update libsnappyjava.so for ppc64le to make it compat with rhel 7

[josiahsams]

This PR will address the issue reported in #220 for ppc64le arch.

The GLIBC 2.22 dependency is only due to the following ,

$ objdump -T ./libsnappyjava.so | grep GLIBC_2.22
0000000000000000      DF *UND*	0000000000000000  GLIBC_2.22  __tls_get_addr_opt

To circumvent this call, we can use linker flags --no-tls-optimize,--no-tls-get-addr-optimize to disable it.

The .so file attached to this PR is compiled with these flags and relevant changes are made with Makefile and its applicable only for ppcle64 arch.

Ref: https://stackoverflow.com/questions/58958084/disabling-tls-get-addr-opt-for-ppc

[xerial]

@josiahsams Can we add this configuration to Makefile.common instead?

snappy-java/Makefile.common

Lines 111 to 120 in acaca7f

	Linux-ppc64le_CXX := $(CROSS_PREFIX)g++
	Linux-ppc64le_STRIP := $(CROSS_PREFIX)strip
	ifeq ($(IBM_JDK_7),)
	Linux-ppc64le_CXXFLAGS := -Ilib/inc_linux -I$(JAVA_HOME)/include -Ilib/inc_mac -O2 -fPIC -fvisibility=hidden -m64
	else
	Linux-ppc64le_CXXFLAGS := -include $(IBM_JDK_LIB)/jni_md.h -include $(IBM_JDK_LIB)/jniport.h -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/linux -O2 -fPIC -m64
	endif
	Linux-ppc64le_LINKFLAGS := -shared -static-libgcc -static-libstdc++
	Linux-ppc64le_LIBNAME := libsnappyjava.so
	Linux-ppc64le_SNAPPY_FLAGS :=

[josiahsams]

@xerial , Moved the linker flags to Makefile.common.

This patch is also required for versions 1.1.7, 1.1.7.1, 1.1.7.2, 1.1.7.3 & master.

Thanks.

[xerial]

Thanks. I'll just release 1.1.7.4 as 1.1.7.x are minor fixes over 1.1.7

[jamesbroadhead]

Hi @xerial -

Do you have an intended release date for 1.1.7.4?
We'd like to upgrade to regain ppc64le support.
(apologies if I missed this somewhere)

Thank you -- James

[d0lphis]

Hi @xerial,

There's a ticket from our side waiting for this fix, any update for the release date of 1.1.7.4?

Thanks

[HeartSaVioR]

Hello @xerial

we hit the issue on ppc64le + RHEL 7 and would like to upgrade to 1.1.7.4. Any update for the new release?

[xerial]

@HeartSaVioR Just released snappy-java 1.1.7.4 with this fix. Please try it.