Hi, there have been submitted these Bugs: Drop the gcc dependency https://bugzilla.redhat.com/show_bug.cgi?id=1195005 gdb pulls in devel packages (gcc, kernel-headers, etc.) [former Summary] https://bugzilla.redhat.com/show_bug.cgi?id=1306591 due to recent GDBs having new: Recommends: gcc-gdb-plugin%{?_isa} which brings in the whole GCC compiler. Reasons for this new Recommends are at the bottom of this mail labeled: Why to use gcc-gdb-plugin Given that ABRT is installed by default and ABRT Requires: gdb this dependency installs GCC now even on servers and end-user machines (AFAIK, I haven't tried that but it does make sense). I believe that from the error message: (gdb) compile print EXPRESSION Could not load libcc1.so: libcc1.so: cannot open shared object file: No such file or directory a Fedora user does not realize s/he should run: # dnf install gcc-gdb-plugin Which is why I made it Recommends and not Suggests. Also in the close future GDB will provide more functional (gdb) print EXPRESSION feature only with gcc-gdb-plugin installed. Just ABRT does not need 'print EXPRESSION' to use gcc-gdb-plugin but I guess any user running GDB interatively does use 'print EXPRESSION'. Unrelated to gcc-gdb-plugin there is already this 'dnf'-suggesting GDB message: $ gdb -q true Missing separate debuginfos, use: dnf debuginfo-install coreutils-8.25-14.fc25.x86_64 (gdb) _ Therefore I could patch Fedora GDB to also print instead: (gdb) compile print EXPRESSION Missing compiler, use: dnf install gcc-gdb-plugin But that debuginfo-install command is already wrong on its own, despite Fedora GDB prints that for 8 years now (sure with yum before). One inconvenience is that one has to copy-paste it, instead of just some YES confirmation to run that command. But GUI users probably do not want to run 'dnf' from a shell - they want to run some GUI package manager instead (I do not know which one). One can also see that such message does not work for GUI frontends of GDB: $ cdtdebug -e true If you do not have coreutils-debuginfo.rpm installed then Eclipse will print just: No source available for "main() at 0x555555557480" without any hint one could run debuginfo-install to fix that. Another possibility is to change ABRT so that it only Suggests GDB and ABRT provides some user interface to install gdb.rpm upon demand: https://bugzilla.redhat.com/show_bug.cgi?id=1195005#c18 This just moves this problem from GDB to ABRT. As a summary: Is there a 'sudo dnf install' (and 'sudo dnf debuginfo-install') like command which does use GUI package manager if $DISPLAY is available? GDB could also run some different command if $DISPLAY is available. Is this the recommended solution? Or should I submit a FESCo ticket? Thanks, Jan ------------------------------------------------------------------------------ Why to use gcc-gdb-plugin: The primary goal is to support complex expressions needed for C++ debugging. Unfortunately current GDB does not yet support gcc-gdb-plugin for C++, currently only C is supported. Therefore providing a usecase for C below. More thorough background about C++ can be found at: https://sourceware.org/gdb/wiki/GCCCompileAndExecute#History_and_Genesis gcc-gdb-plugin is now required for (gdb) compile print ... such as: echo -e '#include <math.h>\nint main(){return (int)HUGE_VAL;}' >1.c|gcc -Wall -g3 1.c;gdb -q ./a.out -ex start Reading symbols from ./a.out...done. Temporary breakpoint 1 at 0x4004aa: file 1.c, line 2. Starting program: /tmp/a.out Temporary breakpoint 1, main () at 1.c:2 2 int main(){return (int)HUGE_VAL;} (gdb) info macro HUGE_VAL Defined at /usr/include/bits/huge_val.h:27 included at /usr/include/math.h:36 included at /tmp/1.c:1 #define HUGE_VAL (__builtin_huge_val()) -> (gdb) print HUGE_VAL No symbol "__builtin_huge_val" in current context. vs. (gdb) compile print HUGE_VAL $1 = inf Without gcc-gdb-plugin GDB would print only: (gdb) compile print HUGE_VAL Could not load libcc1.so: libcc1.so: cannot open shared object file: No such file or directory Additionally it is expected that future GDB will use (gdb) compile print EXPRESSION for any use of: (gdb) compile EXPRESSION -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://lists.fedoraproject.org/admin/lists/devel@xxxxxxxxxxxxxxxxxxxxxxx
