Subxt Metadata: `#[no_std]` compatibility #1401

tadeohepperle · 2024-01-26T14:41:31Z

Related to: #159 and #1394

This PR aims to make subxt-metadata compatible with #[no_std] environments.
It is a first step towards the subxt-core crate that has to rely on subxt-metadata.

The CI pipeline now features a test where we build a small no_std binary, that aborts if any expectations fail.

jsdw · 2024-02-01T15:59:15Z

subxt/Cargo.toml

-    "jsonrpsee?/async-client",
-    "jsonrpsee?/client-ws-transport-native-tls",
-    "subxt-lightclient?/native",
-    "tokio-util"
-]
+native = ["jsonrpsee?/async-client", "jsonrpsee?/client-ws-transport-native-tls", "subxt-lightclient?/native", "tokio-util"]

 # Enable this for web/wasm builds.
 # Exactly 1 of "web" and "native" is expected.
-web = [
-    "jsonrpsee?/async-wasm-client",
-    "jsonrpsee?/client-web-transport",
-    "getrandom/js",
-    "subxt-lightclient?/web",
-    "subxt-macro/web",
-    "instant/wasm-bindgen"
-]
+web = ["jsonrpsee?/async-wasm-client", "jsonrpsee?/client-web-transport", "getrandom/js", "subxt-lightclient?/web", "subxt-macro/web", "instant/wasm-bindgen"]


formatting nit; to me the separate line per item feels cleaner :)

jsdw · 2024-02-01T16:06:00Z

metadata/src/prelude.rs

+#[cfg(not(feature = "std"))]
+extern crate alloc;


I think you can just add extern crate alloc to the top of lib.rs and no need to have it behind a feature flag. Then, you can just always point to the alloc and core versions of things directly as needed and avoid the need for this prelude entirely?

(Side note: polkadot-sdk has a similar prelude and also plans to remove it in favour of just pointing at alloc/core things instead where needed. I think it's generally a bit nicer to just avoid importing from std entirely like this rather than use features etc)

Other side note: the annoying time when you cant just slap an extern crate alloc at the root of the library is when you're in a macro generating code. Then, you don't know if the library your macro is spitting code out into has used extern crate alloc or not, and then a nice approach is to pull imports from some known library (eg subxt macro would pull imports from subxt) to avoid needing an std feature flag or whatever)

jsdw · 2024-02-01T16:09:16Z

metadata/src/from_into/mod.rs

+#[cfg(feature = "std")]
+impl std::error::Error for TryFromError {}


Annoyingly, this is, I think, the only reason that you actually need an "std" feature flag at all for this crate (same is true for some of the scale-* libraries too). Can't wait for Error trait in no-std; then a bunch of crates can just be no-std by default without any feature flag!

yupp, the new error trait looked quite weird in Rust but indeed would be awesome with core::Error :)

jsdw · 2024-02-01T16:09:49Z

metadata/src/from_into/v14.rs

-                "runtime".to_string(),
-                "generic".to_string(),
-                "UncheckedExtrinsic".to_string(),
+                "primitives".to_owned(),


There is an alloc::string::ToString you can import btw :)

jsdw · 2024-02-01T16:11:38Z

metadata/src/from_into/v14.rs

+            // Note:  using the `format!` macro like in `let path = format!("{}Error", pallet.name);`
+            // leads to linker errors about extern function `_Unwind_Resume` not being defined.


Strange; this isn't expected! Not a big deal but the alloc::format! macro should work fine here so I'd be keen to understand this :)

I tried to understand this but just could not. When I use alloc::format!("{}Error", pallet.name) the crate on itself compiles fine with cargo check --no-default-features. But when actually running it in the no-std context of the no-std-tests crate, the linker fails. This is the full error:

[tadeo@tadeo no-std-tests]$ cargo run warning: /home/tadeo/code/subxt2/metadata/Cargo.toml: unused manifest key: dependencies.codec.package Compiling subxt-metadata v0.34.0 (/home/tadeo/code/subxt2/metadata) Compiling subxt-core-no-std-tests v0.0.0 (/home/tadeo/code/subxt2/testing/no-std-tests) error: linking with `cc` failed: exit status: 1 | = note: LC_ALL="C" PATH="/home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/bin:/home/tadeo/binaries/binaryen-version_114/bin/:/home/tadeo/.cargo/bin:/home/tadeo/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/bin:/usr/lib/emscripten:/var/lib/flatpak/exports/bin:/usr/lib/jvm/default/bin:/usr/bin/site_perl:/usr/bin/vendor_perl:/usr/bin/core_perl://home/tadeo/software/clion-2023.1.1/bin://home/tadeo/software/RustRover-232.9921.62/bin://home/tadeo/software://home/tadeo/binaries://home/tadeo/binaries/binaryen-version_114/bin://home/tadeo/tadeo/jai/bin://home/tadeo/software/clion-2023.1.1/bin://home/tadeo/software/RustRover-232.9921.62/bin://home/tadeo/software://home/tadeo/binaries://home/tadeo/binaries/binaryen-version_114/bin://home/tadeo/tadeo/jai/bin://home/tadeo/software/clion-2023.1.1/bin://home/tadeo/software/RustRover-232.9921.62/bin://home/tadeo/software://home/tadeo/binaries://home/tadeo/binaries/binaryen-version_114/bin://home/tadeo/tadeo/jai/bin://home/tadeo/software/clion-2023.1.1/bin://home/tadeo/software/RustRover-232.9921.62/bin://home/tadeo/software://home/tadeo/binaries://home/tadeo/binaries/binaryen-version_114/bin://home/tadeo/tadeo/jai/bin" VSLANG="1033" "cc" "-m64" "/tmp/rustcp0Q3ax/symbols.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.103d7shcucyldk1g.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.134jxfsp5r7fpsi4.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.15wugjomekc8u9cd.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.178ff35gl51k9jn6.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.1jqpxfobqlnn8dob.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.1khbisjscn1p6t4n.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.1s6jde34ai0c04oa.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.1sfwv0smmwal94uv.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.1yqju8l0gxt8jp4h.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.22sbasemurmw45jc.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.23vjmkzrwirghvh5.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.29jz3hhor6eyhjgo.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.2e8pm24wjwi8pqnb.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.2eas55mtom89jlpi.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.2g758ypgh7ai9z2d.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.2hlg20o9a8r26tny.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.33oo3s3e7xphmlkm.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.34lm33xs8rpm0f6m.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.39d3e7b2uh6hr0m6.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.39uaa6effdb5z6it.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3dvsizvfqr3wxugi.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3n2r7voz6tr59iem.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3n5vq0xmgqov6qex.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3rb54tsaelnlzp3m.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3rgifcfdkpv1ee4e.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3vd9icfw49rg4xc7.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3vlp1daoj4zytiru.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3wbr0ej039s27x53.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3wsxam7zeczjhu47.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3x65b4y4tgm16nw0.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.3z6qwpbs3u5307w2.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.48lgsnngb8wmhfwn.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4a6gn4zz3e3nsy2p.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4adnto81w9ywcza7.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4b5pmus4hc1u5gx5.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4d795spuxyilox3m.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4exap4y2iot01wrr.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4jc6xztur1jbid8p.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4lcqqww4qtfg47cu.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4svmi0pbwo8m12ww.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4v0rq98kzpd7g0zn.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4vp76ust6qq42pds.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4vz95k3cvgfx132b.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4yaei9hul0k9jvk7.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4zzcigv6wroyicrg.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.50xpqhd15ijd73p6.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.51fi6z0od92rlk20.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.54bpxaa0km7juimd.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.59klo2yrskf6m1f5.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.5abx5mf18w95g7c5.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.5bqzfqvsjx3pno3e.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.5g1m8r2w01p7f6b.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.hmrcr4vtok8xv11.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.iqsert8edir48bn.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.ji0f1ji5xs2c30w.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.jnkpcgsrytzhe0w.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.jwfmp58jpysnbw0.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.pgpbdv4u5zly0z6.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.uyjzkjdkpi41f9x.rcgu.o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44.4euzgjsu130ppiyb.rcgu.o" "-Wl,--as-needed" "-L" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps" "-L" "/home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-Wl,-Bstatic" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libsubxt_metadata-51d9f1437669e61a.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libsp_core_hashing-b92301fca1f18fe4.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libsha2-fc2ced99413ea5a3.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libcpufeatures-127b28b7f44f8f73.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libsha3-30102a3273cf6aa8.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libkeccak-b1a57eb5615ae5dd.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libtwox_hash-1b6d84b001e138c9.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libstatic_assertions-76e5be1f276ce5ad.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libblake2b_simd-3a0804c8f03d203f.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libconstant_time_eq-9879df55f4488384.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libarrayref-0a9b0146144627df.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libdigest-824630e7c7967625.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libblock_buffer-25e7908af0286f36.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libcrypto_common-d2724c415a8f25fd.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libgeneric_array-5752b1ffb1411b67.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libtypenum-a84ff3aee3fcd5b8.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libbyteorder-fd4dfae9638f420b.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libhashbrown-587c5fc643045699.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libahash-8f8b55be1f83bb29.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libonce_cell-cc3cb20337a1a354.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libzerocopy-d70ac5a9e7e5bf2b.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/liballocator_api2-f38c7224acdc551b.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libframe_metadata-b6624e76cd6133b1.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libscale_info-ac66d96ac73e377a.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libcfg_if-a6cd404a8612f704.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/liblibc-66190e536753d214.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libparity_scale_codec-5bfe95cae8bb589e.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libarrayvec-b7f808d3db61b112.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/libbyte_slice_cast-3824ae5dc231d397.rlib" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/liblibc_alloc-986027e607c85d37.rlib" "/home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3bf59988464e229a.rlib" "/home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/librustc_std_workspace_core-9686387289eaa322.rlib" "/home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcore-632ae0f28c5e55ff.rlib" "/home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/libcompiler_builtins-8ebeba8f78436673.rlib" "-Wl,-Bdynamic" "-lc" "-lm" "-lrt" "-lpthread" "-Wl,--eh-frame-hdr" "-Wl,-z,noexecstack" "-L" "/home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib" "-o" "/home/tadeo/code/subxt2/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-d06243bfbe399a44" "-Wl,--gc-sections" "-pie" "-Wl,-z,relro,-z,now" "-nodefaultlibs" = note: /usr/bin/ld: /home/tadeo/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/x86_64-unknown-linux-gnu/lib/liballoc-3bf59988464e229a.rlib(alloc-3bf59988464e229a.alloc.9e8bbef5278c9f16-cgu.0.rcgu.o): in function `alloc::fmt::format::format_inner': /rustc/e51e98dde6a60637b6a71b8105245b629ac3fe77/library/alloc/src/alloc.rs:(.text._ZN5alloc3fmt6format12format_inner17hcb21963db8ce8921E+0x18a): undefined reference to `_Unwind_Resume' collect2: error: ld returned 1 exit status = note: some `extern` functions couldn't be found; some native libraries may need to be installed or have their path specified = note: use the `-l` flag to specify native libraries to link = note: use the `cargo:rustc-link-lib` directive to specify the native libraries to link with Cargo (see https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-libkindname) error: could not compile `subxt-core-no-std-tests` (bin "subxt-core-no-std-tests") due to 1 previous error

So I tried running this no-std-tests on my M1 mac with cargo +nightly run and it blew up hideously for me (error below) even without the format thing!

A way I've tested no-std before it to try compiling for a certain architecture that doesn't support std. It's a bit less good in that it doesn't then also test any code, but worked pretty well.

I wonder what needs changing to make this example compile on my mac! I'm a little scared by un-understandable errors :D

(my error:)

error: linking with `cc` failed: exit status: 1 | = note: env -u IPHONEOS_DEPLOYMENT_TARGET -u TVOS_DEPLOYMENT_TARGET LC_ALL="C" PATH="/Users/james/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/bin:/opt/homebrew/opt/llvm/bin:/Users/james/bin:/opt/homebrew/bin:/opt/homebrew/sbin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/Library/Apple/usr/bin:/Users/james/.cargo/bin" VSLANG="1033" ZERO_AR_DATE="1" "cc" "-arch" "arm64" "/var/folders/w9/qpj02kr93657cz711ppx0t000000gn/T/rustc87T3UO/symbols.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.15d5c1azm5qs75er.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.18o25cv5mh1czzjv.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.1bgxi20o8beedxh9.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.1m7v5cg51x1p7t79.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.1mdjt5lke7rk419d.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.1v8ak6ohszt9il8x.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.1v9sz25zdztrk2hg.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.20lu86g86pae7v1.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.269mpyibt1n9z2i8.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.26gmy4iee7clpnjg.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2827u6krwnwjtvmo.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.28terp055wptt9us.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2gjo3dujmmxwsynl.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2hdy6vweutivgntb.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2ij89yj2b9cfmh0k.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2kxijmagjgn5c651.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2l9spa5avf7kavpj.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2mp073awr9qou2fb.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.2xjmwo260sodaqiq.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.31qn6lw1n4lpjdve.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.347ir8fl8lxog3w6.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.34ay7fxhwl65bj7v.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3g07tcecbxwnnq15.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3ggonenpgi5q0rf7.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3hy4l7kks4k4namn.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3mopnmoc36199hoe.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3mwmtcsm84pap21c.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3pxzeifl0mb14zss.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3qm0plxewj6nsfhf.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3qw0ledh0ykcy9u6.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3sx8ru8t9n82j95.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3t69n7kzsmq96tw3.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.3wrm7uvmrqxraehz.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.400crr6k9d61fu17.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.40vv1ehx1u9exf8h.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.419xohj6in5i57zm.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.49kcb06tsafvm0db.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.49o2xnetxigqdpro.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.4h4ig9h9alzumjiu.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.4l56t28e7lpv17zl.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.4l6ylrtnyepjcwz3.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.4lvkbyvrpemqogh6.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.4w4f3riwmsudy1je.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.4xkclc8ecezl0k83.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.51jptb7x34zdfqf2.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.52x4vlfiymy8pwzd.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.55rg619tv9lf7277.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.5cbdvd0r51grlge5.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.5cfwus2ubakw9ax4.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.7gevje2ejveviaa.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.caeimgud3je6u6x.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.cg62d0ulxjdhpt3.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.er7b56c56du2olw.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.f5h5r5p91v2k9ni.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.fe25tv2z76lodxh.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.gt1xdawrq4l7qvw.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.jv85tnelye4bgri.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.xo8z24wgj0cg9av.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.zq1xrzayduo33qg.rcgu.o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b.1t8ag4zloyspfmmk.rcgu.o" "-L" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps" "-L" "/Users/james/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/lib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libsubxt_metadata-8e248289f930cb3c.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libsp_core_hashing-f0c25e154b5c4277.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libsha2-cb2ce43e4b8e194a.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libsha3-5838d6073efb5c3e.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libkeccak-d2d65997e5888b81.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libtwox_hash-857443a2d443ea8b.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libstatic_assertions-9023d874dd538a80.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libblake2b_simd-9fb389da054224a0.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libconstant_time_eq-29dc5e34c80a75b2.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libarrayref-9b1fb0b52a86eb41.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libdigest-4c52f81b6eec5fb1.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libblock_buffer-ec353a40d52c9037.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libcrypto_common-57844e855bcb6cd4.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libgeneric_array-b1f0fee6a20334f9.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libtypenum-775d0f072d4f4abd.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libbyteorder-0820adf1e7c48840.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libhashbrown-5244040c47fd6a4a.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libahash-a7a7d37f197f75c4.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libonce_cell-224b04cb628f70ea.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libzerocopy-c44aef1ea18b0c6c.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/liballocator_api2-ca7226a82670e6c8.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libframe_metadata-e1923b9d96c4e0ee.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libscale_info-799db87831817bb0.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libcfg_if-a70192628636786c.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/liblibc-8cc6a15d6487055d.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libparity_scale_codec-39751d065c7b75ba.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libarrayvec-dff866a194c19e5e.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/libbyte_slice_cast-8fd10abbb6202346.rlib" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/liblibc_alloc-8e6c22beab38a9a5.rlib" "/Users/james/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/lib/liballoc-fce2a9bd028a2944.rlib" "/Users/james/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/lib/librustc_std_workspace_core-e5afe4e689972eee.rlib" "/Users/james/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/lib/libcore-113e29613e2cc3c4.rlib" "/Users/james/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/lib/libcompiler_builtins-0faa98e433ca4c9a.rlib" "-liconv" "-L" "/Users/james/.rustup/toolchains/nightly-aarch64-apple-darwin/lib/rustlib/aarch64-apple-darwin/lib" "-o" "/Users/james/Work/subxt/testing/no-std-tests/target/debug/deps/subxt_core_no_std_tests-c9e698994923ea6b" "-Wl,-dead_strip" "-nodefaultlibs" = note: Undefined symbols for architecture arm64: "_memcmp", referenced from: _$LT$u8$u20$as$u20$core..slice..cmp..SliceOrd$GT$::compare::h2bc851d9c6b79f93 in libscale_info-799db87831817bb0.rlib(scale_info-799db87831817bb0.scale_info.bfaba07d6ed144ac-cgu.08.rcgu.o) _$LT$$u5b$A$u5d$$u20$as$u20$core..slice..cmp..SlicePartialEq$LT$B$GT$$GT$::equal::hb5134437d2fec988 in libscale_info-799db87831817bb0.rlib(scale_info-799db87831817bb0.scale_info.bfaba07d6ed144ac-cgu.08.rcgu.o) "_memmove", referenced from: core::slice::sort::merge_sort::RunVec$LT$RunAllocF$C$RunDeallocF$GT$::remove::he4ebdd000273eb8e in subxt_core_no_std_tests-c9e698994923ea6b.52x4vlfiymy8pwzd.rcgu.o alloc::collections::btree::node::BalancingContext$LT$K$C$V$GT$::bulk_steal_left::h7a76fcbed2e55b36 in libframe_metadata-e1923b9d96c4e0ee.rlib(frame_metadata-e1923b9d96c4e0ee.frame_metadata.41e071e3dfd6810e-cgu.03.rcgu.o) hashbrown::raw::RawTableInner::prepare_rehash_in_place::h1c0f596ae44a7f5b in libsubxt_metadata-8e248289f930cb3c.rlib(subxt_metadata-8e248289f930cb3c.2vd0twcydxhja38y.rcgu.o) "_memset", referenced from: _$LT$i8$u20$as$u20$alloc..vec..spec_from_elem..SpecFromElem$GT$::from_elem::ha4d40836b07f28c1 in subxt_core_no_std_tests-c9e698994923ea6b.5cbdvd0r51grlge5.rcgu.o _$LT$u8$u20$as$u20$alloc..vec..spec_from_elem..SpecFromElem$GT$::from_elem::he5fc054bff2de0b8 in subxt_core_no_std_tests-c9e698994923ea6b.5cbdvd0r51grlge5.rcgu.o hashbrown::raw::RawTableInner::fallible_with_capacity::had20f01794ceec46 in libsubxt_metadata-8e248289f930cb3c.rlib(subxt_metadata-8e248289f930cb3c.4di09es9j9z0uye5.rcgu.o) _$LT$alloc..vec..into_iter..IntoIter$LT$T$C$A$GT$$u20$as$u20$core..iter..traits..iterator..Iterator$GT$::next::h984782dda0343e33 in libframe_metadata-e1923b9d96c4e0ee.rlib(frame_metadata-e1923b9d96c4e0ee.frame_metadata.41e071e3dfd6810e-cgu.01.rcgu.o) _$LT$alloc..vec..into_iter..IntoIter$LT$T$C$A$GT$$u20$as$u20$core..iter..traits..iterator..Iterator$GT$::next::h148c0c7b754fe643 in libsubxt_metadata-8e248289f930cb3c.rlib(subxt_metadata-8e248289f930cb3c.4f0vy5igmgli8fsf.rcgu.o) _$LT$alloc..vec..into_iter..IntoIter$LT$T$C$A$GT$$u20$as$u20$core..iter..traits..iterator..Iterator$GT$::next::h6b190362ceded8d4 in libsubxt_metadata-8e248289f930cb3c.rlib(subxt_metadata-8e248289f930cb3c.4f0vy5igmgli8fsf.rcgu.o) _$LT$alloc..vec..into_iter..IntoIter$LT$T$C$A$GT$$u20$as$u20$core..iter..traits..iterator..Iterator$GT$::next::h6e1c6f16b2e57101 in libsubxt_metadata-8e248289f930cb3c.rlib(subxt_metadata-8e248289f930cb3c.4f0vy5igmgli8fsf.rcgu.o) ... "_memalign", referenced from: _$LT$libc_alloc..LibcAlloc$u20$as$u20$core..alloc..global..GlobalAlloc$GT$::alloc::h6ceccb6ff37b97f1 in subxt_core_no_std_tests-c9e698994923ea6b.269mpyibt1n9z2i8.rcgu.o "_memcpy", referenced from: core::ops::function::FnMut::call_mut::h50a1ff7c808fa955 in subxt_core_no_std_tests-c9e698994923ea6b.1mdjt5lke7rk419d.rcgu.o frame_metadata::_::_$LT$impl$u20$parity_scale_codec..codec..Decode$u20$for$u20$frame_metadata..RuntimeMetadataPrefixed$GT$::decode::hc2d6160521da3f99 in subxt_core_no_std_tests-c9e698994923ea6b.1v8ak6ohszt9il8x.rcgu.o frame_metadata::_::_$LT$impl$u20$parity_scale_codec..codec..Decode$u20$for$u20$frame_metadata..RuntimeMetadata$GT$::decode::_$u7b$$u7b$closure$u7d$$u7d$::h02992c01d903eeee in subxt_core_no_std_tests-c9e698994923ea6b.1v8ak6ohszt9il8x.rcgu.o frame_metadata::_::_$LT$impl$u20$parity_scale_codec..codec..Decode$u20$for$u20$frame_metadata..RuntimeMetadata$GT$::decode::_$u7b$$u7b$closure$u7d$$u7d$::h0f8ac221182a9398 in subxt_core_no_std_tests-c9e698994923ea6b.1v8ak6ohszt9il8x.rcgu.o frame_metadata::_::_$LT$impl$u20$parity_scale_codec..codec..Decode$u20$for$u20$frame_metadata..RuntimeMetadata$GT$::decode::_$u7b$$u7b$closure$u7d$$u7d$::h36e492884daaee58 in subxt_core_no_std_tests-c9e698994923ea6b.1v8ak6ohszt9il8x.rcgu.o frame_metadata::_::_$LT$impl$u20$parity_scale_codec..codec..Decode$u20$for$u20$frame_metadata..RuntimeMetadata$GT$::decode::_$u7b$$u7b$closure$u7d$$u7d$::h3dc4f7f50ba2c6b4 in subxt_core_no_std_tests-c9e698994923ea6b.1v8ak6ohszt9il8x.rcgu.o frame_metadata::_::_$LT$impl$u20$parity_scale_codec..codec..Decode$u20$for$u20$frame_metadata..RuntimeMetadata$GT$::decode::_$u7b$$u7b$closure$u7d$$u7d$::h3fb7d05b52fb5ce6 in subxt_core_no_std_tests-c9e698994923ea6b.1v8ak6ohszt9il8x.rcgu.o ... "_abort", referenced from: _rust_begin_unwind in subxt_core_no_std_tests-c9e698994923ea6b.3g07tcecbxwnnq15.rcgu.o "_free", referenced from: _$LT$libc_alloc..LibcAlloc$u20$as$u20$core..alloc..global..GlobalAlloc$GT$::dealloc::hf2148cf9f27498b8 in subxt_core_no_std_tests-c9e698994923ea6b.269mpyibt1n9z2i8.rcgu.o "_bzero", referenced from: _$LT$libc_alloc..LibcAlloc$u20$as$u20$core..alloc..global..GlobalAlloc$GT$::alloc_zeroed::ha8abe505d0f3cbe3 in subxt_core_no_std_tests-c9e698994923ea6b.269mpyibt1n9z2i8.rcgu.o alloc::alloc::Global::grow_impl::h89bdf56ff6b1f1a7 in libparity_scale_codec-39751d065c7b75ba.rlib(parity_scale_codec-39751d065c7b75ba.parity_scale_codec.c0eb5f39e1cd9682-cgu.0.rcgu.o) alloc::alloc::Global::grow_impl::hc07514a638cb7bc8 in libtwox_hash-857443a2d443ea8b.rlib(twox_hash-857443a2d443ea8b.twox_hash.599fc9e923e5a001-cgu.0.rcgu.o) ld: symbol(s) not found for architecture arm64 clang: error: linker command failed with exit code 1 (use -v to see invocation) error: could not compile `subxt-core-no-std-tests` (bin "subxt-core-no-std-tests") due to 1 previous error

jsdw · 2024-02-02T16:36:36Z

subxt/Cargo.toml

@@ -97,7 +97,7 @@ sp-runtime = { workspace = true, optional = true }

 # Other subxt crates we depend on.
 subxt-macro = { workspace = true }
-subxt-metadata = { workspace = true }
+subxt-metadata = { workspace = true, features = ["std"] }


std is enabled by default anyway so no need here really

jsdw · 2024-02-02T16:37:33Z

metadata/src/utils/retain.rs

@@ -8,8 +8,9 @@ use crate::{
    ExtrinsicMetadata, Metadata, OuterEnumsMetadata, PalletMetadataInner, RuntimeApiMetadataInner,
    StorageEntryType,
 };
+use alloc::collections::BTreeMap;
+use hashbrown::HashSet;


In other places I've just moved to using BTreeMap/BTreeSet to make it no-std compatible but hashbrown works too :)

I specifically wanted to use a HashMap in this case because we do a lot of lookups and insertions on a fairly large set of type ids here. :)

jsdw

Looks great to me; just a couple of tiny things :)

niklasad1 · 2024-02-14T15:24:48Z

.github/workflows/rust.yml

+      # Running the binary and inspecting the output would require an actual machine with matching ISA or some sort of emulator.
+      - name: Compile `no-std-tests` crate to `thumbv7em-none-eabi` target.
+        run: |
+          cargo build --target thumbv7em-none-eabi


huh, you don't need sudo apt install gcc-arm-none-eabi?

I want to see if it works in the CI without it first, for the subxt-metadata crate alone I remember if worked on my machine before installing gcc-arm-none-eabi, My guess is that it is only required for some things that the core and signer crate are doing. Let's see...

lexnv · 2024-02-15T09:00:44Z

.github/workflows/rust.yml

+  no-std-tests:
+    name: "Test (no_std)"
+    runs-on: ubuntu-latest
+    needs: [machete, docs]


I'd incline to start this test after the following needs: [clippy, wasm_clippy, check, wasm_check, docs]

I don't agree, this no-std check/test should be cheap and runs faster than for example clippy it's not really a test. It just checks that a binary builds without std enabled.

In that case, we'd need to adjust the needs: [clippy, wasm_clippy, check, wasm_check, docs] to include no-std-tests as well :D

ok, sounds good :)

lexnv · 2024-02-15T09:01:07Z

.github/workflows/rust.yml

+        run: |
+          rustup target add `thumbv7em-none-eabi`


We can use a single line syntax for this run: rustup target add thumbv7em-none-eabi`

you could also add it to target in "Install Rust nightly toolchain":

- name: Install Rust nightly toolchain uses: actions-rs/toolchain@v1 with: profile: minimal toolchain: nightly override: true target: thumbv7em-none-eabi

lexnv · 2024-02-15T09:01:33Z

.github/workflows/rust.yml

+      # We can only make sure that they compile to ARM thumb ISA.
+      # Running the binary and inspecting the output would require an actual machine with matching ISA or some sort of emulator.
+      - name: Compile `no-std-tests` crate to `thumbv7em-none-eabi` target.
+        run: |


Same here, we can use a single line syntax

lexnv · 2024-02-15T09:11:36Z

Cargo.toml

@@ -56,17 +56,20 @@ assert_matches = "1.5.0"
 base58 = { version = "0.2.0" }
 bitvec = { version = "1", default-features = false }
 blake2 = { version = "0.10.6", default-features = false }
+cfg-if = "1.0.0"


Are we using this?

niklasad1

great, LGTM

* no-std tests and porting of subxt-metadata * update pipeline * fix generate custom metadata test * fix cargo run command * adjust pipeline * remove prelude from subxt-metadata * revert autoformatting of Cargo.toml * remove alloc::format! again, still causes linker errors * add no-std-build for thumbv7em-none-eabi target * remove std feature flag * remove libc and add small readme with test instructions * change ci for nightly no std

tadeohepperle added 2 commits January 26, 2024 15:34

no-std tests and porting of subxt-metadata

a262766

Merge branch 'master' into tadeohepperle/subxt-metadata-no-std

8aa4bec

tadeohepperle requested review from a team as code owners January 26, 2024 14:41

tadeohepperle added 5 commits January 26, 2024 15:52

update pipeline

55cfb23

fix generate custom metadata test

1b4e371

fix cargo run command

d679e95

adjust pipeline

7954815

Merge branch 'master' into tadeohepperle/subxt-metadata-no-std

fbee16d

jsdw reviewed Feb 1, 2024

View reviewed changes

tadeohepperle added 5 commits February 1, 2024 18:42

remove prelude from subxt-metadata

7aa6989

Merge branch 'master' into tadeohepperle/subxt-metadata-no-std

addc4c8

revert autoformatting of Cargo.toml

87200b4

remove alloc::format! again, still causes linker errors

57743c3

Merge branch 'master' into tadeohepperle/subxt-metadata-no-std

408f81e

jsdw reviewed Feb 2, 2024

View reviewed changes

jsdw approved these changes Feb 2, 2024

View reviewed changes

tadeohepperle added 5 commits February 5, 2024 16:53

add no-std-build for thumbv7em-none-eabi target

f41f090

remove std feature flag

ce17d82

Merge branch 'master' into tadeohepperle/subxt-metadata-no-std

5d6e0d5

Merge branch 'master' into tadeohepperle/subxt-metadata-no-std

cb0d35d

remove libc and add small readme with test instructions

d447f7c

niklasad1 reviewed Feb 14, 2024

View reviewed changes

Merge branch 'master' into tadeohepperle/subxt-metadata-no-std

9c8fee0

lexnv reviewed Feb 15, 2024

View reviewed changes

niklasad1 approved these changes Feb 15, 2024

View reviewed changes

change ci for nightly no std

1aebd91

lexnv approved these changes Feb 15, 2024

View reviewed changes

tadeohepperle merged commit 5447035 into master Feb 15, 2024
13 checks passed

tadeohepperle deleted the tadeohepperle/subxt-metadata-no-std branch February 15, 2024 09:49

jsdw mentioned this pull request Mar 21, 2024

Prep to release 0.35 #1489

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Subxt Metadata: `#[no_std]` compatibility #1401

Subxt Metadata: `#[no_std]` compatibility #1401

tadeohepperle commented Jan 26, 2024

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		#[cfg(feature = "std")]
		impl std::error::Error for TryFromError {}

		// Note: using the `format!` macro like in `let path = format!("{}Error", pallet.name);`
		// leads to linker errors about extern function `_Unwind_Resume` not being defined.

Subxt Metadata: #[no_std] compatibility #1401

Subxt Metadata: #[no_std] compatibility #1401

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Subxt Metadata: `#[no_std]` compatibility #1401

Subxt Metadata: `#[no_std]` compatibility #1401

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