Help with Understanding Simulator Build Process

[PwnVerse]

Description

Hi, I'm trying to understand the build process of nuttx kernel using the configuration for sim:posix_spawn. I see that the sim architecture has a nuttx-names.in which the linker uses and likely creates the nuttx-names.dat during build process. The symbols I see in this file seem like the linker is trying to redirect some of them to host stdlib whenever available (ex - pthread_sigmask has a custom stdlib implementation at sched/pthread_sigmask.c) but the simulator uses host stdlib's pthread_sigmask (pthread_sigmask@GLIBC_2.32).

There are some functions which get redirected to their custom implementations and some that get redirected towards host stdlib. My question is, when and how is this symbol redirection decided, specifically, how does the linker know which symbols to redirect to custom stdlib and which ones to redirect towards host stdlib?

Verification

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[acassis]

@PwnVerse as Greg pointed to Documentation at https://cwiki.apache.org/confluence/display/NUTTX/NuttX+Simulation
Could you please close this Issue?