/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

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#ifndef _LINUX_PERSONALITY_H

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#define _LINUX_PERSONALITY_H

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/*

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* Flags for bug emulation.

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*

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* These occupy the top three bytes.

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*/

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enum {

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UNAME26 = 0x0020000,

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ADDR_NO_RANDOMIZE = 0x0040000, /* disable randomization of VA space */

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FDPIC_FUNCPTRS = 0x0080000, /* userspace function ptrs point to descriptors

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* (signal handling)

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*/

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MMAP_PAGE_ZERO = 0x0100000,

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ADDR_COMPAT_LAYOUT = 0x0200000,

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READ_IMPLIES_EXEC = 0x0400000,

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ADDR_LIMIT_32BIT = 0x0800000,

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SHORT_INODE = 0x1000000,

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WHOLE_SECONDS = 0x2000000,

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STICKY_TIMEOUTS = 0x4000000,

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ADDR_LIMIT_3GB = 0x8000000,

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};

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/*

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* Security-relevant compatibility flags that must be

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* cleared upon setuid or setgid exec:

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*/

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#define PER_CLEAR_ON_SETID (READ_IMPLIES_EXEC | \

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ADDR_NO_RANDOMIZE | \

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ADDR_COMPAT_LAYOUT | \

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MMAP_PAGE_ZERO)

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/*

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* Personality types.

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*

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* These go in the low byte. Avoid using the top bit, it will

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* conflict with error returns.

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*/

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enum {

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PER_LINUX = 0x0000,

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PER_LINUX_32BIT = 0x0000 | ADDR_LIMIT_32BIT,

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PER_LINUX_FDPIC = 0x0000 | FDPIC_FUNCPTRS,

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PER_SVR4 = 0x0001 | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,

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PER_SVR3 = 0x0002 | STICKY_TIMEOUTS | SHORT_INODE,

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PER_SCOSVR3 = 0x0003 | STICKY_TIMEOUTS |

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WHOLE_SECONDS | SHORT_INODE,

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PER_OSR5 = 0x0003 | STICKY_TIMEOUTS | WHOLE_SECONDS,

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PER_WYSEV386 = 0x0004 | STICKY_TIMEOUTS | SHORT_INODE,

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PER_ISCR4 = 0x0005 | STICKY_TIMEOUTS,

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PER_BSD = 0x0006,

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PER_SUNOS = 0x0006 | STICKY_TIMEOUTS,

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PER_XENIX = 0x0007 | STICKY_TIMEOUTS | SHORT_INODE,

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PER_LINUX32 = 0x0008,

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PER_LINUX32_3GB = 0x0008 | ADDR_LIMIT_3GB,

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PER_IRIX32 = 0x0009 | STICKY_TIMEOUTS,/* IRIX5 32-bit */

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PER_IRIXN32 = 0x000a | STICKY_TIMEOUTS,/* IRIX6 new 32-bit */

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PER_IRIX64 = 0x000b | STICKY_TIMEOUTS,/* IRIX6 64-bit */

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PER_RISCOS = 0x000c,

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PER_SOLARIS = 0x000d | STICKY_TIMEOUTS,

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PER_UW7 = 0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,

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PER_OSF4 = 0x000f, /* OSF/1 v4 */

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PER_HPUX = 0x0010,

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PER_MASK = 0x00ff,

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};

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#endif /* _LINUX_PERSONALITY_H */

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