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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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a88f70de1b
Ingo reported that the libaudit was always appearing as OFF:
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libaudit: [ OFF ]
And everything seemed to work, i.e. we were checking for a feature that
we don't use, causing confusion for people building perf, so work to
remove that nuisance while making sure that it works when an arch
doesn't provide the alternative method to generate the syscall id/name
conversion tables.
Longer explanation of the new modus operandi:
$ make -C tools/perf O=/tmp/build/perf NO_SYSCALL_TABLE=1
<SNIP>
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libbfd: [ on ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
Makefile.config:665: No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev
GEN /tmp/build/perf/common-cmds.h
MKDIR /tmp/build/perf/fd/
MKDIR /tmp/build/perf/fs/
<SNIP>
$
The libaudit test is forced and it fails when audit-libs-devel isn't available:
$ cat /tmp/build/perf/feature/test-libaudit.make.output
test-libaudit.c:2:10: fatal error: libaudit.h: No such file or directory
2 | #include <libaudit.h>
| ^~~~~~~~~~~~
compilation terminated.
$
If we install audit-libs-devel and rebuild it continues not to be shown as OFF
in the main auto-detection summary, but again gets tested and this time:
$ rpm -q audit-libs-devel
audit-libs-devel-3.0-0.15.20191104git1c2f876.fc31.x86_64
$
The make output for the feature detection comes clean:
$ cat /tmp/build/perf/feature/test-libaudit.make.output
And the feature detection binary is successfully built and is dynamicly linked
with libaudit:
$ ldd /tmp/build/perf/feature/test-libaudit.bin | grep audit
libaudit.so.1 => /lib64/libaudit.so.1 (0x00007f5bf5177000)
$
As well as the resulting perf binary:
$ ldd /tmp/build/perf/perf | grep audit
libaudit.so.1 => /lib64/libaudit.so.1 (0x00007fad511c7000)
$
And 'perf trace' works using the libaudit method:
$ sudo /tmp/build/perf/perf trace -e nanosleep sleep 1
0.000 (1000.067 ms): sleep/281872 nanosleep(rqtp: 0x7ffedbbe69d0) = 0
$
If we leave audit-libs-devel installed but don't disable the use of the best
method, the one using SYSCALL_TABLE, the default for architectures that provide
the script to build the syscall id/name mapping using the .tbl files copied
from the kernel sources, we get:
$ rm -rf /tmp/build/perf ; mkdir -p /tmp/build/perf
$ make -C tools/perf O=/tmp/build/perf
Auto-detecting system features:
... dwarf: [ on ]
... dwarf_getlocations: [ on ]
... glibc: [ on ]
... gtk2: [ on ]
... libbfd: [ on ]
... libcap: [ on ]
... libelf: [ on ]
... libnuma: [ on ]
... numa_num_possible_cpus: [ on ]
... libperl: [ on ]
... libpython: [ on ]
... libcrypto: [ on ]
... libunwind: [ on ]
... libdw-dwarf-unwind: [ on ]
... zlib: [ on ]
... lzma: [ on ]
... get_cpuid: [ on ]
... bpf: [ on ]
... libaio: [ on ]
... libzstd: [ on ]
... disassembler-four-args: [ on ]
GEN /tmp/build/perf/common-cmds.h
<SNIP>
$
Again, no mention of libaudit being on or OFF and:
$ cat /tmp/build/perf/feature/test-libaudit.make.output
cat: /tmp/build/perf/feature/test-libaudit.make.output: No such file or directory
$
We didn't even bother checking for its availability, slightly speeding up the
build process and:
$ ldd /tmp/build/perf/perf | grep libaudit
$
We don't link with it, also:
$ sudo /tmp/build/perf/perf trace -e nanosleep sleep 1
0.000 (1000.053 ms): sleep/299125 nanosleep(rqtp: 0x7ffc24611b50) = 0
$
And globs become available:
$ sudo /tmp/build/perf/perf trace -e *sleep sleep 1
0.000 (1000.072 ms): sleep/299136 nanosleep(rqtp: 0x7ffe7a3c4ff0) = 0
$
Reported-by: Ingo Molnar <mingo@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
234 lines
4.9 KiB
C
234 lines
4.9 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/*
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* test-all.c: Try to build all the main testcases at once.
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*
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* A well-configured system will have all the prereqs installed, so we can speed
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* up auto-detection on such systems.
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*/
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/*
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* Quirk: Python and Perl headers cannot be in arbitrary places, so keep
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* these 3 testcases at the top:
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*/
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#define main main_test_libpython
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# include "test-libpython.c"
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#undef main
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#define main main_test_libpython_version
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# include "test-libpython-version.c"
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#undef main
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#define main main_test_libperl
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# include "test-libperl.c"
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#undef main
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#define main main_test_hello
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# include "test-hello.c"
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#undef main
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#define main main_test_libelf
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# include "test-libelf.c"
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#undef main
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#define main main_test_libelf_mmap
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# include "test-libelf-mmap.c"
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#undef main
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#define main main_test_get_current_dir_name
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# include "test-get_current_dir_name.c"
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#undef main
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#define main main_test_gettid
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# include "test-gettid.c"
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#undef main
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#define main main_test_glibc
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# include "test-glibc.c"
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#undef main
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#define main main_test_dwarf
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# include "test-dwarf.c"
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#undef main
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#define main main_test_dwarf_getlocations
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# include "test-dwarf_getlocations.c"
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#undef main
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#define main main_test_eventfd
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# include "test-eventfd.c"
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#undef main
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#define main main_test_libelf_getphdrnum
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# include "test-libelf-getphdrnum.c"
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#undef main
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#define main main_test_libelf_gelf_getnote
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# include "test-libelf-gelf_getnote.c"
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#undef main
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#define main main_test_libelf_getshdrstrndx
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# include "test-libelf-getshdrstrndx.c"
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#undef main
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#define main main_test_libunwind
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# include "test-libunwind.c"
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#undef main
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#define main main_test_libslang
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# include "test-libslang.c"
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#undef main
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#define main main_test_gtk2
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# include "test-gtk2.c"
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#undef main
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#define main main_test_gtk2_infobar
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# include "test-gtk2-infobar.c"
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#undef main
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#define main main_test_libbfd
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# include "test-libbfd.c"
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#undef main
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#define main main_test_backtrace
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# include "test-backtrace.c"
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#undef main
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#define main main_test_libnuma
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# include "test-libnuma.c"
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#undef main
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#define main main_test_numa_num_possible_cpus
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# include "test-numa_num_possible_cpus.c"
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#undef main
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#define main main_test_timerfd
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# include "test-timerfd.c"
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#undef main
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#define main main_test_stackprotector_all
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# include "test-stackprotector-all.c"
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#undef main
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#define main main_test_libdw_dwarf_unwind
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# include "test-libdw-dwarf-unwind.c"
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#undef main
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#define main main_test_sync_compare_and_swap
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# include "test-sync-compare-and-swap.c"
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#undef main
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#define main main_test_zlib
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# include "test-zlib.c"
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#undef main
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#define main main_test_pthread_attr_setaffinity_np
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# include "test-pthread-attr-setaffinity-np.c"
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#undef main
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#define main main_test_pthread_barrier
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# include "test-pthread-barrier.c"
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#undef main
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#define main main_test_sched_getcpu
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# include "test-sched_getcpu.c"
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#undef main
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# if 0
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/*
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* Disable libbabeltrace check for test-all, because the requested
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* library version is not released yet in most distributions. Will
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* reenable later.
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*/
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#define main main_test_libbabeltrace
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# include "test-libbabeltrace.c"
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#undef main
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#endif
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#define main main_test_lzma
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# include "test-lzma.c"
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#undef main
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#define main main_test_get_cpuid
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# include "test-get_cpuid.c"
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#undef main
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#define main main_test_bpf
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# include "test-bpf.c"
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#undef main
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#define main main_test_libcrypto
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# include "test-libcrypto.c"
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#undef main
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#define main main_test_sdt
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# include "test-sdt.c"
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#undef main
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#define main main_test_setns
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# include "test-setns.c"
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#undef main
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#define main main_test_libaio
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# include "test-libaio.c"
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#undef main
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#define main main_test_reallocarray
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# include "test-reallocarray.c"
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#undef main
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#define main main_test_disassembler_four_args
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# include "test-disassembler-four-args.c"
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#undef main
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#define main main_test_libzstd
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# include "test-libzstd.c"
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#undef main
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int main(int argc, char *argv[])
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{
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main_test_libpython();
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main_test_libpython_version();
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main_test_libperl();
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main_test_hello();
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main_test_libelf();
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main_test_libelf_mmap();
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main_test_get_current_dir_name();
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main_test_gettid();
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main_test_glibc();
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main_test_dwarf();
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main_test_dwarf_getlocations();
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main_test_eventfd();
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main_test_libelf_getphdrnum();
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main_test_libelf_gelf_getnote();
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main_test_libelf_getshdrstrndx();
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main_test_libunwind();
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main_test_libslang();
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main_test_gtk2(argc, argv);
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main_test_gtk2_infobar(argc, argv);
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main_test_libbfd();
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main_test_backtrace();
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main_test_libnuma();
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main_test_numa_num_possible_cpus();
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main_test_timerfd();
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main_test_stackprotector_all();
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main_test_libdw_dwarf_unwind();
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main_test_sync_compare_and_swap(argc, argv);
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main_test_zlib();
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main_test_pthread_attr_setaffinity_np();
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main_test_pthread_barrier();
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main_test_lzma();
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main_test_get_cpuid();
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main_test_bpf();
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main_test_libcrypto();
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main_test_sched_getcpu();
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main_test_sdt();
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main_test_setns();
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main_test_libaio();
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main_test_reallocarray();
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main_test_disassembler_four_args();
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main_test_libzstd();
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return 0;
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}
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