New subject: [Linaro-TCWG-CI] gcc patch #142457: 2 regressions on aarch64

1 Sep 2026


      Hello Linaro CI Team,
This looks unrelated to the patch. It only defines LINK_SSP_SPEC  inside the DEFAULT_LIBC == LIBC_MUSL block of gcc/config/linux.h
  plus two rs6000 headers, so nothing from it is compiled into an aarch64-linux-gnu build. To be sure I built aarch64-linux-gnu
  cross compilers from master with and without the patch using the same configure flags as this CI, and xgcc -dumpspecs output is
  byte-identical, while the same tree targeted at aarch64-linux-musl does show the new -lssp_nonshared spec.
The failing test is a gcov prime-paths count, and the build's own results.compare.txt says
  "No regression found in 3 common sum files". Happy to dig further if anyone sees a connection I am missing.
Thanks,
Sunil Dora
________________________________
From: ci_notify@linaro.org ci_notify@linaro.org
Sent: Tuesday, September 1, 2026 10:48 AM
To: Dora, Sunil Kumar SunilKumar.Dora@windriver.com
Cc: raj.khem@gmail.com raj.khem@gmail.com
Subject: [Linaro-TCWG-CI] gcc patch #142457: 2 regressions on aarch64
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Dear contributor,
Our automatic CI has detected problems related to your patch(es). Please find some details below.
In  aarch64 native, after:
  | gcc patch https://patchwork.sourceware.org/patch/142457
  | Author: Khem Raj raj.khem@gmail.com
  | Date:   Sun Aug 30 22:15:06 2026 +0530
  |
  |     [PATCH v2] Add ssp_nonshared to link commandline for musl targets [PR127138]
  |
  |     musl provides __stack_chk_fail in libc but, unlike glibc, not the
  |     __stack_chk_fail_local alias that gcc calls in PIC/PIE code on some
  |     targets (32-bit x86, PowerPC). musl-based distributions ship that
  | ... 20 lines of the commit log omitted.
  | ... applied on top of baseline commit:
  | 2c3724c84c1 Daily bump.
Produces 2 regressions:
  |
  | regressions.sum:
  | Running gcc:gcc.misc-tests/gcov.exp ...
  | FAIL: gcc.misc-tests/gcov-39.c gcov: 0 failures in line counts, 0 in branch percentages, 0 in condition/decision, 1 in prime-paths, 0 in return percentages, 0 in intermediate format, 0 failed in filters
  | FAIL: gcc.misc-tests/gcov-39.c line 175: expected 1/8 covered paths, was 1/7
Used configuration :
 *CI config* tcwg_gcc_check aarch64-linux-gnu
 *configure and test flags:* none, autodetected on aarch64-unknown-linux-gnu--disable-multilib --enable-fix-cortex-a53-835769 --enable-fix-cortex-a53-843419 --with-arch=armv8-a
If you have any questions regarding this report, please ask on linaro-toolchain@lists.linaro.org 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_gcc_check--master-aarch64-precommit/buil...
The full lists of regressions and improvements as well as configure and make commands are in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-precommit/buil...
The list of [ignored] baseline and flaky failures are in
 * http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-precommit/buil...
Current build   : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-precommit/buil...
Reference build : http://54.172.246.49:9090/jobs/tcwg_gcc_check--master-aarch64-build/builds/1...
Warning: we do not enable maintainer-mode nor automatically update
generated files, which may lead to failures if the patch modifies the
master files.

Re: [Linaro-TCWG-CI] gcc patch #142457: 2 regressions on aarch64