Inject the `compiler_builtins` crate whenever the `core` crate is injected #49503

oli-obk · 2018-03-30T11:11:29Z

It depends on libcore for providing all lang items that are necessary for doing anything useful, so core can't depend on it.

r? @japaric

cc @aturon

TimNN · 2018-03-30T11:32:32Z

Your PR failed on Travis. Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

Resolving deltas: 100% (613112/613112), completed with 4857 local objects.
---
[00:00:41] configure: rust.quiet-tests     := True
---
[00:18:45] make: *** [all] Error 1
[00:18:45] Makefile:28: recipe for target 'all' failed
---
$ ls -lat $HOME/Library/Logs/DiagnosticReports/
ls: cannot access /home/travis/Library/Logs/DiagnosticReports/: No such file or directory
travis_time:end:3901454a:start=1522409549192346845,finish=1522409549199528480,duration=7181635
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:105d11c0
$ find $HOME/Library/Logs/DiagnosticReports -type f -name '*.crash' -not -name '*.stage2-*.crash' -not -name 'com.apple.CoreSimulator.CoreSimulatorService-*.crash' -exec printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" {} \; -exec head -750 {} \; -exec echo travis_fold":"end:crashlog \; || true
find: `/home/travis/Library/Logs/DiagnosticReports': No such file or directory
travis_time:end:105d11c0:start=1522409549206175186,finish=1522409549213163157,duration=6987971
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:0511bc9a
$ dmesg | grep -i kill
[   10.870252] init: failsafe main process (1092) killed by TERM signal

If this was not helpful or you have suggestes for improvements, please ping or otherwise contact @TimNN.

TimNN · 2018-03-30T14:43:28Z

Your PR failed on Travis. Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

Resolving deltas: 100% (613128/613128), completed with 4853 local objects.
---
[00:00:43] configure: rust.quiet-tests     := True
---
[00:20:08] error[E0463]: can't find crate for `compiler_builtins`
[00:20:08]
[00:20:08] error: aborting due to previous error
[00:20:08]
[00:20:08] For more information about this error, try `rustc --explain E0463`.
[00:20:08] error: Could not compile `panic_abort`.
[00:20:08]
[00:20:08] Caused by:
[00:20:08]   process didn't exit successfully: `/checkout/obj/build/bootstrap/debug/rustc --crate-name panic_abort libpanic_abort/lib.rs --color always --error-format json --crate-type lib --emit=dep-info,link -C opt-level=2 -C metadata=14193139c52711af -C extra-filename=-14193139c52711af --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -L dependency=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps -L dependency=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/release/deps --extern libc=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps/liblibc-4b35f2d05e20a0a4.rlib --extern core=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps/libcore-a8294e31ba20c477.rlib -L native=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/build/compiler_builtins-3fdfe34106cc8b15/out` (exit code: 101)
[00:20:08] warning: build failed, waiting for other jobs to finish...
[00:20:09] error: build failed
[00:20:09] command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "build" "--target" "x86_64-unknown-linux-gnu" "--release" "--locked" "--color" "always" "--features" "panic-unwind jemalloc backtrace" "--manifest-path" "/checkout/src/libstd/Cargo.toml" "--message-format" "json"
[00:20:09] expected success, got: exit code: 101
[00:20:09] thread 'main' panicked at 'cargo must succeed', bootstrap/compile.rs:1064:9
[00:20:09] note: Run with `RUST_BACKTRACE=1` for a backtrace.
[00:20:09] travis_fold:end:stage1-std
[00:20:09] travis_time:end:stage1-std:start=1522420949020891945,finish=1522421002426650809,duration=53405758864
[00:20:09] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap build
[00:20:09] Build completed unsuccessfully in 0:15:04
[00:20:09] Makefile:28: recipe for target 'all' failed
[00:20:09] make: *** [all] Error 1
---
$ cat obj/tmp/sccache.log
---
$ ls -lat $HOME/Library/Logs/DiagnosticReports/
ls: cannot access /home/travis/Library/Logs/DiagnosticReports/: No such file or directory
travis_time:end:048fa278:start=1522421003045336271,finish=1522421003052734791,duration=7398520
travis_fold:end:after_failure.4
travis_fold:start:after_failure.5
travis_time:start:148da1bc
$ find $HOME/Library/Logs/DiagnosticReports -type f -name '*.crash' -not -name '*.stage2-*.crash' -not -name 'com.apple.CoreSimulator.CoreSimulatorService-*.crash' -exec printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" {} \; -exec head -750 {} \; -exec echo travis_fold":"end:crashlog \; || true
find: `/home/travis/Library/Logs/DiagnosticReports': No such file or directory
travis_time:end:148da1bc:start=1522421003058907052,finish=1522421003065611621,duration=6704569
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:0052db94
$ dmesg | grep -i kill
[   10.710744] init: failsafe main process (1092) killed by TERM signal

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN.

TimNN · 2018-03-30T14:45:40Z

Your PR failed on Travis. Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

Resolving deltas: 100% (613124/613124), completed with 4853 local objects.
---
[00:00:45] configure: rust.quiet-tests     := True
---
[00:23:53] error[E0463]: can't find crate for `compiler_builtins`
[00:23:53]
[00:23:53] error: aborting due to previous error
[00:23:53]
[00:23:53] For more information about this error, try `rustc --explain E0463`.
[00:23:53] error: Could not compile `unwind`.
[00:23:53]
[00:23:53] Caused by:
[00:23:53]   process didn't exit successfully: `/checkout/obj/build/bootstrap/debug/rustc --crate-name unwind libunwind/lib.rs --color always --error-format json --crate-type lib --emit=dep-info,link -C opt-level=2 -C metadata=09bb8c86b54eb662 -C extra-filename=-09bb8c86b54eb662 --out-dir /checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps --target x86_64-unknown-linux-gnu -L dependency=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps -L dependency=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/release/deps --extern libc=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps/liblibc-4b35f2d05e20a0a4.rlib --extern core=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/deps/libcore-a8294e31ba20c477.rlib -l gcc_s -L native=/checkout/obj/build/x86_64-unknown-linux-gnu/stage1-std/x86_64-unknown-linux-gnu/release/build/compiler_builtins-3fdfe34106cc8b15/out` (exit code: 101)
[00:23"always" "--features" "panic-unwind jemalloc backtrace" "--manifest-path" "/checkout/src/libstd/Cargo.toml" "--message-format" "json"
[00:23:54] expected success, got: exit code: 101
[00:23:54] thread 'main' panicked at 'cargo must succeed', bootstrap/compile.rs:1064:9
[00:23:54] note: Run with `RUST_BACKTRACE=1` for a backtrace.
[00:23:54] travis_fold:end:stage1-std
[00:23:54] travis_time:end:stage1-std:start=1522421066798884900,finish=1522421136842379243,duration=70043494343
[00:23:54] failed to run: /checkout/obj/build/bootstrap/debug/bootstrap build
[00:23:54] Build completed unsuccessfully in 0:18:40
[00:23:54] Makefile:28: recipe for target 'all' failed
[00:23:54] make: *** [all] Error 1
---
$ find $HOME/Library/Logs/DiagnosticReports -type f -name '*.crash' -not -name '*.stage2-*.crash' -not -name 'com.apple.CoreSimulator.CoreSimulatorService-*.crash' -exec printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" {} \; -exec head -750 {} \; -exec echo travis_fold":"end:crashlog \; || true
find: `/home/travis/Library/Logs/DiagnosticReports': No such file or directory
travis_time:end:17bed2ce:start=1522421137766754712,finish=1522421137778643452,duration=11888740
travis_fold:end:after_failure.5
travis_fold:start:after_failure.6
travis_time:start:0da2802c
$ dmesg | grep -i kill
[   11.516288] init: failsafe main process (1093) killed by TERM signal

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN.

japaric · 2018-03-30T16:11:18Z

I want to point out that this PR will break some nightly users of Xargo. If they were developing a no-std library and didn't have a Xargo.toml that specified the compiler-builtins crate as part of the sysroot that Xargo will build then xargo build will break for them. The fix is to add or edit a Xargo.toml to look like this:

[dependencies.core] # add this section if you didn't have it already
stage = 0

[dependencies.compiler_builtins] # add this section
features = ["mem"] # not really required
stage = 1

@alexcrichton how do you feel about this nightly-only breaking change and the Cargo.toml modifications in the diff?

This PR looks good to me but I'll leave @alexcrichton do the sign off.

r? @alexcrichton

TimNN · 2018-03-30T16:50:46Z

Your PR failed on Travis. Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

Resolving deltas: 100% (613138/613138), completed with 4854 local objects.
---
[00:00:57] configure: rust.quiet-tests     := True
---
[00:27:49] error[E0259]: the name `compiler_builtins` is defined multiple times
[00:27:49]    --> libstd/lib.rs:377:1
[00:27:49]     |
[00:27:49] 377 | extern crate compiler_builtins;
[00:27:49]     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `compiler_builtins` reimported here
[00:27:49]     |
[00:27:49]     = note: `compiler_builtins` must be defined only once in the type namespace of this module
[00:27:49] help: You can use `as` to change the binding name of the import
[00:27:49]     |
[00:27:49] 377 | extern crate compiler_builtins as other_compiler_builtins;

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN.

oli-obk · 2018-03-30T23:10:34Z

@TimNN I love the bot. The only slightly confusing situation is that it will post even after a commit that fails has been force pushed over with a commit that succeeds

alexcrichton · 2018-03-31T21:38:22Z

r=me on the rustc changes!

japaric · 2018-04-01T10:24:24Z

@bors r=alexcrichton

bors · 2018-04-01T10:24:25Z

📌 Commit 247bdb9 has been approved by alexcrichton

bors · 2018-04-01T12:53:58Z

🔒 Merge conflict

oli-obk · 2018-04-03T06:43:29Z

rebased

@bors r=alexcrichton

bors · 2018-04-03T06:43:30Z

📌 Commit 4ecbfbb has been approved by alexcrichton

bors · 2018-04-06T12:11:25Z

☔ The latest upstream changes (presumably #49154) made this pull request unmergeable. Please resolve the merge conflicts.

japaric · 2018-04-06T16:08:41Z

Fixed the merge conflict and two more Cargo.tomls; still testing locally. The Cargo.lock will need to be updated as well but that's hard to do from GH :-).

TimNN · 2018-04-06T16:11:06Z

Your PR failed on Travis. Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

Click to expand the log.

Resolving deltas: 100% (611672/611672), completed with 4861 local objects.
---
[00:00:46] configure: rust.quiet-tests     := True
---
[00:01:18] error: the lock file needs to be updated but --locked was passed to prevent this
[00:01:18] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:01:18] Build completed unsuccessfully in 0:00:31
[00:01:18] make: *** [prepare] Error 1
[00:01:18] Makefile:81: recipe for target 'prepare' failed
[00:01:18] Command failed. Attempt 2/5:
[00:01:18] error: the lock file needs to be updated but --locked was passed to prevent this
[00:01:18] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:01:18] Build completed unsuccessfully in 0:00:00
[00:01:18] make: *** [prepare] Error 1
[00:01:18] Makefile:81: recipe for target 'prepare' failed
[00:01:18] Command failed. Attempt 3/5:
[00:01:18] error: the lock file needs to be updated but --locked was passed to prevent this
[00:01:18] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:01:18] Build completed unsuccessfully in 0:00:00
[00:01:18] make: *** [prepare] Error 1
[00:01:18] Makefile:81: recipe for target 'prepare' failed
[00:01:18] Command failed. Attempt 4/5:
[00:01:18] error: the lock file needs to be updated but --locked was passed to prevent this
[00:01:18] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:01:18] Build completed unsuccessfully in 0:00:00
[00:01:18] make: *** [prepare] Error 1
[00:01:18] Makefile:81: recipe for target 'prepare' failed
[00:01:18] Command failed. Attempt 5/5:
[00:01:18] error: the lock file needs to be updated but --locked was passed to prevent this
[00:01:18] failed to run: /checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo build --manifest-path /checkout/src/bootstrap/Cargo.toml --locked
[00:01:18] Build completed unsuccessfully in 0:00:00
[00:01:18] make: *** [prepare] Error 1
[00:01:18] Makefile:81: recipe for target 'prepare' failed
[00:01:18] The command has failed after 5 attempts.
---
$ ls -lat $HOME/Library/Logs/DiagnosticReports/
ls: cannot access /home/travis/Library/Logs/DiagnosticReports/: No such file or directory
travis_time:end:0e9514fc:start=1523031062354581336,finish=1523031062362205548,duration=7624212
travis_fold:end:after_failure.2
travis_fold:start:after_failure.3
travis_time:start:0866ba90
$ find $HOME/Library/Logs/DiagnosticReports -type f -name '*.crash' -not -name '*.stage2-*.crash' -not -name 'com.apple.CoreSimulator.CoreSimulatorService-*.crash' -exec printf travis_fold":start:crashlog\n\033[31;1m%s\033[0m\n" {} \; -exec head -750 {} \; -exec echo travis_fold":"end:crashlog \; || true
find: `/home/travis/Library/Logs/DiagnosticReports': No such file or directory
travis_time:end:0866ba90:start=1523031062368936878,finish=1523031062375297956,duration=6361078
travis_fold:end:after_failure.3
travis_fold:start:after_failure.4
travis_time:start:02177eb8
$ dmesg | grep -i kill
[   10.613799] init: failsafe main process (1094) killed by TERM signal

I'm a bot! I can only do what humans tell me to, so if this was not helpful or you have suggestions for improvements, please ping or otherwise contact @TimNN.

japaric · 2018-04-06T19:29:15Z

still testing locally

I ran x.py dist for x86_64-linux and wasm32 with profilers and sanitizers enabled and it finished successfully.

@oli-obk could you update the lockfile?

…ected

oli-obk · 2018-04-07T07:25:48Z

@bors r=alexcrichton

bors · 2018-04-07T07:25:48Z

📌 Commit 679657b has been approved by alexcrichton

…ins, r=alexcrichton Inject the `compiler_builtins` crate whenever the `core` crate is injected

Rollup of 9 pull requests Successful merges: - #49510 (Fix anchor position on fields) - #49652 (Fix anchors issue when everything is collapsed) - #49702 (std: Inline some Termination-related methods) - #49728 (add emit_debug_gdb_scripts target option and ..) - #49731 (add THUMB targets to rustup manifest) - #49742 (Using X headings instead of 0.X #49739) - #49748 (proc_macro: Improve Debug representations) - #49750 (bootstrap: Remove the fast path) - #49503 (Inject the `compiler_builtins` crate whenever the `core` crate is injected) Failed merges:

The compiler_builtins crate is injected automatically now: rust-lang/rust#49503

…sdreavus rustdoc: mask `compiler_builtins` docs Fixes rust-lang#46783. I wasn't able to fully confirm the underlying cause, but my theory is that functions in `compiler_builtins` were overwriting functions with the same names in libcore in the search index. Since the functions in `compiler_builtins` didn't have docs, that's why they weren't appearing in the results. Masking the `compiler_builtins` crate fixes the search results. It appears that this crate was accidentally unmasked in rust-lang#49503.

rust-highfive assigned japaric Mar 30, 2018

oli-obk force-pushed the extern_crate_compiler_builtins branch 2 times, most recently from 6c575fd to 1a8fb17 Compare March 30, 2018 14:20

rust-highfive assigned alexcrichton and unassigned japaric Mar 30, 2018

oli-obk force-pushed the extern_crate_compiler_builtins branch 2 times, most recently from 65e1c99 to 88ecd6c Compare March 30, 2018 16:29

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 Apr 1, 2018

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 Apr 1, 2018

japaric mentioned this pull request Apr 1, 2018

add a dist builder to build rust-std components for the THUMB targets #49563

Merged

oli-obk force-pushed the extern_crate_compiler_builtins branch from 247bdb9 to 4ecbfbb Compare April 3, 2018 06:43

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 Apr 3, 2018

bors added the S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. label Apr 5, 2018

Inject the compiler_builtins crate whenever the core crate is inj…

679657b

…ected

oli-obk force-pushed the extern_crate_compiler_builtins branch from 3301ad2 to 679657b Compare April 7, 2018 07:24

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 Apr 7, 2018

kennytm added a commit to kennytm/rust that referenced this pull request Apr 7, 2018

Rollup merge of rust-lang#49503 - oli-obk:extern_crate_compiler_built…

24b3a97

…ins, r=alexcrichton Inject the `compiler_builtins` crate whenever the `core` crate is injected

kennytm mentioned this pull request Apr 7, 2018

Rollup of 9 pull requests #49753

Merged

bors merged commit 679657b into rust-lang:master Apr 7, 2018

japaric mentioned this pull request Apr 7, 2018

Merge compiler-builtins into core #49380

Closed

This was referenced Apr 8, 2018

Build compiler_builtins by default? japaric/xargo#212

Closed

Rust automatically injects a dependency on compiler_builtins now phil-opp/blog_os#426

Merged

phil-opp added a commit to rust-osdev/bootloader that referenced this pull request Apr 8, 2018

Use compiler_builtins instead of rlibc

1aa9575

The compiler_builtins crate is injected automatically now: rust-lang/rust#49503

zokier mentioned this pull request Apr 8, 2018

/checkout/src/libcore/num/mod.rs:920: undefined reference to `__muloti4' when using core::num methods in a no-std staticlib #48339

Closed

lachlansneff mentioned this pull request Apr 8, 2018

Added Xargo.toml rust-osdev/bootloader#9

Closed

robert-w-gries mentioned this pull request Apr 10, 2018

Cannot build compiler_builtins_shim for i686 targets japaric/xargo#216

Open

phil-opp mentioned this pull request Apr 23, 2018

Getting some weird bugs after trying to update bootimage rust-osdev/bootimage#10

Closed

kryo4096 pushed a commit to kryo4096/RostOS that referenced this pull request Dec 17, 2018

Use compiler_builtins instead of rlibc

40ef22f

The compiler_builtins crate is injected automatically now: rust-lang/rust#49503

euclio mentioned this pull request Feb 14, 2019

rustdoc: mask compiler_builtins docs #58448

Merged

oli-obk deleted the extern_crate_compiler_builtins branch June 15, 2020 15:26

ehuss mentioned this pull request Sep 10, 2022

Remove core dependency of profiler_builtins #101009

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Inject the `compiler_builtins` crate whenever the `core` crate is injected #49503

Inject the `compiler_builtins` crate whenever the `core` crate is injected #49503

oli-obk commented Mar 30, 2018 •

edited by jyn514

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bors commented Apr 7, 2018

Inject the compiler_builtins crate whenever the core crate is injected #49503

Inject the compiler_builtins crate whenever the core crate is injected #49503

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bors commented Apr 7, 2018

Inject the `compiler_builtins` crate whenever the `core` crate is injected #49503

Inject the `compiler_builtins` crate whenever the `core` crate is injected #49503

oli-obk commented Mar 30, 2018 •

edited by jyn514

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