Re: RPi4, www/chromium, FAILED: v8_context_snapshot_generator

From: bob prohaska <>
Date: Fri, 16 Jul 2021 19:30:48 UTC
On Fri, Jul 16, 2021 at 11:31:31AM -0700, Mark Millard wrote:
> On 2021-Jul-16, at 11:11, Mark Millard <marklmi at> wrote:
> It may be that some or all relevant text is after that line,
> unlike my guess. I found on the web:
> FAILED: v8_context_snapshot_generator 
> ../../third_party/llvm-build/Release+Asserts/bin/clang++ -Wl,--fatal-warnings -Wl,--build-id=sha1 -fPIC -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,-z,defs -Wl,--as-needed -fuse-ld=lld -Wl,--icf=all -Wl,--color-diagnostics -flto=thin 
> -Wl,--thinlto-jobs=8 -Wl,--thinlto-cache-dir=thinlto-cache -Wl,--thinlto-cache-policy,cache_size=10\%:cache_size_bytes=10g:cache_size_files=100000 -Wl,--lto-O0 -fwhole-program-vtables -m64 -Werror -Wl,-O2 -Wl,--gc-sections -Wl,--gdb-inde
> x -rdynamic -nostdlib++ --sysroot=../../build/linux/debian_sid_amd64-sysroot -L../../build/linux/debian_sid_amd64-sysroot/usr/local/lib/x86_64-linux-gnu -L../../build/linux/debian_sid_amd64-sysroot/lib/x86_64-linux-gnu -L../../build/linu
> x/debian_sid_amd64-sysroot/usr/lib/x86_64-linux-gnu -fsanitize=cfi-vcall -fsanitize=cfi-icall -pie -Wl,--disable-new-dtags -Wl,--icf=none -L../../build/linux/debian_sid_amd64-sysroot/usr/lib/x86_64-linux-gnu -o "./v8_context_snapshot_gen
> erator" -Wl,--start-group @"./v8_context_snapshot_generator.rsp"  -Wl,--end-group   -ldl -lpthread -lrt -lgmodule-2.0 -lglib-2.0 -lgobject-2.0 -lgthread-2.0 -lnss3 -lnssutil3 -lsmime3 -lplds4 -lplc4 -lnspr4 -lresolv -lgio-2.0 -lexpat -lu
> uid -lX11 -lX11-xcb -lxcb -lXcomposite -lXcursor -lXdamage -lXext -lXfixes -lXi -lXrender -lXtst -lXrandr -lpci -lXss -ldbus-1 -lasound -lm -lz 
> clang: error: unable to execute command: Killed
> clang: error: linker command failed due to signal (use -v to see invocation)
> ninja: build stopped: subcommand failed.
> . . . (more not shown) . . .
> It seems to put related material after the line.

Here's all I get:

FAILED: v8_context_snapshot_generator 
python "../../build/toolchain/" --output="./v8_context_snapshot_generator" -- c++ -fuse-ld=lld -Wl,--build-id=sha1 -fPIC -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,-z,max-page-size=4096 -Wl,--icf=all -Wl,--color-diagnostics -flto=thin -Wl,--thinlto-jobs=2 -Wl,--thinlto-cache-dir=thinlto-cache -Wl,--thinlto-cache-policy,cache_size=10\%:cache_size_bytes=40g:cache_size_files=100000 -Wl,-mllvm,-import-instr-limit=5 -fwhole-program-vtables -Wl,-O2 -Wl,--gc-sections -rdynamic -Wl,--lto-O0 -pie -Wl,--disable-new-dtags -Wl,--icf=none -L/usr/local/lib  -fstack-protector-strong -L/usr/local/lib  -o "./v8_context_snapshot_generator" -Wl,--start-group @"./v8_context_snapshot_generator.rsp"  -Wl,--end-group  -lpthread -lgmodule-2.0 -lglib-2.0 -lgobject-2.0 -lgthread-2.0 -lintl -lnss3 -lsmime3 -lnssutil3 -lplds4 -lplc4 -lnspr4 -ldl -lexecinfo -lkvm -lutil -lrt -ljpeg -lpng16 -lz -lxml2 -lxslt -llzma -lm -lgio-2.0 -lwebpdemux -lwebpmux -lwebp -lfreetype -lexpat -lfontconfig -lharfbuzz-subset -lharfbuzz -lopus -lavcodec -lavformat -lavutil -lopenh264 -lX11 -lXcomposite -lXdamage -lXext -lXfixes -lXrender -lXrandr -lXtst -lxcb -ldrm -lxkbcommon -lgbm -latk-1.0 -latk-bridge-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo -lgtk-3 -lgdk-3 -lcairo-gobject -lgdk_pixbuf-2.0 -lXi -lGL -lpci -lsndio -lsnappy -lcups -latspi -ldbus-1
ld.lld: error: undefined symbol: dav1d_get_cpu_flags_arm
>>> referenced by cpu.c
>>>               thinlto-cache/Thin-922af5.tmp.o:(dav1d_init_cpu)
c++: error: linker command failed with exit code 1 (use -v to see invocation)
ninja: build stopped: subcommand failed.
===> Compilation failed unexpectedly.
Try to set MAKE_JOBS_UNSAFE=yes and rebuild before reporting the failure to

I'll start preparing to put the machine on a public network, though it sounds
like this is a chromium problem, unrelated to FreeBSD.....

Thanks for writing, 

bob prohaska