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#apertus IRC Channel Logs

2021/03/23

Timezone: UTC

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lexano
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rassu_12[m]
<BAndiT1983 "rassu_12: why do you need virtua"> because docker desktop required that
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04:38
Bertl
off to bed now ... have a good one everyone!
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04:38
Bertl
changed nick to: Bertl_zZ
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04:39
rassu_12[m]
uploaded an image: (160KiB) < https://matrix.org/_matrix/media/r0/download/matrix.org/ZIVOOOsmexaZobUlORhvZroU/Screenshot%20(11).png >
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BAndiT1983|away
changed nick to: BAndiT1983
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BAndiT1983
rassu_12[m]: i know that it's required etc., but do you need docker for challenge task?
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06:17
BAndiT1983
a couple of days ago a friend of mine has finally installed linux (manjaro) in parallel to windows, as he was complaining about problems of getting OpenShift and docker running in parallel, one of them wanted Hyper-V and the other required VirtualBox, which collides with Hyper-V, also virtual network switch just killed the network connection etc.
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BAndiT1983
have shown him how to install properly, e.g. partitioning and some tips regarding setting up rootless docker, after a short time received a photo of his desktop with OpenShift up and running, maybe you should also consider to dual-boot to linux instead
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BAndiT1983
but for our tasks no docker is required usually (was added for the convenience in first place), as we use windows less, the build has to be adjusted for it
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BAndiT1983
will install MSVC++ in the evening today, when at my desktop, where windows is present, so i can check what's the trouble with building visualiser
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se6ast1an
good day
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07:42
BAndiT1983
hi
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07:47
se6ast1an
great to see so much activity here :)
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Bertl_zZ
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Bertl
morning folks!
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markusengsner
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11:34
rassu_12[m]
i am not getting what ProcessBytes does, i searched that on internet but got results something related to SSH protocol ,
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rassu_12[m]
uploaded an image: (134KiB) < https://matrix.org/_matrix/media/r0/download/matrix.org/cpxfMUpncxbnWIckKbHrdkFq/Screenshot%20(26).png >
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BAndiT1983
why do you search for that on the internet when the source code is right there?
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BAndiT1983
SSH? on the pic32? that would be a miracle
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11:39
Bertl
dropbear?
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11:41
BAndiT1983
could work
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markusengsner
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11:54
rassu_12[m]
<BAndiT1983 "why do you search for that on th"> sorry, but still i haven't the function of ProcessBytes
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11:55
BAndiT1983
interesting, but i see it actually see it in your screenshot, you just have to look more thoroughly
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BAndiT1983
*but i actually see it
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rassu_12[m]
<BAndiT1983 "interesting, but i see it actual"> can you give me a hint where i can find the function of Processbytes , as i can't find that in any of .h included files..
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BAndiT1983
look at your screenshot, maybe you will get the idea, can't give more hints than that
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markusengsner
BANdiT1983: So I was looking at the utils functions, and I was wondering about the need for declaring them static?
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Bertl
rassu_12[m]: part of the challenge tasks is that you 'figure out things on your own'
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markusengsner
afaict it doesn't do anything more than declaring them as just inline, other than forcing the compiler to generate additional versions of the function when it chooses not to inline them
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BAndiT1983
markusengsner: haven't looked at them for quite some time, can be changed if it's not correct
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Bertl
static inline is like macros and the compiler is free to decide how to handle them
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markusengsner
BAndit1983: I tried just removing 'static' from them, and the only effect was that the executable shrunk by 4kb or so
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BAndiT1983
great! then you have a plan there ;)
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Bertl
I wouldn't do that, I would look at the compiler options first
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Bertl
i.e. 4kb more code usage means that the compiler decides to go for speed/convenience instead of code size
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12:44
BAndiT1983
inline should be sufficient
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12:45
markusengsner
Bertl: I'm mostly confused about what effect `static inline` has compared to just `inline`
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markusengsner
shouldn't just inlining allow the compiler to inline the function too?
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12:46
BAndiT1983
https://www.microchip.com/forums/m922244.aspx
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Bertl
of course 'just' inline allows to inline the function, that's the purpose
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12:48
Bertl
static inline limits the scope to the current unit
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12:49
Bertl
so, if the compiler decides to go for a non inlined version, there might be several copies of those
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12:51
markusengsner
Bertl: yeah that was my thinking, and since the utils functions are called from multiple different units, I thought it would be better to omit `static`
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Bertl
well, depends, in case all functions get inlined, you are left with a dummy
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markusengsner
oh okay now I see, I hadn't considered that
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Bertl
it still might make sense to do that though, depending on the desired compiler options
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Bertl
it also has some implications during include, i.e. 'normal' inline defined functions should complain if included twice
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Bertl
the static inline will not complain as long as the definition is the same :)
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markusengsner
is that an advantage? :)
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Bertl
it can be :)
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BAndiT1983
markusengsner: you can inspect the resulting ELF file with radare2/cutter, there you can see if it placed it correctly
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BAndiT1983
and through X-ref search there one can see where the calls to the function are
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markusengsner
BAndiT1983: I checked a couple of spots now in the ELF file with Cutter
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markusengsner
and I haven't found a single actual inlining
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markusengsner
when `static inline`, it just calls a local version of the function instead
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Bertl
means that with the current options, the compiler sees no reason for inlining the code and if those options are what we want, then removing the static might be a good choice
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18:01
Bertl
off for now ... bbl
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Bertl
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se6ast1an
off for today, good night
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Bertl_oO
nn
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