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error[E0512]: cannot transmute #107

Closed
youngday opened this issue Mar 24, 2024 · 7 comments
Closed

error[E0512]: cannot transmute #107

youngday opened this issue Mar 24, 2024 · 7 comments
Labels
bug Something isn't working

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@youngday
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Describe the bug

Compiling zenoh-c v0.10.1-rc (/ /build/_deps/zenohc-build/release)
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
--> / /build/_deps/zenohc-src/src/lib.rs:80:26
|
80 | unsafe { std::mem::transmute::<$src_type, $dst_type>(self) }

To reproduce

when make , at zenoh-c, have an error above.

System info

amd x64 debian12
@youngday youngday added the bug Something isn't working label Mar 24, 2024
@youngday
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Author

youngday commented Mar 24, 2024 •
edited
Loading 

[  2%] Generating release/target/release/libzenohc.so, release/target/release/libzenohc.a
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   Compiling zenoh-config v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling quinn v0.10.2
   Compiling rustls-native-certs v0.7.0
   Compiling nix v0.27.1
   Compiling webpki-roots v0.26.0
   Compiling uuid v1.4.1
   Compiling tokio-rustls v0.25.0
   Compiling utf8parse v0.2.1
   Compiling hashbrown v0.12.3
   Compiling keccak v0.1.4
   Compiling linux-raw-sys v0.4.13
   Compiling zenoh-link-commons v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling os_str_bytes v6.6.1
   Compiling zenoh-macros v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling smallvec v1.11.0
   Compiling static_assertions v1.1.0
   Compiling twox-hash v1.6.3
   Compiling zenoh-link-tcp v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh-link-ws v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh-link-unixsock_stream v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh-link-udp v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh-link-tls v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh-link-quic v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling clap_lex v0.2.4
   Compiling sha3 v0.10.8
   Compiling anstyle-parse v0.2.1
   Compiling rustc_version v0.4.0
   Compiling pkcs1 v0.7.5
   Compiling aes v0.8.3
   Compiling hmac v0.12.1
   Compiling signature v2.1.0
   Compiling atty v0.2.14
   Compiling strsim v0.10.0
   Compiling cbindgen v0.24.5
   Compiling fastrand v2.0.1
   Compiling textwrap v0.16.1
   Compiling termcolor v1.4.1
   Compiling cache-padded v1.3.0
   Compiling anstyle-query v1.0.0
   Compiling colorchoice v1.0.0
   Compiling anstyle v1.0.6
   Compiling array-init v2.1.0
   Compiling git-version-macro v0.3.5
   Compiling ringbuffer-spsc v0.1.9
   Compiling clap v3.2.25
   Compiling anstream v0.6.12
   Compiling tempfile v3.10.1
   Compiling rsa v0.9.2
   Compiling zenoh-crypto v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh-link v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling lz4_flex v0.11.1
   Compiling env_filter v0.1.0
   Compiling toml v0.5.11
   Compiling heck v0.4.1
   Compiling fixedbitset v0.4.2
   Compiling zenoh-plugin-trait v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling zenoh-transport v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
   Compiling petgraph v0.6.4
   Compiling env_logger v0.11.2
   Compiling git-version v0.3.5
   Compiling ordered-float v4.1.1
   Compiling stop-token v0.7.0
   Compiling fs2 v0.4.3
   Compiling vec_map v0.8.2
   Compiling bincode v1.3.3
   Compiling iana-time-zone v0.1.57
   Compiling is-terminal v0.4.9
   Compiling env_logger v0.10.2
   Compiling chrono v0.4.35
   Compiling zenoh-c v0.11.0-dev (/home/youngday/prj-cpp/zenoh-cpp/build/_deps/zenohc-build/release)
   Compiling zenoh-ext v0.11.0-dev (https://github.com/eclipse-zenoh/zenoh.git?branch=main#3a264558)
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> /home/youngday/prj-cpp/zenoh-cpp/build/_deps/zenohc-src/src/lib.rs:86:26
   |
86 |                 unsafe { std::mem::transmute::<$src_type, $dst_type>(self) }
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
  ::: /home/youngday/prj-cpp/zenoh-cpp/build/_deps/zenohc-src/src/get.rs:63:1
   |
63 | impl_guarded_transmute!(ReplyInner, z_owned_reply_t);
   | ---------------------------------------------------- in this macro invocation
   |
   = note: source type: `Option<zenoh::query::Reply>` (1920 bits)
   = note: target type: `get::z_owned_reply_t` (1792 bits)
   = note: this error originates in the macro `impl_guarded_transmute` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0512`.
error: could not compile `zenoh-c` (lib) due to 1 previous error
make[2]: *** [_deps/zenohc-build/CMakeFiles/cargo.dir/build.make:111: _deps/zenohc-build/release/target/release/libzenohc.so] Error 101
make[1]: *** [CMakeFiles/Makefile2:277: _deps/zenohc-build/CMakeFiles/cargo.dir/all] Error 2
make: *** [Makefile:166: all] Error 2
(base) youngday@192:~/prj-cpp/zenoh-cpp/build$ make -j10
[  2%] Generating release/target/release/libzenohc.so, release/target/release/libzenohc.a
[100%] Built target zenohpico
"RUSTFLAGS = $$RUSTFLAGS"
"cargo +stable build --release --manifest-path=/home/youngday/prj-cpp/zenoh-cpp/build/_deps/zenohc-build/release/Cargo.toml --features=logger-autoinit --features=shared-memory"
   Compiling zenoh-c v0.11.0-dev (/home/youngday/prj-cpp/zenoh-cpp/build/_deps/zenohc-build/release)
error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> /home/youngday/prj-cpp/zenoh-cpp/build/_deps/zenohc-src/src/lib.rs:86:26
   |
86 |                 unsafe { std::mem::transmute::<$src_type, $dst_type>(self) }
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
  ::: /home/youngday/prj-cpp/zenoh-cpp/build/_deps/zenohc-src/src/get.rs:63:1
   |
63 | impl_guarded_transmute!(ReplyInner, z_owned_reply_t);
   | ---------------------------------------------------- in this macro invocation
   |
   = note: source type: `Option<zenoh::query::Reply>` (1920 bits)
   = note: target type: `get::z_owned_reply_t` (1792 bits)
   = note: this error originates in the macro `impl_guarded_transmute` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0512`.
error: could not compile `zenoh-c` (lib) due to 1 previous error
make[2]: *** [_deps/zenohc-build/CMakeFiles/cargo.dir/build.make:111: _deps/zenohc-build/release/target/release/libzenohc.so] Error 101
make[1]: *** [CMakeFiles/Makefile2:277: _deps/zenohc-build/CMakeFiles/cargo.dir/all] Error 2
make: *** [Makefile:166: all] Error 2

@Mallets
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Mallets commented Mar 25, 2024

See eclipse-zenoh/zenoh-c#295

@Mallets
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Mallets commented Mar 25, 2024

@youngday I assume are you compiling it with rust 1.77, am I correct?
Due to the latest changes introduced by rust 1.77, zenoh-0.10.10-rc does not compile anymore. Therefore, it is necessary to use a rust version <=1.76.

@youngday
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my compile env:debian 12 x64 ,amd, gcc 12
rustup default 1.76 and 1.75, not passed.
just compile zenoh-c 0.10.1

error[E0512]: cannot transmute between types of different sizes, or dependently-sized types
  --> src/lib.rs:80:26
   |
80 |                 unsafe { std::mem::transmute::<$src_type, $dst_type>(self) }
   |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
  ::: src/get.rs:63:1
   |
63 | impl_guarded_transmute!(ReplyInner, z_owned_reply_t);
   | ---------------------------------------------------- in this macro invocation
   |
   = note: source type: `Option<zenoh::query::Reply>` (1920 bits)
   = note: target type: `get::z_owned_reply_t` (1792 bits)
   = note: this error originates in the macro `impl_guarded_transmute` (in Nightly builds, run with -Z macro-backtrace for more info)

For more information about this error, try `rustc --explain E0512`.
error: could not compile `zenoh-c` (lib) due to 1 previous error
make[2]: *** [CMakeFiles/cargo.dir/build.make:105: /home/youngday/prj-rust/zenoh-c/target/release/libzenohc.so] Error 101
make[1]: *** [CMakeFiles/Makefile2:180: CMakeFiles/cargo.dir/all] Error 2
make: *** [Makefile:146: all] Error 2

@youngday
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test ok ,zenoh-c 's git check point,

Fix alignment and layout for z_owned_reply_t

align issues.

@youngday
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Thanks!, continue zenoh .

@Mallets
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Mallets commented Mar 25, 2024

You can also set the rust version to a specific one via cmake ../build -DZENOH_CARGO_CHANNEL=1.76.0.

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