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Date: Fri, 17 Aug 2018 15:23:15 -0300
From: Arnaldo Carvalho de Melo <acme@...nel.org>
To: Jiri Olsa <jolsa@...nel.org>
Cc: lkml <linux-kernel@...r.kernel.org>,
Ingo Molnar <mingo@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
David Ahern <dsahern@...il.com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Peter Zijlstra <a.p.zijlstra@...llo.nl>,
Michael Petlan <mpetlan@...hat.com>
Subject: Re: [PATCH 06/13] perf tools: Add compression id into struct
kmod_path
Em Fri, Aug 17, 2018 at 11:48:06AM +0200, Jiri Olsa escreveu:
> Storing decompression ID in the struct kmod_path, so it
> can be later stored in the struct dso.
>
> Switching the struct kmod_path::comp from bool to int
> to return the compressions array index. Adding 0 index
> item into compressions array, so the comp usage stays
> as it was: 0 - no compression, != 0 index of compression.
>
> Updating the kmod_path tests.
>
> Link: http://lkml.kernel.org/n/tip-vxxfco32fh5veg1817udcx2c@git.kernel.org
> Signed-off-by: Jiri Olsa <jolsa@...nel.org>
> ---
> tools/perf/tests/kmod-path.c | 42 ++++++++++++++++++------------------
> tools/perf/util/dso.c | 18 ++++++++++------
> tools/perf/util/dso.h | 2 +-
> 3 files changed, 33 insertions(+), 29 deletions(-)
>
> diff --git a/tools/perf/tests/kmod-path.c b/tools/perf/tests/kmod-path.c
> index 148dd31cc201..f92f78f683ea 100644
> --- a/tools/perf/tests/kmod-path.c
> +++ b/tools/perf/tests/kmod-path.c
> @@ -6,7 +6,7 @@
> #include "debug.h"
>
> static int test(const char *path, bool alloc_name, bool alloc_ext,
> - bool kmod, bool comp, const char *name, const char *ext)
> + bool kmod, int comp, const char *name, const char *ext)
> {
> struct kmod_path m;
>
> @@ -54,47 +54,47 @@ static int test_is_kernel_module(const char *path, int cpumode, bool expect)
> int test__kmod_path__parse(struct test *t __maybe_unused, int subtest __maybe_unused)
> {
> /* path alloc_name alloc_ext kmod comp name ext */
> - T("/xxxx/xxxx/x-x.ko", true , true , true, false, "[x_x]", NULL);
> - T("/xxxx/xxxx/x-x.ko", false , true , true, false, NULL , NULL);
> - T("/xxxx/xxxx/x-x.ko", true , false , true, false, "[x_x]", NULL);
> - T("/xxxx/xxxx/x-x.ko", false , false , true, false, NULL , NULL);
> + T("/xxxx/xxxx/x-x.ko", true , true , true, 0 , "[x_x]", NULL);
> + T("/xxxx/xxxx/x-x.ko", false , true , true, 0 , NULL , NULL);
> + T("/xxxx/xxxx/x-x.ko", true , false , true, 0 , "[x_x]", NULL);
> + T("/xxxx/xxxx/x-x.ko", false , false , true, 0 , NULL , NULL);
> M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
> M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_KERNEL, true);
> M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_USER, false);
>
> #ifdef HAVE_ZLIB_SUPPORT
> /* path alloc_name alloc_ext kmod comp name ext */
> - T("/xxxx/xxxx/x.ko.gz", true , true , true, true, "[x]", "gz");
> - T("/xxxx/xxxx/x.ko.gz", false , true , true, true, NULL , "gz");
> - T("/xxxx/xxxx/x.ko.gz", true , false , true, true, "[x]", NULL);
> - T("/xxxx/xxxx/x.ko.gz", false , false , true, true, NULL , NULL);
> + T("/xxxx/xxxx/x.ko.gz", true , true , true, 1 , "[x]", "gz");
> + T("/xxxx/xxxx/x.ko.gz", false , true , true, 1 , NULL , "gz");
> + T("/xxxx/xxxx/x.ko.gz", true , false , true, 1 , "[x]", NULL);
> + T("/xxxx/xxxx/x.ko.gz", false , false , true, 1 , NULL , NULL);
> M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
> M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_KERNEL, true);
> M("/xxxx/xxxx/x.ko.gz", PERF_RECORD_MISC_USER, false);
>
> /* path alloc_name alloc_ext kmod comp name ext */
> - T("/xxxx/xxxx/x.gz", true , true , false, true, "x.gz" ,"gz");
> - T("/xxxx/xxxx/x.gz", false , true , false, true, NULL ,"gz");
> - T("/xxxx/xxxx/x.gz", true , false , false, true, "x.gz" , NULL);
> - T("/xxxx/xxxx/x.gz", false , false , false, true, NULL , NULL);
> + T("/xxxx/xxxx/x.gz", true , true , false, 1 , "x.gz" ,"gz");
> + T("/xxxx/xxxx/x.gz", false , true , false, 1 , NULL ,"gz");
> + T("/xxxx/xxxx/x.gz", true , false , false, 1 , "x.gz" , NULL);
> + T("/xxxx/xxxx/x.gz", false , false , false, 1 , NULL , NULL);
> M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
> M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_KERNEL, false);
> M("/xxxx/xxxx/x.gz", PERF_RECORD_MISC_USER, false);
>
> /* path alloc_name alloc_ext kmod comp name ext */
> - T("x.gz", true , true , false, true, "x.gz", "gz");
> - T("x.gz", false , true , false, true, NULL , "gz");
> - T("x.gz", true , false , false, true, "x.gz", NULL);
> - T("x.gz", false , false , false, true, NULL , NULL);
> + T("x.gz", true , true , false, 1 , "x.gz", "gz");
> + T("x.gz", false , true , false, 1 , NULL , "gz");
> + T("x.gz", true , false , false, 1 , "x.gz", NULL);
> + T("x.gz", false , false , false, 1 , NULL , NULL);
> M("x.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, false);
> M("x.gz", PERF_RECORD_MISC_KERNEL, false);
> M("x.gz", PERF_RECORD_MISC_USER, false);
>
> /* path alloc_name alloc_ext kmod comp name ext */
> - T("x.ko.gz", true , true , true, true, "[x]", "gz");
> - T("x.ko.gz", false , true , true, true, NULL , "gz");
> - T("x.ko.gz", true , false , true, true, "[x]", NULL);
> - T("x.ko.gz", false , false , true, true, NULL , NULL);
> + T("x.ko.gz", true , true , true, 1 , "[x]", "gz");
> + T("x.ko.gz", false , true , true, 1 , NULL , "gz");
> + T("x.ko.gz", true , false , true, 1 , "[x]", NULL);
> + T("x.ko.gz", false , false , true, 1 , NULL , NULL);
> M("x.ko.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
> M("x.ko.gz", PERF_RECORD_MISC_KERNEL, true);
> M("x.ko.gz", PERF_RECORD_MISC_USER, false);
> diff --git a/tools/perf/util/dso.c b/tools/perf/util/dso.c
> index 4449a7257340..f5f8babea17c 100644
> --- a/tools/perf/util/dso.c
> +++ b/tools/perf/util/dso.c
> @@ -189,10 +189,15 @@ int dso__read_binary_type_filename(const struct dso *dso,
> return ret;
> }
>
> +enum {
> + COMP_ID__NONE = 0,
> +};
> +
> static const struct {
> const char *fmt;
> int (*decompress)(const char *input, int output);
> } compressions[] = {
> + [COMP_ID__NONE] = { 0 },
This broke the build in many places, problems of this kind:
CC /tmp/build/perf/util/dso.o
LD /tmp/build/perf/scripts/python/Perf-Trace-Util/libperf-in.o
LD /tmp/build/perf/scripts/libperf-in.o
CC /tmp/build/perf/trace/beauty/clone.o
CC /tmp/build/perf/util/symbol.o
util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
[COMP_ID__NONE] = { 0 },
^
1 error generated.
CC /tmp/build/perf/trace/beauty/fcntl.o
mv: cannot stat '/tmp/build/perf/util/.dso.o.tmp': No such file or directory
/git/linux/tools/build/Makefile.build:96: recipe for target '/tmp/build/perf/util/dso.o' failed
If we look just at those that failed, its several gcc versions:
11 9.91 centos:5 : FAIL gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
12 14.34 centos:6 : FAIL gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
16 47.50 debian:9 : FAIL gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
28 53.92 fedora:25 : FAIL gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
29 60.75 fedora:26 : FAIL gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
30 90.76 fedora:27 : FAIL gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6)
41 12.78 oraclelinux:6 : FAIL gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
43 12.85 ubuntu:12.04.5 : FAIL gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
46 45.56 ubuntu:16.04 : FAIL gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609
54 49.60 ubuntu:17.10 : FAIL gcc (Ubuntu 7.2.0-8ubuntu3.2) 7.2.0
[root@...enth ~]# grep error: /tmp/dm.log/*
/tmp/dm.log/centos:6:util/dso.c:201: error: missing initializer
/tmp/dm.log/centos:6:util/dso.c:201: error: (near initialization for 'compressions[0].decompress')
/tmp/dm.log/debian:9:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
/tmp/dm.log/fedora:25:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
/tmp/dm.log/fedora:26:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
/tmp/dm.log/fedora:27:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
/tmp/dm.log/oraclelinux:6:util/dso.c:201: error: missing initializer
/tmp/dm.log/oraclelinux:6:util/dso.c:201: error: (near initialization for 'compressions[0].decompress')
/tmp/dm.log/ubuntu:12.04.5:util/dso.c:201:2: error: missing initializer [-Werror=missing-field-initializers]
/tmp/dm.log/ubuntu:12.04.5:util/dso.c:201:2: error: (near initialization for 'compressions[0].decompress') [-Werror=missing-field-initializers]
/tmp/dm.log/ubuntu:16.04:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
/tmp/dm.log/ubuntu:16.10:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
/tmp/dm.log/ubuntu:16.10:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
/tmp/dm.log/ubuntu:17.10:util/dso.c:201:24: error: missing field 'decompress' initializer [-Werror,-Wmissing-field-initializers]
[root@...enth ~]#
Trying to fix...
# dm
1 43.58 alpine:3.4 : Ok gcc (Alpine 5.3.0) 5.3.0
2 47.76 alpine:3.5 : Ok gcc (Alpine 6.2.1) 6.2.1 20160822
3 48.40 alpine:3.6 : Ok gcc (Alpine 6.3.0) 6.3.0
4 44.07 alpine:3.7 : Ok gcc (Alpine 6.4.0) 6.4.0
5 47.43 alpine:3.8 : Ok gcc (Alpine 6.4.0) 6.4.0
6 44.54 alpine:edge : Ok gcc (Alpine 6.4.0) 6.4.0
7 36.61 amazonlinux:1 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
8 41.03 amazonlinux:2 : Ok gcc (GCC) 7.3.1 20180303 (Red Hat 7.3.1-5)
9 27.49 android-ndk:r12b-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
10 29.10 android-ndk:r15c-arm : Ok arm-linux-androideabi-gcc (GCC) 4.9.x 20150123 (prerelease)
11 9.91 centos:5 : FAIL gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-55)
12 14.34 centos:6 : FAIL gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23)
13 40.77 centos:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28)
14 38.91 debian:7 : Ok gcc (Debian 4.7.2-5) 4.7.2
15 38.01 debian:8 : Ok gcc (Debian 4.9.2-10+deb8u1) 4.9.2
16 47.50 debian:9 : FAIL gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516
17 106.91 debian:experimental : Ok gcc (Debian 8.2.0-4) 8.2.0
18 43.17 debian:experimental-x-arm64 : Ok aarch64-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
19 41.17 debian:experimental-x-mips : Ok mips-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
20 38.28 debian:experimental-x-mips64 : Ok mips64-linux-gnuabi64-gcc (Debian 8.1.0-12) 8.1.0
21 40.77 debian:experimental-x-mipsel : Ok mipsel-linux-gnu-gcc (Debian 8.1.0-12) 8.1.0
22 40.36 fedora:20 : Ok gcc (GCC) 4.8.3 20140911 (Red Hat 4.8.3-7)
23 41.30 fedora:21 : Ok gcc (GCC) 4.9.2 20150212 (Red Hat 4.9.2-6)
24 41.42 fedora:22 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
25 40.67 fedora:23 : Ok gcc (GCC) 5.3.1 20160406 (Red Hat 5.3.1-6)
26 42.09 fedora:24 : Ok gcc (GCC) 6.3.1 20161221 (Red Hat 6.3.1-1)
27 35.26 fedora:24-x-ARC-uClibc : Ok arc-linux-gcc (ARCompact ISA Linux uClibc toolchain 2017.09-rc2) 7.1.1 20170710
28 53.92 fedora:25 : FAIL gcc (GCC) 6.4.1 20170727 (Red Hat 6.4.1-1)
29 60.75 fedora:26 : FAIL gcc (GCC) 7.3.1 20180130 (Red Hat 7.3.1-2)
30 90.76 fedora:27 : FAIL gcc (GCC) 7.3.1 20180712 (Red Hat 7.3.1-6)
31 157.29 fedora:28 : Ok gcc (GCC) 8.1.1 20180712 (Red Hat 8.1.1-5)
32 148.43 fedora:rawhide : Ok gcc (GCC) 8.0.1 20180324 (Red Hat 8.0.1-0.20)
33 43.37 gentoo-stage3-amd64:latest : Ok gcc (Gentoo 7.3.0-r3 p1.4) 7.3.0
34 43.06 mageia:5 : Ok gcc (GCC) 4.9.2
35 43.06 mageia:6 : Ok gcc (Mageia 5.5.0-1.mga6) 5.5.0
36 40.29 opensuse:13.2 : Ok gcc (SUSE Linux) 4.8.3 20140627 [gcc-4_8-branch revision 212064]
37 39.97 opensuse:42.1 : Ok gcc (SUSE Linux) 4.8.5
38 40.38 opensuse:42.2 : Ok gcc (SUSE Linux) 4.8.5
39 40.92 opensuse:42.3 : Ok gcc (SUSE Linux) 4.8.5
40 157.84 opensuse:tumbleweed : Ok gcc (SUSE Linux) 7.3.1 20180323 [gcc-7-branch revision 258812]
41 12.78 oraclelinux:6 : FAIL gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-23.0.1)
42 39.10 oraclelinux:7 : Ok gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-28.0.1)
43 12.85 ubuntu:12.04.5 : FAIL gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
44 37.24 ubuntu:14.04.4 : Ok gcc (Ubuntu 4.8.4-2ubuntu1~14.04.3) 4.8.4
45 36.18 ubuntu:14.04.4-x-linaro-arm64 : Ok aarch64-linux-gnu-gcc (Linaro GCC 5.5-2017.10) 5.5.0
46 45.56 ubuntu:16.04 : FAIL gcc (Ubuntu 5.4.0-6ubuntu1~16.04.10) 5.4.0 20160609
47 32.61 ubuntu:16.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
48 33.76 ubuntu:16.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
49 32.23 ubuntu:16.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
50 32.71 ubuntu:16.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
51 33.16 ubuntu:16.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
52 33.28 ubuntu:16.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.9) 5.4.0 20160609
53 70.61 ubuntu:16.10 : Ok gcc (Ubuntu 6.2.0-5ubuntu12) 6.2.0 20161005
54 49.60 ubuntu:17.10 : FAIL gcc (Ubuntu 7.2.0-8ubuntu3.2) 7.2.0
55 111.93 ubuntu:18.04 : Ok gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
56 37.08 ubuntu:18.04-x-arm : Ok arm-linux-gnueabihf-gcc (Ubuntu/Linaro 7.3.0-16ubuntu3) 7.3.0
57 38.00 ubuntu:18.04-x-arm64 : Ok aarch64-linux-gnu-gcc (Ubuntu/Linaro 7.3.0-16ubuntu3) 7.3.0
58 27.10 ubuntu:18.04-x-m68k : Ok m68k-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
59 35.10 ubuntu:18.04-x-powerpc : Ok powerpc-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
60 38.07 ubuntu:18.04-x-powerpc64 : Ok powerpc64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
61 38.46 ubuntu:18.04-x-powerpc64el : Ok powerpc64le-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
62 71.15 ubuntu:18.04-x-riscv64 : Ok riscv64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
63 31.69 ubuntu:18.04-x-s390 : Ok s390x-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
64 35.60 ubuntu:18.04-x-sh4 : Ok sh4-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
65 30.86 ubuntu:18.04-x-sparc64 : Ok sparc64-linux-gnu-gcc (Ubuntu 7.3.0-16ubuntu3) 7.3.0
66 105.18 ubuntu:18.10 : Ok gcc (Ubuntu 8.2.0-1ubuntu2) 8.2.0
> #ifdef HAVE_ZLIB_SUPPORT
> { "gz", gzip_decompress_to_file },
> #endif
> @@ -202,15 +207,15 @@ static const struct {
> { NULL, NULL },
> };
>
> -static bool is_supported_compression(const char *ext)
> +static int is_supported_compression(const char *ext)
> {
> unsigned i;
>
> - for (i = 0; compressions[i].fmt; i++) {
> + for (i = 1; compressions[i].fmt; i++) {
> if (!strcmp(ext, compressions[i].fmt))
> - return true;
> + return i;
> }
> - return false;
> + return COMP_ID__NONE;
> }
>
> bool is_kernel_module(const char *pathname, int cpumode)
> @@ -373,10 +378,9 @@ int __kmod_path__parse(struct kmod_path *m, const char *path,
> return 0;
> }
>
> - if (is_supported_compression(ext + 1)) {
> - m->comp = true;
> + m->comp = is_supported_compression(ext + 1);
> + if (m->comp > COMP_ID__NONE)
> ext -= 3;
> - }
>
> /* Check .ko extension only if there's enough name left. */
> if (ext > name)
> diff --git a/tools/perf/util/dso.h b/tools/perf/util/dso.h
> index 870346b333ee..7bde23f6e5a9 100644
> --- a/tools/perf/util/dso.h
> +++ b/tools/perf/util/dso.h
> @@ -262,7 +262,7 @@ int dso__decompress_kmodule_path(struct dso *dso, const char *name,
> struct kmod_path {
> char *name;
> char *ext;
> - bool comp;
> + int comp;
> bool kmod;
> };
>
> --
> 2.17.1
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