Date: Wed, 17 Apr 2019 20:52:50 -0400 From: Lee D <embaudarm@gmail.com> To: FreeBSD Hackers <freebsd-hackers@freebsd.org> Subject: What code loads kernel modules at boot? Message-ID: <CANC_bnNog192=sAgw6uu7J_oJMPLGyMa57y-eXNxHv_g-KMvOw@mail.gmail.com>
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A couple of years ago I wrote a FreeBSD bootloader for Zynq (Arm32). It's been working well, but now I need to add the ability to load kernel modules at boot. This is for 11.0.1 (updating to 12 soon, hopefully). Can anyone point me to the code that actually loads a kernel module for arm? I got lost reading the source in /src/sys/boot/common, and can't quite figure out what routine is actually called. I assume I need to parse the sections out of the .ko file and place them carefully in memory, like I do with the kernel image. Also, if you're feeling loquacious, where do I put the darn thing and how do I tell the kernel how to find it (part of the MODINFO stuff I assume)? This is all in the context of loading custom real time clock and I2C drivers so they are available at boot time. Thanks, Lee
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