Date: Tue, 23 Oct 2018 16:48:15 +0300 From: Yuri Pankov <yuripv@yuripv.net> To: lev@FreeBSD.org, Ryan Stone <rysto32@gmail.com> Cc: freebsd-hackers@freebsd.org Subject: Re: What is wrong with dtrace's stack()? Message-ID: <27f7681e-7870-ae21-0563-2f31e58d1603@yuripv.net> In-Reply-To: <5bbf4ebe-c62a-3c6d-617f-d1c832d87cf5@FreeBSD.org> References: <170994671.20181021201021@serebryakov.spb.ru> <CAG6CVpVCe-8OVU%2BKEyAh8swFSAjRshNcNLN0tjAS3W8bZxyrTA@mail.gmail.com> <475670271.20181022003734@serebryakov.spb.ru> <CAOtMX2goztCYJXM72WNR711DEBEKAGk1zFHF=NpE4UiVAF2bAQ@mail.gmail.com> <234d745d-37a9-9610-15b9-0f5cd5af21bf@FreeBSD.org> <b30f2080-1037-1752-60fb-6d22e28ce90d@FreeBSD.org> <CAFMmRNz35Ay82NcMnUkSAvpyU5p2m9ykiji1xXcbEanH9A2H%2Bw@mail.gmail.com> <5bbf4ebe-c62a-3c6d-617f-d1c832d87cf5@FreeBSD.org>
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Lev Serebryakov wrote: > On 22.10.2018 23:50, Ryan Stone wrote: > >> Adding -fno-optimize-sibling-calls to the compiler flags will eliminate the TCO. > How could I add it for kernel properly?! Adding > "CFLAGS=-fno-optimize-sibling-calls" to make.conf affects modules build, > but not kernel itself (I'm surprised, to be honest). Try using: COPTFLAGS+= -fno-optimize-sibling-calls
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