1 files changed, 185 insertions, 0 deletions
diff --git a/src/include/qemu/log.h b/src/include/qemu/log.h
new file mode 100644
index 0000000..362cbc4
--- /dev/null
+++ b/src/include/qemu/log.h
@@ -0,0 +1,185 @@
+#ifndef QEMU_LOG_H
+#define QEMU_LOG_H
+
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include "qemu/compiler.h"
+#include "qom/cpu.h"
+#ifdef NEED_CPU_H
+#include "disas/disas.h"
+#endif
+
+/* Private global variables, don't use */
+extern FILE *qemu_logfile;
+extern int qemu_loglevel;
+
+/* 
+ * The new API:
+ *
+ */
+
+/* Log settings checking macros: */
+
+/* Returns true if qemu_log() will really write somewhere
+ */
+static inline bool qemu_log_enabled(void)
+{
+    return qemu_logfile != NULL;
+}
+
+#define CPU_LOG_TB_OUT_ASM (1 << 0)
+#define CPU_LOG_TB_IN_ASM  (1 << 1)
+#define CPU_LOG_TB_OP      (1 << 2)
+#define CPU_LOG_TB_OP_OPT  (1 << 3)
+#define CPU_LOG_INT        (1 << 4)
+#define CPU_LOG_EXEC       (1 << 5)
+#define CPU_LOG_PCALL      (1 << 6)
+#define CPU_LOG_TB_CPU     (1 << 8)
+#define CPU_LOG_RESET      (1 << 9)
+#define LOG_UNIMP          (1 << 10)
+#define LOG_GUEST_ERROR    (1 << 11)
+#define CPU_LOG_MMU        (1 << 12)
+#define CPU_LOG_TB_NOCHAIN (1 << 13)
+
+/* Returns true if a bit is set in the current loglevel mask
+ */
+static inline bool qemu_loglevel_mask(int mask)
+{
+    return (qemu_loglevel & mask) != 0;
+}
+
+/* Logging functions: */
+
+/* main logging function
+ */
+void GCC_FMT_ATTR(1, 2) qemu_log(const char *fmt, ...);
+
+/* vfprintf-like logging function
+ */
+static inline void GCC_FMT_ATTR(1, 0)
+qemu_log_vprintf(const char *fmt, va_list va)
+{
+    if (qemu_logfile) {
+        vfprintf(qemu_logfile, fmt, va);
+    }
+}
+
+/* log only if a bit is set on the current loglevel mask
+ */
+void GCC_FMT_ATTR(2, 3) qemu_log_mask(int mask, const char *fmt, ...);
+
+
+/* Special cases: */
+
+/* cpu_dump_state() logging functions: */
+/**
+ * log_cpu_state:
+ * @cpu: The CPU whose state is to be logged.
+ * @flags: Flags what to log.
+ *
+ * Logs the output of cpu_dump_state().
+ */
+static inline void log_cpu_state(CPUState *cpu, int flags)
+{
+    if (qemu_log_enabled()) {
+        cpu_dump_state(cpu, qemu_logfile, fprintf, flags);
+    }
+}
+
+/**
+ * log_cpu_state_mask:
+ * @mask: Mask when to log.
+ * @cpu: The CPU whose state is to be logged.
+ * @flags: Flags what to log.
+ *
+ * Logs the output of cpu_dump_state() if loglevel includes @mask.
+ */
+static inline void log_cpu_state_mask(int mask, CPUState *cpu, int flags)
+{
+    if (qemu_loglevel & mask) {
+        log_cpu_state(cpu, flags);
+    }
+}
+
+#ifdef NEED_CPU_H
+/* disas() and target_disas() to qemu_logfile: */
+static inline void log_target_disas(CPUState *cpu, target_ulong start,
+                                    target_ulong len, int flags)
+{
+    target_disas(qemu_logfile, cpu, start, len, flags);
+}
+
+static inline void log_disas(void *code, unsigned long size)
+{
+    disas(qemu_logfile, code, size);
+}
+
+#if defined(CONFIG_USER_ONLY)
+/* page_dump() output to the log file: */
+static inline void log_page_dump(void)
+{
+    page_dump(qemu_logfile);
+}
+#endif
+#endif
+
+
+/* Maintenance: */
+
+/* fflush() the log file */
+static inline void qemu_log_flush(void)
+{
+    fflush(qemu_logfile);
+}
+
+/* Close the log file */
+static inline void qemu_log_close(void)
+{
+    if (qemu_logfile) {
+        if (qemu_logfile != stderr) {
+            fclose(qemu_logfile);
+        }
+        qemu_logfile = NULL;
+    }
+}
+
+/* Set up a new log file */
+static inline void qemu_log_set_file(FILE *f)
+{
+    qemu_logfile = f;
+}
+
+/* define log items */
+typedef struct QEMULogItem {
+    int mask;
+    const char *name;
+    const char *help;
+} QEMULogItem;
+
+extern const QEMULogItem qemu_log_items[];
+
+/* This is the function that actually does the work of
+ * changing the log level; it should only be accessed via
+ * the qemu_set_log() wrapper.
+ */
+void do_qemu_set_log(int log_flags, bool use_own_buffers);
+
+static inline void qemu_set_log(int log_flags)
+{
+#ifdef CONFIG_USER_ONLY
+    do_qemu_set_log(log_flags, true);
+#else
+    do_qemu_set_log(log_flags, false);
+#endif
+}
+
+void qemu_set_log_filename(const char *filename);
+int qemu_str_to_log_mask(const char *str);
+
+/* Print a usage message listing all the valid logging categories
+ * to the specified FILE*.
+ */
+void qemu_print_log_usage(FILE *f);
+
+#endif