Investigate failures to link in standard libraries #109

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1. adpaco

   added

   Area: compilation

   [F] SoundnessKani failed to detect an issueKani failed to detect an issue

   on Apr 27, 2021
2. adpaco

   assigned

   markrtuttle

   on Apr 27, 2021
3. nchong-at-aws commented on May 4, 2021

   

   nchong-at-aws

   on May 4, 2021

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   cargo new SizeAndAlignOfDstTest #< this test needs mutex and cell (which aren't linked)
   cd SizeAndAlignOfDstTest
   cp ~/rmc/rust-tests/cbmc-reg/SizeAndAlignOfDst/main_fail.rs src/main.rs 
   rustup component add rust-src --toolchain nightly
   cargo +nightly run -Z build-std --target x86_64-unknown-linux-gnu #< succeeds (just compiling)
   RUSTFLAGS="-Z trim-diagnostic-paths=no -Z codegen-backend=gotoc --cfg=rmc" RUSTC=rmc-rustc cargo +nightly build -Z build-std --target x86_64-unknown-linux-gnu #< fails trying to compile libc
   
4. danielsn

   assigned

   danielsn

   and unassigned

   markrtuttle

   on Jun 22, 2021
5. avanhatt commented on Jun 28, 2021

   

   avanhatt

   on Jun 28, 2021

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   cp ~/rmc/rust-tests/cbmc-reg/SizeAndAlignOfDst/main_fail.rs src/main.rs

   Is now (after tests moved):

   cp ../rmc/src/test/cbmc/SizeAndAlignOfDst/main_fail.rs src/main.rs
   
6. avanhatt commented on Jul 12, 2021

   

   avanhatt

   on Jul 12, 2021

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   We can now successfully codegen all of the crates in the standard library (!) (with some specific functions skipped, in the linked issues).

   However, we now fail with an actual linker error when attempting to compile the local crate, presumably because our backend does not build .rlib files:

    Compiling core v0.0.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/core)
      Compiling rustc-std-workspace-core v1.99.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/rustc-std-workspace-core)
      Compiling compiler_builtins v0.1.45
      Compiling libc v0.2.93
      Compiling alloc v0.0.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/alloc)
      Compiling cfg-if v0.1.10
      Compiling adler v0.2.3
      Compiling rustc-demangle v0.1.18
      Compiling unwind v0.0.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/unwind)
      Compiling rustc-std-workspace-alloc v1.99.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/rustc-std-workspace-alloc)
      Compiling panic_abort v0.0.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/panic_abort)
      Compiling panic_unwind v0.0.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/panic_unwind)
      Compiling gimli v0.23.0
      Compiling std_detect v0.1.5 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/stdarch/crates/std_detect)
      Compiling miniz_oxide v0.4.0
      Compiling object v0.22.0
      Compiling hashbrown v0.11.0
      Compiling addr2line v0.14.0
      Compiling std v0.0.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/std)
      Compiling proc_macro v0.0.0 (/home/ubuntu/rmc/build/x86_64-unknown-linux-gnu/stage1/lib/rustlib/src/rust/library/proc_macro)
      Compiling SizeAndAlignOfDstTest v0.1.0 (/home/ubuntu/SizeAndAlignOfDstTest)
   error: extern location for std does not exist: /home/ubuntu/SizeAndAlignOfDstTest/target/x86_64-unknown-linux-gnu/debug/deps/libstd-b5c5f6c5c49f492a.rlib
   error: aborting due to previous error
   error: could not compile `SizeAndAlignOfDstTest`
   To learn more, run the command again with --verbose.
7. avanhatt commented on Sep 9, 2021

   

   avanhatt

   on Sep 9, 2021

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   The final linking error seems to be the same root issue as here: RMC fails to build when the final target is a main.rs cargo target instead of a lib.rs one: #473
8. celinval

   self-assigned this

   on Oct 27, 2021
9. celinval

   added a commit that references this issue on Jan 12, 2022

   Fix discarded in-out constraint in inline asm (model-checking#110)

   ...

   This issue will close once commit ddb015a is merged into the 'main' branch.

   ddb015a
10. celinval

    closed this as completedin ddb015aon Jan 12, 2022
11. zhassan-aws

    reopened this on Jan 12, 2022
12. celinval commented on Jan 13, 2022

    

    celinval

    on Jan 13, 2022

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    It looks like this got closed by mistake after the last merge. That said, this issue is fairly open ended, and we have already fixed the regression script. So let's close it and open more specific issues for each failure we find.
13. celinval

    closed this as completedon Jan 13, 2022