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* [Bug libgcj/28352] New: Interpreter: Stack trace line numbers sometimes missing or incorrect
@ 2006-07-11 21:30 mckinlay at redhat dot com
2006-07-11 21:32 ` [Bug libgcj/28352] " mckinlay at redhat dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: mckinlay at redhat dot com @ 2006-07-11 21:30 UTC (permalink / raw)
To: java-prs
When the following test case is built with gcj -C, the innermost frame is
missing from the stack trace:
public class Ex {
void snafu( ) throws Exception {
throw new Exception();
}
void bar( ) throws Exception {
snafu( );
}
void foo( ) throws Exception {
bar( );
}
public static void main( String[] args) throws Exception {
new Ex( ).foo( );
}
}
$ gij Ex
Exception in thread "main" java.lang.Exception
at Ex.snafu(Ex.java)
at Ex.bar(Ex.java:6)
at Ex.foo(Ex.java:9)
at Ex.main(Ex.java:12)
In addition, when built with a different bytecode compiler (ecj), the stack
trace is complete, but has off-by-one line number errors:
$ gij Ex
Exception in thread "main" java.lang.Exception
at Ex.snafu(Ex.java:3)
at Ex.bar(Ex.java:7)
at Ex.foo(Ex.java:10)
at Ex.main(Ex.java:13)
--
Summary: Interpreter: Stack trace line numbers sometimes missing
or incorrect
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libgcj
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: mckinlay at redhat dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28352
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug libgcj/28352] Interpreter: Stack trace line numbers sometimes missing or incorrect 2006-07-11 21:30 [Bug libgcj/28352] New: Interpreter: Stack trace line numbers sometimes missing or incorrect mckinlay at redhat dot com @ 2006-07-11 21:32 ` mckinlay at redhat dot com 2006-07-12 1:46 ` rmathew at gcc dot gnu dot org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: mckinlay at redhat dot com @ 2006-07-11 21:32 UTC (permalink / raw) To: java-prs ------- Comment #1 from mckinlay at redhat dot com 2006-07-11 21:32 ------- Correction: the description should read "the line number for the inner-most frame is missing from the stack trace". -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28352 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libgcj/28352] Interpreter: Stack trace line numbers sometimes missing or incorrect 2006-07-11 21:30 [Bug libgcj/28352] New: Interpreter: Stack trace line numbers sometimes missing or incorrect mckinlay at redhat dot com 2006-07-11 21:32 ` [Bug libgcj/28352] " mckinlay at redhat dot com @ 2006-07-12 1:46 ` rmathew at gcc dot gnu dot org 2006-07-12 13:56 ` bryce at gcc dot gnu dot org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: rmathew at gcc dot gnu dot org @ 2006-07-12 1:46 UTC (permalink / raw) To: java-prs ------- Comment #2 from rmathew at gcc dot gnu dot org 2006-07-12 01:46 ------- Confirmed. -- rmathew at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 Last reconfirmed|0000-00-00 00:00:00 |2006-07-12 01:46:30 date| | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28352 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libgcj/28352] Interpreter: Stack trace line numbers sometimes missing or incorrect 2006-07-11 21:30 [Bug libgcj/28352] New: Interpreter: Stack trace line numbers sometimes missing or incorrect mckinlay at redhat dot com 2006-07-11 21:32 ` [Bug libgcj/28352] " mckinlay at redhat dot com 2006-07-12 1:46 ` rmathew at gcc dot gnu dot org @ 2006-07-12 13:56 ` bryce at gcc dot gnu dot org 2006-07-12 13:59 ` [Bug java/28352] gcj -C fails to generate line number info for method mckinlay at redhat dot com 2007-01-09 20:54 ` tromey at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: bryce at gcc dot gnu dot org @ 2006-07-12 13:56 UTC (permalink / raw) To: java-prs ------- Comment #3 from bryce at gcc dot gnu dot org 2006-07-12 13:56 ------- Subject: Bug 28352 Author: bryce Date: Wed Jul 12 13:56:25 2006 New Revision: 115370 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=115370 Log: 2006-07-12 Bryce McKinlay <mckinlay@redhat.com> PR libgcj/28352 * stacktrace.cc (getLineNumberForFrame): Roll back PC by 1 when looking up line number for interpreted frame. Modified: trunk/libjava/ChangeLog trunk/libjava/stacktrace.cc -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28352 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug java/28352] gcj -C fails to generate line number info for method 2006-07-11 21:30 [Bug libgcj/28352] New: Interpreter: Stack trace line numbers sometimes missing or incorrect mckinlay at redhat dot com ` (2 preceding siblings ...) 2006-07-12 13:56 ` bryce at gcc dot gnu dot org @ 2006-07-12 13:59 ` mckinlay at redhat dot com 2007-01-09 20:54 ` tromey at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: mckinlay at redhat dot com @ 2006-07-12 13:59 UTC (permalink / raw) To: java-prs ------- Comment #4 from mckinlay at redhat dot com 2006-07-12 13:59 ------- I've committed a patch which fixes the "off by one" error seen with ecj-produced bytecode. The missing line number issue is a different bug. It seems that "gcj -C" simply does not generate any debug info for the "snafu" method in the example below. I'm reassigning this as a front-end bug. -- mckinlay at redhat dot com changed: What |Removed |Added ---------------------------------------------------------------------------- Component|libgcj |java Summary|Interpreter: Stack trace |gcj -C fails to generate |line numbers sometimes |line number info for method |missing or incorrect | http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28352 ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug java/28352] gcj -C fails to generate line number info for method 2006-07-11 21:30 [Bug libgcj/28352] New: Interpreter: Stack trace line numbers sometimes missing or incorrect mckinlay at redhat dot com ` (3 preceding siblings ...) 2006-07-12 13:59 ` [Bug java/28352] gcj -C fails to generate line number info for method mckinlay at redhat dot com @ 2007-01-09 20:54 ` tromey at gcc dot gnu dot org 4 siblings, 0 replies; 6+ messages in thread From: tromey at gcc dot gnu dot org @ 2007-01-09 20:54 UTC (permalink / raw) To: java-prs ------- Comment #5 from tromey at gcc dot gnu dot org 2007-01-09 20:48 ------- All gcj front end bugs have been fixed by the gcj-eclipse branch merge. I'm mass-closing the affected PRs. If you believe one of these was closed in error, please reopen it with a note explaining why. Thanks. -- tromey at gcc dot gnu dot org changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution| |FIXED Target Milestone|--- |4.3.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=28352 ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2007-01-09 20:54 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2006-07-11 21:30 [Bug libgcj/28352] New: Interpreter: Stack trace line numbers sometimes missing or incorrect mckinlay at redhat dot com 2006-07-11 21:32 ` [Bug libgcj/28352] " mckinlay at redhat dot com 2006-07-12 1:46 ` rmathew at gcc dot gnu dot org 2006-07-12 13:56 ` bryce at gcc dot gnu dot org 2006-07-12 13:59 ` [Bug java/28352] gcj -C fails to generate line number info for method mckinlay at redhat dot com 2007-01-09 20:54 ` tromey at gcc dot gnu dot org
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