Contributors: 18
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Roland McGrath |
75 |
33.78% |
3 |
10.34% |
| Ingo Molnar |
36 |
16.22% |
1 |
3.45% |
| Kaixiong Yu |
25 |
11.26% |
1 |
3.45% |
| Andrew Lutomirski |
24 |
10.81% |
4 |
13.79% |
| Mathias Krause |
16 |
7.21% |
1 |
3.45% |
| Jeremy Fitzhardinge |
10 |
4.50% |
1 |
3.45% |
| Linus Torvalds (pre-git) |
8 |
3.60% |
2 |
6.90% |
| Andi Kleen |
4 |
1.80% |
1 |
3.45% |
| Joel Granados |
4 |
1.80% |
3 |
10.34% |
| Linus Torvalds |
4 |
1.80% |
2 |
6.90% |
| Luis R. Rodriguez |
4 |
1.80% |
2 |
6.90% |
| Thomas Gleixner |
3 |
1.35% |
2 |
6.90% |
| Valdis Kletnieks |
3 |
1.35% |
1 |
3.45% |
| Matteo Croce |
2 |
0.90% |
1 |
3.45% |
| Greg Kroah-Hartman |
1 |
0.45% |
1 |
3.45% |
| Joe Perches |
1 |
0.45% |
1 |
3.45% |
| Eric Dumazet |
1 |
0.45% |
1 |
3.45% |
| Dave Jones |
1 |
0.45% |
1 |
3.45% |
| Total |
222 |
|
29 |
|
// SPDX-License-Identifier: GPL-2.0
/*
* (C) Copyright 2002 Linus Torvalds
* Portions based on the vdso-randomization code from exec-shield:
* Copyright(C) 2005-2006, Red Hat, Inc., Ingo Molnar
*
* This file contains the needed initializations to support sysenter.
*/
#include <linux/init.h>
#include <linux/smp.h>
#include <linux/kernel.h>
#include <linux/mm_types.h>
#include <linux/elf.h>
#include <asm/processor.h>
#include <asm/vdso.h>
#ifdef CONFIG_COMPAT_VDSO
#define VDSO_DEFAULT 0
#else
#define VDSO_DEFAULT 1
#endif
/*
* Should the kernel map a VDSO page into processes and pass its
* address down to glibc upon exec()?
*/
unsigned int __read_mostly vdso32_enabled = VDSO_DEFAULT;
static int __init vdso32_setup(char *s)
{
vdso32_enabled = simple_strtoul(s, NULL, 0);
if (vdso32_enabled > 1) {
pr_warn("vdso32 values other than 0 and 1 are no longer allowed; vdso disabled\n");
vdso32_enabled = 0;
}
return 1;
}
/*
* For consistency, the argument vdso32=[012] affects the 32-bit vDSO
* behavior on both 64-bit and 32-bit kernels.
* On 32-bit kernels, vdso=[012] means the same thing.
*/
__setup("vdso32=", vdso32_setup);
#ifdef CONFIG_X86_32
__setup_param("vdso=", vdso_setup, vdso32_setup, 0);
#endif
#ifdef CONFIG_SYSCTL
#include <linux/sysctl.h>
static const struct ctl_table vdso_table[] = {
{
#ifdef CONFIG_X86_64
.procname = "vsyscall32",
#else
.procname = "vdso_enabled",
#endif
.data = &vdso32_enabled,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = proc_dointvec_minmax,
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
};
static __init int ia32_binfmt_init(void)
{
#ifdef CONFIG_X86_64
/* Register vsyscall32 into the ABI table */
register_sysctl("abi", vdso_table);
#else
register_sysctl_init("vm", vdso_table);
#endif
return 0;
}
__initcall(ia32_binfmt_init);
#endif /* CONFIG_SYSCTL */