Date: Wed, 8 Feb 2023 18:11:16 +0800 From: Zhenlei Huang <zlei@FreeBSD.org> To: Gary Jennejohn <garyj@gmx.de> Cc: freebsd-current@freebsd.org Subject: Re: kernel compile fails if device bpf is not enabled Message-ID: <71C09FDA-6109-470A-953A-258BC95376DC@FreeBSD.org> In-Reply-To: <20230208073249.4ccb5fb7@ernst.home> References: <20230207100812.76d206d4@ernst.home> <4FF5CEED-A667-455A-8BFC-960B50E8D93D@FreeBSD.org> <20230208073249.4ccb5fb7@ernst.home>
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[-- Attachment #1 --] > On Feb 8, 2023, at 2:32 PM, Gary Jennejohn <garyj@gmx.de> wrote: > > On Wed, 8 Feb 2023 12:49:46 +0800 > Zhenlei Huang <zlei@FreeBSD.org <mailto:zlei@FreeBSD.org>> wrote: > > Hi Zhenlei, > >> Thanks for the report! Post the fix to Phabricator https://reviews.freebsd.org/D38432 <https://reviews.freebsd.org/D38432>; <https://reviews.freebsd.org/D38432 <https://reviews.freebsd.org/D38432>>; . >> >> Best regards, >> Zhenlei >> > > Thanks! I see it's been accepted. Fixed in 9df6eeabb379 . > >>> On Feb 7, 2023, at 5:08 PM, Gary Jennejohn <garyj@gmx.de> wrote: >>> >>> I just saw this error today because I didn't have device bpf enabled in >>> my kernel configuration file: >>> >>> -------------------------------------------------------------- >>>>>> stage 3.1: building everything >>> -------------------------------------------------------------- >>> linking kernel.full >>> ld: error: undefined symbol: bpf_mtap_if >>>>>> referenced by if.c:4724 (/usr/src/sys/net/if.c:4724) >>>>>> if.o:(if_bpfmtap) >>>>>> referenced by if_tuntap.c:1717 (/usr/src/sys/net/if_tuntap.c:1717) >>>>>> if_tuntap.o:(tunread) >>>>>> referenced by if_vlan.c:1292 (/usr/src/sys/net/if_vlan.c:1292) >>>>>> if_vlan.o:(vlan_transmit) >>> >>> ld: error: undefined symbol: bpf_mtap2_if >>>>>> referenced by if_gif.c:323 (/usr/src/sys/net/if_gif.c:323) >>>>>> if_gif.o:(gif_transmit) >>>>>> referenced by if_tuntap.c:1816 (/usr/src/sys/net/if_tuntap.c:1816) >>>>>> if_tuntap.o:(tunwrite) >>> --- kernel.full --- >>> *** [kernel.full] Error code 1 >>> >>> This happens because a dummy bpf_mtap_if() (called a NOP stub in bpf.c) >>> isn't being defined if bpf is not enabled. >>> >>> -- >>> Gary Jennejohn >>> > > -- > Gary Jennejohn [-- Attachment #2 --] <html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Feb 8, 2023, at 2:32 PM, Gary Jennejohn <<a href="mailto:garyj@gmx.de" class="">garyj@gmx.de</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><meta charset="UTF-8" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">On Wed, 8 Feb 2023 12:49:46 +0800</span><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Zhenlei Huang <</span><a href="mailto:zlei@FreeBSD.org" style="font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" class="">zlei@FreeBSD.org</a><span style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">> wrote:</span><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Hi Zhenlei,</span><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><blockquote type="cite" style="font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;" class="">Thanks for the report! Post the fix to Phabricator<span class="Apple-converted-space"> </span><a href="https://reviews.freebsd.org/D38432" class="">https://reviews.freebsd.org/D38432</a><span class="Apple-converted-space"> </span><<a href="https://reviews.freebsd.org/D38432" class="">https://reviews.freebsd.org/D38432</a>> .<br class=""><br class="">Best regards,<br class="">Zhenlei<br class=""><br class=""></blockquote><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Thanks! I see it's been accepted.</span><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""></div></blockquote><div><br class=""></div><div>Fixed in 9df6eeabb379 .</div><br class=""><blockquote type="cite" class=""><div class=""><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><blockquote type="cite" style="font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><blockquote type="cite" class="">On Feb 7, 2023, at 5:08 PM, Gary Jennejohn <<a href="mailto:garyj@gmx.de" class="">garyj@gmx.de</a>> wrote:<br class=""><br class="">I just saw this error today because I didn't have device bpf enabled in<br class="">my kernel configuration file:<br class=""><br class="">--------------------------------------------------------------<br class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class="">stage 3.1: building everything<br class=""></blockquote></blockquote></blockquote>--------------------------------------------------------------<br class="">linking kernel.full<br class="">ld: error: undefined symbol: bpf_mtap_if<br class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class="">referenced by if.c:4724 (/usr/src/sys/net/if.c:4724)<br class=""> if.o:(if_bpfmtap)<br class="">referenced by if_tuntap.c:1717 (/usr/src/sys/net/if_tuntap.c:1717)<br class=""> if_tuntap.o:(tunread)<br class="">referenced by if_vlan.c:1292 (/usr/src/sys/net/if_vlan.c:1292)<br class=""> if_vlan.o:(vlan_transmit)<br class=""></blockquote></blockquote></blockquote><br class="">ld: error: undefined symbol: bpf_mtap2_if<br class=""><blockquote type="cite" class=""><blockquote type="cite" class=""><blockquote type="cite" class="">referenced by if_gif.c:323 (/usr/src/sys/net/if_gif.c:323)<br class=""> if_gif.o:(gif_transmit)<br class="">referenced by if_tuntap.c:1816 (/usr/src/sys/net/if_tuntap.c:1816)<br class=""> if_tuntap.o:(tunwrite)<br class=""></blockquote></blockquote></blockquote>--- kernel.full ---<br class="">*** [kernel.full] Error code 1<br class=""><br class="">This happens because a dummy bpf_mtap_if() (called a NOP stub in bpf.c)<br class="">isn't being defined if bpf is not enabled.<br class=""><br class="">--<br class="">Gary Jennejohn<br class=""><br class=""></blockquote></blockquote><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">--</span><br style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none;" class=""><span style="caret-color: rgb(0, 0, 0); font-family: Menlo-Regular; font-size: 13px; font-style: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; text-decoration: none; float: none; display: inline !important;" class="">Gary Jennejohn</span></div></blockquote></div><div class=""><br class=""> </div> <br class=""></body></html>help
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