From 90f18e63fbd005133624bf18a5e8b75c92e90f4d Mon Sep 17 00:00:00 2001 From: Srikar Dronamraju Date: Wed, 25 Aug 2010 19:13:29 +0530 Subject: perf symbols: List symbols in a dso in ascending name order Given a dso, list the symbols in ascending name order. Needed for listing available symbols from perf probe. Cc: Ananth N Mavinakayanahalli Cc: Andrew Morton Cc: Christoph Hellwig Cc: "Frank Ch. Eigler" Cc: Frederic Weisbecker Cc: Jim Keniston Cc: Mark Wielaard Cc: Masami Hiramatsu Cc: Mathieu Desnoyers Cc: Naren A Devaiah Cc: Oleg Nesterov Cc: "Paul E. McKenney" Cc: Randy Dunlap Cc: Srikar Dronamraju Cc: Steven Rostedt LKML-Reference: <20100825134329.5447.92261.sendpatchset@localhost6.localdomain6> Signed-off-by: Srikar Dronamraju Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index b7a8da4af5a0..0a2c460b6d81 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -181,6 +181,7 @@ size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp); size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits); size_t dso__fprintf_buildid(struct dso *self, FILE *fp); +size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp); size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp); enum dso_origin { -- cgit v1.2.2 From b226a5a72901bc9c73d639ea2e53e6c304bf3b74 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Tue, 7 Dec 2010 19:39:46 -0700 Subject: perf report: Allow user to specify path to kallsyms file This is useful for analyzing a perf data file on a different system than the one data was collected on and still include symbols from loaded kernel modules in the output. Commiter note: Updated the man page accordingly. LKML-Reference: <1291775986-16475-1-git-send-email-daahern@cisco.com> Signed-off-by: David Ahern Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 038f2201ee09..12defbe18c13 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -72,6 +72,7 @@ struct symbol_conf { show_cpu_utilization, initialized; const char *vmlinux_name, + *kallsyms_name, *source_prefix, *field_sep; const char *default_guest_vmlinux_name, -- cgit v1.2.2 From fd930ff91e7fda18f7790984a98489a85edb7c71 Mon Sep 17 00:00:00 2001 From: Franck Bui-Huu Date: Fri, 10 Dec 2010 14:06:03 +0100 Subject: perf probe: Fix use of kernel image path given by 'k' option Users were not being able to have the explicitely specified vmlinux pathname used, instead a search on the vmlinux path was always being made. Reported-by: Francis Moreau Acked-by: Masami Hiramatsu Cc: 2nddept-manager@sdl.hitachi.co.jp Cc: Francis Moreau Cc: Franck Bui-Huu Cc: Masami Hiramatsu LPU-Reference: Signed-off-by: Franck Bui-Huu Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 038f2201ee09..6c6eafdb932d 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -166,6 +166,8 @@ void dso__sort_by_name(struct dso *self, enum map_type type); struct dso *__dsos__findnew(struct list_head *head, const char *name); int dso__load(struct dso *self, struct map *map, symbol_filter_t filter); +int dso__load_vmlinux(struct dso *self, struct map *map, + const char *vmlinux, symbol_filter_t filter); int dso__load_vmlinux_path(struct dso *self, struct map *map, symbol_filter_t filter); int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map, -- cgit v1.2.2 From ec5761eab318e50e69fcf8e63e9edaef5949c067 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Thu, 9 Dec 2010 13:27:07 -0700 Subject: perf symbols: Add symfs option for off-box analysis using specified tree The symfs argument allows analysis of perf.data file using a locally accessible filesystem tree with debug symbols - e.g., tree created during image builds, sshfs mount, loop mounted KVM disk images, USB keys, initrds, etc. Anything with an OS tree can be analyzed from anywhere without the need to populate a local data store with build-ids. Commiter notes: o Fixed up symfs="/" variants handling. o prefixed DSO__ORIG_GUEST_KMODULE case with symfs too, avoiding use of files outside the symfs directory. LKML-Reference: <1291926427-28846-1-git-send-email-daahern@cisco.com> Signed-off-by: David Ahern Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 1 + 1 file changed, 1 insertion(+) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 12defbe18c13..bcd2f986927e 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -86,6 +86,7 @@ struct symbol_conf { struct strlist *dso_list, *comm_list, *sym_list; + const char *symfs; }; extern struct symbol_conf symbol_conf; -- cgit v1.2.2 From 3b01a413c196c91040d41c86e5b56f76bb369f74 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Wed, 22 Dec 2010 01:08:36 -0200 Subject: perf symbols: Improve kallsyms symbol end addr calculation For kallsyms we don't have the symbol address end, so we do an extra pass and set the symbol end addr as being the start of the next minus one. But this was being done just after we filtered the symbols of a particular type (functions, variables), so the symbol end was sometimes after what it really is. Fixing up symbol end also was falling apart when we have symbol aliases, then the end address of all but the last alias was being set to be before its start. Fix it up by checking for symbol aliases and making the kallsyms__parse routine use the next symbol, whatever its type, as the limit for the previous symbol, passing that end address to the callback. This was detected by the 'perf test' synthetic paranoid regression tests, fix it up so that even that case doesn't mislead us. Cc: Frederic Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras Cc: Stephane Eranian LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index bcd2f986927e..7b8c27bb1e6b 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -215,7 +215,7 @@ bool __dsos__read_build_ids(struct list_head *head, bool with_hits); int build_id__sprintf(const u8 *self, int len, char *bf); int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, - char type, u64 start)); + char type, u64 start, u64 end)); void machine__destroy_kernel_maps(struct machine *self); int __machine__create_kernel_maps(struct machine *self, struct dso *kernel); -- cgit v1.2.2 From d7603d5122d9700fb8f36fa08b04f4e900fef059 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 4 Mar 2011 14:51:33 -0300 Subject: perf hists: Remove needless global col lenght calcs To support multiple events we need to do these calcs per 'struct hists' instance, and it turns out we already do that at: __hists__add_entry hists__inc_nr_entries hists__calc_col_len for all the unfiltered hist_entry instances we stash in the rb tree, so trow away the dead code. Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 1 - 1 file changed, 1 deletion(-) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 670cd1c88f54..4d7ed09fe332 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -132,7 +132,6 @@ struct dso { struct rb_root symbol_names[MAP__NR_TYPES]; enum dso_kernel_type kernel; u8 adjust_symbols:1; - u8 slen_calculated:1; u8 has_build_id:1; u8 hit:1; u8 annotate_warned:1; -- cgit v1.2.2 From 878b439dccd064d6908800fab0b47bd3c3a87ebb Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 11 Mar 2011 13:13:36 -0300 Subject: perf symbols: Rename dso->origin to dso->symtab_type And the DSO__ORIG_ enum to SYMTAB__, to clarify that this is about from where the symtab was obtained. Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 26 +++++++++++++------------- 1 file changed, 13 insertions(+), 13 deletions(-) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 4d7ed09fe332..db39c0c63608 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -137,7 +137,7 @@ struct dso { u8 annotate_warned:1; u8 sname_alloc:1; u8 lname_alloc:1; - unsigned char origin; + unsigned char symtab_type; u8 sorted_by_name; u8 loaded; u8 build_id[BUILD_ID_SIZE]; @@ -188,18 +188,18 @@ size_t dso__fprintf_buildid(struct dso *self, FILE *fp); size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp); size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp); -enum dso_origin { - DSO__ORIG_KERNEL = 0, - DSO__ORIG_GUEST_KERNEL, - DSO__ORIG_JAVA_JIT, - DSO__ORIG_BUILD_ID_CACHE, - DSO__ORIG_FEDORA, - DSO__ORIG_UBUNTU, - DSO__ORIG_BUILDID, - DSO__ORIG_DSO, - DSO__ORIG_GUEST_KMODULE, - DSO__ORIG_KMODULE, - DSO__ORIG_NOT_FOUND, +enum symtab_type { + SYMTAB__KALLSYMS = 0, + SYMTAB__GUEST_KALLSYMS, + SYMTAB__JAVA_JIT, + SYMTAB__BUILD_ID_CACHE, + SYMTAB__FEDORA_DEBUGINFO, + SYMTAB__UBUNTU_DEBUGINFO, + SYMTAB__BUILDID_DEBUGINFO, + SYMTAB__SYSTEM_PATH_DSO, + SYMTAB__GUEST_KMODULE, + SYMTAB__SYSTEM_PATH_KMODULE, + SYMTAB__NOT_FOUND, }; char dso__symtab_origin(const struct dso *self); -- cgit v1.2.2 From 171b3be9c42e97cd4530706654242f6a3efb6ac3 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Fri, 11 Mar 2011 13:36:01 -0300 Subject: perf symbol: Move sym_entry->skip to symbol->ignore While going thru each of the sym_entry fields looking to reduce it to the set of entries needed when in an active symbols list, 'skip' should really be in symbol, as we set it when loading the symtab. And the space used by the basic symbol allocation remains the same as we had 5 bytes of padding. Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index db39c0c63608..713b0b40cc4a 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -48,12 +48,17 @@ char *strxfrchar(char *s, char from, char to); #define BUILD_ID_SIZE 20 +/** struct symbol - symtab entry + * + * @ignore - resolvable but tools ignore it (e.g. idle routines) + */ struct symbol { struct rb_node rb_node; u64 start; u64 end; u16 namelen; u8 binding; + bool ignore; char name[0]; }; -- cgit v1.2.2 From aeafcbaf4fcfeb74aeed65609ea5ead48dfc09f8 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 31 Mar 2011 10:56:28 -0300 Subject: perf symbols: Give more useful names to 'self' parameters One more installment on an area that is mostly dormant. Suggested-by: Thomas Gleixner Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Mike Galbraith Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Thomas Gleixner Cc: Tom Zanussi LKML-Reference: Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 78 +++++++++++++++++++++++++----------------------- 1 file changed, 41 insertions(+), 37 deletions(-) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 713b0b40cc4a..242de0101a86 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -62,7 +62,7 @@ struct symbol { char name[0]; }; -void symbol__delete(struct symbol *self); +void symbol__delete(struct symbol *sym); struct strlist; @@ -96,9 +96,9 @@ struct symbol_conf { extern struct symbol_conf symbol_conf; -static inline void *symbol__priv(struct symbol *self) +static inline void *symbol__priv(struct symbol *sym) { - return ((void *)self) - symbol_conf.priv_size; + return ((void *)sym) - symbol_conf.priv_size; } struct ref_reloc_sym { @@ -155,43 +155,45 @@ struct dso { struct dso *dso__new(const char *name); struct dso *dso__new_kernel(const char *name); -void dso__delete(struct dso *self); +void dso__delete(struct dso *dso); -int dso__name_len(const struct dso *self); +int dso__name_len(const struct dso *dso); -bool dso__loaded(const struct dso *self, enum map_type type); -bool dso__sorted_by_name(const struct dso *self, enum map_type type); +bool dso__loaded(const struct dso *dso, enum map_type type); +bool dso__sorted_by_name(const struct dso *dso, enum map_type type); -static inline void dso__set_loaded(struct dso *self, enum map_type type) +static inline void dso__set_loaded(struct dso *dso, enum map_type type) { - self->loaded |= (1 << type); + dso->loaded |= (1 << type); } -void dso__sort_by_name(struct dso *self, enum map_type type); +void dso__sort_by_name(struct dso *dso, enum map_type type); struct dso *__dsos__findnew(struct list_head *head, const char *name); -int dso__load(struct dso *self, struct map *map, symbol_filter_t filter); -int dso__load_vmlinux(struct dso *self, struct map *map, +int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter); +int dso__load_vmlinux(struct dso *dso, struct map *map, const char *vmlinux, symbol_filter_t filter); -int dso__load_vmlinux_path(struct dso *self, struct map *map, +int dso__load_vmlinux_path(struct dso *dso, struct map *map, symbol_filter_t filter); -int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map, +int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, symbol_filter_t filter); -int machine__load_kallsyms(struct machine *self, const char *filename, +int machine__load_kallsyms(struct machine *machine, const char *filename, enum map_type type, symbol_filter_t filter); -int machine__load_vmlinux_path(struct machine *self, enum map_type type, +int machine__load_vmlinux_path(struct machine *machine, enum map_type type, symbol_filter_t filter); size_t __dsos__fprintf(struct list_head *head, FILE *fp); -size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits); -size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp); -size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits); - -size_t dso__fprintf_buildid(struct dso *self, FILE *fp); -size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp); -size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp); +size_t machine__fprintf_dsos_buildid(struct machine *machine, + FILE *fp, bool with_hits); +size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp); +size_t machines__fprintf_dsos_buildid(struct rb_root *machines, + FILE *fp, bool with_hits); +size_t dso__fprintf_buildid(struct dso *dso, FILE *fp); +size_t dso__fprintf_symbols_by_name(struct dso *dso, + enum map_type type, FILE *fp); +size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); enum symtab_type { SYMTAB__KALLSYMS = 0, @@ -207,34 +209,36 @@ enum symtab_type { SYMTAB__NOT_FOUND, }; -char dso__symtab_origin(const struct dso *self); -void dso__set_long_name(struct dso *self, char *name); -void dso__set_build_id(struct dso *self, void *build_id); -void dso__read_running_kernel_build_id(struct dso *self, struct machine *machine); -struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr); -struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, +char dso__symtab_origin(const struct dso *dso); +void dso__set_long_name(struct dso *dso, char *name); +void dso__set_build_id(struct dso *dso, void *build_id); +void dso__read_running_kernel_build_id(struct dso *dso, + struct machine *machine); +struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, + u64 addr); +struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, const char *name); int filename__read_build_id(const char *filename, void *bf, size_t size); int sysfs__read_build_id(const char *filename, void *bf, size_t size); bool __dsos__read_build_ids(struct list_head *head, bool with_hits); -int build_id__sprintf(const u8 *self, int len, char *bf); +int build_id__sprintf(const u8 *build_id, int len, char *bf); int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, char type, u64 start, u64 end)); -void machine__destroy_kernel_maps(struct machine *self); -int __machine__create_kernel_maps(struct machine *self, struct dso *kernel); -int machine__create_kernel_maps(struct machine *self); +void machine__destroy_kernel_maps(struct machine *machine); +int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel); +int machine__create_kernel_maps(struct machine *machine); -int machines__create_kernel_maps(struct rb_root *self, pid_t pid); -int machines__create_guest_kernel_maps(struct rb_root *self); -void machines__destroy_guest_kernel_maps(struct rb_root *self); +int machines__create_kernel_maps(struct rb_root *machines, pid_t pid); +int machines__create_guest_kernel_maps(struct rb_root *machines); +void machines__destroy_guest_kernel_maps(struct rb_root *machines); int symbol__init(void); void symbol__exit(void); bool symbol_type__is_a(char symbol_type, enum map_type map_type); -size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp); +size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); #endif /* __PERF_SYMBOL */ -- cgit v1.2.2 From ec80fde746e3ccf93895d25ae1a7071c9af52585 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 26 May 2011 09:53:51 -0300 Subject: perf symbols: Handle /proc/sys/kernel/kptr_restrict Perf uses /proc/modules to figure out where kernel modules are loaded. With the advent of kptr_restrict, non root users get zeroes for all module start addresses. So check if kptr_restrict is non zero and don't generate the syntethic PERF_RECORD_MMAP events for them. Warn the user about it in perf record and in perf report. In perf report the reference relocation symbol being zero means that kptr_restrict was set, thus /proc/kallsyms has only zeroed addresses, so don't use it to fixup symbol addresses when using a valid kallsyms (in the buildid cache) or vmlinux (in the vmlinux path) build-id located automatically or specified by the user. Provide an explanation about it in 'perf report' if kernel samples were taken, checking if a suitable vmlinux or kallsyms was found/specified. Restricted /proc/kallsyms don't go to the buildid cache anymore. Example: [acme@emilia ~]$ perf record -F 100000 sleep 1 WARNING: Kernel address maps (/proc/{kallsyms,modules}) are restricted, check /proc/sys/kernel/kptr_restrict. Samples in kernel functions may not be resolved if a suitable vmlinux file is not found in the buildid cache or in the vmlinux path. Samples in kernel modules won't be resolved at all. If some relocation was applied (e.g. kexec) symbols may be misresolved even with a suitable vmlinux or kallsyms file. [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.005 MB perf.data (~231 samples) ] [acme@emilia ~]$ [acme@emilia ~]$ perf report --stdio Kernel address maps (/proc/{kallsyms,modules}) were restricted, check /proc/sys/kernel/kptr_restrict before running 'perf record'. If some relocation was applied (e.g. kexec) symbols may be misresolved. Samples in kernel modules can't be resolved as well. # Events: 13 cycles # # Overhead Command Shared Object Symbol # ........ ....... ................. ..................... # 20.24% sleep [kernel.kallsyms] [k] page_fault 20.04% sleep [kernel.kallsyms] [k] filemap_fault 19.78% sleep [kernel.kallsyms] [k] __lru_cache_add 19.69% sleep ld-2.12.so [.] memcpy 14.71% sleep [kernel.kallsyms] [k] dput 4.70% sleep [kernel.kallsyms] [k] flush_signal_handlers 0.73% sleep [kernel.kallsyms] [k] perf_event_comm 0.11% sleep [kernel.kallsyms] [k] native_write_msr_safe # # (For a higher level overview, try: perf report --sort comm,dso) # [acme@emilia ~]$ This is because it found a suitable vmlinux (build-id checked) in /lib/modules/2.6.39-rc7+/build/vmlinux (use -v in perf report to see the long file name). If we remove that file from the vmlinux path: [root@emilia ~]# mv /lib/modules/2.6.39-rc7+/build/vmlinux \ /lib/modules/2.6.39-rc7+/build/vmlinux.OFF [acme@emilia ~]$ perf report --stdio [kernel.kallsyms] with build id 57298cdbe0131f6871667ec0eaab4804dcf6f562 not found, continuing without symbols Kernel address maps (/proc/{kallsyms,modules}) were restricted, check /proc/sys/kernel/kptr_restrict before running 'perf record'. As no suitable kallsyms nor vmlinux was found, kernel samples can't be resolved. Samples in kernel modules can't be resolved as well. # Events: 13 cycles # # Overhead Command Shared Object Symbol # ........ ....... ................. ...... # 80.31% sleep [kernel.kallsyms] [k] 0xffffffff8103425a 19.69% sleep ld-2.12.so [.] memcpy # # (For a higher level overview, try: perf report --sort comm,dso) # [acme@emilia ~]$ Reported-by: Stephane Eranian Suggested-by: David Miller Cc: Dave Jones Cc: David Miller Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Kees Cook Cc: Linus Torvalds Cc: Mike Galbraith Cc: Paul Mackerras Cc: Pekka Enberg Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Tom Zanussi Link: http://lkml.kernel.org/n/tip-mt512joaxxbhhp1odop04yit@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/symbol.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'tools/perf/util/symbol.h') diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 242de0101a86..325ee36a9d29 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -75,7 +75,8 @@ struct symbol_conf { use_callchain, exclude_other, show_cpu_utilization, - initialized; + initialized, + kptr_restrict; const char *vmlinux_name, *kallsyms_name, *source_prefix, -- cgit v1.2.2