[HDFS-3383] libhdfs does not build on ARM because jni_md.h is not found

• Type: Bug
• Status: Patch Available
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 0.23.1
• Component/s: libhdfs
• Labels: BB2015-05-TBR

Environment

Linux 3.2.0-1412-omap4 #16-Ubuntu SMP PREEMPT Tue Apr 17 19:38:42 UTC 2012 armv7l armv7l armv7l GNU/Linux
java version "1.7.0_04-ea"
Java(TM) SE Runtime Environment for Embedded (build 1.7.0_04-ea-b20, headless)
Java HotSpot(TM) Embedded Server VM (build 23.0-b21, mixed mode, experimental)

• Assignee: Unassigned
• Reporter: Trevor Robinson
• Created: 08/May/12 08:13
• Updated: 06/May/15 03:31

Description

The wrong include directory is used for jni_md.h:

[INFO] — make-maven-plugin:1.0-beta-1:make-install (compile) @ hadoop-hdfs —
[INFO] /bin/bash ./libtool --tag=CC --mode=compile gcc -DPACKAGE_NAME=\"libhdfs\" -DPACKAGE_TARNAME=\"libhdfs\" -DPACKAGE_VERSION=\"0.1.0\" -DPACKAGE_STRING=\"libhdfs\ 0.1.0\" -DPACKAGE_BUGREPORT=\"[e-mail]\" -DPACKAGE_URL=\"\" -DPACKAGE=\"libhdfs\" -DVERSION=\"0.1.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_STRDUP=1 -DHAVE_STRERROR=1 -DHAVE_STRTOUL=1 -DHAVE_FCNTL_H=1 -DHAVE__BOOL=1 -DHAVE_STDBOOL_H=1 -I. -g -O2 -DOS_LINUX -DDSO_DLFCN -DCPU=\"arm\" -I/usr/lib/jvm/ejdk1.7.0_04/include -I/usr/lib/jvm/ejdk1.7.0_04/include/arm -Wall -Wstrict-prototypes -MT hdfs.lo -MD -MP -MF .deps/hdfs.Tpo -c -o hdfs.lo hdfs.c
[INFO] libtool: compile: gcc -DPACKAGE_NAME=\"libhdfs\" -DPACKAGE_TARNAME=\"libhdfs\" -DPACKAGE_VERSION=\"0.1.0\" "-DPACKAGE_STRING=\"libhdfs 0.1.0\"" -DPACKAGE_BUGREPORT=\"[e-mail]\" -DPACKAGE_URL=\"\" -DPACKAGE=\"libhdfs\" -DVERSION=\"0.1.0\" -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DHAVE_DLFCN_H=1 -DLT_OBJDIR=\".libs/\" -DHAVE_STRDUP=1 -DHAVE_STRERROR=1 -DHAVE_STRTOUL=1 -DHAVE_FCNTL_H=1 -DHAVE__BOOL=1 -DHAVE_STDBOOL_H=1 -I. -g -O2 -DOS_LINUX -DDSO_DLFCN -DCPU=\"arm\" -I/usr/lib/jvm/ejdk1.7.0_04/include -I/usr/lib/jvm/ejdk1.7.0_04/include/arm -Wall -Wstrict-prototypes -MT hdfs.lo -MD -MP -MF .deps/hdfs.Tpo -c hdfs.c -fPIC -DPIC -o .libs/hdfs.o
[INFO] In file included from hdfs.h:33:0,
[INFO] from hdfs.c:19:
[INFO] /usr/lib/jvm/ejdk1.7.0_04/include/jni.h:45:20: fatal error: jni_md.h: No such file or directory
[INFO] compilation terminated.
[INFO] make: *** [hdfs.lo] Error 1

The problem is caused by hadoop-hdfs-project/hadoop-hdfs/src/main/native/m4/apsupport.m4 overriding supported_os=arm when host_cpu=arm*; supported_os should remain "linux", since it determines the jni_md.h include path. OpenJDK 6 and 7 (in Ubuntu 12.04, at least) and Oracle EJDK put jni_md.h in include/linux. Not sure if/why this ever worked before.

Issue Links

• relates to: HDFS-1920 libhdfs does not build for ARM processors