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future-proof-iot / RIOT-rs

RIOT-rs is an operating system for secure, memory-safe, low-power Internet of Things, written in Rust
Apache License 2.0
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`examples/coap` (liboscore) on armv6m CI build failure on CI #418

Open kaspar030 opened 1 week ago

kaspar030 commented 1 week ago

Summary


error: linking with `rust-lld` failed: exit status: 1
  |
  = note: LC_ALL="C" PATH="/home/runner/.rustup/toolchains/nightly-2024-05-20-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/home/runner/.cargo/bin:/opt/hostedtoolcache/sccache/0.8.1/x64:/snap/bin:/home/runner/.local/bin:/opt/pipx_bin:/home/runner/.cargo/bin:/home/runner/.config/composer/vendor/bin:/usr/local/.ghcup/bin:/home/runner/.dotnet/tools:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin" VSLANG="1033" "rust-lld" "-flavor" "gnu" "/tmp/rustcTxUJH8/symbols.o" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/deps/coap-1a5ba26ce4603683.coap.980900a94a691917-cgu.0.rcgu.o" "--as-needed" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/deps" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/release/deps" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/defmt-80592f337d3d523b/out" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/liboscore-1869f3cbdcc9cefc/out" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/cortex-m-15f9f17cccca1b61/out" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/riot-rs-rt-40131ddd18c2793d/out" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/cortex-m-rt-cf61485e44677a0d/out" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/rp2040-7fe733d862f4f47d/out" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/embassy-rp-30e866bf5011cef2/out" "-L" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/build/rp-pac-57c39bb19e30139e/out" "-L" "/home/runner/.rustup/toolchains/nightly-2024-05-20-x86_64-unknown-linux-gnu/lib/rustlib/thumbv6m-none-eabi/lib" "-Bstatic" "/tmp/rustcTxUJH8/libliboscore-c1002fd4db71cefd.rlib" "/tmp/rustcTxUJH8/libcortex_m-9c72b8b9f3b7a158.rlib" "/home/runner/.rustup/toolchains/nightly-2024-05-20-x86_64-unknown-linux-gnu/lib/rustlib/thumbv6m-none-eabi/lib/libcompiler_builtins-9573e01946a4d685.rlib" "-Bdynamic" "--eh-frame-hdr" "-z" "noexecstack" "-L" "/home/runner/.rustup/toolchains/nightly-2024-05-20-x86_64-unknown-linux-gnu/lib/rustlib/thumbv6m-none-eabi/lib" "-o" "/home/runner/work/RIOT-rs/RIOT-rs/examples/coap/../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/deps/coap-1a5ba26ce4603683" "--gc-sections" "--nmagic" "--no-eh-frame-hdr" "-Tlinkme.x" "-Tlink.x" "-Tdevice.x" "-Tisr_stack.x" "-Tlink-rp.x" "-Tdefmt.x"
  = note: rust-lld: error: undefined symbol: __gnu_thumb1_case_uqi
          >>> referenced by oscore_message.c:52 (c-src/oscore_message.c:52)
          >>>               905f1f7c3b7e961f-oscore_message.o:(get_option_behaviour) in archive /tmp/rustcTxUJH8/libliboscore-c1002fd4db71cefd.rlib

warning: `coap` (bin "coap") generated 6 warnings
error: could not compile `coap` (bin "coap") due to 1 previous error; 6 warnings emitted
FAILED: build/bin/rpi-pico/coap/coap.elf 
cd examples/coap && OPENOCD_ARGS="-f interface/cmsis-dap.cfg -f target/rp2040.cfg" SCRIPTS=../../scripts CONFIG_BOARD=rpi-pico CARGO_BUILD_TARGET=thumbv6m-none-eabi CARGO_TARGET_THUMBV6M_NONE_EABI_RUNNER='probe-rs run --protocol=swd --chip RP2040' CARGO_TARGET_THUMBV6M_NONE_EABI_RUSTFLAGS="-Clink-arg=--nmagic -Clink-arg=--no-eh-frame-hdr --cfg builder=\"rpi-pico\" --cfg context=\"rpi-pico\" --cfg context=\"riot-rs\" --cfg context=\"rp\" --cfg context=\"rp2040\" -Clink-arg=-Tlinkme.x -Clink-arg=-Tlink.x -Clink-arg=-Tdevice.x -Clink-arg=-Tisr_stack.x --cfg context=\"cortex-m\" --cfg armv6m -Clink-arg=-Tlink-rp.x -Clink-arg=-Tdefmt.x --cfg capability=\"hw/usb-device-port\" -Cembed-bitcode=yes -Clto=fat -Ccodegen-units=1" CARGO_TARGET_DIR=../../build/bin/rpi-pico/coap/cargo RUSTC_WRAPPER="" DEFMT_LOG=info, CONFIG_ISR_STACKSIZE=16384 cargo  build --release --features=riot-rs-boards/rpi-pico,riot-rs/debug-console,riot-rs/defmt,riot-rs/executor-interrupt,riot-rs/hwrng,riot-rs/random,riot-rs/usb-ethernet && cp ../../build/bin/rpi-pico/coap/cargo/thumbv6m-none-eabi/release/coap ../../build/bin/rpi-pico/coap/coap.elf
kaspar030 commented 1 week ago

This was the failing CI run: https://github.com/future-proof-iot/RIOT-rs/actions/runs/10881859932/job/30192896887?pr=413

chrysn commented 1 week ago

A quick (or quack?) duck duck go run did not come up with full solutions. Potential workarounds are setting -fno-builtin-function or another optimization level, but those do not seem to address the root cause. Another avenue to check is whether we're building with GCC rather than clang for some reason -- it'd make sense to use clang given we're later also linking with it (maybe versions mismatch?).