6f964b7d23
Minix also has getenv_r support
2014-09-29 15:54:28 +00:00
b124cf15b4
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.
2014-08-25 14:58:48 +00:00
404e3c9501
lso translate errno in the rumpfiber version
2014-08-25 10:33:32 +00:00
103543d43b
Add errno translation for bio operations
2014-08-25 10:21:39 +00:00
82dada912f
RCS Id police (because we can. or have you heard of git id police?)
2014-08-24 14:37:31 +00:00
de743a993f
* attempt to clarify what "POSIX" means
...
* link to Platforms page on wiki for a list of known implementation
2014-08-24 14:35:27 +00:00
aaf730d309
Add missing include
2014-08-20 12:09:15 +00:00
28e2f06e08
Clean up error handling in rumpuser_init()
2014-07-25 14:00:31 +00:00
648d66f04b
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@
2014-07-22 22:41:58 +00:00
e77183a6da
Remove unused file.
2014-07-14 10:36:33 +00:00
3620d3dbee
Add a fiber based implementation of librumpuser in addition to the
...
default pthreads based version.
Discussed with pooka@
2014-07-11 20:26:31 +00:00
10b89fe038
Reinstate include of netdb.h, needed on some cross builds
2014-07-10 08:17:43 +00:00
4ce85d0b6f
Split out file and memory access in librumpuser
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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@
2014-07-09 23:41:40 +00:00
2f525beeee
Hrmph, revert previous pending another fix. I tested it yesterday with
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a slightly older tree, and of course it doesn't work anymore ...
2014-06-23 12:38:18 +00:00
fbc749c67d
Wrap pthread_create(). Shouldn't really have a functional effect,
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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).
2014-06-22 20:17:23 +00:00
9dd44a1195
Applications are not supposed to and do not need to include <features.h> explicitly
2014-06-17 09:53:59 +00:00
f6181a22c5
Antti objected to including rumpuser_sync_icache. Exclude it from the build.
2014-06-17 08:42:35 +00:00
e0a3ca70e0
For consistency with other files in the same directory
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don't include <sys/cdefs.h> before __RCSID.
2014-06-17 06:43:21 +00:00
bb8c3186cb
Implement rumpuser_sync_icache hypercall.
2014-06-17 06:31:47 +00:00
46b0c1cbc8
Add __RCSID.
2014-06-16 21:07:28 +00:00
ce1cd03e24
Remove one more symbol reference to librump (missed in previous commit
...
to this file)
2014-06-14 11:52:42 +00:00
d5b308ef63
do previous the right way to avoid rumpuser linkage dependency on librump
2014-05-23 16:57:42 +00:00
5fbc8e741c
Create remote clients with standard file descriptors open. Fixes at
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least editing a new file with ed in rumpremote (because ed calls
isatty(0) in case a file does not exist).
2014-05-23 11:04:03 +00:00
0cafe662ce
weak alias removal implication: rumpuser_dl_globalsym() can now sleep
...
with the fishes.
2014-04-27 15:18:59 +00:00
95e41b89b5
Add Android support for rump kernel.
...
Reviewed by pooka@
2014-04-02 17:09:23 +00:00
cd76e7c732
Always use sysconf() to query host processor count instead of separate
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tricks for each platform.
2014-04-02 13:54:42 +00:00
0ab0c8a502
fix name of HAVE_PTHREAD_SETNAME_3
2014-03-21 16:03:35 +00:00
fe7fe5876f
fix braces
2014-03-21 16:03:07 +00:00
bc215c110d
use a probe result to decide which pthread_setname_np() to use
2014-03-21 12:28:54 +00:00
fa5f7ef47e
set threadname for correct pthread_t
2014-03-21 12:07:10 +00:00
61d6bfec15
Do not use uninitialized pointer if posix_memalign() fails.
2014-03-16 10:23:59 +00:00
54d90457f6
If dlopen returns NULL assume we are statically linked and return,
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rather than getting a warning when dlinfo fails.
2014-03-14 01:18:39 +00:00
300f37afc0
Do not process linkmaps if there is exactly one link map present
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(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
2014-03-13 11:21:54 +00:00
cf83766ecf
Revert conversion to __thread as breaks on archs without TLS support
2014-03-10 22:37:51 +00:00
587ef2949a
Use __thread rather than pthread_getspecific for rumpuser curlwp.
...
This has better performance and curlwp is a performance bottleneck
in rump kernel code.
2014-03-09 23:01:11 +00:00
8a7d14d1c2
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.
2014-02-28 13:55:36 +00:00
a2867970a4
emulate printflike properly to avoid fatal error on clang
2014-02-25 20:58:18 +00:00
613311d8d7
remember to commit this file too
2014-02-20 01:24:49 +00:00
fb8e281673
make implementation of rumpuser_kill() match the documentation
2014-02-20 00:44:20 +00:00
64a85ea946
document rumpuser_kill()
2014-02-20 00:43:26 +00:00
437e54a701
Translate signal numbers between rump kernel and (POSIX) host.
2014-02-20 00:42:27 +00:00
177c2413c9
minor clarification: rumpuser_thread_create() is used to create the host
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thread context for kernel threads, never for application threads.
per discussion with justin
2014-02-14 00:33:51 +00:00
8d2ee87e24
Do not force _FILE_OFFSET_BITS=64 here. It's no longer strictly speaking
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required (rumpuser interface no longer uses off_t) and force-defining
it causes foo() to magically become foo64() on glibc (even on 64bit
platforms).
2014-01-16 16:03:33 +00:00
29316c504c
Make setprogname() a nop where it's not supported.
2014-01-15 16:53:15 +00:00
2b361b10dd
remove obsolete definitions
2014-01-08 11:04:47 +00:00
6459f6aa95
do as the comment says and #if defined(every_other) || defined(platform) || ...
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===> #if !defined(__NetBSD__)
2014-01-08 01:47:31 +00:00
f67143f64b
OpenBSD support
...
from Justin Cormack via github
2014-01-08 01:45:29 +00:00
55ffc8641a
Do not export symbols which don't need to be exported.
...
via Justin Cormack
2013-12-31 00:25:17 +00:00
cbbcae5f8b
remove outdated comment (since quite a few months ago)
2013-12-18 20:24:04 +00:00
9f9913cebe
Workaround a gcc -Wuninitilized whine
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github/buildrump.sh issue #44
2013-11-01 23:22:13 +00:00
d3852222c9
Oh, stdint.h isn't written with a comma ...
2013-10-30 13:08:14 +00:00
e5aed19d72
need to include stdint.h before rump/rumpuser.h
2013-10-30 12:55:53 +00:00
079cd2100d
glibc on MIPS uses the same DYN d_ptr variant as NetBSD and musl.
...
from Justin Cormack
2013-10-30 12:30:32 +00:00
d60eb8c12f
librumpuser: add some #ifdef __APPLE__ and missing bits to build it on OS X.
...
OK pooka@
2013-10-27 16:39:46 +00:00
0f412aba18
Give RUMP mutex and rwlock their own cache-line. Also give a separate
...
cache-line for the rwlock's reader counter.
2013-09-26 00:41:51 +00:00
72b022939e
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.
2013-09-24 23:45:16 +00:00
4be69cd08b
If pthread_create() fails with EAGAIN, try a few more times with short
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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 )
2013-09-23 10:35:20 +00:00
b3e8687dfb
more platform-specific qualifiers
2013-09-10 17:58:39 +00:00
6cd40f3fba
Install rumpuser_port.h
2013-09-10 16:51:24 +00:00
e9fe155c86
Change the default value of rump kernels CPUs to 2. It used to be
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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.
2013-08-14 08:29:25 +00:00
f3adf1e54f
comment polish: just musl
2013-07-30 18:56:03 +00:00
aaf7a23bf7
Decide ET_DYN behavior based on __GLIBC__ instead of __linux__,
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e.g. musl libc doesn't follow glibc behavior.
per discussions with a number of people
2013-07-30 18:48:51 +00:00
f2bb7e6625
Use <major>.<minor> for NetBSD version.
2013-07-22 12:36:56 +00:00
3fcbbf6450
TIMEVAL_TO_TIMESPEC (for musl)
...
from Justin Cormack
2013-07-22 08:58:31 +00:00
40fd6d6fa3
Fixes when compiling against musl libc.
...
from Justin Cormack via private email
2013-07-20 18:46:15 +00:00
f768d01c4f
Fix build where compiler can throw an array-bounds error and
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code is built with NDEBUG
or
platform's assert is not __dead
2013-07-18 12:28:26 +00:00
69c4f929cd
FreeBSD does the Solaris-like map->l_addr boogie.
...
from Ben Gras
2013-06-04 15:17:28 +00:00
890db9708a
More markup, less typos.
2013-05-15 22:09:32 +00:00
03395b4cf5
also, bsd.own.mk to pick up mk.conf
2013-05-15 20:47:20 +00:00
5666bf4b73
Make it possible for external parties to specify additional dplibs.
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This is useful for example on platforms which require -ldl.
2013-05-15 20:27:00 +00:00
907ce8379e
Improve documentation on the locking order of cv_wait mtx/cpu.
2013-05-15 17:53:09 +00:00
3306a659de
Add a generalized rumpuser_syncfd() call which allows the caller
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to request a sync or a barrier for fd.
2013-05-15 15:57:01 +00:00
601de6b09f
Pass off_t over the hypercall interface as int64_t to avoid potential
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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
2013-05-15 14:58:24 +00:00
15dc8bf975
Pass enums over the hypercall interface as ints to avoid some
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pathological scenarios from arising in setups where enums might be
of a different size in the rump kernel and hypervisor.
2013-05-15 14:52:49 +00:00
d0d5069c1a
Add RUMPUSER_LWP_CLEAR instead of overloading RUMPUSER_LWP_SET.
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This simplifies some alternative hypervisor implementations.
2013-05-15 14:07:26 +00:00
af9586a1db
need the rw_downgrade/tryupgrade methods too
2013-05-07 16:40:31 +00:00
c0e1ad2997
update to recent interface changes
2013-05-07 15:37:05 +00:00
059f8df6f9
include stdint.h before rumpuser.h (on some platforms it doesn't get
...
there automagically)
2013-05-07 15:18:35 +00:00
302678cea5
Initialize rw->downgrade when allocating a rwlock.
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should/might/etc fix recent test hangs reported by martin & pgoyette
2013-05-05 12:27:38 +00:00
1747869c0f
Fix some punctuation nits and bump date for previous.
2013-05-03 20:27:16 +00:00
cfbb87e05b
Support proper rw_downgrade() semantics.
2013-05-03 00:23:49 +00:00
92e27cb3c3
reorder for better locality. no functional change.
2013-05-02 22:07:57 +00:00
f448fededb
update for previous change
2013-05-02 21:47:12 +00:00
5606f9bf46
Ok, maybe using int64 for nanoseconds in the (sec,nsec) tuple was
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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.
2013-05-02 21:45:28 +00:00
f950fd3d52
Push rwlock upgrade and downgrade into the hypervisor where there's
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at least a chance to implement them with minimal fuss.
2013-05-02 21:35:19 +00:00
9a6702d07c
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*
2013-05-02 20:33:54 +00:00
939c69c331
Inform the rump kernel hypervisor of valid thread contexts so
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that the implementation can allocate and release storage for them
in an optimal fashion, if necessary.
2013-05-02 19:14:59 +00:00
5fe33bdc4b
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().
2013-05-02 16:49:08 +00:00
75af291e99
add HISTORY
2013-05-02 15:32:19 +00:00
47795d39b6
expand the intended usage of rumpuser_open()
2013-05-02 12:27:08 +00:00
a4068b6249
avoid Wunused on !NetBSD
2013-05-01 17:17:54 +00:00
aed84d6b35
document the hypercall interface
2013-04-30 21:18:40 +00:00
152588e3a9
Flip parameter order in the clock hypercalls to make them consistent
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with everything else wrt in/out parameters.
2013-04-30 16:03:44 +00:00
6601e4ea9f
put optional modules on a separate SRCS line
2013-04-30 15:48:29 +00:00
2e5a2855bd
make this build/work again
2013-04-30 13:37:03 +00:00
c46eb786b4
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).
2013-04-30 13:29:28 +00:00
be085dcd72
Translate error codes between the hypervisor and rump kernel.
2013-04-30 12:39:20 +00:00
8f668dabd5
Some systems don't provide preadv/pwritev (hi Solaris!), so implement
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that with lseek + readv/writev instead (and avoid rewinding the
pointer with soon-to-be documentation).
2013-04-30 11:26:26 +00:00
32a34307fa
Make hypercall calling conventions consistent: iff a hypercall can fail,
...
it returns an int containing the error value.
2013-04-30 00:03:52 +00:00
0dc3609e1c
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.
2013-04-29 20:08:48 +00:00
justin