src/lib/libkvm/kvm_read.3, branch releng/11.3FreeBSD source treehttps://cgit-dev.freebsd.org/src/atom?h=releng%2F11.32015-11-27T18:58:26ZAdd support to libkvm for reading vmcores from other architectures.2015-11-27T18:58:26ZJohn Baldwinjhb@FreeBSD.org2015-11-27T18:58:26Zurn:sha1:7f911abe54fff2adbb0dfea5a7fd8e81117d6527
- Add a kvaddr_type to represent kernel virtual addresses instead of
unsigned long.
- Add a struct kvm_nlist which is a stripped down version of struct nlist
that uses kvaddr_t for n_value.
- Add a kvm_native() routine that returns true if an open kvm descriptor
is for a native kernel and memory image.
- Add a kvm_open2() function similar to kvm_openfiles(). It drops the
unused 'swapfile' argument and adds a new function pointer argument for
a symbol resolving function. Native kernels still use _fdnlist() from
libc to resolve symbols if a resolver function is not supplied, but cross
kernels require a resolver.
- Add a kvm_nlist2() function similar to kvm_nlist() except that it uses
struct kvm_nlist instead of struct nlist.
- Add a kvm_read2() function similar to kvm_read() except that it uses
kvaddr_t instead of unsigned long for the kernel virtual address.
- Add a new kvm_arch switch of routines needed by a vmcore backend.
Each backend is responsible for implementing kvm_read2() for a given
vmcore format.
- Use libelf to read headers from ELF kernels and cores (except for
powerpc cores).
- Add internal helper routines for the common page offset hash table used
by the minidump backends.
- Port all of the existing kvm backends to implement a kvm_arch switch and
to be cross-friendly by using private constants instead of ones that
vary by platform (e.g. PAGE_SIZE). Static assertions are present when
a given backend is compiled natively to ensure the private constants
match the real ones.
- Enable all of the existing vmcore backends on all platforms. This means
that libkvm on any platform should be able to perform KVA translation
and read data from a vmcore of any platform.
Tested on: amd64, i386, sparc64 (marius)
Differential Revision: https://reviews.freebsd.org/D3341
Remove the advertising clause. UCB did this some time ago, but these2007-01-08T17:35:36ZWarner Loshimp@FreeBSD.org2007-01-08T17:35:36Zurn:sha1:67e405315d8c029fabdd1ebb1a25745f2e607ccd
files were never updated to reflect that.
MFC After: 2 days
Mechanically kill hard sentence breaks.2004-07-02T23:52:20ZRuslan Ermilovru@FreeBSD.org2004-07-02T23:52:20Zurn:sha1:1a0a934547909744a6a2fa4cfd5b795ec6394f05mdoc(7) police: Use the new .In macro for #include statements.2001-10-01T16:09:29ZRuslan Ermilovru@FreeBSD.org2001-10-01T16:09:29Zurn:sha1:32eef9aeb1f39a1623cea55da147c89abbd5b9a5Remove whitespace at EOL.2001-07-15T07:53:42ZDima Dorfmandd@FreeBSD.org2001-07-15T07:53:42Zurn:sha1:7ebcc426efefea9cd16ac6f565e72030c608f7a4Introduce .Lb macro to libkvm manpages.2000-04-22T16:10:12ZAlexey Zelkinphantom@FreeBSD.org2000-04-22T16:10:12Zurn:sha1:7f5e8c848ccb851a977d66002a597d5e99c60ff3
Use .Pa macro for "enlighting" path
$Id$ -> $FreeBSD$1999-08-28T00:22:10ZPeter Wemmpeter@FreeBSD.org1999-08-28T00:22:10Zurn:sha1:7f3dea244c40159a41ab22da77a434d7c5b5e85aAdd $Id$, to make it simpler for members of the translation teams to1999-07-12T20:50:10ZNik Claytonnik@FreeBSD.org1999-07-12T20:50:10Zurn:sha1:fbc400a67a4e6979c5d99fe59d904cf08992a98f
track.
The $Id$ line is normally at the bottom of the main comment block in the
man page, separated from the rest of the manpage by an empty comment,
like so;
.\" $Id$
.\"
If the immediately preceding comment is a @(#) format ID marker than the
the $Id$ will line up underneath it with no intervening blank lines.
Otherwise, an additional blank line is inserted.
Approved by: bde
Don't use u_long in the synopsis, since u_long is not part of the kvm1999-03-05T17:32:53ZBruce Evansbde@FreeBSD.org1999-03-05T17:32:53Zurn:sha1:114d756447fdd544862b1c13b79e514a0f5fca64
interface.
<sys/types.h> isn't a prerequisite for <kvm.h>.1998-12-16T19:12:14ZBruce Evansbde@FreeBSD.org1998-12-16T19:12:14Zurn:sha1:bc701368b46d92acae942903ecf69ff0db845995