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2013-12-04perf tools: Add trace-event objectJiri Olsa9-31/+51
Add trace-event object to keep together 'struct pevent' object with its loaded plugins with following interface: int trace_event__init(struct trace_event *t); - Initalizes 'struct pevent' object and loads plugins for it void trace_event__cleanup(struct trace_event *t); - Cleanups both 'struct pevent' and plugins Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[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]>
2013-12-04perf tools: Add filename__read_str util functionJiri Olsa2-0/+50
Adding filename__read_str util function to read text file and return it in the char array. The interface is: int filename__read_str(const char *filename, char **buf, size_t *sizep) Returns 0/-1 if the read suceeded/fail respectively. buf - place to store the data pointer size - place to store data size v2 change: - better error handling suggested by Namhyung Kim. Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[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]>
2013-12-04perf tools: Add build and install plugins targetsJiri Olsa2-5/+20
Adding 'plugins' target along with the libtraceevent.a, so plugins are built together with traceevent library. Adding 'install-traceevent-plugins' Makefile install target, instructing perf to install plugins into: $(HOME)/.traceevent/plugins - If installed localy under $HOME $(DESTDIR)/$(prefix)/$(libdir)/traceevent/plugins - If installed globally Examples: $ make install ... $ find ~/.traceevent/plugins/ /home/jolsa/.traceevent/plugins/ /home/jolsa/.traceevent/plugins/plugin_mac80211.so /home/jolsa/.traceevent/plugins/plugin_kvm.so /home/jolsa/.traceevent/plugins/plugin_scsi.so /home/jolsa/.traceevent/plugins/plugin_sched_switch.so /home/jolsa/.traceevent/plugins/plugin_xen.so /home/jolsa/.traceevent/plugins/plugin_cfg80211.so /home/jolsa/.traceevent/plugins/plugin_function.so /home/jolsa/.traceevent/plugins/plugin_kmem.so /home/jolsa/.traceevent/plugins/plugin_hrtimer.so /home/jolsa/.traceevent/plugins/plugin_jbd2.so $ sudo make install DESTDIR=/opt/perf/ ... $ find /opt/perf/lib64/traceevent/plugins/ /opt/perf/lib64/traceevent/plugins/ /opt/perf/lib64/traceevent/plugins/plugin_kvm.so /opt/perf/lib64/traceevent/plugins/plugin_scsi.so /opt/perf/lib64/traceevent/plugins/plugin_mac80211.so /opt/perf/lib64/traceevent/plugins/plugin_hrtimer.so /opt/perf/lib64/traceevent/plugins/plugin_kmem.so /opt/perf/lib64/traceevent/plugins/plugin_jbd2.so /opt/perf/lib64/traceevent/plugins/plugin_sched_switch.so /opt/perf/lib64/traceevent/plugins/plugin_function.so /opt/perf/lib64/traceevent/plugins/plugin_cfg80211.so /opt/perf/lib64/traceevent/plugins/plugin_xen.so Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[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]>
2013-12-04tools lib traceevent: Harmonize the install messages in lib-traceeventJiri Olsa1-1/+1
Removing the 'to ...' part out of the install message, because it does not fit to the rest of the build messages we use. Before: INSTALL plugin_hrtimer.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_jbd2.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_kmem.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_kvm.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_mac80211.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_sched_switch.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_function.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_xen.so to /home/jolsa/libexec/perf-core/traceevent/plugins INSTALL plugin_scsi.so to /home/jolsa/libexec/perf-core/traceevent/plugins Now: INSTALL plugin_jbd2.so INSTALL plugin_hrtimer.so INSTALL plugin_kmem.so INSTALL plugin_kvm.so INSTALL plugin_mac80211.so INSTALL plugin_sched_switch.so INSTALL plugin_function.so INSTALL plugin_xen.so INSTALL plugin_scsi.so Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[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]>
2013-12-04tools lib traceevent: Change pevent_parse_format to include pevent handleJiri Olsa3-23/+39
Changing the pevent_parse_format interface to include the pevent handle. The goal is to always use pevent object when dealing with traceevent library. The reason is that we might need additional processing (like plugins), which is not possible otherwise. Patches follow to make this happen completely. Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[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]>
2013-12-04tools lib traceevent: Add traceevent_host_bigendian functionJiri Olsa1-0/+10
Adding traceevent_host_bigendian function to get host endianity. It's used in following patches. Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Steven Rostedt <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04tools lib traceevent: Add plugin build supportJiri Olsa1-5/+47
Backporting missing pieces of plugin building infrastructure: - Adding Makefile 'plugins' target to build all defined plugins - Adding Makefile 'install_plugins' target as 'install_lib' target dependency - Link plugin objects with shared object building Backported from Steven Rostedt's trace-cmd repo (HEAD 0f2c2fb): git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git Plugins are by default installed into following locations: '$(HOME)/.traceevent/plugins' - If we are installing under $(HOME) '$(prefix)/lib/traceevent/plugins' - Otherwise This path is propagated to the plugin object as a plugins search path. Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[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]>
2013-12-04tools lib traceevent: Add plugin supportJiri Olsa3-1/+212
Backporting plugin support for traceevent lib. Backported from Steven Rostedt's trace-cmd repo (HEAD 0f2c2fb): git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/trace-cmd.git It's now possible to use following interface to load plugins (shared objects) to enhance pevent object functionality. The plugin interface/hooks are as follows: (taken from event-parse.h comments) - 'pevent_plugin_loader' (required) The function name to initialized the plugin. int pevent_plugin_loader(struct pevent *pevent) - 'pevent_plugin_unloader' (optional) The function called just before unloading int pevent_plugin_unloader(void) - 'pevent_plugin_options' (optional) Plugin options that can be set before loading struct plugin_option pevent_plugin_options[] = { { .name = "option-name", .plugin_alias = "overide-file-name", (optional) .description = "description of option to show users", }, { .name = NULL, }, }; Array must end with .name = NULL; The plugin_alias (below) can be used to give a shorter name to access the variable. Useful if a plugin handles more than one event. NOTE options support is not backported yet. - 'pevent_plugin_alias' (optional) The name to use for finding options (uses filename if not defined) New traceevent functions are added to search and load available plugins: struct plugin_list* traceevent_load_plugins(struct pevent *pevent) - loads plusing for 'struct pevent' object and returns loaded plugins list void traceevent_unload_plugins(struct plugin_list *plugin_list); - unload plugin list Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Steven Rostedt <[email protected]> Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf script: Do not call perf_event__preprocess_sample() twice)Adrian Hunter3-24/+22
The perf_event__preprocess_sample() function is called in process_sample_event(). Instead of calling it again in perf_evsel__print_ip(), pass through the resultant addr_location. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[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/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf symbols: Fix random fd closing with no libelfAdrian Hunter1-0/+1
When built without libelf, perf tools was failing to initialize a file descriptor, but nevertheless closing it. That sometimes resulted in the output being truncated because the stdout file descriptor got closed. Signed-off-by: Adrian Hunter <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[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/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf kvm: Update the 'record' man page entry for new --guest/--host behaviorDongsheng Yang1-4/+11
As we have changed the default behavior of 'perf kvm' to --guest enabled, the parts of the man page that covers the 'record' subcommand are outdated. This patch updates it to show the correct output with --host/--guest/neither/both of them. Signed-off-by: Dongsheng Yang <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/3a3a9c1e05acb5a274d1d8369db5a4c6467d6276.1386197481.git.yangds.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf kvm: Fix spurious '=' use in man pageDongsheng Yang1-4/+4
As option --host and --guest request no input for it, there should not be a '=' after them in the man page sources. And --output expects a filename as the input, so there should be a '=' after it. This patch removes the needless '=' after --guest and --host, and adds a '=' after --output in perf-kvm.txt. Signed-off-by: Dongsheng Yang <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/6124d9eb10a3f1f6b399d1db660110bc7a60fd6b.1386197481.git.yangds.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf kvm: Add more detail about buildid-list in man pageDongsheng Yang1-1/+3
As the buildid is read from /sys/kernel/notes, then if we use perf kvm buildid-list with a perf data file captured by perf kvm record with --guestkallsyms and --guestmodules, there is no result in output. This patch add a explanation about it and add a limit of using perf kvm buildid-list. Signed-off-by: Dongsheng Yang <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/d605a805486340b53bc261aa64d7632ad0a8cf53.1386197481.git.yangds.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf target: Move the checking of which map function to call into function.Dongsheng Yang2-7/+14
Check for cpu_map__dummy_new() or cpu_map__new() to be called in perf_evlist__create_maps() is more complicated. This patch moves the checking work into target.h, combining two conditions and making perf_evlist__create_maps() more readable. Signed-off-by: Dongsheng Yang <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/b8c41f1fd2c4f0df71eb7b19aea74fb64d46cdda.1386197481.git.yangds.fnst@cn.fujitsu.com Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf tools: Remove condition in machine__get_kernel_start_addr.Dongsheng Yang1-9/+5
In machine__get_kernel_start_addr, the code, which is using machine->root_dir to build filename, works for both host and guests initialized from guestmount, as root_dir is set to "" for the host machine in the machine__init() function. So this patch remove the branch for machine__is_host. Signed-off-by: Dongsheng Yang <[email protected]> Cc: David Ahern <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Paul Mackerras <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/0a81645dd0b384a12cb4f962cf193ef8c3ce2010.1386197481.git.yangds.fnst@cn.fujitsu.com [ Clarified changeset mentioning root_dir setup in machine__init() ] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf tools: Remove stackprotector feature checkJiri Olsa3-16/+1
We use -fstack-protector-all option to enable stack protecting for all available functions. There's no reason for enabling -Wstack-protector to get warning for unprotected functions. Removing stackprotector feature check which was used to enable the -Wstack-protector option. Signed-off-by: Jiri Olsa <[email protected]> Cc: Corey Ashford <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: Paul Mackerras <[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]>
2013-12-04perf tools: Do not disable source line lookup just because of 1 failureAdrian Hunter3-4/+18
Looking up an ip's source file name and line number does not succeed always. Current logic disables the lookup for a dso entirely on any failure. Change it so that disabling never happens if there has ever been a successful lookup for that dso but disable if the first 123 lookups fail. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[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/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf symbols: Retain symbol source file name to lookup source line numbersAdrian Hunter4-1/+10
Currently, lookup of an ip's source file name and line number is done using the dso file name. Instead retain the file name used to lookup the dso's symbols and use that. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[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/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf symbols: Retain bfd reference to lookup source line numbersAdrian Hunter3-6/+34
Closng and re-opening for every lookup when using libbfd to lookup source file name and line number is very very slow. Instead keep the reference on struct dso. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[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/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-04perf tools: Use asprintf instead of malloc plus snprintfAdrian Hunter1-8/+1
The asprintf library function is equivalent to malloc plus snprintf so use it because it is simpler. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: David Ahern <[email protected]> Cc: Frederic Weisbecker <[email protected]> Cc: Ingo Molnar <[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/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
2013-12-03rcutorture: Stop tracking FSF's postal addressPaul E. McKenney17-32/+50
All of the rcutorture scripts has the usual GPL header, which contains a long-obsolete postal address for FSF. To avoid the need to track the FSF office's movements, this commit substitutes the URL where GPL may be found. Reported-by: Greg KH <[email protected]> Reported-by: Steven Rostedt <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]>
2013-12-03rcutorture: Move checkarg to functions.shPaul E. McKenney2-22/+27
Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Flag errors and warnings with color codingPaul E. McKenney5-12/+41
The output of the rcutorture scripts often requires interpretation, so this commit simplifies this interpretation by tagging messages as BUGs (colored red) or WARNINGs (colored yellow). Reported-by: Ingo Molnar <[email protected]> Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Record results from repeated runs of the same test scenarioPaul E. McKenney1-1/+15
Repeatedly running a given test, for example, by repeating the name as in "--configs "TREE08 TREE08 TREE08" records the results only of the last run of this test. This is because the earlier results are overwritten by the later results. This commit therefore checks for earlier results, using numbered file extensions to distinguish multiple runs. The earlier example would therefore create directories TREE01, TREE01.2, and TREE01.3. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Test summary at end of run with less chattinessPaul E. McKenney2-1/+4
The commit causes kvm.sh to invoke kvm-recheck.sh at the end of each run, and causes kvm-recheck.sh to print only the name of the test, not the full path to the corresponding Kconfig file. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Update comment in kvm.sh listing typical RCU trace eventsPaul E. McKenney1-1/+1
Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add tracing-enabled version of TREE08Paul E. McKenney1-0/+26
The TREE08 Kconfig fragment does not enable tracing, which is appropriate for its test case. However, this can be inconvenient in cases where TREE08 locates RCU bugs. This commit therefore adds a TREE08-T that differs from TREE08 only in enabling CONFIG_RCU_TRACE. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add --kmake-arg argument to kvm.shPaul E. McKenney2-1/+8
This commit adds the --kmake-arg to kvm.sh, which allows passing in things like "V=1" to see the build commands, as well as enabling the CROSS_COMPILE= make macro used for cross-building. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add --no-initrd argument to kvm.shPaul E. McKenney2-3/+8
This commit adds the --no-initrd argument to kvm.sh, which permits initrd to be contained in a root partition specified by the --bootargs argument. Without --no-initrd, the kernel build expects an initrd directory in the same rcutorture directory that contains bin and configs. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add --qemu-args argument to kvm.shPaul E. McKenney1-5/+11
This commits adds the --qemu-args argument to kvm.sh that is required to pass boot devices down through to qemu. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add --bootargs argument to specify additional boot argumentsPaul E. McKenney1-1/+7
This commit allows easy specification of trace_event lists, among other things. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add --buildonly dry-run capabilityPaul E. McKenney2-0/+9
This commit adds --buildonly, which does the builds specified by the --configs argument, but does not boot or test the resulting kernels. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Eliminate configdir argument from kvm-recheck.sh scriptPaul E. McKenney1-4/+2
Don't grab the configuration fragment from the configs directory because it might well have been changed since the test was run. Instead, use the ConfigFragment file that was placed in the results directory. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Allow Kconfig-related boot parameters to overridePaul E. McKenney1-4/+6
As it stands, the default kernel boot parameters generated from the Kconfig fragment will override any supplied with the .boot file that can optionally accompany a Kconfig fragment. Rearrange ordering to permit the specific .boot arguments to override those generated by analyzing the Kconfig fragment. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Refactor to enable non-x86 architecturesPaul E. McKenney3-13/+102
This commit expands the checks for what architecture is running to generate additional qemu-system- commands, then uses the resulting qemu-system- command name to choose different qemu arguments as needed for different architectures. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Eliminate --rcu-kvm argumentPaul E. McKenney1-14/+1
The --rcu-kvm argument was intended to allow the scripts to live in an alternate location. Unfortunately, this prevents the kvm.sh script from using common functions until after it finished parsing arguments, because it doesn't know where to find them until then. However, "cp -a" and "ln -s" work pretty well, so lack of an --rcu-kvm argument can be easily worked around. This commit therefore removes this argument. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Remove decorative qemu argumentPaul E. McKenney1-1/+1
The qemu -name argument doesn't seem to be useful in this environment, so this commit removes it. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Abstract qemu-flavor identificationPaul E. McKenney3-6/+36
The task of working out which flavor of qemu to use gets more complex as more types of CPUs are supported. Adding Power makes three in addition to 32-bit and 64-bit x86, so it is time to pull this out into a function. This commit therefore creates an identify_qemu function and also adds a --qemu-cmd command-line argument for the inevitable case where the identify_qemu cannot figure it out. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Eliminate duplicate .config-check codePaul E. McKenney1-26/+1
The commit uses configcheck.sh from within configinit.sh, replacing the imperfect inline expansion that was there before. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Make test output less chattyPaul E. McKenney3-13/+16
This commit drops no-longer-needed diagnostics from the output. Some of them are retained in logfiles, in case they are ever needed. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Refactor TINY_RCU test casesPaul E. McKenney8-90/+68
The TINY_RCU test cases were first put in place many years ago, and have been incrementally modified rather than being reworked. This commit therefore completes a long-overdue reworking of the TINY_RCU test cases. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Refactor TREE_RCU test casesPaul E. McKenney34-480/+328
The TREE_RCU test cases were first put in place many years ago, and have been incrementally modified rather than being reworked. This commit therefore completes a long-overdue reworking of the TREE_RCU test cases. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add SRCU Kconfig-fragment filesPaul E. McKenney4-0/+18
Use .boot facility to ease inclusion of SRCU into automated testing. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add v3.12 version, which adds sysidle testingPaul E. McKenney23-0/+521
The v3.12 version of the kernel added the CONFIG_NO_HZ_FULL_SYSIDLE Kconfig parameter, so this commit adds a version transition at that point. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add per-Kconfig fragment boot parametersPaul E. McKenney2-0/+14
Some Kconfig fragments require rcutorture module parameters to do optimal testing, for example, a configuration for SRCU would need rcutorture.torture_type=srcu. This commit therefore adds a per-Kconfig-fragment boot-parameter capability. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add per-version default Kconfig fragments and module parametersPaul E. McKenney13-32/+242
Different Kconfig parameters apply to different kernel versions, as do different rcutorture module parameters. This commit allows the rcutorture test scripts to adjust for different kernel versions. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add kernel-version argumentPaul E. McKenney44-1/+906
Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add datestamp argument to kvm.shPaul E. McKenney1-5/+11
Allow datestamp to be specified to allow tests to be broken up and run in parallel. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03rcutorture: Add KVM-based test frameworkPaul E. McKenney40-0/+1650
This commit adds the test framework that I used to test RCU under KVM. This consists of a group of scripts and Kconfig fragments. Signed-off-by: Paul E. McKenney <[email protected]> Cc: Greg KH <[email protected]>
2013-12-03ktest: Add documentation of CLOSE_CONSOLE_SIGNALSteven Rostedt (Red Hat)1-0/+7
The sample.conf file needs to document all available options. With the new CLOSE_CONSOE_SIGNAL option, it too needs to be document. Cc: Satoru Takeuchi <[email protected]> Signed-off-by: Steven Rostedt <[email protected]>
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