Debugging an OpenCL™ Application
Starting with the 2023.0 release of oneAPI, debugging OpenCL™ applications is not supported. For earlier versions (2022.x and earlier), see the instructions below.
To debug OpenCL™ applications with Intel® Distribution for GDB* version 2022.3 (based on GDB 11.2), make sure you use the following flags when calling the clBuildProgram function:
-g -cl-opt-disable to enable the debug information and disable optimizations inside the kernel
-s <full_path_to_kernel.cl> to point to the kernel source file.
This allows you to set a breakpoint in the following format: breakpoint kernel.cl:<line number>.
Launch the debugger as follows:
gdb-oneapi <application>To start debugging, you must set a pending breakpoint because the kernel source file is not known to the debugger yet:
set breakpoint pending onbreak kernel.cl:<line number>runAt runtime, the kernel sources are loaded to the debugger and the breakpoint is hit, both for CPU and GPU offloads.