Forums - android phone has to be rooted?

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android phone has to be rooted?
ranjithbliss
Join Date: 11 May 17
Posts: 3
Posted: Sat, 2017-05-20 06:16
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Hi,

I am new to this group.

I have a basic question.

To run the sample application like calculator, should the device be rooted?

From the documentation Qualcomm/Hexagon_SDK/3.2/docs/calculator_android.html:

adb shell mkdir -p /vendor/bin/
adb push android_Debug/ship/calculator /vendor/bin/
adb shell chmod 777 /vendor/bin/calculator
adb push android_Debug/ship/libcalculator.so /system/lib/

I think without root access,  the files cannot be pushed to /vendor/bin/ or /system/lib.

Sometimes even with the root access those files cannot be pushed.

I tried to specify /data/local/tmp path. but when I run calculator executable I gor below error:

CANNOT LINK EXECUTABLE "/data/local/tmp/calculator": library "libcalculator.so" not found
Aborted (core dumped)
 
Finally I want an yes/no answer for this question:
Is it compulsory to push the files to /vendor/bin/ and /system/lib/ ?
 

 

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Re: android phone has to be rooted?
michael10
Join Date: 27 Nov 17
Posts: 11
Posted: Sat, 2017-12-16 22:48
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Did you ever get an answer or solve your problem?

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Re: android phone has to be rooted?
alu0100948226
Join Date: 12 Mar 19
Posts: 5
Posted: Thu, 2019-03-28 09:43
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To be able to link the shared object you must preload it yourself. to do so use the following command:

LD_PRELOAD=/path/to/libcalculator.so ./executable <option1> <option2> ....

This wont fix all your problems though, you must have signed the shared object, or have a debug signature. And I don't really know if it is reaaly compulsory to push files to those directories. As I understand it it isnt compulsory, But it could lead into other problems.

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