/*
 * Copyright (C) 2015, Wang Nan <wangnan0@huawei.com>
 * Copyright (C) 2015, Huawei Inc.
 */
#ifndef __LLVM_UTILS_H
#define __LLVM_UTILS_H

#include "debug.h"

struct llvm_param {
	/* Path of clang executable */
	const char *clang_path;
	/*
	 * Template of clang bpf compiling. 5 env variables
	 * can be used:
	 *   $CLANG_EXEC:		Path to clang.
	 *   $CLANG_OPTIONS:		Extra options to clang.
	 *   $KERNEL_INC_OPTIONS:	Kernel include directories.
	 *   $WORKING_DIR:		Kernel source directory.
	 *   $CLANG_SOURCE:		Source file to be compiled.
	 */
	const char *clang_bpf_cmd_template;
	/* Will be filled in $CLANG_OPTIONS */
	const char *clang_opt;
	/* Where to find kbuild system */
	const char *kbuild_dir;
	/*
	 * Arguments passed to make, like 'ARCH=arm' if doing cross
	 * compiling. Should not be used for dynamic compiling.
	 */
	const char *kbuild_opts;
	/*
	 * Default is false. If set to true, write compiling result
	 * to object file.
	 */
	bool dump_obj;
	/*
	 * Default is false. If one of the above fields is set by user
	 * explicitly then user_set_llvm is set to true. This is used
	 * for perf test. If user doesn't set anything in .perfconfig
	 * and clang is not found, don't trigger llvm test.
	 */
	bool user_set_param;
};

extern struct llvm_param llvm_param;
int perf_llvm_config(const char *var, const char *value);

int llvm__compile_bpf(const char *path, void **p_obj_buf, size_t *p_obj_buf_sz);

/* This function is for test__llvm() use only */
int llvm__search_clang(void);

/* Following functions are reused by builtin clang support */
void llvm__get_kbuild_opts(char **kbuild_dir, char **kbuild_include_opts);
int llvm__get_nr_cpus(void);

void llvm__dump_obj(const char *path, void *obj_buf, size_t size);
#endif
git/log/fs/xfs/xfs_extent_busy.h'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>tree</a><a class='active' href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/fs/xfs/xfs_extent_busy.h'>
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<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/commit/?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>fs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>xfs</a>/<a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>xfs_extent_busy.h</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='19ca2c8fecb1592d623fe5e82d6796f8d446268d'/><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>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 12:21:51 -0800</td></tr>
<tr><th>committer</th><td>Linus Torvalds &lt;torvalds@linux-foundation.org&gt;</td><td class='right'>2017-01-24 12:21:51 -0800</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>19ca2c8fecb1592d623fe5e82d6796f8d446268d</a> (<a href='/cgit.cgi/linux/net-next.git/patch/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>0756e115d125846f46b302085307768f069434a1</a> /<a href='/cgit.cgi/linux/net-next.git/tree/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>fs/xfs/xfs_extent_busy.h</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/xfs_extent_busy.h?id=a4685d2f58e2230d4e27fb2ee581d7ea35e5d046'>a4685d2f58e2230d4e27fb2ee581d7ea35e5d046</a> (<a href='/cgit.cgi/linux/net-next.git/diff/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d&amp;id2=a4685d2f58e2230d4e27fb2ee581d7ea35e5d046'>diff</a>)</td></tr><tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/fs/xfs/xfs_extent_busy.h?id=880a38547ff08715ce4f1daf9a4bb30c87676e68'>880a38547ff08715ce4f1daf9a4bb30c87676e68</a> (<a href='/cgit.cgi/linux/net-next.git/diff/fs/xfs/xfs_extent_busy.h?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d&amp;id2=880a38547ff08715ce4f1daf9a4bb30c87676e68'>diff</a>)</td></tr></table>
<div class='commit-subject'>Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace</div><div class='commit-msg'>Pull namespace fix from Eric Biederman:
 "This has a single brown bag fix.

  The possible deadlock with dec_pid_namespaces that I had thought was
  fixed earlier turned out only to have been moved. So instead of being
  cleaver this change takes ucounts_lock with irqs disabled. So
  dec_ucount can be used from any context without fear of deadlock.

  The items accounted for dec_ucount and inc_ucount are all
  comparatively heavy weight objects so I don't exepct this will have
  any measurable performance impact"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
  userns: Make ucounts lock irq-safe
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=19ca2c8fecb1592d623fe5e82d6796f8d446268d'>Diffstat</a> (limited to 'fs/xfs/xfs_extent_busy.h')</div><table summary='diffstat' class='diffstat'>