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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--Apple-Mail=_A744D2AE-F7A7-49D6-9296-9BE984BE4D83 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii > On Feb 8, 2023, at 2:32 PM, Gary Jennejohn <garyj@gmx.de> wrote: >=20 > On Wed, 8 Feb 2023 12:49:46 +0800 > Zhenlei Huang <zlei@FreeBSD.org <mailto:zlei@FreeBSD.org>> wrote: >=20 > Hi Zhenlei, >=20 >> 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>>; . >>=20 >> Best regards, >> Zhenlei >>=20 >=20 > Thanks! I see it's been accepted. Fixed in 9df6eeabb379 . >=20 >>> On Feb 7, 2023, at 5:08 PM, Gary Jennejohn <garyj@gmx.de> wrote: >>>=20 >>> I just saw this error today because I didn't have device bpf enabled = in >>> my kernel configuration file: >>>=20 >>> -------------------------------------------------------------- >>>>>> 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) >>>=20 >>> 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 >>>=20 >>> This happens because a dummy bpf_mtap_if() (called a NOP stub in = bpf.c) >>> isn't being defined if bpf is not enabled. >>>=20 >>> -- >>> Gary Jennejohn >>>=20 >=20 > -- > Gary Jennejohn --Apple-Mail=_A744D2AE-F7A7-49D6-9296-9BE984BE4D83 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii <html><head><meta http-equiv=3D"Content-Type" content=3D"text/html; = charset=3Dus-ascii"></head><body style=3D"word-wrap: break-word; = -webkit-nbsp-mode: space; line-break: after-white-space;" class=3D""><br = class=3D""><div><br class=3D""><blockquote type=3D"cite" class=3D""><div = class=3D"">On Feb 8, 2023, at 2:32 PM, Gary Jennejohn <<a = href=3D"mailto:garyj@gmx.de" class=3D"">garyj@gmx.de</a>> = wrote:</div><br class=3D"Apple-interchange-newline"><div class=3D""><meta = charset=3D"UTF-8" class=3D""><span style=3D"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=3D"">On Wed, 8 Feb 2023 12:49:46 +0800</span><br = style=3D"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=3D""><span style=3D"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=3D"">Zhenlei Huang = <</span><a href=3D"mailto:zlei@FreeBSD.org" style=3D"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=3D"">zlei@FreeBSD.org</a><span = style=3D"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=3D"">> = wrote:</span><br style=3D"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=3D""><br style=3D"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=3D""><span style=3D"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=3D"">Hi = Zhenlei,</span><br style=3D"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=3D""><br style=3D"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=3D""><blockquote type=3D"cite" style=3D"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=3D"">Thanks = for the report! Post the fix to Phabricator<span = class=3D"Apple-converted-space"> </span><a = href=3D"https://reviews.freebsd.org/D38432" = class=3D"">https://reviews.freebsd.org/D38432</a><span = class=3D"Apple-converted-space"> </span><<a = href=3D"https://reviews.freebsd.org/D38432" = class=3D"">https://reviews.freebsd.org/D38432</a>> .<br class=3D""><br = class=3D"">Best regards,<br class=3D"">Zhenlei<br class=3D""><br = class=3D""></blockquote><br style=3D"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=3D""><span style=3D"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=3D"">Thanks! I see it's been accepted.</span><br = style=3D"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=3D""></div></blockquote><div><br class=3D""></div><div>Fixed = in 9df6eeabb379 .</div><br class=3D""><blockquote type=3D"cite" = class=3D""><div class=3D""><br style=3D"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=3D""><blockquote type=3D"cite" = style=3D"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=3D""><blockquote type=3D"cite" class=3D"">On= Feb 7, 2023, at 5:08 PM, Gary Jennejohn <<a = href=3D"mailto:garyj@gmx.de" class=3D"">garyj@gmx.de</a>> wrote:<br = class=3D""><br class=3D"">I just saw this error today because I didn't = have device bpf enabled in<br class=3D"">my kernel configuration = file:<br class=3D""><br = class=3D"">--------------------------------------------------------------<= br class=3D""><blockquote type=3D"cite" class=3D""><blockquote = type=3D"cite" class=3D""><blockquote type=3D"cite" class=3D"">stage 3.1: = building everything<br = class=3D""></blockquote></blockquote></blockquote>------------------------= --------------------------------------<br class=3D"">linking = kernel.full<br class=3D"">ld: error: undefined symbol: bpf_mtap_if<br = class=3D""><blockquote type=3D"cite" class=3D""><blockquote type=3D"cite" = class=3D""><blockquote type=3D"cite" class=3D"">referenced by if.c:4724 = (/usr/src/sys/net/if.c:4724)<br = class=3D""> &nb= sp; if.o:(if_bpfmtap)<br class=3D"">referenced by if_tuntap.c:1717 = (/usr/src/sys/net/if_tuntap.c:1717)<br = class=3D""> &nb= sp; if_tuntap.o:(tunread)<br class=3D"">referenced by = if_vlan.c:1292 (/usr/src/sys/net/if_vlan.c:1292)<br = class=3D""> &nb= sp; if_vlan.o:(vlan_transmit)<br = class=3D""></blockquote></blockquote></blockquote><br class=3D"">ld: = error: undefined symbol: bpf_mtap2_if<br class=3D""><blockquote = type=3D"cite" class=3D""><blockquote type=3D"cite" class=3D""><blockquote = type=3D"cite" class=3D"">referenced by if_gif.c:323 = (/usr/src/sys/net/if_gif.c:323)<br = class=3D""> &nb= sp; if_gif.o:(gif_transmit)<br class=3D"">referenced by = if_tuntap.c:1816 (/usr/src/sys/net/if_tuntap.c:1816)<br = class=3D""> &nb= sp; if_tuntap.o:(tunwrite)<br = class=3D""></blockquote></blockquote></blockquote>--- kernel.full ---<br = class=3D"">*** [kernel.full] Error code 1<br class=3D""><br = class=3D"">This happens because a dummy bpf_mtap_if() (called a NOP stub = in bpf.c)<br class=3D"">isn't being defined if bpf is not enabled.<br = class=3D""><br class=3D"">--<br class=3D"">Gary Jennejohn<br = class=3D""><br class=3D""></blockquote></blockquote><br = style=3D"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=3D""><span style=3D"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=3D"">--</span><br = style=3D"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=3D""><span style=3D"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=3D"">Gary = Jennejohn</span></div></blockquote></div><div class=3D""><br class=3D""> </div> <br class=3D""></body></html>= --Apple-Mail=_A744D2AE-F7A7-49D6-9296-9BE984BE4D83--
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