/*
 * call-path.h: Manipulate a tree data structure containing function call paths
 * Copyright (c) 2014, Intel Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 */

#ifndef __PERF_CALL_PATH_H
#define __PERF_CALL_PATH_H

#include <sys/types.h>

#include <linux/types.h>
#include <linux/rbtree.h>

/**
 * struct call_path - node in list of calls leading to a function call.
 * @parent: call path to the parent function call
 * @sym: symbol of function called
 * @ip: only if sym is null, the ip of the function
 * @db_id: id used for db-export
 * @in_kernel: whether function is a in the kernel
 * @rb_node: node in parent's tree of called functions
 * @children: tree of call paths of functions called
 *
 * In combination with the call_return structure, the call_path structure
 * defines a context-sensitve call-graph.
 */
struct call_path {
	struct call_path *parent;
	struct symbol *sym;
	u64 ip;
	u64 db_id;
	bool in_kernel;
	struct rb_node rb_node;
	struct rb_root children;
};

#define CALL_PATH_BLOCK_SHIFT 8
#define CALL_PATH_BLOCK_SIZE (1 << CALL_PATH_BLOCK_SHIFT)
#define CALL_PATH_BLOCK_MASK (CALL_PATH_BLOCK_SIZE - 1)

struct call_path_block {
	struct call_path cp[CALL_PATH_BLOCK_SIZE];
	struct list_head node;
};

/**
 * struct call_path_root - root of all call paths.
 * @call_path: root call path
 * @blocks: list of blocks to store call paths
 * @next: next free space
 * @sz: number of spaces
 */
struct call_path_root {
	struct call_path call_path;
	struct list_head blocks;
	size_t next;
	size_t sz;
};

struct call_path_root *call_path_root__new(void);
void call_path_root__free(struct call_path_root *cpr);

struct call_path *call_path__findnew(struct call_path_root *cpr,
				     struct call_path *parent,
				     struct symbol *sym, u64 ip, u64 ks);

#endif
it/log/include/crypto/md5.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=30103b5b6432a51c3822a26dc340e35d91237f39'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include?id=30103b5b6432a51c3822a26dc340e35d91237f39'>include</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/crypto?id=30103b5b6432a51c3822a26dc340e35d91237f39'>crypto</a>/<a href='/cgit.cgi/linux/net-next.git/commit/include/crypto/md5.h?id=30103b5b6432a51c3822a26dc340e35d91237f39'>md5.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='30103b5b6432a51c3822a26dc340e35d91237f39'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><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>David Lechner &lt;david@lechnology.com&gt;</td><td class='right'>2016-12-04 16:52:31 -0600</td></tr>
<tr><th>committer</th><td>Mark Brown &lt;broonie@kernel.org&gt;</td><td class='right'>2016-12-05 11:38:30 +0000</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/crypto/md5.h?id=30103b5b6432a51c3822a26dc340e35d91237f39'>30103b5b6432a51c3822a26dc340e35d91237f39</a> (<a href='/cgit.cgi/linux/net-next.git/patch/include/crypto/md5.h?id=30103b5b6432a51c3822a26dc340e35d91237f39'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=30103b5b6432a51c3822a26dc340e35d91237f39'>0806755f1615c0bc8598558b4a845ab1cf9c8291</a> /<a href='/cgit.cgi/linux/net-next.git/tree/include/crypto/md5.h?id=30103b5b6432a51c3822a26dc340e35d91237f39'>include/crypto/md5.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/include/crypto/md5.h?id=1b5b42216469b05ef4b5916cb40b127dfab1da88'>1b5b42216469b05ef4b5916cb40b127dfab1da88</a> (<a href='/cgit.cgi/linux/net-next.git/diff/include/crypto/md5.h?id=30103b5b6432a51c3822a26dc340e35d91237f39&amp;id2=1b5b42216469b05ef4b5916cb40b127dfab1da88'>diff</a>)</td></tr></table>
<div class='commit-subject'>regulator: Fix regulator_get_error_flags() signature mismatch</div><div class='commit-msg'>The function signature of does not match regulator_get_error_flags()
when CONFIG_REGULATOR is not defined vs. when it is not defined.
This makes both declarations match to prevent compiler errors.

Signed-off-by: David Lechner &lt;david@lechnology.com&gt;
Signed-off-by: Mark Brown &lt;broonie@kernel.org&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=30103b5b6432a51c3822a26dc340e35d91237f39'>Diffstat</a> (limited to 'include/crypto/md5.h')</div><table summary='diffstat' class='diffstat'>