i686-pc-windows-gnu is not supported

[oli-obk]

We need this in rustc.

The error is

undefined reference to `@rust_psm_stack_pointer@0'

I'm looking into this now

[oli-obk]

Hmm... @nagisa did you already fix this? I am unable to cross-build because of

undefined reference to `_Unwind_RaiseException'

but there's no error about rust_psm_stack_pointer

[mati865]

Oh I see, #19 enabled only x86_64 tests because only x86_64 MinGW is preinstalled on the CI. I'll open PR to enable i686 today if nothing goes wrong.

[mati865]

I am unable to cross-build because of

undefined reference to `_Unwind_RaiseException'

@oli-obk you need proper toolchain.
Ubuntu and most of distributions ship i686 with SLJL exceptions but Rust needs Dwarf-2. Fedora 32 ships good i686 toolchain and you can easily install it on Arch Linux using AUR.
On Windows basically every toolchain that use mingw-w64 will have Dwarf-2 exceptions.

[mati865]

i686 tests pass locally for me but I'm afraid Rust is hitting stdcall issue: rust-lang/rust#50176
I'll build Rust with stacker and see if my WIP linking fix also works here.

[nagisa]

Hey, thanks for working on this! I didn’t have an opportunity to attempt to reproduce this yet myself (building rustc on windows is a major nuisance).

In theory if there’s no other solution we can also just look into changing the ABI used to something else entirely, though it would require changing assembly here.

[nagisa]

Another thing that could help is replacing all #[inline(always)] with #[inline(never)] in psm. See this.

[mati865]

Stacker and psm pass tests locally but on the CI build just fails with gcc returning 1. No idea what is going on.

Another thing that could help is replacing all #[inline(always)] with #[inline(never)] in psm.

I'll try that next week but there must be some underlying issue since it works for x86_64:

$ nm /d/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_driver-cc51f7a2a2df7bf8.dll.a | rg psm
00000000 I __imp___ZN56_$LT$psm..StackDirection$u20$as$u20$core..fmt..Debug$GT$3fmt17h40cf93c5e4141e4aE
00000000 T __ZN56_$LT$psm..StackDirection$u20$as$u20$core..fmt..Debug$GT$3fmt17h40cf93c5e4141e4aE

$ nm /d/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_driver-b892dd94b06f2aab.dll.a | rg psm
0000000000000000 I __imp_rust_psm_stack_pointer
0000000000000000 T rust_psm_stack_pointer
0000000000000000 I __imp_rust_psm_stack_direction
0000000000000000 T rust_psm_stack_direction
0000000000000000 I __imp__ZN56_$LT$psm..StackDirection$u20$as$u20$core..fmt..Debug$GT$3fmt17h51b8a647b47bbeeaE
0000000000000000 T _ZN56_$LT$psm..StackDirection$u20$as$u20$core..fmt..Debug$GT$3fmt17h51b8a647b47bbeeaE

$ nm -A /d/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/* | rg rust_psm_stack_pointer
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/libpsm-0c7efffd6230082c.rlib:x86_windows_gnu.o:00000010 T @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_ast_lowering-19f5b54b0ba18dd0.rlib:rustc_ast_lowering-19f5b54b0ba18dd0.212o0uw5wkg49o6m.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_codegen_llvm-909b4a7a05c924c7.rlib:rustc_codegen_llvm-909b4a7a05c924c7.amn0rqy8i77omn5.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_codegen_ssa-5ffca8de078375f5.rlib:rustc_codegen_ssa-5ffca8de078375f5.sdonbfr9ccxo61c.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_incremental-c2e52eab5eddd81a.rlib:rustc_incremental-c2e52eab5eddd81a.2ojllhm44mxwcy7i.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_infer-f45a95b18d830e33.rlib:rustc_infer-f45a95b18d830e33.2wqka10j28jh1rdv.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_interface-65140c7c042fb5fc.rlib:rustc_interface-65140c7c042fb5fc.1g269pe3f6qrjyqh.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_lint-591f7ac6439d6414.rlib:rustc_lint-591f7ac6439d6414.1lr33f37jr2xsuc9.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_metadata-34d463118ae5ccdc.rlib:rustc_metadata-34d463118ae5ccdc.3oe4a254tzj0dpd.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_middle-e1bd75184e7aedc5.rlib:rustc_middle-e1bd75184e7aedc5.18ezdwbwspaevkul.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_mir_build-5a5152430666a4c3.rlib:rustc_mir_build-5a5152430666a4c3.15mf8l0z3u939lnh.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_mir-0ec311932875b8ab.rlib:rustc_mir-0ec311932875b8ab.2r54rrc339bv2t4y.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_passes-dd7187836c930acd.rlib:rustc_passes-dd7187836c930acd.2cif3g7ouhdc0alw.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_plugin_impl-99f0b8158a38845e.rlib:rustc_plugin_impl-99f0b8158a38845e.1fetkqalpysdzyxy.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_privacy-b0ff442e176f023d.rlib:rustc_privacy-b0ff442e176f023d.1ez4rpwvamdcbu8q.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_resolve-829799b301d142f1.rlib:rustc_resolve-829799b301d142f1.kngas43fsasuam7.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_save_analysis-60b3fe2b666a609e.rlib:rustc_save_analysis-60b3fe2b666a609e.2m5ltogp9s794q5g.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_symbol_mangling-f6e7b7ab9b0824f4.rlib:rustc_symbol_mangling-f6e7b7ab9b0824f4.5g7lw1nsjrg4wd3e.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_trait_selection-098e4dccde72e155.rlib:rustc_trait_selection-098e4dccde72e155.76qwusuzn8ipnou.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_traits-bb534d7e44a59739.rlib:rustc_traits-bb534d7e44a59739.orsuftne4lvqwll.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_ty-3c41b1dd503ba28c.rlib:rustc_ty-3c41b1dd503ba28c.2vkspvcnd7mqcm1g.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/librustc_typeck-5761635dfa22b88c.rlib:rustc_typeck-5761635dfa22b88c.3k304fp2yzyab1x2.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/libstacker-1b6d820f7ceb6cd0.rlib:stacker-1b6d820f7ceb6cd0.stacker.3kcyix2c-cgu.4.rcgu.o:         U @rust_psm_stack_pointer@0
D:/Projekty/rust/build/i686-pc-windows-gnu/stage1/lib/rustlib/i686-pc-windows-gnu/lib/rustc_driver-cc51f7a2a2df7bf8.dll:65af2580 T @rust_psm_stack_pointer@0

$ nm -A /d/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/* | rg rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/libpsm-5f57c686597be673.rlib:x86_64_windows_gnu.o:0000000000000010 T rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_ast_lowering-fe4f5846c8752e39.rlib:rustc_ast_lowering-fe4f5846c8752e39.561szf5zmed3ora9.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_codegen_llvm-7ffceece05856d53.rlib:rustc_codegen_llvm-7ffceece05856d53.4ofzgr9ga419m6vf.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_codegen_ssa-33f49771604d11dc.rlib:rustc_codegen_ssa-33f49771604d11dc.3ez9b9adzd16zfs2.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_driver-b892dd94b06f2aab.dll.a:d012412.o:0000000000000000 I __imp_rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_driver-b892dd94b06f2aab.dll.a:d012412.o:0000000000000000 T rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_incremental-f901d0e5235d01f3.rlib:rustc_incremental-f901d0e5235d01f3.8stixxxxsxwyk6l.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_infer-0a67475a2928c555.rlib:rustc_infer-0a67475a2928c555.3pn73jxrrievpjgz.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_interface-3a0fee10ca32aa3e.rlib:rustc_interface-3a0fee10ca32aa3e.1hcnt3lji9kacy7c.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_lint-bc0625fa618df8a0.rlib:rustc_lint-bc0625fa618df8a0.clyt8robqkaphao.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_metadata-f93d24bd489a26c0.rlib:rustc_metadata-f93d24bd489a26c0.5cfm5nsp1x35a5by.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_middle-6a66a8022ccc5361.rlib:rustc_middle-6a66a8022ccc5361.53gbdelcfhbkufmr.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_mir_build-302e9af443d013e2.rlib:rustc_mir_build-302e9af443d013e2.4a8ecnwm6hp5z6bg.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_mir-aeb1cde024706aa1.rlib:rustc_mir-aeb1cde024706aa1.4c8qjlm3s9ug9lu8.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_passes-ea69bec1d60ebbfc.rlib:rustc_passes-ea69bec1d60ebbfc.4zu9imkg2fitpssq.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_plugin_impl-c0314b4d4c7f6d22.rlib:rustc_plugin_impl-c0314b4d4c7f6d22.z822u30gtdvfy3v.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_privacy-f96086dd660f55ca.rlib:rustc_privacy-f96086dd660f55ca.1ug06uadxym2elct.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_resolve-9c8529e657dc2306.rlib:rustc_resolve-9c8529e657dc2306.1y7xxv83ts28qwmx.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_save_analysis-e51c2b666738e519.rlib:rustc_save_analysis-e51c2b666738e519.45rw1am5cljzn6zx.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_symbol_mangling-d1497802dc974b79.rlib:rustc_symbol_mangling-d1497802dc974b79.27ltazi12qk11qpm.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_trait_selection-955f5261199f95fa.rlib:rustc_trait_selection-955f5261199f95fa.5bc6483t5q7e0he0.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_traits-382b0bb4899d9611.rlib:rustc_traits-382b0bb4899d9611.7wfzqvgwx9ktz20.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_ty-7f2a2dee0108ef85.rlib:rustc_ty-7f2a2dee0108ef85.2oh53kxndhrxrew4.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/librustc_typeck-53b9556db66eb191.rlib:rustc_typeck-53b9556db66eb191.4yyry2axt5ld0s9x.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/libstacker-a91010df389989d1.rlib:stacker-a91010df389989d1.stacker.3kqsn93b-cgu.2.rcgu.o:                 U rust_psm_stack_pointer
D:/Projekty/rust/build/x86_64-pc-windows-gnu/stage1/lib/rustlib/x86_64-pc-windows-gnu/lib/rustc_driver-b892dd94b06f2aab.dll:000000006a2446e0 T rust_psm_stack_pointer

[nagisa]

Published psm 0.1.8 with the change.

Will try rebasing/landing the compiler change, if nobody gets to it before me before the weekend.

[mati865]

I've pushed rebase yesterday to my fork. See the latest comment on the PR.

[nagisa]

This can be closed, I think.