On 07.10.21 10:11, C Smith wrote:
> Thanks for the insight. I removed the -isystem line, I don't know where
> it came from, I have legacy xeno 2.6 Makefiles. I added a few more paths
> to system headers. I am now getting a lot of redefined symbols errors.
> Here is current attempt to compile: (this is compiled while standing in
> /usr/src/linux/ BTW)
>
> gcc -Wp,-MD,/home/appuser/src/codebase/ecl/modules/.myapp.o.d -nostdinc
> -I./arch/x86/include -I./arch/x86/include/generated -I./include
> -I./include/linux -I/usr/lib/gcc/x86_64-redhat-linux/8/include
> -I./arch/x86/include/uapi -I./arch/x86/include/generated/uapi
> -I./include/uapi -I./include/generated/uapi -include
> ./include/linux/kconfig.h -include ./include/linux/compiler_types.h
> -I/usr/xenomai/include/cobalt -I/usr/include -D__KERNEL__ -Wall -Wundef
> -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common
> -fshort-wchar -Werror-implicit-function-declaration -Wno-format-security
> -std=gnu89 -fno-PIE -mno-sse -mno-mmx -mno-sse2 -mno-3dnow -mno-avx -m64
> -falign-jumps=1 -falign-loops=1 -mno-80387 -mno-fp-ret-in-387
> -mpreferred-stack-boundary=3 -mskip-rax-setup -mtune=generic
> -mno-red-zone -mcmodel=kernel -funit-at-a-time -DCONFIG_AS_CFI=1
^^^^^^^^^^^^^^^
> -DCONFIG_AS_CFI_SIGNAL_FRAME=1 -DCONFIG_AS_CFI_SECTIONS=1
> -DCONFIG_AS_FXSAVEQ=1 -DCONFIG_AS_SSSE3=1 -DCONFIG_AS_CRC32=1
> -DCONFIG_AS_AVX=1 -DCONFIG_AS_AVX2=1 -DCONFIG_AS_AVX512=1
> -DCONFIG_AS_SHA1_NI=1 -DCONFIG_AS_SHA256_NI=1 -pipe -Wno-sign-compare
> -fno-asynchronous-unwind-tables -mindirect-branch=thunk-extern
> -mindirect-branch-register -fno-jump-tables -Iarch/x86/xenomai/include
> -Iinclude/xenomai -fno-delete-null-pointer-checks -Wno-frame-address
> -Wno-format-truncation -Wno-format-overflow -Wno-int-in-bool-context -O2
> --param=allow-store-data-races=0 -Wframe-larger-than=2048
> -fstack-protector-strong -Wno-unused-but-set-variable
> -Wno-unused-const-variable -fno-omit-frame-pointer
> -fno-optimize-sibling-calls -fno-var-tracking-assignments -g -pg
> -mfentry -DCC_USING_FENTRY -Wdeclaration-after-statement
> -Wno-pointer-sign -Wno-stringop-truncation -fno-strict-overflow
> -fno-merge-all-constants -fmerge-constants -fno-stack-check
> -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes
> -Werror=date-time -Werror=incompatible-pointer-types
> -Werror=designated-init -fmacro-prefix-map=./= -fcf-protection=none
> -Wno-packed-not-aligned
> -I/lib/modules/4.19.89xeno3.1-i64x8632/build/include/xenomai
> -I/lib/modules/4.19.89xeno3.1-i64x8632/build/include/xenomai/posix
> -I/home/appuser/src/codebase -I/usr/xenomai/include/trank
> -I/usr/xenomai/include -D__XENO_COMPAT__ -DMODULE
> -DKBUILD_BASENAME='"myapp"' -DKBUILD_MODNAME='"myapp"' -c -o
> /home/appuser/src/codebase/ecl/modules/myapp.o
> /home/appuser/src/codebase/ecl/modules/myapp.c
> In file included from /usr/xenomai/include/trank/trank.h:21,
> from /usr/xenomai/include/trank/native/timer.h:22,
> from /home/appuser/src/codebase/ecl/modules/myapp.c:19:
> /usr/xenomai/include/boilerplate/compiler.h:23: warning: "container_of"
> redefined
> #define container_of(ptr, type, member) \
>
> In file included from ./include/linux/list.h:9,
> from ./include/linux/module.h:9,
> from /home/appuser/src/codebase/ecl/modules/myapp.c:7:
> ./include/linux/kernel.h:1000: note: this is the location of the
^^^^^^^^^^^^^^
Your build configuration is completely messed up, using kernel settings
to compile a userspace program.
You usually just need
gcc -o my-app my-app.c $(xeno-config --skin=posix --clflags --ldflags)
Start from there, then add what you actually need.
Jan
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Siemens AG, T RDA IOT
Corporate Competence Center Embedded Linux
