Date: Sun, 8 Apr 2018 18:50:48 -0700 From: bob prohaska <fbsd@www.zefox.net> To: "Rodney W. Grimes" <freebsd-rwg@pdx.rh.CN85.dnsmgr.net> Cc: freebsd-current@freebsd.org Subject: Re: Module compiles looking in /usr/src when alternate src tree is in use Message-ID: <20180409015048.GB93747@www.zefox.net> In-Reply-To: <201804090040.w390et36016181@pdx.rh.CN85.dnsmgr.net> References: <20180408235308.GA93747@www.zefox.net> <201804090040.w390et36016181@pdx.rh.CN85.dnsmgr.net>
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On Sun, Apr 08, 2018 at 05:40:55PM -0700, Rodney W. Grimes wrote: > > On Sun, Apr 08, 2018 at 12:00:52PM -0700, Rodney W. Grimes wrote: > > > I am having a compile time issue for a patched that compiled fine on my > > > r329294 system, but now failes to compile with what looks like a wrong > > > header being included. > > > > > Might this be a cousin to the problem reported at > > https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227274 ? > > > > In that kernel compile (on an RPi3) the compiler complains > > > > In file included from /usr/src/sys/crypto/armv8/armv8_crypto_wrap.c:46: > > In file included from /usr/lib/clang/6.0.0/include/arm_neon.h:31: > > /usr/lib/clang/6.0.0/include/stdint.h:228:25: error: typedef redefinition with different types ('int16_t' (aka 'short') vs '__int_fast16_t' (aka 'int')) > > typedef __int_least16_t int_fast16_t; > > > > The reference to /usr/lib/clang/... seems a bit strange; isn't a major > > purpose of the kernel build procedure to minimize reliance on the > > host system's (already-stale) software? > > Are you building in /usr/src, or are your sources located some place else? > This is a straightforward self-hosted build on an RPi3. Sources are in /usr/src. There are no modifications to the source directories. > Really need the log that includes the cc command line, as that has the > tell tell -I/usr/src/sys in it. That component is totally bogus! At > no time should a src tree rooted at /usr/src-topo be trying to use files > from /usr/src/. > Should files _outside_ /usr/src or /usr/obj _ever_ be referenced during a world or kernel build? I thought the answer was "no". The line leading up to the error message is: --- armv8_crypto_wrap.o --- cc -target aarch64-unknown-freebsd12.0 --sysroot=/usr/obj/usr/src/arm64.aarch6 4/tmp -B/usr/obj/usr/src/arm64.aarch64/tmp/usr/bin -c -O3 -pipe -fno-strict-al iasing -Werror -D_KERNEL -DKLD_MODULE -DHAVE_KERNEL_OPTION_HEADERS -include /u sr/obj/usr/src/arm64.aarch64/sys/GENERIC-NODEBUG/opt_global.h -I. -I/usr/src/s ys -fno-common -g -fPIC -I/usr/obj/usr/src/arm64.aarch64/sys/GENERIC-NODEBUG - ffixed-x18 -ffreestanding -fwrapv -fstack-protector -gdwarf-2 -Wall -Wredundan t-decls -Wnested-externs -Wstrict-prototypes -Wmissing-prototypes -Wpointer-ar ith -Winline -Wcast-qual -Wundef -Wno-pointer-sign -D__printf__=__freebsd_kpri ntf__ -Wmissing-include-dirs -fdiagnostics-show-option -Wno-unknown-pragmas -W no-error-tautological-compare -Wno-error-empty-body -Wno-error-parentheses-equ ality -Wno-error-unused-function -Wno-error-pointer-sign -Wno-error-shift-nega tive-value -Wno-error-address-of-packed-member -std=iso9899:1999 -Werror -m arch=armv8-a+crypto /usr/src/sys/crypto/armv8/armv8_crypto_wrap.c In file included from /usr/src/sys/crypto/armv8/armv8_crypto_wrap.c:46: In file included from /usr/lib/clang/6.0.0/include/arm_neon.h:31: There's a "-I/usr/src/sys" in the fourth line, which in my case makes sense, but where does the reference to /usr/lib/clang/.... come from, and is it appropriate? > > If the two problems are related, should the subject line on the bug > > report be changed? > > It could be, but more info would be needed. > Please let me know what additional information is needed. Thanks for reading, bob prohaska
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