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Date: Tue, 25 Aug 2020 20:18:21 -0700 From: Andrii Nakryiko <andrii.nakryiko@...il.com> To: Naresh Kamboju <naresh.kamboju@...aro.org> Cc: bpf <bpf@...r.kernel.org>, Netdev <netdev@...r.kernel.org>, Alexei Starovoitov <ast@...com>, Daniel Borkmann <daniel@...earbox.net>, Kernel Team <kernel-team@...com>, Andrii Nakryiko <andriin@...com>, lkft-triage@...ts.linaro.org, Daniel Díaz <daniel.diaz@...aro.org> Subject: Re: expects argument of type 'size_t', but argument 5 has type 'Elf64_Xword On Mon, Aug 24, 2020 at 2:00 AM Naresh Kamboju <naresh.kamboju@...aro.org> wrote: > > while building perf with gcc 7.3.0 on linux next this warning/error is found. > > In file included from libbpf.c:55:0: > libbpf.c: In function 'bpf_object__elf_collect': > libbpf_internal.h:74:22: error: format '%zu' expects argument of type > 'size_t', but argument 5 has type 'Elf64_Xword {aka long long unsigned > int}' [-Werror=format=] > libbpf_print(level, "libbpf: " fmt, ##__VA_ARGS__); > cc1: all warnings being treated as errors > You left out the most useful part: | libbpf.c:2826:4: note: in expansion of macro 'pr_info' | pr_info("elf: skipping section(%d) %s (size %zu)\n", idx, name, sh.sh_size); | ^~~~~~~ | libbpf.c:2826:50: note: format string is defined here | pr_info("elf: skipping section(%d) %s (size %zu)\n", idx, name, sh.sh_size); | ~~^ | %llu But I fixed it as part of [0], thanks. [0] https://patchwork.ozlabs.org/project/netdev/patch/20200826030922.2591203-1-andriin@fb.com/ > OE perf build long link, > https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-next/DISTRO=lkft,MACHINE=am57xx-evm,label=docker-lkft/846/consoleText > > - Naresh
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