Always Fail on Capture Trace: -> getClassLoader() -> <gapit> Main failed about gapid HOT 7 CLOSED

glVertexPointerBounds is actually one of the few commands that we expect to see this message for.
Are there others that don't end in Bounds? The really valuable bit for us would be a crash with stack trace or an assert message.

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Dear Ben-Clayton,

Like what I said, all (more than one thousand) of the gl** functions are failed to be intercepted, all (again, more than one thousand) like below:

03-28 05:43:14.222 465 813 E BufferQueueProducer: [com.****.unihome.UniHomeLauncher] connect: already connected (cur=1 req=1)
03-28 05:43:14.502 506 1291 E bdatd : [UidStat.cpp] setUidCputime# Invalid delta time, uid: 10056
03-28 05:43:14.580 1037 2769 E HsmCoreServiceImpl: onTransact in code is: 103
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glVertexPointerBounds at 0x7532c9b8e4
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glTexCoordPointerBounds at 0x7532c9b8b0
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glNormalPointerBounds at 0x7532c9b860
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glColorPointerBounds at 0x7532c9b77c
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glVertexPointer at 0x7532c9b8e0
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glTranslatex at 0x7532c9b8dc
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glTranslatef at 0x7532c9b734
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glTexParameterxv at 0x7532c9b8d4
03-28 05:43:16.597 7424 7424 E GAPID : installer.cpp:171 : Couldn't intercept function glTexParameterx at 0x7532c9b8cc
...
...
...

from gapid.

Hi @SenonLi,
Were there no Interceptor error: messages generated?

Based on #133, I assume the device you are using is the Huawei Mate 9. Is this correct?
Unfortunately I do not believe we have this device in the office. Are you aware of any other device that exhibit similar behavior?

from gapid.

@SenonLi would you be happy to share the full logcat file with me? There might be something hidden in there that can help me diagnose the issue. My email address is [email protected].

from gapid.

@ben-clayton Thank you so much, Ben!
I have sent you the full logcat file to your email.

One more question, I was trying to trace a 32bit small test program on the phone, however, could not find it using GAPID. Could you please let me know how to select an Action based on PID when trying to do Capture Trace?

Thank you very much!

from gapid.

So the underlying issue that's breaking things here is:

03-29 00:16:38.824  7585  7585 E GAPID   : installer.cpp:171 : Couldn't intercept function glGetActiveUniform at 0x75335daffc
03-29 00:16:38.824  7585  7585 W GAPID   : installer.cpp:115 : Interceptor error: Intercepting function at 0x7531f8b264 failed: End of function reached after 4 byte when rewriting 12 bytes

The interceptor works by patching the start of each driver function to jump to our code. An absolute jump requires a certain number of bytes (8 or 12), which these functions apparently do not have.

I'm going to have to investigate the instructions used by these drivers. I'll contact you privately about trying to solve this.

Could you please let me know how to select an Action based on PID when trying to do Capture Trace?

GAPID currently requires you to launch the application and cannot attach after the process has already started. I'm not sure there's any way to figure out what intent triggered a process to start.

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Duplicate of #355

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