I recently started using ABCL, and until now I've been able to use it fine through the Emacs/Slime interface.
I'm now trying to use ABCL directly from the command line, but I have no idea what the debugger commands are. Once a runtime error occurs and I am offered the list of possible restarts, how do I check the current frame and step through the backtrace?
Is there documentation on this somewhere? Or, can someone tell me what some of the basic commands are?
I'm running the latest ABCL on Fedora 14 x64.
- Thank you! - David W.
Hi David,
On Mon, May 16, 2011 at 8:35 PM, David C Wang davidcw@mit.edu wrote:
I recently started using ABCL, and until now I've been able to use it fine through the Emacs/Slime interface.
I'm now trying to use ABCL directly from the command line, but I have no idea what the debugger commands are. Once a runtime error occurs and I am offered the list of possible restarts, how do I check the current frame and step through the backtrace?
:bt <num> lists the last <num> frames in the stack. These additional commands are available:
D:\abcl\abcl-j>abcl Armed Bear Common Lisp 0.26.0-dev-svn-13273:13274M Java 1.6.0_20 Sun Microsystems Inc. Java HotSpot(TM) Client VM Low-level initialization completed in 1.434 seconds. Startup completed in 5.417 seconds. Type ":help" for a list of available commands. CL-USER(1): :help
COMMAND ABBR DESCRIPTION apropos ap apropos bt backtrace n stack frames (default 8) cd change default directory cf compile file(s) cload cl compile and load file(s) continue cont invoke restart n describe de describe an object error err print the current error message exit ex exit lisp frame fr set the value of cl:* to be frame n (default 0) help he print this help inspect in inspect an object istep i navigate within inspection of an object ld load a file ls list directory macroexpand ma macroexpand an expression package pa change *PACKAGE* pwd pw print current directory reset res return to top level rq require a module trace tr trace function(s) untrace untr untrace function(s)
Commands must be prefixed by the command character, which is ':' by default.
Is there documentation on this somewhere? Or, can someone tell me what some of the basic commands are?
The documentation (as terse as it is) is under :help :-)
The way to select a specific restart is by entering its number.
I'm running the latest ABCL on Fedora 14 x64.
I hope you like it. If you don't mind me asking: what are you (planning to) using ABCL for? Scripting language? Main language? Which area of application? I'm always interested to hear people's stories about their ABCL experience.
Bye,
Erik.
Thanks for the tip! That'll make it a LOT easier to debug. = )
I'm in a research group at MIT developing automated planning algorithms. We've used AllegroCL for a long time, but we're finding more and more of a need to integrate our Lisp code base with Java. ABCL has a very nice Lisp-Java interface that we're leveraging so we don't have to read/write files or use a TPC/RPC/messaging interface.
- David W.
Quoting Erik Huelsmann ehuels@gmail.com:
Hi David,
On Mon, May 16, 2011 at 8:35 PM, David C Wang davidcw@mit.edu wrote:
I recently started using ABCL, and until now I've been able to use it fine through the Emacs/Slime interface.
I'm now trying to use ABCL directly from the command line, but I have no idea what the debugger commands are. Once a runtime error occurs and I am offered the list of possible restarts, how do I check the current frame and step through the backtrace?
:bt <num> lists the last <num> frames in the stack. These additional commands are available:
D:\abcl\abcl-j>abcl Armed Bear Common Lisp 0.26.0-dev-svn-13273:13274M Java 1.6.0_20 Sun Microsystems Inc. Java HotSpot(TM) Client VM Low-level initialization completed in 1.434 seconds. Startup completed in 5.417 seconds. Type ":help" for a list of available commands. CL-USER(1): :help
COMMAND ABBR DESCRIPTION apropos ap apropos bt backtrace n stack frames (default 8) cd change default directory cf compile file(s) cload cl compile and load file(s) continue cont invoke restart n describe de describe an object error err print the current error message exit ex exit lisp frame fr set the value of cl:* to be frame n (default 0) help he print this help inspect in inspect an object istep i navigate within inspection of an object ld load a file ls list directory macroexpand ma macroexpand an expression package pa change *PACKAGE* pwd pw print current directory reset res return to top level rq require a module trace tr trace function(s) untrace untr untrace function(s)
Commands must be prefixed by the command character, which is ':' by default.
Is there documentation on this somewhere? Or, can someone tell me what some of the basic commands are?
The documentation (as terse as it is) is under :help :-)
The way to select a specific restart is by entering its number.
I'm running the latest ABCL on Fedora 14 x64.
I hope you like it. If you don't mind me asking: what are you (planning to) using ABCL for? Scripting language? Main language? Which area of application? I'm always interested to hear people's stories about their ABCL experience.
Bye,
Erik.
armedbear-devel@common-lisp.net
-
David C Wang -
Erik Huelsmann