Linaro-android

linaro-android@lists.linaro.org

1072 discussions

by Chris Sparks

Hello, I have been reading the instructions for installing linaro on my android device. I have a Galaxy Tab 3 7" model that I want to re-purpose and before I completely risk bricking my device, I am trying to assess if this would even work. I see references to Versatile Express which I don't have. Can i use linaro to re-purpose my device? Chris Sparks --- This email is free from viruses and malware because avast! Antivirus protection is active. http://www.avast.com

10 years, 11 months

Error in Build - Linaro for Arndale Octa

by Clifton Forlines

Hello: I'm starting an Android peripheral project that is going to require some additions to the OS source. As such, Linaro Android looks like an excellent solution going forward. I'm having trouble getting started with the linaro_android_build_cmds.sh build scrip available at: https://android-build.linaro.org/builds/~linaro-android/arndale-octa-linaro/ When running the script, I hit an error (below) that I'm assuming has something to do with the toolchain, specifically: error: 'replace' is not a member of 'std' I've been unable to find any mention of this error in Linaro builds on-line. Can you provide any insight to help me get started? Thanks in advance for your help, -Clifton Forlines art/dalvikvm/dalvikvm.cc: In function 'int art::InvokeMain(JNIEnv*, char**)': art/dalvikvm/dalvikvm.cc:72:3: error: 'replace' is not a member of 'std' host C++: dex2oat <= art/dex2oat/dex2oat.cc make: *** [out/host/linux-x86/obj/EXECUTABLES/dalvikvm_intermediates/dalvikvm..o] Error 1 make: *** Waiting for unfinished jobs....

10 years, 11 months

Test Result Summary of Linaro Android in Calendar Week 21

by Milosz Wasilewski

Calendar Week 21: Here is test result summary for Linaro Android images on following boards: 1) Samsung Arndale - column Q https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AuNOCeo15fRHdDFaR… 2) TI Panda 4430 - column S https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 3) TI Panda 4460 - column S https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadGVWd… 4) Versatile Express A9 - column S https://docs.google.com/a/linaro.org/spreadsheet/ccc?key=0AkxwyUNxNaAadExQd… Best Regards, Milosz Wasilewski

10 years, 11 months

Linaro Android, full_arndale, not compiling.

by Ricardo jota

Hi Folks, I'm starting a new project, based on android and supported by an Arndale. I’ve been trying to compile android and I’ve haven’t got very far, unfortunately. I was hoping someone could give me a clue as to what I’m doing wrong over here. I'm running ubuntu 13.04 and have successfully compiled stock android (not Linaro) with this environment. Here's what I'm doing: ###Exports used export MANIFEST_REPO=git://android.git.linaro.org/platform/manifest.git export MANIFEST_BRANCH=linaro_android_4.4.2 export TARGET_PRODUCT=full_arndale export MANIFEST_FILENAME=default.xml export REPO_GROUPS="common,arndale" export TARGET_SIMULATOR=false export TOOLCHAIN_TRIPLET=arm-linux-androideabi export TARGET_TOOLS_PREFIX=/home/jotacosta/tactual/linaro_android/prebuilts/gcc/linux-x86/arm/arm-linux-androideabi-4.8-linaro/bin/arm-linux-androideabi- ###repo is already installed. > ./repo init -u ${MANIFEST_REPO} -b ${MANIFEST_BRANCH} -m ${MANIFEST_FILENAME} -g ${REPO_GROUPS} > ./repo sync > make TARGET_PRODUCT=${TARGET_PRODUCT} TARGET_TOOLS_PREFIX=${TARGET_TOOLS_PREFIX} boottarball systemtarball userdatatarball It compiles until it gives the following error: """ make[1]: Leaving directory `/home/jotacosta/tactual/linaro_android/out/target/product/arndale/obj/ffmpeg' Export includes file: frameworks/native/opengl/libs/Android.mk -- out/target/product/arndale/obj/SHARED_LIBRARIES/libGLESv2_intermediates/export_includes Export includes file: external/piglit/tests/util/Android.mk -- out/target/product/arndale/obj/SHARED_LIBRARIES/libpiglitutil_gles2_intermediates/export_includes Export includes file: external/waffle/Android.mk -- out/target/product/arndale/obj/SHARED_LIBRARIES/libwaffle-1_intermediates/export_includes Import includes file: out/target/product/arndale/obj/EXECUTABLES/glslparsertest_gles2_intermediates/import_includes target thumb C: glslparsertest_gles2 <= external/piglit/tests/glslparsertest/glslparsertest.c In file included from external/piglit/tests/util/piglit-util-gl-common.h:32:0, from external/piglit/tests/glslparsertest/glslparsertest.c:36: external/piglit/tests/util/piglit-util.h:32:20: fatal error: config.h: No such file or directory #include "config.h" """ This feels like a rookie mistake, yes, but I can't pinpoint exactly where that mistake is. Any hints would be deeply appreciated. Thank you, Ricardo Jota

10 years, 11 months

Validating WiFi Module with NL80211 framework- Reg

by Shajin AS

Hi all, I'm working with a custom OMAP4460 based platform running Android ICS. Android for this platform is based on TI's 4AI.1.4 Release. Release Notes available at http://omappedia.org/wiki/4AI.1.4_OMAP4_Icecream_Sandwich_Release_Notes. I need to upgrade to Android KitKat on this platform. I have chosen Linaro's Release 14.04 for Pandaboard to be ported to the custom platform. We use a Wireless module with TI's WL1271 core. The Wi-Fi driver provided by the Module vendor was based on NL80211 framework. WiFi with Linaro's KitKat port uses Wireless Extensions (WEXT) framework. I understand that WEXT is an older implementation and NL80211 is more recent. Is there a reason why WiFi on Linaro's KitKat port still uses WEXT framework? Is there any Android KitKat source base that uses NL80211 for WiFi framework? This will help me validate the WiFi functionality on my custom platform. Thanks & Regards Shajin

10 years, 11 months

Review request

by Arthur She

Hi, This is Arthur, LAVA team engineer. I just submitted a patch for manifest.xml http://review.android.git.linaro.org/#/c/11034/ I added piglit related packages and had them built and tested successfully with it. Can someone take a look at it. Thanks, Arthur

10 years, 11 months

pm-qa/heat_cpu.c: Some Issues

by Mohammad Merajul Islam Molla

Hello Amit/Robert/Others, I was looking into the code for heat_cpu.c in pm-qa. I think there are some issues with the current implementation. Please find details below - 1. #define NR_THREAD 3 pid_t thr_id[NR_THREAD]; I think the array thr_id should be dynamically allocated as number of threads depend on number of cpus. However, we can eliminate the need for this array as mentioned below at no 7. 2. There is no error checking for sysconf (...) call (line 83). If this call fails num_cpus will be -1 which is a problem. 3. at line 122, pthread_t *p_thread_ptr = (pthread_t *) malloc( num_cpus * sizeof(pthread_attr_t)); we are allocating space for pthread_t. So sizeof(ptread_t) should be used instead of sizeof(pthread_attr_t). 4. at line 144, SCHED_NORMAL is used. On my Ubuntu 13.04, <sched.h> does not define SCHED_NORMAL. So it gives compile error if ANDROID is defined. heat_cpu.c:145:44: error: ‘SCHED_NORMAL’ undeclared (first use in this function) We can either use SCHED_OTHER (which is equivalent to SCHED_NORMAL) or include <linux/sched.h> 5. at line 168, error message is misleading. This error is related to failure from pthread_create, not during setting affinity. 6. at line 76, the call to gettid results in linking error - heat_cpu.c: In function ‘do_loop’: heat_cpu.c:77:2: warning: implicit declaration of function ‘gettid’ [-Wimplicit-function-declaration] /tmp/ccAhcUGE.o: In function `do_loop': heat_cpu.c:(.text+0x4e): undefined reference to `gettid' There is no libc wrapper for gettid. So I think it should be called as below - #include <sys/syscall.h> thr_id[thread] = syscall(SYS_gettid); With this changes the compilation warning and link error goes away and it works. However, this call can be eliminated as suggested below at no 7. 7. There is a potential race condition between line 171 & 182, despite the synchronization mechanism (mutex & condition variable) used. There is no guaranty that do_loop(...) will execute first and thr_id[thread] = gettid(); will execute before setting affinity as noted from below debug output - setting affinity for : 0 setting affinity for : 0 setting affinity for : 0 setting affinity for : 0 The code is setting affinity for tid 0, which it should not, despite the synchronization code. However, we can eliminate need for thr_id and the associated synchronization if we use pthread_setaffinity_np(...) . Would you care to test the alternative implementation using the patch below (also attached)? -------------------------------------------------------------------- diff --git a/utils/heat_cpu.c b/utils/heat_cpu.c index 90d8a97..236cb1d 100644 --- a/utils/heat_cpu.c +++ b/utils/heat_cpu.c @@ -47,23 +47,12 @@ #include <string.h> #include <math.h> -#define NR_THREAD 3 - int cont = 1; -int cpu_index; long long a = 1, c = 1; float f = M_PI; -pid_t thr_id[NR_THREAD]; int moderate_inst; - -#ifdef ANDROID -int conditionMet; -pthread_cond_t cond = PTHREAD_COND_INITIALIZER; -pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER; -#endif - void *do_loop(void *data) { const long long b = 3; @@ -71,14 +60,6 @@ void *do_loop(void *data) a = 1; c = 1; -#ifdef ANDROID - long int thread = (long int) data; - thr_id[thread] = gettid(); - pthread_mutex_lock(&mutex); - while (!conditionMet) - pthread_cond_wait(&cond, &mutex); - pthread_mutex_unlock(&mutex); -#endif while (cont) { if (!moderate_inst) { @@ -96,9 +77,15 @@ void *do_loop(void *data) int main(int arg_count, char *argv[]) { int ret, i; - int num_cpus = sysconf(_SC_NPROCESSORS_ONLN); + int num_cpus; cpu_set_t cpuset; + num_cpus = sysconf(_SC_NPROCESSORS_ONLN); + if (num_cpus < 0) { + printf("ERROR: sysconf error\n"); + return -1; + } + printf("Num CPUs: %d\n", num_cpus); if (arg_count > 1) { if (!strcmp("moderate", argv[1])) { @@ -120,7 +107,7 @@ int main(int arg_count, char *argv[]) } pthread_t *p_thread_ptr = (pthread_t *) malloc( - num_cpus * sizeof(pthread_attr_t)); + num_cpus * sizeof(pthread_t)); if (!p_thread_ptr) { printf("ERROR: out of memory\n"); @@ -141,7 +128,7 @@ int main(int arg_count, char *argv[]) #endif #else - ret = pthread_attr_setschedpolicy(&p[i], SCHED_NORMAL); + ret = pthread_attr_setschedpolicy(&p[i], SCHED_OTHER); #endif /* for each new object */ CPU_SET(i, &cpuset); @@ -156,7 +143,7 @@ int main(int arg_count, char *argv[]) return ret; } #endif - CPU_CLR(i, &cpuset); + CPU_CLR(i, &cpuset); } @@ -165,29 +152,23 @@ int main(int arg_count, char *argv[]) ret = pthread_create(&p_thread_ptr[i], &p[i], do_loop, (void *)i); if (ret < 0) - printf("Error setting affinity for cpu%d\n", i); + printf("Error creating thread for cpu%d\n", i); #ifdef ANDROID CPU_ZERO(&cpuset); CPU_SET(i, &cpuset); - ret = sched_setaffinity(thr_id[i], sizeof(cpuset), &cpuset); + ret = pthread_setaffinity_np(p_thread_ptr[i], sizeof(cpuset), &cpuset); if (ret) { - printf("Error setting affinity on pthread th_id\n"); + printf("Error setting affinity on pthread\n"); printf("Error: %s\n", strerror(ret)); return ret; } #endif } -#ifdef ANDROID - pthread_mutex_lock(&mutex); - conditionMet = 1; - pthread_cond_broadcast(&cond); - pthread_mutex_unlock(&mutex); -#endif - while (1) sleep(1); + return 0; } -- Thanks, -Meraj

10 years, 11 months

Trinity fuzzer

by $rik＠nth

Hi All, Does Trinity fuzzer is available on Linaro kernel? Can anyone please let me know if it is part of some other git project or where i can get it for Android. -- Thanks & Regards, M.Srikanth Kumar.

10 years, 11 months

Re: [PATCH PMQA] cpuidle_killer: allocate per cpu process array dynamically

by Mohammad Merajul Islam Molla

Hello Sanjay, You are welcome. Earlier I submitted some patches in powedebug and powertop tools. Please feel free to merge if you find any useful. http://lists.linaro.org/pipermail/linaro-dev/2014-April/017117.html http://lists.linaro.org/pipermail/linaro-dev/2014-May/017141.html http://lists.linaro.org/pipermail/linaro-dev/2014-May/017144.html http://lists.linaro.org/pipermail/linaro-dev/2014-May/017146.html -- Thanks, -Meraj Mohammad Merajul Islam Molla (Meraj) Mobile Lab 1, Mobile Development Team Samsung R&D Institute Bangladesh (SRBD) Phone: +880-1754380207 Skype: mmm2177 On Mon, May 12, 2014 at 4:27 PM, Sanjay Singh Rawat <sanjay.rawat(a)linaro.org > wrote: > On Wednesday 07 May 2014 03:34 PM, Mohammad Merajul Islam Molla wrote: > >> Hello Sanjay, >> >> One suggestion - its probably better to precede the output lines with >> cpu no. As currently output from child processes are intermixed as below >> and difficult to co-relate. >> >> jiffies are : 10000 usecs >> found 4 cpu(s) >> duration: 120 secs, #sleep: 1200, delay: 100000 us >> duration: 120 secs, #sleep: 1200, delay: 100000 us >> duration: 120 secs, #sleep: 1200, delay: 100000 us >> duration: 120 secs, #sleep: 1200, delay: 100000 us >> counter value 4072718528 >> test duration: 120.057526 secs >> deviation 0.000479 >> counter value 3914063589 >> test duration: 120.057335 secs >> counter value 4015937716 >> test duration: 120.057430 secs >> deviation 0.000479 >> deviation 0.000478 >> counter value 411037603 >> test duration: 120.062716 secs >> deviation 0.000523 >> > > thanks Meraj, done > >> >> >> >> -- >> Thanks, >> -Meraj >> >> >> On Fri, May 2, 2014 at 11:23 PM, Sanjay Singh Rawat >> <sanjay.rawat(a)linaro.org <mailto:sanjay.rawat@linaro.org>> wrote: >> >> On Wednesday 30 April 2014 02:04 PM, Mohammad Merajul Islam Molla >> wrote: >> >> Hello Sanjay, >> As far I know, if option argument is 0, the parent will wait for >> >> >> Looks like waiting is done if childs exit. I checked for the >> offlined CPU case, if there are no child processes, waitpid returns >> -1. Setting errno as "no child processes" >> >> specified child pid to terminate, its not for immediate return as >> in >> case of WNOHANG. This is probably the intended use of the code >> (author >> will be able to confirm). Changing 0 to WNOHANG macro will >> change the >> meaning of the code. >> Also, from header file - >> #define WNOHANG 0x00000001 >> >> >> sorry i referred wrong document >> >> WNOHANG is defined as 1, not zero. >> Which makes me think of two cases below - >> 1. If the real intended purpose is to not to wait infinitely, >> replacing >> >> [...] >> >> >> >> >> >> > > -- > sanjay >

10 years, 11 months

About USB Mass Storage Support.

by Botao Sun

Hi Vishal, A question about USB mass storage feature on Linaro Android images. I would say there are 2 different ways: 1. Using Android device as a host: In this way, by plugging in a USB mass storage device, a USB stick for example, there should be a pop-up window shows up on screen to say a USB mass storage device has been plugged in, similar as you do it on your PC. The current status is after plugged in the USB stick, some manual procedures need to be done to access the device, as indicated in test case USB Host ( https://wiki.linaro.org/Platform/QA/TestCases/Android#USB_Host), and no any UI notification shows. My question here is that is this an expected behaviour? 2. Using Android device as a client: In this way, by plugging it to a host PC, there should be a notification shows on screen to let user to choose among different options, USB mass storage is one of them. I remember we now only has the ADB debug notification (If USB debugging is enabled in developer options), USB mass storage option never shows. We already have a bug there: https://bugs.launchpad.net/linaro-android/+bug/897549 My question here is do we support this feature? Thanks. Best Regards Botao Sun

10 years, 11 months

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