[OE-core] [BUG REPORT] failed to build valgrind on qemuarm

[Andre McCurdy]

On Mon, Jan 18, 2016 at 11:27 PM, Rongqing Li <rongqing.li at windriver.com> wrote:
>
> 2: on qemuarma9
>

The problem seems to be that the machine doesn't support NEON and
Valgrind 3.11 includes a new test case which uses embedded NEON
instructions.

We do already disable a few tests which don't build for all ARM
machines (see "remove-arm-variant-specific.patch"), so maybe the
"sh-mem-random" test should be disabled as well. I'll take a look.

What DEFAULTTUNE does the qemuarma9 machine use?

>
> | arm-wrs-linux-gnueabi-gcc -march=armv7-a -mfloat-abi=softfp  -marm
> -mthumb-interwork
> --sysroot=/work/wr/buildarea/arm/bitbake_build/tmp/sysroots/qemuarma9
> -DHAVE_CONFIG_H -I.
> -I/work/wr/buildarea/arm/bitbake_build/tmp/work/armv7a-vfp-wrs-linux-gnueabi/valgrind/3.11.0-r0/valgrind-3.11.0/memcheck/tests
> -I../..
> -I/work/wr/buildarea/arm/bitbake_build/tmp/work/armv7a-vfp-wrs-linux-gnueabi/valgrind/3.11.0-r0/valgrind-3.11.0
> -I/work/wr/buildarea/arm/bitbake_build/tmp/work/armv7a-vfp-wrs-linux-gnueabi/valgrind/3.11.0-r0/valgrind-3.11.0/include
> -I/work/wr/buildarea/arm/bitbake_build/tmp/work/armv7a-vfp-wrs-linux-gnueabi/valgrind/3.11.0-r0/valgrind-3.11.0/coregrind
> -I../../include
> -I/work/wr/buildarea/arm/bitbake_build/tmp/work/armv7a-vfp-wrs-linux-gnueabi/valgrind/3.11.0-r0/valgrind-3.11.0/VEX/pub
> -I../../VEX/pub -DVGA_arm=1 -DVGO_linux=1 -DVGP_arm_linux=1
> -DVGPV_arm_linux_vanilla=1   -Winline -Wall -Wshadow -Wno-long-long -g
> -fno-stack-protector    -O2 -pipe -g  -fno-omit-frame-pointer
> -fvisibility=default -O0 -c -o sh-mem-random.o
> /work/wr/buildarea/arm/bitbake_build/tmp/work/armv7a-vfp-wrs-linux-gnueabi/valgrind/3.11.0-r0/valgrind-3.11.0/memcheck/tests/sh-mem-random.c
> | {standard input}: Assembler messages:
> | {standard input}:1107: Error: selected processor does not support ARM mode
> `vld1.64 {d7},[r3]'
> | {standard input}:1107: Error: selected processor does not support ARM mode
> `vst1.64 {d7},[r2]'
> | Makefile:2467: recipe for target 'sh-mem-random.o' failed
>
>
> and the codes are below:
>
> 194 #elif defined(__linux__) && defined(__arm__) && !defined(__aarch64__)
> 195             /* On arm32, many compilers generate a 64-bit float move
> 196                using two 32 bit integer registers, which completely
> 197                defeats this test.  Hence force a 64-bit NEON load and
> 198                store.  I guess this will break the build on non-NEON
> 199                capable targets. */
> 200             __asm__ __volatile__ (
> 201                "vld1.64 {d7},[%0] ; vst1.64 {d7},[%1] "
> 202                : : "r"(arr+src), "r"(arr+dst) : "d7","memory"
> 203             );
> 204 #else
>
>
> -Roy
> --
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