src/lib/libkvm/kvm_pcpu.c, branch releng/12.2FreeBSD source treehttp://cgit.freebsd.org/src/atom?h=releng%2F12.22017-11-20T19:49:47ZGeneral further adoption of SPDX licensing ID tags.2017-11-20T19:49:47ZPedro F. Giffunipfg@FreeBSD.org2017-11-20T19:49:47Zurn:sha1:8a16b7a18f5d0b031f09832fd7752fba717e2a97
Mainly focus on files that use BSD 3-Clause license.
The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
lib: minor spelling fixes in comments.2016-05-01T19:37:33ZPedro F. Giffunipfg@FreeBSD.org2016-05-01T19:37:33Zurn:sha1:75f46cf6c81eff6229b9579513b6e7769b91d75d
No functional change.
Add 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 trailing whitespace.2015-11-26T19:42:10ZJohn Baldwinjhb@FreeBSD.org2015-11-26T19:42:10Zurn:sha1:9789cd30e5555aa092bc0ed21f0b250a02e34c3aAdd kvm_getncpus() to obtain mp_ncpus.2014-02-12T19:22:48ZGleb Smirnoffglebius@FreeBSD.org2014-02-12T19:22:48Zurn:sha1:9292aad4c9f2a604199cc6829f9fd48d1f692e6f
Sponsored by: Nginx, Inc.
While it isn't too late and kvm_read_zpcpu() function isn't yet used2014-02-12T09:41:17ZGleb Smirnoffglebius@FreeBSD.org2014-02-12T09:41:17Zurn:sha1:19b5cffe0b8aea1b378d354091d000a5b4f23d9f
outside libkvm(3), change its order of arguments, so that it is the
same as in kvm_read().
Sponsored by: Nginx, Inc.
Revert r256514 for libkvm. It wasn't correct actually and breaks build.2013-10-15T13:53:35ZGleb Smirnoffglebius@FreeBSD.org2013-10-15T13:53:35Zurn:sha1:332997374084f5086cecfb1c2341de8135006635- While we are spreading the counter(9) across network stack, more userland2013-10-15T10:05:37ZGleb Smirnoffglebius@FreeBSD.org2013-10-15T10:05:37Zurn:sha1:511b5fa5909b76210c85f839fe23fc84a65b8647
tools would need to know about the counter_u64_t type. Allow to include
sys/counter.h from userspace.
- Utilize now defined type in kvm_counter_u64_fetch().
Sponsored by: Netflix
Sponsored by: Nginx, Inc.
o Provide function kvm_read_zpcpu() to access UMA_ZONE_PCPU allocations.2013-04-10T20:26:53ZGleb Smirnoffglebius@FreeBSD.org2013-04-10T20:26:53Zurn:sha1:2a2134043ca6ee86d3a3b5fe4bc9d29ffac50612
o Provide function kvm_counter_u64_fetch() to fetch valut of a counter(9).
Sponsored by: Nginx, Inc.
Completely remove now unused pc_other_cpus, pc_cpumask.2011-07-04T10:45:54ZAttilio Raoattilio@FreeBSD.org2011-07-04T10:45:54Zurn:sha1:a2f4e284b063d4ef888098f52b5474e1425bb404
Tested by: pluknet