rupan / gmp Goto Github PK

Hi,
Would you mind recompiling on the latest NDK and updating the repo.

Would you mind providing examples for steps 2 and 3?

1. Add "gmp" to APP_MODULES in jni/Application.mk
2. Add "gmp" to LOCAL_SHARED_LIBRARIES in your module's Android.mk as required.

I may have other issues, but I wanted to make sure following steps 2 and 3 were not one of them.

Here is what I have at the moment:

Application.mk
APP_MODULES := gmp

Android.mk
LOCAL_PATH := $(call my-dir)
include $(CLEAR_VARS)

LOCAL_MODULE := foo
LOCAL_SRC_FILES := foo.cpp

LOCAL_SHARED_LIBRARIES := gmp

include $(BUILD_SHARED_LIBRARY)

Thanks!

can't compile for modern devices :( any ideas?

Here's my config.log starting from line 340. Any ideas?

configure:10521: checking C++ compiler aarch64-linux-android-g++  -O2 -g -pedantic -fomit-frame-pointer -Wa,--noexecstack -ffunction-sections -funwind-tables -no-canonical-prefixes -fno-strict-aliasing -fstack-protector-strong -finline-limit=300 -funswitch-loops
Test compile: 
configure:10535: aarch64-linux-android-g++  -O2 -g -pedantic -fomit-frame-pointer -Wa,--noexecstack -ffunction-sections -funwind-tables -no-canonical-prefixes -fno-strict-aliasing -fstack-protector-strong -finline-limit=300 -funswitch-loops conftest.cc >&5
clang80++: warning: optimization flag '-finline-limit=300' is not supported [-Wignored-optimization-argument]
clang80++: warning: optimization flag '-funswitch-loops' is not supported [-Wignored-optimization-argument]
/home/hongwu/devel/2020/Android/my-toolchain/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find crtbegin_dynamic.o: No such file or directory
/home/hongwu/devel/2020/Android/my-toolchain/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lc++
/home/hongwu/devel/2020/Android/my-toolchain/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find crtend_android.o: No such file or directory
clang80++: error: linker command failed with exit code 1 (use -v to see invocation)
configure:10538: $? = 1
failed program was:

int main (void) { return 0; }
configure:10650: result: no
configure:10521: checking C++ compiler aarch64-linux-android-g++  -g -O2
Test compile: 
configure:10535: aarch64-linux-android-g++  -g -O2 conftest.cc >&5
/home/hongwu/devel/2020/Android/my-toolchain/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find crtbegin_dynamic.o: No such file or directory
/home/hongwu/devel/2020/Android/my-toolchain/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find -lc++
/home/hongwu/devel/2020/Android/my-toolchain/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: cannot find crtend_android.o: No such file or directory
clang80++: error: linker command failed with exit code 1 (use -v to see invocation)
configure:10538: $? = 1
failed program was:

int main (void) { return 0; }
configure:10650: result: no
configure:10666: error: C++ compiler not available, see config.log for details

Hi,

Thanks for the latest repo update it works a treat.

Would you please if possible include x86 and MIPS compiled binaries to the set.

I have tried to build gmp-5.0.5 myself using Cygwin under Win 7 Ultimate x64 but have got errors I have not been able to resolve.
I am busy building an Ubuntu v12.04 machine (using VM Virtual box) so that I have the same build environment you describe but have not completed it yet.

In the meantime I would apreciate any pointers with where my problem may be in building the library,

I changed the first export command (in compile-gmp.sh) to export NDK="/cygdrive/f/Android/android-ndk-r8b" (which is the correct path for the NDK) and I get the following when running the script,

Deon Marais@Deon-Desktop-Ne /cygdrive/f/Android/gmp-5.0.5
$ ./compile-gmp.sh
checking build system type... i686-pc-linux-gnu
checking host system type... arm-unknown-linux-androideabi
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-linux-androideabi-strip... arm-linux-androideabi-strip
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking ABI=standard
checking compiler arm-linux-androideabi-gcc -O2 -pedantic -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=neon -ftree-vectorize -ftree-vectorizer-verbose=2 ... yes
checking whether ARM gcc unsigned division works... yes
checking for arm-linux-androideabi-gcc... arm-linux-androideabi-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether arm-linux-androideabi-gcc accepts -g... yes
checking for arm-linux-androideabi-gcc option to accept ISO C89... none needed
checking for arm-linux-androideabi-gcc option to accept ISO C99... -std=gnu99
checking for arm-linux-androideabi-gcc -std=gnu99 option to accept ISO Standard C... (cached) -std=gnu99
checking how to run the C preprocessor... arm-linux-androideabi-gcc -std=gnu99 -E
checking build system compiler arm-linux-androideabi-gcc -std=gnu99... no
checking build system compiler arm-linux-androideabi-gcc -std=gnu99 -O2 -pedantic -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp -mfpu=neon -ftree-vectorize -ftree-vectorizer-verbose=2 ... no
checking build system compiler cc... no
checking build system compiler gcc... no
checking build system compiler c89... no
checking build system compiler c99... no
configure: error: Cannot find a build system compiler
make: *** No targets specified and no makefile found. Stop.
make: Nothing to be done for install'. ./compile-gmp.sh: line 45: cd: armeabi-v7a-neon: No such file or directory make: *** No rule to make targetdistclean'. Stop.
checking build system type... i686-pc-linux-gnu
checking host system type... arm-unknown-linux-androideabi
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-linux-androideabi-strip... arm-linux-androideabi-strip
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking ABI=standard
checking compiler arm-linux-androideabi-gcc -O2 -pedantic -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp ... yes
checking whether ARM gcc unsigned division works... yes
checking for arm-linux-androideabi-gcc... arm-linux-androideabi-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether arm-linux-androideabi-gcc accepts -g... yes
checking for arm-linux-androideabi-gcc option to accept ISO C89... none needed
checking for arm-linux-androideabi-gcc option to accept ISO C99... -std=gnu99
checking for arm-linux-androideabi-gcc -std=gnu99 option to accept ISO Standard C... (cached) -std=gnu99
checking how to run the C preprocessor... arm-linux-androideabi-gcc -std=gnu99 -E
checking build system compiler arm-linux-androideabi-gcc -std=gnu99... no
checking build system compiler arm-linux-androideabi-gcc -std=gnu99 -O2 -pedantic -fomit-frame-pointer -march=armv7-a -mfloat-abi=softfp ... no
checking build system compiler cc... no
checking build system compiler gcc... no
checking build system compiler c89... no
checking build system compiler c99... no
configure: error: Cannot find a build system compiler
make: *** No targets specified and no makefile found. Stop.
make: Nothing to be done for install'. ./compile-gmp.sh: line 53: cd: armeabi-v7a: No such file or directory make: *** No rule to make targetdistclean'. Stop.
checking build system type... i686-pc-linux-gnu
checking host system type... arm-unknown-linux-androideabi
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for arm-linux-androideabi-strip... arm-linux-androideabi-strip
checking for a thread-safe mkdir -p... /usr/bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking ABI=standard
checking compiler arm-linux-androideabi-gcc -O2 -pedantic -fomit-frame-pointer ... yes
checking whether ARM gcc unsigned division works... yes
checking for arm-linux-androideabi-gcc... arm-linux-androideabi-gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... yes
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether arm-linux-androideabi-gcc accepts -g... yes
checking for arm-linux-androideabi-gcc option to accept ISO C89... none needed
checking for arm-linux-androideabi-gcc option to accept ISO C99... -std=gnu99
checking for arm-linux-androideabi-gcc -std=gnu99 option to accept ISO Standard C... (cached) -std=gnu99
checking how to run the C preprocessor... arm-linux-androideabi-gcc -std=gnu99 -E
checking build system compiler arm-linux-androideabi-gcc -std=gnu99... no
checking build system compiler arm-linux-androideabi-gcc -std=gnu99 -O2 -pedantic -fomit-frame-pointer ... no
checking build system compiler cc... no
checking build system compiler gcc... no
checking build system compiler c89... no
checking build system compiler c99... no
configure: error: Cannot find a build system compiler
make: *** No targets specified and no makefile found. Stop.
make: Nothing to be done for install'. ./compile-gmp.sh: line 61: cd: armeabi: No such file or directory make: *** No rule to make targetdistclean'. Stop.

Thanks again.

Using the latest 6.1.2 version of your pre-built libraries, I noticed when compiling on Android 7 (Nougat) using "compileSdkVersion 22" the system presented the warning "Detected problems with app native libraries (please consult log for detail): libgmp.so: text relocations". If I increased the "compileSdkVersion" to 23 or above, the warning changes to a FATAL ERROR, preventing the app from running.

It seems newer versions of Android are disallowing libraries that include text relocations (TEXTRELs) within them. Doing research shows that a GCC compiler flag, -fPIC, can be used to remove text relocations when compiling. Further research showed that GMP shared libraries should use the -fPIC compiler flag by default. This prompted me to check which shared libraries included the TEXTRELs and of the 3 I was using, only the "armeabi" and "armeabi-v7a" libraries included them. Continuing my research showed -fPIC is unable to remove all text relocations from some architecture builds if the TEXTRELs are hand written in assembly; namely ARM builds.

I am logging this issue to ask if -fPIC was indeed enabled for the "armeabi" and "armeabi-v7a" builds. If so, has anyone fixed this issue in another way?

I am discussing the issue on the GMP Discussion email chain now and will most likely move to submitting it as a "bug". However, I want to make sure -fPIC was indeed used to compile the libraries before I mark it as such.

Hi

I'm using your precompiled library, but I get seg faults when I use for example:
mpz_divexact(z, deg, fac);

Would using a static library perhaps solve this issue? Or is there something that I'm doing wrong?

Every thing builds and links fine when build with ndk-build.

Hello Rupan,

Firstly a big thanks for this repo. I have used it for my work and it is working pretty fine with android API 23. But, I am facing "dlopen failed: cannot locate symbol "localeconv" referenced by libgmp.so" error while accessing the same for API 19. Kindly suggest me a fix.

Thanks