Cross Reference: /src/lib/librumpuser

History log of /src/lib/librumpuser
Revision	Date	Author	Comments
1.30	03-Jun-2023	lukem	bsd.own.mk: rename GCC_NO_* to CC_WNO_* Rename compiler-warning-disable variables from GCC_NO_warning to CC_WNO_warning where warning is the full warning name as used by the compiler. GCC_NO_IMPLICIT_FALLTHRU is CC_WNO_IMPLICIT_FALLTHROUGH Using the convention CC_compilerflag, where compilerflag is based on the full compiler flag name.
1.29	01-Nov-2021	nia	Force at most partial RELRO for rump_server and related libraries rump_server with -l uses lazy resolution by default and thus cannot be used with full RELRO/BIND_NOW.
1.28	13-Oct-2019	mrg	introduce some common variables for use in GCC warning disables: GCC_NO_FORMAT_TRUNCATION -Wno-format-truncation (GCC 7/8) GCC_NO_STRINGOP_TRUNCATION -Wno-stringop-truncation (GCC 8) GCC_NO_STRINGOP_OVERFLOW -Wno-stringop-overflow (GCC 8) GCC_NO_CAST_FUNCTION_TYPE -Wno-cast-function-type (GCC 8) use these to turn off warnings for most GCC-8 complaints. many of these are false positives, most of the real bugs are already commited, or are yet to come. we plan to introduce versions of (some?) of these that use the "-Wno-error=" form, which still displays the warnings but does not make it an error, and all of the above will be re-considered as either being "fix me" (warning still displayed) or "warning is wrong."
1.27	11-May-2017	sevan	branches: 1.27.10; With the removal of HAVE_REGISTER_T from rumpuser_port.h, _KERNTYPES does not need to be defined. This allows register_t to be typedef'd to RUMP_REGISTER_T without conflict, as highlighted in PR kern/52206.
1.26	10-May-2017	sevan	Revert previous change so builds can resume. _KERNTYPES needs to be defined for NetBSD builds to succeed. _KERNTYPES must not be defined for buildrum.sh builds to succeed.
1.25	10-May-2017	sevan	Do not define _KERNTYPES as this breaks build with buildrump.sh due to conflicting types for register_t. Closes PR kern/52206 Steered in the right direction by christos.
1.24	23-Jan-2016	christos	branches: 1.24.6; Define _KERNTYPES for things that need it.
1.23	09-Nov-2014	pooka	Move rump kernel man pages from various sources to sys/rump namely: * src/lib is used only when building for POSIX'y platforms, but the man pages have their use for all platforms * rumpuser.3 is a function of the rump kernel, not one of the of the POSIX'y implementation hosted in src/lib/librumpuser no functional change
1.22	28-Oct-2014	pooka	Don't install rumpuser.h here. It's already installed by the rump kernel build (sys/rump/include/rump)
1.21	22-Jul-2014	justin	Clean up random implementation for librumpuser Use /dev/urandom for platforms without arc4random, not srandom(), deduplicate code, do not read excessive random bytes Reviewed by pooka@
1.20	11-Jul-2014	justin	Add a fiber based implementation of librumpuser in addition to the default pthreads based version. Discussed with pooka@
1.19	09-Jul-2014	justin	Split out file and memory access in librumpuser This allows alternate implementations to reuse these parts, and the file parts will at the next hypercall revision be moved to their own driver. Discussed with pooka@
1.18	17-Jun-2014	alnsn	Antti objected to including rumpuser_sync_icache. Exclude it from the build.
1.17	17-Jun-2014	alnsn	Implement rumpuser_sync_icache hypercall.
1.16	20-Feb-2014	pooka	branches: 1.16.2; Translate signal numbers between rump kernel and (POSIX) host.
1.15	10-Sep-2013	pooka	Install rumpuser_port.h
1.14	15-May-2013	pooka	also, bsd.own.mk to pick up mk.conf
1.13	15-May-2013	pooka	Make it possible for external parties to specify additional dplibs. This is useful for example on platforms which require -ldl.
1.12	30-Apr-2013	pooka	put optional modules on a separate SRCS line
1.11	30-Apr-2013	pooka	Translate error codes between the hypervisor and rump kernel.
1.10	29-Apr-2013	pooka	Rework how the bio hypercalls work, part 1/n: Reduce the set of hypercalls to one: "do block i/o". This not only eliminates a lot of pseudo-duplicate code, it also gives the hypervisor a lot more freedom on how to optimize the i/o.
1.9	18-Mar-2013	pooka	Move the rumpuser_net set of hypercalls to be a private to the sockin component. This cleans up the generic hypercall interfaces from ones specific to only one component. They should always have been private, but the infrastructure to "make it so" didn't exist earlier. no functional change
1.8	01-Mar-2013	pooka	Add interfaces that out-of-librumpuser hypercalls can use to unschedule and reschedule themselves if they plan to block.
1.7	01-Mar-2013	pooka	limit use of rumpuser.h to where it is meant to be used from
1.6	21-Mar-2012	matt	branches: 1.6.2; These directories default to WARNS?=5
1.5	30-Nov-2010	pooka	branches: 1.5.6; Require server to be explicitly initialized with rump_init_server(url). Also, add rump_daemonize_begin() / rump_daemonize_end() to help with the "can't daemon() after pthread_create()" problem. Applications could accomplish the same, but since it's such a common operation, provide a little help.
1.4	30-Nov-2010	pooka	add commented-out -D_DIAGNOSTIC
1.3	27-Oct-2010	pooka	Start rework of system call proxying over socket ("sysproxy"). This incarnation is written in the user namespace as opposed to the previous one which was done in kernel namespace. Also, rump does all the handshaking now instead of excepting an application to come up with the user namespace socket. There's still a lot to do, including making code "a bit" more robust, actually running different clients in a different process inside the kernel and splitting the client side library from librump. I'm committing this now so that I don't lose it, plus it generally works as long as you don't use it in unexcepted ways: i've tested ifconfig(8), route(8), envstat(8) and sysctl(8).
1.2	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.1	29-Jul-2008	pooka	branches: 1.1.2; Install rump libraries and utilities to the base system and remove the private non-installed build infrastructure from sys/rump. breakdown of commit: * install relevant headers into /usr/include/rump * build sys/rump/librump/rumpuser and sys/rump/librump/rumpkern from src/lib and install as librumpuser and librump, respectively + this retains the ability to test a librump build with just the kernel sources at hand * move sys/rump/fs/lib/libukfs and sys/rump/fs/lib/libp2k to src/lib for general consumption, they are not kernel-space dwellers anyway * build and install sys/rump/fs/lib/lib$fs as librumpfs_$fs * add chapter 3 manual pages for rump, rumpuser, ukfs and p2k * build and install userspace kernel file system daemons if MKPUFFS=yes is spexified * retire fsconsole for now, it will make a comeback with an actually implemented version shortly
1.1.2.2	18-Sep-2008	wrstuden	Sync with wrstuden-revivesa-base-2.
1.1.2.1	29-Jul-2008	wrstuden	file Makefile was added on branch wrstuden-revivesa on 2008-09-18 04:39:25 +0000
1.5.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.5.6.1	17-Apr-2012	yamt	sync with head
1.6.2.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.6.2.1	23-Jun-2013	tls	resync from head
1.16.2.1	10-Aug-2014	tls	Rebase.
1.24.6.2	19-May-2017	pgoyette	Resolve conflicts from previous merge (all resulting from $NetBSD keywork expansion)
1.24.6.1	11-May-2017	pgoyette	Sync with HEAD
1.27.10.1	13-Apr-2020	martin	Mostly merge changes from HEAD upto 20200411
1.3	05-Jul-2023	lukem	mk.conf(5): document rump variables Update mk.conf(5) with the rump variables from - lib/librumpuser/README.compileopts - sys/rump/README.compileopts Add cross-references back to mk.conf(5) in those files. Ensure that the Default: is listed last in a description, for consistency with the convention in this file.
1.2	02-Aug-2021	andvar	fix typo in README.compileopts text.
1.1	25-Jan-2016	pooka	Move librumpuser compile-time options into the librumpuser source directory. Those options apply only for the in-tree implementation.
1.1	03-Apr-2013	agc	branches: 1.1.2; file Version.map was initially added on branch agc-symver.
1.1.2.1	03-Apr-2013	agc	Add symbol versioning information for the following libraries: libbluetooth libbsdmalloc libexecinfo libform libintl libipsec libkvm liblwres libnpf libp2k libpci libperfuse libppath libprop libpuffs librefuse librpcsvc librt librumpclient librumphijack librumpuser libukfs libusbhid libwrap
1.7	16-Oct-2024	ozaki-r	librumpuser: regen (autoreconf -iv)
1.6	15-Jul-2023	lukem	branches: 1.6.2; librumpuser/configure: regen for URL fixes
1.5	05-Mar-2015	pooka	check for utimensat
1.4	03-Jan-2015	pooka	check that sys/cdefs.h builds with -Werror (not the case on alpine linux where it contains an unconditional #warning)
1.3	05-Nov-2014	pooka	check for clock_gettime from librt too
1.2	05-Nov-2014	pooka	actually check for clock_nanosleep()
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.6.2.1	02-Aug-2025	perseant	Sync with HEAD
1.8	16-Oct-2024	ozaki-r	librumpuser/configure.ac: check preadv and pwritev
1.7	15-Jul-2023	lukem	branches: 1.7.2; librumpuser/configure: fix missing directory warning Use "build-aux" instead of the non-existant "m4" as the directory for AC_CONFIG_MACRO_DIR. Avoids autoreconf warning: aclocal: warning: couldn't open directory 'm4': No such file or directory No change to generated files.
1.6	14-Jul-2023	lukem	fix rump URLs Link to https://github.com/rumpkernel/ instead of a site now taken over by an SEO squatter. Per discussion on github.com/rumpkernel issues with pooka. PR misc/57501
1.5	05-Mar-2015	pooka	branches: 1.5.26; check for utimensat
1.4	03-Jan-2015	pooka	check that sys/cdefs.h builds with -Werror (not the case on alpine linux where it contains an unconditional #warning)
1.3	05-Nov-2014	pooka	check for clock_gettime from librt too
1.2	05-Nov-2014	pooka	actually check for clock_nanosleep()
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.5.26.1	20-Sep-2024	martin	Pull up following revision(s) (requested by rin in ticket #889): lib/librumpuser/configure.ac: revision 1.6 lib/librumpuser/rumpuser_port.h: revision 1.53 lib/libpthread/Makefile: revision 1.97 sys/rump/share/man/man3/rumpuser.3: revision 1.4 sys/rump/share/man/man7/rumpkernel.7: revision 1.4 sys/rump/share/man/man7/rumpkernel.7: revision 1.5 fix rump URLs in man pages Link to https://github.com/rumpkernel/wiki/wiki instead of a site now taken over by an SEO squatter. Per discussion on github.com/rumpkernel issues with pooka. PR misc/57501 fix rump URLs Link to https://github.com/rumpkernel/ instead of a site now taken over by an SEO squatter. Per discussion on github.com/rumpkernel issues with pooka. PR misc/57501 use rumpkernel.github.io as the entry point
1.7.2.1	02-Aug-2025	perseant	Sync with HEAD
1.13	27-Dec-2017	ozaki-r	Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels.
1.12	15-Feb-2015	justin	branches: 1.12.8; Minor fixes to types and includes
1.11	13-Feb-2015	justin	Whitespace fixes, no functional change
1.10	13-Feb-2015	justin	Fix some return value checks
1.9	29-Dec-2014	justin	Just abort on currently unsupported functions.
1.8	08-Nov-2014	justin	Remove superfluous getcontext()
1.7	08-Nov-2014	justin	Move makecontext into function with getcontext for consistency
1.6	08-Nov-2014	justin	Fix some error handling cases.
1.5	05-Nov-2014	pooka	assert that clock_gettime() does not fail
1.4	24-Aug-2014	pooka	RCS Id police (because we can. or have you heard of git id police?)
1.3	25-Jul-2014	justin	branches: 1.3.2; 1.3.6; Clean up error handling in rumpuser_init()
1.2	22-Jul-2014	justin	Clean up random implementation for librumpuser Use /dev/urandom for platforms without arc4random, not srandom(), deduplicate code, do not read excessive random bytes Reviewed by pooka@
1.1	11-Jul-2014	justin	Add a fiber based implementation of librumpuser in addition to the default pthreads based version. Discussed with pooka@
1.3.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.3.6.1	25-Jul-2014	tls	file rumpfiber.c was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.3.2.2	10-Aug-2014	tls	Rebase.
1.3.2.1	25-Jul-2014	tls	file rumpfiber.c was added on branch tls-earlyentropy on 2014-08-10 06:52:25 +0000
1.12.8.1	13-Jan-2018	snj	Pull up following revision(s) (requested by ozaki-r in ticket #495): lib/librumpuser/rumpfiber.c: revision 1.13 lib/librumpuser/rumpuser_pth.c: revision 1.46 lib/librumpuser/rumpuser_pth_dummy.c: revision 1.18 sys/kern/kern_condvar.c: revision 1.40 sys/kern/kern_lock.c: revision 1.161 sys/kern/kern_mutex.c: revision 1.68 sys/kern/kern_rwlock.c: revision 1.48 sys/rump/include/rump/rumpuser.h: revision 1.115 sys/rump/librump/rumpkern/locks.c: revision 1.76-1.79 Apply C99-style struct initialization to lockops_t -- Tweak LOCKDEBUG macros (NFC) -- Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels. -- rump: check if the mutex is surely owned by the caller in mutex_exit Unlocking a not-owned mutex wasn't detected well (it could detect if the mutex is not held by anyone but that's not enough). Let's check it (the check is the same as normal kernel's mutex). If LOCKDEBUG is enabled, give the check over LOCKDEBUG because it can provide better debugging information.
1.4	15-Feb-2015	justin	Minor fixes to types and includes
1.3	29-Dec-2014	justin	Just abort on currently unsupported functions.
1.2	24-Aug-2014	pooka	RCS Id police (because we can. or have you heard of git id police?)
1.1	11-Jul-2014	justin	branches: 1.1.2; 1.1.6; Add a fiber based implementation of librumpuser in addition to the default pthreads based version. Discussed with pooka@
1.1.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.6.1	11-Jul-2014	tls	file rumpfiber.h was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.1.2.2	10-Aug-2014	tls	Rebase.
1.1.2.1	11-Jul-2014	tls	file rumpfiber.h was added on branch tls-earlyentropy on 2014-08-10 06:52:25 +0000
1.5	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.4	25-Aug-2014	justin	lso translate errno in the rumpfiber version
1.3	24-Aug-2014	pooka	RCS Id police (because we can. or have you heard of git id police?)
1.2	20-Aug-2014	justin	Add missing include
1.1	11-Jul-2014	justin	branches: 1.1.2; 1.1.6; Add a fiber based implementation of librumpuser in addition to the default pthreads based version. Discussed with pooka@
1.1.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.6.1	11-Jul-2014	tls	file rumpfiber_bio.c was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.1.2.2	10-Aug-2014	tls	Rebase.
1.1.2.1	11-Jul-2014	tls	file rumpfiber_bio.c was added on branch tls-earlyentropy on 2014-08-10 06:52:25 +0000
1.4	15-Feb-2015	justin	Minor fixes to types and includes
1.3	29-Dec-2014	justin	Just abort on currently unsupported functions.
1.2	24-Aug-2014	pooka	RCS Id police (because we can. or have you heard of git id police?)
1.1	11-Jul-2014	justin	branches: 1.1.2; 1.1.6; Add a fiber based implementation of librumpuser in addition to the default pthreads based version. Discussed with pooka@
1.1.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.6.1	11-Jul-2014	tls	file rumpfiber_sp.c was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.1.2.2	10-Aug-2014	tls	Rebase.
1.1.2.1	11-Jul-2014	tls	file rumpfiber_sp.c was added on branch tls-earlyentropy on 2014-08-10 06:52:25 +0000
1.20	09-Nov-2014	pooka	Move rump kernel man pages from various sources to sys/rump namely: * src/lib is used only when building for POSIX'y platforms, but the man pages have their use for all platforms * rumpuser.3 is a function of the rump kernel, not one of the of the POSIX'y implementation hosted in src/lib/librumpuser no functional change
1.19	24-Aug-2014	pooka	* attempt to clarify what "POSIX" means * link to Platforms page on wiki for a list of known implementation
1.18	20-Feb-2014	pooka	document rumpuser_kill()
1.17	14-Feb-2014	pooka	minor clarification: rumpuser_thread_create() is used to create the host thread context for kernel threads, never for application threads. per discussion with justin
1.16	22-Jul-2013	njoly	Use <major>.<minor> for NetBSD version.
1.15	15-May-2013	wiz	branches: 1.15.2; More markup, less typos.
1.14	15-May-2013	pooka	Improve documentation on the locking order of cv_wait mtx/cpu.
1.13	15-May-2013	pooka	Add a generalized rumpuser_syncfd() call which allows the caller to request a sync or a barrier for fd.
1.12	15-May-2013	pooka	Pass off_t over the hypercall interface as int64_t to avoid potential problems in setups where off_t doesn't want to be 64bit. I'm already excitedly waiting for 128bit off_t and _LARGE_LARGE_FILES
1.11	15-May-2013	pooka	Pass enums over the hypercall interface as ints to avoid some pathological scenarios from arising in setups where enums might be of a different size in the rump kernel and hypervisor.
1.10	15-May-2013	pooka	Add RUMPUSER_LWP_CLEAR instead of overloading RUMPUSER_LWP_SET. This simplifies some alternative hypervisor implementations.
1.9	03-May-2013	wiz	Fix some punctuation nits and bump date for previous.
1.8	02-May-2013	pooka	update for previous change
1.7	02-May-2013	pooka	Push rwlock upgrade and downgrade into the hypervisor where there's at least a chance to implement them with minimal fuss.
1.6	02-May-2013	pooka	Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.5	02-May-2013	pooka	add HISTORY
1.4	02-May-2013	pooka	expand the intended usage of rumpuser_open()
1.3	30-Apr-2013	pooka	document the hypercall interface
1.2	01-Mar-2010	pooka	branches: 1.2.6; 1.2.12; Join today's manpage mania by updating this to reflect the current situation a "little" better.
1.1	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.2.12.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.12.1	23-Jun-2013	tls	resync from head
1.2.6.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.15.2.1	23-Jul-2013	riastradh	sync with HEAD
1.68	24-Sep-2023	martin	PR kern/57626: instead of an (arbitrary) FAKE_PAGE_SHIFT (and always using 4k pages), query the hypervisor for the real page size of the host kernel and use that for architectures that do not have compile time constant page sizes.
1.67	16-Aug-2015	pooka	Fix return value inspection for clock_nanosleep() (not displayed in the diff, need to look at the entire file for context). from Robert Millan <rmh@freebsd.org> via rumpkernel-users
1.66	27-Jul-2015	pooka	Print the "halted\n" from previous commit to stdout, not stderr. The putchar hypercall writes to stdout, so this change restores the original "functionality" (which was not intended to change). from gson, via tests
1.65	24-Jul-2015	pooka	Since the rump kernel does not know when the container it's running in actually halts, print "halted" in the hypercall.
1.64	05-Nov-2014	pooka	check clock_gettime() rv
1.63	25-Jul-2014	justin	Clean up error handling in rumpuser_init()
1.62	22-Jul-2014	justin	Clean up random implementation for librumpuser Use /dev/urandom for platforms without arc4random, not srandom(), deduplicate code, do not read excessive random bytes Reviewed by pooka@
1.61	10-Jul-2014	justin	Reinstate include of netdb.h, needed on some cross builds
1.60	09-Jul-2014	justin	Split out file and memory access in librumpuser This allows alternate implementations to reuse these parts, and the file parts will at the next hypercall revision be moved to their own driver. Discussed with pooka@
1.59	02-Apr-2014	pooka	branches: 1.59.2; Always use sysconf() to query host processor count instead of separate tricks for each platform.
1.58	16-Mar-2014	njoly	Do not use uninitialized pointer if posix_memalign() fails.
1.57	20-Feb-2014	pooka	make implementation of rumpuser_kill() match the documentation
1.56	20-Feb-2014	pooka	Translate signal numbers between rump kernel and (POSIX) host.
1.55	27-Oct-2013	rmind	librumpuser: add some #ifdef __APPLE__ and missing bits to build it on OS X. OK pooka@
1.54	14-Aug-2013	pooka	Change the default value of rump kernels CPUs to 2. It used to be the number of host cores, but that value is overkill for most uses, especially with massively multicore hosts. Dozens of useless virtual CPUs are relatively speaking expensive in terms of bootstrap time and memory footprint. On the other end of the spectrum, defaulting to 2 might shake out some bugs from the qemu test runs.
1.53	15-May-2013	pooka	Add a generalized rumpuser_syncfd() call which allows the caller to request a sync or a barrier for fd.
1.52	15-May-2013	pooka	Pass off_t over the hypercall interface as int64_t to avoid potential problems in setups where off_t doesn't want to be 64bit. I'm already excitedly waiting for 128bit off_t and _LARGE_LARGE_FILES
1.51	15-May-2013	pooka	Pass enums over the hypercall interface as ints to avoid some pathological scenarios from arising in setups where enums might be of a different size in the rump kernel and hypervisor.
1.50	02-May-2013	pooka	Ok, maybe using int64 for nanoseconds in the (sec,nsec) tuple was a bit too future-proof. I think long is enough there (let's just hope nobody redefines "nano"). Also, make seconds signed just in case someone wants their clock to be in 1901.
1.49	01-May-2013	pooka	avoid Wunused on !NetBSD
1.48	30-Apr-2013	pooka	Flip parameter order in the clock hypercalls to make them consistent with everything else wrt in/out parameters.
1.47	30-Apr-2013	pooka	Translate error codes between the hypervisor and rump kernel.
1.46	30-Apr-2013	pooka	Some systems don't provide preadv/pwritev (hi Solaris!), so implement that with lseek + readv/writev instead (and avoid rewinding the pointer with soon-to-be documentation).
1.45	30-Apr-2013	pooka	Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.44	29-Apr-2013	pooka	Reduce hypercalls related to reading to essentially an amalgamation of readv and preadv. ditto for writing. Hypercalls are so seldomly used that it doesn't justify 3x the calls for syntactic sugar.
1.43	29-Apr-2013	pooka	Replace the various "get info from hypervisor" interfaces with one unified rumpuser_getparam(), and make it return a plist. The contents can come e.g. from the env or a config file. Make identifiers starting with an underscore denote system identifiers which must be implemented by hypervisor. (yea, j/k about the plist bit)
1.42	29-Apr-2013	pooka	The fsync hypercall is now used only with close, so get rid of it. rumpuser_bio() should do the necessary syncing.
1.41	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.40	29-Apr-2013	pooka	RUMPUSER_OPEN_DIRECT is no longer necessary
1.39	29-Apr-2013	pooka	changes to bio hypercalls, part 3/n: retire the filemmap/memsync hypercalls, they're no longer used
1.38	29-Apr-2013	pooka	Rework how the bio hypercalls work, part 1/n: Reduce the set of hypercalls to one: "do block i/o". This not only eliminates a lot of pseudo-duplicate code, it also gives the hypervisor a lot more freedom on how to optimize the i/o.
1.37	28-Apr-2013	pooka	don't need event.h here anymore
1.36	28-Apr-2013	pooka	Improve the time-related hypercalls so that's it's possible to sleep until an absolute time on the host's monotonic clock (should something like that be supported).
1.35	28-Apr-2013	pooka	make the file monitoring hypercalls private to shmif
1.34	28-Apr-2013	pooka	The ioctl hypercall is used only by the usb host controller driver, so make it exclusive to that component. I'm happy to see it gone.
1.33	27-Apr-2013	pooka	make the random hypercall more generic
1.32	27-Apr-2013	pooka	* treat kern_malloc.c as an unreal allocator (it's so lightweight) * get rid of the rumpuser_realloc() hypercall * pass size to rumpuser_free()
1.31	27-Apr-2013	pooka	rumpuser_poll() is used only by sockin, so make the hypercall private to that component.
1.30	27-Apr-2013	pooka	* integrate rumpuser_getversion() with the hypervisor initialization * rename some identifiers to better match reality
1.29	18-Mar-2013	pooka	Terminate result of readlink(). Makes writefilewatch_setup() work in cases when the buffer doesn't accidentally contain suitable zeroes. Thanks to Juan RP who debugged this with me!
1.28	14-Jan-2013	pooka	Use the /proc way for counting host cores on Cygwin.
1.27	10-Jan-2013	pooka	.. and make it compile on said platforms.
1.26	10-Jan-2013	pooka	Provide an implementation of writewatchfile for platforms without kqueue or inotify (it's a rather simple implementation ;)
1.25	14-Dec-2012	pooka	FreeBSD and DragonFly also provide hosts cpus via sysctl hw.ncpu.
1.24	13-Dec-2012	pooka	Apparently MAP_ANON mmap() on Linux requires MAP_PRIVATE to be specified for the addr parameter to have a sane effect. Make it so.
1.23	18-Nov-2012	pooka	Fixes for Solarisa.
1.22	14-Nov-2012	pooka	Check return value of ftruncate(). Some versions of gcc give warnings if I don't.
1.21	10-Oct-2012	pooka	Implement the writewatchfile routines for a Linux hypervisor. As a result, the shmif network driver now works when hosted on Linux.
1.20	14-Sep-2012	pooka	Do not assume that O_FOO flags have matching values in the rump kernel and hypervisor.
1.19	25-Aug-2012	pooka	branches: 1.19.2; Make librumphijack compile and work on Linux. Do not try to hijack calls which are not supported on Linux and therefore cannot be handled by the rump kernel side syscall emulation (not that they'd be present in the calling binaries anyway).
1.18	27-Jul-2012	pooka	Once again, make the rump kernel hypercall layer work on Linux.
1.17	25-Jun-2012	abs	Update old-style definitions to ANSI, remove a couple of register definitions along the way. Fixed gcc 4.1 build (thank you vax)
1.16	28-Nov-2011	tls	Remove arc4random() and arc4randbytes() from the kernel API. Replace arc4random() hacks in rump with stubs that call the host arc4random() to get numbers that are hopefully actually random (arc4random() keyed with stack junk is not). This should fix some of the currently failing anita tests -- we should no longer generate duplicate "random" MAC addresses in the test environment.
1.15	06-Feb-2011	pooka	branches: 1.15.4; Support query of the partition size in case underlying device is a wedge. This still lacks the proplibistic query of the sector size and just assumes 512. It's good that we make asking a file's size as simple as requiring one stat(), one open() and three (3) different ioctls plus some proplist mumbojumbo. I'm surprised it's available at all by means other than #wish. code mostly from Taylor R Campbell, rant from me.
1.14	22-Jan-2011	pooka	happiness is a quiet lint
1.13	20-Jan-2011	pooka	include pid of rump server in hostname
1.12	05-Jan-2011	pooka	branches: 1.12.2; Fix fd leak also in non-NetBSD code path.
1.11	05-Jan-2011	wiz	Fix fdleak in error case. Found by cppcheck.
1.10	15-Nov-2010	pooka	Make int *error and optional parameter (i.e. it can be NULL). Sometimes the caller just doesn't care which errno close() might throw.
1.9	11-Aug-2010	pooka	* if kevent() fails with EINTR, try again instead of returning an error * stuff rumpuser_dprintf to stderr instead of stdout
1.8	09-Jun-2010	pooka	Version rumpuser ABI with a lightweight mechanism.
1.7	09-Jun-2010	pooka	Add the ability to specify a preferred address the "map anon memory" hypercall.
1.6	02-Jun-2010	pooka	Check return value of posix_memalign ... always helpful to not return garbage memory in case of failure.
1.5	01-Jun-2010	pooka	Don't pass "canfail" down to rumpuser_malloc -- there's quite little we can do with that info way down there. Instead, pass alignment. Implement rumpuser_malloc() with posix_memalign().
1.4	28-Apr-2010	pooka	Add rumpuser interface to fetch number of host cpus.
1.3	21-Apr-2010	pooka	Actually, support rumpuser_kill() only on NetBSD, since signal numbers may not match on non-NetBSD hosts.
1.2	21-Apr-2010	pooka	Add rumpuser_kill, which sends a signal to a host process.
1.1	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.12.2.1	08-Feb-2011	bouyer	Sync with HEAD
1.15.4.5	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.15.4.4	23-Jan-2013	yamt	sync with head
1.15.4.3	16-Jan-2013	yamt	sync with (a bit old) head
1.15.4.2	30-Oct-2012	yamt	sync with head
1.15.4.1	17-Apr-2012	yamt	sync with head
1.19.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.19.2.3	23-Jun-2013	tls	resync from head
1.19.2.2	25-Feb-2013	tls	resync with head
1.19.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.59.2.1	10-Aug-2014	tls	Rebase.
1.10	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.9	25-Aug-2014	justin	Add errno translation for bio operations
1.8	16-Jun-2014	alnsn	Add __RCSID.
1.7	15-May-2013	pooka	branches: 1.7.2; 1.7.6; 1.7.8; Pass off_t over the hypercall interface as int64_t to avoid potential problems in setups where off_t doesn't want to be 64bit. I'm already excitedly waiting for 128bit off_t and _LARGE_LARGE_FILES
1.6	07-May-2013	pooka	include stdint.h before rumpuser.h (on some platforms it doesn't get there automagically)
1.5	29-Apr-2013	pooka	Create a kernel thread context for the bio upcalls.
1.4	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.3	29-Apr-2013	pooka	set default bio mode to threaded
1.2	29-Apr-2013	pooka	unschedule around blocking i/o
1.1	29-Apr-2013	pooka	Rework how the bio hypercalls work, part 1/n: Reduce the set of hypercalls to one: "do block i/o". This not only eliminates a lot of pseudo-duplicate code, it also gives the hypervisor a lot more freedom on how to optimize the i/o.
1.7.8.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.7.8.1	15-May-2013	yamt	file rumpuser_bio.c was added on branch yamt-pagecache on 2014-05-22 11:37:00 +0000
1.7.6.1	10-Aug-2014	tls	Rebase.
1.7.2.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.7.2.2	23-Jun-2013	tls	resync from head
1.7.2.1	15-May-2013	tls	file rumpuser_bio.c was added on branch tls-maxphys on 2013-06-23 06:21:08 +0000
1.2	14-Jul-2014	alnsn	Remove unused file.
1.1	17-Jun-2014	alnsn	Implement rumpuser_sync_icache hypercall.
1.6	07-May-2013	pooka	branches: 1.6.2; 1.6.8; include stdint.h before rumpuser.h (on some platforms it doesn't get there automagically)
1.5	30-Apr-2013	pooka	Translate error codes between the hypervisor and rump kernel.
1.4	29-Apr-2013	pooka	Give private hypercalls the ability to meddle with kthread contexts too.
1.3	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.2	27-Apr-2013	pooka	* integrate rumpuser_getversion() with the hypervisor initialization * rename some identifiers to better match reality
1.1	01-Mar-2013	pooka	Add interfaces that out-of-librumpuser hypercalls can use to unschedule and reschedule themselves if they plan to block.
1.6.8.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.6.8.1	07-May-2013	yamt	file rumpuser_component.c was added on branch yamt-pagecache on 2014-05-22 11:37:00 +0000
1.6.2.2	23-Jun-2013	tls	resync from head
1.6.2.1	07-May-2013	tls	file rumpuser_component.c was added on branch tls-maxphys on 2013-06-23 06:21:08 +0000
1.3	30-Apr-2013	pooka	branches: 1.3.2; 1.3.8; Translate error codes between the hypervisor and rump kernel.
1.2	29-Apr-2013	pooka	Give private hypercalls the ability to meddle with kthread contexts too.
1.1	01-Mar-2013	pooka	Add interfaces that out-of-librumpuser hypercalls can use to unschedule and reschedule themselves if they plan to block.
1.3.8.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.3.8.1	30-Apr-2013	yamt	file rumpuser_component.h was added on branch yamt-pagecache on 2014-05-22 11:37:00 +0000
1.3.2.2	23-Jun-2013	tls	resync from head
1.3.2.1	30-Apr-2013	tls	file rumpuser_component.h was added on branch tls-maxphys on 2013-06-23 06:21:08 +0000
1.5	16-Oct-2024	ozaki-r	librumpuser: regen (autoreconf -iv)
1.4	05-Mar-2015	pooka	branches: 1.4.28; check for utimensat
1.3	05-Nov-2014	pooka	check for clock_gettime from librt too
1.2	05-Nov-2014	pooka	actually check for clock_nanosleep()
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.4.28.1	02-Aug-2025	perseant	Sync with HEAD
1.10	04-Apr-2024	riastradh	Temporarily make PR t_sp:sigsafe noisier. This is an attempt to diagnose why it's flaky in the releng testbeds but not when I run it. This change will be backed out once we get new testbed output.
1.9	04-Apr-2024	riastradh	rumpuser(3): New RUMP_STDOUT, RUMP_STDERR environment variables. If set, then when rump daemonizes, it opens the path in RUMP_STDOUT and redirects fd 1 to that (which mostly gets the kernel console output), and opens the path in RUMP_STDERR and redirects fd 2 to that (no idea what this gets but it's probably good to record if it ever gets anything). This will allow tests that rely on rump_server daemons to stash the output for diagnostics in case, e.g., the rump kernel crashes. PR bin/58112
1.8	03-Aug-2023	andvar	fix typos in comments and one definition, mainly s/sucket/socket/.
1.7	04-Nov-2014	pooka	branches: 1.7.26; Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.6	07-May-2013	pooka	include stdint.h before rumpuser.h (on some platforms it doesn't get there automagically)
1.5	30-Apr-2013	pooka	Translate error codes between the hypervisor and rump kernel.
1.4	18-Nov-2012	pooka	Fixes for Solarisa.
1.3	27-Jul-2012	pooka	branches: 1.3.2; Once again, make the rump kernel hypercall layer work on Linux.
1.2	22-Jan-2011	pooka	branches: 1.2.4; shush lint
1.1	30-Nov-2010	pooka	branches: 1.1.2; Require server to be explicitly initialized with rump_init_server(url). Also, add rump_daemonize_begin() / rump_daemonize_end() to help with the "can't daemon() after pthread_create()" problem. Applications could accomplish the same, but since it's such a common operation, provide a little help.
1.1.2.1	08-Feb-2011	bouyer	Sync with HEAD
1.2.4.3	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.4.2	16-Jan-2013	yamt	sync with (a bit old) head
1.2.4.1	30-Oct-2012	yamt	sync with head
1.3.2.2	23-Jun-2013	tls	resync from head
1.3.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.7.26.1	11-Sep-2024	martin	Pull up following revision(s) (requested by rin in ticket #824): lib/librumpuser/rumpuser_daemonize.c: revision 1.9 lib/librumpuser/rumpuser_daemonize.c: revision 1.10 rumpuser(3): New RUMP_STDOUT, RUMP_STDERR environment variables. If set, then when rump daemonizes, it opens the path in RUMP_STDOUT and redirects fd 1 to that (which mostly gets the kernel console output), and opens the path in RUMP_STDERR and redirects fd 2 to that (no idea what this gets but it's probably good to record if it ever gets anything). This will allow tests that rely on rump_server daemons to stash the output for diagnostics in case, e.g., the rump kernel crashes. PR bin/58112
1.34	19-Apr-2022	rillig	lib: remove CONSTCOND comment Since 2021-01-31, lint doesn't need it anymore for the common pattern of 'do ... while (0)'.
1.33	22-Mar-2020	pgoyette	Teach rump to process __link_set_evcnts entries. (Second part of fix for PR kern/55088)
1.32	21-Mar-2020	pgoyette	Teach rump how to process __link_set_sysctl_funcs so it can handle modules the same as a real kernel. Partly addresses PR kern/55088 - __link_set_evcnts not yet handled (that will happen later)
1.31	26-Dec-2019	msaitoh	s/lenght/length/
1.30	04-Nov-2014	pooka	branches: 1.30.16; Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.29	27-Apr-2014	pooka	weak alias removal implication: rumpuser_dl_globalsym() can now sleep with the fishes.
1.28	02-Apr-2014	justin	branches: 1.28.2; Add Android support for rump kernel. Reviewed by pooka@
1.27	14-Mar-2014	justin	If dlopen returns NULL assume we are statically linked and return, rather than getting a warning when dlinfo fails.
1.26	13-Mar-2014	pooka	Do not process linkmaps if there is exactly one link map present (i.e. there is no ld.so). Makes statically linked rump kernels work on glibc (at least for me). based on some discussion with Justin Cormack
1.25	30-Oct-2013	pooka	Oh, stdint.h isn't written with a comma ...
1.24	30-Oct-2013	pooka	need to include stdint.h before rump/rumpuser.h
1.23	30-Oct-2013	pooka	glibc on MIPS uses the same DYN d_ptr variant as NetBSD and musl. from Justin Cormack
1.22	27-Oct-2013	rmind	librumpuser: add some #ifdef __APPLE__ and missing bits to build it on OS X. OK pooka@
1.21	30-Jul-2013	pooka	comment polish: just musl
1.20	30-Jul-2013	pooka	Decide ET_DYN behavior based on __GLIBC__ instead of __linux__, e.g. musl libc doesn't follow glibc behavior. per discussions with a number of people
1.19	04-Jun-2013	pooka	FreeBSD does the Solaris-like map->l_addr boogie. from Ben Gras
1.18	29-Apr-2013	pooka	Make rumpuser_dl_bootstrap() optional for platforms which don't provide dynamic linking.
1.17	20-Mar-2013	pooka	Attempt two for the previous: _ILP32 comes from headers, so don't use it to decide if we want to muddle with _FILE_OFFSET_BITS.
1.16	20-Mar-2013	pooka	Use _FILE_OFFSET_BITS=64 on Solaris too (necessary for 32bit builds).
1.15	12-Mar-2013	pooka	DragonFly is in the Solaris camp in the "how to access ELF DYN at runtime" valley of joy and love.
1.14	09-Mar-2013	pooka	Tiny fix for Solaris.
1.13	08-Mar-2013	pooka	Ensure that rump kernel component constructors from the main object get processed. This applies to ones which were linked statically. Unfortunately, that's where it got a bit tricky, since the dlsym() interface searches the handle and all its dependencies. For the main object the list of dependencies includes all the dynamic rump kernel components that were included when the binary is linked. So, a long story short, make only one pass through the objects to harvest all the component entries, weed out the dupes, and initialize components from an in-memory dupe-free list when so requested.
1.12	14-Jan-2013	pooka	Support Cygwin as a hypervisor.
1.11	11-Dec-2012	pooka	Support binaries which use DT_GNU_HASH instead of DT_HASH.
1.10	26-Nov-2012	pooka	Support DragonFly BSD.
1.9	26-Nov-2012	pooka	const poison is the cure
1.8	27-Jul-2012	pooka	branches: 1.8.2; Once again, make the rump kernel hypercall layer work on Linux.
1.7	22-Mar-2011	pooka	branches: 1.7.4; make work on nb5 again
1.6	16-Mar-2011	njoly	Convert hashtab to Elf_Symindx type, and use it directly to get symbol count. Remove now unused GETVECWORDn macro. This is needed to make it work on alpha which use non-standard 64bit values for the symbol hash table section, unlike all other archs.
1.5	30-Dec-2010	pooka	Allow rump kernel to call dlsym(RTLD_DEFAULT).
1.4	08-Jun-2010	pooka	Allow loading the symbols from objects which are not directly mapped into memory, namely the main object (i.e. map->l_addr is NULL).
1.3	05-Mar-2010	pooka	During bootstrap, process all modinfos in a DSO in one go. Get rid of dependency tricks, since they are no longer necessary.
1.2	01-Mar-2010	pooka	Introduce RUMP_COMPONENT. It behaves mostly like a simplified module which is linked into the kernel and cannot be unloaded. The main purpose is to get the proper constructors run and create any /dev nodes necessary for said component. Once more of the kernel (e.g. networking stack and device drivers) are converted to MODULE and devfs pops up from somewhere, rump components can be retired.
1.1	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.7.4.4	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.7.4.3	23-Jan-2013	yamt	sync with head
1.7.4.2	16-Jan-2013	yamt	sync with (a bit old) head
1.7.4.1	30-Oct-2012	yamt	sync with head
1.8.2.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.8.2.2	23-Jun-2013	tls	resync from head
1.8.2.1	25-Feb-2013	tls	resync with head
1.28.2.1	10-Aug-2014	tls	Rebase.
1.30.16.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.1	30-Apr-2013	pooka	branches: 1.1.2; 1.1.8; Translate error codes between the hypervisor and rump kernel.
1.1.8.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.8.1	30-Apr-2013	yamt	file rumpuser_errtrans.c was added on branch yamt-pagecache on 2014-05-22 11:37:00 +0000
1.1.2.2	23-Jun-2013	tls	resync from head
1.1.2.1	30-Apr-2013	tls	file rumpuser_errtrans.c was added on branch tls-maxphys on 2013-06-23 06:21:08 +0000
1.5	16-Oct-2024	ozaki-r	librumpuser: use preadv/pwritev if available Because Calling lseek then readv/writev is racy.
1.4	04-Nov-2014	pooka	branches: 1.4.28; More finegrained disklabel macro checks, for FreeBSD
1.3	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.2	24-Aug-2014	pooka	RCS Id police (because we can. or have you heard of git id police?)
1.1	09-Jul-2014	justin	branches: 1.1.2; 1.1.6; Split out file and memory access in librumpuser This allows alternate implementations to reuse these parts, and the file parts will at the next hypercall revision be moved to their own driver. Discussed with pooka@
1.1.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.6.1	09-Jul-2014	tls	file rumpuser_file.c was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.1.2.2	10-Aug-2014	tls	Rebase.
1.1.2.1	09-Jul-2014	tls	file rumpuser_file.c was added on branch tls-earlyentropy on 2014-08-10 06:52:26 +0000
1.4.28.1	02-Aug-2025	perseant	Sync with HEAD
1.11	19-Apr-2022	rillig	lib: remove CONSTCOND comment Since 2021-01-31, lint doesn't need it anymore for the common pattern of 'do ... while (0)'.
1.10	22-Jul-2014	justin	Clean up random implementation for librumpuser Use /dev/urandom for platforms without arc4random, not srandom(), deduplicate code, do not read excessive random bytes Reviewed by pooka@
1.9	20-Feb-2014	pooka	branches: 1.9.2; remember to commit this file too
1.8	30-Apr-2013	pooka	Translate error codes between the hypervisor and rump kernel.
1.7	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.6	29-Apr-2013	pooka	Rework how the bio hypercalls work, part 1/n: Reduce the set of hypercalls to one: "do block i/o". This not only eliminates a lot of pseudo-duplicate code, it also gives the hypervisor a lot more freedom on how to optimize the i/o.
1.5	27-Apr-2013	pooka	* integrate rumpuser_getversion() with the hypervisor initialization * rename some identifiers to better match reality
1.4	15-Nov-2010	pooka	branches: 1.4.6; 1.4.12; Make int *error and optional parameter (i.e. it can be NULL). Sometimes the caller just doesn't care which errno close() might throw.
1.3	18-May-2010	pooka	Make it possible to use the scheduler lock as the rumpuser condvar interlock. This is applicable in cases where the actual interlock is the CPU the currently running thread is scheduled on. Borrowing the scheduler lock as the mutex mandated by pthread_cond_wait() does away with need to have an additional mutex. This both optimizes runtime execution and simplifies code, as the extra lock typically lead to quite some trickeries to avoid the dungeon collapsing due to zaps from the wand of deadlock.
1.2	22-Mar-2010	pooka	Wrap DOCALL and DOCALL_KLOCK in a new block (for easy adding of debug prints before them. XXX: can't use the standard do-while0 because lint doesn't like it.
1.1	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.4.12.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.4.12.1	23-Jun-2013	tls	resync from head
1.4.6.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.9.2.1	10-Aug-2014	tls	Rebase.
1.2	24-Aug-2014	pooka	RCS Id police (because we can. or have you heard of git id police?)
1.1	09-Jul-2014	justin	branches: 1.1.2; 1.1.6; Split out file and memory access in librumpuser This allows alternate implementations to reuse these parts, and the file parts will at the next hypercall revision be moved to their own driver. Discussed with pooka@
1.1.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.6.1	09-Jul-2014	tls	file rumpuser_mem.c was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.1.2.2	10-Aug-2014	tls	Rebase.
1.1.2.1	09-Jul-2014	tls	file rumpuser_mem.c was added on branch tls-earlyentropy on 2014-08-10 06:52:26 +0000
1.4	18-Mar-2013	pooka	Move the rumpuser_net set of hypercalls to be a private to the sockin component. This cleans up the generic hypercall interfaces from ones specific to only one component. They should always have been private, but the infrastructure to "make it so" didn't exist earlier. no functional change
1.3	27-Jul-2012	pooka	branches: 1.3.2; Once again, make the rump kernel hypercall layer work on Linux.
1.2	15-Nov-2010	pooka	branches: 1.2.6; Make int *error and optional parameter (i.e. it can be NULL). Sometimes the caller just doesn't care which errno close() might throw.
1.1	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.2.6.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.6.1	30-Oct-2012	yamt	sync with head
1.3.2.1	23-Jun-2013	tls	resync from head
1.54	16-Oct-2024	ozaki-r	librumpuser/rumpuser_port.h: import new flags for NetBSD
1.53	14-Jul-2023	lukem	branches: 1.53.2; fix rump URLs Link to https://github.com/rumpkernel/ instead of a site now taken over by an SEO squatter. Per discussion on github.com/rumpkernel issues with pooka. PR misc/57501
1.52	19-Apr-2022	rillig	branches: 1.52.2; lib: remove CONSTCOND comment Since 2021-01-31, lint doesn't need it anymore for the common pattern of 'do ... while (0)'.
1.51	03-Apr-2021	simonb	For MIPS N32, register_t needs to be uint64_t as "long" isn't big enough.
1.50	11-May-2017	martin	Evil hack to fix the build: provide PRIxREGISTER here. Sevan, please check and fix correctly ;-)
1.49	11-May-2017	sevan	Update NetBSD values obtained from running configure as instructed in comment. This paves the way to resolve rump build process using buildrump.sh, where the definition of HAVE_REGISTER_T caused conflicting definitions of register_t.
1.48	12-Jan-2017	christos	branches: 1.48.4; Don't go redefining system constants, without checking if the system provides them.
1.47	07-Nov-2015	nros	branches: 1.47.2; Add the C11 function aligned_alloc to libc.
1.46	21-Sep-2015	pooka	Add more compat defs for code compiled for !NetBSD targets. At least GNU Hurd lacks MAXHOSTNAMELEN/MAXPATHLEN/PATH_MAX, so make sure those have some arbitrary semi-sane values. from Robert Millan in PR misc/50166, with some modifications from myself
1.45	16-Aug-2015	pooka	Hurd support, part 1 from Robert Millan <rmh@gnu.org> via rumpkernel-users
1.44	05-Mar-2015	pooka	check for utimensat
1.43	17-Jan-2015	justin	Remove no longer required definitions
1.42	10-Nov-2014	pooka	work around c11 visibility problems on some version(s) of FreeBSD
1.41	10-Nov-2014	pooka	Just _GNU_SOURCE should be enough to expose everything necessary on Linux
1.40	05-Nov-2014	justin	Add some prototypes for Android rump kernel builds See buildrump.sh #70, some Android versins are missing prototypes for these libc functions
1.39	05-Nov-2014	pooka	fix clock_gettime emulation
1.38	05-Nov-2014	pooka	update for NetBSD-current having clock_nanosleep
1.37	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.36	07-Oct-2014	justin	Canonical Minix check as pointed out by Marc
1.35	29-Sep-2014	justin	Minix also has getenv_r support
1.34	22-Jul-2014	justin	Clean up random implementation for librumpuser Use /dev/urandom for platforms without arc4random, not srandom(), deduplicate code, do not read excessive random bytes Reviewed by pooka@
1.33	17-Jun-2014	justin	Applications are not supposed to and do not need to include <features.h> explicitly
1.32	02-Apr-2014	justin	branches: 1.32.2; Add Android support for rump kernel. Reviewed by pooka@
1.31	21-Mar-2014	pooka	fix name of HAVE_PTHREAD_SETNAME_3
1.30	21-Mar-2014	pooka	use a probe result to decide which pthread_setname_np() to use
1.29	25-Feb-2014	pooka	emulate printflike properly to avoid fatal error on clang
1.28	16-Jan-2014	pooka	Do not force _FILE_OFFSET_BITS=64 here. It's no longer strictly speaking required (rumpuser interface no longer uses off_t) and force-defining it causes foo() to magically become foo64() on glibc (even on 64bit platforms).
1.27	15-Jan-2014	pooka	Make setprogname() a nop where it's not supported.
1.26	08-Jan-2014	pooka	remove obsolete definitions
1.25	08-Jan-2014	pooka	do as the comment says and #if defined(every_other) \|\| defined(platform) \|\| ... ===> #if !defined(__NetBSD__)
1.24	08-Jan-2014	pooka	OpenBSD support from Justin Cormack via github
1.23	18-Dec-2013	pooka	remove outdated comment (since quite a few months ago)
1.22	27-Oct-2013	rmind	librumpuser: add some #ifdef __APPLE__ and missing bits to build it on OS X. OK pooka@
1.21	10-Sep-2013	pooka	more platform-specific qualifiers
1.20	22-Jul-2013	pooka	TIMEVAL_TO_TIMESPEC (for musl) from Justin Cormack
1.19	20-Jul-2013	pooka	Fixes when compiling against musl libc. from Justin Cormack via private email
1.18	28-Apr-2013	pooka	branches: 1.18.2; Improve the time-related hypercalls so that's it's possible to sleep until an absolute time on the host's monotonic clock (should something like that be supported).
1.17	27-Apr-2013	pooka	make the random hypercall more generic
1.16	20-Mar-2013	pooka	Attempt two for the previous: _ILP32 comes from headers, so don't use it to decide if we want to muddle with _FILE_OFFSET_BITS.
1.15	20-Mar-2013	pooka	Use _FILE_OFFSET_BITS=64 on Solaris too (necessary for 32bit builds).
1.14	14-Mar-2013	pooka	Refine previous: sys/sysmacros.h is where MIN/MAX comes from on Solaris, so it needs to be included unconditionally.
1.13	14-Mar-2013	pooka	StunOS >= 5.11 has posix_memalign(), so add an additional constraint for when we need to emulate it with memalign() and when not.
1.12	17-Jan-2013	pooka	Include sys/sysmacros.h on solaris for MIN/MAX.
1.11	14-Jan-2013	pooka	Support Cygwin as a hypervisor.
1.10	26-Nov-2012	pooka	fix previous
1.9	26-Nov-2012	pooka	One more thing required by DragonFly
1.8	26-Nov-2012	pooka	FreeBSD fixes. from philip@freebsd.org
1.7	26-Nov-2012	pooka	Since SA_SETLEN() is used only for sockaddr_in, convert it to SIN_SETLEN() to avoid compiler whining on breaking strict aliasing rules.
1.6	22-Nov-2012	pooka	satisfy the slightly more picky clang
1.5	21-Nov-2012	pooka	export register_t to rump kernel users on solaris
1.4	18-Nov-2012	pooka	Fixes for Solarisa.
1.3	03-Sep-2012	pooka	branches: 1.3.2; 1.3.4; More fixes for Linux (or glibc, really).
1.2	25-Aug-2012	pooka	Make librumphijack compile and work on Linux. Do not try to hijack calls which are not supported on Linux and therefore cannot be handled by the rump kernel side syscall emulation (not that they'd be present in the calling binaries anyway).
1.1	27-Jul-2012	pooka	Once again, make the rump kernel hypercall layer work on Linux.
1.3.4.5	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.3.4.4	23-Jan-2013	yamt	sync with head
1.3.4.3	16-Jan-2013	yamt	sync with (a bit old) head
1.3.4.2	30-Oct-2012	yamt	sync with head
1.3.4.1	03-Sep-2012	yamt	file rumpuser_port.h was added on branch yamt-pagecache on 2012-10-30 18:59:17 +0000
1.3.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.3.2.3	23-Jun-2013	tls	resync from head
1.3.2.2	25-Feb-2013	tls	resync with head
1.3.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.18.2.1	23-Jul-2013	riastradh	sync with HEAD
1.32.2.1	10-Aug-2014	tls	Rebase.
1.47.2.1	20-Mar-2017	pgoyette	Sync with HEAD
1.48.4.1	19-May-2017	pgoyette	Resolve conflicts from previous merge (all resulting from $NetBSD keywork expansion)
1.52.2.1	20-Sep-2024	martin	Pull up following revision(s) (requested by rin in ticket #889): lib/librumpuser/configure.ac: revision 1.6 lib/librumpuser/rumpuser_port.h: revision 1.53 lib/libpthread/Makefile: revision 1.97 sys/rump/share/man/man3/rumpuser.3: revision 1.4 sys/rump/share/man/man7/rumpkernel.7: revision 1.4 sys/rump/share/man/man7/rumpkernel.7: revision 1.5 fix rump URLs in man pages Link to https://github.com/rumpkernel/wiki/wiki instead of a site now taken over by an SEO squatter. Per discussion on github.com/rumpkernel issues with pooka. PR misc/57501 fix rump URLs Link to https://github.com/rumpkernel/ instead of a site now taken over by an SEO squatter. Per discussion on github.com/rumpkernel issues with pooka. PR misc/57501 use rumpkernel.github.io as the entry point
1.53.2.1	02-Aug-2025	perseant	Sync with HEAD
1.46	27-Dec-2017	ozaki-r	Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels.
1.45	18-Sep-2015	pooka	branches: 1.45.8; Fix typos to match values from rumpuser_config.h from Hajime Tazaki via rumpkernel-users
1.44	16-Dec-2014	pooka	With glibc on ARM kthread_exit() aborts because pthread_exit() fails to unwind the stack. Add a temporary workaround where we simply don't allow the thread to exit (a kernel thread exit is a relatively uncommon event in a rump kernel anyway).
1.43	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.42	23-Jun-2014	pooka	Hrmph, revert previous pending another fix. I tested it yesterday with a slightly older tree, and of course it doesn't work anymore ...
1.41	22-Jun-2014	pooka	Wrap pthread_create(). Shouldn't really have a functional effect, apart from testing that rumpuser_thread_create() can actually survive an unschedule/schedule cycle (which may or may not be necessary with other hypercall implementations).
1.40	02-Apr-2014	justin	branches: 1.40.2; Add Android support for rump kernel. Reviewed by pooka@
1.39	21-Mar-2014	pooka	fix braces
1.38	21-Mar-2014	pooka	use a probe result to decide which pthread_setname_np() to use
1.37	21-Mar-2014	pooka	set threadname for correct pthread_t
1.36	10-Mar-2014	justin	Revert conversion to __thread as breaks on archs without TLS support
1.35	09-Mar-2014	justin	Use __thread rather than pthread_getspecific for rumpuser curlwp. This has better performance and curlwp is a performance bottleneck in rump kernel code.
1.34	27-Oct-2013	rmind	librumpuser: add some #ifdef __APPLE__ and missing bits to build it on OS X. OK pooka@
1.33	26-Sep-2013	rmind	Give RUMP mutex and rwlock their own cache-line. Also give a separate cache-line for the rwlock's reader counter.
1.32	24-Sep-2013	rmind	rumpuser_rwlock: replace internal pthread_spin_lock (for protecting reader count) with atomic operations. As pthread_spin_lock is not adaptive lock, it can have hugely negative impact if contended here, especially with priority inversions. Now contended rwlock(9) no longer falls flat in RUMP kernels.
1.31	23-Sep-2013	pooka	If pthread_create() fails with EAGAIN, try a few more times with short sleeps in between. If it helps, good. If it doesn't, oh well, at least we tried. pthread_create() returning EAGAIN has been observed in real life at least on Linux (buildrump.sh issue #40)
1.30	15-May-2013	pooka	Pass enums over the hypercall interface as ints to avoid some pathological scenarios from arising in setups where enums might be of a different size in the rump kernel and hypervisor.
1.29	15-May-2013	pooka	Add RUMPUSER_LWP_CLEAR instead of overloading RUMPUSER_LWP_SET. This simplifies some alternative hypervisor implementations.
1.28	05-May-2013	pooka	Initialize rw->downgrade when allocating a rwlock. should/might/etc fix recent test hangs reported by martin & pgoyette
1.27	03-May-2013	pooka	Support proper rw_downgrade() semantics.
1.26	02-May-2013	pooka	reorder for better locality. no functional change.
1.25	02-May-2013	pooka	Push rwlock upgrade and downgrade into the hypervisor where there's at least a chance to implement them with minimal fuss.
1.24	02-May-2013	pooka	Retry enabling spin mutexes. We should be able to avoid poking the scheduler by just making wakeup from cv_wait() honor the same locking order as when a spin mutex is acquired though mutex_enter(). fingers crossed
1.23	02-May-2013	pooka	Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.22	02-May-2013	pooka	Clear rwlock's "writer" field when releasing the lock. Otherwise it might have been possible for "readers" to reach visibility before "writer" when another CPU took the lock, thus leading the previous owner to incorrectly think that it still owned the lock in rw_write_held(). Also, remove duplicate clause from assert().
1.21	30-Apr-2013	pooka	In kthread_create(), pass the priority and cpu index down to the rump kernel hypervisor (though the current implementation doesn't take advantage of them).
1.20	30-Apr-2013	pooka	Translate error codes between the hypervisor and rump kernel.
1.19	30-Apr-2013	pooka	Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.18	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.17	29-Apr-2013	pooka	Rework how the bio hypercalls work, part 1/n: Reduce the set of hypercalls to one: "do block i/o". This not only eliminates a lot of pseudo-duplicate code, it also gives the hypervisor a lot more freedom on how to optimize the i/o.
1.16	28-Apr-2013	pooka	Change rumpuser_cv_timedwait() from absolute time to relative time. It's then the hypervisor's problem to translate it accordingly. Now we no longer have to worry about the kernel having to know the hypervisor's time and vice versa.
1.15	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.14	27-Apr-2013	pooka	* integrate rumpuser_getversion() with the hypervisor initialization * rename some identifiers to better match reality
1.13	27-Apr-2013	pooka	Try to make sure that the appropriate calls to mutex_enter() takes a spin mutex (i.e. does not relinquish cpu context while trying to take the mutex). Bump the hypercall interface version number. I'll be doing a bunch of other cleanups to simplify the interface for the benefit of alternative hypervisor implementations. I'll be riding this bump and doing a second one only after I'm finished with all of the changes.
1.12	11-Feb-2013	pooka	As reported by several people, the signature of pthread_setname_np() varies from one Linux distro to another (didn't suspect it to be that _np). Comment out the call on Linux pending autoconf support.
1.11	14-Jan-2013	pooka	Support Cygwin as a hypervisor.
1.10	26-Nov-2012	pooka	PTHREAD_PROCESS_SHARED private doesn't seem to work on DragonFly, so init the spin lock _PRIVATE (we don't really care which it is).
1.9	08-Oct-2012	pooka	call pthread_setname_np() on Linux too.
1.8	27-Jul-2012	pooka	branches: 1.8.2; Once again, make the rump kernel hypercall layer work on Linux.
1.7	05-Feb-2011	yamt	branches: 1.7.4; fix indent. no functional changes.
1.6	01-Dec-2010	pooka	branches: 1.6.2; implement mutex_owner()
1.5	01-Dec-2010	pooka	Umm, delete recursive mutex interface instead of renaming it.
1.4	01-Dec-2010	pooka	Track lwp as the rumpuser mutex owner instead of pthread_t (this is done in rumpuser for simplicity, since on the kernel side things we assume we have only one pointer of space). As a side-effect, we can no longer know if the current thread is holding on to a mutex locked without curlwp context (basically all mutexes inited outside of mutex_init()). The only thing that called rumpuser_mutex_held() for a non-kmutex was the giant lock. So, instead implement recursive locking for the giant lock in the rump kernel and get rid of the now-unused recursive pthread mutex in the hypercall interface.
1.3	31-May-2010	pooka	Support KTHREAD_JOINABLE/kthread_join(). Also fixes earlier bug where all pthreads were created non-detached.
1.2	18-May-2010	pooka	Make it possible to use the scheduler lock as the rumpuser condvar interlock. This is applicable in cases where the actual interlock is the CPU the currently running thread is scheduled on. Borrowing the scheduler lock as the mutex mandated by pthread_cond_wait() does away with need to have an additional mutex. This both optimizes runtime execution and simplifies code, as the extra lock typically lead to quite some trickeries to avoid the dungeon collapsing due to zaps from the wand of deadlock.
1.1	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.6.2.1	08-Feb-2011	bouyer	Sync with HEAD
1.7.4.4	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.7.4.3	23-Jan-2013	yamt	sync with head
1.7.4.2	16-Jan-2013	yamt	sync with (a bit old) head
1.7.4.1	30-Oct-2012	yamt	sync with head
1.8.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.8.2.3	23-Jun-2013	tls	resync from head
1.8.2.2	25-Feb-2013	tls	resync with head
1.8.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.40.2.1	10-Aug-2014	tls	Rebase.
1.45.8.1	13-Jan-2018	snj	Pull up following revision(s) (requested by ozaki-r in ticket #495): lib/librumpuser/rumpfiber.c: revision 1.13 lib/librumpuser/rumpuser_pth.c: revision 1.46 lib/librumpuser/rumpuser_pth_dummy.c: revision 1.18 sys/kern/kern_condvar.c: revision 1.40 sys/kern/kern_lock.c: revision 1.161 sys/kern/kern_mutex.c: revision 1.68 sys/kern/kern_rwlock.c: revision 1.48 sys/rump/include/rump/rumpuser.h: revision 1.115 sys/rump/librump/rumpkern/locks.c: revision 1.76-1.79 Apply C99-style struct initialization to lockops_t -- Tweak LOCKDEBUG macros (NFC) -- Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels. -- rump: check if the mutex is surely owned by the caller in mutex_exit Unlocking a not-owned mutex wasn't detected well (it could detect if the mutex is not held by anyone but that's not enough). Let's check it (the check is the same as normal kernel's mutex). If LOCKDEBUG is enabled, give the check over LOCKDEBUG because it can provide better debugging information.
1.19	18-Aug-2025	andvar	s/flgas/flags/ in rumpuser_mutex_init() second argument name. No functional changes intended.
1.18	27-Dec-2017	ozaki-r	Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels.
1.17	17-Jun-2014	alnsn	branches: 1.17.16; For consistency with other files in the same directory don't include <sys/cdefs.h> before __RCSID.
1.16	15-May-2013	pooka	branches: 1.16.4; Pass enums over the hypercall interface as ints to avoid some pathological scenarios from arising in setups where enums might be of a different size in the rump kernel and hypervisor.
1.15	07-May-2013	pooka	need the rw_downgrade/tryupgrade methods too
1.14	07-May-2013	pooka	update to recent interface changes
1.13	02-May-2013	pooka	Inform the rump kernel hypervisor of valid thread contexts so that the implementation can allocate and release storage for them in an optimal fashion, if necessary.
1.12	30-Apr-2013	pooka	make this build/work again
1.11	30-Apr-2013	pooka	In kthread_create(), pass the priority and cpu index down to the rump kernel hypervisor (though the current implementation doesn't take advantage of them).
1.10	27-Apr-2013	pooka	roll mutex init hypercalls into one (one of them already took a flag anyway)
1.9	27-Apr-2013	pooka	* integrate rumpuser_getversion() with the hypervisor initialization * rename some identifiers to better match reality
1.8	27-Apr-2013	pooka	Try to make sure that the appropriate calls to mutex_enter() takes a spin mutex (i.e. does not relinquish cpu context while trying to take the mutex). Bump the hypercall interface version number. I'll be doing a bunch of other cleanups to simplify the interface for the benefit of alternative hypervisor implementations. I'll be riding this bump and doing a second one only after I'm finished with all of the changes.
1.7	06-Nov-2012	pooka	Actually define the klock/unlock pointers. Not having the storage allocated for them created "interesting" effects with one compiler setup.
1.6	06-Nov-2012	pooka	one more routine
1.5	02-Nov-2012	pooka	implement mutex_owner()
1.4	02-Nov-2012	pooka	need rumpuser_mutex_init_kmutex() these days
1.3	02-Nov-2012	pooka	Start restoring the ability to run rump kernels on non-threading hypervisors. Step 1: make this compile again (it's not complete, but at least it compiles).
1.2	23-May-2011	joerg	branches: 1.2.4; 1.2.10; Ensure that rumpuser_thread_exit doesn't return.
1.1	26-Feb-2010	pooka	librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.2.10.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.10.2	23-Jun-2013	tls	resync from head
1.2.10.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.2.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.2.4.1	16-Jan-2013	yamt	sync with (a bit old) head
1.16.4.1	10-Aug-2014	tls	Rebase.
1.17.16.1	13-Jan-2018	snj	Pull up following revision(s) (requested by ozaki-r in ticket #495): lib/librumpuser/rumpfiber.c: revision 1.13 lib/librumpuser/rumpuser_pth.c: revision 1.46 lib/librumpuser/rumpuser_pth_dummy.c: revision 1.18 sys/kern/kern_condvar.c: revision 1.40 sys/kern/kern_lock.c: revision 1.161 sys/kern/kern_mutex.c: revision 1.68 sys/kern/kern_rwlock.c: revision 1.48 sys/rump/include/rump/rumpuser.h: revision 1.115 sys/rump/librump/rumpkern/locks.c: revision 1.76-1.79 Apply C99-style struct initialization to lockops_t -- Tweak LOCKDEBUG macros (NFC) -- Distinguish spin mutex and adaptive mutex on rump kernels for LOCKDEBUG Formerly rump kernels treated the two types of mutexes as both adaptive for LOCKDEBUG for some reasons. Now we can detect violations of mutex restrictions on rump kernels such as taking an adaptive mutex with holding a spin mutex as well as normal kernels. -- rump: check if the mutex is surely owned by the caller in mutex_exit Unlocking a not-owned mutex wasn't detected well (it could detect if the mutex is not held by anyone but that's not enough). Let's check it (the check is the same as normal kernel's mutex). If LOCKDEBUG is enabled, give the check over LOCKDEBUG because it can provide better debugging information.
1.4	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.3	24-Aug-2014	pooka	RCS Id police (because we can. or have you heard of git id police?)
1.2	25-Jul-2014	justin	branches: 1.2.2; 1.2.6; Clean up error handling in rumpuser_init()
1.1	22-Jul-2014	justin	Clean up random implementation for librumpuser Use /dev/urandom for platforms without arc4random, not srandom(), deduplicate code, do not read excessive random bytes Reviewed by pooka@
1.2.6.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.2.6.1	25-Jul-2014	tls	file rumpuser_random.c was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.2.2.2	10-Aug-2014	tls	Rebase.
1.2.2.1	25-Jul-2014	tls	file rumpuser_random.c was added on branch tls-earlyentropy on 2014-08-10 06:52:26 +0000
1.1	20-Feb-2014	pooka	branches: 1.1.4; 1.1.8; Translate signal numbers between rump kernel and (POSIX) host.
1.1.8.2	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.1.8.1	20-Feb-2014	tls	file rumpuser_sigtrans.c was added on branch tls-maxphys on 2014-08-20 00:02:21 +0000
1.1.4.2	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.1.4.1	20-Feb-2014	yamt	file rumpuser_sigtrans.c was added on branch yamt-pagecache on 2014-05-22 11:37:00 +0000
1.77	06-May-2020	christos	Allocate one more byte so that we are always NUL-terminated, and remove the extra commented out NUL-terminations. As suggested in: http://mail-index.netbsd.org/source-changes-d/2020/04/01/msg012470.html
1.76	06-May-2020	kamil	Avoid buffer overflow Disable the offending code. OK by kre@
1.75	24-Mar-2020	kre	If we're going to loop, pausing and then retrying malloc() after it has failed, in the hope that some other thread has free'd some memory, but we want to bound the number of attempts, it helps if we actually count them - otherwise we never get nearer to the limit. In practice, malloc() for a reasonable application on a modern system almost never fails, so the code containing this bug has probably never been, and never will be, executed, but just in case, someday. For this, it isn't clear if the intent was to have 10 retries (ie: 11 attempts) or 10 tries, but as the code said "retries > 10", I am assuming the former (not that it matters, if the malloc() has failed 10 times in a row, with 10 second pauses between, the chances of an 11th succeeding aren't great).
1.74	24-Mar-2020	kamil	Revert previous It will be addressed in a better way. Requested by <kre>
1.73	24-Mar-2020	kamil	Avoid buffer overflow Detected with ASan + RUMPKERNEL.
1.72	06-Sep-2016	martin	branches: 1.72.14; Redo previous by avoiding the casts and using PRIxREGISTER instead
1.71	06-Sep-2016	martin	Can not print register_t with %d, cast to long and use %ld instead.
1.70	16-Aug-2015	pooka	Hurd support, part 1 from Robert Millan <rmh@gnu.org> via rumpkernel-users
1.69	04-Feb-2015	pooka	If binding fails, print URL with which it failed.
1.68	08-Dec-2014	justin	Avoid uninitialised variable warning when gcc is feeling lazy
1.67	25-Aug-2014	pooka	No longer create a special process context to fork remote clients off of, simply always rfork off of proc1 closing all descriptors, and have the rump kernel open 0/1/2 if the parent process is "1". Fixes tests/rump/rumpkernel/t_sp, which was failing since the abovementioned special process change due to attempting to deliver a signal to the special process and the special process was not equipped to handle one.
1.66	14-Jun-2014	pooka	branches: 1.66.2; Remove one more symbol reference to librump (missed in previous commit to this file)
1.65	23-May-2014	pooka	do previous the right way to avoid rumpuser linkage dependency on librump
1.64	23-May-2014	pooka	Create remote clients with standard file descriptors open. Fixes at least editing a new file with ed in rumpremote (because ed calls isatty(0) in case a file does not exist).
1.63	28-Feb-2014	pooka	branches: 1.63.2; Fix locking SNAFU. Is someone can explain why the code worked for 3+ years with multiple different pthread implementations, I'll buy you a banana.
1.62	08-Jan-2014	pooka	OpenBSD support from Justin Cormack via github
1.61	01-Nov-2013	pooka	Workaround a gcc -Wuninitilized whine github/buildrump.sh issue #44
1.60	27-Oct-2013	rmind	librumpuser: add some #ifdef __APPLE__ and missing bits to build it on OS X. OK pooka@
1.59	18-Jul-2013	pooka	Fix build where compiler can throw an array-bounds error and code is built with NDEBUG or platform's assert is not __dead
1.58	30-Apr-2013	pooka	branches: 1.58.2; Translate error codes between the hypervisor and rump kernel.
1.57	30-Apr-2013	pooka	Make hypercall calling conventions consistent: iff a hypercall can fail, it returns an int containing the error value.
1.56	29-Apr-2013	pooka	Make the rump kernel upcalls which were previous available only to the sysproxy module available for the entire hypervisor.
1.55	27-Apr-2013	pooka	nuke unused var
1.54	27-Apr-2013	pooka	make the random hypercall more generic
1.53	27-Apr-2013	pooka	wrap unportable register_t with a long. should do it in the front of the house too, but at least this is a start.
1.52	27-Apr-2013	pooka	* integrate rumpuser_getversion() with the hypervisor initialization * rename some identifiers to better match reality
1.51	14-Jan-2013	pooka	Support Cygwin as a hypervisor.
1.50	26-Nov-2012	pooka	Support DragonFly BSD.
1.49	26-Nov-2012	pooka	FreeBSD fixes. from philip@freebsd.org
1.48	21-Sep-2012	pooka	For the rumpsp protocol, don't assume that the bit representation of errnos match on the client and server platforms (the syscall subprotocol errnos are handled by the server compat code).
1.47	27-Jul-2012	pooka	branches: 1.47.2; Once again, make the rump kernel hypercall layer work on Linux.
1.46	09-Mar-2012	joerg	Disable reduced stack for now. It creates fallout I'm not willing to deal with.
1.45	08-Mar-2011	pooka	branches: 1.45.4; Use sendmsg() instead multiple calls to sendto(). It behaves slightly better in the multithreaded exec case in terms of partial frames sent. Plus, it's theoretically a little cheaper. There's still a gray area with partial transfer from sendmsg(), but I'm not sure I care enough about some academic scenario to start fixing it (it basically needs an OOB exec signaller).
1.44	08-Mar-2011	pooka	Nuke all threads belonging to a process calling exec before allowing the exec handshake to return. In addition to being The Right Thing To Do, fixes some nasty conditions for CLOEXEC fd's (or at least does so in theory, I couldn't create any problems although I tried).
1.43	07-Mar-2011	pooka	use nwork-adjusted amount of idle workers to decide is they are truly idle.
1.42	15-Feb-2011	pooka	Cleanup server socket before sending back "ok" for halt. Fixes some occasionally-seen race conditions in tests which do server restarts (e.g. the raidframe tests).
1.41	15-Feb-2011	pooka	support HANDSHAKE_EXEC
1.40	08-Feb-2011	pooka	Turn the "idle workers available" from a flag into a counter so that we can finally avoid all races (knock knock).
1.39	06-Feb-2011	pooka	Fix a race condition in the worker thread caching logic: if we got two or more syscall requests before any worker thread ran, we might not have enough threads to handle the requests. In some scenarios this could lead to a deadlock.
1.38	28-Jan-2011	pooka	Pass the value of getprogname() from the client to the server and record it in p_comm. This is nice for things like sockstat, since they now display the client command name: pain-rustique:43:~> rump.sockstat USER COMMAND PID FD PROTO LOCAL ADDRESS FOREIGN ADDRESS root xulrunner- 16 0 tcp 192.168.2.114.65507 204.152.190.12.80 root xulrunner- 16 1 tcp 192.168.2.114.65501 204.152.190.12.80 root xulrunner- 16 2 tcp 192.168.2.114.65500 204.152.190.12.80 root xulrunner- 16 3 tcp 192.168.2.114.65499 204.152.190.12.80 root xulrunner- 16 5 tcp 192.168.2.114.65498 204.152.190.12.80 root xulrunner- 16 6 tcp 192.168.2.114.65497 204.152.190.12.80 root socket 62 0 tcp6 .http .* root socket 62 1 tcp .http .* root socket 63 0 tcp6 .81 .* root socket 63 1 tcp .81 .*
1.37	22-Jan-2011	pooka	In case sys_reboot() was called by a remote client, put the response in the socket before we shut down. This way the response to the syscall travels to the caller and they know things worked correctly instead of having to just assume.
1.36	14-Jan-2011	pooka	branches: 1.36.2; Add RUMPSP_RAISE: the kernel sends a signal to the client.
1.35	12-Jan-2011	pooka	call procexit when a connection closes
1.34	10-Jan-2011	pooka	A bunch of improvements: * don't hold spc mutex while sending data * use send() for the banner to avoid SIGPIPE in case a client connects and immediately goes away * fix error path locking * use kevent() instead of pollts() in the client. Apparently that is the only sensible way for a library to support both multithreading and signal-reentrancy in a race-free manner. (can I catch all signals with one kevent instead of installing NSIG different ones??) * mark client comm descriptor non-blocking so that clients have better signal-interruptibility (we now sleep in signal-accepting kevent() instead of signal-masked recvfrom())
1.33	10-Jan-2011	pooka	g/c code which is unused in the server
1.32	09-Jan-2011	pooka	Separate rw_data and rw_done. Otherwise we don't get wakeups for requests which have a 0-length response (such as copyin 0/0). This change makes links(1) work against a rump kernel which contains rumpnet_local. The presence of unix domain sockets caused links to select() with 0 fds and a timeout, and because copyin never woke up in the kernel the application blocked indefinitely.
1.31	06-Jan-2011	pooka	Make rumpclient syscalls safe to call from signal handlers.
1.30	05-Jan-2011	pooka	Release sender lock before zeroing out "wanted" status during violent disconnect. Fixes some race conditions (maybe the one occasionally showing up on tests/rump/rumpkern/t_stress). thanks to schmonz for some discussion
1.29	05-Jan-2011	pooka	Support fork() for rumpclient users.
1.28	02-Jan-2011	pooka	rump_lwproc_newproc -> rump_lwproc_rfork
1.27	16-Dec-2010	pooka	Have the client and server perform some sort of handshake first. It's pretty much a placeholder for now. One plan for the future is to require some sort of authentication for superuser clients. The code will need a little massage then, though, to prevent DoS attacks.
1.26	16-Dec-2010	pooka	Print a banner a connecting client. The banner contains rump sp protocol version, os name, os revision and machine.
1.25	12-Dec-2010	pooka	Unlink unix socket as part of server exit. (whatever happened to the code that was supposed to do it automatically when the binding process exits?)
1.24	12-Dec-2010	pooka	add rumpuser_sp_fini, which surpringly is the opposite of rumpuser_sp_init
1.23	12-Dec-2010	pooka	outdated comment
1.22	30-Nov-2010	pooka	lint care
1.21	29-Nov-2010	pooka	Remove remaining panic()s from server-side code. Also, allow to send an out-of-band error. Make the client retry syscall requests if this error is EAGAIN, fail them otherwise.
1.20	29-Nov-2010	pooka	Cache syscall worker threads and include some stetson-harrison limits. This improves syscall throughput about 2x for non-userio syscalls (no copyin/out, e.g. getpid()) and almost 1.5x even for things like __sysctl(). (measured for cases where the remote process is on the local machine) XXX: if the pthread deadqueue sucks for anything which cares about performance, why does it exist? Nuking it would make supporting variable stack size easier.
1.19	27-Nov-2010	pooka	Since we are going to handle syscalls in our threads, limit stacksize. (unfortunately though, pthread_attr_setstacksize() has no effect on NetBSD)
1.18	26-Nov-2010	pooka	Fix a few locking problems with multithreaded clients. TODO: make server deal graciously with out-of-resources conditions
1.17	26-Nov-2010	pooka	Improve reliability in cases where client disconnects mid-operation.
1.16	26-Nov-2010	pooka	Plug recently introduced memory leak: release lwp after use instead of just switching away. Also, make freeing syscall arguments a little more symmetric.
1.15	25-Nov-2010	pooka	facepalm, adjust remote copyinstr to work in cases where the end of the max copyin extends to an unmapped page. Noticed, as usual, by tests.
1.14	24-Nov-2010	pooka	create pthread attribute only once
1.13	24-Nov-2010	pooka	Unschedule from CPU for out-of-kernel blocking ops. Otherwise we might even deadlock if the thread that wakes us up wants a CPU.
1.12	24-Nov-2010	pooka	improve threadsafety
1.11	24-Nov-2010	pooka	Sneeze some locking into connect/disconnect.
1.10	22-Nov-2010	pooka	Support physio for remote processes. ==> add support for remote vmspace vmapbuf/vunmapbuf ==> add proper support for copyin/out_vmspace ==> add support for remote vmspace uvm_io ==> add support for non-curproc rumpuser_sp_copyin/out ==> store remote context in vm_map->pmap instead of pthread_specificdata In short, makes read/write of most (all?) block devices work from a remote rump client via rump syscalls.
1.9	19-Nov-2010	pooka	squelch the compiler whine
1.8	19-Nov-2010	pooka	Support multithreaded clients and fix a few bugs.
1.7	19-Nov-2010	pooka	Start working on making the syscall proxy code threadsafe. The basics are there, but a few more tweaks are needed. The reason I'm committing it now is that the code was mindnumbingly boring to write (no wonder it took me almost 3 years to get it done), and I might burn it if it's not in a safe place.
1.6	17-Nov-2010	pooka	free syscall data after use
1.5	04-Nov-2010	pooka	Refactor the sysproxy code so that rumpuser contains only the server side.
1.4	01-Nov-2010	pooka	Missed a few symbols in previous ... Also, reorganize rumpuser header inclusion to make sure problem is caught already by the compiler.
1.3	01-Nov-2010	pooka	Make librumpuser linkage once again free of librump. problem pointed out by <he>
1.2	28-Oct-2010	pooka	Run different clients (different sockets) in different processes inside the rump kernel. Now different host processes can no longer step on each other inside the rump kernel.
1.1	27-Oct-2010	pooka	Start rework of system call proxying over socket ("sysproxy"). This incarnation is written in the user namespace as opposed to the previous one which was done in kernel namespace. Also, rump does all the handshaking now instead of excepting an application to come up with the user namespace socket. There's still a lot to do, including making code "a bit" more robust, actually running different clients in a different process inside the kernel and splitting the client side library from librump. I'm committing this now so that I don't lose it, plus it generally works as long as you don't use it in unexcepted ways: i've tested ifconfig(8), route(8), envstat(8) and sysctl(8).
1.36.2.2	17-Feb-2011	bouyer	Sync with HEAD
1.36.2.1	08-Feb-2011	bouyer	Sync with HEAD
1.45.4.5	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.45.4.4	23-Jan-2013	yamt	sync with head
1.45.4.3	16-Jan-2013	yamt	sync with (a bit old) head
1.45.4.2	30-Oct-2012	yamt	sync with head
1.45.4.1	17-Apr-2012	yamt	sync with head
1.47.2.4	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.47.2.3	23-Jun-2013	tls	resync from head
1.47.2.2	25-Feb-2013	tls	resync with head
1.47.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.58.2.1	23-Jul-2013	riastradh	sync with HEAD
1.63.2.1	10-Aug-2014	tls	Rebase.
1.66.2.1	09-Dec-2014	martin	Pull up following revision(s) (requested by gson in ticket #299): sys/rump/librump/rumpkern/cons.c: revision 1.4 sys/rump/librump/rumpkern/rump.c: revision 1.311 lib/librumpuser/rumpuser_sp.c: revision 1.67 No longer create a special process context to fork remote clients off of, simply always rfork off of proc1 closing all descriptors, and have the rump kernel open 0/1/2 if the parent process is "1". Fixes tests/rump/rumpkernel/t_sp, which was failing since the abovementioned special process change due to attempting to deliver a signal to the special process and the special process was not equipped to handle one.
1.72.14.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.2	01-Mar-2013	pooka	Add interfaces that out-of-librumpuser hypercalls can use to unschedule and reschedule themselves if they plan to block.
1.1	26-Feb-2010	pooka	branches: 1.1.6; 1.1.12; librumpuser is not _KERNEL code and does not belong in sys. Move the source files from src/sys/rump/librump/rumpuser to src/lib/librumpuser (from where it is already built). Even so, keep rumpuser.h in sys/rump/include for kernel source tree self-containment.
1.1.12.1	23-Jun-2013	tls	resync from head
1.1.6.1	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.45	02-Apr-2025	martin	Revert accidental local test change from previous - the DEBUG define is passed on the command line already.
1.44	02-Apr-2025	riastradh	librumpuser: New RUMPUSER_DEBUG env var enables debug output. Use it in t_sp:sigsafe to see if we can get more diagnostics out.
1.43	07-Dec-2021	gson	branches: 1.43.4; In unix_parse(), always allocate memory for the entire struct sockaddr_un and not just the part used by the present pathname, because the entire struct will be passed to bind() and an EFAULT can result if not all of it is a valid allocation. Fixes PR kern/56533.
1.42	13-Jun-2020	kamil	Fix incompatible function pointer casts
1.41	06-May-2020	christos	Allocate one more byte so that we are always NUL-terminated, and remove the extra commented out NUL-terminations. As suggested in: http://mail-index.netbsd.org/source-changes-d/2020/04/01/msg012470.html
1.40	24-Mar-2020	kamil	Fix off-by-one Before accessing array member, check whether it is not out of valid range. Detected with ASan + RUMPKERNEL.
1.39	05-Sep-2016	dholland	branches: 1.39.14; printf functions should be tagged as printf functions. Noticed by martin, whose build broke for some reason yet to be determined.
1.38	08-Jan-2014	pooka	OpenBSD support from Justin Cormack via github
1.37	31-Dec-2013	pooka	Do not export symbols which don't need to be exported. via Justin Cormack
1.36	14-Jan-2013	pooka	Support Cygwin as a hypervisor.
1.35	26-Nov-2012	pooka	Since SA_SETLEN() is used only for sockaddr_in, convert it to SIN_SETLEN() to avoid compiler whining on breaking strict aliasing rules.
1.34	18-Nov-2012	pooka	Fixes for Solarisa.
1.33	21-Sep-2012	pooka	For the rumpsp protocol, don't assume that the bit representation of errnos match on the client and server platforms (the syscall subprotocol errnos are handled by the server compat code).
1.32	27-Jul-2012	pooka	branches: 1.32.2; Once again, make the rump kernel hypercall layer work on Linux.
1.31	08-Mar-2011	pooka	branches: 1.31.4; Use sendmsg() instead multiple calls to sendto(). It behaves slightly better in the multithreaded exec case in terms of partial frames sent. Plus, it's theoretically a little cheaper. There's still a gray area with partial transfer from sendmsg(), but I'm not sure I care enough about some academic scenario to start fixing it (it basically needs an OOB exec signaller).
1.30	08-Mar-2011	pooka	Nuke all threads belonging to a process calling exec before allowing the exec handshake to return. In addition to being The Right Thing To Do, fixes some nasty conditions for CLOEXEC fd's (or at least does so in theory, I couldn't create any problems although I tried).
1.29	08-Mar-2011	pooka	return correct value when reading a short frame
1.28	15-Feb-2011	pooka	support HANDSHAKE_EXEC
1.27	14-Feb-2011	pooka	A bunch of changes which essentially make sshd work with a hijacked rump tcp/ip stack: * sshd likes to fork and then re-exec itself ==> trap execve() and augment the env with the current parameters essential to a rump kernel (kernel communication fd, information about dup2'd file descriptors) * sshd likes to play lots of games with pipes, socketpairs and dup{,2}() ==> make sure we do not close essential rump client descriptors: dup() them to a safe place, except for F_CLOSEM where we simply leave them alone. also, partially solved by the above, make sure the process's set of rump kernel descriptors persists over exec() * sshd likes to chdir() before exec ==> for unix-style rump_sp(7) sockets save the full path on the initial exec and use it afterwards. thread the path through the environment in execve()
1.26	24-Jan-2011	pooka	Add reconnect code to librumpclient. In case the connection to the kernel server is lost, the client will now automatically attempt to reconnect. Among other things, this makes it possible to "reboot" and restart the TCP/IP stack from under firefox without any perceivable less of service. If pages were loading at the time the TCP/IP server was killed, there may be some broken links, but nothing a ctrl-r cannot fix.
1.25	22-Jan-2011	pooka	In case sys_reboot() was called by a remote client, put the response in the socket before we shut down. This way the response to the syscall travels to the caller and they know things worked correctly instead of having to just assume.
1.24	14-Jan-2011	pooka	branches: 1.24.2; Add RUMPSP_RAISE: the kernel sends a signal to the client.
1.23	10-Jan-2011	pooka	A bunch of improvements: * don't hold spc mutex while sending data * use send() for the banner to avoid SIGPIPE in case a client connects and immediately goes away * fix error path locking * use kevent() instead of pollts() in the client. Apparently that is the only sensible way for a library to support both multithreading and signal-reentrancy in a race-free manner. (can I catch all signals with one kevent instead of installing NSIG different ones??) * mark client comm descriptor non-blocking so that clients have better signal-interruptibility (we now sleep in signal-accepting kevent() instead of signal-masked recvfrom())
1.22	10-Jan-2011	pooka	g/c code which is unused in the server
1.21	09-Jan-2011	pooka	Separate rw_data and rw_done. Otherwise we don't get wakeups for requests which have a 0-length response (such as copyin 0/0). This change makes links(1) work against a rump kernel which contains rumpnet_local. The presence of unix domain sockets caused links to select() with 0 fds and a timeout, and because copyin never woke up in the kernel the application blocked indefinitely.
1.20	07-Jan-2011	pooka	Make rumpclient impervious to LD_PRELOAD syscall hijacking by using dlsym(RTLD_NEXT) to lookup a host_syscall() function pointer which is used instead of syscall() to communicate with the kernel server. WARNING: popular opinion classifies this as "ugly code". if you have a weak heart/mind/soul/sole meuniere, read max. 1 line of the diff per day, preferably with food.
1.19	06-Jan-2011	pooka	Make rumpclient syscalls safe to call from signal handlers.
1.18	05-Jan-2011	pooka	Support fork() for rumpclient users.
1.17	16-Dec-2010	pooka	Have the client and server perform some sort of handshake first. It's pretty much a placeholder for now. One plan for the future is to require some sort of authentication for superuser clients. The code will need a little massage then, though, to prevent DoS attacks.
1.16	16-Dec-2010	pooka	Print a banner a connecting client. The banner contains rump sp protocol version, os name, os revision and machine.
1.15	12-Dec-2010	pooka	Unlink unix socket as part of server exit. (whatever happened to the code that was supposed to do it automatically when the binding process exits?)
1.14	30-Nov-2010	pooka	Hands off of stuff we need to keep hands off of.
1.13	29-Nov-2010	pooka	Remove remaining panic()s from server-side code. Also, allow to send an out-of-band error. Make the client retry syscall requests if this error is EAGAIN, fail them otherwise.
1.12	26-Nov-2010	pooka	Fix a few locking problems with multithreaded clients. TODO: make server deal graciously with out-of-resources conditions
1.11	26-Nov-2010	pooka	Improve reliability in cases where client disconnects mid-operation.
1.10	25-Nov-2010	pooka	facepalm, adjust remote copyinstr to work in cases where the end of the max copyin extends to an unmapped page. Noticed, as usual, by tests.
1.9	24-Nov-2010	pooka	unsnafu previous
1.8	24-Nov-2010	pooka	Unschedule from CPU for out-of-kernel blocking ops. Otherwise we might even deadlock if the thread that wakes us up wants a CPU.
1.7	24-Nov-2010	pooka	missed part of earlier commit
1.6	19-Nov-2010	pooka	Support multithreaded clients and fix a few bugs.
1.5	19-Nov-2010	pooka	delint
1.4	19-Nov-2010	pooka	Start working on making the syscall proxy code threadsafe. The basics are there, but a few more tweaks are needed. The reason I'm committing it now is that the code was mindnumbingly boring to write (no wonder it took me almost 3 years to get it done), and I might burn it if it's not in a safe place.
1.3	10-Nov-2010	pooka	Don't puff sigpipe if the connection has been severed. May happen e.g. when a client executes a blocking call such a poll() and decides to exit before the result is ready.
1.2	05-Nov-2010	pooka	Implement support for unix domain sockets (important especially for testing since we don't want to depend on global resources such as tcp ports).
1.1	04-Nov-2010	pooka	Refactor the sysproxy code so that rumpuser contains only the server side.
1.24.2.2	17-Feb-2011	bouyer	Sync with HEAD
1.24.2.1	08-Feb-2011	bouyer	Sync with HEAD
1.31.4.4	22-May-2014	yamt	sync with head. for a reference, the tree before this commit was tagged as yamt-pagecache-tag8. this commit was splitted into small chunks to avoid a limitation of cvs. ("Protocol error: too many arguments")
1.31.4.3	23-Jan-2013	yamt	sync with head
1.31.4.2	16-Jan-2013	yamt	sync with (a bit old) head
1.31.4.1	30-Oct-2012	yamt	sync with head
1.32.2.3	20-Aug-2014	tls	Rebase to HEAD as of a few days ago.
1.32.2.2	25-Feb-2013	tls	resync with head
1.32.2.1	20-Nov-2012	tls	Resync to 2012-11-19 00:00:00 UTC
1.39.14.1	08-Apr-2020	martin	Merge changes from current as of 20200406
1.43.4.1	02-Aug-2025	perseant	Sync with HEAD
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.3	17-Nov-2020	rin	Support aarch64eb in */config.guess. Cherry-picked from upstream: https://git.savannah.gnu.org/gitweb/?p=config.git;a=commit;h=1c4398015583eb77bc043234f5734be055e64bea Everything except external/apache2/llvm/dist/llvm/cmake/config.guess is patched, which is under vendor tag and cannot be modified. I expect that this file is not actually used as we use hand-crafted version of configure script instead of cmake for building LLVM. Note that external/apache2/llvm/autoconf/autoconf/config.guess has already been committed on Oct. 20, but commit message disappeared as cvs aborted due to "permission denied" when trying to modify the file mentioned above. Sorry for confusing you. Also note that GMP uses its own config.guess Patch for external/lgpl3/gmp/dist/config.guess is provided by ryo@. Thanks!
1.2	01-Feb-2017	sevan	Update supporting files for components which rely on autoconf to allow systems introducing since release of software to be recognised. This should hopefully allow the builds to progress a littles further on systems such as the POWER8 which features a little endian 64-bit PowerPC CPU identified as ppc64le.
1.1	04-Nov-2014	pooka	branches: 1.1.2; 1.1.4; Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.1.4.1	21-Apr-2017	bouyer	Sync with HEAD
1.1.2.1	20-Mar-2017	pgoyette	Sync with HEAD
1.3	01-Feb-2017	sevan	Update supporting files for components which rely on autoconf to allow systems introducing since release of software to be recognised. This should hopefully allow the builds to progress a littles further on systems such as the POWER8 which features a little endian 64-bit PowerPC CPU identified as ppc64le.
1.2	04-Nov-2014	pooka	branches: 1.2.2; 1.2.4; be happy with netbsd- to recognize arm--netbsdelf-eabi from pkg/48126, simplified
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.2.4.1	21-Apr-2017	bouyer	Sync with HEAD
1.2.2.1	20-Mar-2017	pgoyette	Sync with HEAD
1.2	03-Jun-2023	andvar	fix various typos in comments and messages.
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.3	19-Oct-2016	maya	Revert previous. it shouldn't have an effect. $$ should make it sufficiently unique.
1.2	17-Oct-2016	maya	use mktemp instead of $RANDOM for tmpdir ..$RANDOM won't work with our /bin/sh. unsure if this script is used, but it is wrong. might help the spurious build failures that occasionally show up on autobuilds.
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)
1.1	04-Nov-2014	pooka	Use autoconf for rump kernel posix hypercall layer. This gets rid of homegrown hacks and puts all probes in one place. Tested for NetBSD (build.sh + anita) and Linux (buildrump.sh)

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