more information.