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2016-12-11make use of make variable CURDIR instead of calling pwdUwe Kleine-König1-1/+1
make already provides the current working directory in a variable, so make use of it instead of forking a shell. Also replace usage of PWD by CURDIR. PWD is provided by most shells, but not all, so this makes the build system more robust. Signed-off-by: Uwe Kleine-König <[email protected]> Signed-off-by: Michal Marek <[email protected]>
2016-09-08tools lib api fs: Add hugetlbfs filesystem detectorWang Nan2-0/+16
Detect hugetlbfs. hugetlbfs__mountpoint() will be used during recording to help identifying hugetlb mmaps: which should be recognized as anon mapping. Signed-off-by: Wang Nan <[email protected]> Reviewed-by: Nilay Vaish <[email protected]> Cc: He Kuang <[email protected]> Cc: Hou Pengyang <[email protected]> Cc: Zefan Li <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-07-27tools lib api: Add str_error_c to libapiArnaldo Carvalho de Melo1-0/+5
Because it uses that function, which would lead every tool using it to need to link against tools/lib/str_error_r.o. This fixes building tools/vm/, that links with libapi. Reported-by: Arjan van de Ven <[email protected]> Reported-by: Randy Dunlap <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Fixes: b31e3e3316a7 ("tools lib api fs: Use str_error_r()") Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-07-15tools lib fd array: Allow associating a pointer cookie with each entryWang Nan1-0/+1
Add a 'ptr' field to fdarray->priv array. This feature will be used by following commits, which introduce muiltiple 'struct perf_mmap' arrays for different types of mapping. Because of this, during fdarray__filter(), a simple 'idx' is not enough. Add a pointer cookie that allows to directly associate a 'struct perf_mmap' pointer to an fdarray entry. Signed-off-by: Wang Nan <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: He Kuang <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Nilay Vaish <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Zefan Li <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-07-15tools lib api fs: Use base 0 in filename__read_ullJiri Olsa1-1/+6
By using 0 for base, the strtoull() detects the base automatically (see 'man strtoull'). ATM we have just one user of this function, the cpu__get_max_freq function reading the "cpuinfo_max_freq" sysfs file. It should not get affected by this change. Committer note: This change seems motivated by this discussion: "[PATCH] [RFC V1]s390/perf: fix 'start' address of module's map" http://lkml.kernel.org/r/20160711120155.GA29929@krava I.e. this patches paves the way for filename__read_ull() to be used in a S/390 related fix. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Songshan Gong <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-07-12tools lib api fs: Use str_error_r()Arnaldo Carvalho de Melo2-1/+3
To make it portable to non-glibc systems, that follow the XSI variant instead of the GNU specific one that gets in place when _GNU_SOURCE is defined. Cc: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-07-04tools lib api: Respect WERROR=0 for buildChris Phlipot1-1/+7
This enables the workaround for compilers that generate warnings when compiling libapi. Signed-off-by: Chris Phlipot <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-06-03tools lib api: Respect CROSS_COMPILE for the linkerLucas Stach1-0/+1
This fixes cross compilation of libapi. Signed-off-by: Lucas Stach <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-05-30tools: Pass arg to fdarray__filter's call back functionWang Nan2-3/+5
Before this patch there's no way to pass arguments to fdarray__filter's call back function. This improvement will be used by 'perf record' to support unmapping ring buffer for both main evlist and overwrite evlist. Without this patch there's no way to track overwrite evlist from 'struct fdarray'. Signed-off-by: Wang Nan <[email protected]> Cc: He Kuang <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Zefan Li <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-04-26tools lib api fs: Add helper to read string from procfs fileArnaldo Carvalho de Melo2-0/+15
To read things like /proc/self/comm. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Milian Wolff <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-03-18tools: Move utilities.mak from perf to tools/scripts/Arnaldo Carvalho de Melo1-1/+1
As it is used by several other tools, better move it outside tools/perf. Cc: Adrian Hunter <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-02-16tools lib api fs: Add sysfs__read_str functionJiri Olsa2-0/+14
Adding sysfs__read_str function to ease up reading string files from sysfs. New interface is: int sysfs__read_str(const char *entry, char **buf, size_t *sizep); Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-02-16tools lib api fs: Adopt filename__read_str from perfJiri Olsa2-0/+53
We already moved similar functions in here, also it'll be useful for sysfs__read_str addition in following patch. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2016-02-16tools lib api: Add debug output supportJiri Olsa5-0/+60
Adding support for warning/info/debug output within libapi code. Adding following macros: pr_warning(fmt, ...) pr_info(fmt, ...) pr_debug(fmt, ...) Also adding libapi_set_print function to set above functions. This will be used in perf to set standard debug handlers for libapi. Adding 2 header files: debug.h - to be used outside libapi, contains libapi_set_print interface debug-internal.h - to be used within libapi, contains pr_warning/pr_info/pr_debug definitions Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-10-05tools lib api fs: No need to use PATH_MAX + 1Jiri Olsa2-4/+4
Because there's no point, PATH_MAX is big enough. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Kan Liang <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-28tools build: Build fixdep helper from perf and basic libsJiri Olsa1-1/+3
Adding the fixdep target into the Makefile.include to ease up building of fixdep helper, that needs to be built before we dive in to the build itself. The user can invoke the fixdep target to build the helper. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-28tools build: Add Makefile.includeJiri Olsa1-1/+1
To ease up build framework code setup for users. More shared code will be added in the following patches. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-28tools lib api fs: Store tracing mountpoint for better error messageJiri Olsa1-10/+3
Storing the actual tracing path mountpoint to display correct error message hint ('Hint:' line). The error hint rediscovers mountpoints, but it could be different from what we actually used in tracing path. Before we'd display debugfs mount even though tracefs was used: $ perf record -e sched:sched_krava ls event syntax error: 'sched:sched_krava' \___ can't access trace events Error: No permissions to read /sys/kernel/debug/tracing/events/sched/sched_krava Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug' ... After this change, correct mountpoint is displayed: $ perf record -e sched:sched_krava ls event syntax error: 'sched:sched_krava' \___ can't access trace events Error: No permissions to read /sys/kernel/debug/tracing/events/sched/sched_krava Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug/tracing' ... Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raphael Beamonte <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-14tools lib api cpu: Introduce cpu.[ch] to obtain cpu related informationArnaldo Carvalho de Melo3-0/+25
E.g.: $ ./cpu__get_max_freq 3200000 It does that, as Kan's patch does, by looking at these files: $ cat /sys/devices/system/cpu/online 0-3 $ ./sysfs__read_ull devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq=3200000 $ I.e. find out the first online CPU, then read its cpufreq info. But do it in tools/lib/api/, so that other tools/ living code can use it, not just perf. Based-on-a-patch-by: Kan Liang <[email protected]> Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-14tools lib api fs: Introduce sysfs__read_{int,ull}()Arnaldo Carvalho de Melo2-0/+49
To read either an int or an unsigned long long value from the given file. E.g.: $ cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq 3200000 $ ./sysfs__read_ull devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq=3200000 $ Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Kan Liang <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Wang Nan <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-14tools lib api fs: Remove debugfs, tracefs and findfs objectsJiri Olsa7-288/+0
We have all the functionality in fs.c, let's remove unneeded objects. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-14tools lib api fs: Replace debugfs/tracefs objects interface with fs.cJiri Olsa2-9/+7
Switching to the fs.c related filesystem framework. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-14tools lib api fs: Make tracing_path_strerror_open message genericJiri Olsa1-10/+16
Making tracing_path__strerror_open_tp message generic by mentioning both debugfs/tracefs words in error message plus the tracing_path instead of debugfs_mountpoint. Signed-off-by: Jiri Olsa <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] [ Add comment for the ENOENT case out of this patch discussion thread ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Add FSTYPE__configured() methodJiri Olsa2-10/+18
Add FSTYPE__configured() (where FSTYPE is one of sysfs, procfs, debugfs, tracefs) interface that returns bool state of the filesystem mount: true - mounted, false - not mounted It will not try to mount the filesystem. Signed-off-by: Jiri Olsa <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Add FSTYPE__mount() methodJiri Olsa2-9/+50
Adding FSTYPE__mount (where FSTYPE is, as of now, one of sysfs, procfs, debugfs, tracefs) method that tries to mount the filesystem in case no mount of FSTYPE is found. Signed-off-by: Jiri Olsa <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Add tracefs into fs.c objectJiri Olsa2-0/+29
Adding tracefs support into fs.c framework. It'll replace the tracefs object functionality in following patches. Signed-off-by: Jiri Olsa <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Add debugfs into fs.c objectJiri Olsa2-6/+26
Adding debugfs support into fs.c framework. It'll replace the debugfs object functionality in following patches. Signed-off-by: Jiri Olsa <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Move SYSFS_MAGIC PROC_SUPER_MAGIC into fs.cJiri Olsa2-8/+8
There's no need to export SYSFS_MAGIC PROC_SUPER_MAGIC in fs.h. Leave them in the fs.c. Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Jiri Olsa <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Add STR and PATH_MAX macros to fs objectJiri Olsa2-0/+11
We're going to get rid of findfs.h in following patches, but we'll still need these macros. Signed-off-by: Jiri Olsa <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Matt Fleming <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Move debugfs__strerror_open into tracing_path.c objectJiri Olsa3-52/+57
Moving debugfs__strerror_open out of api/fs/debugfs.c, because it's not debugfs specific. It'll be changed to consider tracefs mount as well in following patches. Renaming it into tracing_path__strerror_open_tp to fit into the namespace. No functional change is intended. Signed-off-by: Jiri Olsa <[email protected]> Reviewed-by: Matt Fleming <[email protected]> Cc: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-09-04tools lib api fs: Move tracing_path interface into api/fs/tracing_path.cJiri Olsa3-0/+97
Moving tracing_path interface into api/fs/tracing_path.c out of util.c. It seems generic enough to be used by others, and I couldn't think of better place. Signed-off-by: Jiri Olsa <[email protected]> Reviewed-by: Matt Fleming <[email protected]> Reviewed-by: Raphael Beamonte <[email protected]> Cc: David Ahern <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-07-21Merge branch 'linus' into perf/core, to refresh the branchIngo Molnar1-1/+1
Signed-off-by: Ingo Molnar <[email protected]>
2015-07-08tools lib: Improve clean targetRiku Voipio1-1/+1
The clean targets miss some .cmd and .d files. Signed-off-by: Riku Voipio <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-07-06tools lib api debugfs: Check for tracefs when reporting errorsArnaldo Carvalho de Melo1-2/+13
Now that we have two mountpoints, one for debugfs and another, for tracefs, we end up needing to check permissions for both, so, on a system with default config we were always asking the user to check the permission of the debugfs mountpoint, even when it was already sufficient. Fix it. E.g.: $ trace -e nanosleep usleep 1 Error: No permissions to read /sys/kernel/debug/tracing/events/raw_syscalls/sys_(enter|exit) Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug' $ sudo mount -o remount,mode=755 /sys/kernel/debug $ trace -e nanosleep usleep 1 Error: No permissions to read /sys/kernel/debug/tracing/events/raw_syscalls/sys_(enter|exit) Hint: Try 'sudo mount -o remount,mode=755 /sys/kernel/debug/tracing' $ sudo mount -o remount,mode=755 /sys/kernel/debug/tracing $ trace -e nanosleep usleep 1 0.326 ( 0.061 ms): usleep/11961 nanosleep(rqtp: 0x7ffef1081c50) = 0 $ Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-04-23tools lib api: Undefine _FORTIFY_SOURCE before setting itBobby Powers1-1/+1
Some toolchains (like Hardened Gentoo) define _FORTIFY_SOURCE in the built-in, default args. This causes perf builds to fail with: <command-line>:0:0: error: "_FORTIFY_SOURCE" redefined [-Werror] <built-in>: note: this is the location of the previous definition cc1: all warnings being treated as errors To avoid this, undefine _FORTIFY_SOURCE before (possibly re-)defining it in tools/lib/api. v2 applies cleanly on top of already pulled kbuild changes for 4.1-rc1. Signed-off-by: Bobby Powers <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Dirk Gouders <[email protected]> Cc: Michal Marek <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-12tools lib api: Rename libapikfs.a to libapi.aJiri Olsa4-11/+11
Renaming libapikfs.a to libapi.a, because it's not just 'fs' specific library now. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Sukadev Bhattiprolu <[email protected]> Tested-by: Will Deacon <[email protected]> Cc: Alexis Berlemont <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-12tools lib api: Use tools build frameworkJiri Olsa4-36/+33
Move the libapikfs library building under tools build framework. Signed-off-by: Jiri Olsa <[email protected]> Tested-by: Sukadev Bhattiprolu <[email protected]> Tested-by: Will Deacon <[email protected]> Cc: Alexis Berlemont <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-07tools lib api fs: Add {tracefs,debugfs}_configured() functionsSteven Rostedt (Red Hat)5-0/+20
Add tracefs_configured() to return true if tracefs is configured in the kernel (succeeds to find tracefs), and debugfs_configured() if debugfs is configured in the kernel (succeeds to find debugfs). Signed-off-by: Steven Rostedt <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-07tools lib api debugfs: Add DEBUGFS_DEFAULT_PATH macroSteven Rostedt (Red Hat)1-3/+7
Instead of hard coding "/sys/kernel/debug" everywhere, create a macro to hold where the default path exists. Signed-off-by: Steven Rostedt <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-07tools lib api fs: Add tracefs mount helper functionsSteven Rostedt (Red Hat)3-0/+92
Since tracefs will now hold the event directory for perf, and even though by default, debugfs still mounts tracefs on the debugfs/tracing directory, the system admin may now choose to not mount debugfs and instead just mount tracefs instead. Having tracefs helper functions will facilitate having perf look for tracefs first, and then try debugfs as a fallback. Signed-off-by: Steven Rostedt <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-07tools lib fs: Add helper to find mounted file systemsSteven Rostedt (Red Hat)5-54/+94
In preparation for adding tracefs for perf to use, create a findfs helper utility that find_debugfs uses instead of hard coding the search in the code. This will allow for a find_tracefs to be used as well. Signed-off-by: Steven Rostedt <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-02-07perf tools: Do not check debugfs MAGIC for tracing filesSteven Rostedt (Red Hat)2-15/+14
It's rather strange to be checking the debugfs MAGIC number for the tracing directory. A system admin may want to have a custom set of events to trace and it should be allowed to let the admin make a temp file (even for tracing virtual boxes, this is useful). Also with the coming tracefs, the files may not even be under debugfs, so checking the debugfs MAGIC number is pointless. Signed-off-by: Steven Rostedt <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Masami Hiramatsu <[email protected]> Cc: Namhyung Kim <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-01-22tools lib fs debugfs: Check if debugfs is mounted when handling ENOENTArnaldo Carvalho de Melo1-0/+7
If debugfs was already mounted, then its a matter of not finding the tracepoint, tell the user that perhaps a CONFIG_ setting is not enabled. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-01-22tools lib fs debugfs: Introduce debugfs__strerror_open_tpArnaldo Carvalho de Melo2-0/+10
There will be other cases where not just a tracepoint event is being opened below the debugfs mountpoint, but it is rather common, so provide one helper for that. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-01-22tools lib fs: Pass filename to debugfs__strerror_openArnaldo Carvalho de Melo2-4/+4
It was hardcoded for one specific tracepoint, leftover from its initial user: 'perf trace'. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2015-01-22tools lib fs: Adopt debugfs open strerrno methodArnaldo Carvalho de Melo2-0/+29
As this is not specific to an evlist and may be used with other tools. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> tools/perf/util/include/asm/hash.h
2015-01-16perf tools: Fix statfs.f_type data type mismatch build error with uclibcAlexey Brodkin2-2/+2
ARC Linux uses the no legacy syscalls abi and corresponding uClibc headers statfs defines f_type to be U32 which causes perf build breakage http://git.uclibc.org/uClibc/tree/libc/sysdeps/linux/common-generic/bits/statfs.h ----------->8--------------- CC fs/fs.o fs/fs.c: In function 'fs__valid_mount': fs/fs.c:82:24: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare] else if (st_fs.f_type != magic) ^ cc1: all warnings being treated as errors ----------->8--------------- Signed-off-by: Alexey Brodkin <[email protected]> Acked-by: Jiri Olsa <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Cody P Schafer <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Vineet Gupta <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-12-11tools lib fs: Add sysctl__read_int helperArnaldo Carvalho de Melo2-0/+14
Will come in handy for tools, see next patches. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Link: http://lkml.kernel.org/n/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-12-11tools lib fs: Adopt filename__read_int from tools/perf/Arnaldo Carvalho de Melo2-0/+23
Will be useful for new helpers to read sysctl values. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Ahern <[email protected]> Cc: Don Zickus <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Mike Galbraith <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Stephane Eranian <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2014-09-25tools lib fd array: Allow associating an integer cookie with each entryArnaldo Carvalho de Melo2-5/+39
We will use this in perf's evlist class so that it can, at fdarray__filter() time, to unmap the associated ring buffer. We may need to have further info associated with each fdarray entry, in that case we'll make that int array a 'union fdarray_priv' one and put a pointer there so that users can stash whatever they want there. For now, an int is enough tho. v2: Add clarification to the per array entry priv area, as well as make it a union, which makes usage a bit longer, but if/when we make it use more space by allowing per entry pointers existing users source code will not have to be changed, just rebuilt. Cc: Adrian Hunter <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jean Pihet <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]> Link: http://lkml.kernel.org/n/[email protected]
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