While building the snps_arc700_axs101_defconfig sample configuration, the ARC assembler is missing some option to choose a proper CPU, or the compiler generates code for some other CPU variant: [build 2023-03-16 13:30:45] /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/host/bin/arc-buildroot-linux-gnu-gcc msort.c -c -std=gnu11 -fgnu89-inline -Os -fno- lto -Wall -Wwrite-strings -Wundef -fmerge-all-constants -frounding-math -fno-stack-protector -fno-common -Wstrict-prototypes -Wold-style-definition -fmath-errno -fpie -fexceptions -ftls-m odel=initial-exec -I../include -I/var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/build/stdlib -I/var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/build -I../sysdeps/unix/sysv/linux/arc -I../ sysdeps/arc/nptl -I../sysdeps/unix/sysv/linux/generic/wordsize-32 -I../sysdeps/unix/sysv/linux/generic -I../sysdeps/unix/sysv/linux/include -I../sysdeps/unix/sysv/linux -I../sysdeps/nptl -I../sysdeps/pthread -I../sysdeps/gnu -I../sysdeps/unix/inet -I../sysdeps/unix/sysv -I../sysdeps/unix -I../sysdeps/posix -I../sysdeps/arc/nofpu -I../sysdeps/ieee754/soft-fp -I../sysd eps/arc -I../sysdeps/wordsize-32 -I../sysdeps/ieee754/flt-32 -I../sysdeps/ieee754/dbl-64 -I../sysdeps/ieee754 -I../sysdeps/generic -I.. -I../libio -I. -nostdinc -isystem /var/lib/lamina r/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/host/lib/gcc/arc-buildroot-linux-gnu/10.2.0/include -isystem /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buil droot/output/host/lib/gcc/arc-buildroot-linux-gnu/10.2.0/include-fixed -isystem /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/host/arc-buildroot-linux-gnu/sys root/usr/include -D_LIBC_REENTRANT -include /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/build/ libc-modules.h -DMODULE_NAME=libc -include ../include/libc-symbols.h -DPIC -DTOP_NAMESPACE=glibc -o /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/g libc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/build/stdlib/msort.o -MD -MP -MF /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4 d7a13edfd2fdc57c9d76e1fd6d017fb47550c/build/stdlib/msort.o.dt -MT /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1 fd6d017fb47550c/build/stdlib/msort.o [build 2023-03-16 13:30:46] msort.c: Assembler messages: [build 2023-03-16 13:30:46] msort.c:200: Error: opcode 'dmb' not supported for target arc700 [build 2023-03-16 13:30:46] make[3]: *** [../o-iterator.mk:9: /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d 017fb47550c/build/stdlib/msort.o] Error 1 [build 2023-03-16 13:30:46] make[3]: Leaving directory '/var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/stdlib' [build 2023-03-16 13:30:46] make[2]: *** [Makefile:484: stdlib/subdir_lib] Error 2 [build 2023-03-16 13:30:46] make[2]: Leaving directory '/var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c' [build 2023-03-16 13:30:46] make[1]: *** [Makefile:9: all] Error 2 [build 2023-03-16 13:30:46] make[1]: Leaving directory '/var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/build' [build 2023-03-16 13:30:46] make: *** [package/pkg-generic.mk:293: /var/lib/laminar/run/buildroot-snps_arc700_axs101_defconfig/1/buildroot/output/build/glibc-2.36-81-g4f4d7a13edfd2fdc57c9d76e1fd6d017fb47550c/.stamp_built] Error 2 Full build log at http://toolchain.lug-owl.de/laminar/log/buildroot-snps_arc700_axs101_defconfig/1
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