[PATCH 0/3] perf trace powerpc: Remove libaudit dependency for syscalls

[PATCH 0/3] perf trace powerpc: Remove libaudit dependency for syscalls

[Ravi Bangoria]

This is almost identical set of patches recently done for s390.

With this, user can run perf trace without libaudit on powerpc
as well. Ex,

  $ make
    ...     libaudit: [ OFF ]

  $ ./perf trace ls
    0.221 ( 0.005 ms): ls/43330 open(filename: 0xac1e2778, flags: CLOEXEC   ) = 3
    0.227 ( 0.003 ms): ls/43330 read(fd: 3, buf: 0x3ffff9c4d678, count: 832 ) = 832
    0.233 ( 0.002 ms): ls/43330 fstat(fd: 3, statbuf: 0x3ffff9c4d4b0        ) = 0
    ...

  $ ./perf trace -e "open*" ls
    0.000 ( 0.014 ms): ls/43342 open(filename: 0x793d8978, flags: CLOEXEC   ) = 3
    0.038 ( 0.006 ms): ls/43342 open(filename: 0x793f2778, flags: CLOEXEC   ) = 3
    ...

Ravi Bangoria (3):
  tools include powerpc: Grab a copy of
    arch/powerpc/include/uapi/asm/unistd.h
  perf powerpc: Generate system call table from asm/unistd.h
  perf trace powerpc: Use generated syscall table

 tools/arch/powerpc/include/uapi/asm/unistd.h       | 399 +++++++++++++++++++++
 tools/perf/Makefile.config                         |   2 +
 tools/perf/arch/powerpc/Makefile                   |  21 ++
 .../perf/arch/powerpc/entry/syscalls/mksyscalltbl  |  35 ++
 tools/perf/check-headers.sh                        |   1 +
 tools/perf/util/syscalltbl.c                       |   4 +
 6 files changed, 462 insertions(+)
 create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h
 create mode 100755 tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl

-- 
1.8.3.1

[PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Ravi Bangoria]

Will be used for generating the syscall id/string translation table.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
---
 tools/arch/powerpc/include/uapi/asm/unistd.h | 399 +++++++++++++++++++++++++++
 tools/perf/check-headers.sh                  |   1 +
 2 files changed, 400 insertions(+)
 create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h

diff --git a/tools/arch/powerpc/include/uapi/asm/unistd.h b/tools/arch/powerpc/include/uapi/asm/unistd.h
new file mode 100644
index 0000000..df8684f3
--- /dev/null
+++ b/tools/arch/powerpc/include/uapi/asm/unistd.h
@@ -0,0 +1,399 @@
+/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
+/*
+ * This file contains the system call numbers.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#ifndef _UAPI_ASM_POWERPC_UNISTD_H_
+#define _UAPI_ASM_POWERPC_UNISTD_H_
+
+
+#define __NR_restart_syscall	  0
+#define __NR_exit		  1
+#define __NR_fork		  2
+#define __NR_read		  3
+#define __NR_write		  4
+#define __NR_open		  5
+#define __NR_close		  6
+#define __NR_waitpid		  7
+#define __NR_creat		  8
+#define __NR_link		  9
+#define __NR_unlink		 10
+#define __NR_execve		 11
+#define __NR_chdir		 12
+#define __NR_time		 13
+#define __NR_mknod		 14
+#define __NR_chmod		 15
+#define __NR_lchown		 16
+#define __NR_break		 17
+#define __NR_oldstat		 18
+#define __NR_lseek		 19
+#define __NR_getpid		 20
+#define __NR_mount		 21
+#define __NR_umount		 22
+#define __NR_setuid		 23
+#define __NR_getuid		 24
+#define __NR_stime		 25
+#define __NR_ptrace		 26
+#define __NR_alarm		 27
+#define __NR_oldfstat		 28
+#define __NR_pause		 29
+#define __NR_utime		 30
+#define __NR_stty		 31
+#define __NR_gtty		 32
+#define __NR_access		 33
+#define __NR_nice		 34
+#define __NR_ftime		 35
+#define __NR_sync		 36
+#define __NR_kill		 37
+#define __NR_rename		 38
+#define __NR_mkdir		 39
+#define __NR_rmdir		 40
+#define __NR_dup		 41
+#define __NR_pipe		 42
+#define __NR_times		 43
+#define __NR_prof		 44
+#define __NR_brk		 45
+#define __NR_setgid		 46
+#define __NR_getgid		 47
+#define __NR_signal		 48
+#define __NR_geteuid		 49
+#define __NR_getegid		 50
+#define __NR_acct		 51
+#define __NR_umount2		 52
+#define __NR_lock		 53
+#define __NR_ioctl		 54
+#define __NR_fcntl		 55
+#define __NR_mpx		 56
+#define __NR_setpgid		 57
+#define __NR_ulimit		 58
+#define __NR_oldolduname	 59
+#define __NR_umask		 60
+#define __NR_chroot		 61
+#define __NR_ustat		 62
+#define __NR_dup2		 63
+#define __NR_getppid		 64
+#define __NR_getpgrp		 65
+#define __NR_setsid		 66
+#define __NR_sigaction		 67
+#define __NR_sgetmask		 68
+#define __NR_ssetmask		 69
+#define __NR_setreuid		 70
+#define __NR_setregid		 71
+#define __NR_sigsuspend		 72
+#define __NR_sigpending		 73
+#define __NR_sethostname	 74
+#define __NR_setrlimit		 75
+#define __NR_getrlimit		 76
+#define __NR_getrusage		 77
+#define __NR_gettimeofday	 78
+#define __NR_settimeofday	 79
+#define __NR_getgroups		 80
+#define __NR_setgroups		 81
+#define __NR_select		 82
+#define __NR_symlink		 83
+#define __NR_oldlstat		 84
+#define __NR_readlink		 85
+#define __NR_uselib		 86
+#define __NR_swapon		 87
+#define __NR_reboot		 88
+#define __NR_readdir		 89
+#define __NR_mmap		 90
+#define __NR_munmap		 91
+#define __NR_truncate		 92
+#define __NR_ftruncate		 93
+#define __NR_fchmod		 94
+#define __NR_fchown		 95
+#define __NR_getpriority	 96
+#define __NR_setpriority	 97
+#define __NR_profil		 98
+#define __NR_statfs		 99
+#define __NR_fstatfs		100
+#define __NR_ioperm		101
+#define __NR_socketcall		102
+#define __NR_syslog		103
+#define __NR_setitimer		104
+#define __NR_getitimer		105
+#define __NR_stat		106
+#define __NR_lstat		107
+#define __NR_fstat		108
+#define __NR_olduname		109
+#define __NR_iopl		110
+#define __NR_vhangup		111
+#define __NR_idle		112
+#define __NR_vm86		113
+#define __NR_wait4		114
+#define __NR_swapoff		115
+#define __NR_sysinfo		116
+#define __NR_ipc		117
+#define __NR_fsync		118
+#define __NR_sigreturn		119
+#define __NR_clone		120
+#define __NR_setdomainname	121
+#define __NR_uname		122
+#define __NR_modify_ldt		123
+#define __NR_adjtimex		124
+#define __NR_mprotect		125
+#define __NR_sigprocmask	126
+#define __NR_create_module	127
+#define __NR_init_module	128
+#define __NR_delete_module	129
+#define __NR_get_kernel_syms	130
+#define __NR_quotactl		131
+#define __NR_getpgid		132
+#define __NR_fchdir		133
+#define __NR_bdflush		134
+#define __NR_sysfs		135
+#define __NR_personality	136
+#define __NR_afs_syscall	137 /* Syscall for Andrew File System */
+#define __NR_setfsuid		138
+#define __NR_setfsgid		139
+#define __NR__llseek		140
+#define __NR_getdents		141
+#define __NR__newselect		142
+#define __NR_flock		143
+#define __NR_msync		144
+#define __NR_readv		145
+#define __NR_writev		146
+#define __NR_getsid		147
+#define __NR_fdatasync		148
+#define __NR__sysctl		149
+#define __NR_mlock		150
+#define __NR_munlock		151
+#define __NR_mlockall		152
+#define __NR_munlockall		153
+#define __NR_sched_setparam		154
+#define __NR_sched_getparam		155
+#define __NR_sched_setscheduler		156
+#define __NR_sched_getscheduler		157
+#define __NR_sched_yield		158
+#define __NR_sched_get_priority_max	159
+#define __NR_sched_get_priority_min	160
+#define __NR_sched_rr_get_interval	161
+#define __NR_nanosleep		162
+#define __NR_mremap		163
+#define __NR_setresuid		164
+#define __NR_getresuid		165
+#define __NR_query_module	166
+#define __NR_poll		167
+#define __NR_nfsservctl		168
+#define __NR_setresgid		169
+#define __NR_getresgid		170
+#define __NR_prctl		171
+#define __NR_rt_sigreturn	172
+#define __NR_rt_sigaction	173
+#define __NR_rt_sigprocmask	174
+#define __NR_rt_sigpending	175
+#define __NR_rt_sigtimedwait	176
+#define __NR_rt_sigqueueinfo	177
+#define __NR_rt_sigsuspend	178
+#define __NR_pread64		179
+#define __NR_pwrite64		180
+#define __NR_chown		181
+#define __NR_getcwd		182
+#define __NR_capget		183
+#define __NR_capset		184
+#define __NR_sigaltstack	185
+#define __NR_sendfile		186
+#define __NR_getpmsg		187	/* some people actually want streams */
+#define __NR_putpmsg		188	/* some people actually want streams */
+#define __NR_vfork		189
+#define __NR_ugetrlimit		190	/* SuS compliant getrlimit */
+#define __NR_readahead		191
+#ifndef __powerpc64__			/* these are 32-bit only */
+#define __NR_mmap2		192
+#define __NR_truncate64		193
+#define __NR_ftruncate64	194
+#define __NR_stat64		195
+#define __NR_lstat64		196
+#define __NR_fstat64		197
+#endif
+#define __NR_pciconfig_read	198
+#define __NR_pciconfig_write	199
+#define __NR_pciconfig_iobase	200
+#define __NR_multiplexer	201
+#define __NR_getdents64		202
+#define __NR_pivot_root		203
+#ifndef __powerpc64__
+#define __NR_fcntl64		204
+#endif
+#define __NR_madvise		205
+#define __NR_mincore		206
+#define __NR_gettid		207
+#define __NR_tkill		208
+#define __NR_setxattr		209
+#define __NR_lsetxattr		210
+#define __NR_fsetxattr		211
+#define __NR_getxattr		212
+#define __NR_lgetxattr		213
+#define __NR_fgetxattr		214
+#define __NR_listxattr		215
+#define __NR_llistxattr		216
+#define __NR_flistxattr		217
+#define __NR_removexattr	218
+#define __NR_lremovexattr	219
+#define __NR_fremovexattr	220
+#define __NR_futex		221
+#define __NR_sched_setaffinity	222
+#define __NR_sched_getaffinity	223
+/* 224 currently unused */
+#define __NR_tuxcall		225
+#ifndef __powerpc64__
+#define __NR_sendfile64		226
+#endif
+#define __NR_io_setup		227
+#define __NR_io_destroy		228
+#define __NR_io_getevents	229
+#define __NR_io_submit		230
+#define __NR_io_cancel		231
+#define __NR_set_tid_address	232
+#define __NR_fadvise64		233
+#define __NR_exit_group		234
+#define __NR_lookup_dcookie	235
+#define __NR_epoll_create	236
+#define __NR_epoll_ctl		237
+#define __NR_epoll_wait		238
+#define __NR_remap_file_pages	239
+#define __NR_timer_create	240
+#define __NR_timer_settime	241
+#define __NR_timer_gettime	242
+#define __NR_timer_getoverrun	243
+#define __NR_timer_delete	244
+#define __NR_clock_settime	245
+#define __NR_clock_gettime	246
+#define __NR_clock_getres	247
+#define __NR_clock_nanosleep	248
+#define __NR_swapcontext	249
+#define __NR_tgkill		250
+#define __NR_utimes		251
+#define __NR_statfs64		252
+#define __NR_fstatfs64		253
+#ifndef __powerpc64__
+#define __NR_fadvise64_64	254
+#endif
+#define __NR_rtas		255
+#define __NR_sys_debug_setcontext 256
+/* Number 257 is reserved for vserver */
+#define __NR_migrate_pages	258
+#define __NR_mbind		259
+#define __NR_get_mempolicy	260
+#define __NR_set_mempolicy	261
+#define __NR_mq_open		262
+#define __NR_mq_unlink		263
+#define __NR_mq_timedsend	264
+#define __NR_mq_timedreceive	265
+#define __NR_mq_notify		266
+#define __NR_mq_getsetattr	267
+#define __NR_kexec_load		268
+#define __NR_add_key		269
+#define __NR_request_key	270
+#define __NR_keyctl		271
+#define __NR_waitid		272
+#define __NR_ioprio_set		273
+#define __NR_ioprio_get		274
+#define __NR_inotify_init	275
+#define __NR_inotify_add_watch	276
+#define __NR_inotify_rm_watch	277
+#define __NR_spu_run		278
+#define __NR_spu_create		279
+#define __NR_pselect6		280
+#define __NR_ppoll		281
+#define __NR_unshare		282
+#define __NR_splice		283
+#define __NR_tee		284
+#define __NR_vmsplice		285
+#define __NR_openat		286
+#define __NR_mkdirat		287
+#define __NR_mknodat		288
+#define __NR_fchownat		289
+#define __NR_futimesat		290
+#ifdef __powerpc64__
+#define __NR_newfstatat		291
+#else
+#define __NR_fstatat64		291
+#endif
+#define __NR_unlinkat		292
+#define __NR_renameat		293
+#define __NR_linkat		294
+#define __NR_symlinkat		295
+#define __NR_readlinkat		296
+#define __NR_fchmodat		297
+#define __NR_faccessat		298
+#define __NR_get_robust_list	299
+#define __NR_set_robust_list	300
+#define __NR_move_pages		301
+#define __NR_getcpu		302
+#define __NR_epoll_pwait	303
+#define __NR_utimensat		304
+#define __NR_signalfd		305
+#define __NR_timerfd_create	306
+#define __NR_eventfd		307
+#define __NR_sync_file_range2	308
+#define __NR_fallocate		309
+#define __NR_subpage_prot	310
+#define __NR_timerfd_settime	311
+#define __NR_timerfd_gettime	312
+#define __NR_signalfd4		313
+#define __NR_eventfd2		314
+#define __NR_epoll_create1	315
+#define __NR_dup3		316
+#define __NR_pipe2		317
+#define __NR_inotify_init1	318
+#define __NR_perf_event_open	319
+#define __NR_preadv		320
+#define __NR_pwritev		321
+#define __NR_rt_tgsigqueueinfo	322
+#define __NR_fanotify_init	323
+#define __NR_fanotify_mark	324
+#define __NR_prlimit64		325
+#define __NR_socket		326
+#define __NR_bind		327
+#define __NR_connect		328
+#define __NR_listen		329
+#define __NR_accept		330
+#define __NR_getsockname	331
+#define __NR_getpeername	332
+#define __NR_socketpair		333
+#define __NR_send		334
+#define __NR_sendto		335
+#define __NR_recv		336
+#define __NR_recvfrom		337
+#define __NR_shutdown		338
+#define __NR_setsockopt		339
+#define __NR_getsockopt		340
+#define __NR_sendmsg		341
+#define __NR_recvmsg		342
+#define __NR_recvmmsg		343
+#define __NR_accept4		344
+#define __NR_name_to_handle_at	345
+#define __NR_open_by_handle_at	346
+#define __NR_clock_adjtime	347
+#define __NR_syncfs		348
+#define __NR_sendmmsg		349
+#define __NR_setns		350
+#define __NR_process_vm_readv	351
+#define __NR_process_vm_writev	352
+#define __NR_finit_module	353
+#define __NR_kcmp		354
+#define __NR_sched_setattr	355
+#define __NR_sched_getattr	356
+#define __NR_renameat2		357
+#define __NR_seccomp		358
+#define __NR_getrandom		359
+#define __NR_memfd_create	360
+#define __NR_bpf		361
+#define __NR_execveat		362
+#define __NR_switch_endian	363
+#define __NR_userfaultfd	364
+#define __NR_membarrier		365
+#define __NR_mlock2		378
+#define __NR_copy_file_range	379
+#define __NR_preadv2		380
+#define __NR_pwritev2		381
+#define __NR_kexec_file_load	382
+#define __NR_statx		383
+
+#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 51abdb0..9dcc900 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -43,6 +43,7 @@ arch/parisc/include/uapi/asm/errno.h
 arch/powerpc/include/uapi/asm/errno.h
 arch/sparc/include/uapi/asm/errno.h
 arch/x86/include/uapi/asm/errno.h
+arch/powerpc/include/uapi/asm/unistd.h
 include/asm-generic/bitops/arch_hweight.h
 include/asm-generic/bitops/const_hweight.h
 include/asm-generic/bitops/__fls.h
-- 
1.8.3.1

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Arnaldo Carvalho de Melo]

Em Mon, Jan 29, 2018 at 02:04:15PM +0530, Ravi Bangoria escreveu:
> Will be used for generating the syscall id/string translation table.
> 
> Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
> ---
>  tools/arch/powerpc/include/uapi/asm/unistd.h | 399 +++++++++++++++++++++++++++
>  tools/perf/check-headers.sh                  |   1 +
>  2 files changed, 400 insertions(+)
>  create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h

Not building on a cross-compiling environment (ubuntu 16.04), I'm checking...

  CC       /tmp/build/perf/util/syscalltbl.o
util/syscalltbl.c: In function 'syscalltbl__init_native':
util/syscalltbl.c:64:19: error: 'syscalltbl_native_max_id' undeclared (first use in this function)
  for (i = 0; i <= syscalltbl_native_max_id; ++i)
                   ^
util/syscalltbl.c:64:19: note: each undeclared identifier is reported only once for each function it appears in
util/syscalltbl.c:65:7: error: 'syscalltbl_native' undeclared (first use in this function)
   if (syscalltbl_native[i])
       ^
util/syscalltbl.c: In function 'syscalltbl__name':
util/syscalltbl.c:105:15: error: 'syscalltbl_native_max_id' undeclared (first use in this function)
  return id <= syscalltbl_native_max_id ? syscalltbl_native[id]: NULL;
               ^
util/syscalltbl.c:105:42: error: 'syscalltbl_native' undeclared (first use in this function)
  return id <= syscalltbl_native_max_id ? syscalltbl_native[id]: NULL;
                                          ^
util/syscalltbl.c:106:1: error: control reaches end of non-void function [-Werror=return-type]
 }
 ^
cc1: all warnings being treated as errors
mv: cannot stat '/tmp/build/perf/util/.syscalltbl.o.tmp': No such file or directory
/git/linux/tools/build/Makefile.build:96: recipe for target '/tmp/build/perf/util/syscalltbl.o' failed
make[4]: *** [/tmp/build/perf/util/syscalltbl.o] Error 1
make[4]: *** Waiting for unfinished jobs....
  CC       /tmp/build/perf/tests/sample-parsing.o
  CC       /tmp/build/perf/tests/parse-no-sample-id-all.o
  CC       /tmp/build/perf/tests/kmod-path.o
  CC       /tmp/build/perf/tests/thread-map.o
  CC       /tmp/build/perf/tests/llvm.o
  CC       /tmp/build/perf/tests/bpf.o
  CC       /tmp/build/perf/tests/topology.o
  CC       /tmp/build/perf/tests/mem.o
  CC       /tmp/build/perf/tests/cpumap.o
  CC       /tmp/build/perf/tests/stat.o
/git/linux/tools/build/Makefile.build:139: recipe for target 'util' failed
make[3]: *** [util] Error 2
Makefile.perf:629: recipe for target '/tmp/build/perf/libperf-in.o' failed
make[2]: *** [/tmp/build/perf/libperf-in.o] Error 2
make[2]: *** Waiting for unfinished jobs....
  CC       /tmp/build/perf/tests/event_update.o

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Arnaldo Carvalho de Melo]

Em Fri, Feb 16, 2018 at 01:52:45PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Mon, Jan 29, 2018 at 02:04:15PM +0530, Ravi Bangoria escreveu:
> > Will be used for generating the syscall id/string translation table.
> > 
> > Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
> > ---
> >  tools/arch/powerpc/include/uapi/asm/unistd.h | 399 +++++++++++++++++++++++++++
> >  tools/perf/check-headers.sh                  |   1 +
> >  2 files changed, 400 insertions(+)
> >  create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h
> 
> Not building on a cross-compiling environment (ubuntu 16.04), I'm checking...

BTW, details about that environment:

  46    29.83 ubuntu:16.04-x-powerpc        : FAIL powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609

 
>   CC       /tmp/build/perf/util/syscalltbl.o
> util/syscalltbl.c: In function 'syscalltbl__init_native':
> util/syscalltbl.c:64:19: error: 'syscalltbl_native_max_id' undeclared (first use in this function)
>   for (i = 0; i <= syscalltbl_native_max_id; ++i)
>                    ^
> util/syscalltbl.c:64:19: note: each undeclared identifier is reported only once for each function it appears in
> util/syscalltbl.c:65:7: error: 'syscalltbl_native' undeclared (first use in this function)
>    if (syscalltbl_native[i])
>        ^
> util/syscalltbl.c: In function 'syscalltbl__name':
> util/syscalltbl.c:105:15: error: 'syscalltbl_native_max_id' undeclared (first use in this function)
>   return id <= syscalltbl_native_max_id ? syscalltbl_native[id]: NULL;
>                ^
> util/syscalltbl.c:105:42: error: 'syscalltbl_native' undeclared (first use in this function)
>   return id <= syscalltbl_native_max_id ? syscalltbl_native[id]: NULL;
>                                           ^
> util/syscalltbl.c:106:1: error: control reaches end of non-void function [-Werror=return-type]
>  }
>  ^
> cc1: all warnings being treated as errors
> mv: cannot stat '/tmp/build/perf/util/.syscalltbl.o.tmp': No such file or directory
> /git/linux/tools/build/Makefile.build:96: recipe for target '/tmp/build/perf/util/syscalltbl.o' failed
> make[4]: *** [/tmp/build/perf/util/syscalltbl.o] Error 1
> make[4]: *** Waiting for unfinished jobs....
>   CC       /tmp/build/perf/tests/sample-parsing.o
>   CC       /tmp/build/perf/tests/parse-no-sample-id-all.o
>   CC       /tmp/build/perf/tests/kmod-path.o
>   CC       /tmp/build/perf/tests/thread-map.o
>   CC       /tmp/build/perf/tests/llvm.o
>   CC       /tmp/build/perf/tests/bpf.o
>   CC       /tmp/build/perf/tests/topology.o
>   CC       /tmp/build/perf/tests/mem.o
>   CC       /tmp/build/perf/tests/cpumap.o
>   CC       /tmp/build/perf/tests/stat.o
> /git/linux/tools/build/Makefile.build:139: recipe for target 'util' failed
> make[3]: *** [util] Error 2
> Makefile.perf:629: recipe for target '/tmp/build/perf/libperf-in.o' failed
> make[2]: *** [/tmp/build/perf/libperf-in.o] Error 2
> make[2]: *** Waiting for unfinished jobs....
>   CC       /tmp/build/perf/tests/event_update.o

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Arnaldo Carvalho de Melo]

Em Fri, Feb 16, 2018 at 01:56:16PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Feb 16, 2018 at 01:52:45PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Mon, Jan 29, 2018 at 02:04:15PM +0530, Ravi Bangoria escreveu:
> > > Will be used for generating the syscall id/string translation table.
> > > 
> > > Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
> > > ---
> > >  tools/arch/powerpc/include/uapi/asm/unistd.h | 399 +++++++++++++++++++++++++++
> > >  tools/perf/check-headers.sh                  |   1 +
> > >  2 files changed, 400 insertions(+)
> > >  create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h
> > 
> > Not building on a cross-compiling environment (ubuntu 16.04), I'm checking...
> 
> BTW, details about that environment:
> 
>   46    29.83 ubuntu:16.04-x-powerpc        : FAIL powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609

So, you did it just for ppc64? Because...

  46    29.83 ubuntu:16.04-x-powerpc        : FAIL powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
  47    69.81 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
  48    68.35 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609

Its just on ppc32 that his is falling apart.
 
>  
> >   CC       /tmp/build/perf/util/syscalltbl.o
> > util/syscalltbl.c: In function 'syscalltbl__init_native':
> > util/syscalltbl.c:64:19: error: 'syscalltbl_native_max_id' undeclared (first use in this function)
> >   for (i = 0; i <= syscalltbl_native_max_id; ++i)
> >                    ^
> > util/syscalltbl.c:64:19: note: each undeclared identifier is reported only once for each function it appears in
> > util/syscalltbl.c:65:7: error: 'syscalltbl_native' undeclared (first use in this function)
> >    if (syscalltbl_native[i])
> >        ^
> > util/syscalltbl.c: In function 'syscalltbl__name':
> > util/syscalltbl.c:105:15: error: 'syscalltbl_native_max_id' undeclared (first use in this function)
> >   return id <= syscalltbl_native_max_id ? syscalltbl_native[id]: NULL;
> >                ^
> > util/syscalltbl.c:105:42: error: 'syscalltbl_native' undeclared (first use in this function)
> >   return id <= syscalltbl_native_max_id ? syscalltbl_native[id]: NULL;
> >                                           ^
> > util/syscalltbl.c:106:1: error: control reaches end of non-void function [-Werror=return-type]
> >  }
> >  ^
> > cc1: all warnings being treated as errors
> > mv: cannot stat '/tmp/build/perf/util/.syscalltbl.o.tmp': No such file or directory
> > /git/linux/tools/build/Makefile.build:96: recipe for target '/tmp/build/perf/util/syscalltbl.o' failed
> > make[4]: *** [/tmp/build/perf/util/syscalltbl.o] Error 1
> > make[4]: *** Waiting for unfinished jobs....
> >   CC       /tmp/build/perf/tests/sample-parsing.o
> >   CC       /tmp/build/perf/tests/parse-no-sample-id-all.o
> >   CC       /tmp/build/perf/tests/kmod-path.o
> >   CC       /tmp/build/perf/tests/thread-map.o
> >   CC       /tmp/build/perf/tests/llvm.o
> >   CC       /tmp/build/perf/tests/bpf.o
> >   CC       /tmp/build/perf/tests/topology.o
> >   CC       /tmp/build/perf/tests/mem.o
> >   CC       /tmp/build/perf/tests/cpumap.o
> >   CC       /tmp/build/perf/tests/stat.o
> > /git/linux/tools/build/Makefile.build:139: recipe for target 'util' failed
> > make[3]: *** [util] Error 2
> > Makefile.perf:629: recipe for target '/tmp/build/perf/libperf-in.o' failed
> > make[2]: *** [/tmp/build/perf/libperf-in.o] Error 2
> > make[2]: *** Waiting for unfinished jobs....
> >   CC       /tmp/build/perf/tests/event_update.o

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Arnaldo Carvalho de Melo]

Em Fri, Feb 16, 2018 at 02:03:36PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Feb 16, 2018 at 01:56:16PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Fri, Feb 16, 2018 at 01:52:45PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Mon, Jan 29, 2018 at 02:04:15PM +0530, Ravi Bangoria escreveu:
> > > > Will be used for generating the syscall id/string translation table.
> > > > 
> > > > Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
> > > > ---
> > > >  tools/arch/powerpc/include/uapi/asm/unistd.h | 399 +++++++++++++++++++++++++++
> > > >  tools/perf/check-headers.sh                  |   1 +
> > > >  2 files changed, 400 insertions(+)
> > > >  create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h
> > > 
> > > Not building on a cross-compiling environment (ubuntu 16.04), I'm checking...
> > 
> > BTW, details about that environment:
> > 
> >   46    29.83 ubuntu:16.04-x-powerpc        : FAIL powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> 
> So, you did it just for ppc64? Because...
> 
>   46    29.83 ubuntu:16.04-x-powerpc        : FAIL powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
>   47    69.81 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
>   48    68.35 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> 
> Its just on ppc32 that his is falling apart.

So, $(SRCARCH) maps to both powerpc and powerpc64m which will set
NO_SYSCALL_TABLE to zero, thus linking against
tools/perf/util/syscalltbl.o, which will include the generated
syscalls_64.c only for ppc64, b00m.

+++ b/tools/perf/Makefile.config
@@ -27,6 +27,8 @@ NO_SYSCALL_TABLE := 1
 # Additional ARCH settings for ppc
 ifeq ($(SRCARCH),powerpc)
   NO_PERF_REGS := 0
+  NO_SYSCALL_TABLE := 0
+  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
   LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
 endif
 
+++ b/tools/perf/util/syscalltbl.c
 static const char **syscalltbl_native = syscalltbl_s390_64;
+#elif defined(__powerpc64__)
+#include <asm/syscalls_64.c>
+const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_64_MAX_ID;
+static const char **syscalltbl_native = syscalltbl_powerpc_64;
 #endif

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Arnaldo Carvalho de Melo]

Em Fri, Feb 16, 2018 at 02:08:12PM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Fri, Feb 16, 2018 at 02:03:36PM -0300, Arnaldo Carvalho de Melo escreveu:
> > Em Fri, Feb 16, 2018 at 01:56:16PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > Em Fri, Feb 16, 2018 at 01:52:45PM -0300, Arnaldo Carvalho de Melo escreveu:
> > > > Em Mon, Jan 29, 2018 at 02:04:15PM +0530, Ravi Bangoria escreveu:
> > > > > Will be used for generating the syscall id/string translation table.
> > > > > 
> > > > > Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
> > > > > ---
> > > > >  tools/arch/powerpc/include/uapi/asm/unistd.h | 399 +++++++++++++++++++++++++++
> > > > >  tools/perf/check-headers.sh                  |   1 +
> > > > >  2 files changed, 400 insertions(+)
> > > > >  create mode 100644 tools/arch/powerpc/include/uapi/asm/unistd.h
> > > > 
> > > > Not building on a cross-compiling environment (ubuntu 16.04), I'm checking...
> > > 
> > > BTW, details about that environment:
> > > 
> > >   46    29.83 ubuntu:16.04-x-powerpc        : FAIL powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> > 
> > So, you did it just for ppc64? Because...
> > 
> >   46    29.83 ubuntu:16.04-x-powerpc        : FAIL powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> >   47    69.81 ubuntu:16.04-x-powerpc64      : Ok   powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
> >   48    68.35 ubuntu:16.04-x-powerpc64el    : Ok   powerpc64le-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> > 
> > Its just on ppc32 that his is falling apart.
> 
> So, $(SRCARCH) maps to both powerpc and powerpc64m which will set
> NO_SYSCALL_TABLE to zero, thus linking against
> tools/perf/util/syscalltbl.o, which will include the generated
> syscalls_64.c only for ppc64, b00m.

Ok, so after looking at:

commit eef289f79c03ba5ca197e2ac1e33906175f01c39
Author: Paul Mackerras <paulus@samba.org>
Date:   Mon Oct 10 22:56:11 2005 +1000

    powerpc: Merge asm/unistd.h
    
    Signed-off-by: Paul Mackerras <paulus@samba.org>

----

Humm, we need to create two tables, one for 32-bit and another for 64,
even with ppc not having (AFAIK) clashes in syscall numbers for 32/64...

Trying to do it now.

- Arnaldo

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Arnaldo Carvalho de Melo]

Em Fri, Feb 16, 2018 at 02:29:01PM -0300, Arnaldo Carvalho de Melo escreveu:
> Humm, we need to create two tables, one for 32-bit and another for 64,
> even with ppc not having (AFAIK) clashes in syscall numbers for 32/64...
> 
> Trying to do it now.

Now seems to work, take a look at my perf/core branch, should be one of the first few csets.

perfbuilder@cc1a85517216:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c 
	[192] = "mmap2",
perfbuilder@cc1a85517216:/git/perf$ powerpc-linux-gnu-gcc --version
powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
perfbuilder@cc1a85517216:/git/perf$

perfbuilder@9d7fc9dcfb73:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c
	[192] = "mmap2",
perfbuilder@9d7fc9dcfb73:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_64.c
perfbuilder@9d7fc9dcfb73:/git/perf$ powerpc64-linux-gnu-gcc --version
powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
perfbuilder@9d7fc9dcfb73:/git/perf$ 

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Ravi Bangoria]

Oops.. Really sorry about that.

I've tested acme/perf/core on ubuntu ppc32 with and without libaudit-dev
and it's working fine.

Thank you very much for fixing it,
Ravi

On 02/16/2018 11:20 PM, Arnaldo Carvalho de Melo wrote:
> Em Fri, Feb 16, 2018 at 02:29:01PM -0300, Arnaldo Carvalho de Melo escreveu:
>> Humm, we need to create two tables, one for 32-bit and another for 64,
>> even with ppc not having (AFAIK) clashes in syscall numbers for 32/64...
>>
>> Trying to do it now.
> Now seems to work, take a look at my perf/core branch, should be one of the first few csets.
>
> perfbuilder@cc1a85517216:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c 
> 	[192] = "mmap2",
> perfbuilder@cc1a85517216:/git/perf$ powerpc-linux-gnu-gcc --version
> powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> perfbuilder@cc1a85517216:/git/perf$
>
> perfbuilder@9d7fc9dcfb73:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c
> 	[192] = "mmap2",
> perfbuilder@9d7fc9dcfb73:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_64.c
> perfbuilder@9d7fc9dcfb73:/git/perf$ powerpc64-linux-gnu-gcc --version
> powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
> perfbuilder@9d7fc9dcfb73:/git/perf$ 
>

Re: [PATCH 1/3] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[Michael Ellerman]

Arnaldo Carvalho de Melo <acme@kernel.org> writes:

> Em Fri, Feb 16, 2018 at 02:29:01PM -0300, Arnaldo Carvalho de Melo escreveu:
>> Humm, we need to create two tables, one for 32-bit and another for 64,
>> even with ppc not having (AFAIK) clashes in syscall numbers for 32/64...
>> 
>> Trying to do it now.
>
> Now seems to work, take a look at my perf/core branch, should be one of the first few csets.

LGTM. Thanks for fixing this up.

cheers

> perfbuilder@cc1a85517216:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c 
> 	[192] = "mmap2",
> perfbuilder@cc1a85517216:/git/perf$ powerpc-linux-gnu-gcc --version
> powerpc-linux-gnu-gcc (Ubuntu 5.4.0-6ubuntu1~16.04.4) 5.4.0 20160609
> perfbuilder@cc1a85517216:/git/perf$
>
> perfbuilder@9d7fc9dcfb73:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_32.c
> 	[192] = "mmap2",
> perfbuilder@9d7fc9dcfb73:/git/perf$ grep 192 /tmp/build/perf/arch/powerpc/include/generated/asm/syscalls_64.c
> perfbuilder@9d7fc9dcfb73:/git/perf$ powerpc64-linux-gnu-gcc --version
> powerpc64-linux-gnu-gcc (Ubuntu/IBM 5.4.0-6ubuntu1~16.04.1) 5.4.0 20160609
> perfbuilder@9d7fc9dcfb73:/git/perf$ 

[tip:perf/core] tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

[tip-bot for Ravi Bangoria]

Commit-ID:  1350fb7d1b484afc1556579fb27400d036683453
Gitweb:     https://git.kernel.org/tip/1350fb7d1b484afc1556579fb27400d036683453
Author:     Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
AuthorDate: Mon, 29 Jan 2018 14:04:15 +0530
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 16 Feb 2018 14:55:47 -0300

tools include powerpc: Grab a copy of arch/powerpc/include/uapi/asm/unistd.h

Will be used for generating the syscall id/string translation table.

Committer notes:

Update it already to catch with these csets applied since Ravi first
submitted this patch:

  3350eb2ea127 powerpc: sys_pkey_mprotect() system call
  9499ec1b5e82 powerpc: sys_pkey_alloc() and sys_pkey_free() system calls

So now 'perf trace' on ppc now knows about the pkey_ syscals.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20180129083417.31240-2-ravi.bangoria@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 {arch => tools/arch}/powerpc/include/uapi/asm/unistd.h | 0
 tools/perf/check-headers.sh                            | 1 +
 2 files changed, 1 insertion(+)

diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/tools/arch/powerpc/include/uapi/asm/unistd.h
similarity index 100%
copy from arch/powerpc/include/uapi/asm/unistd.h
copy to tools/arch/powerpc/include/uapi/asm/unistd.h
diff --git a/tools/perf/check-headers.sh b/tools/perf/check-headers.sh
index 790ec25..bf206ff 100755
--- a/tools/perf/check-headers.sh
+++ b/tools/perf/check-headers.sh
@@ -42,6 +42,7 @@ arch/parisc/include/uapi/asm/errno.h
 arch/powerpc/include/uapi/asm/errno.h
 arch/sparc/include/uapi/asm/errno.h
 arch/x86/include/uapi/asm/errno.h
+arch/powerpc/include/uapi/asm/unistd.h
 include/asm-generic/bitops/arch_hweight.h
 include/asm-generic/bitops/const_hweight.h
 include/asm-generic/bitops/__fls.h

[PATCH 2/3] perf powerpc: Generate system call table from asm/unistd.h

[Ravi Bangoria]

This should speed up accessing new system calls introduced with
the kernel rather than waiting for libaudit updates to include
them.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
---
 tools/perf/arch/powerpc/Makefile                   | 21 +++++++++++++
 .../perf/arch/powerpc/entry/syscalls/mksyscalltbl  | 35 ++++++++++++++++++++++
 2 files changed, 56 insertions(+)
 create mode 100755 tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl

diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile
index 42dab7c..c93e8f4 100644
--- a/tools/perf/arch/powerpc/Makefile
+++ b/tools/perf/arch/powerpc/Makefile
@@ -6,3 +6,24 @@ endif
 HAVE_KVM_STAT_SUPPORT := 1
 PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
 PERF_HAVE_JITDUMP := 1
+
+#
+# Syscall table generation for perf
+#
+
+out    := $(OUTPUT)arch/powerpc/include/generated/asm
+header := $(out)/syscalls_64.c
+sysdef := $(srctree)/tools/arch/powerpc/include/uapi/asm/unistd.h
+sysprf := $(srctree)/tools/perf/arch/powerpc/entry/syscalls/
+systbl := $(sysprf)/mksyscalltbl
+
+# Create output directory if not already present
+_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
+
+$(header): $(sysdef) $(systbl)
+	$(Q)$(SHELL) '$(systbl)' '$(CC)' $(sysdef) > $@
+
+clean::
+	$(call QUIET_CLEAN, powerpc) $(RM) $(header)
+
+archheaders: $(header)
diff --git a/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
new file mode 100755
index 0000000..975947c
--- /dev/null
+++ b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
@@ -0,0 +1,35 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Generate system call table for perf. Derived from
+# s390 script.
+#
+# Copyright IBM Corp. 2017
+# Author(s):  Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+# Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
+
+gcc=$1
+input=$2
+
+if ! test -r $input; then
+	echo "Could not read input file" >&2
+	exit 1
+fi
+
+create_table()
+{
+	local max_nr
+
+	echo 'static const char *syscalltbl_powerpc_64[] = {'
+	while read sc nr; do
+		printf '\t[%d] = "%s",\n' $nr $sc
+		max_nr=$nr
+	done
+	echo '};'
+	echo "#define SYSCALLTBL_POWERPC_64_MAX_ID $max_nr"
+}
+
+$gcc -m64 -E -dM -x c  $input	       \
+	|sed -ne 's/^#define __NR_//p' \
+	|sort -t' ' -k2 -nu	       \
+	|create_table
-- 
1.8.3.1

[tip:perf/core] perf powerpc: Generate system call table from asm/unistd.h

[tip-bot for Ravi Bangoria]

Commit-ID:  8e2ff72aa35e1a8a53894ae46751a83543338e14
Gitweb:     https://git.kernel.org/tip/8e2ff72aa35e1a8a53894ae46751a83543338e14
Author:     Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
AuthorDate: Mon, 29 Jan 2018 14:04:16 +0530
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 16 Feb 2018 14:55:48 -0300

perf powerpc: Generate system call table from asm/unistd.h

This should speed up accessing new system calls introduced with the
kernel rather than waiting for libaudit updates to include them.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20180129083417.31240-3-ravi.bangoria@linux.vnet.ibm.com
[ Made it generate syscall_32.c as well to fix the build on 32-bit ppc ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/arch/powerpc/Makefile                   | 25 +++++++++++++++
 .../perf/arch/powerpc/entry/syscalls/mksyscalltbl  | 37 ++++++++++++++++++++++
 2 files changed, 62 insertions(+)

diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile
index 42dab7c..a111239 100644
--- a/tools/perf/arch/powerpc/Makefile
+++ b/tools/perf/arch/powerpc/Makefile
@@ -6,3 +6,28 @@ endif
 HAVE_KVM_STAT_SUPPORT := 1
 PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1
 PERF_HAVE_JITDUMP := 1
+
+#
+# Syscall table generation for perf
+#
+
+out    := $(OUTPUT)arch/powerpc/include/generated/asm
+header32 := $(out)/syscalls_32.c
+header64 := $(out)/syscalls_64.c
+sysdef := $(srctree)/tools/arch/powerpc/include/uapi/asm/unistd.h
+sysprf := $(srctree)/tools/perf/arch/powerpc/entry/syscalls/
+systbl := $(sysprf)/mksyscalltbl
+
+# Create output directory if not already present
+_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
+
+$(header64): $(sysdef) $(systbl)
+	$(Q)$(SHELL) '$(systbl)' '64' '$(CC)' $(sysdef) > $@
+
+$(header32): $(sysdef) $(systbl)
+	$(Q)$(SHELL) '$(systbl)' '32' '$(CC)' $(sysdef) > $@
+
+clean::
+	$(call QUIET_CLEAN, powerpc) $(RM) $(header32) $(header64)
+
+archheaders: $(header32) $(header64)
diff --git a/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
new file mode 100755
index 0000000..ef52e1d
--- /dev/null
+++ b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
@@ -0,0 +1,37 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# Generate system call table for perf. Derived from
+# s390 script.
+#
+# Copyright IBM Corp. 2017
+# Author(s):  Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
+# Changed by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
+
+wordsize=$1
+gcc=$2
+input=$3
+
+if ! test -r $input; then
+	echo "Could not read input file" >&2
+	exit 1
+fi
+
+create_table()
+{
+	local wordsize=$1
+	local max_nr
+
+	echo "static const char *syscalltbl_powerpc_${wordsize}[] = {"
+	while read sc nr; do
+		printf '\t[%d] = "%s",\n' $nr $sc
+		max_nr=$nr
+	done
+	echo '};'
+	echo "#define SYSCALLTBL_POWERPC_${wordsize}_MAX_ID $max_nr"
+}
+
+$gcc -m${wordsize} -E -dM -x c  $input	       \
+	|sed -ne 's/^#define __NR_//p' \
+	|sort -t' ' -k2 -nu	       \
+	|create_table ${wordsize}

[PATCH 3/3] perf trace powerpc: Use generated syscall table

[Ravi Bangoria]

This should speed up accessing new system calls introduced with the
kernel rather than waiting for libaudit updates to include them.

It also enables users to specify wildcards, for example, perf trace -e
'open*', just like was already possible on x86 and s390.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
---
 tools/perf/Makefile.config   | 2 ++
 tools/perf/util/syscalltbl.c | 4 ++++
 2 files changed, 6 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 0dfdaa9..577a5d2 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -27,6 +27,8 @@ NO_SYSCALL_TABLE := 1
 # Additional ARCH settings for ppc
 ifeq ($(SRCARCH),powerpc)
   NO_PERF_REGS := 0
+  NO_SYSCALL_TABLE := 0
+  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
   LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
 endif
 
diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c
index 303bdb8..b12c5f5 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -30,6 +30,10 @@
 #include <asm/syscalls_64.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_S390_64_MAX_ID;
 static const char **syscalltbl_native = syscalltbl_s390_64;
+#elif defined(__powerpc64__)
+#include <asm/syscalls_64.c>
+const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_64_MAX_ID;
+static const char **syscalltbl_native = syscalltbl_powerpc_64;
 #endif
 
 struct syscall {
-- 
1.8.3.1

Re: [PATCH 3/3] perf trace powerpc: Use generated syscall table

[Arnaldo Carvalho de Melo]

Em Mon, Jan 29, 2018 at 02:04:17PM +0530, Ravi Bangoria escreveu:
> +++ b/tools/perf/util/syscalltbl.c
> @@ -30,6 +30,10 @@
>  #include <asm/syscalls_64.c>
>  const int syscalltbl_native_max_id = SYSCALLTBL_S390_64_MAX_ID;
>  static const char **syscalltbl_native = syscalltbl_s390_64;
> +#elif defined(__powerpc64__)
> +#include <asm/syscalls_64.c>
> +const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_64_MAX_ID;
> +static const char **syscalltbl_native = syscalltbl_powerpc_64;
>  #endif

This is so cool! Thanks!

At some point we'll remove these #elif, have all of then linked, so that
we can do cross-platform interpreting of perf.data files generated with
'perf trace record', i.e. 'perf trace -i perf.data.recorded.on.s390' on
a powerpc64 or x86 machine.

We're paving the way to that with patches like yours and those for
s/390, thanks again!

- Arnaldo

[tip:perf/core] perf trace powerpc: Use generated syscall table

[tip-bot for Ravi Bangoria]

Commit-ID:  4281da235e3de91bb8deae44bc6506336ceaa88a
Gitweb:     https://git.kernel.org/tip/4281da235e3de91bb8deae44bc6506336ceaa88a
Author:     Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
AuthorDate: Mon, 29 Jan 2018 14:04:17 +0530
Committer:  Arnaldo Carvalho de Melo <acme@redhat.com>
CommitDate: Fri, 16 Feb 2018 14:55:50 -0300

perf trace powerpc: Use generated syscall table

This should speed up accessing new system calls introduced with the
kernel rather than waiting for libaudit updates to include them.

It also enables users to specify wildcards, for example, perf trace -e
'open*', just like was already possible on x86 and s390.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Hendrik Brueckner <brueckner@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Thomas Richter <tmricht@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20180129083417.31240-4-ravi.bangoria@linux.vnet.ibm.com
[ Do it for ppc32 as well ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/perf/Makefile.config   | 2 ++
 tools/perf/util/syscalltbl.c | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 0dfdaa9..577a5d2 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -27,6 +27,8 @@ NO_SYSCALL_TABLE := 1
 # Additional ARCH settings for ppc
 ifeq ($(SRCARCH),powerpc)
   NO_PERF_REGS := 0
+  NO_SYSCALL_TABLE := 0
+  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
   LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
 endif
 
diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c
index 303bdb8..895122d 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -30,6 +30,14 @@ static const char **syscalltbl_native = syscalltbl_x86_64;
 #include <asm/syscalls_64.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_S390_64_MAX_ID;
 static const char **syscalltbl_native = syscalltbl_s390_64;
+#elif defined(__powerpc64__)
+#include <asm/syscalls_64.c>
+const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_64_MAX_ID;
+static const char **syscalltbl_native = syscalltbl_powerpc_64;
+#elif defined(__powerpc__)
+#include <asm/syscalls_32.c>
+const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_32_MAX_ID;
+static const char **syscalltbl_native = syscalltbl_powerpc_32;
 #endif
 
 struct syscall {

Re: [PATCH 0/3] perf trace powerpc: Remove libaudit dependency for syscalls

[Arnaldo Carvalho de Melo]

Em Mon, Jan 29, 2018 at 02:04:14PM +0530, Ravi Bangoria escreveu:
> This is almost identical set of patches recently done for s390.
> 
> With this, user can run perf trace without libaudit on powerpc
> as well. Ex,
> 
>   $ make
>     ...     libaudit: [ OFF ]
> 
>   $ ./perf trace ls

Thanks, applied.

- Arnaldo

Re: [PATCH 0/3] perf trace powerpc: Remove libaudit dependency for syscalls

[Arnaldo Carvalho de Melo]

Em Thu, Feb 15, 2018 at 10:43:36AM -0300, Arnaldo Carvalho de Melo escreveu:
> Em Mon, Jan 29, 2018 at 02:04:14PM +0530, Ravi Bangoria escreveu:
> > This is almost identical set of patches recently done for s390.
> > 
> > With this, user can run perf trace without libaudit on powerpc
> > as well. Ex,
> > 
> >   $ make
> >     ...     libaudit: [ OFF ]
> > 
> >   $ ./perf trace ls
> 
> Thanks, applied.

Ah, I already had to update the unistd.h copy to catch some new syscalls
for s/390 :-)

https://git.kernel.org/acme/c/b4ec64dc68da

- Arnaldo