Dear contributor,

Our automatic CI has detected problems related to your patch(es). Please find 
some details below.

In bootstrap_check master-aarch64-check_bootstrap, after:
  | commit gcc-17-3013-gcad654efbba6
  | Author: Josef Melcr <[email protected]>
  | Date:   Mon Jul 27 16:18:54 2026 +0200
  | 
  |     Add the callback_only attribute.
  |     
  |     This patch allows the callback attribute to be used in user programs
  |     under the name 'callback_only'.   It moves the attribute handler into
  |     c-attribs.cc and renames some of the identifiers from callback to
  | ... 61 lines of the commit log omitted.

Produces 15 regressions:
  | 
  | regressions.sum:
  | Running gcc:gcc.dg/dg.exp ...
  | FAIL: gcc.dg/attr-callback.c (test for errors, line 52)
  | FAIL: gcc.dg/attr-callback.c (test for errors, line 56)
  | FAIL: gcc.dg/attr-callback.c (test for errors, line 60)
  | FAIL: gcc.dg/attr-callback.c (test for errors, line 64)
  | ... and 11 more

Used configuration :
 *CI config* tcwg_bootstrap_check master-aarch64-check_bootstrap
 *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu

We track this bug report under https://linaro.atlassian.net/browse/GNU-1989. 
(Require Linaro login) Please let us know if you have a fix.

If you have any questions regarding this report, please ask on 
[email protected] mailing list.

-----------------8<--------------------------8<--------------------------8<--------------------------

The information below contains the details of the failures, and the ways to 
reproduce a debug environment:

You can find the failure logs in *.log.1.xz files in
 * 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10210/archive/artifacts/00-sumfiles/
The full lists of regressions and improvements as well as configure and make 
commands are in
 * 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10210/archive/artifacts/notify/
The list of [ignored] baseline and flaky failures are in
 * 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10210/archive/artifacts/sumfiles/xfails.xfail

Current build   : 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10210/archive/artifacts/
Reference build : 
http://54.172.246.49:9090/jobs/tcwg_bootstrap_check--master-aarch64-check_bootstrap-build/builds/10209/archive/artifacts/

Instruction to reproduce the build : 
https://gitlab.com/LinaroLtd/tcwg/ci/interesting-commits/-/raw/master/gcc/sha1/cad654efbba62da3d98d9ca6a4c1658fcd47ffb4/tcwg_bootstrap_check/master-aarch64-check_bootstrap/reproduction_instructions.txt

Full commit : See in git+ssh://[email protected]/git/gcc.git

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