pid
Function Offset Probes
The pid
provider lets you trace any instruction in a function. For example to trace the instruction 4
bytes into a function main
, you can use the following command:
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 to examine process state at these probe sites. For more information, see uregs[] Array.