diff options
Diffstat (limited to 'share/man/man4/ksyms.4')
| -rw-r--r-- | share/man/man4/ksyms.4 | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/share/man/man4/ksyms.4 b/share/man/man4/ksyms.4 index b60deeb77f2..71e442a3bef 100644 --- a/share/man/man4/ksyms.4 +++ b/share/man/man4/ksyms.4 @@ -1,4 +1,4 @@ -.\" $OpenBSD: ksyms.4,v 1.1 1998/08/25 02:50:56 millert Exp $ +.\" $OpenBSD: ksyms.4,v 1.2 1999/02/23 03:06:11 millert Exp $ .\" .\" Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com> .\" All rights reserved. @@ -35,12 +35,12 @@ .Sy pseudo-device Nm ksyms 1 .Sh DESCRIPTION The -.Nm ksyms +.Nm /dev/ksyms device masquerades as an .Em a.out executable with the symbols from the running kernel as its symbol segment. Use of -.Nm +.Nm /dev/ksyms requires that the boot loader preserve the kernel symbols and place them at the end of the kernel's address space. Any port that is capable of using the @@ -50,7 +50,7 @@ debugger does this, even if is not configured into the kernel. .Pp The -.Nm +.Nm /dev/ksyms device is used to look up the symbol table name list from the running kernel. Because it represents the running kernel it is guaranteed to always be up to date even if the kernel file has been changed (or @@ -63,14 +63,17 @@ routines (note that and .Xr kvm_openfiles 3 will try -.Nm +.Nm /dev/ksyms automatically if the first parameter to them is the .Dv NULL pointer). +.Sh FILES +.Bl -tag -width Pa -compact +.It Pa /dev/ksyms +.El .Sh ERRORS -device will An open of -.Nm +.Nm /dev/ksyms will fail if: .Bl -tag -width Er .It Bq Er EPERM @@ -85,13 +88,13 @@ they were removed with .Xr nlist 3 .Sh HISTORY The -.Nm +.Nm /dev/ksyms device appeared in .Ox 2.4 . .Sh BUGS It is not possible to .Xr mmap 2 -.Nm +.Nm /dev/ksyms because the boot loader does not load the symbol table onto a page boundary (so it is not page aligned). If all the boot loaders were fixed, |