Package: gdb Version: 13.1-3 Severity: normal X-Debbugs-Cc: duncan82...@live.ca
Dear Maintainer, I have a small project built with C and Rust using Meson. When I build the project and try to set a breakpoint with tab-completion, GDB exits with a std::length_error, seemingly only for some symbols. I can't produce it with a Cargo-built program, but I can with a skeleton Meson project, which I'll refer to for the rest of this report: $ mkdir proj # or whatever $ cd $_ $ meson init -l rust [...] $ meson setup build [...] $ meson compile -C build [...] $ gdb ./build/proj [...] warning: Missing auto-load script at offset 0 in section .debug_gdb_scripts of file /tmp/proj/build/proj. (gdb) b q<Tab> *** nothing happens, just beeping *** (if target is run first, includes e.g. 'qsort') (gdb) b a<Tab><Tab> Display all 145 possibilities? (y or n) y [... symbols, including 'abbrev.rs' and 'alloc::alloc::box_free::h293b7814a118f9bc' ...] (gdb) b c<Tab> terminate called after throwing an instance of 'std::length_error' what(): basic_string::_M_replace Fatal signal: Aborted ----- Backtrace ----- [below] --------------------- A fatal error internal to GDB has been detected, further debugging is not possible. GDB will now terminate. This is a bug, please report it. For instructions, see: <https://www.gnu.org/software/gdb/bugs/>. Aborted (core dumped) The executable does work in lldb. Most of the rest of GDB probably works, too; the completion seems to be the only broken thing. A bunch of letters aside from 'c' (e.g. 'l', 'w') also crash; my guess is that there's a bunch of functions that mess GDB up, and they're in core:: or similar. I'm running rustc from rustup, version rustc 1.72.0-nightly (d59363ad0 2023-06-01) I originally found it with rustc 1.71.0-nightly (5ea3f0ae0 2023-05-23) I've attached the backtrace below; my apologies for the missing symbols before the abort(). It seems to be in a C++ destructor, but I can't figure out which (or which package provides the symbols in question.) ----- Backtrace ----- 0x55f3d0ab340e gdb_internal_backtrace_1 /build/gdb-kUlB6r/gdb-13.1/gdb/bt-utils.c:122 0x55f3d0ab340e _Z22gdb_internal_backtracev /build/gdb-kUlB6r/gdb-13.1/gdb/bt-utils.c:168 0x55f3d0bbc601 handle_fatal_signal /build/gdb-kUlB6r/gdb-13.1/gdb/event-top.c:956 0x7fbab3a5af8f ??? ./signal/../sysdeps/unix/sysv/linux/x86_64/libc_sigaction.c:0 0x7fbab3aa9ccc __pthread_kill_implementation ./nptl/pthread_kill.c:44 0x7fbab3a5aef1 __GI_raise ../sysdeps/posix/raise.c:26 0x7fbab3a45471 __GI_abort ./stdlib/abort.c:79 0x7fbab3c9d918 ??? 0x7fbab3ca8e19 ??? 0x7fbab3ca7e88 ??? 0x7fbab3ca85a5 ??? 0x7fbab49ce933 ??? 0x7fbab49cf38c ??? 0x55f3d09f9f49 _ZNKSt14default_deleteI13location_specEclEPS0_ /usr/include/c++/12/bits/unique_ptr.h:95 0x55f3d09f9f49 _ZNSt10unique_ptrI13location_specSt14default_deleteIS0_EED4Ev /usr/include/c++/12/bits/unique_ptr.h:396 0x55f3d09f9f49 _Z18location_completerP16cmd_list_elementR18completion_trackerPKcS4_ /build/gdb-kUlB6r/gdb-13.1/gdb/completer.c:1042 0x55f3d0b131ca complete_line_internal_1 /build/gdb-kUlB6r/gdb-13.1/gdb/completer.c:1438 0x55f3d0b13245 complete_line_internal /build/gdb-kUlB6r/gdb-13.1/gdb/completer.c:1457 0x55f3d0b1339a gdb_completion_word_break_characters_throw /build/gdb-kUlB6r/gdb-13.1/gdb/completer.c:1907 0x55f3d0b1339a _Z36gdb_completion_word_break_charactersv /build/gdb-kUlB6r/gdb-13.1/gdb/completer.c:1945 0x7fbab4c3dec5 _rl_find_completion_word ./complete.c:1091 0x7fbab4c3f263 rl_complete_internal ./complete.c:2027 0x7fbab4c3443f _rl_dispatch_subseq ./readline.c:916 0x7fbab4c34a8c readline_internal_char ./readline.c:675 0x7fbab4c52644 rl_callback_read_char ./callback.c:272 0x55f3d0bbd7fd gdb_rl_callback_read_char_wrapper_noexcept /build/gdb-kUlB6r/gdb-13.1/gdb/event-top.c:188 0x55f3d0bbd98f gdb_rl_callback_read_char_wrapper /build/gdb-kUlB6r/gdb-13.1/gdb/event-top.c:221 0x55f3d0bbcd0c stdin_event_handler /build/gdb-kUlB6r/gdb-13.1/gdb/event-top.c:541 0x55f3d0fa41d5 gdb_wait_for_event /build/gdb-kUlB6r/gdb-13.1/gdbsupport/event-loop.cc:716 0x55f3d0fa4cb2 _Z16gdb_do_one_eventi /build/gdb-kUlB6r/gdb-13.1/gdbsupport/event-loop.cc:264 0x55f3d0c862f9 start_event_loop /build/gdb-kUlB6r/gdb-13.1/gdb/main.c:411 0x55f3d0c862f9 captured_command_loop /build/gdb-kUlB6r/gdb-13.1/gdb/main.c:471 0x55f3d0c87f74 captured_main /build/gdb-kUlB6r/gdb-13.1/gdb/main.c:1330 0x55f3d0c87f74 _Z8gdb_mainP18captured_main_args /build/gdb-kUlB6r/gdb-13.1/gdb/main.c:1345 0x55f3d0a16ca9 main /build/gdb-kUlB6r/gdb-13.1/gdb/gdb.c:32 --------------------- -- System Information: Debian Release: 12.0 APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'unstable') Architecture: amd64 (x86_64) Kernel: Linux 6.1.0-9-amd64 (SMP w/8 CPU threads; PREEMPT) Kernel taint flags: TAINT_WARN Locale: LANG=en_CA.UTF-8, LC_CTYPE=en_CA.UTF-8 (charmap=UTF-8), LANGUAGE=en_CA:en Shell: /bin/sh linked to /usr/bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages gdb depends on: ii libbabeltrace1 1.5.11-1+b2 ii libc6 2.36-9 ii libdebuginfod1 0.188-2.1 ii libexpat1 2.5.0-1 ii libgcc-s1 12.2.0-14 ii libgmp10 2:6.2.1+dfsg1-1.1 ii libipt2 2.0.5-1 ii liblzma5 5.4.1-0.2 ii libmpfr6 4.2.0-1 ii libncursesw6 6.4-4 ii libpython3.11 3.11.2-6 ii libreadline8 8.2-1.3 ii libsource-highlight4v5 3.1.9-4.2+b3 ii libstdc++6 12.2.0-14 ii libtinfo6 6.4-4 ii libxxhash0 0.8.1-1 ii libzstd1 1.5.4+dfsg2-5 ii zlib1g 1:1.2.13.dfsg-1 Versions of packages gdb recommends: ii libc6-dbg [libc-dbg] 2.36-9 Versions of packages gdb suggests: pn gdb-doc <none> pn gdbserver <none> -- no debconf information