Fix gprof profiling for PRX modules#344
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sharkwouter merged 1 commit intopspdev:masterfrom Jan 6, 2026
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PRX modules are relocated at load time, causing runtime PC addresses to differ from link-time addresses in the ELF. This made gprof output empty because: 1. Range checks failed (runtime PCs outside link-time range) 2. Addresses in gmon.out didn't match ELF symbols Fix by converting addresses to link-time in __mcount immediately: - Runtime address - &_ftext = link-time address (since _ftext = 0) - Store link-time addresses in arcs and samples - Use link-time range for bounds checking This approach requires no new kernel API imports, ensuring compatibility with real hardware via psplink.
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Fix gprof profiler to work correctly with PRX (relocatable) modules
__mcountfor proper symbol resolutionProblem
When using gprof with PRX modules loaded via psplink or PPSSPP, the profiler
produced empty output. PRX modules are relocated at load time, so runtime PC
addresses don't match the link-time addresses stored in ELF symbols.
Solution
Convert addresses to link-time format immediately in
__mcount: