Fail to cross compiling jdk12 for mips64el-linux-gnu target
David Holmes
david.holmes at oracle.com
Thu Jan 24 02:47:41 UTC 2019
Hi Leslie,
I'm not Erik :) however ....
On 24/01/2019 12:28 pm, Leslie Zhai wrote:
> Hi Erik,
>
> Because the flags' macro of MIPS is different from other targets[1], it
> will effect the `UnixConstants` of
> src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template, for
> example, PREFIX_O_APPEND, so the `Flags` in `FileChannel` is different
> from other targets. Then failed[2] to cross compiling jdk12 for
> mips64el-linux-gnu target by following the document[3].
It's been quite a while since we built for a platform where the flags
had different values, but it is supposed to work. I suspect that the way
we build now with the module system may not be quite correct in this
regard - but that is just supposition on my part. Because compile-time
constants are stored directly into class files that use them, we have to
generate UnixConstants.java before compiling any class that needs to use
it, then we must compile all classes that do use it. Those classes must
only be executed in conjunction with a tool executing on the target
platform (javac, jmod etc). My suspicion is that we may be executing a
tool on the build platform using the newly compiled classes for the
target platform - and that would be wrong.
David
-----
> Workaround 1:
>
> Only make hotspot, then scp
> build/linux-mips64el-normal-server-fastdebug/jdk/lib/server/libjvm.so to
> mips64el target machine, java version is able to work[4], but it needs
> to make images on mips64el target machine at first.
>
> Workaround 2:
>
> Just change[5] the flags' macro of MIPS to keep same with other
> targets. Even if succeed to cross compiling, and java version is able
> to work on target machine, but jmod[6], javac, etc. failed to work.
> Because buildjdk/jdk/bin/jmod is x86-64, but images/jdk/bin/jmod is
> mips64el target, the flags' macro is still different in X86 host and
> MIPS target machine.
>
> Please give me some advice about how to fix the root cause, thanks a lot!
>
> Regards,
>
> Leslie Zhai
>
>
> 1.
>
> $ diff -Naur sysdeps/unix/sysv/linux/x86/bits/fcntl.h
> sysdeps/unix/sysv/linux/mips/bits/fcntl.h
> --- sysdeps/unix/sysv/linux/x86/bits/fcntl.h 2019-01-23
> 11:46:18.712301739 +0800
> +++ sysdeps/unix/sysv/linux/mips/bits/fcntl.h 2019-01-23
> 11:46:18.540304458 +0800
> @@ -1,5 +1,5 @@
> -/* O_*, F_*, FD_* bit values for Linux/x86.
> - Copyright (C) 2001-2017 Free Software Foundation, Inc.
> +/* O_*, F_*, FD_* bit values for Linux.
> + Copyright (C) 1995-2017 Free Software Foundation, Inc.
> This file is part of the GNU C Library.
>
> The GNU C Library is free software; you can redistribute it and/or
> @@ -13,24 +13,56 @@
> Lesser General Public License for more details.
>
> You should have received a copy of the GNU Lesser General Public
> - License along with the GNU C Library; if not, see
> + License along with the GNU C Library. If not, see
> <http://www.gnu.org/licenses/>. */
>
> -#ifndef _FCNTL_H
> +#ifndef _FCNTL_H
> # error "Never use <bits/fcntl.h> directly; include <fcntl.h> instead."
> #endif
>
> -#ifdef __x86_64__
> -# define __O_LARGEFILE 0
> +#include <sgidefs.h>
> +
> +#define O_APPEND 0x0008
> +#define O_SYNC 0x4010
> +#define O_NONBLOCK 0x0080
> +#define O_CREAT 0x0100 /* not fcntl */
> +#define O_TRUNC 0x0200 /* not fcntl */
> +#define O_EXCL 0x0400 /* not fcntl */
> +#define O_NOCTTY 0x0800 /* not fcntl */
> +#define O_ASYNC 0x1000
> +
> +#define __O_DIRECT 0x8000 /* Direct disk access hint. */
> +#define __O_DSYNC 0x0010 /* Synchronize data. */
> +
> +#if _MIPS_SIM == _ABI64
> +/* Not necessary, files are always with 64bit off_t. */
> +# define __O_LARGEFILE 0
> +#else
> +# define __O_LARGEFILE 0x2000 /* Allow large file opens. */
> #endif
>
> -#ifdef __x86_64__
> -/* Not necessary, we always have 64-bit offsets. */
> -# define F_GETLK64 5 /* Get record locking info. */
> -# define F_SETLK64 6 /* Set record locking info (non-blocking). */
> -# define F_SETLKW64 7 /* Set record locking info (blocking). */
> +#ifndef __USE_FILE_OFFSET64
> +# define F_GETLK 14 /* Get record locking info. */
> +# define F_SETLK 6 /* Set record locking info (non-blocking). */
> +# define F_SETLKW 7 /* Set record locking info (blocking). */
> +#else
> +# define F_GETLK F_GETLK64 /* Get record locking info. */
> +# define F_SETLK F_SETLK64 /* Set record locking info
> (non-blocking).*/
> +# define F_SETLKW F_SETLKW64 /* Set record locking info (blocking). */
> #endif
>
> +#if _MIPS_SIM != _ABI64
> +# define F_GETLK64 33 /* Get record locking info. */
> +# define F_SETLK64 34 /* Set record locking info (non-blocking). */
> +# define F_SETLKW64 35 /* Set record locking info (blocking). */
> +#else
> +# define F_GETLK64 14 /* Get record locking info. */
> +# define F_SETLK64 6 /* Set record locking info (non-blocking).*/
> +# define F_SETLKW64 7 /* Set record locking info (blocking). */
> +#endif
> +
> +#define __F_SETOWN 24 /* Get owner (process receiving SIGIO). */
> +#define __F_GETOWN 23 /* Set owner (process receiving SIGIO). */
>
> struct flock
> {
> @@ -39,12 +71,23 @@
> #ifndef __USE_FILE_OFFSET64
> __off_t l_start; /* Offset where the lock begins. */
> __off_t l_len; /* Size of the locked area; zero means until
> EOF. */
> +#if _MIPS_SIM != _ABI64
> + /* The 64-bit flock structure, used by the n64 ABI, and for 64-bit
> + fcntls in o32 and n32, never has this field. */
> + long int l_sysid;
> +#endif
> #else
> __off64_t l_start; /* Offset where the lock begins. */
> __off64_t l_len; /* Size of the locked area; zero means until
> EOF. */
> #endif
> __pid_t l_pid; /* Process holding the lock. */
> +#if ! defined __USE_FILE_OFFSET64 && _MIPS_SIM != _ABI64
> + /* The 64-bit flock structure, used by the n64 ABI, and for 64-bit
> + flock in o32 and n32, never has this field. */
> + long int __glibc_reserved0[4];
> +#endif
> };
> +typedef struct flock flock_t;
>
> #ifdef __USE_LARGEFILE64
> struct flock64
>
> ----- 8< -------- 8< -------- 8< -------- 8< -------- 8< -------- 8< ---
>
> 2.
>
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/jdk/bin/jmod
> -J-XX:+UseSerialGC -J-Xms32M -J-Xmx512M -J-XX:TieredStopAtLevel=1 create
> --module-version 12-internal --target-platform 'linux-mips64el'
> --module-path
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/support/interim-jmods
> --libs
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/modules_libs/java.base
> --cmds
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/modules_cmds/java.base
> --config
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/modules_conf/java.base
> --class-path
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/jdk/modules/java.base
> --header-files
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/modules_include/java.base
> --legal-notices
> "/home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/modules_legal/common:/home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/modules_legal/java.base"
> --exclude
> '**{_the.*,_*.marker,*.diz,*.debuginfo,*.dSYM/**,*.dSYM,*.pdb,*.map}'
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/support/interim-jmods/temp/java.base.jmod
> > >(/usr/bin/tee -a
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/jmods/java.base.jmod.log)
> 2> >(/usr/bin/tee -a
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/jmods/java.base.jmod.log
> >&2) || ( exitcode=$? && /bin/cp
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/jmods/java.base.jmod.log
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/make-support/failure-logs/buildjdk_support_jmods_java.base.jmod.log
> && /bin/cp
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/buildjdk/support/jmods/java.base.jmod.cmdline
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/make-support/failure-logs/buildjdk_support_jmods_java.base.jmod.cmdline
> && exit $exitcode ) )
> Error:
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/support/interim-jmods/temp/.java.base.jmod.tmp
>
> java.nio.file.NoSuchFileException:
> /home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/support/interim-jmods/temp/.java.base.jmod.tmp
>
> at
> java.base/sun.nio.fs.UnixException.translateToIOException(UnixException.java:92)
>
> at
> java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:111)
>
> at
> java.base/sun.nio.fs.UnixException.rethrowAsIOException(UnixException.java:116)
>
> at
> java.base/sun.nio.fs.UnixFileSystemProvider.newByteChannel(UnixFileSystemProvider.java:215)
>
> at
> java.base/java.nio.file.spi.FileSystemProvider.newOutputStream(FileSystemProvider.java:478)
>
> at java.base/java.nio.file.Files.newOutputStream(Files.java:219)
> at
> jdk.jlink/jdk.tools.jmod.JmodOutputStream.newOutputStream(JmodOutputStream.java:52)
>
> at jdk.jlink/jdk.tools.jmod.JmodTask.create(JmodTask.java:437)
> at jdk.jlink/jdk.tools.jmod.JmodTask.run(JmodTask.java:208)
> at jdk.jlink/jdk.tools.jmod.Main.main(Main.java:34)
> CreateJmods.gmk:162: recipe for target
> '/home/loongson/zhaixiang/jdk12-mips/build/linux-mips64el-normal-server-fastdebug/support/interim-jmods/java.base.jmod'
> failed
> ----- 8< -------- 8< -------- 8< -------- 8< -------- 8< -------- 8< ---
>
> 3.
>
> https://hg.openjdk.java.net/jdk/jdk/raw-file/tip/doc/building.html#cross-compiling
>
>
> 4.
>
> $ ./build/linux-mips64el-normal-server-fastdebug/images/jdk/bin/java
> -version
> openjdk version "12-internal" 2019-03-19
> OpenJDK Runtime Environment (fastdebug build
> 12-internal+0-adhoc.loongson.jdk-mips)
> OpenJDK 64-Bit Server VM (fastdebug build
> 12-internal+0-adhoc.loongson.jdk-mips, mixed mode)
>
> 5.
>
> diff -r 294c0bb90976
> src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template
> --- a/src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template
> Wed Jan 09 15:39:04 2019 +0800
> +++ b/src/java.base/unix/classes/sun/nio/fs/UnixConstants.java.template
> Thu Jan 24 10:19:04 2019 +0800
> @@ -28,7 +28,11 @@
> #include <stdio.h>
> #include <errno.h>
> #include <unistd.h>
> +#ifdef MIPS_SYSROOT
> +#include <asm-generic/fcntl.h>
> +#else
> #include <fcntl.h>
> +#endif
> #include <sys/stat.h>
>
> /* On Solaris, "sun" is defined as a macro. Undefine to make package
>
> 6.
>
> $ file build/linux-mips64el-normal-server-fastdebug/buildjdk/jdk/bin/jmod
> build/linux-mips64el-normal-server-fastdebug/buildjdk/jdk/bin/jmod: ELF
> 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked,
> interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.32,
> BuildID[sha1]=7095b74502322b08957f0b4aaa3b9c5c8ceba5b6, not stripped
>
> $ file build/linux-mips64el-normal-server-fastdebug/images/jdk/bin/jmod
> build/linux-mips64el-normal-server-fastdebug/images/jdk/bin/jmod: ELF
> 64-bit LSB shared object, MIPS, MIPS64 rel2 version 1 (SYSV),
> dynamically linked, interpreter /lib64/ld.so.1,
> BuildID[sha1]=4dd81abf1b06d9bc90063b53a50549dd15434232, for GNU/Linux
> 3.2.0, not stripped
>
>
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