* mksnapshot is built as host binary, but then gets executed under qemu-arm, because for 32bit target we need to run 32bit mksnapshot even when building on x86-64 host
* unfortunately since upgrade to qemu-8 in: https://git.openembedded.org/openembedded-core/commit/?id=fe8125565af07b73f9b29db2188ecb6e884bcc70 the mksnapshot fails to execute with: LD_LIBRARY_PATH=/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/lib.host:/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/lib.target:$LD_LIBRARY_PATH; export LD_LIBRARY_PATH; cd ../tools/v8_gypfiles; mkdir -p /OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/obj.target/v8_snapshot/geni; "/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/v8-qemu-wrapper.sh" "/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/mksnapshot" --turbo_instruction_scheduling "--target_os=linux" "--target_arch=arm" --startup_src "/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/obj.target/v8_snapshot/geni/snapshot.cc" --embedded_variant Default --embedded_src "/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/obj.target/v8_snapshot/geni/embedded.S" --no-native-code-counters # # Fatal process OOM in Failed to reserve virtual memory for CodeRange # /OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/node-v18.16.0/out/Release/v8-qemu-wrapper.sh: line 7: 669880 Trace/breakpoint trap (core dumped) PSEUDO_UNLOAD=1 qemu-arm -r 5.15 -L /OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/recipe-sysroot -E LD_LIBRARY_PATH=/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/recipe-sysroot/usr/lib:/OE/build/oe-core/tmp-glibc/work/cortexa8t2hf-neon-oe-linux-gnueabi/nodejs/18.16.0-r0/recipe-sysroot/lib "$@" It was failing only in some of my builds first, in the end I was able to narrow the difference between the build where it fails and where it doesn't fail to require conf/distro/include/security_flags.inc then GCCPIE = "--enable-default-pie" and lastly this PIE enabled just for nodejs to work around this issue without downgrading qemu-native. * using -strace with qemu doesn't help much, just confirms that the OOM error message is really caused by failed mmap2: --- SIGPROF {si_signo=SIGPROF, si_code=SI_TKILL, si_pid=2908258, si_uid=1026} --- clock_gettime64(CLOCK_MONOTONIC,0x407ef640) = 0 ({tv_sec=20187,tv_nsec=678404286}) rt_sigreturn(0x407efb70) = -1 errno=513 (Successful exit from sigreturn) write(3,0x141e538,28) = 28 write(3,0x141e538,28) = 28 write(3,0x141e538,32) = 32 mmap2(0x0097a000,33554432,PROT_NONE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,-1,0) = -1 errno=12 (Cannot allocate memory) mmap2(0x0097a000,33554432,PROT_NONE,MAP_PRIVATE|MAP_ANONYMOUS|MAP_NORESERVE,-1,0) = -1 errno=12 (Cannot allocate memory) * diffoscope on this 1.7G binary didn't really help as it got killed by OOMK after a while Out of memory: Killed process 1136999 (diffoscope) total-vm:404300108kB, anon-rss:122594688kB, file-rss:512kB, shmem-rss:0kB, UID:1026 pgtables:764240kB oom_score_adj:0 Signed-off-by: Martin Jansa <martin.ja...@gmail.com> --- meta-oe/recipes-devtools/nodejs/nodejs_18.16.0.bb | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/meta-oe/recipes-devtools/nodejs/nodejs_18.16.0.bb b/meta-oe/recipes-devtools/nodejs/nodejs_18.16.0.bb index 06631f27db..3adb51549e 100644 --- a/meta-oe/recipes-devtools/nodejs/nodejs_18.16.0.bb +++ b/meta-oe/recipes-devtools/nodejs/nodejs_18.16.0.bb @@ -79,9 +79,9 @@ PACKAGECONFIG[zlib] = "--shared-zlib,,zlib" # and we need to use the right flags during host compile, # too. EXTRA_OEMAKE = "\ - CC.host='${CC}' \ + CC.host='${CC} -pie -fPIE' \ CFLAGS.host='${CPPFLAGS} ${CFLAGS}' \ - CXX.host='${CXX}' \ + CXX.host='${CXX} -pie -fPIE' \ CXXFLAGS.host='${CPPFLAGS} ${CXXFLAGS}' \ LDFLAGS.host='${LDFLAGS}' \ AR.host='${AR}' \ -- 2.41.0
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