So while compiling android kernel for my 1plus phone, after multiples attempts over 3 days, I gave up and give a try to ask here if anyone had this problem before.
The bug is a bit obscure to me, but I feel like the problem comes from my recent change to a GNU/Linux distribution (Gentoo), which is somehow overriding the AS environment variable when it shouldn't; it fails at assembling VDSO, but I've no idea sadly from where the overriding comes. (maybe they did a modify the make command in order to allow supporting flags overriding etc..)
EDIT, Small version:
make RANLIB=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-ranlib CC='/media/sda2/git/linux-x86/clang-bootstrap/bin/clang -fintegrated-as' LD=/media/sda2/git/linux-x86/clang-bootstrap/bin/ld.lld AR=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-ar AS=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-as NM=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-nm OBJCOPY=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-objcopy OBJDUMP=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-objdump READELF=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-readelf OBJSIZE=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-size STRIP=/media/sda2/git/linux-x86/clang-bootstrap/bin/llvm-strip
CC kernel/bounds.s
CC arch/arm64/kernel/asm-offsets.s
In file included from arch/arm64/kernel/asm-offsets.c:25:
In file included from ./include/linux/kvm_host.h:39:
In file included from ./arch/arm64/include/asm/kvm_host.h:42:
In file included from ./include/kvm/arm_pmu.h:21:
In file included from ./include/linux/perf_event.h:57:
In file included from ./include/linux/cgroup.h:28:
./include/linux/cgroup-defs.h:475:16: warning: field 'cgrp' with variable sized type 'struct cgroup' not at the end of a struct or class is a GNU extension [-Wgnu-variable-sized-type-not-at-end]
struct cgroup cgrp;
^
1 warning generated.
CALL scripts/checksyscalls.sh
LDS arch/arm64/kernel/vdso/vdso.lds
VDSOA arch/arm64/kernel/vdso/gettimeofday.o
/usr/bin/as: unrecognized option '-EL'
clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
make[1]: *** [arch/arm64/kernel/vdso/Makefile:57: arch/arm64/kernel/vdso/gettimeofday.o] Error 1
make: *** [arch/arm64/Makefile:201: vdso_prepare] Error 2
Environment variables:
# https://android.googlesource.com/platform/prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/
export PATH='/media/sda2/git/aarch64-linux-android-4.9/bin':${PATH}
export LD_LIBRARY_PATH='/media/sda2/git/aarch64-linux-android-4.9/lib':${LD_LIBRARY_PATH}
# git clone https://android.googlesource.com/platform/prebuilts/clang/host/linux-x86
export PATH='/media/sda2/git/linux-x86/clang-bootstrap/bin':${PATH}
export LD_LIBRARY_PATH='/media/sda2/git/linux-x86/clang-bootstrap/lib':${LD_LIBRARY_PATH}
export ARCH=arm64
export SUBARCH=arm64
export CROSS_COMPILE='aarch64-linux-android-'
export CROSS_COMPILER=$PATH
export CLANG_TRIPLE='aarch64-linux-gnu-'
export KCFLAGS='-pipe -O3'
export KCPPFLAGS='-pipe -O3'
Kernel used:
https://github.com/LineageOS/android_kernel_oneplus_sm8250
Any ideas?
I use Google's clang prebuilt compiler (could build it myself but in order to gain time) in order to use polly for compiling android kernels since Gentoo LLVM team doesn't apparently have yet a use flag for it.
At worse I'm thinking to use Ubuntu binutils/automake etc / creating a docker environment in order to compile this kernel but this just doesn't make many sense to me since I should be able to do it on my own host system.
Thank you for your help and your care.
I got it solved.
After removing LD=/media/sda2/git/linux-x86/clang-bootstrap/bin/ld.lld for the linker, it worked, I suppose the clang linker was using /usr/bin/as by default and not aarch64-linux-android-as which is google's prebuilt. I'll need to investigate about it further. I'll edit this post once I found more.
I have met the same problem.
The root cause is that the CLANG_PATH should add before the PATH.
// have chance to use /usr/bin/as
export PATH=$PATH:$CLANG_PATH // wrong
export PATH=${CLANG_PATH}:${PATH} // correct
IGNORE
set the cross-compile tool patch correctly
The reason is that you do not set the CROSS_COMPILE and the CROSS_COMPILE_ARM32 correctly.
The aarch64-linux-android-as can not find in PATH. So it uses /usr/bin/as.
You should put the cross compile tools into patch or just set the absolute patch like this:
export CROSS_COMPILE=$CROSS/aarch64/aarch64-linux-android-4.9/bin/aarch64-linux-android-
export CROSS_COMPILE_ARM32=$CROSS/arm/arm-linux-androideabi-4.9/bin/arm-linux-androideabi-
do not set LD when make deconfig
- make CC=clang LD=ld.lld HOSTCC=clang AR=llvm-ar NM=llvm-nm OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump STRIP=llvm-strip O=out floral_defconfig
+ make CC=clang HOSTCC=clang AR=llvm-ar NM=llvm-nm OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump STRIP=llvm-strip O=out floral_defconfig
I have changes to this problem in one script but never meet it in another build script. By diffing the two files, I find the correct one does not set LD=ld.lld in make defconfig.
Related
I am trying to build an executable for Android with cross compiling, everything works but the executable complains that it could not find the .so file it needs, which is in the same directory as the executable.
So what I did is to add the following lines
set(TARGET myapp)
# following 4 lines added to add RPATH of ./ to the binary
# so it searches the .so in the same directory
SET(CMAKE_SKIP_BUILD_RPATH FALSE)
SET(CMAKE_SKIP_RPATH FALSE)
set(CMAKE_INSTALL_RPATH $ORIGIN)
SET(CMAKE_BUILD_WITH_INSTALL_RPATH ON)
# add source code to target
add_executable(${TARGET} src.cpp)
...
However, it builds the executable, but RPATH seems not working no matter how I play with the four lines above, I just could not find any RPATH info in the binary using readelf or objdump.
I also tried set_target_properties(${TARGET} PROPERTIES INSTALL_RPATH $ORIGIN) but still not working.
Did I miss use anything here for RPATH configuration?
update
just to note that if I build the app for host(Linux) (using the same cmake file except using the android ndk tool chain) then everything is fine, I see $ORIGIN in the binary RPATH using readelf.
although i dont know what is been done in android ndk tool chain
This is probably not what you want:
(I am mentioning it just to be complete with my answer)
I assume that $ORIGIN is an environment variable. If that is the case you need to explain to CMake that it is such an variable. You can use $ENV{VAR} to do this, e.g.:
set(CMAKE_INSTALL_RPATH $ENV{ORIGIN})
This is probably what you want:
Ofcourse if the variable is not accessible during CMake generation step. You can try to use bracket arguments, however I do not think that alone would work (see last note at the bottom). Bracket arguments [=[...]=] tell CMake to skip the evaluation, because $ is a special character. e.g.:
set(CMAKE_INSTALL_RPATH [=[$ORIGIN]=])
To understand what [=[]=] do here is a simple example:
set(FOO "bar")
message(STATUS ${FOO})
message(STATUS [=[${FOO}]=])
Should output
bar
${FOO} #<-- evaluation of ${FOO} was skipped
Also if I'm not mistaken you also need to pass $ORIGIN to linker with single quotes so that it doesn't get evaluated during linking, i.e.
'$ORIGIN'
#and not $ORIGIN
I am trying to add a strip debug symbols step for my Android library which includes native shared libraries for different ABIs, e.g. x86/native-lib.so, x86_64/native-lib.so, arm64-v8a/native-lib.so, etc.
I understand that the strip command must be respective to each ABI. So, I need to invoke the correct strip command, for which I need to know its correct path during build time.
For example, for ABI x86_64, I need to have below path setting:
set(STRIP ~/Library/Android/android-ndk-r16b/toolchains/x86_64-4.9/prebuilt/darwin-x86_64/bin/x86_64-linux-android-strip)
add_custom_command(TARGET ${SHARED_LIBRARY_NAME} POST_BUILD
COMMAND ${STRIP}
"${DIST_LIBS_DIR}/${LIB_BUILD_TYPE}/${ANDROID_ABI}/lib${SHARED_LIBRARY_NAME}.so"
COMMENT "Strip debug symbols done on final binary.")
The path I need is illustrated like below:
So, my questions are:
Is there an existing CMake variable to point at this path, i.e. /android-ndk-r16b/toolchains/???/prebuilt/???/bin/???-???-???-strip?
If not, is there a way to form this path utilising other known Android CMake variable, e.g. ANDROID_NDK, ANDROID_ABI, etc?
Thanks #Alex Cohn a lot for pointing out the file android.toolchain.cmake which usually exists at directory ~/Library/Android/sdk/cmake/cmake_version_xxx/android.toolchain.cmake on macOS.
There are many useful Android CMake variables already configured inside, e.g.
ANDROID_NDK
ANDROID_TOOLCHAIN
ANDROID_ABI
ANDROID_PLATFORM
ANDROID_STL
ANDROID_PIE
ANDROID_CPP_FEATURES
ANDROID_ALLOW_UNDEFINED_SYMBOLS
ANDROID_ARM_MODE
ANDROID_ARM_NEON
ANDROID_DISABLE_NO_EXECUTE
ANDROID_DISABLE_RELRO
ANDROID_DISABLE_FORMAT_STRING_CHECKS
ANDROID_CCACHE
And the one ANDROID_TOOLCHAIN_PREFIX is exactly what I looked for, so my final CMake script comes into below:
add_custom_command(TARGET ${SHARED_LIBRARY_NAME} POST_BUILD
COMMAND "${ANDROID_TOOLCHAIN_PREFIX}strip" -g -S -d --strip-debug --verbose
"${DIST_LIBS_DIR}/${LIB_BUILD_TYPE}/${ANDROID_ABI}/lib${SHARED_LIBRARY_NAME}.so"
COMMENT "Strip debug symbols done on final binary.")
And I don't need to explicitly pass any additional arguments, i.e. DCMAKE_TOOLCHAIN_FILE=android.toolchain.cmake, from command line to the build process. Because, this file, i.e. android.toolchain.cmake, was already taken into account automatically by Android native build system.
You can use ${CMAKE_STRIP}. It is set appropriately when you use -DCMAKE_TOOLCHAIN_FILE=android.toolchain.cmake. I hope it is OK also if you work with 'built-in' Android support with supported NDK version.
I like to crosscompile Perl for the Android x86 emulator. But I got a PIE (position independent executables) error on running Configure... Based on this and this tutorial.
Specs:
NDK version 14
Perl 5.22.1.
x86 Android emulator built with AOSP - Android 7.1.1
I set following variables:
export ANDROID_NDK=/home/fabian/Android/Sdk/ndk-bundle
export TARGET_ARCH=x86
export ANDROID_TOOLCHAIN=/tmp/toolchain-x86
export SYSROOT=$ANDROID_TOOLCHAIN/sysroot
export TARGETDIR=/data/local/perl
export GCC=i686-linux-android-gcc
export PATH=$PATH:$ANDROID_NDK/toolchains/x86-4.9/prebuilt/linux-x86_64/bin
Then I build the toolchain with following command:
$ANDROID_NDK/build/tools/make-standalone-toolchain.sh --platform=android-23 --install-dir=$ANDROID_TOOLCHAIN --toolchain=x86-4.9
and get this (correct?) output:
HOST_OS=linux
HOST_EXE=
HOST_ARCH=x86_64
HOST_TAG=linux-x86_64
HOST_NUM_CPUS=4
BUILD_NUM_CPUS=8
Auto-config: --arch=x86
Toolchain installed to /tmp/toolchain-x86.
Then I start the ./Configure command:
./Configure -des -Dusedevel -Dusecrosscompile -Dtargetrun=adb -Dcc=i686-linux-android-gcc -Dsysroot=$SYSROOT -Dtargetdir=$TARGETDIR -Dtargethost=emulator-5554
and got this output:
First let's make sure your kit is complete. Checking...
Would you like to see the instructions? [n]
Locating common programs...
Checking compatibility between /bin/echo and builtin echo (if any)...
Symbolic links are supported.
Checking how to test for symbolic links...
You can test for symbolic links with 'test -h'.
Using targetarch i686-linux-android.
Using targethost emulator-5554.
Building host miniperl and generate_uudmap binaries
Using targethost emulator-5554.
Guessing targetuser root.
Guessing targetport 22.
Using '/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/run-adb' for remote execution,
and '/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/from-scp' and '/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/to-scp'
for remote file transfer.
Good, your tr supports [:lower:] and [:upper:] to convert case.
Using [:upper:] and [:lower:] to convert case.
aix_3 dragonfly irix_4 nonstopux stellar
aix_4 dynixptx irix_5 openbsd sunos_4_0
aix dynix irix_6_0 opus sunos_4_1
altos486 epix irix_6_1 os2 super-ux
amigaos esix4 irix_6 os390 svr4
atheos fps isc_2 os400 svr5
aux_3 freebsd isc posix-bc ti1500
bitrig freemint linux-android powerux ultrix_4
bsdos genix linux qnx umips
catamount gnukfreebsd lynxos riscos unicosmk
convexos gnuknetbsd midnightbsd sco_2_3_0 unicos
cxux gnu mips sco_2_3_1 unisysdynix
cygwin greenhills mirbsd sco_2_3_2 utekv
darwin haiku mpc sco_2_3_3 uwin
dcosx hpux ncr_tower sco_2_3_4 vos
dec_osf i386 netbsd sco
dos_djgpp interix newsos4 solaris_2
Which of these apply, if any? [linux-android]
"./a.out": error: only position independent executables (PIE) are supported.
Aborted
You don't have an ELF gcc. I will use dld if possible. If you are
using a version of DLD earlier than 3.2.6, or don't have it at all, you
should probably upgrade. If you are forced to use 3.2.4, you should
uncomment a couple of lines in hints/linux.sh and restart Configure so
that shared libraries will be disallowed.
Disabling ndbm. This will generate a Whoa There message in Configure.
Read hints/linux.sh for further information.
Operating system name? [linux-android]
Operating system version? [7.1.1]
Installation prefix to use? (~name ok) [/usr/local]
AFS does not seem to be running...
What installation prefix should I use for installing files? (~name ok)
[/usr/local]
Getting the current patchlevel...
Build a threading Perl? [n]
Build Perl for multiplicity? [n]
Use which C compiler? [i686-linux-android-gcc]
Checking for GNU cc in disguise and/or its version number...
"./try": error: only position independent executables (PIE) are supported.
Aborted
Now, how can we feed standard input to your C preprocessor...
Directories to use for library searches?
[/tmp/toolchain-x86/sysroot/usr/lib/../lib /tmp/toolchain-x86/sysroot/usr/lib]
What is the file extension used for shared libraries? [sa]
Make shared library basenames unique? [n]
Hmm. Based on the hints in hints/linux-android.sh,
the recommended value for $d_libname_unique on this machine was "define"!
Keep the recommended value? [y]
Build Perl for SOCKS? [n]
Try to use long doubles if available? [n]
Checking for optional libraries...
What libraries to use? [-lm -lc]
What optimizer/debugger flag should be used? [-O2]
Any additional cc flags?
[-DOVR_DBL_DIG=14 --sysroot=/tmp/toolchain-x86/sysroot]
Let me guess what the preprocessor flags are...
Any additional ld flags (NOT including libraries)?
[ --sysroot=/tmp/toolchain-x86/sysroot]
Checking your choice of C compiler and flags for coherency...
I've tried to compile and run the following simple program:
#include
int main() { printf("Ok\n"); return(0); }
I used the command:
i686-linux-android-gcc -o try -O2 -DOVR_DBL_DIG=14 --sysroot=/tmp/toolchain-x86/sysroot --sysroot=/tmp/toolchain-x86/sysroot try.c -lm -lc
/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/run-adb-shell ./try
and I got the following output:
The program compiled OK, but exited with status 134.
You have a problem. Shall I abort Configure [y]
Ok. Stopping Configure.
OK I have to set the flags
Modify config.sh to enable PIE support. Append “-fPIE” to ccflags and
“-fPIE -pie” to ldflags. Then rerun configure to ensure this is
applied.
But there is no config.sh in the perl folder, so I tried this ./Configure command:
`./Configure -des -Dusedevel -Dusecrosscompile -Dtargetrun=adb -Dcc=i686-linux-android-gcc -Dsysroot=$SYSROOT -Dtargetdir=$TARGETDIR -Dtargethost=emulator-5554 -Dccflags='-fPIE' Dldflags='-fPIE -pie'`
but same problem again...
First let's make sure your kit is complete. Checking...
Would you like to see the instructions? [n]
Locating common programs...
Checking compatibility between /bin/echo and builtin echo (if any)...
Symbolic links are supported.
Checking how to test for symbolic links...
You can test for symbolic links with 'test -h'.
Using targetarch i686-linux-android.
Using targethost emulator-5554.
Building host miniperl and generate_uudmap binaries
Using targethost emulator-5554.
Guessing targetuser root.
Guessing targetport 22.
Using '/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/run-adb' for remote execution,
and '/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/from-scp' and '/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/to-scp'
for remote file transfer.
Good, your tr supports [:lower:] and [:upper:] to convert case.
Using [:upper:] and [:lower:] to convert case.
aix_3 dragonfly irix_4 nonstopux stellar
aix_4 dynixptx irix_5 openbsd sunos_4_0
aix dynix irix_6_0 opus sunos_4_1
altos486 epix irix_6_1 os2 super-ux
amigaos esix4 irix_6 os390 svr4
atheos fps isc_2 os400 svr5
aux_3 freebsd isc posix-bc ti1500
bitrig freemint linux-android powerux ultrix_4
bsdos genix linux qnx umips
catamount gnukfreebsd lynxos riscos unicosmk
convexos gnuknetbsd midnightbsd sco_2_3_0 unicos
cxux gnu mips sco_2_3_1 unisysdynix
cygwin greenhills mirbsd sco_2_3_2 utekv
darwin haiku mpc sco_2_3_3 uwin
dcosx hpux ncr_tower sco_2_3_4 vos
dec_osf i386 netbsd sco
dos_djgpp interix newsos4 solaris_2
Which of these apply, if any? [linux-android]
"./a.out": error: only position independent executables (PIE) are supported.
Aborted
You don't have an ELF gcc. I will use dld if possible. If you are
using a version of DLD earlier than 3.2.6, or don't have it at all, you
should probably upgrade. If you are forced to use 3.2.4, you should
uncomment a couple of lines in hints/linux.sh and restart Configure so
that shared libraries will be disallowed.
Disabling ndbm. This will generate a Whoa There message in Configure.
Read hints/linux.sh for further information.
Operating system name? [linux-android]
Operating system version? [7.1.1]
Installation prefix to use? (~name ok) [/usr/local]
AFS does not seem to be running...
What installation prefix should I use for installing files? (~name ok)
[/usr/local]
Getting the current patchlevel...
Build a threading Perl? [n]
Build Perl for multiplicity? [n]
Use which C compiler? [i686-linux-android-gcc]
Checking for GNU cc in disguise and/or its version number...
"./try": error: only position independent executables (PIE) are supported.
Aborted
Now, how can we feed standard input to your C preprocessor...
Directories to use for library searches?
[/tmp/toolchain-x86/sysroot/usr/lib/../lib /tmp/toolchain-x86/sysroot/usr/lib]
What is the file extension used for shared libraries? [sa]
Make shared library basenames unique? [n]
Hmm. Based on the hints in hints/linux-android.sh,
the recommended value for $d_libname_unique on this machine was "define"!
Keep the recommended value? [y]
Build Perl for SOCKS? [n]
Try to use long doubles if available? [n]
Checking for optional libraries...
What libraries to use? [-lm -lc]
What optimizer/debugger flag should be used? [-O2]
Any additional cc flags?
[-DOVR_DBL_DIG=14 -fPIE --sysroot=/tmp/toolchain-x86/sysroot]
Let me guess what the preprocessor flags are...
Any additional ld flags (NOT including libraries)?
[ --sysroot=/tmp/toolchain-x86/sysroot]
Checking your choice of C compiler and flags for coherency...
I've tried to compile and run the following simple program:
#include
int main() { printf("Ok\n"); return(0); }
I used the command:
i686-linux-android-gcc -o try -O2 -DOVR_DBL_DIG=14 -fPIE --sysroot=/tmp/toolchain-x86/sysroot --sysroot=/tmp/toolchain-x86/sysroot try.c -lm -lc
/home/fabian/Desktop/Testimages/perl-5.22.1/Cross/run-adb-shell ./try
and I got the following output:
"./try": error: only position independent executables (PIE) are supported.
Aborted
The program compiled OK, but exited with status 134.
You have a problem. Shall I abort Configure [y]
Ok. Stopping Configure.
But now the ccflag is set how you can see in the last lines...
Did I miss something?
I am facing the following issue when trying to compile a c program using openssl for android x-86. I set up the environment variables as follows using the following script:
setenv-android.sh
After running the script I have the following environment.
./setenv-android_x86.sh
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
Error: FIPS_SIG does not specify incore module. Please edit this script.
ANDROID_NDK_ROOT: /opt/android-ndk-r9d-x86
ANDROID_ARCH: arch-x86
ANDROID_EABI: x86-4.6
ANDROID_API: android-18
ANDROID_SYSROOT: /opt/android-ndk-r9d-x86/platforms/android-18/arch-x86
ANDROID_TOOLCHAIN: /opt/android-ndk-r9d-x86/toolchains/x86-4.6/prebuilt/darwin-x86_64/bin
FIPS_SIG:
CROSS_COMPILE: i686-linux-android-
ANDROID_DEV: /opt/android-ndk-r9d-x86/platforms/android-18/arch-x86/usr
However when trying to compile with the following command I get the following error:
pwd
/opt/android-ndk-r9d-x86/bin
./i686-linux-android-gcc Test.c -o test -lcrypto
fatal error: openssl/conf.h: No such file or directory
When I locate for the openssl/conf.h I see the file is available in many places:
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk/usr/include/openssl/conf.h
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.9.sdk/usr/include/openssl/conf.h
/data/local/arm/ssl/include/openssl/conf.h
/data/local/ssl/include/openssl/conf.h
/openssl/include/openssl/conf.h
/openssl-1.0.1e/include/openssl/conf.h
/openssl-1.0.1g/include/openssl/conf.h
/opt/local/include/openssl/conf.h
/usr/include/openssl/conf.h
/usr/local/include/openssl/conf.h
/usr/local/ssl/android-14/include/openssl/conf.h
/usr/local/ssl/android-18/include/openssl/conf.h
/usr/local/ssl/android-18-x86/include/openssl/conf.h
/usr/local/ssl/include/openssl/conf.h
I think the proper path is this:
/usr/local/ssl/android-18-x86/include/openssl/conf.h
I tried with the -L option but with no luck.
-L/usr/local/ssl/android-18-x86/include/
Can anybody please explain how to setup the path properly to solve this issue. (finally there is no issue with the C code as it compiles properly with gcc)
You are compiling your code using the Android NDK, which creates a "virtual" compiling environment by placing everything you need to compile for android into the ${ANDROID_SYSROOT} directory.
Those directories you listed are outside that sysroot, and therefore are not available to the build system, hence the errors. You must install OpenSSL for Android and putting the resulting headers and binaries there. You might follow this guide to assist you in that.
This starts off as an Android question but I think becomes a linux/cygwin question.
The Android ndk is shipped with an unsuitable version of awk - definitive report here - so I'm trying to get cygwin to accept that I don't want to use the ndk awk, but to use nawk or gawk instead.
Bearing in mind I know nothing about linux/cygwin, these are my discoveries:
The first part of the question has already been answered here so I know I need to rename the existing awk as awk_ so it isn't picked up (done). And I need to set the cygwin environment variable HOST_AWk to gawk (or nawk - both of which are supplied with cygwin). The easy way to do this (for me) is to set that environment variable in Windows - then when cygwin runs it imports all the environment stuff from Windows.
So I think I know what to do, but the value of HOST_AWK doesn't seem to be picked up when I try to do a build either directly in eclipse (build all) or in cygwin from bash:
Barry#BARRY /cygdrive/c/data/eclipse/camfeeda/jni
$ ndk-build
make: awk: Command not found
Android NDK: Host 'awk' tool is outdated. Please define HOST_AWK to point to Gawk or Nawk !
/cygdrive/c/DATA/eclipse/android/android-ndk-r7/build/core/init.mk:258: *** Android NDK: Aborting. . Stop.
Barry#BARRY /cygdrive/c/data/eclipse/camfeeda/jni
$ printenv HOST_AWK
c:\cygwin\bin\gawk.exe
As you see I have set HOST_AWK to gawk.exe in the correct location, but I've tried:
HOST_AWK=c:\cygwin\bin\gawk.exe
HOST_AWK=c:\cygwin\bin\gawk
HOST_AWK=c:\cygwin\bin\nawk.exe
HOST_AWK=c:\cygwin\bin\nawk
And I've tried using forward slashes in case that was the problem, but I still get the same error :(
I feel as if I am so close, but I can't make the last step. Why won't ndk-build read the environment variable HOST_AWK and do the dratted job?! Can anyone put me out of my misery?
Many thanks
Barry
Edit: I also tried:
HOST_AWK=/cygdrive/c/cygwin/bin/gawk.exe
etc, but no joy.
B.
For me it's just deleting/renaming awk.exe that is shipped with ndk-r7. And they everything works. No need for setting HOST_AWK env variable.