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Ian Lepore 67da50a047 Truncate a too-long interrupt handler name when there is only one handler.
There are only 19 bytes available for the name of an interrupt plus the
name(s) of handlers/drivers using it. There is a mechanism from the days of
shared interrupts that replaces some of the handler names with '+' when they
don't all fit into 19 bytes.

In modern times there is typically only one device on an interrupt, but long
device names are the norm, especially with embedded systems. Also, in systems
with multiple interrupt controllers, the names of the interrupts themselves
can be long. For example, 'gic0,s54: imx6_anatop0' doesn't fit, and
replacing the device driver name with a '+' provides no useful info at all.

When there is only one handler but its name was too long to fit, this
change truncates enough leading chars of the handler name (replacing them
with a '-' char to indicate that some chars are missing) to use all 19
bytes, preserving the unit number typically on the end of the name. Using
the prior example, this results in: 'gic0,s54:-6_anatop0' which provides
plenty of info to figure out which device is involved.

PR:		211946
Reviewed by:	gonzo@ (prior version without the '-' char)
Differential Revision:	https://reviews.freebsd.org/D19675
2019-03-24 17:53:26 +00:00
bin Remove -n flag, fix setting date / time 2019-03-21 06:47:23 +00:00
cddl Ensure that we use a 64-bit value for the last mmap() argument. 2019-03-20 23:35:15 +00:00
contrib Pull in r356809 from upstream llvm trunk (by Eli Friedman): 2019-03-23 14:10:05 +00:00
crypto Merge OpenSSL 1.1.1b. 2019-02-26 19:31:33 +00:00
etc Compile and install most of the googletest examples 2019-03-11 19:50:44 +00:00
gnu Connect lib/libomp to the build. 2019-03-16 15:45:15 +00:00
include Import OpenSSL 1.1.1b. 2019-02-26 18:06:51 +00:00
kerberos5 Add WITH_PIE knob to build Position Independent Executables 2019-02-15 22:22:38 +00:00
lib Fix libvgl to not always fail to initialize due to its invalid mmap() 2019-03-24 16:47:43 +00:00
libexec Add ability to automatically load ipfw_nat64, ipfw_nptv6 and ipfw_pmod 2019-03-23 15:41:32 +00:00
release Bump the IMAGE_SIZE for arm64 SoC images to prevent failures due 2019-03-21 14:17:55 +00:00
rescue rescue: set NO_SHARED in Makefile 2018-11-19 22:18:18 +00:00
sbin Make WD and WDC aliases for HGST. 2019-03-21 06:27:58 +00:00
secure Merge OpenSSL 1.1.1b. 2019-02-26 19:31:33 +00:00
share Add sysctl variable net.inet.tcp.rexmit_initial for setting RTO.Initial 2019-03-23 21:36:59 +00:00
stand loader: fix loading of kernels with . in path 2019-03-20 16:24:47 +00:00
sys Truncate a too-long interrupt handler name when there is only one handler. 2019-03-24 17:53:26 +00:00
targets retire LINKER_FEATURES filter flag 2018-11-12 20:44:22 +00:00
tests pf tests: Fix accidental duplication of content 2019-03-23 01:07:51 +00:00
tools From r345400, remove the ippool rc script when ipfilter is not wanted 2019-03-22 01:43:55 +00:00
usr.bin Update mentor and calendar files 2019-03-22 17:37:14 +00:00
usr.sbin makefs: Fix "time" mtree attribute handling 2019-03-18 19:26:36 +00:00
.arcconfig callsign isn't required anymore 2016-09-29 06:19:45 +00:00
.arclint arc lint: ignore /tests/ in chmod 2017-12-19 03:38:06 +00:00
.gitattributes MK_ZFS -> {MK_ZFS|MK_LOADER_ZFS}, this is so we can diable userland / kernel 2019-01-05 22:45:20 +00:00
.gitignore Ignore _.universe-toolchain file. 2018-07-01 13:50:37 +00:00
COPYRIGHT Happy New Year 2019! 2019-01-01 00:25:25 +00:00
LOCKS LOCKS: update current locks 2018-06-09 03:08:04 +00:00
MAINTAINERS Update maintainers for libunwind and lldb. 2019-03-16 13:26:42 +00:00
Makefile Update comment about 'universe' disk usage 2018-11-10 19:09:48 +00:00
Makefile.inc1 Improve english grammar for kernel built time 2019-03-19 19:58:40 +00:00
Makefile.libcompat Use ...-freebsd13.0 in -target strings. 2018-11-12 16:55:20 +00:00
Makefile.sys.inc AUTO_OBJ: For all top-level targets enforce using an OBJDIR. 2017-12-05 21:29:47 +00:00
ObsoleteFiles.inc Set tentative merge date, and bump __FreeBSD_version. 2019-03-04 19:23:11 +00:00
README Import OpenSSL 1.1.1b. 2019-02-26 18:06:51 +00:00
README.md README: add generic notes about GENERIC and NOTES 2018-06-17 19:44:24 +00:00
UPDATING Add UPDATING note for geom_uzip(4)/xz, and bump geom_uzip(4) man page date. 2019-03-23 10:13:01 +00:00

FreeBSD Source:

This is the top level of the FreeBSD source directory. This file was last revised on: FreeBSD

FreeBSD is an operating system used to power modern servers, desktops, and embedded platforms. A large community has continually developed it for more than thirty years. Its advanced networking, security, and storage features have made FreeBSD the platform of choice for many of the busiest web sites and most pervasive embedded networking and storage devices.

For copyright information, please see the file COPYRIGHT in this directory. Additional copyright information also exists for some sources in this tree - please see the specific source directories for more information.

The Makefile in this directory supports a number of targets for building components (or all) of the FreeBSD source tree. See build(7), config(8), https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/makeworld.html, and https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig.html for more information, including setting make(1) variables.

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bin		System/user commands.

cddl		Various commands and libraries under the Common Development
		and Distribution License.

contrib		Packages contributed by 3rd parties.

crypto		Cryptography stuff (see crypto/README).

etc		Template files for /etc.

gnu		Various commands and libraries under the GNU Public License.
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include		System include files.

kerberos5	Kerberos5 (Heimdal) package.

lib		System libraries.

libexec		System daemons.

release		Release building Makefile & associated tools.

rescue		Build system for statically linked /rescue utilities.

sbin		System commands.

secure		Cryptographic libraries and commands.

share		Shared resources.

stand		Boot loader sources.

sys		Kernel sources.

sys/<arch>/conf Kernel configuration files. GENERIC is the configuration
		used in release builds. NOTES contains documentation of
		all possible entries.

tests		Regression tests which can be run by Kyua.  See tests/README
		for additional information.

tools		Utilities for regression testing and miscellaneous tasks.

usr.bin		User commands.

usr.sbin	System administration commands.

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https://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/current-stable.html