[go] runtime/cgo: avoid unused parameter warning
Gerrit Bot (Gerrit)
Gerrit Bot has uploaded the change for review![]( "Open in Gerrit")
Commit message
runtime/cgo: avoid unused parameter warning
Annotate the unused parameter with `__attribute__((unused))` to avoid
build failures in environments that treat unused parameters as errors.
We see this when using `rules_go`:
```
@@rules_go+//:stdlib
builder failed: error executing GoStdlib command (from stdlib rule target @@rules_go+//:stdlib) bazel-out/linux_host_platform-opt-exec-ST-f2d1f3f5d18d/bin/external/rules_go++go_sdk+main___download_0/builder_reset/builder stdlib -sdk external/rules_go++go_sdk+main___download_0 -goroot ... (remaining 16 arguments skipped)
Use --sandbox_debug to see verbose messages from the sandbox and retain the sandbox build root for debugging
stderr:
# runtime/cgo
gcc_clearenv.c:13:23: error: unused parameter '_unused' [-Werror,-Wunused-parameter]
stdlib: error running subcommand external/rules_go++go_sdk+main___download_0/bin/go: exit status 1
```
This matches the style used in `src/runtime/cgo/gcc_libinit.c` since
dc2ae2886fbcd2297d2a0ea67a5d220ae2c74152 which fixed an identical issue.
Change diff
diff --git a/src/runtime/cgo/gcc_clearenv.c b/src/runtime/cgo/gcc_clearenv.c
index 7657e35..c4f69c1 100644
--- a/src/runtime/cgo/gcc_clearenv.c
+++ b/src/runtime/cgo/gcc_clearenv.c
@@ -10,7 +10,7 @@
/* Stub for calling clearenv */
void
-x_cgo_clearenv(void **_unused)
+x_cgo_clearenv(void **env __attribute__((unused)))
{
_cgo_tsan_acquire();
clearenv();
Change information
- M src/runtime/cgo/gcc_clearenv.c
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Gopher Robot (Gerrit)
Gopher Robot added 1 comment![]( "Open in Gerrit")
I spotted some possible problems with your PR:
1. You have a long 108 character line in the commit message body. Please add line breaks to long lines that should be wrapped. Lines in the commit message body should be wrapped at ~76 characters unless needed for things like URLs or tables. (Note: GitHub might render long lines as soft-wrapped, so double-check in the Gerrit commit message shown above.)
2. It looks like you are using markdown in the commit message. If so, please remove it. Be sure to double-check the plain text shown in the Gerrit commit message above for any markdown backticks, markdown links, or other markdown formatting.
3. You usually need to reference a bug number for all but trivial or cosmetic fixes. For this repo, the format is usually 'Fixes #12345' or 'Updates #12345' at the end of the commit message. Should you have a bug reference?
Please address any problems by updating the GitHub PR.
When complete, mark this comment as 'Done' and click the [blue 'Reply' button](https://go.dev/wiki/GerritBot#i-left-a-reply-to-a-comment-in-gerrit-but-no-one-but-me-can-see-it) above. These findings are based on heuristics; if a finding does not apply, briefly reply here saying so.
To update the commit title or commit message body shown here in Gerrit, you must edit the GitHub PR title and PR description (the first comment) in the GitHub web interface using the 'Edit' button or 'Edit' menu entry there. Note: pushing a new commit to the PR will not automatically update the commit message used by Gerrit.
For more details, see:
- [how to update commit messages](https://go.dev/wiki/GerritBot/#how-does-gerritbot-determine-the-final-commit-message) for PRs imported into Gerrit.
- the Go project's [conventions for commit messages](https://go.dev/doc/contribute#commit_messages) that you should follow.
(In general for Gerrit code reviews, the change author is expected to [log in to Gerrit](https://go-review.googlesource.com/login/) with a Gmail or other Google account and then close out each piece of feedback by marking it as 'Done' if implemented as suggested or otherwise reply to each review comment. See the [Review](https://go.dev/doc/contribute#review) section of the Contributing Guide for details.)
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Tamir Duberstein (Gerrit)
Tamir Duberstein added 1 comment![]( "Open in Gerrit")
I spotted some possible problems with your PR:
1. You have a long 108 character line in the commit message body. Please add line breaks to long lines that should be wrapped. Lines in the commit message body should be wrapped at ~76 characters unless needed for things like URLs or tables. (Note: GitHub might render long lines as soft-wrapped, so double-check in the Gerrit commit message shown above.)
2. It looks like you are using markdown in the commit message. If so, please remove it. Be sure to double-check the plain text shown in the Gerrit commit message above for any markdown backticks, markdown links, or other markdown formatting.
3. You usually need to reference a bug number for all but trivial or cosmetic fixes. For this repo, the format is usually 'Fixes #12345' or 'Updates #12345' at the end of the commit message. Should you have a bug reference?Please address any problems by updating the GitHub PR.
When complete, mark this comment as 'Done' and click the [blue 'Reply' button](https://go.dev/wiki/GerritBot#i-left-a-reply-to-a-comment-in-gerrit-but-no-one-but-me-can-see-it) above. These findings are based on heuristics; if a finding does not apply, briefly reply here saying so.
To update the commit title or commit message body shown here in Gerrit, you must edit the GitHub PR title and PR description (the first comment) in the GitHub web interface using the 'Edit' button or 'Edit' menu entry there. Note: pushing a new commit to the PR will not automatically update the commit message used by Gerrit.
For more details, see:
- [how to update commit messages](https://go.dev/wiki/GerritBot/#how-does-gerritbot-determine-the-final-commit-message) for PRs imported into Gerrit.
- the Go project's [conventions for commit messages](https://go.dev/doc/contribute#commit_messages) that you should follow.
(In general for Gerrit code reviews, the change author is expected to [log in to Gerrit](https://go-review.googlesource.com/login/) with a Gmail or other Google account and then close out each piece of feedback by marking it as 'Done' if implemented as suggested or otherwise reply to each review comment. See the [Review](https://go.dev/doc/contribute#review) section of the Contributing Guide for details.)
Done
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Gerrit Bot (Gerrit)
Gerrit Bot uploaded new patchset![]( "Open in Gerrit")
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Cherry Mui (Gerrit)
Cherry Mui voted![]( "Open in Gerrit")
| Code-Review | +2 |
| Commit-Queue | +1 |
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Tamir Duberstein (Gerrit)
Tamir Duberstein added 1 comment![]( "Open in Gerrit")
Tamir DubersteinI spotted some possible problems with your PR:
1. You have a long 108 character line in the commit message body. Please add line breaks to long lines that should be wrapped. Lines in the commit message body should be wrapped at ~76 characters unless needed for things like URLs or tables. (Note: GitHub might render long lines as soft-wrapped, so double-check in the Gerrit commit message shown above.)
2. It looks like you are using markdown in the commit message. If so, please remove it. Be sure to double-check the plain text shown in the Gerrit commit message above for any markdown backticks, markdown links, or other markdown formatting.
3. You usually need to reference a bug number for all but trivial or cosmetic fixes. For this repo, the format is usually 'Fixes #12345' or 'Updates #12345' at the end of the commit message. Should you have a bug reference?Please address any problems by updating the GitHub PR.
When complete, mark this comment as 'Done' and click the [blue 'Reply' button](https://go.dev/wiki/GerritBot#i-left-a-reply-to-a-comment-in-gerrit-but-no-one-but-me-can-see-it) above. These findings are based on heuristics; if a finding does not apply, briefly reply here saying so.
To update the commit title or commit message body shown here in Gerrit, you must edit the GitHub PR title and PR description (the first comment) in the GitHub web interface using the 'Edit' button or 'Edit' menu entry there. Note: pushing a new commit to the PR will not automatically update the commit message used by Gerrit.
For more details, see:
- [how to update commit messages](https://go.dev/wiki/GerritBot/#how-does-gerritbot-determine-the-final-commit-message) for PRs imported into Gerrit.
- the Go project's [conventions for commit messages](https://go.dev/doc/contribute#commit_messages) that you should follow.
(In general for Gerrit code reviews, the change author is expected to [log in to Gerrit](https://go-review.googlesource.com/login/) with a Gmail or other Google account and then close out each piece of feedback by marking it as 'Done' if implemented as suggested or otherwise reply to each review comment. See the [Review](https://go.dev/doc/contribute#review) section of the Contributing Guide for details.)
Done
Oh, apparently gerrit takes the commit message from the github PR body rather than my actual commit message? How strange. I will let you folks tell me which commit message you prefer.
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