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missing build dependencies in the rust build #19714

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maribu opened this issue Jun 7, 2023 · 3 comments
Closed

missing build dependencies in the rust build #19714

maribu opened this issue Jun 7, 2023 · 3 comments
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Area: build system Area: Build system Area: Rust Area: Rust wrapper Type: bug The issue reports a bug / The PR fixes a bug (including spelling errors)

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@maribu
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maribu commented Jun 7, 2023

Description

preprocessor_successor.h is an auto generated header file included by e.g. auto_init_utils.h. Hence, it must be generated before any C code is processed. Therefore, it is added to BUILDDEPS

Steps to reproduce the issue

Run a rust build with many jobs.

Expected results

The build succeeds, no race conditions in the build process.

Actual results

-- running on worker mobi3 thread 1, build number 1902.
make: Entering directory '/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/examples/rust-hello-world'
make: Leaving directory '/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/examples/rust-hello-world'
make: Entering directory '/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/examples/rust-hello-world'
Building application "hello-world" for "native" with MCU "native".

make[2]: Nothing to be done for 'compile-commands'.
make[3]: Nothing to be done for 'compile-commands'.
make[2]: Nothing to be done for 'compile-commands'.
make[3]: Nothing to be done for 'compile-commands'.
make[3]: Nothing to be done for 'compile-commands'.
make[3]: Nothing to be done for 'compile-commands'.
make[3]: Nothing to be done for 'compile-commands'.
make[3]: Nothing to be done for 'compile-commands'.
   Compiling proc-macro2 v1.0.56
   Compiling unicode-ident v1.0.8
   Compiling quote v1.0.26
   Compiling memchr v2.5.0
   Compiling syn v1.0.109
   Compiling libc v0.2.142
   Compiling glob v0.3.1
   Compiling serde_derive v1.0.160
   Compiling cfg-if v1.0.0
   Compiling minimal-lexical v0.2.1
   Compiling log v0.4.17
   Compiling clang-sys v1.6.1
   Compiling serde v1.0.160
   Compiling libloading v0.7.4
   Compiling semver v1.0.17
   Compiling serde_json v1.0.96
   Compiling regex-syntax v0.7.1
   Compiling nom v7.1.3
   Compiling aho-corasick v1.0.1
   Compiling either v1.8.1
   Compiling syn v2.0.15
   Compiling bindgen v0.64.0
   Compiling which v4.4.0
   Compiling rustc-hash v1.1.0
   Compiling ryu v1.0.13
   Compiling peeking_take_while v0.1.2
   Compiling itoa v1.0.6
   Compiling shlex v1.1.0
   Compiling bitflags v1.3.2
   Compiling lazycell v1.3.0
   Compiling lazy_static v1.4.0
   Compiling autocfg v1.1.0
   Compiling regex v1.8.1
   Compiling rustc_version v0.4.0
   Compiling nb v1.1.0
   Compiling cexpr v0.6.0
   Compiling byteorder v1.4.3
   Compiling heapless v0.7.16
   Compiling nb v0.1.3
   Compiling num-traits v0.2.15
   Compiling void v1.0.2
   Compiling shlex v0.1.1
   Compiling embedded-hal v0.2.7
   Compiling riot-wrappers v0.8.1 (https:/RIOT-OS/rust-riot-wrappers#fbc6cfe8)
   Compiling hash32 v0.2.1
   Compiling c2rust-asm-casts v0.2.0
   Compiling cty v0.2.2
   Compiling stable_deref_trait v1.2.0
   Compiling switch-hal v0.4.0
   Compiling embedded-graphics v0.6.2
   Compiling cstr v0.2.11
   Compiling pin-utils v0.1.0
   Compiling mutex-trait v0.2.0
   Compiling hex v0.4.3
   Compiling bare-metal v1.0.0
   Compiling rust_riotmodules v0.1.0 (/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/sys/rust_riotmodules)
   Compiling c2rust-bitfields-derive v0.2.1
   Compiling c2rust-bitfields v0.3.0
   Compiling riot-sys v0.7.9 (https:/RIOT-OS/rust-riot-sys#b4bd4bde)
error: failed to run custom build command for `riot-sys v0.7.9 (https:/RIOT-OS/rust-riot-sys#b4bd4bde)`

Caused by:
  process didn't exit successfully: `/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/build/target/release/build/riot-sys-9b63ae16468e8507/build-script-build` (exit status: 101)
  --- stdout
  cargo:rerun-if-env-changed=BUILDING_RIOT_RS
  cargo:rerun-if-env-changed=RIOT_CC
  cargo:rerun-if-env-changed=RIOT_CFLAGS
  cargo:rerun-if-env-changed=RIOT_COMPILE_COMMANDS_JSON
  cargo:rerun-if-changed=/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/build/cargo-compile-commands.json
  cargo:rerun-if-env-changed=RIOT_USEMODULE
  cargo:CC=clang
  cargo:CFLAGS=-DDEVELHELP -Werror -Wall -Wextra -pedantic -Og -U_FORTIFY_SOURCE "-std=gnu11" -m32 -fstack-protector-all -ffunction-sections -fdata-sections -DDEBUG_ASSERT_VERBOSE "-DRIOT_APPLICATION=\"hello-world\"" "-DBOARD_NATIVE=\"native\"" "-DRIOT_BOARD=BOARD_NATIVE" "-DCPU_NATIVE=\"native\"" "-DRIOT_CPU=CPU_NATIVE" "-DMCU_NATIVE=\"native\"" "-DRIOT_MCU=MCU_NATIVE" -fwrapv -Wstrict-overflow -fno-common -ffunction-sections -fdata-sections -Wall -Wextra -Wmissing-include-dirs -fno-delete-null-pointer-checks -Wstrict-prototypes -Wold-style-definition "-Wformat=2" -Wformat-overflow -Wformat-truncation "-fmacro-prefix-map=/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/=" -Wcast-align -include /tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/build/riotbuild/riotbuild.h -Wno-unknown-warning-option -DNATIVE_INCLUDES -I/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/boards/native/include -I/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/core/lib/include -I/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/core/include -I/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/drivers/include -I/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/cpu/native/include -I/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/sys/include -DMODULE_AUTO_INIT -DMODULE_BOARD -DMODULE_BOARD_COMMON_INIT -DMODULE_CORE -DMODULE_CORE_IDLE_THREAD -DMODULE_CORE_INIT -DMODULE_CORE_LIB -DMODULE_CORE_MSG -DMODULE_CORE_PANIC -DMODULE_CORE_THREAD -DMODULE_CPU -DMODULE_LIBC -DMODULE_NATIVE_DRIVERS -DMODULE_PERIPH -DMODULE_PERIPH_COMMON -DMODULE_PERIPH_GPIO -DMODULE_PERIPH_GPIO_LINUX -DMODULE_PERIPH_INIT -DMODULE_PERIPH_INIT_GPIO -DMODULE_PERIPH_INIT_GPIO_LINUX -DMODULE_PERIPH_INIT_LED0 -DMODULE_PERIPH_INIT_LED1 -DMODULE_PERIPH_INIT_LED2 -DMODULE_PERIPH_INIT_LED3 -DMODULE_PERIPH_INIT_LED4 -DMODULE_PERIPH_INIT_LED5 -DMODULE_PERIPH_INIT_LED6 -DMODULE_PERIPH_INIT_LED7 -DMODULE_PERIPH_INIT_LEDS -DMODULE_PERIPH_INIT_PM -DMODULE_PERIPH_INIT_UART -DMODULE_PERIPH_PM -DMODULE_PERIPH_UART -DMODULE_PREPROCESSOR -DMODULE_PREPROCESSOR_SUCCESSOR -DMODULE_STDIO_NATIVE -DMODULE_SYS
  cargo:rerun-if-changed=riot-bindgen.h

  --- stderr
  /tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/sys/include/auto_init_utils.h:35:10: fatal error: 'preprocessor_successor.h' file not found
  thread 'main' panicked at 'Unable to generate bindings: ClangDiagnostic("/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/sys/include/auto_init_utils.h:35:10: fatal error: 'preprocessor_successor.h' file not found\n")', /data/riotbuild/.cargo/git/checkouts/rust-riot-sys-d12733b89271907c/b4bd4bd/build.rs:224:10
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
make: *** [/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/makefiles/cargo-targets.inc.mk:53: /tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/build/target/i686-unknown-linux-gnu/release/librust_hello_world.a] Error 101
make: Leaving directory '/tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/examples/rust-hello-world'
cat: /tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/build/test-input-hash.sha1: No such file or directory
cat: /tmp/dwq.0.21595906214010607/3cea9104ba1ac36ffc6676a6b06c190d/build/test-input-hash.sha1: No such file or directory
{"build/": 258840}

Versions

Current master, see https://ci.riot-os.org/details/b083b1ea3ed14081a7ae5f3ac9f38cf4
@maribu maribu added Type: bug The issue reports a bug / The PR fixes a bug (including spelling errors) Area: build system Area: Build system Area: Rust Area: Rust wrapper labels Jun 7, 2023
@kaspar030 kaspar030 mentioned this issue Jun 8, 2023
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@maribu
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maribu commented Jun 8, 2023

This is strange. Makefile target $(CARGO_LIB) depends on $(BUILDDEPS), which in turn depends on $(BUILDDEPS).

Adding

diff --git a/makefiles/cargo-targets.inc.mk b/makefiles/cargo-targets.inc.mk
index 118cb83f7a..24d485be9a 100644
--- a/makefiles/cargo-targets.inc.mk
+++ b/makefiles/cargo-targets.inc.mk
@@ -40,6 +40,10 @@ $(CARGO_COMPILE_COMMANDS): $(BUILDDEPS)
             -e 's/"riscv-none-embed"/"riscv32"/g' \
       | $(LAZYSPONGE) $@
 
+$(info BUILDDEPS=$(BUILDDEPS))
+ifeq (,$(filter %preprocessor_successor.h,$(BUILDDEPS)))
+  $(error BUILDDEPS invalid)
+endif
 
 $(CARGO_LIB): $(RIOTBUILD_CONFIG_HEADER_C) $(BUILDDEPS) $(CARGO_COMPILE_COMMANDS) FORCE
     $(Q)command -v cargo >/dev/null || ($(COLOR_ECHO) \

should blow if $(BUILDDEPS) doesn't include the preprocessor_successor.h as dependency, so it should really be there.

Now I wonder if rather than a dependency issue this is an issue with the CFLAGS being wrong and -I$(BINDIR)/preprocessor not being present.

@maribu
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maribu commented May 28, 2024

@chrysn if I recall correctly this is fixed, right?

@chrysn
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chrysn commented May 28, 2024

Yes. It was fixed by RIOT-OS/rust-riot-sys#36. The cause was that some -I CFLAGS that were not set in all compilation units were dropped based on their order of occurrence in compile-commands.json, which in turn is influenced by the OS's unsorted reporting of files in a directory, which was why this was so hard to debug: If the sequence is good on one system, it stays good and doesn't turn bad, and only when the files are all created in a go, it was random whether or not it would occur.

Thanks for pinging me; I had forgotten about where this was tracked.

@maribu maribu closed this as completed May 29, 2024
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