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authorRajithaY <rajithax.yerrumsetty@intel.com>2017-04-25 03:31:15 -0700
committerRajitha Yerrumchetty <rajithax.yerrumsetty@intel.com>2017-05-22 06:48:08 +0000
commitbb756eebdac6fd24e8919e2c43f7d2c8c4091f59 (patch)
treeca11e03542edf2d8f631efeca5e1626d211107e3 /qemu/trace
parenta14b48d18a9ed03ec191cf16b162206998a895ce (diff)
Adding qemu as a submodule of KVMFORNFV
This Patch includes the changes to add qemu as a submodule to kvmfornfv repo and make use of the updated latest qemu for the execution of all testcase Change-Id: I1280af507a857675c7f81d30c95255635667bdd7 Signed-off-by:RajithaY<rajithax.yerrumsetty@intel.com>
Diffstat (limited to 'qemu/trace')
-rw-r--r--qemu/trace/Makefile.objs155
-rw-r--r--qemu/trace/control-internal.h75
-rw-r--r--qemu/trace/control.c218
-rw-r--r--qemu/trace/control.h203
-rw-r--r--qemu/trace/event-internal.h31
-rw-r--r--qemu/trace/ftrace.c76
-rw-r--r--qemu/trace/ftrace.h14
-rw-r--r--qemu/trace/qmp.c75
-rw-r--r--qemu/trace/simple.c386
-rw-r--r--qemu/trace/simple.h55
10 files changed, 0 insertions, 1288 deletions
diff --git a/qemu/trace/Makefile.objs b/qemu/trace/Makefile.objs
deleted file mode 100644
index 5145b34d1..000000000
--- a/qemu/trace/Makefile.objs
+++ /dev/null
@@ -1,155 +0,0 @@
-# -*- mode: makefile -*-
-
-######################################################################
-# tracetool source files
-# Every rule that invokes tracetool must depend on this so code is regenerated
-# if tracetool itself changes.
-
-tracetool-y = $(SRC_PATH)/scripts/tracetool.py
-tracetool-y += $(shell find $(SRC_PATH)/scripts/tracetool -name "*.py")
-
-######################################################################
-# Auto-generated event descriptions for LTTng ust code
-
-ifeq ($(findstring ust,$(TRACE_BACKENDS)),ust)
-$(obj)/generated-ust-provider.h: $(obj)/generated-ust-provider.h-timestamp
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-ust-provider.h-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=ust-events-h \
- --backends=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-ust.c: $(obj)/generated-ust.c-timestamp $(BUILD_DIR)/config-host.mak
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-ust.c-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=ust-events-c \
- --backends=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-events.h: $(obj)/generated-ust-provider.h
-$(obj)/generated-events.c: $(obj)/generated-ust.c
-endif
-
-######################################################################
-# Auto-generated event descriptions
-
-$(obj)/generated-events.h: $(obj)/generated-events.h-timestamp
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-events.h-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=events-h \
- --backends=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-events.c: $(obj)/generated-events.c-timestamp $(BUILD_DIR)/config-host.mak
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-events.c-timestamp: $(SRC_PATH)/trace-events $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=events-c \
- --backends=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-util-obj-y += generated-events.o
-
-
-######################################################################
-# Auto-generated tracing routines
-
-##################################################
-# Execution level
-
-$(obj)/generated-tracers.h: $(obj)/generated-tracers.h-timestamp
- @cmp -s $< $@ || cp $< $@
-$(obj)/generated-tracers.h-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=h \
- --backends=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-##############################
-# non-DTrace
-
-$(obj)/generated-tracers.c: $(obj)/generated-tracers.c-timestamp
- @cmp -s $< $@ || cp $< $@
-$(obj)/generated-tracers.c-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=c \
- --backends=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-tracers.o: $(obj)/generated-tracers.c $(obj)/generated-tracers.h
-
-##############################
-# DTrace
-
-# Normal practice is to name DTrace probe file with a '.d' extension
-# but that gets picked up by QEMU's Makefile as an external dependency
-# rule file. So we use '.dtrace' instead
-ifeq ($(findstring dtrace,$(TRACE_BACKENDS)),dtrace)
-$(obj)/generated-tracers-dtrace.dtrace: $(obj)/generated-tracers-dtrace.dtrace-timestamp
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-tracers-dtrace.dtrace-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=d \
- --backends=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-tracers-dtrace.h: $(obj)/generated-tracers-dtrace.dtrace
- $(call quiet-command,dtrace -o $@ -h -s $<, " GEN $@")
-
-$(obj)/generated-tracers-dtrace.o: $(obj)/generated-tracers-dtrace.dtrace
-
-util-obj-y += generated-tracers-dtrace.o
-endif
-
-##################################################
-# Translation level
-
-$(obj)/generated-helpers-wrappers.h: $(obj)/generated-helpers-wrappers.h-timestamp
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-helpers-wrappers.h-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=tcg-helper-wrapper-h \
- --backend=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-helpers.h: $(obj)/generated-helpers.h-timestamp
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-helpers.h-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=tcg-helper-h \
- --backend=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-helpers.c: $(obj)/generated-helpers.c-timestamp
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-helpers.c-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=tcg-helper-c \
- --backend=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-$(obj)/generated-helpers.o: $(obj)/generated-helpers.c
-
-target-obj-y += generated-helpers.o
-
-
-$(obj)/generated-tcg-tracers.h: $(obj)/generated-tcg-tracers.h-timestamp
- @cmp $< $@ >/dev/null 2>&1 || cp $< $@
-$(obj)/generated-tcg-tracers.h-timestamp: $(SRC_PATH)/trace-events $(BUILD_DIR)/config-host.mak $(tracetool-y)
- $(call quiet-command,$(TRACETOOL) \
- --format=tcg-h \
- --backend=$(TRACE_BACKENDS) \
- < $< > $@," GEN $(patsubst %-timestamp,%,$@)")
-
-
-######################################################################
-# Backend code
-
-util-obj-$(CONFIG_TRACE_SIMPLE) += simple.o generated-tracers.o
-util-obj-$(CONFIG_TRACE_FTRACE) += ftrace.o
-util-obj-$(CONFIG_TRACE_UST) += generated-ust.o
-util-obj-y += control.o
-util-obj-y += qmp.o
diff --git a/qemu/trace/control-internal.h b/qemu/trace/control-internal.h
deleted file mode 100644
index dcf67f505..000000000
--- a/qemu/trace/control-internal.h
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * Interface for configuring and controlling the state of tracing events.
- *
- * Copyright (C) 2011-2014 Lluís Vilanova <vilanova@ac.upc.edu>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#ifndef TRACE__CONTROL_INTERNAL_H
-#define TRACE__CONTROL_INTERNAL_H
-
-
-
-extern TraceEvent trace_events[];
-extern bool trace_events_dstate[];
-extern int trace_events_enabled_count;
-
-
-static inline TraceEventID trace_event_count(void)
-{
- return TRACE_EVENT_COUNT;
-}
-
-static inline TraceEvent *trace_event_id(TraceEventID id)
-{
- assert(id < trace_event_count());
- return &trace_events[id];
-}
-
-static inline bool trace_event_is_pattern(const char *str)
-{
- assert(str != NULL);
- return strchr(str, '*') != NULL;
-}
-
-static inline TraceEventID trace_event_get_id(TraceEvent *ev)
-{
- assert(ev != NULL);
- return ev->id;
-}
-
-static inline const char * trace_event_get_name(TraceEvent *ev)
-{
- assert(ev != NULL);
- return ev->name;
-}
-
-static inline bool trace_event_get_state_static(TraceEvent *ev)
-{
- assert(ev != NULL);
- return ev->sstate;
-}
-
-static inline bool trace_event_get_state_dynamic_by_id(int id)
-{
- return unlikely(trace_events_enabled_count) && trace_events_dstate[id];
-}
-
-static inline bool trace_event_get_state_dynamic(TraceEvent *ev)
-{
- int id = trace_event_get_id(ev);
- return trace_event_get_state_dynamic_by_id(id);
-}
-
-static inline void trace_event_set_state_dynamic(TraceEvent *ev, bool state)
-{
- int id = trace_event_get_id(ev);
- assert(ev != NULL);
- assert(trace_event_get_state_static(ev));
- trace_events_enabled_count += state - trace_events_dstate[id];
- trace_events_dstate[id] = state;
-}
-
-#endif /* TRACE__CONTROL_INTERNAL_H */
diff --git a/qemu/trace/control.c b/qemu/trace/control.c
deleted file mode 100644
index d099f735d..000000000
--- a/qemu/trace/control.c
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * Interface for configuring and controlling the state of tracing events.
- *
- * Copyright (C) 2011-2014 Lluís Vilanova <vilanova@ac.upc.edu>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "trace/control.h"
-#include "qemu/help_option.h"
-#ifdef CONFIG_TRACE_SIMPLE
-#include "trace/simple.h"
-#endif
-#ifdef CONFIG_TRACE_FTRACE
-#include "trace/ftrace.h"
-#endif
-#ifdef CONFIG_TRACE_LOG
-#include "qemu/log.h"
-#endif
-#include "qemu/error-report.h"
-#include "monitor/monitor.h"
-
-int trace_events_enabled_count;
-bool trace_events_dstate[TRACE_EVENT_COUNT];
-
-TraceEvent *trace_event_name(const char *name)
-{
- assert(name != NULL);
-
- TraceEventID i;
- for (i = 0; i < trace_event_count(); i++) {
- TraceEvent *ev = trace_event_id(i);
- if (strcmp(trace_event_get_name(ev), name) == 0) {
- return ev;
- }
- }
- return NULL;
-}
-
-static bool pattern_glob(const char *pat, const char *ev)
-{
- while (*pat != '\0' && *ev != '\0') {
- if (*pat == *ev) {
- pat++;
- ev++;
- }
- else if (*pat == '*') {
- if (pattern_glob(pat, ev+1)) {
- return true;
- } else if (pattern_glob(pat+1, ev)) {
- return true;
- } else {
- return false;
- }
- } else {
- return false;
- }
- }
-
- while (*pat == '*') {
- pat++;
- }
-
- if (*pat == '\0' && *ev == '\0') {
- return true;
- } else {
- return false;
- }
-}
-
-TraceEvent *trace_event_pattern(const char *pat, TraceEvent *ev)
-{
- assert(pat != NULL);
-
- TraceEventID i;
-
- if (ev == NULL) {
- i = -1;
- } else {
- i = trace_event_get_id(ev);
- }
- i++;
-
- while (i < trace_event_count()) {
- TraceEvent *res = trace_event_id(i);
- if (pattern_glob(pat, trace_event_get_name(res))) {
- return res;
- }
- i++;
- }
-
- return NULL;
-}
-
-void trace_list_events(void)
-{
- int i;
- for (i = 0; i < trace_event_count(); i++) {
- TraceEvent *res = trace_event_id(i);
- fprintf(stderr, "%s\n", trace_event_get_name(res));
- }
-}
-
-static void do_trace_enable_events(const char *line_buf)
-{
- const bool enable = ('-' != line_buf[0]);
- const char *line_ptr = enable ? line_buf : line_buf + 1;
-
- if (trace_event_is_pattern(line_ptr)) {
- TraceEvent *ev = NULL;
- while ((ev = trace_event_pattern(line_ptr, ev)) != NULL) {
- if (trace_event_get_state_static(ev)) {
- trace_event_set_state_dynamic(ev, enable);
- }
- }
- } else {
- TraceEvent *ev = trace_event_name(line_ptr);
- if (ev == NULL) {
- error_report("WARNING: trace event '%s' does not exist",
- line_ptr);
- } else if (!trace_event_get_state_static(ev)) {
- error_report("WARNING: trace event '%s' is not traceable",
- line_ptr);
- } else {
- trace_event_set_state_dynamic(ev, enable);
- }
- }
-}
-
-void trace_enable_events(const char *line_buf)
-{
- if (is_help_option(line_buf)) {
- trace_list_events();
- if (cur_mon == NULL) {
- exit(0);
- }
- } else {
- do_trace_enable_events(line_buf);
- }
-}
-
-void trace_init_events(const char *fname)
-{
- Location loc;
- FILE *fp;
- char line_buf[1024];
- size_t line_idx = 0;
-
- if (fname == NULL) {
- return;
- }
-
- loc_push_none(&loc);
- loc_set_file(fname, 0);
- fp = fopen(fname, "r");
- if (!fp) {
- error_report("%s", strerror(errno));
- exit(1);
- }
- while (fgets(line_buf, sizeof(line_buf), fp)) {
- loc_set_file(fname, ++line_idx);
- size_t len = strlen(line_buf);
- if (len > 1) { /* skip empty lines */
- line_buf[len - 1] = '\0';
- if ('#' == line_buf[0]) { /* skip commented lines */
- continue;
- }
- trace_enable_events(line_buf);
- }
- }
- if (fclose(fp) != 0) {
- loc_set_file(fname, 0);
- error_report("%s", strerror(errno));
- exit(1);
- }
- loc_pop(&loc);
-}
-
-void trace_init_file(const char *file)
-{
-#ifdef CONFIG_TRACE_SIMPLE
- st_set_trace_file(file);
-#elif defined CONFIG_TRACE_LOG
- /* If both the simple and the log backends are enabled, "-trace file"
- * only applies to the simple backend; use "-D" for the log backend.
- */
- if (file) {
- qemu_set_log_filename(file);
- }
-#else
- if (file) {
- fprintf(stderr, "error: -trace file=...: "
- "option not supported by the selected tracing backends\n");
- exit(1);
- }
-#endif
-}
-
-bool trace_init_backends(void)
-{
-#ifdef CONFIG_TRACE_SIMPLE
- if (!st_init()) {
- fprintf(stderr, "failed to initialize simple tracing backend.\n");
- return false;
- }
-#endif
-
-#ifdef CONFIG_TRACE_FTRACE
- if (!ftrace_init()) {
- fprintf(stderr, "failed to initialize ftrace backend.\n");
- return false;
- }
-#endif
-
- return true;
-}
diff --git a/qemu/trace/control.h b/qemu/trace/control.h
deleted file mode 100644
index e2ba6d4de..000000000
--- a/qemu/trace/control.h
+++ /dev/null
@@ -1,203 +0,0 @@
-/*
- * Interface for configuring and controlling the state of tracing events.
- *
- * Copyright (C) 2011-2016 Lluís Vilanova <vilanova@ac.upc.edu>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#ifndef TRACE__CONTROL_H
-#define TRACE__CONTROL_H
-
-#include "qemu-common.h"
-#include "trace/generated-events.h"
-
-
-/**
- * TraceEventID:
- *
- * Unique tracing event identifier.
- *
- * These are named as 'TRACE_${EVENT_NAME}'.
- *
- * See also: "trace/generated-events.h"
- */
-enum TraceEventID;
-
-/**
- * trace_event_id:
- * @id: Event identifier.
- *
- * Get an event by its identifier.
- *
- * This routine has a constant cost, as opposed to trace_event_name and
- * trace_event_pattern.
- *
- * Pre-conditions: The identifier is valid.
- *
- * Returns: pointer to #TraceEvent.
- *
- */
-static TraceEvent *trace_event_id(TraceEventID id);
-
-/**
- * trace_event_name:
- * @id: Event name.
- *
- * Search an event by its name.
- *
- * Returns: pointer to #TraceEvent or NULL if not found.
- */
-TraceEvent *trace_event_name(const char *name);
-
-/**
- * trace_event_pattern:
- * @pat: Event name pattern.
- * @ev: Event to start searching from (not included).
- *
- * Get all events with a given name pattern.
- *
- * Returns: pointer to #TraceEvent or NULL if not found.
- */
-TraceEvent *trace_event_pattern(const char *pat, TraceEvent *ev);
-
-/**
- * trace_event_is_pattern:
- *
- * Whether the given string is an event name pattern.
- */
-static bool trace_event_is_pattern(const char *str);
-
-/**
- * trace_event_count:
- *
- * Return the number of events.
- */
-static TraceEventID trace_event_count(void);
-
-
-
-/**
- * trace_event_get_id:
- *
- * Get the identifier of an event.
- */
-static TraceEventID trace_event_get_id(TraceEvent *ev);
-
-/**
- * trace_event_get_name:
- *
- * Get the name of an event.
- */
-static const char * trace_event_get_name(TraceEvent *ev);
-
-/**
- * trace_event_get_state:
- * @id: Event identifier.
- *
- * Get the tracing state of an event (both static and dynamic).
- *
- * If the event has the disabled property, the check will have no performance
- * impact.
- *
- * As a down side, you must always use an immediate #TraceEventID value.
- */
-#define trace_event_get_state(id) \
- ((id ##_ENABLED) && trace_event_get_state_dynamic_by_id(id))
-
-/**
- * trace_event_get_state_static:
- * @id: Event identifier.
- *
- * Get the static tracing state of an event.
- *
- * Use the define 'TRACE_${EVENT_NAME}_ENABLED' for compile-time checks (it will
- * be set to 1 or 0 according to the presence of the disabled property).
- */
-static bool trace_event_get_state_static(TraceEvent *ev);
-
-/**
- * trace_event_get_state_dynamic:
- *
- * Get the dynamic tracing state of an event.
- */
-static bool trace_event_get_state_dynamic(TraceEvent *ev);
-
-/**
- * trace_event_set_state:
- *
- * Set the tracing state of an event (only if possible).
- */
-#define trace_event_set_state(id, state) \
- do { \
- if ((id ##_ENABLED)) { \
- TraceEvent *_e = trace_event_id(id); \
- trace_event_set_state_dynamic(_e, state); \
- } \
- } while (0)
-
-/**
- * trace_event_set_state_dynamic:
- *
- * Set the dynamic tracing state of an event.
- *
- * Pre-condition: trace_event_get_state_static(ev) == true
- */
-static void trace_event_set_state_dynamic(TraceEvent *ev, bool state);
-
-
-
-/**
- * trace_init_backends:
- * @file: Name of trace output file; may be NULL.
- * Corresponds to commandline option "-trace file=...".
- *
- * Initialize the tracing backend.
- *
- * Returns: Whether the backends could be successfully initialized.
- */
-bool trace_init_backends(void);
-
-/**
- * trace_init_events:
- * @events: Name of file with events to be enabled at startup; may be NULL.
- * Corresponds to commandline option "-trace events=...".
- *
- * Read the list of enabled tracing events.
- *
- * Returns: Whether the backends could be successfully initialized.
- */
-void trace_init_events(const char *file);
-
-/**
- * trace_init_file:
- * @file: Name of trace output file; may be NULL.
- * Corresponds to commandline option "-trace file=...".
- *
- * Record the name of the output file for the tracing backend.
- * Exits if no selected backend does not support specifying the
- * output file, and a non-NULL file was passed.
- */
-void trace_init_file(const char *file);
-
-/**
- * trace_list_events:
- *
- * List all available events.
- */
-void trace_list_events(void);
-
-/**
- * trace_enable_events:
- * @line_buf: A string with a glob pattern of events to be enabled or,
- * if the string starts with '-', disabled.
- *
- * Enable or disable matching events.
- */
-void trace_enable_events(const char *line_buf);
-
-
-#include "trace/control-internal.h"
-
-#endif /* TRACE__CONTROL_H */
diff --git a/qemu/trace/event-internal.h b/qemu/trace/event-internal.h
deleted file mode 100644
index 86f6a511b..000000000
--- a/qemu/trace/event-internal.h
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Interface for configuring and controlling the state of tracing events.
- *
- * Copyright (C) 2012 Lluís Vilanova <vilanova@ac.upc.edu>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#ifndef TRACE__EVENT_INTERNAL_H
-#define TRACE__EVENT_INTERNAL_H
-
-#include "trace/generated-events.h"
-
-
-/**
- * TraceEvent:
- * @id: Unique event identifier.
- * @name: Event name.
- * @sstate: Static tracing state.
- *
- * Opaque generic description of a tracing event.
- */
-typedef struct TraceEvent {
- TraceEventID id;
- const char * name;
- const bool sstate;
-} TraceEvent;
-
-
-#endif /* TRACE__EVENT_INTERNAL_H */
diff --git a/qemu/trace/ftrace.c b/qemu/trace/ftrace.c
deleted file mode 100644
index e953922f5..000000000
--- a/qemu/trace/ftrace.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Ftrace trace backend
- *
- * Copyright (C) 2013 Hitachi, Ltd.
- * Created by Eiichi Tsukata <eiichi.tsukata.xh@hitachi.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "trace.h"
-#include "trace/control.h"
-
-int trace_marker_fd;
-
-static int find_debugfs(char *debugfs)
-{
- char type[100];
- FILE *fp;
-
- fp = fopen("/proc/mounts", "r");
- if (fp == NULL) {
- return 0;
- }
-
- while (fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
- debugfs, type) == 2) {
- if (strcmp(type, "debugfs") == 0) {
- break;
- }
- }
- fclose(fp);
-
- if (strcmp(type, "debugfs") != 0) {
- return 0;
- }
- return 1;
-}
-
-bool ftrace_init(void)
-{
- char debugfs[PATH_MAX];
- char path[PATH_MAX];
- int debugfs_found;
- int trace_fd = -1;
-
- debugfs_found = find_debugfs(debugfs);
- if (debugfs_found) {
- snprintf(path, PATH_MAX, "%s/tracing/tracing_on", debugfs);
- trace_fd = open(path, O_WRONLY);
- if (trace_fd < 0) {
- perror("Could not open ftrace 'tracing_on' file");
- return false;
- } else {
- if (write(trace_fd, "1", 1) < 0) {
- perror("Could not write to 'tracing_on' file");
- close(trace_fd);
- return false;
- }
- close(trace_fd);
- }
- snprintf(path, PATH_MAX, "%s/tracing/trace_marker", debugfs);
- trace_marker_fd = open(path, O_WRONLY);
- if (trace_marker_fd < 0) {
- perror("Could not open ftrace 'trace_marker' file");
- return false;
- }
- } else {
- fprintf(stderr, "debugfs is not mounted\n");
- return false;
- }
-
- return true;
-}
diff --git a/qemu/trace/ftrace.h b/qemu/trace/ftrace.h
deleted file mode 100644
index 92372e3ca..000000000
--- a/qemu/trace/ftrace.h
+++ /dev/null
@@ -1,14 +0,0 @@
-#ifndef TRACE_FTRACE_H
-#define TRACE_FTRACE_H
-
-
-
-#define MAX_TRACE_STRLEN 512
-#define _STR(x) #x
-#define STR(x) _STR(x)
-
-extern int trace_marker_fd;
-
-bool ftrace_init(void);
-
-#endif /* ! TRACE_FTRACE_H */
diff --git a/qemu/trace/qmp.c b/qemu/trace/qmp.c
deleted file mode 100644
index 8aa2660aa..000000000
--- a/qemu/trace/qmp.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/*
- * QMP commands for tracing events.
- *
- * Copyright (C) 2014 Lluís Vilanova <vilanova@ac.upc.edu>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or later.
- * See the COPYING file in the top-level directory.
- */
-
-#include "qemu/osdep.h"
-#include "qmp-commands.h"
-#include "trace/control.h"
-
-
-TraceEventInfoList *qmp_trace_event_get_state(const char *name, Error **errp)
-{
- TraceEventInfoList *events = NULL;
- bool found = false;
- TraceEvent *ev;
-
- ev = NULL;
- while ((ev = trace_event_pattern(name, ev)) != NULL) {
- TraceEventInfoList *elem = g_new(TraceEventInfoList, 1);
- elem->value = g_new(TraceEventInfo, 1);
- elem->value->name = g_strdup(trace_event_get_name(ev));
- if (!trace_event_get_state_static(ev)) {
- elem->value->state = TRACE_EVENT_STATE_UNAVAILABLE;
- } else if (!trace_event_get_state_dynamic(ev)) {
- elem->value->state = TRACE_EVENT_STATE_DISABLED;
- } else {
- elem->value->state = TRACE_EVENT_STATE_ENABLED;
- }
- elem->next = events;
- events = elem;
- found = true;
- }
-
- if (!found && !trace_event_is_pattern(name)) {
- error_setg(errp, "unknown event \"%s\"", name);
- }
-
- return events;
-}
-
-void qmp_trace_event_set_state(const char *name, bool enable,
- bool has_ignore_unavailable,
- bool ignore_unavailable, Error **errp)
-{
- bool found = false;
- TraceEvent *ev;
-
- /* Check all selected events are dynamic */
- ev = NULL;
- while ((ev = trace_event_pattern(name, ev)) != NULL) {
- found = true;
- if (!(has_ignore_unavailable && ignore_unavailable) &&
- !trace_event_get_state_static(ev)) {
- error_setg(errp, "cannot set dynamic tracing state for \"%s\"",
- trace_event_get_name(ev));
- return;
- }
- }
- if (!found && !trace_event_is_pattern(name)) {
- error_setg(errp, "unknown event \"%s\"", name);
- return;
- }
-
- /* Apply changes */
- ev = NULL;
- while ((ev = trace_event_pattern(name, ev)) != NULL) {
- if (trace_event_get_state_static(ev)) {
- trace_event_set_state_dynamic(ev, enable);
- }
- }
-}
diff --git a/qemu/trace/simple.c b/qemu/trace/simple.c
deleted file mode 100644
index 3fdcc8226..000000000
--- a/qemu/trace/simple.c
+++ /dev/null
@@ -1,386 +0,0 @@
-/*
- * Simple trace backend
- *
- * Copyright IBM, Corp. 2010
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#ifndef _WIN32
-#include <pthread.h>
-#endif
-#include "qemu/timer.h"
-#include "trace.h"
-#include "trace/control.h"
-#include "trace/simple.h"
-
-/** Trace file header event ID */
-#define HEADER_EVENT_ID (~(uint64_t)0) /* avoids conflicting with TraceEventIDs */
-
-/** Trace file magic number */
-#define HEADER_MAGIC 0xf2b177cb0aa429b4ULL
-
-/** Trace file version number, bump if format changes */
-#define HEADER_VERSION 3
-
-/** Records were dropped event ID */
-#define DROPPED_EVENT_ID (~(uint64_t)0 - 1)
-
-/** Trace record is valid */
-#define TRACE_RECORD_VALID ((uint64_t)1 << 63)
-
-/*
- * Trace records are written out by a dedicated thread. The thread waits for
- * records to become available, writes them out, and then waits again.
- */
-static CompatGMutex trace_lock;
-static CompatGCond trace_available_cond;
-static CompatGCond trace_empty_cond;
-
-static bool trace_available;
-static bool trace_writeout_enabled;
-
-enum {
- TRACE_BUF_LEN = 4096 * 64,
- TRACE_BUF_FLUSH_THRESHOLD = TRACE_BUF_LEN / 4,
-};
-
-uint8_t trace_buf[TRACE_BUF_LEN];
-static volatile gint trace_idx;
-static unsigned int writeout_idx;
-static volatile gint dropped_events;
-static uint32_t trace_pid;
-static FILE *trace_fp;
-static char *trace_file_name;
-
-/* * Trace buffer entry */
-typedef struct {
- uint64_t event; /* TraceEventID */
- uint64_t timestamp_ns;
- uint32_t length; /* in bytes */
- uint32_t pid;
- uint64_t arguments[];
-} TraceRecord;
-
-typedef struct {
- uint64_t header_event_id; /* HEADER_EVENT_ID */
- uint64_t header_magic; /* HEADER_MAGIC */
- uint64_t header_version; /* HEADER_VERSION */
-} TraceLogHeader;
-
-
-static void read_from_buffer(unsigned int idx, void *dataptr, size_t size);
-static unsigned int write_to_buffer(unsigned int idx, void *dataptr, size_t size);
-
-static void clear_buffer_range(unsigned int idx, size_t len)
-{
- uint32_t num = 0;
- while (num < len) {
- if (idx >= TRACE_BUF_LEN) {
- idx = idx % TRACE_BUF_LEN;
- }
- trace_buf[idx++] = 0;
- num++;
- }
-}
-/**
- * Read a trace record from the trace buffer
- *
- * @idx Trace buffer index
- * @record Trace record to fill
- *
- * Returns false if the record is not valid.
- */
-static bool get_trace_record(unsigned int idx, TraceRecord **recordptr)
-{
- uint64_t event_flag = 0;
- TraceRecord record;
- /* read the event flag to see if its a valid record */
- read_from_buffer(idx, &record, sizeof(event_flag));
-
- if (!(record.event & TRACE_RECORD_VALID)) {
- return false;
- }
-
- smp_rmb(); /* read memory barrier before accessing record */
- /* read the record header to know record length */
- read_from_buffer(idx, &record, sizeof(TraceRecord));
- *recordptr = malloc(record.length); /* dont use g_malloc, can deadlock when traced */
- /* make a copy of record to avoid being overwritten */
- read_from_buffer(idx, *recordptr, record.length);
- smp_rmb(); /* memory barrier before clearing valid flag */
- (*recordptr)->event &= ~TRACE_RECORD_VALID;
- /* clear the trace buffer range for consumed record otherwise any byte
- * with its MSB set may be considered as a valid event id when the writer
- * thread crosses this range of buffer again.
- */
- clear_buffer_range(idx, record.length);
- return true;
-}
-
-/**
- * Kick writeout thread
- *
- * @wait Whether to wait for writeout thread to complete
- */
-static void flush_trace_file(bool wait)
-{
- g_mutex_lock(&trace_lock);
- trace_available = true;
- g_cond_signal(&trace_available_cond);
-
- if (wait) {
- g_cond_wait(&trace_empty_cond, &trace_lock);
- }
-
- g_mutex_unlock(&trace_lock);
-}
-
-static void wait_for_trace_records_available(void)
-{
- g_mutex_lock(&trace_lock);
- while (!(trace_available && trace_writeout_enabled)) {
- g_cond_signal(&trace_empty_cond);
- g_cond_wait(&trace_available_cond, &trace_lock);
- }
- trace_available = false;
- g_mutex_unlock(&trace_lock);
-}
-
-static gpointer writeout_thread(gpointer opaque)
-{
- TraceRecord *recordptr;
- union {
- TraceRecord rec;
- uint8_t bytes[sizeof(TraceRecord) + sizeof(uint64_t)];
- } dropped;
- unsigned int idx = 0;
- int dropped_count;
- size_t unused __attribute__ ((unused));
-
- for (;;) {
- wait_for_trace_records_available();
-
- if (g_atomic_int_get(&dropped_events)) {
- dropped.rec.event = DROPPED_EVENT_ID,
- dropped.rec.timestamp_ns = get_clock();
- dropped.rec.length = sizeof(TraceRecord) + sizeof(uint64_t),
- dropped.rec.pid = trace_pid;
- do {
- dropped_count = g_atomic_int_get(&dropped_events);
- } while (!g_atomic_int_compare_and_exchange(&dropped_events,
- dropped_count, 0));
- dropped.rec.arguments[0] = dropped_count;
- unused = fwrite(&dropped.rec, dropped.rec.length, 1, trace_fp);
- }
-
- while (get_trace_record(idx, &recordptr)) {
- unused = fwrite(recordptr, recordptr->length, 1, trace_fp);
- writeout_idx += recordptr->length;
- free(recordptr); /* dont use g_free, can deadlock when traced */
- idx = writeout_idx % TRACE_BUF_LEN;
- }
-
- fflush(trace_fp);
- }
- return NULL;
-}
-
-void trace_record_write_u64(TraceBufferRecord *rec, uint64_t val)
-{
- rec->rec_off = write_to_buffer(rec->rec_off, &val, sizeof(uint64_t));
-}
-
-void trace_record_write_str(TraceBufferRecord *rec, const char *s, uint32_t slen)
-{
- /* Write string length first */
- rec->rec_off = write_to_buffer(rec->rec_off, &slen, sizeof(slen));
- /* Write actual string now */
- rec->rec_off = write_to_buffer(rec->rec_off, (void*)s, slen);
-}
-
-int trace_record_start(TraceBufferRecord *rec, TraceEventID event, size_t datasize)
-{
- unsigned int idx, rec_off, old_idx, new_idx;
- uint32_t rec_len = sizeof(TraceRecord) + datasize;
- uint64_t event_u64 = event;
- uint64_t timestamp_ns = get_clock();
-
- do {
- old_idx = g_atomic_int_get(&trace_idx);
- smp_rmb();
- new_idx = old_idx + rec_len;
-
- if (new_idx - writeout_idx > TRACE_BUF_LEN) {
- /* Trace Buffer Full, Event dropped ! */
- g_atomic_int_inc(&dropped_events);
- return -ENOSPC;
- }
- } while (!g_atomic_int_compare_and_exchange(&trace_idx, old_idx, new_idx));
-
- idx = old_idx % TRACE_BUF_LEN;
-
- rec_off = idx;
- rec_off = write_to_buffer(rec_off, &event_u64, sizeof(event_u64));
- rec_off = write_to_buffer(rec_off, &timestamp_ns, sizeof(timestamp_ns));
- rec_off = write_to_buffer(rec_off, &rec_len, sizeof(rec_len));
- rec_off = write_to_buffer(rec_off, &trace_pid, sizeof(trace_pid));
-
- rec->tbuf_idx = idx;
- rec->rec_off = (idx + sizeof(TraceRecord)) % TRACE_BUF_LEN;
- return 0;
-}
-
-static void read_from_buffer(unsigned int idx, void *dataptr, size_t size)
-{
- uint8_t *data_ptr = dataptr;
- uint32_t x = 0;
- while (x < size) {
- if (idx >= TRACE_BUF_LEN) {
- idx = idx % TRACE_BUF_LEN;
- }
- data_ptr[x++] = trace_buf[idx++];
- }
-}
-
-static unsigned int write_to_buffer(unsigned int idx, void *dataptr, size_t size)
-{
- uint8_t *data_ptr = dataptr;
- uint32_t x = 0;
- while (x < size) {
- if (idx >= TRACE_BUF_LEN) {
- idx = idx % TRACE_BUF_LEN;
- }
- trace_buf[idx++] = data_ptr[x++];
- }
- return idx; /* most callers wants to know where to write next */
-}
-
-void trace_record_finish(TraceBufferRecord *rec)
-{
- TraceRecord record;
- read_from_buffer(rec->tbuf_idx, &record, sizeof(TraceRecord));
- smp_wmb(); /* write barrier before marking as valid */
- record.event |= TRACE_RECORD_VALID;
- write_to_buffer(rec->tbuf_idx, &record, sizeof(TraceRecord));
-
- if (((unsigned int)g_atomic_int_get(&trace_idx) - writeout_idx)
- > TRACE_BUF_FLUSH_THRESHOLD) {
- flush_trace_file(false);
- }
-}
-
-void st_set_trace_file_enabled(bool enable)
-{
- if (enable == !!trace_fp) {
- return; /* no change */
- }
-
- /* Halt trace writeout */
- flush_trace_file(true);
- trace_writeout_enabled = false;
- flush_trace_file(true);
-
- if (enable) {
- static const TraceLogHeader header = {
- .header_event_id = HEADER_EVENT_ID,
- .header_magic = HEADER_MAGIC,
- /* Older log readers will check for version at next location */
- .header_version = HEADER_VERSION,
- };
-
- trace_fp = fopen(trace_file_name, "wb");
- if (!trace_fp) {
- return;
- }
-
- if (fwrite(&header, sizeof header, 1, trace_fp) != 1) {
- fclose(trace_fp);
- trace_fp = NULL;
- return;
- }
-
- /* Resume trace writeout */
- trace_writeout_enabled = true;
- flush_trace_file(false);
- } else {
- fclose(trace_fp);
- trace_fp = NULL;
- }
-}
-
-/**
- * Set the name of a trace file
- *
- * @file The trace file name or NULL for the default name-<pid> set at
- * config time
- */
-void st_set_trace_file(const char *file)
-{
- st_set_trace_file_enabled(false);
-
- g_free(trace_file_name);
-
- if (!file) {
- /* Type cast needed for Windows where getpid() returns an int. */
- trace_file_name = g_strdup_printf(CONFIG_TRACE_FILE, (pid_t)getpid());
- } else {
- trace_file_name = g_strdup_printf("%s", file);
- }
-
- st_set_trace_file_enabled(true);
-}
-
-void st_print_trace_file_status(FILE *stream, int (*stream_printf)(FILE *stream, const char *fmt, ...))
-{
- stream_printf(stream, "Trace file \"%s\" %s.\n",
- trace_file_name, trace_fp ? "on" : "off");
-}
-
-void st_flush_trace_buffer(void)
-{
- flush_trace_file(true);
-}
-
-/* Helper function to create a thread with signals blocked. Use glib's
- * portable threads since QEMU abstractions cannot be used due to reentrancy in
- * the tracer. Also note the signal masking on POSIX hosts so that the thread
- * does not steal signals when the rest of the program wants them blocked.
- */
-static GThread *trace_thread_create(GThreadFunc fn)
-{
- GThread *thread;
-#ifndef _WIN32
- sigset_t set, oldset;
-
- sigfillset(&set);
- pthread_sigmask(SIG_SETMASK, &set, &oldset);
-#endif
-
- thread = g_thread_new("trace-thread", fn, NULL);
-
-#ifndef _WIN32
- pthread_sigmask(SIG_SETMASK, &oldset, NULL);
-#endif
-
- return thread;
-}
-
-bool st_init(void)
-{
- GThread *thread;
-
- trace_pid = getpid();
-
- thread = trace_thread_create(writeout_thread);
- if (!thread) {
- fprintf(stderr, "warning: unable to initialize simple trace backend\n");
- return false;
- }
-
- atexit(st_flush_trace_buffer);
- return true;
-}
diff --git a/qemu/trace/simple.h b/qemu/trace/simple.h
deleted file mode 100644
index 1e7de4557..000000000
--- a/qemu/trace/simple.h
+++ /dev/null
@@ -1,55 +0,0 @@
-/*
- * Simple trace backend
- *
- * Copyright IBM, Corp. 2010
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
- */
-
-#ifndef TRACE_SIMPLE_H
-#define TRACE_SIMPLE_H
-
-
-#include "trace/generated-events.h"
-
-
-void st_print_trace_file_status(FILE *stream, fprintf_function stream_printf);
-void st_set_trace_file_enabled(bool enable);
-void st_set_trace_file(const char *file);
-bool st_init(void);
-void st_flush_trace_buffer(void);
-
-typedef struct {
- unsigned int tbuf_idx;
- unsigned int rec_off;
-} TraceBufferRecord;
-
-/* Note for hackers: Make sure MAX_TRACE_LEN < sizeof(uint32_t) */
-#define MAX_TRACE_STRLEN 512
-/**
- * Initialize a trace record and claim space for it in the buffer
- *
- * @arglen number of bytes required for arguments
- */
-int trace_record_start(TraceBufferRecord *rec, TraceEventID id, size_t arglen);
-
-/**
- * Append a 64-bit argument to a trace record
- */
-void trace_record_write_u64(TraceBufferRecord *rec, uint64_t val);
-
-/**
- * Append a string argument to a trace record
- */
-void trace_record_write_str(TraceBufferRecord *rec, const char *s, uint32_t slen);
-
-/**
- * Mark a trace record completed
- *
- * Don't append any more arguments to the trace record after calling this.
- */
-void trace_record_finish(TraceBufferRecord *rec);
-
-#endif /* TRACE_SIMPLE_H */