-
Notifications
You must be signed in to change notification settings - Fork 12.7k
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Fix linking error when compiling for 32-bit watchOS #130077
Merged
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
rustbot
added
S-waiting-on-review
Status: Awaiting review from the assignee but also interested parties.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
labels
Sep 7, 2024
madsmtm
commented
Sep 7, 2024
Comment on lines
+39
to
40
#[cfg(all(target_arch = "arm", target_vendor = "apple"))] | ||
pub const unwinder_private_data_size: usize = 5; |
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
I have verified that this is correct by compiling the following C code on different Apple platforms:
#include <unwind.h>
int SIZE_OF_PRIVATE_DATA = (sizeof(_Unwind_Exception) - sizeof(uint64_t) - sizeof(void*)) / sizeof(void*);
BlackHoleFox
reviewed
Sep 8, 2024
In rust-lang#124748, I mistakenly conflated "not SjLj" to mean "ARM EHABI", which isn't true, watchOS armv7k (specifically only that architecture) uses a third unwinding method called "DWARF CFI".
madsmtm
force-pushed
the
watchos-arm-unwind
branch
from
September 8, 2024 07:12
0b9db29
to
f98ca32
Compare
@bors r+ rollup |
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
Sep 11, 2024
2 tasks
workingjubilee
added a commit
to workingjubilee/rustc
that referenced
this pull request
Sep 11, 2024
…ingjubilee Fix linking error when compiling for 32-bit watchOS In rust-lang#124494 (or rust-lang#124748), I mistakenly conflated "not SjLj" to mean "ARM EHABI", which isn't true, 32-bit watchOS uses a third unwinding method called "DWARF CFI". So this PR is effectively a revert of rust-lang#124494, with a few more comments explaining what's going on. Fixes rust-lang#130071. r? Mark-Simulacrum (since you reviewed the original)
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Sep 11, 2024
…kingjubilee Rollup of 14 pull requests Successful merges: - rust-lang#129260 (Don't suggest adding return type for closures with default return type) - rust-lang#129520 (Suggest the correct pattern syntax on usage of unit variant pattern for a struct variant) - rust-lang#129696 (update stdarch) - rust-lang#129759 (Stabilize `const_refs_to_static`) - rust-lang#129835 (enable const-float-classify test, and test_next_up/down on 32bit x86) - rust-lang#129866 (Clarify documentation labelling and definitions for std::collections) - rust-lang#130052 (Don't leave debug locations for constants sitting on the builder indefinitely) - rust-lang#130077 (Fix linking error when compiling for 32-bit watchOS) - rust-lang#130123 (Report the `note` when specified in `diagnostic::on_unimplemented`) - rust-lang#130156 (Add test for S_OBJNAME & update test for LF_BUILDINFO cl and cmd) - rust-lang#130206 (Map `WSAEDQUOT` to `ErrorKind::FilesystemQuotaExceeded`) - rust-lang#130207 (Map `ERROR_CANT_RESOLVE_FILENAME` to `ErrorKind::FilesystemLoop`) - rust-lang#130219 (Fix false positive with `missing_docs` and `#[test]`) - rust-lang#130221 (Make SearchPath::new public) r? `@ghost` `@rustbot` modify labels: rollup
workingjubilee
added a commit
to workingjubilee/rustc
that referenced
this pull request
Sep 11, 2024
…ingjubilee Fix linking error when compiling for 32-bit watchOS In rust-lang#124494 (or rust-lang#124748), I mistakenly conflated "not SjLj" to mean "ARM EHABI", which isn't true, 32-bit watchOS uses a third unwinding method called "DWARF CFI". So this PR is effectively a revert of rust-lang#124494, with a few more comments explaining what's going on. Fixes rust-lang#130071. r? Mark-Simulacrum (since you reviewed the original)
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Sep 11, 2024
…kingjubilee Rollup of 11 pull requests Successful merges: - rust-lang#119286 (show linker output even if the linker succeeds) - rust-lang#129103 (Don't warn empty branches unreachable for now) - rust-lang#129696 (update stdarch) - rust-lang#129835 (enable const-float-classify test, and test_next_up/down on 32bit x86) - rust-lang#129992 (Update compiler-builtins to 0.1.125) - rust-lang#130052 (Don't leave debug locations for constants sitting on the builder indefinitely) - rust-lang#130077 (Fix linking error when compiling for 32-bit watchOS) - rust-lang#130114 (Remove needless returns detected by clippy in the compiler) - rust-lang#130156 (Add test for S_OBJNAME & update test for LF_BUILDINFO cl and cmd) - rust-lang#130168 (maint: update docs for change_time ext and doc links) - rust-lang#130239 (miri: fix overflow detection for unsigned pointer offset) r? `@ghost` `@rustbot` modify labels: rollup
bors
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Sep 11, 2024
…kingjubilee Rollup of 10 pull requests Successful merges: - rust-lang#129103 (Don't warn empty branches unreachable for now) - rust-lang#129696 (update stdarch) - rust-lang#129835 (enable const-float-classify test, and test_next_up/down on 32bit x86) - rust-lang#130077 (Fix linking error when compiling for 32-bit watchOS) - rust-lang#130114 (Remove needless returns detected by clippy in the compiler) - rust-lang#130168 (maint: update docs for change_time ext and doc links) - rust-lang#130228 (notify Miri when intrinsics are changed) - rust-lang#130239 (miri: fix overflow detection for unsigned pointer offset) - rust-lang#130244 (Use the same span for attributes and Try expansion of ?) - rust-lang#130248 (Limit `libc::link` usage to `nto70` target only, not NTO OS) r? `@ghost` `@rustbot` modify labels: rollup
rust-timer
added a commit
to rust-lang-ci/rust
that referenced
this pull request
Sep 12, 2024
Rollup merge of rust-lang#130077 - madsmtm:watchos-arm-unwind, r=workingjubilee Fix linking error when compiling for 32-bit watchOS In rust-lang#124494 (or rust-lang#124748), I mistakenly conflated "not SjLj" to mean "ARM EHABI", which isn't true, 32-bit watchOS uses a third unwinding method called "DWARF CFI". So this PR is effectively a revert of rust-lang#124494, with a few more comments explaining what's going on. Fixes rust-lang#130071. r? Mark-Simulacrum (since you reviewed the original)
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Labels
S-waiting-on-bors
Status: Waiting on bors to run and complete tests. Bors will change the label on completion.
T-libs
Relevant to the library team, which will review and decide on the PR/issue.
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
In #124494 (or #124748), I mistakenly conflated "not SjLj" to mean "ARM EHABI", which isn't true, 32-bit watchOS uses a third unwinding method called "DWARF CFI".
So this PR is effectively a revert of #124494, with a few more comments explaining what's going on.
Fixes #130071.
r? Mark-Simulacrum (since you reviewed the original)