Hey Sara, I installed latest Xcode and switched to latest lldb. Its working for me. Thanks again! -Prabhat
From: Sara Burke Sent: Thursday, November 01, 2012 1:40 PM To: Greg Clayton Cc: Sara Burke; [email protected]; Prabhat Verma Subject: Re: [lldb-dev] How to debug a core file with lldb? Great, thanks Greg. I must not have the most up-to-date lldb version, for I see the following when I do the same commands: (lldb) version LLDB-112.2 (lldb) apropos core No commands found pertaining to 'core'. Try 'help' to see a complete list of debugger commands. (lldb) help target create Create a target using the argument as the main executable. Syntax: target create <cmd-options> <filename> Command Options Usage: target create [-a <arch>] [-p <platform-name>] [-v <none>] [-b <none>] [-s <filename>] <filename> -a <arch> ( --arch <arch> ) Specify the architecture for the target. -b ( --build ) Specify the initial SDK build number. -p <platform-name> ( --platform <platform-name> ) Specify name of the platform to use for this target, creating the platform if necessary. -s <filename> ( --sysroot <filename> ) Specify the SDK root directory that contains a root of all remote system files. -v ( --version ) Specify the initial SDK version to use prior to connecting. (lldb) target create --core /cores/core.1235 lldb: unrecognized option `--core' error: unknown or ambiguous option Could you tell me what vernon of lldb the core support is in? Thanks! On Nov 1, 2012, at 1:35 PM, Greg Clayton wrote: On Nov 1, 2012, at 8:30 AM, Sara Burke <[email protected]<mailto:[email protected]>> wrote: Hi lldb-dev, I have a question regarding debugging a core file. With gdb, one can specify -c <core_file> to debug a core file. However, I can find no documentation to do this with lldb. Is there such a way? lldb seems to think the core file is an executable, which isn't necessarily what I would like. Any suggestions? (lldb) apropos core The following commands may relate to 'core': target create -- Create a target using the argument as the main executable. (lldb) help target create Create a target using the argument as the main executable. Syntax: target create <cmd-options> <filename> Command Options Usage: target create [-a <arch>] [-p <platform-name>] [-v <none>] [-b <none>] [-s <filename>] [-c <path>] <filename> -a <arch> ( --arch <arch> ) Specify the architecture for the target. -b ( --build ) Specify the initial SDK build number. -c <path> ( --core <path> ) Fullpath to a core file to use for this target. -p <platform-name> ( --platform <platform-name> ) Specify name of the platform to use for this target, creating the platform if necessary. -s <filename> ( --sysroot <filename> ) Specify the SDK root directory that contains a root of all remote system files. -v ( --version ) Specify the initial SDK version to use prior to connecting. This command takes options and arguments, if your arguments look like option specifiers you must use '--' to terminate the options before starting to give the arguments. So there is documentation. (lldb) target create --core /cores/core.1235 You can optionally give us the architecture and/or executable file if you know them: (lldb) target create --core /cores/core.1235 --arch x86_64 /path/to/executable After this commend, you can then do a: (lldb) thread list (lldb) thread backtrace all Core files only work for mach-o core files right now. ELF support hasn't been done yet, but there is good sample code to follow in the following directory: lldb/source/Plugins/Process/mach-core ----------------------------------------------------------------- Sara M. Burke Ext. 7476
_______________________________________________ lldb-dev mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
