On Wed, 01 Aug 2007 09:27:42 +0200, Caolan McNamara wrote: > On Tue, 2007-07-31 at 15:08 -0700, Roland McGrath wrote: ... > > In F8 with build IDs, having nothing but the core dump file will be enough > > to easily determine (offline, later) all the packages that were involved. > > This sounds sort of tantalising, especially the F8 timeframe. What are > the details ? Roland's info: http://fedoraproject.org/wiki/Releases/FeatureBuildId There is going to be GDB with the support in F8 - it loads the right executable + libraries just being given the core file. One of the test builds was: http://koji.fedoraproject.org/koji/taskinfo?taskID=76292 But it needs /usr/lib/debug/.build-id symlinks still not present in the current F8test1/Rawhide, the symlinks should exist for F8test2 (test3?). I see it should give there a warning if the symlink is missing to be able to: yum install /usr/lib/debug/.build-id/c8/eba3e0886b625d58b803f6b924b4a76d3daeb2 # installs the executable/library yum install /usr/lib/debug/.build-id/c8/eba3e0886b625d58b803f6b924b4a76d3daeb2.debug # installs the associated -debuginfo package Regards, Jan BEFORE: $ gdb -c /tmp/buildmainlib/headers Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `../buildmain'. Program terminated with signal 11, Segmentation fault. #0 0x00000000004005b6 in ?? () (gdb) bt #0 0x00000000004005b6 in ?? () #1 0x0000000000000000 in ?? () (gdb) info sharedlibrary No shared libraries loaded at this time. (gdb) _ AFTER: $ gdb -c /tmp/buildmainlib/headers Using host libthread_db library "/lib64/libthread_db.so.1". Core was generated by `../buildmain'. Program terminated with signal 11, Segmentation fault. Reading symbols from /tmp/buildmain.debug-x...done. warning: Can't read pathname for load map: Input/output error. #0 0x00000000004005b6 in main () at buildmain.c:6 6 *(int *) 0 = 0; (gdb) bt #0 0x00000000004005b6 in main () at buildmain.c:6 #1 0x000000300041dab4 in __libc_start_main () from /lib64/libc.so.6 #2 0x00000000004004f9 in ?? () #3 0x00007fff1907c548 in ?? () #4 0x0000000000000000 in ?? () (gdb) info sharedlibrary >From To Syms Read Shared Object Library 0x00002aaaaaaad460 0x00002aaaaaaad578 Yes /tmp/buildlib.so # /tmp/buildlib.so would not be found due to no LD_LIBRARY_PATH without buildid 0x000000300041d8a0 0x00000030005068b8 Yes /lib64/libc.so.6 0x0000003000000a60 0x00000030000155d4 Yes /lib64/ld-linux-x86-64.so.2 (gdb) _ -- fedora-devel-list mailing list fedora-devel-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/fedora-devel-list
