#
685dc743 |
|
16-Aug-2023 |
Warner Losh <imp@FreeBSD.org> |
sys: Remove $FreeBSD$: one-line .c pattern Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/
|
#
7029da5c |
|
26-Feb-2020 |
Pawel Biernacki <kaktus@FreeBSD.org> |
Mark more nodes as CTLFLAG_MPSAFE or CTLFLAG_NEEDGIANT (17 of many) r357614 added CTLFLAG_NEEDGIANT to make it easier to find nodes that are still not MPSAFE (or already are but aren’t properly marked). Use it in preparation for a general review of all nodes. This is non-functional change that adds annotations to SYSCTL_NODE and SYSCTL_PROC nodes using one of the soon-to-be-required flags. Mark all obvious cases as MPSAFE. All entries that haven't been marked as MPSAFE before are by default marked as NEEDGIANT Approved by: kib (mentor, blanket) Commented by: kib, gallatin, melifaro Differential Revision: https://reviews.freebsd.org/D23718
|
#
0766f278 |
|
13-Jun-2018 |
Jonathan T. Looney <jtl@FreeBSD.org> |
Make UMA and malloc(9) return non-executable memory in most cases. Most kernel memory that is allocated after boot does not need to be executable. There are a few exceptions. For example, kernel modules do need executable memory, but they don't use UMA or malloc(9). The BPF JIT compiler also needs executable memory and did use malloc(9) until r317072. (Note that a side effect of r316767 was that the "small allocation" path in UMA on amd64 already returned non-executable memory. This meant that some calls to malloc(9) or the UMA zone(9) allocator could return executable memory, while others could return non-executable memory. This change makes the behavior consistent.) This change makes malloc(9) return non-executable memory unless the new M_EXEC flag is specified. After this change, the UMA zone(9) allocator will always return non-executable memory, and a KASSERT will catch attempts to use the M_EXEC flag to allocate executable memory using uma_zalloc() or its variants. Allocations that do need executable memory have various choices. They may use the M_EXEC flag to malloc(9), or they may use a different VM interfact to obtain executable pages. Now that malloc(9) again allows executable allocations, this change also reverts most of r317072. PR: 228927 Reviewed by: alc, kib, markj, jhb (previous version) Sponsored by: Netflix Differential Revision: https://reviews.freebsd.org/D15691
|
#
51369649 |
|
20-Nov-2017 |
Pedro F. Giffuni <pfg@FreeBSD.org> |
sys: further adoption of SPDX licensing ID tags. 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.
|
#
af197328 |
|
17-Apr-2017 |
Jung-uk Kim <jkim@FreeBSD.org> |
Use kmem_malloc() instead of malloc(9) for the native amd64 filter. r316767 broke the BPF JIT compiler for amd64 because malloc()'d space is no longer executable. Discussed with: kib, alc
|
#
c7ff2b13 |
|
17-Apr-2017 |
Jung-uk Kim <jkim@FreeBSD.org> |
Remove an unnecessary declaration missed in the previous commit.
|
#
a7d5f7eb |
|
19-Oct-2010 |
Jamie Gritton <jamie@FreeBSD.org> |
A new jail(8) with a configuration file, to replace the work currently done by /etc/rc.d/jail.
|
#
c12b965f |
|
20-Nov-2009 |
Jung-uk Kim <jkim@FreeBSD.org> |
General style cleanup, no functional change.
|
#
5ecf7736 |
|
20-Nov-2009 |
Jung-uk Kim <jkim@FreeBSD.org> |
- Allocate scratch memory on stack instead of pre-allocating it with the filter as we do from bpf_filter()[1]. - Revert experimental use of contigmalloc(9)/contigfree(9). It has no performance benefit over malloc(9)/free(9)[2]. Requested by: rwatson[1] Pointed out by: rwatson, jhb, alc[2]
|
#
ae4fdab8 |
|
18-Nov-2009 |
Jung-uk Kim <jkim@FreeBSD.org> |
- Change internal function bpf_jit_compile() to return allocated size of the generated binary and remove page size limitation for userland. - Use contigmalloc(9)/contigfree(9) instead of malloc(9)/free(9) to make sure the generated binary aligns properly and make it physically contiguous.
|
#
366652f9 |
|
18-Nov-2009 |
Jung-uk Kim <jkim@FreeBSD.org> |
- Make BPF JIT compiler working again in userland. We are limiting size of generated native binary to page size for now. - Update copyright date and fix some style nits.
|
#
d7f03759 |
|
19-Oct-2008 |
Ulf Lilleengen <lulf@FreeBSD.org> |
- Import the HEAD csup code which is the basis for the cvsmode work.
|
#
06302de2 |
|
28-Aug-2008 |
Jung-uk Kim <jkim@FreeBSD.org> |
Initialize scratch memory for JIT-compiled filter when it is allocated. Previously it may have contained unnecessary (even sensitive) data from the previous allocation. As a (good) side effect, scratch memory may be used to store the previous filter state(s) safely because it is allocated and freed with filter itself. However, use it carefully because bpf_filter(9) does not have this behavior. MFC after: 3 days
|
#
a2b12e3b |
|
26-Aug-2008 |
Jung-uk Kim <jkim@FreeBSD.org> |
Move empty filter handling to MI source. MFC after: 3 days
|
#
f471e569 |
|
25-Aug-2008 |
Jung-uk Kim <jkim@FreeBSD.org> |
Fix a typo in copyrights.
|
#
02d2b7bd |
|
25-Aug-2008 |
Jung-uk Kim <jkim@FreeBSD.org> |
Embed scratch memory in the filter structure. MFC after: 3 days
|
#
3bfea868 |
|
18-Aug-2008 |
Jung-uk Kim <jkim@FreeBSD.org> |
- Make these files compilable on user land. - Update copyrights and fix style(9).
|
#
848c454c |
|
07-Dec-2005 |
Jung-uk Kim <jkim@FreeBSD.org> |
Add BPF Just-In-Time compiler support for ng_bpf(4). The sysctl is changed from net.bpf.jitter.enable to net.bpf_jitter.enable and this controls both bpf(4) and ng_bpf(4) now.
|
#
6a96c483 |
|
06-Dec-2005 |
Jung-uk Kim <jkim@FreeBSD.org> |
s/M_WAITOK/M_NOWAIT/ while mutex is held. Pointed out by: csjp
|
#
ae275efc |
|
05-Dec-2005 |
Jung-uk Kim <jkim@FreeBSD.org> |
Add experimental BPF Just-In-Time compiler for amd64 and i386. Use the following kernel configuration option to enable: options BPF_JITTER If you want to use bpf_filter() instead (e. g., debugging), do: sysctl net.bpf.jitter.enable=0 to turn it off. Currently BIOCSETWF and bpf_mtap2() are unsupported, and bpf_mtap() is partially supported because 1) no need, 2) avoid expensive m_copydata(9). Obtained from: WinPcap 3.1 (for i386)
|