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authorJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-11 10:41:07 +0300
committerJosé Pekkarinen <jose.pekkarinen@nokia.com>2016-04-13 08:17:18 +0300
commite09b41010ba33a20a87472ee821fa407a5b8da36 (patch)
treed10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/tools/lib/traceevent
parentf93b97fd65072de626c074dbe099a1fff05ce060 (diff)
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page. During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/tools/lib/traceevent')
-rw-r--r--kernel/tools/lib/traceevent/.gitignore1
-rw-r--r--kernel/tools/lib/traceevent/Makefile36
-rw-r--r--kernel/tools/lib/traceevent/event-parse.c172
-rw-r--r--kernel/tools/lib/traceevent/event-parse.h10
-rw-r--r--kernel/tools/lib/traceevent/plugin_cfg80211.c13
-rw-r--r--kernel/tools/lib/traceevent/plugin_kvm.c25
6 files changed, 227 insertions, 30 deletions
diff --git a/kernel/tools/lib/traceevent/.gitignore b/kernel/tools/lib/traceevent/.gitignore
index 35f56be5a..3c60335fe 100644
--- a/kernel/tools/lib/traceevent/.gitignore
+++ b/kernel/tools/lib/traceevent/.gitignore
@@ -1 +1,2 @@
TRACEEVENT-CFLAGS
+libtraceevent-dynamic-list
diff --git a/kernel/tools/lib/traceevent/Makefile b/kernel/tools/lib/traceevent/Makefile
index d410da335..7851df149 100644
--- a/kernel/tools/lib/traceevent/Makefile
+++ b/kernel/tools/lib/traceevent/Makefile
@@ -23,6 +23,7 @@ endef
# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
$(call allow-override,CC,$(CROSS_COMPILE)gcc)
$(call allow-override,AR,$(CROSS_COMPILE)ar)
+$(call allow-override,NM,$(CROSS_COMPILE)nm)
EXT = -std=gnu99
INSTALL = install
@@ -34,9 +35,15 @@ INSTALL = install
DESTDIR ?=
DESTDIR_SQ = '$(subst ','\'',$(DESTDIR))'
+LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
+ifeq ($(LP64), 1)
+ libdir_relative = lib64
+else
+ libdir_relative = lib
+endif
+
prefix ?= /usr/local
-bindir_relative = bin
-bindir = $(prefix)/$(bindir_relative)
+libdir = $(prefix)/$(libdir_relative)
man_dir = $(prefix)/share/man
man_dir_SQ = '$(subst ','\'',$(man_dir))'
@@ -58,7 +65,7 @@ ifeq ($(prefix),$(HOME))
override plugin_dir = $(HOME)/.traceevent/plugins
set_plugin_dir := 0
else
-override plugin_dir = $(prefix)/lib/traceevent/plugins
+override plugin_dir = $(libdir)/traceevent/plugins
endif
endif
@@ -85,11 +92,11 @@ srctree := $(patsubst %/,%,$(dir $(srctree)))
#$(info Determined 'srctree' to be $(srctree))
endif
-export prefix bindir src obj
+export prefix libdir src obj
# Shell quotes
-bindir_SQ = $(subst ','\'',$(bindir))
-bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
+libdir_SQ = $(subst ','\'',$(libdir))
+libdir_relative_SQ = $(subst ','\'',$(libdir_relative))
plugin_dir_SQ = $(subst ','\'',$(plugin_dir))
LIB_FILE = libtraceevent.a libtraceevent.so
@@ -151,8 +158,9 @@ PLUGINS_IN := $(PLUGINS:.so=-in.o)
TE_IN := $(OUTPUT)libtraceevent-in.o
LIB_FILE := $(addprefix $(OUTPUT),$(LIB_FILE))
+DYNAMIC_LIST_FILE := $(OUTPUT)libtraceevent-dynamic-list
-CMD_TARGETS = $(LIB_FILE) $(PLUGINS)
+CMD_TARGETS = $(LIB_FILE) $(PLUGINS) $(DYNAMIC_LIST_FILE)
TARGETS = $(CMD_TARGETS)
@@ -169,6 +177,9 @@ $(OUTPUT)libtraceevent.so: $(TE_IN)
$(OUTPUT)libtraceevent.a: $(TE_IN)
$(QUIET_LINK)$(RM) $@; $(AR) rcs $@ $^
+$(OUTPUT)libtraceevent-dynamic-list: $(PLUGINS)
+ $(QUIET_GEN)$(call do_generate_dynamic_list_file, $(PLUGINS), $@)
+
plugins: $(PLUGINS)
__plugin_obj = $(notdir $@)
@@ -238,9 +249,16 @@ define do_install_plugins
done
endef
+define do_generate_dynamic_list_file
+ (echo '{'; \
+ $(NM) -u -D $1 | awk 'NF>1 {print "\t"$$2";"}' | sort -u; \
+ echo '};'; \
+ ) > $2
+endef
+
install_lib: all_cmd install_plugins
$(call QUIET_INSTALL, $(LIB_FILE)) \
- $(call do_install,$(LIB_FILE),$(bindir_SQ))
+ $(call do_install,$(LIB_FILE),$(libdir_SQ))
install_plugins: $(PLUGINS)
$(call QUIET_INSTALL, trace_plugins) \
@@ -250,7 +268,7 @@ install: install_lib
clean:
$(call QUIET_CLEAN, libtraceevent) \
- $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
+ $(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \
$(RM) TRACEEVENT-CFLAGS tags TAGS
PHONY += force plugins
diff --git a/kernel/tools/lib/traceevent/event-parse.c b/kernel/tools/lib/traceevent/event-parse.c
index 29f94f6f0..68276f35e 100644
--- a/kernel/tools/lib/traceevent/event-parse.c
+++ b/kernel/tools/lib/traceevent/event-parse.c
@@ -418,7 +418,7 @@ static int func_map_init(struct pevent *pevent)
}
static struct func_map *
-find_func(struct pevent *pevent, unsigned long long addr)
+__find_func(struct pevent *pevent, unsigned long long addr)
{
struct func_map *func;
struct func_map key;
@@ -434,6 +434,71 @@ find_func(struct pevent *pevent, unsigned long long addr)
return func;
}
+struct func_resolver {
+ pevent_func_resolver_t *func;
+ void *priv;
+ struct func_map map;
+};
+
+/**
+ * pevent_set_function_resolver - set an alternative function resolver
+ * @pevent: handle for the pevent
+ * @resolver: function to be used
+ * @priv: resolver function private state.
+ *
+ * Some tools may have already a way to resolve kernel functions, allow them to
+ * keep using it instead of duplicating all the entries inside
+ * pevent->funclist.
+ */
+int pevent_set_function_resolver(struct pevent *pevent,
+ pevent_func_resolver_t *func, void *priv)
+{
+ struct func_resolver *resolver = malloc(sizeof(*resolver));
+
+ if (resolver == NULL)
+ return -1;
+
+ resolver->func = func;
+ resolver->priv = priv;
+
+ free(pevent->func_resolver);
+ pevent->func_resolver = resolver;
+
+ return 0;
+}
+
+/**
+ * pevent_reset_function_resolver - reset alternative function resolver
+ * @pevent: handle for the pevent
+ *
+ * Stop using whatever alternative resolver was set, use the default
+ * one instead.
+ */
+void pevent_reset_function_resolver(struct pevent *pevent)
+{
+ free(pevent->func_resolver);
+ pevent->func_resolver = NULL;
+}
+
+static struct func_map *
+find_func(struct pevent *pevent, unsigned long long addr)
+{
+ struct func_map *map;
+
+ if (!pevent->func_resolver)
+ return __find_func(pevent, addr);
+
+ map = &pevent->func_resolver->map;
+ map->mod = NULL;
+ map->addr = addr;
+ map->func = pevent->func_resolver->func(pevent->func_resolver->priv,
+ &map->addr, &map->mod);
+ if (map->func == NULL)
+ return NULL;
+
+ return map;
+}
+
/**
* pevent_find_function - find a function by a given address
* @pevent: handle for the pevent
@@ -783,6 +848,7 @@ static void free_arg(struct print_arg *arg)
free(arg->bitmask.bitmask);
break;
case PRINT_DYNAMIC_ARRAY:
+ case PRINT_DYNAMIC_ARRAY_LEN:
free(arg->dynarray.index);
break;
case PRINT_OP:
@@ -1387,7 +1453,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
do_warning_event(event, "%s: no type found", __func__);
goto fail;
}
- field->name = last_token;
+ field->name = field->alias = last_token;
if (test_type(type, EVENT_OP))
goto fail;
@@ -1469,7 +1535,7 @@ static int event_read_fields(struct event_format *event, struct format_field **f
size_dynamic = type_size(field->name);
free_token(field->name);
strcat(field->type, brackets);
- field->name = token;
+ field->name = field->alias = token;
type = read_token(&token);
} else {
char *new_type;
@@ -1680,6 +1746,9 @@ process_cond(struct event_format *event, struct print_arg *top, char **tok)
type = process_arg(event, left, &token);
again:
+ if (type == EVENT_ERROR)
+ goto out_free;
+
/* Handle other operations in the arguments */
if (type == EVENT_OP && strcmp(token, ":") != 0) {
type = process_op(event, left, &token);
@@ -1939,6 +2008,12 @@ process_op(struct event_format *event, struct print_arg *arg, char **tok)
goto out_warn_free;
type = process_arg_token(event, right, tok, type);
+ if (type == EVENT_ERROR) {
+ free_arg(right);
+ /* token was freed in process_arg_token() via *tok */
+ token = NULL;
+ goto out_free;
+ }
if (right->type == PRINT_OP &&
get_op_prio(arg->op.op) < get_op_prio(right->op.op)) {
@@ -2655,6 +2730,42 @@ process_dynamic_array(struct event_format *event, struct print_arg *arg, char **
}
static enum event_type
+process_dynamic_array_len(struct event_format *event, struct print_arg *arg,
+ char **tok)
+{
+ struct format_field *field;
+ enum event_type type;
+ char *token;
+
+ if (read_expect_type(EVENT_ITEM, &token) < 0)
+ goto out_free;
+
+ arg->type = PRINT_DYNAMIC_ARRAY_LEN;
+
+ /* Find the field */
+ field = pevent_find_field(event, token);
+ if (!field)
+ goto out_free;
+
+ arg->dynarray.field = field;
+ arg->dynarray.index = 0;
+
+ if (read_expected(EVENT_DELIM, ")") < 0)
+ goto out_err;
+
+ type = read_token(&token);
+ *tok = token;
+
+ return type;
+
+ out_free:
+ free_token(token);
+ out_err:
+ *tok = NULL;
+ return EVENT_ERROR;
+}
+
+static enum event_type
process_paren(struct event_format *event, struct print_arg *arg, char **tok)
{
struct print_arg *item_arg;
@@ -2901,6 +3012,10 @@ process_function(struct event_format *event, struct print_arg *arg,
free_token(token);
return process_dynamic_array(event, arg, tok);
}
+ if (strcmp(token, "__get_dynamic_array_len") == 0) {
+ free_token(token);
+ return process_dynamic_array_len(event, arg, tok);
+ }
func = find_func_handler(event->pevent, token);
if (func) {
@@ -3581,14 +3696,25 @@ eval_num_arg(void *data, int size, struct event_format *event, struct print_arg
goto out_warning_op;
}
break;
+ case PRINT_DYNAMIC_ARRAY_LEN:
+ offset = pevent_read_number(pevent,
+ data + arg->dynarray.field->offset,
+ arg->dynarray.field->size);
+ /*
+ * The total allocated length of the dynamic array is
+ * stored in the top half of the field, and the offset
+ * is in the bottom half of the 32 bit field.
+ */
+ val = (unsigned long long)(offset >> 16);
+ break;
case PRINT_DYNAMIC_ARRAY:
/* Without [], we pass the address to the dynamic data */
offset = pevent_read_number(pevent,
data + arg->dynarray.field->offset,
arg->dynarray.field->size);
/*
- * The actual length of the dynamic array is stored
- * in the top half of the field, and the offset
+ * The total allocated length of the dynamic array is
+ * stored in the top half of the field, and the offset
* is in the bottom half of the 32 bit field.
*/
offset &= 0xffff;
@@ -3721,7 +3847,7 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
struct format_field *field;
struct printk_map *printk;
long long val, fval;
- unsigned long addr;
+ unsigned long long addr;
char *str;
unsigned char *hex;
int print;
@@ -3754,13 +3880,30 @@ static void print_str_arg(struct trace_seq *s, void *data, int size,
*/
if (!(field->flags & FIELD_IS_ARRAY) &&
field->size == pevent->long_size) {
- addr = *(unsigned long *)(data + field->offset);
+
+ /* Handle heterogeneous recording and processing
+ * architectures
+ *
+ * CASE I:
+ * Traces recorded on 32-bit devices (32-bit
+ * addressing) and processed on 64-bit devices:
+ * In this case, only 32 bits should be read.
+ *
+ * CASE II:
+ * Traces recorded on 64 bit devices and processed
+ * on 32-bit devices:
+ * In this case, 64 bits must be read.
+ */
+ addr = (pevent->long_size == 8) ?
+ *(unsigned long long *)(data + field->offset) :
+ (unsigned long long)*(unsigned int *)(data + field->offset);
+
/* Check if it matches a print format */
printk = find_printk(pevent, addr);
if (printk)
trace_seq_puts(s, printk->printk);
else
- trace_seq_printf(s, "%lx", addr);
+ trace_seq_printf(s, "%llx", addr);
break;
}
str = malloc(len + 1);
@@ -4754,6 +4897,7 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
case 'z':
case 'Z':
case '0' ... '9':
+ case '-':
goto cont_process;
case 'p':
if (pevent->long_size == 4)
@@ -4761,8 +4905,8 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
else
ls = 2;
- if (*(ptr+1) == 'F' ||
- *(ptr+1) == 'f') {
+ if (*(ptr+1) == 'F' || *(ptr+1) == 'f' ||
+ *(ptr+1) == 'S' || *(ptr+1) == 's') {
ptr++;
show_func = *ptr;
} else if (*(ptr+1) == 'M' || *(ptr+1) == 'm') {
@@ -4824,13 +4968,12 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
sizeof(long) != 8) {
char *p;
- ls = 2;
/* make %l into %ll */
- p = strchr(format, 'l');
- if (p)
+ if (ls == 1 && (p = strchr(format, 'l')))
memmove(p+1, p, strlen(p)+1);
else if (strcmp(format, "%p") == 0)
strcpy(format, "0x%llx");
+ ls = 2;
}
switch (ls) {
case -2:
@@ -6444,6 +6587,8 @@ void pevent_ref(struct pevent *pevent)
void pevent_free_format_field(struct format_field *field)
{
free(field->type);
+ if (field->alias != field->name)
+ free(field->alias);
free(field->name);
free(field);
}
@@ -6562,6 +6707,7 @@ void pevent_free(struct pevent *pevent)
free(pevent->trace_clock);
free(pevent->events);
free(pevent->sort_events);
+ free(pevent->func_resolver);
free(pevent);
}
diff --git a/kernel/tools/lib/traceevent/event-parse.h b/kernel/tools/lib/traceevent/event-parse.h
index 86a5839fb..6fc83c7ed 100644
--- a/kernel/tools/lib/traceevent/event-parse.h
+++ b/kernel/tools/lib/traceevent/event-parse.h
@@ -191,6 +191,7 @@ struct format_field {
struct event_format *event;
char *type;
char *name;
+ char *alias;
int offset;
int size;
unsigned int arraylen;
@@ -293,6 +294,7 @@ enum print_arg_type {
PRINT_OP,
PRINT_FUNC,
PRINT_BITMASK,
+ PRINT_DYNAMIC_ARRAY_LEN,
};
struct print_arg {
@@ -452,6 +454,10 @@ struct cmdline_list;
struct func_map;
struct func_list;
struct event_handler;
+struct func_resolver;
+
+typedef char *(pevent_func_resolver_t)(void *priv,
+ unsigned long long *addrp, char **modp);
struct pevent {
int ref_count;
@@ -480,6 +486,7 @@ struct pevent {
int cmdline_count;
struct func_map *func_map;
+ struct func_resolver *func_resolver;
struct func_list *funclist;
unsigned int func_count;
@@ -610,6 +617,9 @@ enum trace_flag_type {
TRACE_FLAG_SOFTIRQ = 0x10,
};
+int pevent_set_function_resolver(struct pevent *pevent,
+ pevent_func_resolver_t *func, void *priv);
+void pevent_reset_function_resolver(struct pevent *pevent);
int pevent_register_comm(struct pevent *pevent, const char *comm, int pid);
int pevent_register_trace_clock(struct pevent *pevent, const char *trace_clock);
int pevent_register_function(struct pevent *pevent, char *name,
diff --git a/kernel/tools/lib/traceevent/plugin_cfg80211.c b/kernel/tools/lib/traceevent/plugin_cfg80211.c
index 4592d8438..ec57d0c1f 100644
--- a/kernel/tools/lib/traceevent/plugin_cfg80211.c
+++ b/kernel/tools/lib/traceevent/plugin_cfg80211.c
@@ -4,6 +4,19 @@
#include <endian.h>
#include "event-parse.h"
+/*
+ * From glibc endian.h, for older systems where it is not present, e.g.: RHEL5,
+ * Fedora6.
+ */
+#ifndef le16toh
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+# define le16toh(x) (x)
+# else
+# define le16toh(x) __bswap_16 (x)
+# endif
+#endif
+
+
static unsigned long long
process___le16_to_cpup(struct trace_seq *s, unsigned long long *args)
{
diff --git a/kernel/tools/lib/traceevent/plugin_kvm.c b/kernel/tools/lib/traceevent/plugin_kvm.c
index 88fe83dff..18536f756 100644
--- a/kernel/tools/lib/traceevent/plugin_kvm.c
+++ b/kernel/tools/lib/traceevent/plugin_kvm.c
@@ -124,7 +124,10 @@ static const char *disassemble(unsigned char *insn, int len, uint64_t rip,
_ER(WBINVD, 54) \
_ER(XSETBV, 55) \
_ER(APIC_WRITE, 56) \
- _ER(INVPCID, 58)
+ _ER(INVPCID, 58) \
+ _ER(PML_FULL, 62) \
+ _ER(XSAVES, 63) \
+ _ER(XRSTORS, 64)
#define SVM_EXIT_REASONS \
_ER(EXIT_READ_CR0, 0x000) \
@@ -352,15 +355,18 @@ static int kvm_nested_vmexit_handler(struct trace_seq *s, struct pevent_record *
union kvm_mmu_page_role {
unsigned word;
struct {
- unsigned glevels:4;
unsigned level:4;
+ unsigned cr4_pae:1;
unsigned quadrant:2;
- unsigned pad_for_nice_hex_output:6;
unsigned direct:1;
unsigned access:3;
unsigned invalid:1;
- unsigned cr4_pge:1;
unsigned nxe:1;
+ unsigned cr0_wp:1;
+ unsigned smep_and_not_wp:1;
+ unsigned smap_and_not_wp:1;
+ unsigned pad_for_nice_hex_output:8;
+ unsigned smm:8;
};
};
@@ -385,15 +391,18 @@ static int kvm_mmu_print_role(struct trace_seq *s, struct pevent_record *record,
if (pevent_is_file_bigendian(event->pevent) ==
pevent_is_host_bigendian(event->pevent)) {
- trace_seq_printf(s, "%u/%u q%u%s %s%s %spge %snxe",
+ trace_seq_printf(s, "%u q%u%s %s%s %spae %snxe %swp%s%s%s",
role.level,
- role.glevels,
role.quadrant,
role.direct ? " direct" : "",
access_str[role.access],
role.invalid ? " invalid" : "",
- role.cr4_pge ? "" : "!",
- role.nxe ? "" : "!");
+ role.cr4_pae ? "" : "!",
+ role.nxe ? "" : "!",
+ role.cr0_wp ? "" : "!",
+ role.smep_and_not_wp ? " smep" : "",
+ role.smap_and_not_wp ? " smap" : "",
+ role.smm ? " smm" : "");
} else
trace_seq_printf(s, "WORD: %08x", role.word);