From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtpcmd01-sp1.aruba.it (smtpcmd01-sp1.aruba.it [62.149.158.218]) (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 DBB72F4FA for ; Tue, 10 Feb 2026 18:04:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=62.149.158.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770746663; cv=none; b=SzuG+usayw7mh/u2NvGw1ueGkdnMvuJloTGB6ByY0NYjnCAdmP+nNPPnlsScCnci6bzlGrjXpI1c+yKs+wuAI34RAEJRqdguJfK/zWMyEuhONJ59/Q+cWC30TZTSpgr3ww29cSKPKUT3vs3K3VLfQkBQ2Me2XlMd0aCVWUHEbNM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1770746663; c=relaxed/simple; bh=LuW92WQ632JkuU68lkNBwO+oxWU1vFdBNgbepeSRw18=; h=Content-Type:Message-ID:Date:MIME-Version:Subject:To:Cc: References:From:In-Reply-To; b=GymrWXGMaFmubyTcEhUUysH5SAhVKHLfX+gsgQo2hommdn7+zZpU1a1GguhGNZgwZpC58oXqWdDi32zSM/6WU2FfLXNlcZd5cKxjSXg51rA/e5fSnDEan2cAaWY6wGwAfVFWpPaQwGSGb/Hiot26KIG79YwdZQIE6iYjZ/EJZGQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=benettiengineering.com; spf=pass smtp.mailfrom=benettiengineering.com; dkim=pass (2048-bit key) header.d=aruba.it header.i=@aruba.it header.b=mkvzKea0; arc=none smtp.client-ip=62.149.158.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=benettiengineering.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=benettiengineering.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=aruba.it header.i=@aruba.it header.b="mkvzKea0" Received: from [192.168.50.220] ([84.33.84.190]) by Aruba SMTP with ESMTPSA id ps2wvNaDKnDG4ps2xvbQQl; Tue, 10 Feb 2026 19:01:11 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=aruba.it; s=a1; t=1770746471; bh=LuW92WQ632JkuU68lkNBwO+oxWU1vFdBNgbepeSRw18=; h=Content-Type:Date:MIME-Version:Subject:To:From; b=mkvzKea0lcfbxO1rsGB198XYILab3OZWJFjg29s16+acW7YMYy8dkHgaeKGCsvg/v csHSmjd1oklgZ1fCEZdBLj8G+gRLiMPajwHbJPoQLdKevw5HfdltY704ItjD8Pf7m2 q53F2hbaLITPCZIgGlMghs94NHkX8kQwKZ3v6TA5kuMOOFZv1yiGlSolBmiPdGvGHR Sllaj2DuxuAKvcm+gdNVHqCqE725el8ZO1+NzXk3wYraIRFaZYH03bxmSytSSsC1iW JlWrbM0gdpY94Wb2Tc+AYaAYGibJc+DNdJkG80WVverbtMpxydJxuuMRGCXdF3vGO1 TqjPkeSi0L4/Q== Content-Type: multipart/mixed; boundary="------------iA6saKj2C0zdqgTDp9kwVcVT" Message-ID: Date: Tue, 10 Feb 2026 19:01:10 +0100 Precedence: bulk X-Mailing-List: linux-trace-devel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: Build failure bft for trace-cmd and libtraceevent To: Steven Rostedt Cc: linux-trace-devel@vger.kernel.org References: <20260208170123.37d468a0@robin> <406EA18E-BDD3-4204-A58F-B7F04450FA9F@benettiengineering.com> <20260208172234.3a181553@robin> Content-Language: en-US From: Giulio Benetti In-Reply-To: <20260208172234.3a181553@robin> X-CMAE-Envelope: MS4xfHJP1RxYK3o2jXQoEMFyogGNaPVjyFcAA3oFSG8552yzoDTrmLPPwhAOnFLEazaKx45pzQ95xoMqyUXJbhCJTX4iMJ8KbFKRk+ESko/TpEdJrDWTX2X4 EUvdtfkdFX6aGBxkJTcUJw1AvIHN9Nvd6lNBL7zSKbE0XSxFpigg4e6y5ICSTz9jomiwryJ8ukyFwgorlboCMOrxjnvy0liGUc46TCllLCLHh7jSkX0wv9px YRJlGlojT9xyF9PDyVGa4xnyqFzDKz5JeCXDrT+z1sM= This is a multi-part message in MIME format. --------------iA6saKj2C0zdqgTDp9kwVcVT Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit Hi Steve, On 2/8/26 23:22, Steven Rostedt wrote: > On Sun, 8 Feb 2026 23:14:32 +0100 > Giulio Benetti wrote: > >> Oh, ok. I’m going to follow that commit and add btf option to disable btf to trace-cmd too. >> At the moment it only checks for libtraceevent version and that won’t be sufficient. > > I don't think you need to change trace-cmd. We can just make the > tep_btf_print_args() just print the arguments passed in if it is not > supported, it is not that clear to me here > and have the list_args just fail. Ok. Attached you find a patch to be tested. Giulio > > Here's an update to the libtraceevent Makefile to do this. Will need > something similar for the meson build. > > -- Steve > > diff --git a/Makefile b/Makefile > index e1a10a02a560..bd88a981d373 100644 > --- a/Makefile > +++ b/Makefile > @@ -27,6 +27,13 @@ $(call allow-override,PKG_CONFIG,pkg-config) > $(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/) > $(call allow-override,LDCONFIG,ldconfig) > > +# Set compile option CFLAGS > +ifdef EXTRA_CFLAGS > + CFLAGS ?= $(EXTRA_CFLAGS) > +else > + CFLAGS ?= -g -Wall > +endif > + > EXT = -std=gnu99 > INSTALL = install > > @@ -37,6 +44,20 @@ INSTALL = install > DESTDIR ?= > DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))' > > +test-build = $(if $(shell sh -c 'echo "$(1)" | tee /tmp/t.c| \ > + $(CC) -o /dev/null -x c - > /dev/null 2>&1 && echo y'), $2) > + > +define BTF_LATEST_SOURCE > +#include > +int main(void) { return BTF_KIND_ENUM64; } > +endef > + > +BTF_OK := $(call test-build,$(BTF_LATEST_SOURCE),y) > + > +ifneq ($(strip $(BTF_OK)), y) > +CFLAGS += -DNO_BTF > +endif > + > LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1) > ifeq ($(LP64), 1) > libdir_relative_temp = lib64 > @@ -123,13 +144,6 @@ INCLUDES = -I. -I $(srctree)/include -I $(EP_HEADERS_DIR) $(CONFIG_INCLUDES) > > export LIBTRACEEVENT_STATIC LIBTRACEEVENT_SHARED EP_HEADERS_DIR > > -# Set compile option CFLAGS > -ifdef EXTRA_CFLAGS > - CFLAGS := $(EXTRA_CFLAGS) > -else > - CFLAGS := -g -Wall > -endif > - > LIBS ?= -ldl > export LIBS > --------------iA6saKj2C0zdqgTDp9kwVcVT Content-Type: text/x-patch; charset=UTF-8; name="0001-Fix-build-failure-due-to-btf-on-Linux-6.0.patch" Content-Disposition: attachment; filename="0001-Fix-build-failure-due-to-btf-on-Linux-6.0.patch" Content-Transfer-Encoding: base64 RnJvbSBlMTQxMzllNjNiNjhlY2NkMjgwMDQwNmM0ZjVhZDA0OTAxNWE4Y2Y2IE1vbiBTZXAg MTcgMDA6MDA6MDAgMjAwMQpGcm9tOiBHaXVsaW8gQmVuZXR0aSA8Z2l1bGlvLmJlbmV0dGlA YmVuZXR0aWVuZ2luZWVyaW5nLmNvbT4KRGF0ZTogVHVlLCAxMCBGZWIgMjAyNiAxNzo1Nzo1 MiArMDEwMApTdWJqZWN0OiBbUEFUQ0hdIEZpeCBidWlsZCBmYWlsdXJlIGR1ZSB0byBidGYg 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