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fix llvm_out to use the correct LLVM root #120721

Merged
merged 2 commits into from
Feb 10, 2024
Merged

fix llvm_out to use the correct LLVM root #120721

merged 2 commits into from
Feb 10, 2024

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onur-ozkan
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@onur-ozkan onur-ozkan commented Feb 6, 2024 •
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When download-ci-llvm is enabled, llvm_out ends up with the
error below due to an incorrect path on cross-compilations. This change fixes that.

failed to execute command: "/rust/build/x86_64-unknown-linux-gnu/llvm/build/bin/llvm-config" "--version"
ERROR: No such file or directory (os error 2)

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rustbot commented Feb 6, 2024

r? @albertlarsan68

(rustbot has picked a reviewer for you, use r? to override)

@rustbot rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-bootstrap Relevant to the bootstrap subteam: Rust's build system (x.py and src/bootstrap) labels Feb 6, 2024
@onur-ozkan onur-ozkan changed the title fix llvm_out to find the correct LLVM root. fix llvm_out to find the correct LLVM root Feb 6, 2024
@onur-ozkan onur-ozkan force-pushed the incorrect-llvm-path-on-cross-target branch 2 times, most recently from d780721 to d3848dc Compare February 6, 2024 21:55
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rustbot commented Feb 6, 2024

This PR changes how LLVM is built. Consider updating src/bootstrap/download-ci-llvm-stamp.

@onur-ozkan onur-ozkan changed the title fix llvm_out to find the correct LLVM root fix prebuilt_llvm_config to use the correct LLVM root Feb 6, 2024
@onur-ozkan
fix llvm_out to use the correct LLVM root
7fb4512 
When `download-ci-llvm` is enabled, `llvm_out` ends up with the
error below due to an incorrect path on cross-compilations. This change fixes that.

```
failed to execute command: "/rust/build/x86_64-unknown-linux-gnu/llvm/build/bin/llvm-config" "--version"
ERROR: No such file or directory (os error 2)
```

Signed-off-by: onur-ozkan <[email protected]>
@onur-ozkan onur-ozkan force-pushed the incorrect-llvm-path-on-cross-target branch from d3848dc to 7fb4512 Compare February 6, 2024 22:56
@onur-ozkan onur-ozkan changed the title fix prebuilt_llvm_config to use the correct LLVM root fix llvm_out to use the correct LLVM root Feb 6, 2024
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Thanks for the PR!
@bors r+

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bors commented Feb 7, 2024

📌 Commit 7fb4512 has been approved by albertlarsan68

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Feb 7, 2024
@onur-ozkan
test llvm_out behaviour
63cc3c7 
Signed-off-by: onur-ozkan <[email protected]>
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onur-ozkan commented Feb 7, 2024 •
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I just added a unit test for testing the behaviour of llvm_out (just in case we don't break anything now and in the future).

@bors r-

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Feb 7, 2024
@onur-ozkan onur-ozkan added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Feb 7, 2024
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Thanks for the PR!
r=me when CI is green

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@bors r=albertlarsan68 rollup

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bors commented Feb 7, 2024

📌 Commit 63cc3c7 has been approved by albertlarsan68

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Feb 7, 2024
Nadrieril added a commit to Nadrieril/rust that referenced this pull request Feb 7, 2024
@Nadrieril
Rollup merge of rust-lang#120721 - onur-ozkan:incorrect-llvm-path-on-…
0d3ff16 
…cross-target, r=albertlarsan68

fix `llvm_out` to use the correct LLVM root

When `download-ci-llvm` is enabled, `llvm_out` ends up with the
error below due to an incorrect path on cross-compilations. This change fixes that.

```sh
failed to execute command: "/rust/build/x86_64-unknown-linux-gnu/llvm/build/bin/llvm-config" "--version"
ERROR: No such file or directory (os error 2)
```
@Nadrieril Nadrieril mentioned this pull request Feb 7, 2024
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bors added a commit to rust-lang-ci/rust that referenced this pull request Feb 7, 2024
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Auto merge of rust-lang#120743 - Nadrieril:rollup-h2mxjc2, r=Nadrieril
e8ec9f4 
Rollup of 13 pull requests

Successful merges:

 - rust-lang#110482 (Add armv8r-none-eabihf target for the Cortex-R52.)
 - rust-lang#119162 (Add unstable `-Z direct-access-external-data` cmdline flag for `rustc`)
 - rust-lang#120302 (various const interning cleanups)
 - rust-lang#120455 ( Add FileCheck annotations to MIR-opt SROA tests)
 - rust-lang#120470 (Mark "unused binding" suggestion as maybe incorrect)
 - rust-lang#120479 (Suggest turning `if let` into irrefutable `let` if appropriate)
 - rust-lang#120564 (coverage: Split out counter increment sites from BCB node/edge counters)
 - rust-lang#120633 (pattern_analysis: gather up place-relevant info)
 - rust-lang#120664 (Add parallel rustc ui tests)
 - rust-lang#120721 (fix `llvm_out` to use the correct LLVM root)
 - rust-lang#120726 (Don't use bashism in checktools.sh)
 - rust-lang#120733 (MirPass: make name more const)
 - rust-lang#120735 (Remove some `unchecked_claim_error_was_emitted` calls)

Failed merges:

 - rust-lang#120727 (exhaustiveness: Prefer "`0..MAX` not covered" to "`_` not covered")

r? `@ghost`
`@rustbot` modify labels: rollup
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I got this linker-related rollout failure, could this be the culprit?

@onur-ozkan
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I am not so sure.

@bors rollup=iffy

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FWIW the rest of the rollup worked

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Nadrieril commented Feb 8, 2024 •
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Two interesting things in the error output:

  • -iphoneos_version_min has been renamed to -ios_version_min
  • ld: unknown options: -ios_simulator_version_min

Googling around, it looks like Xcode 15 beta 3 has the same two things. Apparently because of the ld version they use. I'd guess that the ci-downloaded llvm has a different ld and your change revealed that.

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Nadrieril commented Feb 8, 2024 •
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This doesn't look like a spurious failure at least. Maybe @rust-lang/bootstrap would know more? For the bootstrap team: this PR makes more use of the CI LLVM, which as far as I can tell triggered a problem with ld flags on x86_64-apple-darwin (error here).

@bors r-

From googling, suggested workaround is to use the -ld64 flag to use the old linker. Or use the newer -platform_version flag instead.

@bors bors added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. labels Feb 8, 2024
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onur-ozkan commented Feb 8, 2024 •
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I don't understand how this is relevant. Currently, llvm_out is returning the compiled LLVM path. This PR modifies it to return the ci-llvm path if download-ci-llvm is enabled. However, download-ci-llvm is disabled in the CI pipeline (failed one) anyway . Therefore, this PR shouldn't have any effect there.

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Nadrieril commented Feb 8, 2024 •
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Oh. removing this PR from the rollup fixed the error though, do you think it was a fluke?

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do you think it was a fluke?

I think it was

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Alright then, I can't claim to understand much in this topic

@bors r=albertlarsan68 rollup=iffy

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bors commented Feb 8, 2024

📌 Commit 63cc3c7 has been approved by albertlarsan68

It is now in the queue for this repository.

@bors bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Feb 8, 2024
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bors commented Feb 10, 2024

⌛ Testing commit 63cc3c7 with merge 68125c7...

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bors commented Feb 10, 2024

☀️ Test successful - checks-actions
Approved by: albertlarsan68
Pushing 68125c7 to master...

@bors bors added the merged-by-bors This PR was explicitly merged by bors. label Feb 10, 2024
@bors bors merged commit 68125c7 into rust-lang:master Feb 10, 2024
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@rustbot rustbot added this to the 1.78.0 milestone Feb 10, 2024
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Finished benchmarking commit (68125c7): comparison URL.

Overall result: no relevant changes - no action needed

@rustbot label: -perf-regression

Instruction count

This benchmark run did not return any relevant results for this metric.

Max RSS (memory usage)

This benchmark run did not return any relevant results for this metric.

Cycles

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)		 - - 0
Regressions ❌
(secondary)		 - - 0
Improvements ✅
(primary)		 - - 0
Improvements ✅
(secondary)		 -3.8% [-3.8%, -3.8%] 1
All ❌✅ (primary) - - 0

Binary size

Results

This is a less reliable metric that may be of interest but was not used to determine the overall result at the top of this comment.

mean range count
Regressions ❌
(primary)		 - - 0
Regressions ❌
(secondary)		 0.1% [0.1%, 0.1%] 1
Improvements ✅
(primary)		 - - 0
Improvements ✅
(secondary)		 - - 0
All ❌✅ (primary) - - 0

Bootstrap: 666.849s -> 667.844s (0.15%)
Artifact size: 308.02 MiB -> 308.06 MiB (0.01%)

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I stand corrected, sorry for making a fuss 🙏

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