* Also I’m making progress on compiling jdk, but there are some very interesting
solutions on windows linking which makes a bit more difficult to compile with gcc:
LIBS_windows contains sometimes simple library names (which I believe is correct) and other
times library names with full path (which I believe is not the best solution). I’m trying
to rework those places and use simple library names and passing search path for libraries
-L<path> (for gcc toolchain) and /LIBPATH:<path> (for Microsoft toolchain).
Also I was surprised by a few manual function name exports…
* jdk code base contains apparently more MSVC specific part, many places
casts/lack of casts are generating errors, static attributes were missing etc.
a bit tedious work.
P.
From: Erik Joelsson<mailto:erik.joels...@oracle.com>
Sent: Wednesday, October 11, 2017 4:16 PM
To: Magnus Ihse Bursie<mailto:magnus.ihse.bur...@oracle.com>; Peter
Budai<mailto:peterbu...@hotmail.com>
Cc:
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: Re: Building OpenJDK9 on MSYS2
Hello,
On 2017-10-11 15:48, Magnus Ihse Bursie wrote:
For gcc, we let the compiler generate the .d file. For the Microsoft tool
chain, we use a clever sed script to extract and create it ourself.
I think that logic is checking for "Windows", not "Microsoft". That might be
your cause of trouble.
Look in NativeCompilation.gmk.
That was my initial thought as well, but we do correctly check for microsoft.
Also it's not the .d files that are the problem. As Peter just wrote, they look
fine. It's the .d.target files which we create using the same technique on all
platforms. What we don't account for is the compiler putting Windows mixed
paths in the .d files.
/Magnus
11 okt. 2017 kl. 14:43 skrev Peter Budai
<peterbu...@hotmail.com<mailto:peterbu...@hotmail.com><mailto:peterbu...@hotmail.com>>:
Hi Erik,
The .d file looks like this:
C:/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/hotspot/variant-server/tools/adlc/objs/adlparse.obj:
\
C:/msys64/home/peterbud/jdk9/hotspot/src/share/vm/adlc/adlparse.cpp \
I have checked .d.targets file, and looks like it has the first line has not
been deleted, and the file names below are also wrong:
/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/hotspot/variant-server/tools/adlc/objs/adlparse.obj
: :
/msys64/home/peterbud/jdk9/hotspot/src/share/vm/adlc/adlparse.cpp :
/msys64/home/peterbud/jdk9/hotspot/src/share/vm/adlc/adlc.hpp :
I guess this part in the DEPENDENCY_TARGET_SED_PATTERN is fooled by the “C:/”
-e 's/^[^:]*: *//'
Yes, that does indeed look like the problem. I suppose the regexp is
unnecessarily strict. It should be ok to rewrite it as something like this:
-e 's/^.*: *//'
Basically just make sure it ends with : and any number of spaces.
/Erik
Peter
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Erik Joelsson<mailto:erik.joels...@oracle.com>
Sent: Wednesday, October 11, 2017 12:16 PM
To: Peter Budai<mailto:peterbu...@hotmail.com>; Magnus Ihse
Bursie<mailto:magnus.ihse.bur...@oracle.com>;
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: Re: Building OpenJDK9 on MSYS2
Hello Peter,
On 2017-10-11 00:18, Peter Budai wrote:
Thanks Magnus & Erik
First thanks for your support and kind words!
Magnus, I have checked .bash_profile, .bashrc but they seem to be empty
(everything is commented out). You can check with a default MSYS2 install, I
have not changed these files at all. If you find thee something specific I can
give a try here as well.
Let me give also a quick status update, where am I with building hotspot:
· I guess its still the beginning, but I have managed to compile jvm.dll
with almost 700 object file: with debug info the dll is around 700 MB 😊
· I made only surgical, minimal changes to the source, and so far it
looks reasonable. I have encountered 3 scenarios where changes were necessary:
o When in makefiles conditionals were using assuming that if target_os is
windows then it is visual studio compiler/linker. Obviously these conditionals
had to be reviewed in a few places and if necessary were changes to check the
toolchain=Microsoft
These are not surprising and should be pretty straight forward to fix and it
seems you know what to do.
·
o I got a few warnings as gcc 7.2 uncovered some code problems in windows
specific codes, where before that MSVC I guess did not say a word…
To get around this you can configure with --disable-warnings-as-errors until
you get things working properly. This is commonly needed when using compiler
versions that we normally don't use.
·
o And I had like 6-7 places where the code was using MSVC specific __try …
__except structures which gcc does not know. Do you have a suggestion how to
approach them? I can do ugly #ifdefs (I would avoid that) but I have also seen
some solutions to replace them with a code which gcc can compile
(http://www.programmingunlimited.net/siteexec/content.cgi?page=mingw-seh ) –
but before doing that though I would ask first you on the purpose of those
This kind of question is probably best to bring to the hotspot mailing list.
· What bothers me is that I was not able to do incremental builds: when
an error occurs, and build stops, then after making change in the CPP source
the build cannot continue, I always got an error message:
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/hotspot/variant-server/tools/adlc/objs/adlparse.d.targets:1:
*** missing target pattern. Stop.
make[2]: *** [make/Main.gmk:256: hotspot-server-gensrc] Error 2
If I do a ‘make clean’ and restart the build then it nicely compiles.
Question 1: Is there a way to resume such builds without ‘make clean’?
Well, incremental builds is supposed to work well. We have several extra tricks
in there to handle cases where normal make builds would fail. The *.d.targets
files is one such trick and it seems to backfire for you. The contents of that
file should be something like:
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/adlparse.cpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/adlc.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/opto/opcodes.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/opto/classes.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/arena.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/opto/adlcVMDeps.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/filebuff.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/dict2.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/forms.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/formsopt.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/formssel.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/archDesc.hpp :
/localhome/hg/jdk9-dev/hotspot/src/share/vm/adlc/adlparse.hpp :
Basically an empty rule for each dependency for the corresponding object file.
Declaring these rules makes it possible to delete source files without having
to build clean. It seems your file is not generated correctly so please have a
look inside it. The file is in make/common/NativeCompilation.gmk, look for
DEPENDENCY_TARGET_SED_PATTERN.
Question 2: What would be the best way to submit/share the patches for your
thorough review?
Well, first of all, have you signed the OCA?
As for publishing patches and reviews, there is a bit of chicken and egg problem. Once you become an
"author" in any of the OpenJDK projects, you get a user name and should be able to publish reviews on
cr.openjdk.java.net<http://cr.openjdk.java.net/><http://cr.openjdk.java.net<http://cr.openjdk.java.net/<http://cr.openjdk.java.net/%3e%3chttp:/cr.openjdk.java.net%3chttp:/cr.openjdk.java.net/>>>.
Before that, if the patch is small, it can be posted inline in an email to the list. If it's large, you will
need a current OpenJDK user to host it for you. At least that's how I understand it. Hopefully someone who knows
the process better can chime in here.
I should also let you know that getting this into JDK 9 is most likely not
going to happen. AFAIK we are only doing security updates for 9. It would have
to go into the currently active release. I should also warn you that new ports
generally need a certain amount of backing to be accepted. It may be that this
would have to live in a porting side project. Hopefully someone who knows this
better can chime in here as well.
/Erik
P.
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Magnus Ihse Bursie<mailto:magnus.ihse.bur...@oracle.com>
Sent: Tuesday, October 10, 2017 10:04 AM
To: Peter Budai<mailto:peterbu...@hotmail.com>; Erik
Joelsson<mailto:erik.joels...@oracle.com>;
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: Re: Building OpenJDK9 on MSYS2
On 2017-10-07 10:14, Peter Budai wrote:
The configure of OpenJDK overwrites the SHELL. Actually it is using bash, but
for the arguments it was using “-e -o pipefail”. I have figured that for MSYS2
bash what is needed as bash arguments is “-e -l -c -o pipefail”
That looks like solving this problem, and now the real issues are surfacing.
FWIW, "-l" makes bash behave like a login shell. Most likely you are changing
bash's behavior in one of your login scripts, and that change is what's really needed.
/Magnus
Peter
From: Peter Budai<mailto:peterbu...@hotmail.com>
Sent: Friday, October 6, 2017 6:43 PM
To: Magnus Ihse Bursie<mailto:magnus.ihse.bur...@oracle.com>; Erik
Joelsson<mailto:erik.joels...@oracle.com>;
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: RE: Building OpenJDK9 on MSYS2
Magnus,
I have followed your suggestion and removed the fixpath prefixes from gcc
related compile tools, and left only the fixpath prefix _only_ for the Boot JDK
related tools in place.
1) As I follow the process, all java and javac related compile steps are
running properly
2) When the process reaches gcc related steps I got the error message at
the same place as before (no fixpath). If I execute that command from the bash
prompt, it creates the output:
$ ( /usr/bin/gawk '/@@END_COPYRIGHT@@/{exit}1'
/C/msys64/home/peterbud/jdk9/jdk/src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template
&& /C/msys64/mingw64/bin/gcc -E -x c
/C/msys64/home/peterbud/jdk9/jdk/src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template
2> >(/usr/bin/grep -v '^SocketOptionRegistry.java.template$' >&2) | /usr/bin/gawk
'/@@START_HERE@@/,0' | /usr/bin/sed -e 's/@@START_HERE@@/\/\/ AUTOMATICALLY GENERATED FILE - DO NOT
EDIT/' -e 's/PREFIX_//' -e 's/^#.*//' ) >
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/support/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java
As I have mentioned the parameters are replaced by the bash automatically
3) Then build continues, then little later stops at a super simple command:
mv
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/support/gensrc/java.base/java/nio/ByteBuffer.java.tmp
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/support/gensrc/java.base/java/nio/ByteBuffer.java
Needless to say, the ByteBuffer.java.tmp file DOES exist. And
running the above command from the bash works, and build continues.
4) A few similar cases (stops) with DirectByteBuffer and DirectByteBufferR
Currently I try to explore how that might relate to the MSYS2 bash and make,
somehow it behaves differently
If you have any other suggestion, let me know.
Best regards,
Peter
From: Peter Budai<mailto:peterbu...@hotmail.com>
Sent: Thursday, October 5, 2017 3:52 PM
To: Magnus Ihse Bursie<mailto:magnus.ihse.bur...@oracle.com>; Erik
Joelsson<mailto:erik.joels...@oracle.com>;
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: RE: Building OpenJDK9 on MSYS2
Hi Magnus,
So first of all, here is the current patch, which I was not able to attach:
https://pastebin.com/pwT4Ynxc
That's surprising, since gcc is prefixed with fixpath, which it should not.
Actually you DO need fixpath IMHO.
This is a mingw64 version of the gcc (/C/msys64/mingw64/bin/gcc), which is a
fully functional Windows executable, which expects Windows formatted path
arguments.
As the updated build process uses EXPORT MSYS2_ARG_CONV_EXCL=* (see that
patch), none of the command line arguments are converted from the unix path to
Windows, but fixpath does that conversion. There is a wiki describing more
details on this:
https://github.com/msys2/msys2/wiki/Porting#user-content-filesystem-namespaces
I have a hard time believing this is a race condition. On the other hand, this
stuff is weird, we're misusing the C preprocessor to process defines in java
code, so I'm not surprised it breaks down.
I don't know why it succeeded when run on the command line, though.
When I execute that command from the bash command line there is no EXPORT
MSYS2_ARG_CONV_EXCL, but the bash itself does the automatic conversion of the
arguments. Maybe it has something to do how fixpath does CreateProcess?
Does that help?
Best regards,
Peter
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Magnus Ihse Bursie<mailto:magnus.ihse.bur...@oracle.com>
Sent: Thursday, October 5, 2017 12:13 PM
To: Peter Budai<mailto:peterbu...@hotmail.com>; Erik
Joelsson<mailto:erik.joels...@oracle.com>;
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: Re: Building OpenJDK9 on MSYS2
On 2017-10-05 11:59, Peter Budai wrote:
Hi Magnus and Erik,
I really appreciate your quick feedback. I assumed that it won’t be easy, but I
just don’t feel I should give up now - maybe later when I see the real scale
of work. So bear with me for a time being.
Attached is a patch which already includes Magnus’ changes, plus a few which I
have added:
· basically enabling gcc for windows,
· and modifying a logic for compiling fixpath (before that it was using
hard-coded MS VSC compile flags)
Actually, you must make sure fixpath is *not* used for the toolchain, since gcc
uses unix style paths.
(However, other tools such as java will still need it.)
So here is what I have as the result of configure:
====================================================
The existing configuration has been successfully updated in
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release
using configure arguments '--disable-freetype-bundling --disable-javac-server'.
Configuration summary:
* Debug level: release
* HS debug level: product
* JDK variant: normal
* JVM variants: server
* OpenJDK target: OS: windows, CPU architecture: x86, address length: 64
* Version string: 9-internal+0-adhoc.peterbud.jdk9 (9-internal)
Tools summary:
* Environment: msys version 2.9.0(0.318/5/3) (root at /C/msys64)
* Boot JDK: java version "1.8.0_144" Java(TM) SE Runtime Environment
(build 1.8.0_144-b01) Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)
(at /c/progra~1/java/jdk18~1.0_1)
* Toolchain: gcc (GNU Compiler Collection)
* C Compiler: Version 7.2.0 (at /C/msys64/mingw64/bin/gcc)
* C++ Compiler: Version 7.2.0 (at /c/msys64/mingw64/bin/g++)
Build performance summary:
* Cores to use: 4
* Memory limit: 16216 MB
Its clear says that the toolchain is gcc 7.2 (BTW there is no Visual Studio on
this machine)
Now for the details of the config log, you can see here:
https://pastebin.com/MN2ZYcHH
And about the build process and the error I get:
$ make JOBS=1
Building target 'default (exploded-image)' in configuration
'windows-x86_64-normal-server-release'
Compiling 8 files for BUILD_TOOLS_LANGTOOLS
Compiling 17 properties into resource bundles for jdk.compiler
Parsing 1 properties into enum-like class for jdk.compiler
Compiling 19 properties into resource bundles for jdk.javadoc
Compiling 12 properties into resource bundles for jdk.jdeps
Compiling 7 properties into resource bundles for jdk.jshell
Compiling 117 files for BUILD_INTERIM_java.compiler
Compiling 396 files for BUILD_INTERIM_jdk.compiler
Compiling 61 files for BUILD_INTERIM_jdk.jdeps
Compiling 457 files for BUILD_INTERIM_jdk.javadoc
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
Compiling 159 files for BUILD_TOOLS_JDK
Note: Some input files use unchecked or unsafe operations.
Note: Recompile with -Xlint:unchecked for details.
make[3]: *** [GensrcMisc.gmk:78:
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/support/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java]
Error 1
make[3]: *** Deleting file
'/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/support/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java'
make[2]: *** [make/Main.gmk:115: java.base-gensrc-jdk] Error 2
ERROR: Build failed for target 'default (exploded-image)' in configuration
'windows-x86_64-normal-server-release' (exit code 2)
No indication of failed target found.
Hint: Try searching the build log for '] Error'.
Hint: See common/doc/building.html#troubleshooting for assistance.
make[1]: *** [/home/peterbud/jdk9/make/Init.gmk:296: main] Error 2
make: *** [/home/peterbud/jdk9/make/Init.gmk:185: default] Error 2
If I run here
make JOBS=1 LOG=debug
The failing line seems to be this:
( /usr/bin/gawk '/@@END_COPYRIGHT@@/{exit}1'
/C/msys64/home/peterbud/jdk9/jdk/src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template
&&
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/configure-support/bin/fixpath.exe
-m/C/msys64/@/c/msys64/@/c/progra~ /C/msys64/mingw64/bin/gcc -E -x c
/C/msys64/home/peterbud/jdk9/jdk/src/java.base/share/classes/sun/nio/ch/SocketOptionRegistry.java.template
2> >(/usr/bin/grep -v '^SocketOptionRegistry.java.template$' >&2) | /usr/bin/gawk
'/@@START_HERE@@/,0' | /usr/bin/sed -e 's/@@START_HERE@@/\/\/ AUTOMATICALLY GENERATED FILE - DO NOT
EDIT/' -e 's/PREFIX_//' -e 's/^#.*//' ) >
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/support/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java
make[3]: *** [GensrcMisc.gmk:78:
/C/msys64/home/peterbud/jdk9/build/windows-x86_64-normal-server-release/support/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java]
Error 1
Now the interesting is: if I copy this line above to the bash prompt, it runs
without problem, and the file
support/gensrc/java.base/sun/nio/ch/SocketOptionRegistry.java
That's surprising, since gcc is prefixed with fixpath, which it should not.
I have a hard time believing this is a race condition. On the other hand, this
stuff is weird, we're misusing the C preprocessor to process defines in java
code, so I'm not suprised it breaks down. I don't know why it succeeded when
run on the command line, though. My suggestion is to just do some quick and
dirty hack around this: take the file you manage to generate and just copy it
in during the build instead. If you can get round this, you might start seeing
some *real* problems. :-)
Also, my suggestion is that you try running "make hotspot" to cut to the chase. Compiling
hotspot will likely be the hardest thing. Or even "make -k hotspot" to get an assessment
of the amount of work ahead of you.
/Magnus
Is produced.
Then I can again issue
make JOBS=1 LOG=debug
And the compile process is being continued, until a similar error pops up with
a different generated file. I have an assumption that this happens because make
is still running parallel jobs, despite JOBS=1 but I’m not sure.
How could I best tackle this?
Thank you and best regards,
Peter
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Windows 10
From: Magnus Ihse Bursie<mailto:magnus.ihse.bur...@oracle.com>
Sent: Thursday, October 5, 2017 11:33 AM
To: Erik Joelsson<mailto:erik.joels...@oracle.com>; Peter
Budai<mailto:peterbu...@hotmail.com>;
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: Re: Building OpenJDK9 on MSYS2
On 2017-10-05 10:10, Erik Joelsson wrote:
Hello Peter,
On 2017-10-04 21:15, Peter Budai wrote:
Hi Magnus,
Thanks for the quick reply I’ll check these patches with msys2.
Let me specify with more details what I’d like to achieve: I’d like
to build OpenJDK9 with MSYS2 MINGW64 environment using gcc toolchain.
(I’m not sure how familiar are you with MSYS2, but there are 3
different environments: MSYS2, MINGW32 and MINGW64). In theory
MINGW64 with gcc is the closes you can get on Windows platform as a
gcc unix like build environment, which produces still a native 64-bit
executable on Windows.
I’m not very familiar with OpenJDK yet, so therefore I’d like to hear
your opinion: how realistic is that?
Sorry to disappoint, but I would say that requires major work. There
is a strong historic assumption that windows builds are done using
Visual Studio. We have abstracted away some of it in configure (see
TOOLCHAIN_TYPE), but it's very far from enough to change compiler
environment for a Windows build. The native sources are also bound to
make a lot of such assumptions. I would expect the changes needed to
be in the thousands of lines of code.
I agree that it requires hard work (even if "thousands" might be an
overestimation I think, but "hundreds" is not enough, so it's the right
magnitude). On the other hand, it would be really good if we did sort
things out, so that we had proper conditions based on OS vs
compiler/toolchain.
If you really want to start, the first thing is to patch toolchain.m4 to
VALID_TOOLCHAINS_windows="microsoft gcc"
and then call configure using "bash configure --with-toolchain-type=gcc".
As Erik, I doubt you will come very far before things starts tumbling down.
When we say supporting the build in msys2 instead of cygwin, we just
mean using msys2 as the unix emulating layer for our tools like
make/bash/grep/sed etc.
One think I have done successfully is running the build in WSL
(Windows Subsystem for Linux), but that isn't all that helpful as WSL
for practical purposes is more or less like running Linux in a VM, so
the build sees a Linux system and builds a Linux binary.
As a side note: with MINGW64 I have managed to run configure phase
successfully for OpenJDK. The compile process has also started and
went for a while, but interestingly I run into some kind of race
conditions as make stopped with an error. Using LOG=debug I have fond
the failing line and then copying the failed command and pasting it
to the bash prompt it successfully generated the output target, and
then the build process run further when a similar situation happened.
Also pasting the failed command run in the bash without any problem,
and build continued… until the next.
Without seeing the errors I can't say much. I very much doubt that you
are running with gcc as the compiler though. Configure isn't easily
fooled into using a different compiler to what it prefers, and I would
expect things to crash and burn pretty early if you actually did.
/Erik
I have tried to run make JOBS=1, but did not help, strangely I have
still seen in the log make[3] and make[4] logs which suggested that
there are more than one make jobs were running. Also tried .configure
--with-output-sync=recurse without success (same symptoms)
Let me know your thoughts.
Best regards,
Peter
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for
Windows 10
From: Magnus Ihse Bursie<mailto:magnus.ihse.bur...@oracle.com>
Sent: Wednesday, October 4, 2017 1:04 AM
To: Peter Budai<mailto:peterbu...@hotmail.com>;
build-dev@openjdk.java.net<mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net><mailto:build-dev@openjdk.java.net>
Subject: Re: Building OpenJDK9 on MSYS2
Actually, it wasn't so much remaining trouble. :-) I fired up msys2 and
checked out where I left off. It turned out that the remaining snag was
that msys2 tries to convert command lines automatically, from "unix"
style paths to "windows" style paths. Unfortunately, it does not do this
very well and it breaks all sorts of things. We already have a FIXPATH
solution in place which deals with this, so basically all I had to do
was disable this (by setting MSYS2_ARG_CONV_EXCL to "*"). However, this
broke our cygpath replacement hack (!) so I had to disable it there.
Sigh. Anyway, with those fixes it ran and worked well. (I also
discovered and fixed a bug related to how we set up the FIXPATH variable
on msys, but it only triggers in certain circumstances).
With this patch I now jdk9 seems to build fine on msys2. It should apply
cleanly on jdk9/jdk9. Since it turned out to be so trivial, I'll try to
get it in in jdk10.
Here's the patch if you want to apply it yourself:
diff -r a08cbfc0e4ec common/autoconf/basics_windows.m4
--- a/common/autoconf/basics_windows.m4 Thu Aug 03 18:56:56 2017
+0000
+++ b/common/autoconf/basics_windows.m4 Wed Oct 04 00:53:58 2017
+0200
@@ -42,7 +42,7 @@
windows_path=`$CYGPATH -m "$unix_path"`
$1="$windows_path"
elif test "x$OPENJDK_BUILD_OS_ENV" = "xwindows.msys"; then
- windows_path=`cmd //c echo $unix_path`
+ windows_path=`MSYS2_ARG_CONV_EXCL= cmd //c echo $unix_path`
$1="$windows_path"
fi
])
@@ -136,6 +136,16 @@
fi
])
+AC_DEFUN([BASIC_MSYS_UPDATE_FIXPATH],
+[
+ # Take all collected prefixes and turn them into a
-m/c/foo@/c/bar@... command line
+ # @ was chosen as separator to minimize risk of other tools messing
around with it
+ all_unique_prefixes=`echo "${all_fixpath_prefixes@<:@@@:>@}" \
+ | tr ' ' '\n' | $GREP '^/./' | $SORT | $UNIQ`
+ fixpath_argument_list=`echo $all_unique_prefixes | tr ' ' '@'`
+ FIXPATH="$FIXPATH_BIN -m$fixpath_argument_list"
+])
+
AC_DEFUN([BASIC_FIXUP_PATH_MSYS],
[
path="[$]$1"
@@ -143,7 +153,7 @@
new_path="$path"
if test "x$has_colon" = x; then
# Not in mixed or Windows style, start by that.
- new_path=`cmd //c echo $path`
+ new_path=`MSYS2_ARG_CONV_EXCL= cmd //c echo $path`
fi
BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
@@ -155,6 +165,8 @@
# Save the first 10 bytes of this path to the storage, so fixpath
can work.
all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}"
"${new_path:0:10}")
+ # We might need to re-evaluate FIXPATH.
+ BASIC_MSYS_UPDATE_FIXPATH
])
AC_DEFUN([BASIC_FIXUP_EXECUTABLE_CYGWIN],
@@ -293,7 +305,7 @@
# Do not save /bin paths to all_fixpath_prefixes!
else
# Not in mixed or Windows style, start by that.
- new_path=`cmd //c echo $new_path`
+ new_path=`MSYS2_ARG_CONV_EXCL= cmd //c echo $new_path`
BASIC_MAKE_WINDOWS_SPACE_SAFE_MSYS([$new_path])
# Output is in $new_path
BASIC_WINDOWS_REWRITE_AS_UNIX_PATH(new_path)
@@ -302,6 +314,8 @@
# Save the first 10 bytes of this path to the storage, so fixpath
can work.
all_fixpath_prefixes=("${all_fixpath_prefixes@<:@@@:>@}"
"${new_path:0:10}")
+ # We might need to re-evaluate FIXPATH.
+ BASIC_MSYS_UPDATE_FIXPATH
fi
])
@@ -347,6 +361,10 @@
WINDOWS_ENV_VENDOR='msys'
WINDOWS_ENV_VERSION="$MSYS_VERSION"
+ # Prohibit msys2 path conversion from trying to be "intelligent",
and rely
+ # on fixpath instead.
+ export MSYS2_ARG_CONV_EXCL="*"
+
AC_MSG_CHECKING([msys root directory as unix-style path])
# The cmd output ends with Windows line endings (CR/LF), the grep
command will strip that away
MSYS_ROOT_PATH=`cd / ; cmd /c cd | $GREP ".*"`
@@ -391,10 +409,7 @@
elif test "x$OPENJDK_BUILD_OS_ENV" = xwindows.msys; then
# Take all collected prefixes and turn them into a
-m/c/foo@/c/bar@... command line
# @ was chosen as separator to minimize risk of other tools
messing around with it
- all_unique_prefixes=`echo "${all_fixpath_prefixes@<:@@@:>@}" \
- | tr ' ' '\n' | $GREP '^/./' | $SORT | $UNIQ`
- fixpath_argument_list=`echo $all_unique_prefixes | tr ' ' '@'`
- FIXPATH="$FIXPATH_BIN -m$fixpath_argument_list"
+ BASIC_MSYS_UPDATE_FIXPATH
fi
FIXPATH_SRC_W="$FIXPATH_SRC"
FIXPATH_BIN_W="$FIXPATH_BIN"
diff -r a08cbfc0e4ec common/autoconf/build-aux/config.sub
--- a/common/autoconf/build-aux/config.sub Thu Aug 03 18:56:56
2017 +0000
+++ b/common/autoconf/build-aux/config.sub Wed Oct 04 00:53:58
2017 +0200
@@ -30,7 +30,7 @@
DIR=`dirname $0`
# First, filter out everything that doesn't begin with "aarch64-"
-if ! echo $* | grep '^aarch64-' >/dev/null ; then
+if ! echo $* | grep -e '^aarch64-' -e 'msys' >/dev/null ; then
. $DIR/autoconf-config.sub "$@"
# autoconf-config.sub exits, so we never reach here, but just in
# case we do:
@@ -38,13 +38,17 @@
fi
while test $# -gt 0 ; do
- case $1 in
+ case $1 in
-- ) # Stop option processing
shift; break ;;
aarch64-* )
config=`echo $1 | sed 's/^aarch64-/arm-/'`
sub_args="$sub_args $config"
shift; ;;
+ *-msys )
+ config=`echo $1 | sed 's/msys/mingw32/'`
+ sub_args="$sub_args $config"
+ shift; ;;
- ) # Use stdin as input.
sub_args="$sub_args $1"
shift; break ;;
diff -r a08cbfc0e4ec common/autoconf/spec.gmk.in
--- a/common/autoconf/spec.gmk.in Thu Aug 03 18:56:56 2017 +0000
+++ b/common/autoconf/spec.gmk.in Wed Oct 04 00:53:58 2017 +0200
@@ -120,6 +120,13 @@
# On Windows, the Visual Studio toolchain needs the PATH to be
adjusted
# to include Visual Studio tools (this needs to be in cygwin/msys
style).
export PATH:=@VS_PATH@
+
+endif
+
+ifeq ($(OPENJDK_TARGET_OS_ENV), windows.msys)
+ # On msys2, prohibit msys path conversion from trying to be
+ # "intelligent", and rely on fixpath instead.
+ export MSYS2_ARG_CONV_EXCL:=*
endif
SYSROOT_CFLAGS := @SYSROOT_CFLAGS@
/Magnus
On 2017-10-03 22:34, Magnus Ihse Bursie wrote:
I gave msys2 a shot some time ago, but it ended up too much trouble.
I'll share some of my notes from that attempt, for what it's worth.
To install package X/Y, run "pacman -S X/Y". Missing tools and
packages where to find them:
cmp: msys/diffutils
tar: msys/tar
make: msys/make
unzip: msys/unzip
zip: msys/zip
config.sub reports msys as "x86_64-pc-mingw32" but msys2 as
"x86_64-pc-msys". This patch adds postprocessing in "our" config.sub
to report msys2 similar to msys. (Opinions, including my own :-) may
vary if this really is the best way..)
diff -r b88023f46daa common/autoconf/build-aux/config.sub
--- a/common/autoconf/build-aux/config.sub Fri Jan 27 10:15:41
2017 +0100
+++ b/common/autoconf/build-aux/config.sub Fri Feb 03 05:00:25
2017 -0700
@@ -30,7 +30,7 @@
DIR=`dirname $0`
# First, filter out everything that doesn't begin with "aarch64-"
-if ! echo $* | grep '^aarch64-' >/dev/null ; then
+if ! echo $* | grep -e '^aarch64-' -e 'msys' >/dev/null ; then
. $DIR/autoconf-config.sub "$@"
# autoconf-config.sub exits, so we never reach here, but just in
# case we do:
@@ -45,6 +45,10 @@
config=`echo $1 | sed 's/^aarch64-/arm-/'`
sub_args="$sub_args $config"
shift; ;;
+ *-msys )
+ config=`echo $1 | sed 's/msys/mingw32/'`
+ sub_args="$sub_args $config"
+ shift; ;;
- ) # Use stdin as input.
sub_args="$sub_args $1"
shift; break ;;
If I remember correctly, this got me past the configure stage at the
time.
I don't think it's very hard to get it to work on msys2, I just ran
into one snag too many and didn't think msys2 would be used by anyone.
/Magnus
On 2017-10-03 17:20, Peter Budai wrote:
Hello,
According to
http://hg.openjdk.java.net/jdk9/jdk9/file/a08cbfc0e4ec/common/doc/building.html
“msys2 and the new Windows Subsystem for Linux (WSL) would likely be
possible to support in a future version but that would require a
community effort to implement”
I’d like to help making the OpenJDK 9 build working on msys2. What is
the best way to move forward? Is there a similar effort in progress?
Thank you and best regards,
Peter
