Devkit Compile Issue - memfd_create

[sashakiwi]

The downloaded version of libfrida-core.a (inside the Linux 64-bit devkit) does not include any reference to memfd_create. (grep memfd_create libfrida-core.a returns nothing) However, when compiled on our systems, the resulting libfrida-core.a DOES contain references to memfd_create. This version (unlike the downloaded one) fails when trying to compile using it on various Linux operating systems.

libfrida-core.a(closures.c.o): In function open_temp_exec_file_memfd': /home/white/Projects/New/v14.2.18/origin/build/fs-tmp-linux-x86_64/libffi/../../../deps/libffi/src/closures.c:535: undefined reference to memfd_create' collect2: error: ld returned 1 exit status

How is the downloaded version compiled (or on what OS version?) so it doesn't contain this reference? Or, what are we doing wrong?

[mrcino]

I ran into the same problem as you.

I think the version of libfrida-core.a you downloaded was compiled with a higher version of glibc, and the glibc on your machine does not have "memfd_create".

[mrcino]

To be precise, libffi uses ‘memfd_create’