https://sourceware.org/bugzilla/show_bug.cgi?id=27925
--- Comment #1 from William Cohen <wcohen at redhat dot com> --- Created attachment 13669 --> https://sourceware.org/bugzilla/attachment.cgi?id=13669&action=edit Possibe patch to provide return value information for lp64 abi This patch applies to elfutils 0.183 in fedora 33 and builds successfully. When running the systemtap examples testsuite there were a number of probe handlers that needed $return information what no longer complained about being unable to find the $return like the following with the patched elfutils for pfault.stp example: $ sudo ../install/bin/stap -v testsuite/systemtap.examples/memory/pfaults.stp Pass 1: parsed user script and 462 library scripts using 307316virt/76224res/10492shr/65720data kb, in 3020usr/560sys/3602real ms. Pass 2: analyzed script: 3 probes, 7 functions, 2 embeds, 7 globals using 422972virt/182640res/11412shr/181376data kb, in 10500usr/1900sys/12425real ms. Pass 3: translated to C into "/tmp/stapFHW9Zg/stap_aeb36ff31c1e99bccaad8645b97de810_4982_src.c" using 422972virt/182768res/11540shr/181376data kb, in 300usr/940sys/1247real ms. Pass 4: compiled C into "stap_aeb36ff31c1e99bccaad8645b97de810_4982.ko" in 51270usr/5930sys/51419real ms. Pass 5: starting run. ^CPass 5: run completed in 1350usr/2510sys/300065real ms. Previously with the unpatched elfutils: $ sudo ../install/bin/stap -v testsuite/systemtap.examples/memory/pfaults.stp Pass 1: parsed user script and 462 library scripts using 307316virt/76260res/10528shr/65720data kb, in 3710usr/640sys/4447real ms. semantic error: failed to retrieve return value location for handle_mm_fault [man error::dwarf] (mm/memory.c): identifier '$return' at /home/riscv/systemtap_write/install/share/systemtap/tapset/linux/memory.stp:91:15 source: fault_type = $return ^ Pass 2: analyzed script: 3 probes, 6 functions, 2 embeds, 7 globals using 422972virt/182872res/11644shr/181376data kb, in 12180usr/2310sys/14710real ms. Pass 2: analysis failed. [man error::pass2] -- You are receiving this mail because: You are on the CC list for the bug.
