Debugging Jikes
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Debugging Jikes
by Colin(Du Li)
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Hi, guys,
I'm a newbie for Jikes. I wanna get some advice to debug Jikes. Now I'm using Jikes 3.1. I can import and edit Jikes source code in Eclipse. But can we launch, trace and debug Jikes in Eclipse? We can use GDB to launch Jikes, but most of Jikes source codes are written in Java, can we debug these Java source codes ? So what's the best way to trace and debug Jikes? I do appreciate your suggestions. Thanks a lot! Colin |
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Re: [rvm-research] Debugging Jikes
by Michael Bond
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Hi Colin,
(1) Jikes doesn't support a standard Java debugging interface that would allow it to be used with Eclipse's debugger (I think the one it would need to support is Java VM Debug Interface: JVMDI). Byeongcheol Lee (CCed but also on the mailing list) has implemented JVMDI support for Jikes, but it's not part of the SVN trunk, and it supports only baseline-compiled code. He said he could send you his patch if you're interested. However, I don't think it's what you want since it's it enables debugging *applications* run by Jikes, rather than debugging Jikes itself. (2) Maybe you've seen this page already: http://jikesrvm.org/Debugging+the+RVM The -gdb flag provides an easy way to run Jikes with gdb. I believe one important advantage of using the -gdb flag is that symbols get passed through to gdb, so you get more information about stack traces in Java code (?). (3) Finally, Jikes has an interactive debugger that you can invoke by sending SIQUIT to Jikes while it's running: pkill -SIGQUIT JikesRVM In previous versions of Jikes, that stopped all threads and provided an interactive prompt, but currently it just dumps the state of the VM and continues immediately (that's a known issue: http://jira.codehaus.org/browse/RVM-570). Also, it appears that a baseline-only version of Jikes, i.e., prototype, doesn't currently support the debugger. It looks like that's because the TimerThread, which launches the debugger (among other things), doesn't run if the adaptive system isn't enabled. I'll open a JIRA on that. In the meantime I'd suggest using a configuration that includes the adaptive system (AOS), e.g., prototype-opt or development or production. Cheers, Mike On Thu, 13 Aug 2009, Colin(Du Li) wrote: > > Hi, guys, > > I'm a newbie for Jikes. I wanna get some advice to debug Jikes. > Now I'm using Jikes 3.1. I can import and edit Jikes source code in Eclipse. > But can we launch, trace and debug Jikes in Eclipse? > > We can use GDB to launch Jikes, but most of Jikes source codes are written > in Java, can we debug these Java source codes ? > > So what's the best way to trace and debug Jikes? > I do appreciate your suggestions. > > Thanks a lot! > > Colin > -- > View this message in context: http://www.nabble.com/Debugging-Jikes-tp24955377p24955377.html > Sent from the jikesrvm-researchers mailing list archive at Nabble.com. > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Jikesrvm-researchers mailing list > Jikesrvm-researchers@... > https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Jikesrvm-researchers mailing list Jikesrvm-researchers@... https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers |
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Re: [rvm-research] Debugging Jikes
by Filip Pizlo-2
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No reason why the TimerThread shouldn't always be started. That
simple change seems to work. Anyone have objections? -Filip On Aug 21, 2009, at 18:49 , Michael Bond wrote: > Hi Colin, > > (1) Jikes doesn't support a standard Java debugging interface that > would > allow it to be used with Eclipse's debugger (I think the one it > would need > to support is Java VM Debug Interface: JVMDI). Byeongcheol Lee > (CCed but > also on the mailing list) has implemented JVMDI support for Jikes, but > it's not part of the SVN trunk, and it supports only baseline-compiled > code. He said he could send you his patch if you're interested. > However, I don't think it's what you want since it's it enables > debugging > *applications* run by Jikes, rather than debugging Jikes itself. > > (2) Maybe you've seen this page already: > > http://jikesrvm.org/Debugging+the+RVM > > The -gdb flag provides an easy way to run Jikes with gdb. I believe > one > important advantage of using the -gdb flag is that symbols get passed > through to gdb, so you get more information about stack traces in Java > code (?). > > (3) Finally, Jikes has an interactive debugger that you can invoke by > sending SIQUIT to Jikes while it's running: > > pkill -SIGQUIT JikesRVM > > In previous versions of Jikes, that stopped all threads and provided > an > interactive prompt, but currently it just dumps the state of the VM > and > continues immediately (that's a known issue: > http://jira.codehaus.org/browse/RVM-570). > > Also, it appears that a baseline-only version of Jikes, i.e., > prototype, > doesn't currently support the debugger. It looks like that's > because the > TimerThread, which launches the debugger (among other things), > doesn't run > if the adaptive system isn't enabled. I'll open a JIRA on that. In > the > meantime I'd suggest using a configuration that includes the adaptive > system (AOS), e.g., prototype-opt or development or production. > > Cheers, > Mike > > > > On Thu, 13 Aug 2009, Colin(Du Li) wrote: > >> >> Hi, guys, >> >> I'm a newbie for Jikes. I wanna get some advice to debug Jikes. >> Now I'm using Jikes 3.1. I can import and edit Jikes source code in >> Eclipse. >> But can we launch, trace and debug Jikes in Eclipse? >> >> We can use GDB to launch Jikes, but most of Jikes source codes are >> written >> in Java, can we debug these Java source codes ? >> >> So what's the best way to trace and debug Jikes? >> I do appreciate your suggestions. >> >> Thanks a lot! >> >> Colin >> -- >> View this message in context: http://www.nabble.com/Debugging-Jikes-tp24955377p24955377.html >> Sent from the jikesrvm-researchers mailing list archive at >> Nabble.com. >> >> >> ------------------------------------------------------------------------------ >> Let Crystal Reports handle the reporting - Free Crystal Reports >> 2008 30-Day >> trial. Simplify your report design, integration and deployment - >> and focus on >> what you do best, core application coding. Discover what's new with >> Crystal Reports now. http://p.sf.net/sfu/bobj-july >> _______________________________________________ >> Jikesrvm-researchers mailing list >> Jikesrvm-researchers@... >> https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers >> > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 > 30-Day > trial. Simplify your report design, integration and deployment - and > focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Jikesrvm-researchers mailing list > Jikesrvm-researchers@... > https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Jikesrvm-researchers mailing list Jikesrvm-researchers@... https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers |
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Re: [rvm-research] Debugging Jikes
by Colin(Du Li)
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Thanks you so much for your detailed reply. It's really helpful.
I wonder if a Eclipse plugin to enable debugging rvm in eclipse will be very useful. Du Li
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Re: [rvm-research] Debugging Jikes
by Michael Bond
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Sounds good. It seems like the TimerThread shouldn't trigger yieldpoints
if the adaptive system isn't enabled (i.e., it should only trigger the debugger thread)? Here's a new issue if anyone has comments: http://jira.codehaus.org/browse/RVM-850 Mike On Fri, 21 Aug 2009, Filip Pizlo wrote: > No reason why the TimerThread shouldn't always be started. That > simple change seems to work. > > Anyone have objections? > > -Filip > > > > On Aug 21, 2009, at 18:49 , Michael Bond wrote: > >> Hi Colin, >> >> (1) Jikes doesn't support a standard Java debugging interface that >> would >> allow it to be used with Eclipse's debugger (I think the one it >> would need >> to support is Java VM Debug Interface: JVMDI). Byeongcheol Lee >> (CCed but >> also on the mailing list) has implemented JVMDI support for Jikes, but >> it's not part of the SVN trunk, and it supports only baseline-compiled >> code. He said he could send you his patch if you're interested. >> However, I don't think it's what you want since it's it enables >> debugging >> *applications* run by Jikes, rather than debugging Jikes itself. >> >> (2) Maybe you've seen this page already: >> >> http://jikesrvm.org/Debugging+the+RVM >> >> The -gdb flag provides an easy way to run Jikes with gdb. I believe >> one >> important advantage of using the -gdb flag is that symbols get passed >> through to gdb, so you get more information about stack traces in Java >> code (?). >> >> (3) Finally, Jikes has an interactive debugger that you can invoke by >> sending SIQUIT to Jikes while it's running: >> >> pkill -SIGQUIT JikesRVM >> >> In previous versions of Jikes, that stopped all threads and provided >> an >> interactive prompt, but currently it just dumps the state of the VM >> and >> continues immediately (that's a known issue: >> http://jira.codehaus.org/browse/RVM-570). >> >> Also, it appears that a baseline-only version of Jikes, i.e., >> prototype, >> doesn't currently support the debugger. It looks like that's >> because the >> TimerThread, which launches the debugger (among other things), >> doesn't run >> if the adaptive system isn't enabled. I'll open a JIRA on that. In >> the >> meantime I'd suggest using a configuration that includes the adaptive >> system (AOS), e.g., prototype-opt or development or production. >> >> Cheers, >> Mike >> >> >> >> On Thu, 13 Aug 2009, Colin(Du Li) wrote: >> >>> >>> Hi, guys, >>> >>> I'm a newbie for Jikes. I wanna get some advice to debug Jikes. >>> Now I'm using Jikes 3.1. I can import and edit Jikes source code in >>> Eclipse. >>> But can we launch, trace and debug Jikes in Eclipse? >>> >>> We can use GDB to launch Jikes, but most of Jikes source codes are >>> written >>> in Java, can we debug these Java source codes ? >>> >>> So what's the best way to trace and debug Jikes? >>> I do appreciate your suggestions. >>> >>> Thanks a lot! >>> >>> Colin >>> -- >>> View this message in context: http://www.nabble.com/Debugging-Jikes-tp24955377p24955377.html >>> Sent from the jikesrvm-researchers mailing list archive at >>> Nabble.com. >>> >>> >>> ------------------------------------------------------------------------------ >>> Let Crystal Reports handle the reporting - Free Crystal Reports >>> 2008 30-Day >>> trial. Simplify your report design, integration and deployment - >>> and focus on >>> what you do best, core application coding. Discover what's new with >>> Crystal Reports now. http://p.sf.net/sfu/bobj-july >>> _______________________________________________ >>> Jikesrvm-researchers mailing list >>> Jikesrvm-researchers@... >>> https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers >>> >> >> ------------------------------------------------------------------------------ >> Let Crystal Reports handle the reporting - Free Crystal Reports 2008 >> 30-Day >> trial. Simplify your report design, integration and deployment - and >> focus on >> what you do best, core application coding. Discover what's new with >> Crystal Reports now. http://p.sf.net/sfu/bobj-july >> _______________________________________________ >> Jikesrvm-researchers mailing list >> Jikesrvm-researchers@... >> https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Jikesrvm-researchers mailing list > Jikesrvm-researchers@... > https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Jikesrvm-researchers mailing list Jikesrvm-researchers@... https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers |
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Re: [rvm-research] Debugging Jikes
by Laurence Hellyer
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On 21 Aug 2009, at 23:49, Michael Bond wrote: > > (3) Finally, Jikes has an interactive debugger that you can invoke by > sending SIQUIT to Jikes while it's running: > > pkill -SIGQUIT JikesRVM > > In previous versions of Jikes, that stopped all threads and provided > an > interactive prompt, but currently it just dumps the state of the VM > and > continues immediately (that's a known issue: > http://jira.codehaus.org/browse/RVM-570). > > Also, it appears that a baseline-only version of Jikes, i.e., > prototype, > doesn't currently support the debugger. It looks like that's > because the > TimerThread, which launches the debugger (among other things), > doesn't run > if the adaptive system isn't enabled. I'll open a JIRA on that. In > the > meantime I'd suggest using a configuration that includes the adaptive > system (AOS), e.g., prototype-opt or development or production. Hi, Mike wrote the above in response to a question about debugging and I found it interesting because I never knew about this feature - it doesn't seem to be documented in the User guide. Unfortunately I don't have suitable permissions to add something to the wiki so perhaps someone who can would be kind enough to add this? Thanks to Mike for pointing this out. Kind regards Laurence Laurence Hellyer Research Student Computing Laboratory University of Kent More info: http://www.cs.kent.ac.uk/people/rpg/lh243/ ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Jikesrvm-researchers mailing list Jikesrvm-researchers@... https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers |
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Re: [rvm-research] Debugging Jikes
by Michael Bond
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Hi Laurence,
Thanks for the suggestion. I added some text about the debugger thread to the user guide: http://docs.codehaus.org/display/RVM/Debugging+the+RVM In general, everyone's encouraged to contribute to the user guide (http://docs.codehaus.org/display/RVM/How+to+Help). I'm not exactly sure who has permissions to give you permissions, but you can just e-mail the core list :) Cheers, Mike On Thu, 27 Aug 2009, Laurence Hellyer wrote: > > On 21 Aug 2009, at 23:49, Michael Bond wrote: >> >> (3) Finally, Jikes has an interactive debugger that you can invoke by >> sending SIQUIT to Jikes while it's running: >> >> pkill -SIGQUIT JikesRVM >> >> In previous versions of Jikes, that stopped all threads and provided >> an >> interactive prompt, but currently it just dumps the state of the VM >> and >> continues immediately (that's a known issue: >> http://jira.codehaus.org/browse/RVM-570). >> >> Also, it appears that a baseline-only version of Jikes, i.e., >> prototype, >> doesn't currently support the debugger. It looks like that's >> because the >> TimerThread, which launches the debugger (among other things), >> doesn't run >> if the adaptive system isn't enabled. I'll open a JIRA on that. In >> the >> meantime I'd suggest using a configuration that includes the adaptive >> system (AOS), e.g., prototype-opt or development or production. > > Hi, > > Mike wrote the above in response to a question about debugging and I > found it interesting because I never knew about this feature - it > doesn't seem to be documented in the User guide. > > Unfortunately I don't have suitable permissions to add something to > the wiki so perhaps someone who can would be kind enough to add this? > > Thanks to Mike for pointing this out. > > Kind regards > Laurence > > Laurence Hellyer > Research Student > Computing Laboratory > University of Kent > > More info: http://www.cs.kent.ac.uk/people/rpg/lh243/ > > > ------------------------------------------------------------------------------ > Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day > trial. Simplify your report design, integration and deployment - and focus on > what you do best, core application coding. Discover what's new with > Crystal Reports now. http://p.sf.net/sfu/bobj-july > _______________________________________________ > Jikesrvm-researchers mailing list > Jikesrvm-researchers@... > https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers > ------------------------------------------------------------------------------ Let Crystal Reports handle the reporting - Free Crystal Reports 2008 30-Day trial. Simplify your report design, integration and deployment - and focus on what you do best, core application coding. Discover what's new with Crystal Reports now. http://p.sf.net/sfu/bobj-july _______________________________________________ Jikesrvm-researchers mailing list Jikesrvm-researchers@... https://lists.sourceforge.net/lists/listinfo/jikesrvm-researchers |
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