CodeXL User GuideCPU Profile PLT Relocations
On Linux platforms, CodeXL CPU Profiler attributes and reports the samples that belong to Procedure Linkage Table (PLT) section. PLT information is generated by compiler, which is used by dynamic linker/loader to link the application with its dependent dynamic libraries. Samples that are attributed to PLT instructions are reported against “[PLT] <function-name>” symbol. For example, an application calling a library function rand() will have an corresponding entry for this function in the PLT section. Samples attributed to this PLT entry will be shown as “[PLT] rand” and samples due to actual rand() function will be attributed to “rand()” function entry in the session views.