Arnaldo Carvalho de Melo 45e9005690 perf machine: Do not bail out if not managing to read ref reloc symbol ... This means the user can't access /proc/kallsyms, for instance, because /proc/sys/kernel/kptr_restrict is set to 1. Instead leave the ref_reloc_sym as NULL and code using it will cope. This allows 'perf trace' to work on such systems for !root, the only issue would be when trying to resolve kernel symbols, which happens, for instance, in some libtracevent plugins. A warning for that case will be provided in the next patch in this series. Noticed in Ubuntu 16.04, that comes with kptr_restrict=1. Reported-by: Milian Wolff <milian.wolff@kdab.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-knpu3z4iyp2dxpdfm798fac4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>		2016-05-20 11:43:54 -03:00
..
arch	perf symbols: Fix kallsyms perf test on ppc64le	2016-05-05 21:04:03 -03:00
bench	perf bench: Remove one more die() call	2016-04-26 13:28:40 -03:00
config	perf tools: Build syscall table .c header from kernel's syscall_64.tbl	2016-04-08 09:58:14 -03:00
Documentation	perf record: Disable buildid cache options by default in switch output mode	2016-04-28 09:58:59 -03:00
jvmti	perf jit: Add support for using TSC as a timestamp	2016-04-01 18:42:55 -03:00
python	perf python: Support the PERF_RECORD_SWITCH event	2015-10-07 19:41:50 -03:00
scripts	perf script: Update export-to-postgresql to support callchain export	2016-05-06 13:00:55 -03:00
tests	perf tests: Add test to check backward ring buffer	2016-05-09 18:11:22 -03:00
trace	perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/	2016-05-11 13:06:00 -03:00
ui	perf hists: Move sort__has_comm into struct perf_hpp_list	2016-05-05 21:04:02 -03:00
util	perf machine: Do not bail out if not managing to read ref reloc symbol	2016-05-20 11:43:54 -03:00
.gitignore	perf tools: Add Intel PT instruction decoder	2015-08-17 11:11:36 -03:00
Build	perf tools: Set and pass DOCDIR to builtin-report.c	2016-01-12 12:42:07 -03:00
builtin-annotate.c	perf machine: Rename perf_event__preprocess_sample to machine__resolve	2016-03-23 12:03:08 -03:00
builtin-bench.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-buildid-cache.c	perf symbols: Introduce DSO__NAME_KALLSYMS and DSO__NAME_KCORE	2016-05-16 23:11:48 -03:00
builtin-buildid-list.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-config.c	perf config: Make show_config() use perf_config_set	2016-04-14 09:15:47 -03:00
builtin-data.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-diff.c	perf hists: Move sort__need_collapse into struct perf_hpp_list	2016-05-05 21:03:58 -03:00
builtin-evlist.c	perf evlist: Add --trace-fields option to show trace fields	2016-01-08 14:23:02 -03:00
builtin-help.c	perf help: Make check_emacsclient_version to check strbuf APIs	2016-05-10 11:56:14 -03:00
builtin-inject.c	perf tools: Add time conversion event	2016-03-31 10:52:24 -03:00
builtin-kmem.c	perf callchain: Start moving away from global per thread cursors	2016-04-14 14:48:07 -03:00
builtin-kvm.c	perf evsel: Do not use globals in config()	2016-04-11 22:18:20 -03:00
builtin-list.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-lock.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-mem.c	perf mem: Add -U/-K (--all-user/--all-kernel) options	2016-03-30 11:14:07 -03:00
builtin-probe.c	perf subcmd: Create subcmd library	2015-12-17 14:27:14 -03:00
builtin-record.c	perf record: Generate tracking events for process forked by perf	2016-04-28 09:58:59 -03:00
builtin-report.c	perf hists: Move sort__has_parent into struct perf_hpp_list	2016-05-05 21:03:59 -03:00
builtin-sched.c	perf sched map: Display only given cpus	2016-04-13 10:11:52 -03:00
builtin-script.c	perf tools: Set the maximum allowed stack from /proc/sys/kernel/perf_event_max_stack	2016-04-27 10:29:07 -03:00
builtin-stat.c	perf stat: Use cpu-clock event for cpu targets	2016-05-16 23:11:47 -03:00
builtin-timechart.c	perf machine: Rename perf_event__preprocess_sample to machine__resolve	2016-03-23 12:03:08 -03:00
builtin-top.c	perf hists: Move sort__has_socket into struct perf_hpp_list	2016-05-05 21:04:01 -03:00
builtin-trace.c	perf trace: Move seccomp args beautifiers to tools/perf/trace/beauty/	2016-05-11 13:06:00 -03:00
builtin-version.c	perf tools: Move cmd_version() to builtin-version.c	2015-12-09 13:42:03 -03:00
builtin.h	perf tools: Remove needless 'extern' from function prototypes	2016-03-23 15:06:35 -03:00
command-list.txt	perf tools: Do not show trace command if it's not compiled in	2016-01-08 12:46:17 -03:00
CREDITS
design.txt	perf tools: Update some code references in design.txt	2014-03-18 18:17:06 -03:00
Makefile	perf build tests: Do parallell builds with 'build-test'	2016-02-04 15:57:00 -03:00
Makefile.perf	perf tools: Build syscall table .c header from kernel's syscall_64.tbl	2016-04-08 09:58:14 -03:00
MANIFEST	perf bench: Fix detached tarball building due to missing 'perf bench memcpy' headers	2016-03-24 12:28:57 -03:00
perf-archive.sh
perf-completion.sh	perf tools: Avoid confusion with preloaded bash function for perf bash completion	2015-03-19 13:53:27 -03:00
perf-read-vdso.c	perf tools: Build programs to copy 32-bit compatibility	2014-10-29 10:32:48 -02:00
perf-sys.h	perf tools: Move generic barriers out of perf-sys.h	2015-05-08 16:05:08 -03:00
perf-with-kcore.sh	perf tools: Fix perf-with-kcore handling of arguments containing spaces	2015-08-06 16:48:27 -03:00
perf.c	perf tools: Separate accounting of contexts and real addresses in a stack trace	2016-05-16 23:11:54 -03:00
perf.h	perf tools: Ditch record_opts.callgraph_set	2016-04-18 12:26:27 -03:00