https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98650
Bug ID: 98650 Summary: Issue within gdb with debugging symbols of telegram-desktop under Debian 10 GNU/Linux amd64 Product: gcc Version: 8.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: demangler Assignee: unassigned at gcc dot gnu.org Reporter: galex-...@galex-713.eu Target Milestone: --- Hello, I was told on a gdb bug (here: https://sourceware.org/bugzilla/show_bug.cgi?id=27176), that I should report here an issue with debugging symbols of telegram-desktop (1.5.11-1) produced by gcc 8.2.0-15 under Debian GNU/Linux 10 amd64, that cause gdb 8.2.1 to say “demangler-warning: unable to demangle” while loading debugging symbols. Here’s the build log: https://buildd.debian.org/status/fetch.php?pkg=telegram-desktop&arch=amd64&ver=1.5.11-1&stamp=1549231362&raw=0 And here’s what gdb says me, as soon as I installed the debugging symbols: GNU gdb (Debian 8.2.1-2+b3) 8.2.1 Copyright (C) 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "x86_64-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from telegram-desktop.../build/gdb-EbRs5Y/gdb-8.2.1/gdb/cp-support.c:1581: demangler-warning: unable to demangle '_ZNSt11_Tuple_implILm0EJN3rpl8producerIN4base5flagsIN11MTPDchannel4FlagEEENS0_8no_errorEZNS0_7details10map_helperIZN4Data18FlagsValueWithMaskINSA_5FlagsIS6_Lj2147486693EE6ChangeES7_ZNS8_11then_helperISE_S7_ZNKS0_12event_streamISE_E6eventsEvEUlRKT_E_EclISE_S7_ZNS0_6singleISE_EEDaOSI_EUlSK_E_SE_S7_EEDaONS1_ISI_T0_T1_EEEUlSK_E_EEDaSU_NSI_4TypeEEUlRKSE_E0_EclISE_S7_ZNS8_13filter_helperIZNSB_ISE_S7_SV_EEDaSU_SW_EUlSY_E_EclISE_S7_SV_vEEDaSU_EUlSK_E_S6_EEDaSU_EUlSK_E_EENS1_IbS7_ZNS9_IZNSA_15SingleFlagValueINSC_INS3_IN19MTPDchatAdminRights4FlagEEELj4294967295EE6ChangeES7_ZNSF_IS1E_S7_ZNKSG_IS1E_E6eventsEvEUlSK_E_EclIS1E_S7_ZNSO_IS1E_EEDaSP_EUlSK_E_S1E_S7_EEDaSU_EUlSK_E_EEDaSU_NSI_4EnumEEUlS1C_E_EclIS1C_S7_ZNS9_IZNSB_IS1E_S7_S1K_EEDaSU_SW_EUlRKS1E_E0_EclIS1E_S7_ZNS12_IZNSB_IS1E_S7_S1K_EEDaSU_SW_EUlS1Q_E_EclIS1E_S7_S1K_vEEDaSU_EUlSK_E_S1C_EEDaSU_EUlSK_E_bEEDaSU_EUlSK_E_EENS1_IbS7_ZNS9_IZNS19_INSC_INS3_IN20MTPDchatBannedRights4FlagEEELj4294967295EE6ChangeES7_ZNSF_IS25_S7_ZNKSG_IS25_E6eventsEvEUlSK_E_EclIS25_S7_ZNSO_IS25_EEDaSP_EUlSK_E_S25_S7_EEDaSU_EUlSK_E_EEDaSU_S1L_EUlS23_E_EclIS23_S7_ZNS9_IZNSB_IS25_S7_S2B_EEDaSU_SW_EUlRKS25_E0_EclIS25_S7_ZNS12_IZNSB_IS25_S7_S2B_EEDaSU_SW_EUlS2G_E_EclIS25_S7_S2B_vEEDaSU_EUlSK_E_S23_EEDaSU_EUlSK_E_bEEDaSU_EUlSK_E_EES2Q_EED1Ev' (demangler failed with signal 11) Unable to dump core, use `ulimit -c unlimited' before executing GDB next time. /build/gdb-EbRs5Y/gdb-8.2.1/gdb/cp-support.c:1595: demangler-warning: unable to demangle '_ZNSt11_Tuple_implILm0EJN3rpl8producerIN4base5flagsIN11MTPDchannel4FlagEEENS0_8no_errorEZNS0_7details10map_helperIZN4Data18FlagsValueWithMaskINSA_5FlagsIS6_Lj2147486693EE6ChangeES7_ZNS8_11then_helperISE_S7_ZNKS0_12event_streamISE_E6eventsEvEUlRKT_E_EclISE_S7_ZNS0_6singleISE_EEDaOSI_EUlSK_E_SE_S7_EEDaONS1_ISI_T0_T1_EEEUlSK_E_EEDaSU_NSI_4TypeEEUlRKSE_E0_EclISE_S7_ZNS8_13filter_helperIZNSB_ISE_S7_SV_EEDaSU_SW_EUlSY_E_EclISE_S7_SV_vEEDaSU_EUlSK_E_S6_EEDaSU_EUlSK_E_EENS1_IbS7_ZNS9_IZNSA_15SingleFlagValueINSC_INS3_IN19MTPDchatAdminRights4FlagEEELj4294967295EE6ChangeES7_ZNSF_IS1E_S7_ZNKSG_IS1E_E6eventsEvEUlSK_E_EclIS1E_S7_ZNSO_IS1E_EEDaSP_EUlSK_E_S1E_S7_EEDaSU_EUlSK_E_EEDaSU_NSI_4EnumEEUlS1C_E_EclIS1C_S7_ZNS9_IZNSB_IS1E_S7_S1K_EEDaSU_SW_EUlRKS1E_E0_EclIS1E_S7_ZNS12_IZNSB_IS1E_S7_S1K_EEDaSU_SW_EUlS1Q_E_EclIS1E_S7_S1K_vEEDaSU_EUlSK_E_S1C_EEDaSU_EUlSK_E_bEEDaSU_EUlSK_E_EENS1_IbS7_ZNS9_IZNS19_INSC_INS3_IN20MTPDchatBannedRights4FlagEEELj4294967295EE6ChangeES7_ZNSF_IS25_S7_ZNKSG_IS25_E6eventsEvEUlSK_E_EclIS25_S7_ZNSO_IS25_EEDaSP_EUlSK_E_S25_S7_EEDaSU_EUlSK_E_EEDaSU_S1L_EUlS23_E_EclIS23_S7_ZNS9_IZNSB_IS25_S7_S2B_EEDaSU_SW_EUlRKS25_E0_EclIS25_S7_ZNS12_IZNSB_IS25_S7_S2B_EEDaSU_SW_EUlS2G_E_EclIS25_S7_S2B_vEEDaSU_EUlSK_E_S23_EEDaSU_EUlSK_E_bEEDaSU_EUlSK_E_EES2Q_EED1Ev' (demangler failed with signal 11) A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n)