On Mon, Aug 24, 2020 at 2:00 AM Naresh Kamboju naresh.kamboju@linaro.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-a...

OE perf build long link, https://ci.linaro.org/view/lkft/job/openembedded-lkft-linux-next/DISTRO=lkft...

• Naresh