From 95b10ac74e7a996b9b1ce7ce88c205e39b67502b Mon Sep 17 00:00:00 2001
From: William Wilgus <wilgus.william@gmail.com>
Date: Tue, 28 Sep 2021 23:42:33 -0400
Subject: [PATCH] Add ability to dump cpu boost log to disk, include thread
 names

0.) B 0 /rockbox/apps/main.c:405
1.) B 1 /rockbox/firmware/kernel/thread.c thread[dircache]:1508
2.) B 2 /rockbox/apps/tagcache.c:4772
3.) U 3 /rockbox/apps/tagcache.c:4793

add logic to show count after log rolls over
clean-up

Change-Id: Ibda0a56e5d8d89aa8b7649f4f9fa64eb1ff0e08f
---
 apps/debug_menu.c        | 48 +++++++++++++++++++++++++++++++++++++++-
 firmware/kernel/thread.c |  7 ++++++
 firmware/system.c        |  6 +++--
 3 files changed, 58 insertions(+), 3 deletions(-)

diff --git a/apps/debug_menu.c b/apps/debug_menu.c
index 800e485ce3..33970da581 100644
--- a/apps/debug_menu.c
+++ b/apps/debug_menu.c
@@ -2242,6 +2242,51 @@ static bool cpu_boost_log(void)
     lcd_setfont(FONT_UI);
     return false;
 }
+
+static bool cpu_boost_log_dump(void)
+{
+    int fd;
+#if CONFIG_RTC
+    struct tm *nowtm;
+    char fname[MAX_PATH];
+#endif
+
+    int count = cpu_boost_log_getcount();
+    char *str = cpu_boost_log_getlog_first();
+
+    splashf(HZ, "Boost Log File Dumped");
+
+    /* nothing to print ? */
+    if(count == 0)
+        return false;
+
+#if CONFIG_RTC
+    nowtm = get_time();
+    snprintf(fname, MAX_PATH, "%s/boostlog_%04d%02d%02d%02d%02d%02d.txt", ROCKBOX_DIR,
+             nowtm->tm_year + 1900, nowtm->tm_mon + 1, nowtm->tm_mday,
+             nowtm->tm_hour, nowtm->tm_min, nowtm->tm_sec);
+    fd = open(fname, O_CREAT|O_WRONLY|O_TRUNC);
+#else
+    fd = open(ROCKBOX_DIR "/boostlog.txt", O_CREAT|O_WRONLY|O_TRUNC, 0666);
+#endif
+    if(-1 != fd) {
+        for (int i = 0; i < count; i++)
+        {
+            if (!str)
+                str = cpu_boost_log_getlog_next();
+            if (str)
+            {
+               fdprintf(fd, "%s\n", str);
+               str = NULL;
+            }
+        }
+
+        close(fd);
+        return true;
+    }
+
+    return false;
+}
 #endif
 
 #if (defined(HAVE_WHEEL_ACCELERATION) && (CONFIG_KEYPAD==IPOD_4G_PAD) \
@@ -2604,7 +2649,8 @@ static const struct {
 #endif
 #endif /* HAVE_USBSTACK */
 #ifdef CPU_BOOST_LOGGING
-        {"cpu_boost log",cpu_boost_log},
+        {"Show cpu_boost log",cpu_boost_log},
+        {"Dump cpu_boost log",cpu_boost_log_dump},
 #endif
 #if (defined(HAVE_WHEEL_ACCELERATION) && (CONFIG_KEYPAD==IPOD_4G_PAD) \
      && !defined(IPOD_MINI) && !defined(SIMULATOR))
diff --git a/firmware/kernel/thread.c b/firmware/kernel/thread.c
index 307be7116a..a422624df7 100644
--- a/firmware/kernel/thread.c
+++ b/firmware/kernel/thread.c
@@ -1501,7 +1501,14 @@ static inline void boost_thread(struct thread_entry *thread, bool boost)
     if ((thread->cpu_boost != 0) != boost)
     {
         thread->cpu_boost = boost;
+#ifdef CPU_BOOST_LOGGING
+        const char fmt[] = __FILE__" thread[%s]";
+        char pathbuf[sizeof(fmt) + 32]; /* thread name 32 */
+        snprintf(pathbuf, sizeof(pathbuf), fmt, thread->name);
+        cpu_boost_(boost, pathbuf,  __LINE__);
+#else
         cpu_boost(boost);
+#endif
     }
 }
 
diff --git a/firmware/system.c b/firmware/system.c
index 537e901b05..e2fdff0e59 100644
--- a/firmware/system.c
+++ b/firmware/system.c
@@ -89,6 +89,7 @@ char * cpu_boost_log_getlog_next(void)
 
 void cpu_boost_(bool on_off, char* location, int line)
 {
+    int item = cpu_boost_calls_count;
     if (!cpu_boost_lock())
         return;
 
@@ -98,12 +99,13 @@ void cpu_boost_(bool on_off, char* location, int line)
         cpu_boost_calls_count--;
         if (cpu_boost_calls_count < 0)
             cpu_boost_calls_count = 0;
+        item += cpu_boost_first;
     }
     if (cpu_boost_calls_count < MAX_BOOST_LOG)
     {
         int message = (cpu_boost_first+cpu_boost_calls_count)%MAX_BOOST_LOG;
-        snprintf(cpu_boost_calls[message], MAX_PATH,
-                    "%c %s:%d",on_off?'B':'U',location,line);
+        snprintf(cpu_boost_calls[message], MAX_PATH,"%d.) %c %d %s:%d",
+                 item,on_off?'B':'U',boost_counter,location,line);
         cpu_boost_calls_count++;
     }
 #else