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share/man/man9/kstack_contains.9
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| .\" SPDX-License-Identifier: BSD-2-Clause | |||||||||||
| .\" | |||||||||||
| .\" Copyright (c) 2023 Joseph Koshy <jkoshy@FreeBSD.org> | |||||||||||
| .\" | |||||||||||
| .\" Redistribution and use in source and binary forms, with or without | |||||||||||
| .\" modification, are permitted provided that the following conditions | |||||||||||
| .\" are met: | |||||||||||
| .\" 1. Redistributions of source code must retain the above copyright | |||||||||||
| .\" notice, this list of conditions and the following disclaimer. | |||||||||||
| .\" 2. Redistributions in binary form must reproduce the above copyright | |||||||||||
| .\" notice, this list of conditions and the following disclaimer in the | |||||||||||
| .\" documentation and/or other materials provided with the distribution. | |||||||||||
| .\" | |||||||||||
| .\" THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY EXPRESS OR | |||||||||||
| .\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |||||||||||
| .\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |||||||||||
| .\" IN NO EVENT SHALL THE DEVELOPERS BE LIABLE FOR ANY DIRECT, INDIRECT, | |||||||||||
| .\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |||||||||||
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| .\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |||||||||||
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| .\" | |||||||||||
| .\" $FreeBSD$ | |||||||||||
| .\" | |||||||||||
| .Dd May 2, 2023 | |||||||||||
| .Dt KSTACK_CONTAINS 9 | |||||||||||
mhorne: `mandoc -Tlint` prefers this. | |||||||||||
| .Os | |||||||||||
| .Sh NAME | |||||||||||
| .Nm kstack_contains | |||||||||||
| .Nd determine if an address range lies within the kernel stack for a thread | |||||||||||
| .Sh SYNOPSIS | |||||||||||
| .In machine/stack.h | |||||||||||
| .Ft bool | |||||||||||
Done Inline Actions.In machine/stack.h mhorne: .In machine/stack.h | |||||||||||
| .Fn kstack_contains "struct thread *td" "vm_offset_t va" "size_t len" | |||||||||||
| .Sh DESCRIPTION | |||||||||||
| This function can be used to determine whether a given address range | |||||||||||
| falls within the kernel stack for the thread pointed to by | |||||||||||
| .Fa td . | |||||||||||
Done Inline Actions
(it is all threads not just kernel threads) mhorne: (it is all threads not just kernel threads) | |||||||||||
| .Sh RETURN VALUES | |||||||||||
| The function | |||||||||||
| .Fn kstack_contains | |||||||||||
| returns | |||||||||||
| .Dv true | |||||||||||
Done Inline Actions
mhorne: | |||||||||||
| if the range of addresses | |||||||||||
| .Bo | |||||||||||
| .Fa va Ns .. Ns ( | |||||||||||
| .Fa va Ns + Ns | |||||||||||
| .Fa len Ns - Ns 1 ) | |||||||||||
Done Inline Actions.Fa for function arguments. mhorne: .Fa for function arguments. | |||||||||||
| .Bc | |||||||||||
| (both addresses inclusive) lies within the kernel stack for the thread | |||||||||||
| pointed to by argument | |||||||||||
| .Ar td , | |||||||||||
mhorneUnsubmitted Done Inline Actions
Sorry, one more that I missed. mhorne: Sorry, one more that I missed. | |||||||||||
| or returns | |||||||||||
| .Dv false | |||||||||||
Done Inline Actions
mhorne: | |||||||||||
| otherwise. | |||||||||||
| .Sh ERRORS | |||||||||||
| This function does not return an error. | |||||||||||
| .Sh SEE ALSO | |||||||||||
| .Xr kproc 9 , | |||||||||||
| .Xr kthread 9 | |||||||||||
mandoc -Tlint prefers this.