https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94311
--- Comment #7 from Mark Wielaard <mark at gcc dot gnu.org> --- Note that the above is in ./install/lib/valgrind/memcheck-amd64-linux Which has .debug_line entries like: [0x00098404] Set is_stmt to 0 [0x00098405] Advance PC by constant 17 to 0x5809993c [0x00098406] Special opcode 103: advance Address by 7 to 0x58099943 and Line by 0 to 13372 [0x00098407] Set is_stmt to 1 [0x00098408] Advance Line by 23257547 to 23270919 [0x0009840d] Special opcode 145: advance Address by 10 to 0x5809994d and Line by 0 to 23270919 [0x0009840e] Advance Line by 58034 to 23328953 [0x00098412] Special opcode 117: advance Address by 8 to 0x58099955 and Line by 0 to 23328953 [0x00098413] Advance Line by 75462 to 23404415 [0x00098417] Special opcode 131: advance Address by 9 to 0x5809995e and Line by 0 to 23404415 [0x00098418] Advance Line by -23388426 to 15989 [0x0009841d] Special opcode 187: advance Address by 13 to 0x5809996b and Line by 0 to 15989 with readelf --debug-dump=decodedline we see: priv/guest_amd64_toIR.c: guest_amd64_toIR.c 1505 0x580998b8 x guest_amd64_toIR.c 23769 0x580998d8 x guest_amd64_toIR.c 10611 0x580998f1 x guest_amd64_toIR.c 10611 0x580998f8 guest_amd64_toIR.c 10610 0x580998f8 1 x guest_amd64_toIR.c 24067 0x58099900 x guest_amd64_toIR.c 24067 0x58099900 1 guest_amd64_toIR.c 13368 0x58099917 x guest_amd64_toIR.c 13368 0x5809991e guest_amd64_toIR.c 14968 0x5809991e 1 x guest_amd64_toIR.c 13368 0x58099926 x guest_amd64_toIR.c 13368 0x5809992b guest_amd64_toIR.c 13372 0x5809992b 1 x guest_amd64_toIR.c 13372 0x58099943 guest_amd64_toIR.c 23270919 0x5809994d x guest_amd64_toIR.c 23328953 0x58099955 x guest_amd64_toIR.c 23404415 0x5809995e x guest_amd64_toIR.c 15989 0x5809996b x guest_amd64_toIR.c 15989 0x58099970 guest_amd64_toIR.c 15055 0x58099970 1 x guest_amd64_toIR.c 1254 0x5809997d x guest_amd64_toIR.c 1253 0x58099980 x guest_amd64_toIR.c 226 0x58099982 x guest_amd64_toIR.c 226 0x58099987 guest_amd64_toIR.c 14316 0x58099987 1 x guest_amd64_toIR.c 226 0x5809998c x guest_amd64_toIR.c 226 0x58099993 guest_amd64_toIR.c 14316 0x58099993 1 x guest_amd64_toIR.c 14315 0x58099996 x guest_amd64_toIR.c 14316 0x58099999 x guest_amd64_toIR.c 226 0x5809999c x guest_amd64_toIR.c 226 0x580999a0 guest_amd64_toIR.c 14316 0x580999a0 1 x guest_amd64_toIR.c 14316 0x580999a2 guest_amd64_toIR.c 226 0x580999a2 1 x guest_amd64_toIR.c 226 0x580999a7 guest_amd64_toIR.c 226 0x580999b4 guest_amd64_toIR.c 226 0x580999c5 guest_amd64_toIR.c 226 0x580999ca guest_amd64_toIR.c 226 0x580999d7 guest_amd64_toIR.c 226 0x580999dc guest_amd64_toIR.c 5664 0x580999dc 1 x guest_amd64_toIR.c 226 0x580999e0 x guest_amd64_toIR.c 226 0x580999e4 guest_amd64_toIR.c 5664 0x580999e4 1 x