Develop Reference

Trying to get BGFX to build for Android

We're trying to get BGFX to build for Android, following the guide here: https://github.com/Nodrev/bgfx-android-activity as recommended on the BGFX main site.
However, this repository was last updated 3+ years ago, and since then there have been major revisions to the Android NDK structure, meaning all of the library paths are all wrong. We've managed to make some progress, but keep getting stuck on the same error.
What we've tried so far:
Using various NDK versions from 17 to 25. NDK 21 seems to be the one before the big change in NDK structure but we consistently get an error at some point during the build with each NDK: 'alloca.h' file not found
Using NDK 25, we got various other errors due to incorrect paths, managed to get past those, but this just led us back to the above error.
Posting a message on the BGFX discussion board, no response.
We found a message here that appears to describe the problem we're having but the second solution does not work, with error:
error: use of undeclared identifier 'GL_PARAMETER_BUFFER_ARB' ...GL_CHECK(glBindBuffer(GL_PARAMETER_BUFFER_ARB, 0) );
and the first solution doesn't contain enough information to try to replicate it.
The main issue we're having is that it seems there is a variable sysroot which tells the build process where to look for headers and libraries, this points to --sysroot=$(ANDROID_NDK_ROOT)/platforms/android-32/arch-arm in the build script, which does not exist. Setting it to a platform that does exist, e.g. --sysroot=$(ANDROID_SDK_ROOT)/platforms/android-32/ got us as far as the alloc.h error above.
alloca.h is found in \AppData\Local\Android\Sdk\ndk\25.1.8937393\toolchains\llvm\prebuilt\windows-x86_64\sysroot\usr\include so we tried setting sysroot to $(ANDROID_NDK_X86)/sysroot/usr/
which led to the error:
\AppData\Local\Android\Sdk\ndk\25.1.8937393\toolchains\llvm\prebuilt\windows-x86_64/sysroot/usr//include/linux/types.h:21:10: fatal error: 'asm/types.h' file not found
asm/types.h is found in a few places:
ndk\25.1.8937393\toolchains\llvm\prebuilt\windows-x86_64\sysroot\usr\include\aarch64-linux-android\asm ndk\25.1.8937393\toolchains\llvm\prebuilt\windows-x86_64\sysroot\usr\include\arm-linux-androideabi\asm ndk\25.1.8937393\toolchains\llvm\prebuilt\windows-x86_64\sysroot\usr\include\i686-linux-android\asm
but changing sysroot to point to e.g. --sysroot=$(ANDROID_NDK_ARM)/sysroot/usr/include/arm-linux-androidabi gets us back to the alloca.h error again.
This is the error in full:
process_begin: CreateProcess(NULL, uname, ...) failed.
makefile:6: pipe: No error
C:/ProgramData/chocolatey/lib/make/tools/install/bin/make.exe -R -C .build/projects/gmake-android-arm config=debug
make[1]: Entering directory '.../bgfx/.build/projects/gmake-android-arm'
"==== Building bx (debug) ===="
allocator.cpp
In file included from ../../../../bx/src/allocator.cpp:6:
In file included from ../../../../bx/include/bx/allocator.h:9:
../../../../bx/include/bx/bx.h:9:10: fatal error: 'alloca.h' file not found
#include <alloca.h> // alloca
^~~~~~~~~~
1 error generated.
make[2]: *** [bx.make:441: ../../android-arm/obj/Debug/bx/bx/src/allocator.o] Error 1
make[1]: *** [Makefile:17: bx] Error 2
make[1]: Leaving directory '.../bgfx/.build/projects/gmake-android-arm'
make: *** [makefile:69: android-arm-debug] Error 2
We've run out of ideas at this point, would greatly appreciate some help!

recipe for target 'ninja_wrapper' failed / flex core dumps

First time android builder here. I used to do a lot of roll your own back on FreeBSD in the day. Getting back into geekdom with android.
I am trying to build android-7.0.0_r14 for the Nexus 6 NBD90Z to run under emulation. I plan to eventually build for my actual phone and this config is pretty close. I am building on ubuntu 18.04 LTS which is newer than what the docs recommend. Maybe that is a bit adventurous.
Here is what I get when I run make.
... snip
build/core/base_rules.mk:316: warning: ignoring old commands for target
out/target/product/shamu/system/lib/soundfx/libqcomvoiceprocessing.so'
Starting build with ninja
ninja: Entering directory.'
ninja: warning: multiple rules generate out/target/product/shamu/system/etc/gps.conf. builds involving this target will not be correct; continuing anyway [-w dupbuild=warn]
[ 0% 1/35600] Lex: libaidl-common <= system/tools/aidl/aidl_language_l.ll
FAILED: /bin/bash -c "prebuilts/misc/linux-x86/flex/flex-2.5.39 -oout/host/linux-x86/obj/STATIC_LIBRARIES/libaidl-common_intermediates/aidl_language_l.cpp system/tools/aidl/aidl_language_l.ll"
flex-2.5.39: loadlocale.c:130: _nl_intern_locale_data: Assertion `cnt < (sizeof (_nl_value_type_LC_TIME) / sizeof (_nl_value_type_LC_TIME[0]))' failed.
Aborted (core dumped)
ninja: build stopped: subcommand failed.
build/core/ninja.mk:148: recipe for target 'ninja_wrapper' failed
make: *** [ninja_wrapper] Error 1
A core dump for flex was not produced in spite of the error message given.
out/host/linux-x86/obj/STATIC_LIBRARIES/libaidl-common_intermediates/aidl_language_l.cpp does not exist. That entire folder is empty. It would seem that something is not downloading/copying the aidl_language_l.cpp.
Any ideas on what I might have messed up?
I am still a little confused at the complexity of git/repo/make/ninja/soong/lunch to conduct a build. It is likely that I missed something obvious.
Thanks,
Jason C. Wells

Just replace your make by export LC_ALL=C make or put the export in your .bashrc

After I looked at this a little closer I realized the prebuilt prebuilts/misc/linux-x86/flex/flex-2.5.39 would dump core with no arguments. I created a soft link to /usr/bin/flex. Compilation seems to be proceeding.
I haven't answered why the prebuilt was dumping. My goal is to compile android, not troubleshoot the tools.

I performed Snorky's steps. I deleted my output directory for libaidl-common_intermediates. I deleted my soft link and restored the android tree version of flex. I re-ran make at the top of the local repo. The build proceeded past the error above and stopped at a new error. It appears that Snorky's answer worked.
Doh! I'm new so S.O. didn't give credit for my upvote.

iOS Build failure for CodenameOne

I've built the iOS version of my app about a month or so ago. Then added a few extra messages to the UI, tested with the Android version and now when I rebuild the iOS version it seems to fail. The error log is at: https://s3.amazonaws.com/codenameone-build-response/621a8710-2900-45a3-afdb-e3a30bdb1265-1504680431641-error.txt
At the bottom of this, the only actual failure I see is:
** ARCHIVE FAILED **
The following build commands failed:
CompileC build/Build/Intermediates/ArchiveIntermediates/MyApplication/IntermediateBuildFilesPath/MyApplication.build/Release-iphoneos/MyApplication.build/Objects-normal/arm64/com_codename1_io_websocket_WebSocketNativeImplImpl.o MyApplication-src/com_codename1_io_websocket_WebSocketNativeImplImpl.m normal arm64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
(1 failure)
Failed xcodebuild step
I have updated the CN1Libs a few days ago. Not really sure what about this is actually failing to build.

Notice that the file com_codename1_io_websocket_WebSocketNativeImplImpl.m is mentioned in the final lines which means that's the file that failed. If you search the file for mentions of com_codename1_io_websocket_WebSocketNativeImplImpl.m you will find:
src/com_codename1_io_websocket_WebSocketNativeImplImpl.m -o /var/folders/zh/kb_4hqhn4kg1h0r5dp_6htcm0000gn/T/build7085253492970683151xxx/dist/build/Build/Intermediates/ArchiveIntermediates/MyApplication/IntermediateBuildFilesPath/MyApplication.build/Release-iphoneos/MyApplication.build/Objects-normal/arm64/com_codename1_io_websocket_WebSocketNativeImplImpl.o
/var/folders/zh/kb_4hqhn4kg1h0r5dp_6htcm0000gn/T/build7085253492970683151xxx/dist/MyApplication-src/com_codename1_io_websocket_WebSocketNativeImplImpl.m:23:9: fatal error: 'com_codename1_io_websocket_WebSocket.h' file not found
#import "com_codename1_io_websocket_WebSocket.h"
^
1 error generated.
This might be a bit confusing but it generally means you added the cn1lib for websockets and didn't use it. That's a problem as our VM strips out unused code but the websockets cn1lib needs to include the callback interface which is now stripped away.

Building Android 7 from sources: export_includes and import_includes related error

I encountered the following error when I tried to build Android 7 (QAEP from codeaurora.org):
ninja: error:
'out/target/product/msm8916_64/obj_arm/SHARED_LIBRARIES/
libqct_resampler_intermediates/export_includes', needed by
'out/target/product/msm8916_64/obj_arm/SHARED_LIBRARIES/
libaudioresampler_intermediates/import_in',
missing and no known rule to make it
make: *** [build/core/ninja.mk:149: ninja_wrapper] Error 1
I did a quick find for *qct* and *audioresampler*. The first one returned only a few source files from the vendor wlan driver, but no library (e.g. libqct directory). And the second returned nothing at all.
What does this error mean? Are there missing modules, that are referenced but not included in the manifest?
Any help is appreciated.

Compiling Android from source, "no rule to make target" tbToolCM error

I'm trying to help out a friend of mine by compiling a ROM for the Samsung Galaxy Grand 2 (ms013g).
make: *** No rule to make target
'/home/quiche/cmsource/out/host/linux-x86/bin/dtbToolCM' needed by
'/home/quic/out/target/product/ms013g/dt.img '.
I keep getting this error i cannot fix, i tried the fix described here: CM12 build failed for oneplus one
and i also made sure android_device_qcom_common is in my local_manifest.xml.
Somewere else, someone suggested changing dtbToolCM to dtbTool, which i tried to no avail.

Seems like You need to add suitable kernel project to your local manifest
Downloading of android_kernel_samsung_klte project helped to me (I was building device_samsung_klte)

Please try this to add below to your Device.mk
BOARD_KERNEL_SEPARATED_DT :=true
Please see Android.mk for dtbtool.
Thank you.