1 .. SPDX-License-Identifier: GPL-2.0+ <<
2 <<
3 ================================ 1 ================================
4 Documentation for /proc/sys/abi/ 2 Documentation for /proc/sys/abi/
5 ================================ 3 ================================
6 4
7 .. See scripts/check-sysctl-docs to keep this !! 5 kernel version 2.6.0.test2
8 .. scripts/check-sysctl-docs -vtable="abi" \ <<
9 .. Documentation/admin-guide/sysctl/ab <<
10 .. $(git grep -l register_sysctl_) <<
11 6
12 Copyright (c) 2020, Stephen Kitt !! 7 Copyright (c) 2003, Fabian Frederick <ffrederick@users.sourceforge.net>
13 8
14 For general info, see Documentation/admin-guid !! 9 For general info: index.rst.
15 10
16 ---------------------------------------------- 11 ------------------------------------------------------------------------------
17 12
18 The files in ``/proc/sys/abi`` can be used to !! 13 This path is binary emulation relevant aka personality types aka abi.
19 ABI-related settings. !! 14 When a process is executed, it's linked to an exec_domain whose
>> 15 personality is defined using values available from /proc/sys/abi.
>> 16 You can find further details about abi in include/linux/personality.h.
>> 17
>> 18 Here are the files featuring in 2.6 kernel:
>> 19
>> 20 - defhandler_coff
>> 21 - defhandler_elf
>> 22 - defhandler_lcall7
>> 23 - defhandler_libcso
>> 24 - fake_utsname
>> 25 - trace
>> 26
>> 27 defhandler_coff
>> 28 ---------------
>> 29
>> 30 defined value:
>> 31 PER_SCOSVR3::
>> 32
>> 33 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS | SHORT_INODE
>> 34
>> 35 defhandler_elf
>> 36 --------------
>> 37
>> 38 defined value:
>> 39 PER_LINUX::
>> 40
>> 41 0
>> 42
>> 43 defhandler_lcall7
>> 44 -----------------
>> 45
>> 46 defined value :
>> 47 PER_SVR4::
>> 48
>> 49 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
>> 50
>> 51 defhandler_libsco
>> 52 -----------------
>> 53
>> 54 defined value:
>> 55 PER_SVR4::
20 56
21 Currently, these files might (depending on you !! 57 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
22 show up in ``/proc/sys/kernel``: <<
23 58
24 .. contents:: :local: !! 59 fake_utsname
>> 60 ------------
25 61
26 vsyscall32 (x86) !! 62 Unused
27 ================ <<
28 63
29 Determines whether the kernels maps a vDSO pag !! 64 trace
30 can be set to 1 to enable, or 0 to disable. De !! 65 -----
31 ``CONFIG_COMPAT_VDSO`` is set, disabled otherw <<
32 66
33 This controls the same setting as the ``vdso32 !! 67 Unused
34 parameter. <<
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