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[213.209.99.202]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c46bd35004asm129678666b.4.2026.10.24.14.50.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 24 Oct 2026 14:50:10 -0700 (PDT) From: Yegor Yefremov To: buildroot@buildroot.org Date: Sat, 24 Oct 2026 23:50:09 +0200 Message-Id: <20261024215009.1004860-2-yegorslists@googlemail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261024215009.1004860-1-yegorslists@googlemail.com> References: <20261024215009.1004860-1-yegorslists@googlemail.com> X-Archived-By: MIME-Version: 1.0 Subject: [Buildroot] [PATCH 2/2] package/openssh: fix build on MIPS before R6 at -O0 X-BeenThere: buildroot@buildroot.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Discussion and development of buildroot List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Giulio Benetti , Romain Naour , Thomas Petazzoni Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "buildroot" X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_EF, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_PASS, USER_AGENT_GIT,WEIRD_PORT autolearn=ham autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 openssh fails to build on MIPS64 (n32/n64 ABI) before R6 with BR2_OPTIMIZE_0: during RTL pass: zero_call_used_regs channels.c: In function 'channel_set_xtype': channels.c:437:1: internal compiler error: in int_mode_for_mode, at stor-layout.cc:408 Since version 9.6p1, openssh builds with -fzero-call-used-regs=used if the compiler supports it. On MIPS before R6, gcc rejects this option or ICEs on functions using the hi/lo registers (gcc bug 104820). The configure check usually catches this, but at -O0 its test program builds fine with n32/n64, so the option ends up being used. Disable -fzero-call-used-regs on MIPS before R6, through the configure cache variable already used for powerpc64le. This doesn't lose anything, as the option is never usable there. This issue has been present since commit 3c047ea463e2 ("package/openssh: security bump to version 9.6p1"), which switched from -fzero-call-used-regs=all (always rejected by the configure check on MIPS before R6) to -fzero-call-used-regs=used. It therefore affects 2024.02 and later, including all maintained branches. The cache variable only exists since openssh 10.1, so for branches with an older openssh, --without-hardening would be needed instead. Fixes: https://autobuild.buildroot.org/results/68d260341341afb0dfb7244f641f5196df3649a8 Fixes: 3c047ea463e27ceaafde76d64406862c3322daa0 ("package/openssh: security bump to version 9.6p1") Assisted-by: Claude:claude-opus-5-5 Signed-off-by: Yegor Yefremov --- package/openssh/openssh.mk | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/package/openssh/openssh.mk b/package/openssh/openssh.mk index 6808db9962..a0cd3168e0 100644 --- a/package/openssh/openssh.mk +++ b/package/openssh/openssh.mk @@ -36,7 +36,9 @@ define OPENSSH_PERMISSIONS /var/empty d 755 root root - - - - - endef -ifeq ($(BR2_powerpc64le),y) +# -fzero-call-used-regs=used is not supported on powerpc64le and makes +# gcc ICE on MIPS before R6 +ifneq ($(BR2_powerpc64le)$(BR2_TOOLCHAIN_HAS_GCC_BUG_104820),) OPENSSH_CONF_ENV += ossh_cv_cflag__fzero_call_used_regs_used=no endif -- 2.34.1 _______________________________________________ buildroot mailing list buildroot@buildroot.org https://lists.buildroot.org/mailman/listinfo/buildroot