When testing SYCL programs on some backend based on Clang 14, it is noticed that the gdb-9 bundled with Ubuntu 20.04 cannot correctly read debug info of binary produced by clang-14, then stack info is not available at all.
Although haven’t figured out why, compiling & installing a gdb-13 simply fixes this problem.
NOTE: tested with vendor-specific compiler based on clang-14, not sure if applicable to vanilla Clang.