/* Copyright (c) 2016 Facebook
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of version 2 of the GNU General Public
 * License as published by the Free Software Foundation.
 */
#include <linux/version.h>
#include <linux/ptrace.h>
#include <uapi/linux/bpf.h>
#include "bpf_helpers.h"

#define _(P) ({typeof(P) val = 0; bpf_probe_read(&val, sizeof(val), &P); val;})

SEC("kprobe/__set_task_comm")
int prog(struct pt_regs *ctx)
{
	struct signal_struct *signal;
	struct task_struct *tsk;
	char oldcomm[16] = {};
	char newcomm[16] = {};
	u16 oom_score_adj;
	u32 pid;

	tsk = (void *)PT_REGS_PARM1(ctx);

	pid = _(tsk->pid);
	bpf_probe_read(oldcomm, sizeof(oldcomm), &tsk->comm);
	bpf_probe_read(newcomm, sizeof(newcomm), (void *)PT_REGS_PARM2(ctx));
	signal = _(tsk->signal);
	oom_score_adj = _(signal->oom_score_adj);
	return 0;
}

SEC("kprobe/urandom_read")
int prog2(struct pt_regs *ctx)
{
	return 0;
}

char _license[] SEC("license") = "GPL";
u32 _version SEC("version") = LINUX_VERSION_CODE;
ption>
<option value='master'>master</option>
<option value='nds-private-remove' selected='selected'>nds-private-remove</option>
<option value='packet-loop-back'>packet-loop-back</option>
<option value='packet-rx-pump-back'>packet-rx-pump-back</option>
</select> <input type='submit' value='switch'/></form></td></tr>
<tr><td class='sub'>net-next plumbings</td><td class='sub right'>Tobias Klauser</td></tr></table>
<table class='tabs'><tr><td>
<a href='/cgit.cgi/linux/net-next.git/?h=nds-private-remove'>summary</a><a href='/cgit.cgi/linux/net-next.git/refs/?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>refs</a><a class='active' href='/cgit.cgi/linux/net-next.git/log/include/sound/da7218.h?h=nds-private-remove'>log</a><a href='/cgit.cgi/linux/net-next.git/tree/include/sound/da7218.h?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>tree</a><a href='/cgit.cgi/linux/net-next.git/commit/include/sound/da7218.h?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>commit</a><a href='/cgit.cgi/linux/net-next.git/diff/include/sound/da7218.h?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>diff</a></td><td class='form'><form class='right' method='get' action='/cgit.cgi/linux/net-next.git/log/include/sound/da7218.h'>
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<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/cgit.cgi/linux/net-next.git/log/?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>root</a>/<a href='/cgit.cgi/linux/net-next.git/log/include?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>include</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/sound?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>sound</a>/<a href='/cgit.cgi/linux/net-next.git/log/include/sound/da7218.h?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2'>da7218.h</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/cgit.cgi/linux/net-next.git/log/include/sound/da7218.h?h=nds-private-remove&amp;id=1aa0ec5cdf60b23dfc152f0e9e205f58b0a546b2&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Files</th><th class='left'>Lines</th></tr>