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([2a01:599:b25:5a4f:915f:c838:d9f4:60ca]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-493bef23feasm331060155e9.2.2026.07.06.03.36.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 06 Jul 2026 03:36:27 -0700 (PDT) Message-ID: <6e29ac41-383a-416c-bca4-c3d4349beda0@redhat.com> Date: Mon, 6 Jul 2026 12:36:26 +0200 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [kvm-unit-tests RFC PATCH 2/6] configure: Make arch_libdir a first-class entity To: Chinmay Rath Cc: npiggin@gmail.com, harshpb@linux.ibm.com, lvivier@redhat.com, linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org, andrew.jones@linux.dev, sbhat@linux.ibm.com References: <20260602064806.3101025-1-rathc@linux.ibm.com> <20260602064806.3101025-3-rathc@linux.ibm.com> <7d9e6365-1b2d-4b18-8fb5-d8048fddb7f0@redhat.com> From: Thomas Huth Autocrypt: addr=thuth@redhat.com; keydata= xsFNBFH7eUwBEACzyOXKU+5Pcs6wNpKzrlJwzRl3VGZt95VCdb+FgoU9g11m7FWcOafrVRwU yYkTm9+7zBUc0sW5AuPGR/dp3pSLX/yFWsA/UB4nJsHqgDvDU7BImSeiTrnpMOTXb7Arw2a2 4CflIyFqjCpfDM4MuTmzTjXq4Uov1giGE9X6viNo1pxyEpd7PanlKNnf4PqEQp06X4IgUacW tSGj6Gcns1bCuHV8OPWLkf4hkRnu8hdL6i60Yxz4E6TqlrpxsfYwLXgEeswPHOA6Mn4Cso9O 0lewVYfFfsmokfAVMKWzOl1Sr0KGI5T9CpmRfAiSHpthhHWnECcJFwl72NTi6kUcUzG4se81 O6n9d/kTj7pzTmBdfwuOZ0YUSqcqs0W+l1NcASSYZQaDoD3/SLk+nqVeCBB4OnYOGhgmIHNW 0CwMRO/GK+20alxzk//V9GmIM2ACElbfF8+Uug3pqiHkVnKqM7W9/S1NH2qmxB6zMiJUHlTH gnVeZX0dgH27mzstcF786uPcdEqS0KJuxh2kk5IvUSL3Qn3ZgmgdxBMyCPciD/1cb7/Ahazr 3ThHQXSHXkH/aDXdfLsKVuwDzHLVSkdSnZdt5HHh75/NFHxwaTlydgfHmFFwodK8y/TjyiGZ zg2Kje38xnz8zKn9iesFBCcONXS7txENTzX0z80WKBhK+XSFJwARAQABzR5UaG9tYXMgSHV0 aCA8dGh1dGhAcmVkaGF0LmNvbT7CwXgEEwECACIFAlVgX6oCGwMGCwkIBwMCBhUIAgkKCwQW AgMBAh4BAheAAAoJEC7Z13T+cC21EbIP/ii9cvT2HHGbFRl8HqGT6+7Wkb+XLMqJBMAIGiQK QIP3xk1HPTsLfVG0ao4hy/oYkGNOP8+ubLnZen6Yq3zAFiMhQ44lvgigDYJo3Ve59gfe99KX EbtB+X95ODARkq0McR6OAsPNJ7gpEUzfkQUUJTXRDQXfG/FX303Gvk+YU0spm2tsIKPl6AmV 1CegDljzjycyfJbk418MQmMu2T82kjrkEofUO2a24ed3VGC0/Uz//XCR2ZTo+vBoBUQl41BD eFFtoCSrzo3yPFS+w5fkH9NT8ChdpSlbNS32NhYQhJtr9zjWyFRf0Zk+T/1P7ECn6gTEkp5k ofFIA4MFBc/fXbaDRtBmPB0N9pqTFApIUI4vuFPPO0JDrII9dLwZ6lO9EKiwuVlvr1wwzsgq zJTPBU3qHaUO4d/8G+gD7AL/6T4zi8Jo/GmjBsnYaTzbm94lf0CjXjsOX3seMhaE6WAZOQQG tZHAO1kAPWpaxne+wtgMKthyPLNwelLf+xzGvrIKvLX6QuLoWMnWldu22z2ICVnLQChlR9d6 WW8QFEpo/FK7omuS8KvvopFcOOdlbFMM8Y/8vBgVMSsK6fsYUhruny/PahprPbYGiNIhKqz7 UvgyZVl4pBFjTaz/SbimTk210vIlkDyy1WuS8Zsn0htv4+jQPgo9rqFE4mipJjy/iboDzsFN BFH7eUwBEAC2nzfUeeI8dv0C4qrfCPze6NkryUflEut9WwHhfXCLjtvCjnoGqFelH/PE9NF4 4VPSCdvD1SSmFVzu6T9qWdcwMSaC+e7G/z0/AhBfqTeosAF5XvKQlAb9ZPkdDr7YN0a1XDfa +NgA+JZB4ROyBZFFAwNHT+HCnyzy0v9Sh3BgJJwfpXHH2l3LfncvV8rgFv0bvdr70U+On2XH 5bApOyW1WpIG5KPJlDdzcQTyptOJ1dnEHfwnABEfzI3dNf63rlxsGouX/NFRRRNqkdClQR3K gCwciaXfZ7ir7fF0u1N2UuLsWA8Ei1JrNypk+MRxhbvdQC4tyZCZ8mVDk+QOK6pyK2f4rMf/ WmqxNTtAVmNuZIwnJdjRMMSs4W4w6N/bRvpqtykSqx7VXcgqtv6eqoDZrNuhGbekQA0sAnCJ VPArerAZGArm63o39me/bRUQeQVSxEBmg66yshF9HkcUPGVeC4B0TPwz+HFcVhheo6hoJjLq knFOPLRj+0h+ZL+D0GenyqD3CyuyeTT5dGcNU9qT74bdSr20k/CklvI7S9yoQje8BeQAHtdV cvO8XCLrpGuw9SgOS7OP5oI26a0548M4KldAY+kqX6XVphEw3/6U1KTf7WxW5zYLTtadjISB X9xsRWSU+Yqs3C7oN5TIPSoj9tXMoxZkCIHWvnqGwZ7JhwARAQABwsFfBBgBAgAJBQJR+3lM AhsMAAoJEC7Z13T+cC21hPAQAIsBL9MdGpdEpvXs9CYrBkd6tS9mbaSWj6XBDfA1AEdQkBOn ZH1Qt7HJesk+qNSnLv6+jP4VwqK5AFMrKJ6IjE7jqgzGxtcZnvSjeDGPF1h2CKZQPpTw890k fy18AvgFHkVk2Oylyexw3aOBsXg6ukN44vIFqPoc+YSU0+0QIdYJp/XFsgWxnFIMYwDpxSHS 5fdDxUjsk3UBHZx+IhFjs2siVZi5wnHIqM7eK9abr2cK2weInTBwXwqVWjsXZ4tq5+jQrwDK cvxIcwXdUTLGxc4/Z/VRH1PZSvfQxdxMGmNTGaXVNfdFZjm4fz0mz+OUi6AHC4CZpwnsliGV ODqwX8Y1zic9viSTbKS01ZNp175POyWViUk9qisPZB7ypfSIVSEULrL347qY/hm9ahhqmn17 Ng255syASv3ehvX7iwWDfzXbA0/TVaqwa1YIkec+/8miicV0zMP9siRcYQkyTqSzaTFBBmqD oiT+z+/E59qj/EKfyce3sbC9XLjXv3mHMrq1tKX4G7IJGnS989E/fg6crv6NHae9Ckm7+lSs IQu4bBP2GxiRQ+NV3iV/KU3ebMRzqIC//DCOxzQNFNJAKldPe/bKZMCxEqtVoRkuJtNdp/5a yXFZ6TfE1hGKrDBYAm4vrnZ4CXFSBDllL59cFFOJCkn4Xboj/aVxxJxF30bn In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: TJcfu1b6_2AgLxRiPxm8AGUnY3qBJa-ecDHjxlWvwh4_1783334189 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit On 03/07/2026 08.46, Chinmay Rath wrote: > > On 6/10/26 17:00, Thomas Huth wrote: >> On 02/06/2026 08.48, Chinmay Rath wrote: >>> From: Nicholas Piggin >>> >>> arch_libdir was brought in to improve the heuristic determination of >>> the lib/ directory based on arch and testdir names, but it did not >>> entirely clean that mess up. >>> >>> Remove the arch_libdir->arch->testdir heuristic and just require >>> everybody sets arch_libdir correctly. Fail if the lib/arch or >>> lib/arch/asm directories can not be found. >>> >>> Signed-off-by: Nicholas Piggin >>> Signed-off-by: Chinmay Rath >>> --- >>>   Makefile  |  2 +- >>>   configure | 20 ++++++++++++-------- >>>   2 files changed, 13 insertions(+), 9 deletions(-) >> >> FYI, this patch seems to trigger yet another issue with Clang (I used v21): >> >> clang -no-integrated-as -std=gnu99 -ffreestanding -O2 -msoft-float -mno- >> altivec  -I /root/kvm-unit-tests/lib -I /root/kvm-unit-tests/lib/libfdt -I >> lib -Wa,-mregnames -fverbose-asm -S -o lib/powerpc/asm-offsets.s lib/ >> powerpc/asm-offsets.c >> lib/powerpc/asm-offsets.c:10:10: error: 'asm/smp.h' file not found with >> include; use >>       "quotes" instead >>    10 | #include >>       |          ^~~~~~~~~~~ >>       |          "asm/smp.h" >> In file included from lib/powerpc/asm-offsets.c:10: >> lib/powerpc/asm/smp.h:5:10: fatal error: 'asm/processor.h' file not found >>     5 | #include >>       |          ^~~~~~~~~~~~~~~~~ >> 2 errors generated. >> >> Could you please have a look? > > Hi Thomas, back from traveling and looked into this. > I am using Clang v21 as well : > # clang --version > clang version 21.1.8 (Fedora 21.1.8-4.fc43) > Target: ppc64le-redhat-linux-gnu > Thread model: posix > InstalledDir: /usr/bin > Configuration file: /etc/clang/ppc64le-redhat-linux-gnu-clang.cfg > > I see the above file, asm-offsets.s being generated properly without any > error during the make process (used the extra flags for make that I have > mentioned in my other reply). > Snippet from make : > cat powerpc/boot_rom.bin.tmp >> powerpc/boot_rom.bin > rm -f powerpc/boot_rom.bin.tmp > clang -no-integrated-as -Wa,-mpower10 -std=gnu99 -ffreestanding -O2 -msoft- > float -mno-altivec  -I /root/chins/git/kvm-unit-tests/lib -I /root/chins/ > git/kvm-unit-tests/lib/libfdt -I lib -Wa,-mregnames -fverbose-asm -S -o lib/ > powerpc/asm-offsets.s /root/chins/git/kvm-unit-tests/lib/powerpc/asm-offsets.c > (set -e; echo "#ifndef __ASM_OFFSETS_H__"; echo "#define __ASM_OFFSETS_H__"; > echo "/*"; echo " * Generated file. DO NOT MODIFY."; echo " *"; echo " */"; > echo ""; sed -ne  's:^[[:space:]]*\.ascii[[:space:]]*"\(.*\)".*:\1:; /^->/ > {s:->#\(.*\):/* \1 */:; s:^->\([^ ]*\) [\$#]*\([-0-9]*\) \(.*\):#define \1 > \2 /* \3 */:; s:^->\([^ ]*\) [\$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; > s:->::; p;}' lib/powerpc/asm-offsets.s; echo ""; echo "#endif" ) > lib/ > powerpc/asm-offsets.h > cp -f lib/powerpc/asm-offsets.h lib/generated/ > clang -no-integrated-as -Wa,-mpower10 -std=gnu99 -ffreestanding -O2 -msoft- > float -mno-altivec  -I /root/chins/git/kvm-unit-tests/lib -I /root/chins/ > git/kvm-unit-tests/lib/libfdt -I lib -Wa,-mregnames -g -MMD -MP -MF > powerpc/.selftest.d -fno-strict-aliasing -fno-common -Wall -Wwrite-strings - > Wempty-body -Wuninitialized -Wignored-qualifiers -Wno-missing-braces -Werror > -fomit-frame-pointer  -fno-stack-protector   -Wno-frame-address  -fno-pic > -Wunused-but-set-parameter -Wno-override-init  -Wmissing-prototypes - > Wstrict-prototypes -mlittle-endian   -c -o powerpc/selftest.o /root/chins/ > git/kvm-unit-tests/powerpc/selftest.c > > Infact, if I just execute that single command independently to build asm- > offsets.s, it works as well. Ok, I finally got access to a POWER system again and tried to reproduce the issue, but I also cannot reproduce it anymore. No clue how I managed to get into that situation, but looks like it was rather due to a messed up build tree than due to your patch. So sorry for the trouble, and please go ahead and simply ignore my objection here. Thanks, Thomas