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* Re: java/6823: "internal error: Segmentation fault" on -O2 compilation to machine code
@ 2003-05-13 6:26 steven
0 siblings, 0 replies; 2+ messages in thread
From: steven @ 2003-05-13 6:26 UTC (permalink / raw)
To: gcc-bugs, gcc-prs, java-prs, nobody, oskar
Synopsis: "internal error: Segmentation fault" on -O2 compilation to machine code
State-Changed-From-To: open->closed
State-Changed-By: steven
State-Changed-When: Tue May 13 06:26:18 2003
State-Changed-Why:
Reported fixed
http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view%20audit-trail&database=gcc&pr=6823
^ permalink raw reply [flat|nested] 2+ messages in thread
* java/6823: "internal error: Segmentation fault" on -O2 compilation to machine code
@ 2002-05-26 12:26 Oskar Liljeblad
0 siblings, 0 replies; 2+ messages in thread
From: Oskar Liljeblad @ 2002-05-26 12:26 UTC (permalink / raw)
To: gcc-gnats
>Number: 6823
>Category: java
>Synopsis: "internal error: Segmentation fault" on -O2 compilation to machine code
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: unassigned
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Sun May 26 12:26:00 PDT 2002
>Closed-Date:
>Last-Modified:
>Originator: Oskar Liljeblad <oskar@osk.mine.nu>
>Release: 3.1
>Organization:
>Environment:
Linux/x86
>Description:
Compile this with "gcj -c -O2 Demo.java":
class Demo
{
final synchronized void foo() { return; }
void bar()
{
foo();
synchronized (this) { return; }
}
}
The result is:
Demo.java: In class `Demo':
Demo.java: In method `Demo.bar()':
Demo.java:9: internal error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://www.gnu.org/software/gcc/bugs.html> for
instructions.
It will work fine if you do one of:
* Remove the "return;" in foo()
* Remove "syncronized" in foo's prototype.
* Remove "final" in foo's prototype.
* Remove the call "foo()" in bar.
* Remove the "return;" in the synchronized block in bar.
* Remove the synchronized block in bar
(keeping the "return" statement).
* Put the "foo" method after "bar" instead of before.
* Compile into java bytecode instead of machine code.
* Don't compile the program with -O2.
I'm sorry - it is easy to find bugs but harder to fix them :( Unfortunately I know too little about GCC to help out.
Oskar Liljeblad (oskar@osk.mine.nu)
>How-To-Repeat:
>Fix:
>Release-Note:
>Audit-Trail:
>Unformatted:
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2003-05-13 6:26 java/6823: "internal error: Segmentation fault" on -O2 compilation to machine code steven
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