[SMOKE] turn on -fuse-emissary-print so printf n format works#2322
Merged
Conversation
ronlieb
approved these changes
Jul 7, 2026
This file contains hidden or 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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Motivation
The printf in libc does not work with %n format specification.
But it does work with emissary printf. In the new emissary support the default for printf and fprintf will be libc.
To use emissary print, user must opt in.
Technical Details
The option -fuse-emissary-print will be needed to opt-in.
Test Plan
The command line option -fuse-emissary-print is not the default so it must be turned on when that option exists.
Test Result
Submission Checklist