Merge tag 'perf-core-for-mingo-4.19-20180815' of...

Merge tag 'perf-core-for-mingo-4.19-20180815' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux into perf/urgent

Pull perf/core improvements and fixes from Arnaldo Carvalho de Melo:

kernel:

- kallsyms, x86: Export addresses of PTI entry trampolines (Alexander Shishkin)

- kallsyms: Simplify update_iter_mod() (Adrian Hunter)

- x86: Add entry trampolines to kcore (Adrian Hunter)

Hardware tracing:

- Fix auxtrace queue resize (Adrian Hunter)

Arch specific:

- Fix uninitialized ARM SPE record error variable (Kim Phillips)

- Fix trace event post-processing in powerpc (Sandipan Das)

Build:

- Fix check-headers.sh AND list path of execution (Alexander Kapshuk)

- Remove -mcet and -fcf-protection when building the python binding
  with older clang versions (Arnaldo Carvalho de Melo)

- Make check-headers.sh check based on kernel dir (Jiri Olsa)

- Move syscall_64.tbl check into check-headers.sh (Jiri Olsa)

Infrastructure:

- Check for null when copying nsinfo.  (Benno Evers)

Libraries:

- Rename libtraceevent prefixes, prep work for making it a shared
  library generaly available (Tzvetomir Stoyanov (VMware))
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

arch/x86/mm/cpu_entry_area.c

@@ -2,6 +2,8 @@
 
 #include <linux/spinlock.h>
 #include <linux/percpu.h>
+#include <linux/kallsyms.h>
+#include <linux/kcore.h>
 
 #include <asm/cpu_entry_area.h>
 #include <asm/pgtable.h>
@@ -13,6 +15,7 @@ static DEFINE_PER_CPU_PAGE_ALIGNED(struct entry_stack_page, entry_stack_storage)
 #ifdef CONFIG_X86_64
 static DEFINE_PER_CPU_PAGE_ALIGNED(char, exception_stacks
 	[(N_EXCEPTION_STACKS - 1) * EXCEPTION_STKSZ + DEBUG_STKSZ]);
+static DEFINE_PER_CPU(struct kcore_list, kcore_entry_trampoline);
 #endif
 
 struct cpu_entry_area *get_cpu_entry_area(int cpu)
@@ -146,10 +149,40 @@ static void __init setup_cpu_entry_area(int cpu)
 
 	cea_set_pte(&get_cpu_entry_area(cpu)->entry_trampoline,
 		     __pa_symbol(_entry_trampoline), PAGE_KERNEL_RX);
+	/*
+	 * The cpu_entry_area alias addresses are not in the kernel binary
+	 * so they do not show up in /proc/kcore normally.  This adds entries
+	 * for them manually.
+	 */
+	kclist_add_remap(&per_cpu(kcore_entry_trampoline, cpu),
+			 _entry_trampoline,
+			 &get_cpu_entry_area(cpu)->entry_trampoline, PAGE_SIZE);
 #endif
 	percpu_setup_debug_store(cpu);
 }
 
+#ifdef CONFIG_X86_64
+int arch_get_kallsym(unsigned int symnum, unsigned long *value, char *type,
+		     char *name)
+{
+	unsigned int cpu, ncpu = 0;
+
+	if (symnum >= num_possible_cpus())
+		return -EINVAL;
+
+	for_each_possible_cpu(cpu) {
+		if (ncpu++ >= symnum)
+			break;
+	}
+
+	*value = (unsigned long)&get_cpu_entry_area(cpu)->entry_trampoline;
+	*type = 't';
+	strlcpy(name, "__entry_SYSCALL_64_trampoline", KSYM_NAME_LEN);
+
+	return 0;
+}
+#endif
+
 static __init void setup_cpu_entry_area_ptes(void)
 {
 #ifdef CONFIG_X86_32

fs/proc/kcore.c

@@ -383,8 +383,11 @@ static void elf_kcore_store_hdr(char *bufp, int nphdr, int dataoff)
 		phdr->p_type	= PT_LOAD;
 		phdr->p_flags	= PF_R|PF_W|PF_X;
 		phdr->p_offset	= kc_vaddr_to_offset(m->addr) + dataoff;
+		if (m->type == KCORE_REMAP)
+			phdr->p_vaddr	= (size_t)m->vaddr;
+		else
 			phdr->p_vaddr	= (size_t)m->addr;
-		if (m->type == KCORE_RAM || m->type == KCORE_TEXT)
+		if (m->type == KCORE_RAM || m->type == KCORE_TEXT || m->type == KCORE_REMAP)
 			phdr->p_paddr	= __pa(m->addr);
 		else
 			phdr->p_paddr	= (elf_addr_t)-1;

include/linux/kcore.h

@@ -12,11 +12,13 @@ enum kcore_type {
 	KCORE_VMEMMAP,
 	KCORE_USER,
 	KCORE_OTHER,
+	KCORE_REMAP,
 };
 
 struct kcore_list {
 	struct list_head list;
 	unsigned long addr;
+	unsigned long vaddr;
 	size_t size;
 	int type;
 };
@@ -36,11 +38,22 @@ struct vmcoredd_node {
 
 #ifdef CONFIG_PROC_KCORE
 extern void kclist_add(struct kcore_list *, void *, size_t, int type);
+static inline
+void kclist_add_remap(struct kcore_list *m, void *addr, void *vaddr, size_t sz)
+{
+	m->vaddr = (unsigned long)vaddr;
+	kclist_add(m, addr, sz, KCORE_REMAP);
+}
 #else
 static inline
 void kclist_add(struct kcore_list *new, void *addr, size_t size, int type)
 {
 }
+
+static inline
+void kclist_add_remap(struct kcore_list *m, void *addr, void *vaddr, size_t sz)
+{
+}
 #endif
 
 #endif /* _LINUX_KCORE_H */

kernel/kallsyms.c

@@ -432,6 +432,7 @@ int sprint_backtrace(char *buffer, unsigned long address)
 /* To avoid using get_symbol_offset for every symbol, we carry prefix along. */
 struct kallsym_iter {
 	loff_t pos;
+	loff_t pos_arch_end;
 	loff_t pos_mod_end;
 	loff_t pos_ftrace_mod_end;
 	unsigned long value;
@@ -443,9 +444,29 @@ struct kallsym_iter {
 	int show_value;
 };
 
+int __weak arch_get_kallsym(unsigned int symnum, unsigned long *value,
+			    char *type, char *name)
+{
+	return -EINVAL;
+}
+
+static int get_ksymbol_arch(struct kallsym_iter *iter)
+{
+	int ret = arch_get_kallsym(iter->pos - kallsyms_num_syms,
+				   &iter->value, &iter->type,
+				   iter->name);
+
+	if (ret < 0) {
+		iter->pos_arch_end = iter->pos;
+		return 0;
+	}
+
+	return 1;
+}
+
 static int get_ksymbol_mod(struct kallsym_iter *iter)
 {
-	int ret = module_get_kallsym(iter->pos - kallsyms_num_syms,
+	int ret = module_get_kallsym(iter->pos - iter->pos_arch_end,
 				     &iter->value, &iter->type,
 				     iter->name, iter->module_name,
 				     &iter->exported);
@@ -501,32 +522,34 @@ static void reset_iter(struct kallsym_iter *iter, loff_t new_pos)
 	iter->nameoff = get_symbol_offset(new_pos);
 	iter->pos = new_pos;
 	if (new_pos == 0) {
+		iter->pos_arch_end = 0;
 		iter->pos_mod_end = 0;
 		iter->pos_ftrace_mod_end = 0;
 	}
 }
 
+/*
+ * The end position (last + 1) of each additional kallsyms section is recorded
+ * in iter->pos_..._end as each section is added, and so can be used to
+ * determine which get_ksymbol_...() function to call next.
+ */
 static int update_iter_mod(struct kallsym_iter *iter, loff_t pos)
 {
 	iter->pos = pos;
 
-	if (iter->pos_ftrace_mod_end > 0 &&
-	    iter->pos_ftrace_mod_end < iter->pos)
-		return get_ksymbol_bpf(iter);
-
-	if (iter->pos_mod_end > 0 &&
-	    iter->pos_mod_end < iter->pos) {
-		if (!get_ksymbol_ftrace_mod(iter))
-			return get_ksymbol_bpf(iter);
+	if ((!iter->pos_arch_end || iter->pos_arch_end > pos) &&
+	    get_ksymbol_arch(iter))
 		return 1;
-	}
 
-	if (!get_ksymbol_mod(iter)) {
-		if (!get_ksymbol_ftrace_mod(iter))
-			return get_ksymbol_bpf(iter);
-	}
+	if ((!iter->pos_mod_end || iter->pos_mod_end > pos) &&
+	    get_ksymbol_mod(iter))
+		return 1;
 
+	if ((!iter->pos_ftrace_mod_end || iter->pos_ftrace_mod_end > pos) &&
+	    get_ksymbol_ftrace_mod(iter))
 		return 1;
+
+	return get_ksymbol_bpf(iter);
 }
 
 /* Returns false if pos at or past end of file. */

tools/lib/lockdep/Makefile

@@ -129,12 +129,12 @@ $(OUTPUT)liblockdep.a: $(LIB_IN)
 tags:	force
 	$(RM) tags
 	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
-	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
+	--regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/'
 
 TAGS:	force
 	$(RM) TAGS
 	find . -name '*.[ch]' | xargs etags \
-	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
+	--regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/'
 
 define do_install
 	$(print_install)				\

tools/lib/traceevent/Makefile

@@ -233,12 +233,12 @@ endef
 tags:	force
 	$(RM) tags
 	find . -name '*.[ch]' | xargs ctags --extra=+f --c-kinds=+px \
-	--regex-c++='/_PE\(([^,)]*).*/PEVENT_ERRNO__\1/'
+	--regex-c++='/_PE\(([^,)]*).*/TEP_ERRNO__\1/'
 
 TAGS:	force
 	$(RM) TAGS
 	find . -name '*.[ch]' | xargs etags \
-	--regex='/_PE(\([^,)]*\).*/PEVENT_ERRNO__\1/'
+	--regex='/_PE(\([^,)]*\).*/TEP_ERRNO__\1/'
 
 define do_install_mkdir
 	if [ ! -d '$(DESTDIR_SQ)$1' ]; then		\

tools/lib/traceevent/event-plugin.c

@@ -34,7 +34,7 @@
 
 static struct registered_plugin_options {
 	struct registered_plugin_options	*next;
-	struct pevent_plugin_option		*options;
+	struct tep_plugin_option		*options;
 } *registered_options;
 
 static struct trace_plugin_options {
@@ -58,7 +58,7 @@ static void lower_case(char *str)
 		*str = tolower(*str);
 }
 
-static int update_option_value(struct pevent_plugin_option *op, const char *val)
+static int update_option_value(struct tep_plugin_option *op, const char *val)
 {
 	char *op_val;
 
@@ -97,7 +97,7 @@ static int update_option_value(struct pevent_plugin_option *op, const char *val)
 }
 
 /**
- * traceevent_plugin_list_options - get list of plugin options
+ * tep_plugin_list_options - get list of plugin options
  *
  * Returns an array of char strings that list the currently registered
  * plugin options in the format of <plugin>:<option>. This list can be
@@ -106,12 +106,12 @@ static int update_option_value(struct pevent_plugin_option *op, const char *val)
  * Returns NULL if there's no options registered. On error it returns
  * INVALID_PLUGIN_LIST_OPTION
  *
- * Must be freed with traceevent_plugin_free_options_list().
+ * Must be freed with tep_plugin_free_options_list().
  */
-char **traceevent_plugin_list_options(void)
+char **tep_plugin_list_options(void)
 {
 	struct registered_plugin_options *reg;
-	struct pevent_plugin_option *op;
+	struct tep_plugin_option *op;
 	char **list = NULL;
 	char *name;
 	int count = 0;
@@ -146,7 +146,7 @@ char **traceevent_plugin_list_options(void)
 	return INVALID_PLUGIN_LIST_OPTION;
 }
 
-void traceevent_plugin_free_options_list(char **list)
+void tep_plugin_free_options_list(char **list)
 {
 	int i;
 
@@ -163,7 +163,7 @@ void traceevent_plugin_free_options_list(char **list)
 }
 
 static int
-update_option(const char *file, struct pevent_plugin_option *option)
+update_option(const char *file, struct tep_plugin_option *option)
 {
 	struct trace_plugin_options *op;
 	char *plugin;
@@ -215,14 +215,14 @@ update_option(const char *file, struct pevent_plugin_option *option)
 }
 
 /**
- * traceevent_plugin_add_options - Add a set of options by a plugin
+ * tep_plugin_add_options - Add a set of options by a plugin
  * @name: The name of the plugin adding the options
  * @options: The set of options being loaded
  *
  * Sets the options with the values that have been added by user.
  */
-int traceevent_plugin_add_options(const char *name,
-				  struct pevent_plugin_option *options)
+int tep_plugin_add_options(const char *name,
+			   struct tep_plugin_option *options)
 {
 	struct registered_plugin_options *reg;
 
@@ -241,10 +241,10 @@ int traceevent_plugin_add_options(const char *name,
 }
 
 /**
- * traceevent_plugin_remove_options - remove plugin options that were registered
- * @options: Options to removed that were registered with traceevent_plugin_add_options
+ * tep_plugin_remove_options - remove plugin options that were registered
+ * @options: Options to removed that were registered with tep_plugin_add_options
  */
-void traceevent_plugin_remove_options(struct pevent_plugin_option *options)
+void tep_plugin_remove_options(struct tep_plugin_option *options)
 {
 	struct registered_plugin_options **last;
 	struct registered_plugin_options *reg;
@@ -260,17 +260,17 @@ void traceevent_plugin_remove_options(struct pevent_plugin_option *options)
 }
 
 /**
- * traceevent_print_plugins - print out the list of plugins loaded
+ * tep_print_plugins - print out the list of plugins loaded
  * @s: the trace_seq descripter to write to
  * @prefix: The prefix string to add before listing the option name
  * @suffix: The suffix string ot append after the option name
- * @list: The list of plugins (usually returned by traceevent_load_plugins()
+ * @list: The list of plugins (usually returned by tep_load_plugins()
  *
  * Writes to the trace_seq @s the list of plugins (files) that is
- * returned by traceevent_load_plugins(). Use @prefix and @suffix for formating:
+ * returned by tep_load_plugins(). Use @prefix and @suffix for formating:
  * @prefix = "  ", @suffix = "\n".
  */
-void traceevent_print_plugins(struct trace_seq *s,
+void tep_print_plugins(struct trace_seq *s,
 		       const char *prefix, const char *suffix,
 		       const struct plugin_list *list)
 {
@@ -281,11 +281,11 @@ void traceevent_print_plugins(struct trace_seq *s,
 }
 
 static void
-load_plugin(struct pevent *pevent, const char *path,
+load_plugin(struct tep_handle *pevent, const char *path,
 	    const char *file, void *data)
 {
 	struct plugin_list **plugin_list = data;
-	pevent_plugin_load_func func;
+	tep_plugin_load_func func;
 	struct plugin_list *list;
 	const char *alias;
 	char *plugin;
@@ -305,14 +305,14 @@ load_plugin(struct pevent *pevent, const char *path,
 		goto out_free;
 	}
 
-	alias = dlsym(handle, PEVENT_PLUGIN_ALIAS_NAME);
+	alias = dlsym(handle, TEP_PLUGIN_ALIAS_NAME);
 	if (!alias)
 		alias = file;
 
-	func = dlsym(handle, PEVENT_PLUGIN_LOADER_NAME);
+	func = dlsym(handle, TEP_PLUGIN_LOADER_NAME);
 	if (!func) {
 		warning("could not find func '%s' in plugin '%s'\n%s\n",
-			PEVENT_PLUGIN_LOADER_NAME, plugin, dlerror());
+			TEP_PLUGIN_LOADER_NAME, plugin, dlerror());
 		goto out_free;
 	}
 
@@ -336,9 +336,9 @@ load_plugin(struct pevent *pevent, const char *path,
 }
 
 static void
-load_plugins_dir(struct pevent *pevent, const char *suffix,
+load_plugins_dir(struct tep_handle *pevent, const char *suffix,
 		 const char *path,
-		 void (*load_plugin)(struct pevent *pevent,
+		 void (*load_plugin)(struct tep_handle *pevent,
 				     const char *path,
 				     const char *name,
 				     void *data),
@@ -378,8 +378,8 @@ load_plugins_dir(struct pevent *pevent, const char *suffix,
 }
 
 static void
-load_plugins(struct pevent *pevent, const char *suffix,
-	     void (*load_plugin)(struct pevent *pevent,
+load_plugins(struct tep_handle *pevent, const char *suffix,
+	     void (*load_plugin)(struct tep_handle *pevent,
 				 const char *path,
 				 const char *name,
 				 void *data),
@@ -390,7 +390,7 @@ load_plugins(struct pevent *pevent, const char *suffix,
 	char *envdir;
 	int ret;
 
-	if (pevent->flags & PEVENT_DISABLE_PLUGINS)
+	if (pevent->flags & TEP_DISABLE_PLUGINS)
 		return;
 
 	/*
@@ -398,7 +398,7 @@ load_plugins(struct pevent *pevent, const char *suffix,
 	 * check that first.
 	 */
 #ifdef PLUGIN_DIR
-	if (!(pevent->flags & PEVENT_DISABLE_SYS_PLUGINS))
+	if (!(pevent->flags & TEP_DISABLE_SYS_PLUGINS))
 		load_plugins_dir(pevent, suffix, PLUGIN_DIR,
 				 load_plugin, data);
 #endif
@@ -431,7 +431,7 @@ load_plugins(struct pevent *pevent, const char *suffix,
 }
 
 struct plugin_list*
-traceevent_load_plugins(struct pevent *pevent)
+tep_load_plugins(struct tep_handle *pevent)
 {
 	struct plugin_list *list = NULL;
 
@@ -440,15 +440,15 @@ traceevent_load_plugins(struct pevent *pevent)
 }
 
 void
-traceevent_unload_plugins(struct plugin_list *plugin_list, struct pevent *pevent)
+tep_unload_plugins(struct plugin_list *plugin_list, struct tep_handle *pevent)
 {
-	pevent_plugin_unload_func func;
+	tep_plugin_unload_func func;
 	struct plugin_list *list;
 
 	while (plugin_list) {
 		list = plugin_list;
 		plugin_list = list->next;
-		func = dlsym(list->handle, PEVENT_PLUGIN_UNLOADER_NAME);
+		func = dlsym(list->handle, TEP_PLUGIN_UNLOADER_NAME);
 		if (func)
 			func(pevent);
 		dlclose(list->handle);

tools/lib/traceevent/plugin_cfg80211.c

@@ -25,19 +25,19 @@ process___le16_to_cpup(struct trace_seq *s, unsigned long long *args)
 	return val ? (long long) le16toh(*val) : 0;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_print_function(pevent,
+	tep_register_print_function(pevent,
 				    process___le16_to_cpup,
-				       PEVENT_FUNC_ARG_INT,
+				    TEP_FUNC_ARG_INT,
 				    "__le16_to_cpup",
-				       PEVENT_FUNC_ARG_PTR,
-				       PEVENT_FUNC_ARG_VOID);
+				    TEP_FUNC_ARG_PTR,
+				    TEP_FUNC_ARG_VOID);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_print_function(pevent, process___le16_to_cpup,
+	tep_unregister_print_function(pevent, process___le16_to_cpup,
 				      "__le16_to_cpup");
 }

tools/lib/traceevent/plugin_function.c

@@ -33,7 +33,7 @@ static int cpus = -1;
 
 #define STK_BLK 10
 
-struct pevent_plugin_option plugin_options[] =
+struct tep_plugin_option plugin_options[] =
 {
 	{
 		.name = "parent",
@@ -53,8 +53,8 @@ struct pevent_plugin_option plugin_options[] =
 	}
 };
 
-static struct pevent_plugin_option *ftrace_parent = &plugin_options[0];
-static struct pevent_plugin_option *ftrace_indent = &plugin_options[1];
+static struct tep_plugin_option *ftrace_parent = &plugin_options[0];
+static struct tep_plugin_option *ftrace_indent = &plugin_options[1];
 
 static void add_child(struct func_stack *stack, const char *child, int pos)
 {
@@ -122,25 +122,25 @@ static int add_and_get_index(const char *parent, const char *child, int cpu)
 	return 0;
 }
 
-static int function_handler(struct trace_seq *s, struct pevent_record *record,
+static int function_handler(struct trace_seq *s, struct tep_record *record,
 			    struct event_format *event, void *context)
 {
-	struct pevent *pevent = event->pevent;
+	struct tep_handle *pevent = event->pevent;
 	unsigned long long function;
 	unsigned long long pfunction;
 	const char *func;
 	const char *parent;
 	int index = 0;
 
-	if (pevent_get_field_val(s, event, "ip", record, &function, 1))
+	if (tep_get_field_val(s, event, "ip", record, &function, 1))
 		return trace_seq_putc(s, '!');
 
-	func = pevent_find_function(pevent, function);
+	func = tep_find_function(pevent, function);
 
-	if (pevent_get_field_val(s, event, "parent_ip", record, &pfunction, 1))
+	if (tep_get_field_val(s, event, "parent_ip", record, &pfunction, 1))
 		return trace_seq_putc(s, '!');
 
-	parent = pevent_find_function(pevent, pfunction);
+	parent = tep_find_function(pevent, pfunction);
 
 	if (parent && ftrace_indent->set)
 		index = add_and_get_index(parent, func, record->cpu);
@@ -163,21 +163,21 @@ static int function_handler(struct trace_seq *s, struct pevent_record *record,
 	return 0;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_event_handler(pevent, -1, "ftrace", "function",
+	tep_register_event_handler(pevent, -1, "ftrace", "function",
 				   function_handler, NULL);
 
-	traceevent_plugin_add_options("ftrace", plugin_options);
+	tep_plugin_add_options("ftrace", plugin_options);
 
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
 	int i, x;
 
-	pevent_unregister_event_handler(pevent, -1, "ftrace", "function",
+	tep_unregister_event_handler(pevent, -1, "ftrace", "function",
 				     function_handler, NULL);
 
 	for (i = 0; i <= cpus; i++) {
@@ -186,7 +186,7 @@ void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
 		free(fstack[i].stack);
 	}
 
-	traceevent_plugin_remove_options(plugin_options);
+	tep_plugin_remove_options(plugin_options);
 
 	free(fstack);
 	fstack = NULL;

tools/lib/traceevent/plugin_hrtimer.c

@@ -25,64 +25,64 @@
 #include "event-parse.h"
 
 static int timer_expire_handler(struct trace_seq *s,
-				struct pevent_record *record,
+				struct tep_record *record,
 				struct event_format *event, void *context)
 {
 	trace_seq_printf(s, "hrtimer=");
 
-	if (pevent_print_num_field(s, "0x%llx", event, "timer",
+	if (tep_print_num_field(s, "0x%llx", event, "timer",
 				record, 0) == -1)
-		pevent_print_num_field(s, "0x%llx", event, "hrtimer",
+		tep_print_num_field(s, "0x%llx", event, "hrtimer",
 				    record, 1);
 
 	trace_seq_printf(s, " now=");
 
-	pevent_print_num_field(s, "%llu", event, "now", record, 1);
+	tep_print_num_field(s, "%llu", event, "now", record, 1);
 
-	pevent_print_func_field(s, " function=%s", event, "function",
+	tep_print_func_field(s, " function=%s", event, "function",
 				record, 0);
 	return 0;
 }
 
 static int timer_start_handler(struct trace_seq *s,
-			       struct pevent_record *record,
+			       struct tep_record *record,
 			       struct event_format *event, void *context)
 {
 	trace_seq_printf(s, "hrtimer=");
 
-	if (pevent_print_num_field(s, "0x%llx", event, "timer",
+	if (tep_print_num_field(s, "0x%llx", event, "timer",
 				record, 0) == -1)
-		pevent_print_num_field(s, "0x%llx", event, "hrtimer",
+		tep_print_num_field(s, "0x%llx", event, "hrtimer",
 				    record, 1);
 
-	pevent_print_func_field(s, " function=%s", event, "function",
+	tep_print_func_field(s, " function=%s", event, "function",
 			     record, 0);
 
 	trace_seq_printf(s, " expires=");
-	pevent_print_num_field(s, "%llu", event, "expires", record, 1);
+	tep_print_num_field(s, "%llu", event, "expires", record, 1);
 
 	trace_seq_printf(s, " softexpires=");
-	pevent_print_num_field(s, "%llu", event, "softexpires", record, 1);
+	tep_print_num_field(s, "%llu", event, "softexpires", record, 1);
 	return 0;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_event_handler(pevent, -1,
+	tep_register_event_handler(pevent, -1,
 				   "timer", "hrtimer_expire_entry",
 				   timer_expire_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_register_event_handler(pevent, -1, "timer", "hrtimer_start",
 				   timer_start_handler, NULL);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_event_handler(pevent, -1,
+	tep_unregister_event_handler(pevent, -1,
 				     "timer", "hrtimer_expire_entry",
 				     timer_expire_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
+	tep_unregister_event_handler(pevent, -1, "timer", "hrtimer_start",
 				     timer_start_handler, NULL);
 }

tools/lib/traceevent/plugin_jbd2.c

@@ -47,29 +47,29 @@ process_jiffies_to_msecs(struct trace_seq *s, unsigned long long *args)
 	return jiffies;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_print_function(pevent,
+	tep_register_print_function(pevent,
 				    process_jbd2_dev_to_name,
-				       PEVENT_FUNC_ARG_STRING,
+				    TEP_FUNC_ARG_STRING,
 				    "jbd2_dev_to_name",
-				       PEVENT_FUNC_ARG_INT,
-				       PEVENT_FUNC_ARG_VOID);
+				    TEP_FUNC_ARG_INT,
+				    TEP_FUNC_ARG_VOID);
 
-	pevent_register_print_function(pevent,
+	tep_register_print_function(pevent,
 				    process_jiffies_to_msecs,
-				       PEVENT_FUNC_ARG_LONG,
+				    TEP_FUNC_ARG_LONG,
 				    "jiffies_to_msecs",
-				       PEVENT_FUNC_ARG_LONG,
-				       PEVENT_FUNC_ARG_VOID);
+				    TEP_FUNC_ARG_LONG,
+				    TEP_FUNC_ARG_VOID);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_print_function(pevent, process_jbd2_dev_to_name,
+	tep_unregister_print_function(pevent, process_jbd2_dev_to_name,
 				      "jbd2_dev_to_name");
 
-	pevent_unregister_print_function(pevent, process_jiffies_to_msecs,
+	tep_unregister_print_function(pevent, process_jiffies_to_msecs,
 				      "jiffies_to_msecs");
 }

tools/lib/traceevent/plugin_kmem.c

@@ -23,7 +23,7 @@
 
 #include "event-parse.h"
 
-static int call_site_handler(struct trace_seq *s, struct pevent_record *record,
+static int call_site_handler(struct trace_seq *s, struct tep_record *record,
 			     struct event_format *event, void *context)
 {
 	struct format_field *field;
@@ -31,64 +31,64 @@ static int call_site_handler(struct trace_seq *s, struct pevent_record *record,
 	void *data = record->data;
 	const char *func;
 
-	field = pevent_find_field(event, "call_site");
+	field = tep_find_field(event, "call_site");
 	if (!field)
 		return 1;
 
-	if (pevent_read_number_field(field, data, &val))
+	if (tep_read_number_field(field, data, &val))
 		return 1;
 
-	func = pevent_find_function(event->pevent, val);
+	func = tep_find_function(event->pevent, val);
 	if (!func)
 		return 1;
 
-	addr = pevent_find_function_address(event->pevent, val);
+	addr = tep_find_function_address(event->pevent, val);
 
 	trace_seq_printf(s, "(%s+0x%x) ", func, (int)(val - addr));
 	return 1;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_event_handler(pevent, -1, "kmem", "kfree",
+	tep_register_event_handler(pevent, -1, "kmem", "kfree",
 				   call_site_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_register_event_handler(pevent, -1, "kmem", "kmalloc",
 				   call_site_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_register_event_handler(pevent, -1, "kmem", "kmalloc_node",
 				   call_site_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
 				   call_site_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "kmem",
+	tep_register_event_handler(pevent, -1, "kmem",
 				   "kmem_cache_alloc_node",
 				   call_site_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_register_event_handler(pevent, -1, "kmem", "kmem_cache_free",
 				   call_site_handler, NULL);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_event_handler(pevent, -1, "kmem", "kfree",
+	tep_unregister_event_handler(pevent, -1, "kmem", "kfree",
 				     call_site_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc",
+	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc",
 				     call_site_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node",
+	tep_unregister_event_handler(pevent, -1, "kmem", "kmalloc_node",
 				     call_site_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
+	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_alloc",
 				     call_site_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "kmem",
+	tep_unregister_event_handler(pevent, -1, "kmem",
 				     "kmem_cache_alloc_node",
 				     call_site_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free",
+	tep_unregister_event_handler(pevent, -1, "kmem", "kmem_cache_free",
 				     call_site_handler, NULL);
 }

tools/lib/traceevent/plugin_mac80211.c

@@ -28,7 +28,7 @@
 static void print_string(struct trace_seq *s, struct event_format *event,
 			 const char *name, const void *data)
 {
-	struct format_field *f = pevent_find_field(event, name);
+	struct format_field *f = tep_find_field(event, name);
 	int offset;
 	int length;
 
@@ -42,7 +42,7 @@ static void print_string(struct trace_seq *s, struct event_format *event,
 
 	if (!strncmp(f->type, "__data_loc", 10)) {
 		unsigned long long v;
-		if (pevent_read_number_field(f, data, &v)) {
+		if (tep_read_number_field(f, data, &v)) {
 			trace_seq_printf(s, "invalid_data_loc");
 			return;
 		}
@@ -53,12 +53,12 @@ static void print_string(struct trace_seq *s, struct event_format *event,
 	trace_seq_printf(s, "%.*s", length, (char *)data + offset);
 }
 
-#define SF(fn)	pevent_print_num_field(s, fn ":%d", event, fn, record, 0)
-#define SFX(fn)	pevent_print_num_field(s, fn ":%#x", event, fn, record, 0)
+#define SF(fn)	tep_print_num_field(s, fn ":%d", event, fn, record, 0)
+#define SFX(fn)	tep_print_num_field(s, fn ":%#x", event, fn, record, 0)
 #define SP()	trace_seq_putc(s, ' ')
 
 static int drv_bss_info_changed(struct trace_seq *s,
-				struct pevent_record *record,
+				struct tep_record *record,
 				struct event_format *event, void *context)
 {
 	void *data = record->data;
@@ -66,7 +66,7 @@ static int drv_bss_info_changed(struct trace_seq *s,
 	print_string(s, event, "wiphy_name", data);
 	trace_seq_printf(s, " vif:");
 	print_string(s, event, "vif_name", data);
-	pevent_print_num_field(s, "(%d)", event, "vif_type", record, 1);
+	tep_print_num_field(s, "(%d)", event, "vif_type", record, 1);
 
 	trace_seq_printf(s, "\n%*s", INDENT, "");
 	SF("assoc"); SP();
@@ -86,17 +86,17 @@ static int drv_bss_info_changed(struct trace_seq *s,
 	return 0;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_event_handler(pevent, -1, "mac80211",
+	tep_register_event_handler(pevent, -1, "mac80211",
 				   "drv_bss_info_changed",
 				   drv_bss_info_changed, NULL);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_event_handler(pevent, -1, "mac80211",
+	tep_unregister_event_handler(pevent, -1, "mac80211",
 				     "drv_bss_info_changed",
 				     drv_bss_info_changed, NULL);
 }

tools/lib/traceevent/plugin_sched_switch.c

@@ -45,7 +45,7 @@ static void write_state(struct trace_seq *s, int val)
 }
 
 static void write_and_save_comm(struct format_field *field,
-				struct pevent_record *record,
+				struct tep_record *record,
 				struct trace_seq *s, int pid)
 {
 	const char *comm;
@@ -61,100 +61,100 @@ static void write_and_save_comm(struct format_field *field,
 	comm = &s->buffer[len];
 
 	/* Help out the comm to ids. This will handle dups */
-	pevent_register_comm(field->event->pevent, comm, pid);
+	tep_register_comm(field->event->pevent, comm, pid);
 }
 
 static int sched_wakeup_handler(struct trace_seq *s,
-				struct pevent_record *record,
+				struct tep_record *record,
 				struct event_format *event, void *context)
 {
 	struct format_field *field;
 	unsigned long long val;
 
-	if (pevent_get_field_val(s, event, "pid", record, &val, 1))
+	if (tep_get_field_val(s, event, "pid", record, &val, 1))
 		return trace_seq_putc(s, '!');
 
-	field = pevent_find_any_field(event, "comm");
+	field = tep_find_any_field(event, "comm");
 	if (field) {
 		write_and_save_comm(field, record, s, val);
 		trace_seq_putc(s, ':');
 	}
 	trace_seq_printf(s, "%lld", val);
 
-	if (pevent_get_field_val(s, event, "prio", record, &val, 0) == 0)
+	if (tep_get_field_val(s, event, "prio", record, &val, 0) == 0)
 		trace_seq_printf(s, " [%lld]", val);
 
-	if (pevent_get_field_val(s, event, "success", record, &val, 1) == 0)
+	if (tep_get_field_val(s, event, "success", record, &val, 1) == 0)
 		trace_seq_printf(s, " success=%lld", val);
 
-	if (pevent_get_field_val(s, event, "target_cpu", record, &val, 0) == 0)
+	if (tep_get_field_val(s, event, "target_cpu", record, &val, 0) == 0)
 		trace_seq_printf(s, " CPU:%03llu", val);
 
 	return 0;
 }
 
 static int sched_switch_handler(struct trace_seq *s,
-				struct pevent_record *record,
+				struct tep_record *record,
 				struct event_format *event, void *context)
 {
 	struct format_field *field;
 	unsigned long long val;
 
-	if (pevent_get_field_val(s, event, "prev_pid", record, &val, 1))
+	if (tep_get_field_val(s, event, "prev_pid", record, &val, 1))
 		return trace_seq_putc(s, '!');
 
-	field = pevent_find_any_field(event, "prev_comm");
+	field = tep_find_any_field(event, "prev_comm");
 	if (field) {
 		write_and_save_comm(field, record, s, val);
 		trace_seq_putc(s, ':');
 	}
 	trace_seq_printf(s, "%lld ", val);
 
-	if (pevent_get_field_val(s, event, "prev_prio", record, &val, 0) == 0)
+	if (tep_get_field_val(s, event, "prev_prio", record, &val, 0) == 0)
 		trace_seq_printf(s, "[%d] ", (int) val);
 
-	if (pevent_get_field_val(s,  event, "prev_state", record, &val, 0) == 0)
+	if (tep_get_field_val(s,  event, "prev_state", record, &val, 0) == 0)
 		write_state(s, val);
 
 	trace_seq_puts(s, " ==> ");
 
-	if (pevent_get_field_val(s, event, "next_pid", record, &val, 1))
+	if (tep_get_field_val(s, event, "next_pid", record, &val, 1))
 		return trace_seq_putc(s, '!');
 
-	field = pevent_find_any_field(event, "next_comm");
+	field = tep_find_any_field(event, "next_comm");
 	if (field) {
 		write_and_save_comm(field, record, s, val);
 		trace_seq_putc(s, ':');
 	}
 	trace_seq_printf(s, "%lld", val);
 
-	if (pevent_get_field_val(s, event, "next_prio", record, &val, 0) == 0)
+	if (tep_get_field_val(s, event, "next_prio", record, &val, 0) == 0)
 		trace_seq_printf(s, " [%d]", (int) val);
 
 	return 0;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_register_event_handler(pevent, -1, "sched", "sched_switch",
 				   sched_switch_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup",
 				   sched_wakeup_handler, NULL);
 
-	pevent_register_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_register_event_handler(pevent, -1, "sched", "sched_wakeup_new",
 				   sched_wakeup_handler, NULL);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_event_handler(pevent, -1, "sched", "sched_switch",
+	tep_unregister_event_handler(pevent, -1, "sched", "sched_switch",
 				     sched_switch_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "sched", "sched_wakeup",
+	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup",
 				     sched_wakeup_handler, NULL);
 
-	pevent_unregister_event_handler(pevent, -1, "sched", "sched_wakeup_new",
+	tep_unregister_event_handler(pevent, -1, "sched", "sched_wakeup_new",
 				     sched_wakeup_handler, NULL);
 }

tools/lib/traceevent/plugin_scsi.c

@@ -413,21 +413,21 @@ unsigned long long process_scsi_trace_parse_cdb(struct trace_seq *s,
 	return 0;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_print_function(pevent,
+	tep_register_print_function(pevent,
 				    process_scsi_trace_parse_cdb,
-				       PEVENT_FUNC_ARG_STRING,
+				    TEP_FUNC_ARG_STRING,
 				    "scsi_trace_parse_cdb",
-				       PEVENT_FUNC_ARG_PTR,
-				       PEVENT_FUNC_ARG_PTR,
-				       PEVENT_FUNC_ARG_INT,
-				       PEVENT_FUNC_ARG_VOID);
+				    TEP_FUNC_ARG_PTR,
+				    TEP_FUNC_ARG_PTR,
+				    TEP_FUNC_ARG_INT,
+				    TEP_FUNC_ARG_VOID);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_print_function(pevent, process_scsi_trace_parse_cdb,
+	tep_unregister_print_function(pevent, process_scsi_trace_parse_cdb,
 				      "scsi_trace_parse_cdb");
 }

tools/lib/traceevent/plugin_xen.c

@@ -119,19 +119,19 @@ unsigned long long process_xen_hypercall_name(struct trace_seq *s,
 	return 0;
 }
 
-int PEVENT_PLUGIN_LOADER(struct pevent *pevent)
+int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
-	pevent_register_print_function(pevent,
+	tep_register_print_function(pevent,
 				    process_xen_hypercall_name,
-				       PEVENT_FUNC_ARG_STRING,
+				    TEP_FUNC_ARG_STRING,
 				    "xen_hypercall_name",
-				       PEVENT_FUNC_ARG_INT,
-				       PEVENT_FUNC_ARG_VOID);
+				    TEP_FUNC_ARG_INT,
+				    TEP_FUNC_ARG_VOID);
 	return 0;
 }
 
-void PEVENT_PLUGIN_UNLOADER(struct pevent *pevent)
+void TEP_PLUGIN_UNLOADER(struct tep_handle *pevent)
 {
-	pevent_unregister_print_function(pevent, process_xen_hypercall_name,
+	tep_unregister_print_function(pevent, process_xen_hypercall_name,
 				      "xen_hypercall_name");
 }

tools/perf/Documentation/perf-annotate.txt

@@ -118,6 +118,15 @@ OPTIONS
 --group::
 	Show event group information together
 
+--percent-type::
+	Set annotation percent type from following choices:
+	  global-period, local-period, global-hits, local-hits
+
+	The local/global keywords set if the percentage is computed
+	in the scope of the function (local) or the whole data (global).
+	The period/hits keywords set the base the percentage is computed
+	on - the samples period or the number of samples (hits).
+
 SEE ALSO
 --------
 linkperf:perf-record[1], linkperf:perf-report[1]

tools/perf/Documentation/perf-report.txt

@@ -477,6 +477,15 @@ include::itrace.txt[]
 	Display monitored tasks stored in perf data. Displaying pid/tid/ppid
 	plus the command string aligned to distinguish parent and child tasks.
 
+--percent-type::
+	Set annotation percent type from following choices:
+	  global-period, local-period, global-hits, local-hits
+
+	The local/global keywords set if the percentage is computed
+	in the scope of the function (local) or the whole data (global).
+	The period/hits keywords set the base the percentage is computed
+	on - the samples period or the number of samples (hits).
+
 include::callchain-overhead-calculation.txt[]
 
 SEE ALSO

tools/perf/arch/arm64/util/arm-spe.c

@@ -194,6 +194,7 @@ struct auxtrace_record *arm_spe_recording_init(int *err,
 	sper->itr.read_finish = arm_spe_read_finish;
 	sper->itr.alignment = 0;
 
+	*err = 0;
 	return &sper->itr;
 }
 

tools/perf/arch/powerpc/util/sym-handling.c

@@ -141,8 +141,10 @@ void arch__post_process_probe_trace_events(struct perf_probe_event *pev,
 	for (i = 0; i < ntevs; i++) {
 		tev = &pev->tevs[i];
 		map__for_each_symbol(map, sym, tmp) {
-			if (map->unmap_ip(map, sym->start) == tev->point.address)
+			if (map->unmap_ip(map, sym->start) == tev->point.address) {
 				arch__fix_tev_from_maps(pev, tev, map, sym);
+				break;
+			}
 		}
 	}
 }

tools/perf/arch/s390/util/auxtrace.c

@@ -30,6 +30,7 @@ cpumsf_info_fill(struct auxtrace_record *itr __maybe_unused,
 		 struct auxtrace_info_event *auxtrace_info __maybe_unused,
 		 size_t priv_size __maybe_unused)
 {
+	auxtrace_info->type = PERF_AUXTRACE_S390_CPUMSF;
 	return 0;
 }
 

tools/perf/arch/x86/Makefile

@@ -19,9 +19,6 @@ systbl := $(sys)/syscalltbl.sh
 _dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)')
 
 $(header): $(sys)/syscall_64.tbl $(systbl)
-	@(test -d ../../kernel -a -d ../../tools -a -d ../perf && ( \
-        (diff -B arch/x86/entry/syscalls/syscall_64.tbl ../../arch/x86/entry/syscalls/syscall_64.tbl >/dev/null) \
-        || echo "Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'" >&2 )) || true
 	$(Q)$(SHELL) '$(systbl)' $(sys)/syscall_64.tbl 'x86_64' > $@
 
 clean::

tools/perf/builtin-annotate.c

@@ -542,6 +542,10 @@ int cmd_annotate(int argc, const char **argv)
 	OPT_CALLBACK_DEFAULT(0, "stdio-color", NULL, "mode",
 			     "'always' (default), 'never' or 'auto' only applicable to --stdio mode",
 			     stdio__config_color, "always"),
+	OPT_CALLBACK(0, "percent-type", &annotate.opts, "local-period",
+		     "Set percent type local/global-period/hits",
+		     annotate_parse_percent_type),
+
 	OPT_END()
 	};
 	int ret;

tools/perf/builtin-kmem.c

@@ -729,7 +729,7 @@ static char *compact_gfp_string(unsigned long gfp_flags)
 static int parse_gfp_flags(struct perf_evsel *evsel, struct perf_sample *sample,
 			   unsigned int gfp_flags)
 {
-	struct pevent_record record = {
+	struct tep_record record = {
 		.cpu = sample->cpu,
 		.data = sample->raw_data,
 		.size = sample->raw_size,
@@ -747,7 +747,7 @@ static int parse_gfp_flags(struct perf_evsel *evsel, struct perf_sample *sample,
 	}
 
 	trace_seq_init(&seq);
-	pevent_event_info(&seq, evsel->tp_format, &record);
+	tep_event_info(&seq, evsel->tp_format, &record);
 
 	str = strtok_r(seq.buffer, " ", &pos);
 	while (str) {
@@ -1974,7 +1974,7 @@ int cmd_kmem(int argc, const char **argv)
 			goto out_delete;
 		}
 
-		kmem_page_size = pevent_get_page_size(evsel->tp_format->pevent);
+		kmem_page_size = tep_get_page_size(evsel->tp_format->pevent);
 		symbol_conf.use_callchain = true;
 	}
 

tools/perf/builtin-report.c

@@ -1124,6 +1124,9 @@ int cmd_report(int argc, const char **argv)
 		   "Time span of interest (start,stop)"),
 	OPT_BOOLEAN(0, "inline", &symbol_conf.inline_name,
 		    "Show inline function"),
+	OPT_CALLBACK(0, "percent-type", &report.annotation_opts, "local-period",
+		     "Set percent type local/global-period/hits",
+		     annotate_parse_percent_type),
 	OPT_END()
 	};
 	struct perf_data data = {
@@ -1366,7 +1369,7 @@ int cmd_report(int argc, const char **argv)
 	}
 
 	if (session->tevent.pevent &&
-	    pevent_set_function_resolver(session->tevent.pevent,
+	    tep_set_function_resolver(session->tevent.pevent,
 				      machine__resolve_kernel_addr,
 				      &session->machines.host) < 0) {
 		pr_err("%s: failed to set libtraceevent function resolver\n",

tools/perf/builtin-script.c

@@ -3429,7 +3429,7 @@ int cmd_script(int argc, const char **argv)
 		symbol_conf.use_callchain = false;
 
 	if (session->tevent.pevent &&
-	    pevent_set_function_resolver(session->tevent.pevent,
+	    tep_set_function_resolver(session->tevent.pevent,
 				      machine__resolve_kernel_addr,
 				      &session->machines.host) < 0) {
 		pr_err("%s: failed to set libtraceevent function resolver\n", __func__);

tools/perf/check-headers.sh

@@ -67,8 +67,12 @@ check_2 () {
 
   cmd="diff $* $file1 $file2 > /dev/null"
 
-  test -f $file2 &&
-  eval $cmd || echo "Warning: Kernel ABI header at 'tools/$file' differs from latest version at '$file'" >&2
+  test -f $file2 && {
+    eval $cmd || {
+      echo "Warning: Kernel ABI header at '$file1' differs from latest version at '$file2'" >&2
+      echo diff -u $file1 $file2
+    }
+  }
 }
 
 check () {
@@ -76,7 +80,7 @@ check () {
 
   shift
 
-  check_2 ../$file ../../$file $*
+  check_2 tools/$file $file $*
 }
 
 # Check if we have the kernel headers (tools/perf/../../include), else
@@ -84,6 +88,8 @@ check () {
 # differences.
 test -d ../../include || exit 0
 
+cd ../..
+
 # simple diff check
 for i in $HEADERS; do
   check $i -B
@@ -94,3 +100,8 @@ check arch/x86/lib/memcpy_64.S        '-I "^EXPORT_SYMBOL" -I "^#include <asm/ex
 check arch/x86/lib/memset_64.S        '-I "^EXPORT_SYMBOL" -I "^#include <asm/export.h>"'
 check include/uapi/asm-generic/mman.h '-I "^#include <\(uapi/\)*asm-generic/mman-common.h>"'
 check include/uapi/linux/mman.h       '-I "^#include <\(uapi/\)*asm/mman.h>"'
+
+# diff non-symmetric files
+check_2 tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
+
+cd tools/perf

tools/perf/examples/bpf/hello.c

+#include <stdio.h>
+
+int syscall_enter(openat)(void *args)
+{
+	puts("Hello, world\n");
+	return 0;
+}
+
+license(GPL);

tools/perf/examples/bpf/sys_enter_openat.c

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hook into 'openat' syscall entry tracepoint
+ *
+ * Test it with:
+ *
+ * perf trace -e tools/perf/examples/bpf/sys_enter_openat.c cat /etc/passwd > /dev/null
+ *
+ * It'll catch some openat syscalls related to the dynamic linked and
+ * the last one should be the one for '/etc/passwd'.
+ *
+ * The syscall_enter_openat_args can be used to get the syscall fields
+ * and use them for filtering calls, i.e. use in expressions for
+ * the return value.
+ */
+
+#include <bpf.h>
+
+struct syscall_enter_openat_args {
+	unsigned long long unused;
+	long		   syscall_nr;
+	long		   dfd;
+	char		   *filename_ptr;
+	long		   flags;
+	long		   mode;
+};
+
+int syscall_enter(openat)(struct syscall_enter_openat_args *args)
+{
+	return 1;
+}
+
+license(GPL);