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#49990
[core-updates-frozen] Ant-bootstrap broken by classpath-bootstrap
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Your message dated Fri, 03 Sep 2021 12:11:42 +0200
with message-id <87fsum2ckh.fsf <at> gnu.org>
and subject line Re: bug#49990: [core-updates-frozen] Ant-bootstrap broken by classpath-bootstrap
has caused the debbugs.gnu.org bug report #49990,
regarding [core-updates-frozen] Ant-bootstrap broken by classpath-bootstrap
to be marked as done.
(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)
--
49990: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=49990
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
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Hi Guix!
I've finally taken the time to investigate the build failure of
ant-bootstrap. It is failing after reporting a file exists:
```
/tmp/guix-build-ant-bootstrap-1.8.4.drv-0/apache-ant-1.8.4/build.xml:558:
Unable to create directory as a file already exists with that name:
/tmp/guix-build-ant-bootstrap-1.8.4.drv-0/apache-ant-1.8.4/build
```
So, I set an environment variable to pass a different build directory
to ant (-Dbuild.dir=bootstrapped-build), but it fails in the same way:
```
/tmp/guix-build-ant-bootstrap-1.8.4.drv-0/apache-ant-1.8.4/build.xml:558:
Unable to create directory as a file already exists with that name:
/tmp/guix-build-ant-bootstrap-1.8.4.drv-0/apache-ant-1.8.4/bootstrapped-build
```
However, using -K, I could check the directory does not exist. After
investigating a bit, I found that File.isFile() is not working as
expected. With the following file (Test.java):
```
import java.io.File;
public class Test {
public static void main(String[] args) {
File f = new File("non-existent");
if(f.isFile())
System.out.println("yes");
else
System.out.println("no");
}
}
```
compiled in a guix environment for ant-bootstrap (I had to temporarily
export it):
```
$ ./pre-inst-env guix environment ant-bootstrap
[env]$ CLASSPATH=$GUIX_ENVIRONMENT/lib/rt.jar jikes Test.java
[env]$ java Test
no
[env]$ jamvm Test
yes
```
(java comes from outside the environment). jamvm from master is
working, and I don't see any difference in it, classpath or jikes
recipes.
After investigation, it turns out that java.io.File is actually
implemented in classpath, not jamvm, and there is a comment that refers
to another similar issue:
https://issues.guix.gnu.org/issue/36685
I tried the obvious, that is to introduce a new memory leak, but that
did not work. So, to better understand what was going on, I instead
added some printing:
```
@@ -256,7 +256,9 @@ only faster.")
(lambda _
(substitute* "native/jni/java-io/java_io_VMFile.c"
(("result = cpio_isFileExists.*" m)
- (string-append m "\n//")))
+ (string-append m "\n//"))
+ (("result = cpio_checkType.*" m)
+ (string-append m "\nfprintf(stderr, \"type? %s : %d --
%d -- %d;\\n\", filename, result, entryType, ((result == CPNATIVE_OK &&
entryType == CPFILE_FILE) ? 1 : 0));\n"))) #t)) (add-after 'install
'install-data (lambda _ (invoke "make" "install-data"))))))
```
and surprisingly, this prints the expected values, and it is enough to
get the correct answer from the java side too. With the above diff, I'm
able to build ant-bootstrap and all the dependencies of icedtea <at> 1, with
a lot of useless debug lines... Unfortunately icedtea itself ends in a
failure after building quite a lot.
[Message part 3 (message/rfc822, inline)]
Hi there!
I pushed a variant of the patch proposed earlier, adding a similar
workaround to ‘Java_java_io_VMFile_exists’ and
‘Java_java_io_VMFile_isDirectory’:
https://git.savannah.gnu.org/cgit/guix.git/commit/?h=core-updates-frozen&id=7f50543d55b20cd528b28d7e15f1bb81001a8da9
With this, I can build ‘ant-bootstrap’ just fine. \o/
Next up: icedtea 1.13.13 chokes on obscure C++ issues:
--8<---------------cut here---------------start------------->8---
In file included from /tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/asm/assembler.hpp:29,
from /tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/precompiled/precompiled.hpp:29:
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/code/relocInfo.hpp:374:27: error: friend declaration of ‘relocInfo prefix_relocInfo(int)’ specifies default arguments and isn’t a definition [-fpermissive]
374 | inline friend relocInfo prefix_relocInfo(int datalen = 0);
| ^~~~~~~~~~~~~~~~
In file included from /tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/asm/assembler.hpp:29,
from /tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/precompiled/precompiled.hpp:29:
/tmp/guix-build-icedtea-1.13.13.drv-0/icedtea6-1.13.13/openjdk-ecj/hotspot/src/share/vm/code/relocInfo.hpp:472:18: error: friend declaration of ‘relocInfo prefix_relocInfo(int)’ specifies default arguments and isn’t the only declaration [-fpermissive]
472 | inline relocInfo prefix_relocInfo(int datalen) {
| ^~~~~~~~~~~~~~~~
--8<---------------cut here---------------end--------------->8---
Anyway, we’re making progress!
Ludo’.
This bug report was last modified 3 years and 262 days ago.
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