Selected processor does not support ARM mode `dmb st'

[Weilong Chen]

I came accoss this problem when doing a lava test on lava-lng-arndale03:
+ git clone git://git.linaro.org/lng/odp.git
 Cloning into 'odp'...
 + cd odp
 + make
 make -C /lava-lng-arndale03/tests/0_odp-generator-server/odp/platform/linux-generic libs
 make[1]: Entering directory '/lava-lng-arndale03/tests/0_odp-generator-server/odp/platform/linux-generic'
 mkdir -p ./obj
 mkdir -p ./lib
 Compiling source/odp_barrier.c
 cc -c -MD -I../../include -I./include -I./include/api -DODP_DEBUG_PRINT=1 -O3 -pthread -W -Wall -Werror -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wpointer-arith -Wcast-align -Wnested-externs -Wcast-qual -Wformat-nonliteral -Wformat-security -Wundef -Wwrite-strings -o obj/odp_barrier.o source/odp_barrier.c
 /tmp/cc50qrUa.s: Assembler messages:
 /tmp/cc50qrUa.s:28: Error: selected processor does not support ARM mode `dmb st'
 /tmp/cc50qrUa.s:43: Error: selected processor does not support ARM mode `dmb st'
 Makefile:97: recipe for target 'obj/odp_barrier.o' failed
 make[1]: *** [obj/odp_barrier.o] Error 1
 make[1]: Leaving directory '/lava-lng-arndale03/tests/0_odp-generator-server/odp/platform/linux-generic'
 Makefile:37: recipe for target 'lib' failed
 make: *** [lib] Error 2

The test link is:
https://validation.linaro.org/scheduler/job/131068/log_file

[Taras Kondratiuk (taras-kondratiuk)]

Looks like compiler is not configured to armv7a by default.
Try with '-march=armv7-a'

[Weilong Chen (weilong-chen)]

I tried "make -march=armv7-a"
It didn't work, am I right?

The log is:
+ make -march=armv7-a
 make: invalid option -- 'a'
 make: invalid option -- 'c'
 make: invalid option -- '='
 make: invalid option -- 'a'
 make: invalid option -- '7'
 make: invalid option -- '-'
 make: invalid option -- 'a'
https://validation.linaro.org/scheduler/job/133243/log_file

Thanks

[Taras Kondratiuk (taras-kondratiuk)]

You have to pass -march=armv7-a to your compiler instead of make.

[Weilong Chen (weilong-chen)]

Currently OE not support compile odp.
Use /usr/share/odp/odpXXX to do the test