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239 Commits

Author SHA1 Message Date
pooka d5b308ef63 do previous the right way to avoid rumpuser linkage dependency on librump 2014-05-23 16:57:42 +00:00
pooka 5fbc8e741c 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).
 2014-05-23 11:04:03 +00:00
pooka 0cafe662ce weak alias removal implication: rumpuser_dl_globalsym() can now sleep 
with the fishes.
 2014-04-27 15:18:59 +00:00
justin 95e41b89b5 Add Android support for rump kernel. 
Reviewed by pooka@
 2014-04-02 17:09:23 +00:00
pooka cd76e7c732 Always use sysconf() to query host processor count instead of separate 
tricks for each platform.
 2014-04-02 13:54:42 +00:00
pooka 0ab0c8a502 fix name of HAVE_PTHREAD_SETNAME_3 2014-03-21 16:03:35 +00:00
pooka fe7fe5876f fix braces 2014-03-21 16:03:07 +00:00
pooka bc215c110d use a probe result to decide which pthread_setname_np() to use 2014-03-21 12:28:54 +00:00
pooka fa5f7ef47e set threadname for correct pthread_t 2014-03-21 12:07:10 +00:00
njoly 61d6bfec15 Do not use uninitialized pointer if posix_memalign() fails. 2014-03-16 10:23:59 +00:00
justin 54d90457f6 If dlopen returns NULL assume we are statically linked and return, 
rather than getting a warning when dlinfo fails.
 2014-03-14 01:18:39 +00:00
pooka 300f37afc0 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
 2014-03-13 11:21:54 +00:00
justin cf83766ecf Revert conversion to __thread as breaks on archs without TLS support 2014-03-10 22:37:51 +00:00
justin 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
pooka 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
pooka a2867970a4 emulate printflike properly to avoid fatal error on clang 2014-02-25 20:58:18 +00:00
pooka 613311d8d7 remember to commit this file too 2014-02-20 01:24:49 +00:00
pooka fb8e281673 make implementation of rumpuser_kill() match the documentation 2014-02-20 00:44:20 +00:00
pooka 64a85ea946 document rumpuser_kill() 2014-02-20 00:43:26 +00:00
pooka 437e54a701 Translate signal numbers between rump kernel and (POSIX) host. 2014-02-20 00:42:27 +00:00
pooka 177c2413c9 minor clarification: rumpuser_thread_create() is used to create the host 
thread context for kernel threads, never for application threads.

per discussion with justin
 2014-02-14 00:33:51 +00:00
pooka 8d2ee87e24 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).
 2014-01-16 16:03:33 +00:00
pooka 29316c504c Make setprogname() a nop where it's not supported. 2014-01-15 16:53:15 +00:00
pooka 2b361b10dd remove obsolete definitions 2014-01-08 11:04:47 +00:00
pooka 6459f6aa95 do as the comment says and #if defined(every_other) || defined(platform) || ... 
===> #if !defined(__NetBSD__)
 2014-01-08 01:47:31 +00:00
pooka f67143f64b OpenBSD support 
from Justin Cormack via github
 2014-01-08 01:45:29 +00:00
pooka 55ffc8641a Do not export symbols which don't need to be exported. 
via Justin Cormack
 2013-12-31 00:25:17 +00:00
pooka cbbcae5f8b remove outdated comment (since quite a few months ago) 2013-12-18 20:24:04 +00:00
pooka 9f9913cebe Workaround a gcc -Wuninitilized whine 
github/buildrump.sh issue #44
 2013-11-01 23:22:13 +00:00
pooka d3852222c9 Oh, stdint.h isn't written with a comma ... 2013-10-30 13:08:14 +00:00
pooka e5aed19d72 need to include stdint.h before rump/rumpuser.h 2013-10-30 12:55:53 +00:00
pooka 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
rmind 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
rmind 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
rmind 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
pooka 4be69cd08b 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)
 2013-09-23 10:35:20 +00:00
pooka b3e8687dfb more platform-specific qualifiers 2013-09-10 17:58:39 +00:00
pooka 6cd40f3fba Install rumpuser_port.h 2013-09-10 16:51:24 +00:00
pooka e9fe155c86 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.
 2013-08-14 08:29:25 +00:00
pooka f3adf1e54f comment polish: just musl 2013-07-30 18:56:03 +00:00
pooka aaf7a23bf7 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
 2013-07-30 18:48:51 +00:00
njoly f2bb7e6625 Use <major>.<minor> for NetBSD version. 2013-07-22 12:36:56 +00:00
pooka 3fcbbf6450 TIMEVAL_TO_TIMESPEC (for musl) 
from Justin Cormack
 2013-07-22 08:58:31 +00:00
pooka 40fd6d6fa3 Fixes when compiling against musl libc. 
from Justin Cormack via private email
 2013-07-20 18:46:15 +00:00
pooka f768d01c4f Fix build where compiler can throw an array-bounds error and 
code is built with NDEBUG
	or
	platform's assert is not __dead
 2013-07-18 12:28:26 +00:00
pooka 69c4f929cd FreeBSD does the Solaris-like map->l_addr boogie. 
from Ben Gras
 2013-06-04 15:17:28 +00:00
wiz 890db9708a More markup, less typos. 2013-05-15 22:09:32 +00:00
pooka 03395b4cf5 also, bsd.own.mk to pick up mk.conf 2013-05-15 20:47:20 +00:00
pooka 5666bf4b73 Make it possible for external parties to specify additional dplibs. 
This is useful for example on platforms which require -ldl.
 2013-05-15 20:27:00 +00:00
pooka 907ce8379e Improve documentation on the locking order of cv_wait mtx/cpu. 2013-05-15 17:53:09 +00:00