From nobody Sun Jun 14 17:36:48 2026 Received: from todd.t-8ch.de (todd.t-8ch.de [159.69.126.157]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 40854223DEA for ; Sat, 4 Apr 2026 12:59:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=159.69.126.157 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775307548; cv=none; b=RThuisO7U1oVHktt3r0WUEGpk6oajVrmC3q3NPxxaChA9gwYJ3Cs75gIzsMeiB+Cjo0Y4xuxyOCnz/ZHp6yJuQ15zshnl44t/M1T9agMmmJOuuZU88clSTqB5bgsLn93BGHvJpTSBSRfZNrfLyO9gQGaGucOf3pXYjjQICfIWCU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1775307548; c=relaxed/simple; bh=YsodOYizm1Eclt3X+BKSoajg9e9R5W5I8XqzDv2sQ1Y=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=VSIS0vhlHQuO8LGtI9SsamKSpKJq3DaVYXvKNRLF8sPXoapecG+fzD1PRceTjXkOJYc/6/ICTI0VACZTOPgWK08pXj4Xa0CC5jGYYxpXg/iytcRITBb+1dBBmogLI/F8/NEtJ07rlY2jzRJzyKRLki8U37QwGGx146bLjj7+HR8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net; spf=pass smtp.mailfrom=weissschuh.net; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b=Etq1ffWA; arc=none smtp.client-ip=159.69.126.157 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=weissschuh.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=weissschuh.net header.i=@weissschuh.net header.b="Etq1ffWA" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=weissschuh.net; s=mail; t=1775307545; bh=YsodOYizm1Eclt3X+BKSoajg9e9R5W5I8XqzDv2sQ1Y=; h=From:Date:Subject:To:Cc:From; b=Etq1ffWAnjmJvQNj0gNtx7JtzHtrLJL+5bqPMZJmLHyZayHG6eAjdjMxNs9R2z5Vd R8UmfE/ALidJmbV8taly81RM79EfWm1gzZC5VAFIMIUINqHFxLwCMXX4LyiAwFvWXO P5pbNWgvnqZC+6HeDvWHGeugCIT2KbrQatPL2dBQ= From: =?utf-8?q?Thomas_Wei=C3=9Fschuh?= Date: Sat, 04 Apr 2026 14:59:03 +0200 Subject: [PATCH] selftests/nolibc: only use libgcc when really necessary Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260404-nolibc-libgcc-v1-1-eb3ecfe0e176@weissschuh.net> X-B4-Tracking: v=1; b=H4sIAAAAAAAC/yXMQQ5AMBCF4avIrDUpaS1cRSzMmDIiJS0iEXdXb F7yLd5/QeQgHKHOLgh8SJTFJxR5BjR2fmAlfTKUuqy00Ub5ZRYklWYgUowWqUKyzllInzWwk/P rNe3vuOPEtL0RuO8H8tJ5NXEAAAA= X-Change-ID: 20260404-nolibc-libgcc-eb5bc6bc5ff5 To: Willy Tarreau Cc: linux-kernel@vger.kernel.org, =?utf-8?q?Thomas_Wei=C3=9Fschuh?= X-Mailer: b4 0.15.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1775307544; l=1961; i=linux@weissschuh.net; s=20221212; h=from:subject:message-id; bh=YsodOYizm1Eclt3X+BKSoajg9e9R5W5I8XqzDv2sQ1Y=; b=BeFcFmsWk89yFPJcbGuztF3S7vSGFOyQqoKZaREeH1DdVeGUQRzYN9RNRVcT6shN53PwCV5tD Ez0aoqW6h7bDA5h7C4mhnl7hk3Kez/W9jgrF/yxGHnlGclGlNW1Mb/J X-Developer-Key: i=linux@weissschuh.net; a=ed25519; pk=KcycQgFPX2wGR5azS7RhpBqedglOZVgRPfdFSPB1LNw= nolibc should work without libgcc to be compatible with as many toolchains as possible. Currently the functionality tested by nolibc-test does not contain any dependencies, make sure it stays this way by not linking libgcc anymore. On the ppc target GCC always emits references to '_restgpr_' functions, so keep linking libgcc there. Signed-off-by: Thomas Wei=C3=9Fschuh Acked-by: Willy Tarreau --- tools/testing/selftests/nolibc/Makefile.nolibc | 17 ++++------------- 1 file changed, 4 insertions(+), 13 deletions(-) diff --git a/tools/testing/selftests/nolibc/Makefile.nolibc b/tools/testing= /selftests/nolibc/Makefile.nolibc index 2d32cec1105f..f30bc68470cc 100644 --- a/tools/testing/selftests/nolibc/Makefile.nolibc +++ b/tools/testing/selftests/nolibc/Makefile.nolibc @@ -232,23 +232,14 @@ ifeq ($(origin XARCH),command line) CFLAGS_XARCH =3D $(CFLAGS_$(XARCH)) endif =20 +LDLIBS_ppc =3D $(if $(LLVM),,-lgcc) +LDLIBS =3D $(LDLIBS_$(XARCH)) + include Makefile.include =20 CFLAGS ?=3D $(CFLAGS_NOLIBC_TEST) $(CFLAGS_XARCH) $(CFLAGS_EXTRA) LDFLAGS :=3D =20 -LIBGCC :=3D -lgcc - -ifeq ($(ARCH),x86) -# Not needed on x86, probably not present for x32 -LIBGCC :=3D -endif - -ifneq ($(LLVM),) -# Not needed for clang -LIBGCC :=3D -endif - # Modify CFLAGS based on LLVM=3D include $(srctree)/tools/scripts/Makefile.include =20 @@ -304,7 +295,7 @@ sysroot/$(ARCH)/include: =20 nolibc-test: $(NOLIBC_TEST_SOURCES) sysroot/$(ARCH)/include $(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \ - -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include $(NOLIBC_TEST_SOU= RCES) $(LIBGCC) + -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include $(NOLIBC_TEST_SOU= RCES) $(LDLIBS) =20 libc-test: $(NOLIBC_TEST_SOURCES) $(QUIET_CC)$(HOSTCC) -o $@ $(NOLIBC_TEST_SOURCES) --- base-commit: 4b31f409c33f6661a72f52b90b6a61c9bd7034ad change-id: 20260404-nolibc-libgcc-eb5bc6bc5ff5 Best regards, -- =20 Thomas Wei=C3=9Fschuh