Messages in this thread | | | Date | Tue, 18 Apr 2023 16:26:20 +0100 | Subject | Re: [PATCH v2 3/6] docs: qcom: Add qualcomm minidump guide | From | Srinivas Kandagatla <> |
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On 18/04/2023 16:19, Mukesh Ojha wrote: > +@Brian > > On 4/14/2023 4:01 AM, Srinivas Kandagatla wrote: >> >> >> On 22/03/2023 13:30, Mukesh Ojha wrote: >>> +Dump collection >>> +--------------- >>> + >>> +The solution supports extracting the minidump produced either over >>> USB or >>> +stored to an attached storage device. >>> + >>> +By default, dumps are downloaded via USB to the attached x86_64 machine >>> +running PCAT (Qualcomm tool) software. Upon download, we will see >> >> Are these both PCAT and dexter tools public? > > I think, PCAT comes as part of Qcom Package Kit.
yes, this is part of Qualcomm Package Manager.
> > Last time, I checked with @Brian, he was saying the they use PCAT > software tool running on x86_64 machine attached to QCOM device to > get the dump(via USB) out of the device. > > Dexter.exe seems private tool, that only requires if we use storage > (via ufs/emmc) to save minidump on the target device itself and later > use adb to pull out the rawdump partition dump and pass it through > dexter to convert it to same binary blobs which we got directly through > PCAT. > > I don't at least have any way to avoid dexter tool at the moment. > However, i will think if we can develop any script which does the > same. That would be nice!
--srini > > -- Mukesh > >> >> --srini >>> +a set of binary blobs starts with name md_* in PCAT configured >>> directory >>> +in x86_64 machine, so for above example from the client it will be >>> +md_REGION_A.BIN. This binary blob depends on region content to >>> determine >>> +whether it needs external parser support to get the content of the >>> region, >>> +so for simple plain ASCII text we don't need any parsing and the >>> content >>> +can be seen just opening the binary file. >>> + >>> +To collect the dump to attached storage type, one need to write >>> appropriate >>> +value to IMEM register, in that case dumps are collected in rawdump >>> +partition on the target device itself. >>> + >>> +One need to read the entire rawdump partition and pull out content to >>> +save it onto the attached x86_64 machine over USB. Later, this rawdump >>> +can be pass it to another tool dexter.exe(Qualcomm tool) which converts >>> +this into the similar binary blobs which we have got it when >>> download type >>> +was set to USB i.e a set of registered region as blobs and their name >>> +starts with md_*. >>> -- 2.7.4
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