Bug 258081
| Summary: | opt_platform.h always created empty on kmod build | ||
|---|---|---|---|
| Product: | Base System | Reporter: | Alexander Mishin <mishin> |
| Component: | kern | Assignee: | freebsd-bugs (Nobody) <bugs> |
| Status: | Closed Not A Bug | ||
| Severity: | Affects Only Me | ||
| Priority: | --- | ||
| Version: | 13.0-STABLE | ||
| Hardware: | arm | ||
| OS: | Any | ||
A standalone module build has no idea of the target platform properties and so it cannot make any meaningful definitions for it. If you want to build a module to work with a specific kernel (and its configuration must have all the necessary platform specifications), then either build the module as a part of the kernel build or use KERNBUILDDIR make variable to point to the kernel build. P.S. In general, when you are not sure it's better to ask a question first and then to file a bug. FreeBSD has many forums for all kinds of questions. Thank You |
Running "make depend" in a kernel module sources folder outside of the kernel sources tree makes an empty "./opt_platform.h". I expect it to contain the lines "#define FDT 1" and "#define EFI 1" which are contained in "/usr/obj/arm.armv7/sys/${KERNCONF}/opt_platform.h". My "Makefile": # $FreeBSD$ KMOD=rcrecv SRCS=rcrecv.c SRCS+= \ bus_if.h \ device_if.h \ gpio_if.h \ gpiobus_if.h \ ofw_bus_if.h \ opt_platform.h \ fdt_pinctrl_if.h \ CFLAGS+= -I. .include <bsd.kmod.mk> Maybe it is important: I always mount on my ARM host "/usr/src" for building kernel modules by nfs but I have not mounted "/usr/obj" there. I tried also run "make TARGET_ARCH=armv7 KERNCONF=OPI_PC depend" on amd64 PC (I build world & kernel for my OrangePI PC, on amd64 and with that variables, and "/usr/obj/arm.armv7/sys/${KERNCONF}/opt_platform.h" is exists and is not empty). But the "./opt_platform.h" created empty in this case too. This is an output of the command I run (I don't got what ":>" means): machine -> /usr/src/sys/amd64/include x86 -> /usr/src/sys/x86/include awk -f /usr/src/sys/tools/makeobjops.awk /usr/src/sys/kern/bus_if.m -h awk -f /usr/src/sys/tools/makeobjops.awk /usr/src/sys/kern/device_if.m -h awk -f /usr/src/sys/tools/makeobjops.awk /usr/src/sys/dev/gpio/gpio_if.m -h awk -f /usr/src/sys/tools/makeobjops.awk /usr/src/sys/dev/gpio/gpiobus_if.m -h awk -f /usr/src/sys/tools/makeobjops.awk /usr/src/sys/dev/ofw/ofw_bus_if.m -h :> opt_platform.h awk -f /usr/src/sys/tools/makeobjops.awk /usr/src/sys/dev/fdt/fdt_pinctrl_if.m -h touch opt_global.h Of course I can place a definition of FDT to the code, to the Makefile or even to the "./opt_platform.h" file but I want to make it more platform dependent. Is it a bug or maybe I misunderstand this step of making kmods?