/*
 *  This code maintains a list of active profiling data structures.
 *
 *    Copyright IBM Corp. 2009
 *    Author(s): Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
 *
 *    Uses gcc-internal data definitions.
 *    Based on the gcov-kernel patch by:
 *		 Hubertus Franke <frankeh@us.ibm.com>
 *		 Nigel Hinds <nhinds@us.ibm.com>
 *		 Rajan Ravindran <rajancr@us.ibm.com>
 *		 Peter Oberparleiter <oberpar@linux.vnet.ibm.com>
 *		 Paul Larson
 */

#define pr_fmt(fmt)	"gcov: " fmt

#include <linux/init.h>
#include <linux/module.h>
#include <linux/mutex.h>
#include <linux/sched.h>
#include "gcov.h"

static int gcov_events_enabled;
static DEFINE_MUTEX(gcov_lock);

/*
 * __gcov_init is called by gcc-generated constructor code for each object
 * file compiled with -fprofile-arcs.
 */
void __gcov_init(struct gcov_info *info)
{
	static unsigned int gcov_version;

	mutex_lock(&gcov_lock);
	if (gcov_version == 0) {
		gcov_version = gcov_info_version(info);
		/*
		 * Printing gcc's version magic may prove useful for debugging
		 * incompatibility reports.
		 */
		pr_info("version magic: 0x%x\n", gcov_version);
	}
	/*
	 * Add new profiling data structure to list and inform event
	 * listener.
	 */
	gcov_info_link(info);
	if (gcov_events_enabled)
		gcov_event(GCOV_ADD, info);
	mutex_unlock(&gcov_lock);
}
EXPORT_SYMBOL(__gcov_init);

/*
 * These functions may be referenced by gcc-generated profiling code but serve
 * no function for kernel profiling.
 */
void __gcov_flush(void)
{
	/* Unused. */
}
EXPORT_SYMBOL(__gcov_flush);

void __gcov_merge_add(gcov_type *counters, unsigned int n_counters)
{
	/* Unused. */
}
EXPORT_SYMBOL(__gcov_merge_add);

void __gcov_merge_single(gcov_type *counters, unsigned int n_counters)
{
	/* Unused. */
}
EXPORT_SYMBOL(__gcov_merge_single);

void __gcov_merge_delta(gcov_type *counters, unsigned int n_counters)
{
	/* Unused. */
}
EXPORT_SYMBOL(__gcov_merge_delta);

void __gcov_merge_ior(gcov_type *counters, unsigned int n_counters)
{
	/* Unused. */
}
EXPORT_SYMBOL(__gcov_merge_ior);

void __gcov_merge_time_profile(gcov_type *counters, unsigned int n_counters)
{
	/* Unused. */
}
EXPORT_SYMBOL(__gcov_merge_time_profile);

void __gcov_merge_icall_topn(gcov_type *counters, unsigned int n_counters)
{
	/* Unused. */
}
EXPORT_SYMBOL(__gcov_merge_icall_topn);

/**
 * gcov_enable_events - enable event reporting through gcov_event()
 *
 * Turn on reporting of profiling data load/unload-events through the
 * gcov_event() callback. Also replay all previous events once. This function
 * is needed because some events are potentially generated too early for the
 * callback implementation to handle them initially.
 */
void gcov_enable_events(void)
{
	struct gcov_info *info = NULL;

	mutex_lock(&gcov_lock);
	gcov_events_enabled = 1;

	/* Perform event callback for previously registered entries. */
	while ((info = gcov_info_next(info))) {
		gcov_event(GCOV_ADD, info);
		cond_resched();
	}

	mutex_unlock(&gcov_lock);
}

#ifdef CONFIG_MODULES
/* Update list and generate events when modules are unloaded. */
static int gcov_module_notifier(struct notifier_block *nb, unsigned long event,
				void *data)
{
	struct module *mod = data;
	struct gcov_info *info = NULL;
	struct gcov_info *prev = NULL;

	if (event != MODULE_STATE_GOING)
		return NOTIFY_OK;
	mutex_lock(&gcov_lock);

	/* Remove entries located in module from linked list. */
	while ((info = gcov_info_next(info))) {
		if (within_module((unsigned long)info, mod)) {
			gcov_info_unlink(prev, info);
			if (gcov_events_enabled)
				gcov_event(GCOV_REMOVE, info);
		} else
			prev = info;
	}

	mutex_unlock(&gcov_lock);

	return NOTIFY_OK;
}

static struct notifier_block gcov_nb = {
	.notifier_call	= gcov_module_notifier,
};

static int __init gcov_init(void)
{
	return register_module_notifier(&gcov_nb);
}
device_initcall(gcov_init);
#endif /* CONFIG_MODULES */
><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-01 09:22:08 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-02-01 09:22:08 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/renesas_usbhs/Makefile?id=35609502ac5dea2b149ec0368791d9c0e246bd65'>35609502ac5dea2b149ec0368791d9c0e246bd65</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers/usb/renesas_usbhs/Makefile?id=35609502ac5dea2b149ec0368791d9c0e246bd65'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=35609502ac5dea2b149ec0368791d9c0e246bd65'>6819f6bc5b8c3585b7a19cc0d8d25d703a1bc57c</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers/usb/renesas_usbhs/Makefile?id=35609502ac5dea2b149ec0368791d9c0e246bd65'>drivers/usb/renesas_usbhs/Makefile</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/renesas_usbhs/Makefile?id=c325b3533730016ca5cdaf902d62550b4243fe43'>c325b3533730016ca5cdaf902d62550b4243fe43</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/renesas_usbhs/Makefile?id=35609502ac5dea2b149ec0368791d9c0e246bd65&amp;id2=c325b3533730016ca5cdaf902d62550b4243fe43'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers/usb/renesas_usbhs/Makefile?id=91539eb1fda2d530d3b268eef542c5414e54bf1a'>91539eb1fda2d530d3b268eef542c5414e54bf1a</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers/usb/renesas_usbhs/Makefile?id=35609502ac5dea2b149ec0368791d9c0e246bd65&amp;id2=91539eb1fda2d530d3b268eef542c5414e54bf1a'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge tag 'dmaengine-fix-4.10-rc7' of git://git.infradead.org/users/vkoul/slave-dma</div><div class='commit-msg'>Pull dmaengine fixes from Vinod Koul:
 "A couple of fixes showed up late in the cycle so sending them up and
  sending early in the week and not on Friday :).

  They fix a double lock in pl330 driver and runtime pm fixes for cppi
  driver"

* tag 'dmaengine-fix-4.10-rc7' of git://git.infradead.org/users/vkoul/slave-dma:
  dmaengine: pl330: fix double lock
  dmaengine: cppi41: Clean up pointless warnings
  dmaengine: cppi41: Fix oops in cppi41_runtime_resume
  dmaengine: cppi41: Fix runtime PM timeouts with USB mass storage
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=35609502ac5dea2b149ec0368791d9c0e246bd65'>Diffstat</a> (limited to 'drivers/usb/renesas_usbhs/Makefile')</div><table summary='diffstat' class='diffstat'>