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Am 07.07.2020 um 02:43 schrieb Andrew Gierth:
> Here is a module that might be of some use when testing these things.
> Compile as usual for a loadable C module and:
>   lua -l stackchk -e 'print(stackchk())'
> should print the size of the stack frame for lua->lua calls in bytes. On
> versions other than 5.4 this should return 0, since previously the C
> stack wasn't used for such calls; on amd64 with clang -O2 I get a value
> of 224.
> I'm curious to know what kind of values people get on other
> compilers/platforms.

Linux db 5.7.0-1-amd64 #1 SMP Debian 5.7.6-1 (2020-06-24) x86_64
gcc (Debian 9.3.0-14) 9.3.0
 => 192

Windows 7 64-bit / MSVC 19.26.28806 for x64 (I hope the flags are right)
 => 480