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3b573bf318
The bpf.h file needed gets installed in /usr/lib/include/perf/bpf/bpf.h,
and /usr/lib/include/perf/ is added to the include path passed to clang
to build the eBPF bytecode, so just remove "bpf/", its directly in the
path passed already. This was working by accident, fix it.
I.e. now this is back working:
# cat /home/acme/git/perf/tools/perf/examples/bpf/hello.c
#include <stdio.h>
int syscall_enter(openat)(void *args)
{
puts("Hello, world\n");
return 0;
}
license(GPL);
# perf trace -e /home/acme/git/perf/tools/perf/examples/bpf/hello.c
0.000 pickup/21493 __bpf_stdout__(Hello, world)
56.462 sh/13539 __bpf_stdout__(Hello, world)
56.536 sh/13539 __bpf_stdout__(Hello, world)
56.673 sh/13539 __bpf_stdout__(Hello, world)
56.781 sh/13539 __bpf_stdout__(Hello, world)
56.707 perf/13182 __bpf_stdout__(Hello, world)
56.849 perf/13182 __bpf_stdout__(Hello, world)
^C
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-d9myswhgo8gfi3vmehdqpxa7@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.