Date: Sat, 18 Sep 2010 08:30:51 -0700 From: Garrett Cooper <gcooper@FreeBSD.org> To: "Robert N. M. Watson" <rwatson@freebsd.org> Cc: freebsd-hackers@freebsd.org, Fabian Keil <freebsd-listen@fabiankeil.de> Subject: Re: zfs + uma Message-ID: <AANLkTimyBMBM1Bfyz3RjQRoUkEeSPuLEZDb6ws0_XQ-o@mail.gmail.com> In-Reply-To: <F100D77A-CE16-40DE-B441-02E702B12686@FreeBSD.org> References: <4C93236B.4050906@freebsd.org> <4C935F56.4030903@freebsd.org> <alpine.BSF.2.00.1009181221560.86826@fledge.watson.org> <20100918143516.3568f40e@r500.local> <F100D77A-CE16-40DE-B441-02E702B12686@FreeBSD.org>
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--00504501751940c0ea04908a5de9 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable On Sat, Sep 18, 2010 at 6:52 AM, Robert N. M. Watson <rwatson@freebsd.org> wrote: > > On 18 Sep 2010, at 13:35, Fabian Keil wrote: > >> Doesn't build for me on amd64: >> >> fk@r500 /usr/src/tools/tools/umastat $make >> Warning: Object directory not changed from original /usr/src/tools/tools= /umastat >> cc -O2 -pipe =A0-fno-omit-frame-pointer -std=3Dgnu99 -fstack-protector -= Wsystem-headers -Werror -Wall -Wno-format-y2k -W -Wno-unused-parameter -Wst= rict-prototypes -Wmissing-prototypes -Wpointer-arith -Wno-uninitialized -Wn= o-pointer-sign -c umastat.c >> cc1: warnings being treated as errors >> umastat.c: In function 'uma_print_bucketlist': >> umastat.c:234: warning: format '%llu' expects type 'long long unsigned i= nt', but argument 3 has type 'uint64_t' >> umastat.c:234: warning: format '%llu' expects type 'long long unsigned i= nt', but argument 4 has type 'uint64_t' >> umastat.c: In function 'uma_print_cache': >> umastat.c:245: warning: format '%llu' expects type 'long long unsigned i= nt', but argument 3 has type 'u_int64_t' >> umastat.c:246: warning: format '%llu' expects type 'long long unsigned i= nt', but argument 3 has type 'u_int64_t' >> umastat.c: In function 'main': >> umastat.c:416: warning: format '%llu' expects type 'long long unsigned i= nt', but argument 2 has type 'u_int64_t' >> umastat.c:418: warning: format '%llu' expects type 'long long unsigned i= nt', but argument 2 has type 'u_int64_t' >> umastat.c:420: warning: format '%llu' expects type 'long long unsigned i= nt', but argument 2 has type 'u_int64_t' >> umastat.c:426: warning: dereferencing type-punned pointer will break str= ict-aliasing rules >> umastat.c:429: warning: dereferencing type-punned pointer will break str= ict-aliasing rules >> *** Error code 1 >> >> Stop in /usr/src/tools/tools/umastat. >> >> The attached patch seems to work around the problem, I'm not sure if >> the casts to void* are better than decreasing the WARN level, though ... > > This is a 32-bit/64-bit issue. Probably all pointers printing should be c= onverted to %p, and large integer types to %ju and %jd, perhaps with a cast= first to intmax_t or uintmax_t if required. All types were explicitly declared as u_int64_t, so I'd try this instead with PRIu64. Very few spots in the code today use void * (and the ones that do interface with kvm_read(3)). <OT> FWIW, kvm_read taking the second argument as unsigned long instead of void* seems a bit inconsistent: ssize_t kvm_read(kvm_t *kd, unsigned long addr, void *buf, size_t nbytes); ssize_t kvm_write(kvm_t *kd, unsigned long addr, const void *buf, size_t nbyte= s); but that's a different topic to look at later, if it really matters to anyo= ne. </OT> Thanks, -Garrett --00504501751940c0ea04908a5de9 Content-Type: application/octet-stream; name="umastat-64bit.diff" Content-Disposition: attachment; filename="umastat-64bit.diff" Content-Transfer-Encoding: base64 X-Attachment-Id: f_ge8mva1o0 SW5kZXg6IHVtYXN0YXQuYwo9PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSB1bWFzdGF0LmMJKHJldmlzaW9uIDIxMjIy MykKKysrIHVtYXN0YXQuYwkod29ya2luZyBjb3B5KQpAQCAtMzYsNiArMzYsNyBAQAogI2luY2x1 ZGUgPHZtL3VtYV9pbnQuaD4KIAogI2luY2x1ZGUgPGVyci5oPgorI2luY2x1ZGUgPGludHR5cGVz Lmg+CiAjaW5jbHVkZSA8a3ZtLmg+CiAjaW5jbHVkZSA8bWVtc3RhdC5oPgogI2luY2x1ZGUgPHN0 ZGlvLmg+CkBAIC0yMzAsOCArMjMxLDggQEAKIAl9CiAKIAlwcmludGYoIlxuIik7Ci0JcHJpbnRm KCIlc307ICAvLyB0b3RhbCBjbnQgJWxsdSwgdG90YWwgZW50cmllcyAlbGx1XG4iLCBzcGFjZXMs Ci0JICAgIHRvdGFsX2NudCwgdG90YWxfZW50cmllcyk7CisJcHJpbnRmKCIlc307ICAvLyB0b3Rh bCBjbnQgJSJQUkl1NjQiLCB0b3RhbCBlbnRyaWVzICUiUFJJdTY0IlxuIiwKKwkgICAgc3BhY2Vz LCB0b3RhbF9jbnQsIHRvdGFsX2VudHJpZXMpOwogfQogCiBzdGF0aWMgdm9pZApAQCAtMjQyLDgg KzI0Myw4IEBACiAJaW50IHJldDsKIAogCXByaW50ZigiJXMlc1slZF0gPSB7XG4iLCBzcGFjZXMs IG5hbWUsIGNwdSk7Ci0JcHJpbnRmKCIlcyAgdWNfZnJlZXMgPSAlbGx1O1xuIiwgc3BhY2VzLCBj YWNoZS0+dWNfZnJlZXMpOwotCXByaW50ZigiJXMgIHVjX2FsbG9jcyA9ICVsbHU7XG4iLCBzcGFj ZXMsIGNhY2hlLT51Y19hbGxvY3MpOworCXByaW50ZigiJXMgIHVjX2ZyZWVzID0gJSJQUkl1NjQi O1xuIiwgc3BhY2VzLCBjYWNoZS0+dWNfZnJlZXMpOworCXByaW50ZigiJXMgIHVjX2FsbG9jcyA9 ICUiUFJJdTY0IjtcbiIsIHNwYWNlcywgY2FjaGUtPnVjX2FsbG9jcyk7CiAKIAlpZiAoY2FjaGUt PnVjX2ZyZWVidWNrZXQgIT0gTlVMTCkgewogCQlyZXQgPSBrcmVhZChrdm0sIGNhY2hlLT51Y19m cmVlYnVja2V0LCAmdWIsIHNpemVvZih1YiksIDApOwpAQCAtNDEyLDExICs0MTMsMTEgQEAKIAkJ CX0KIAkJCXByaW50ZigiICBab25lIHtcbiIpOwogCQkJcHJpbnRmKCIgICAgdXpfbmFtZSA9IFwi JXNcIjtcbiIsIG5hbWUpOwotCQkJcHJpbnRmKCIgICAgdXpfYWxsb2NzID0gJWxsdTtcbiIsCisJ CQlwcmludGYoIiAgICB1el9hbGxvY3MgPSAlIlBSSXU2NCI7XG4iLAogCQkJICAgIHV6cF91c2Vy c3BhY2UtPnV6X2FsbG9jcyk7Ci0JCQlwcmludGYoIiAgICB1el9mcmVlcyA9ICVsbHU7XG4iLAor CQkJcHJpbnRmKCIgICAgdXpfZnJlZXMgPSAlIlBSSXU2NCI7XG4iLAogCQkJICAgIHV6cF91c2Vy c3BhY2UtPnV6X2ZyZWVzKTsKLQkJCXByaW50ZigiICAgIHV6X2ZhaWxzID0gJWxsdTtcbiIsCisJ CQlwcmludGYoIiAgICB1el9mYWlscyA9ICUiUFJJdTY0IjtcbiIsCiAJCQkgICAgdXpwX3VzZXJz cGFjZS0+dXpfZmFpbHMpOwogCQkJcHJpbnRmKCIgICAgdXpfZmlsbHMgPSAldTtcbiIsCiAJCQkg ICAgdXpwX3VzZXJzcGFjZS0+dXpfZmlsbHMpOwo= --00504501751940c0ea04908a5de9--
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