Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

The tst-mmap.so test case noticed the following breakage in msync():

  Running mmap tests
  Assertion failed: msync(buf, 4096*9, MS_ASYNC) == 0
  (../../tests/tst-mmap.cc: main: 207)
  Aborted

The problem is that msync() uses the contains function which checks if
[start, end) is in a vma range but we really are interested in whether
the vma intersects with [start, end).

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

This Close issue #8 ""Make Java InetAddress.getHostName() works".

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Also convert it's header and change it's caller includes.

This patch is done so the libc resolver will be able to retrieve the dns from
OSv dns API.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Make mincore() error-path compatible with Linux by requiring 'addr' to
be page aligned.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Linux requires mincore() addresses to be page aligned.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Fix vma::sync() to return zero for msync'ing anonymous vmas like Linux
does.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Fix tst-mmap test on Linux by passing MAP_PRIVATE as a mmap flag.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

The mmap() function returns MAP_FAILED on error. Test for that.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Use C++ APIs to remove dependency to OSv internals so that we can run
the same test on Linux. Make the concurrency tests depend on OSv because
C++ doesn't have a API for binding threads to specific CPUs and we don't
want to clutter the test with pthread'isms.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

This is in order to make it send Ctrl+C to the guest instead
of killing the VM. Leads to less surprises when working with
interactive shell inside OSv.

To suppress the new behavior run with --g or --with-graphic.

Relates to issue #49.

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>

In order to have consistent indentation.

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>

The new command prints arguments set in the image.

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>

This is needed to start the JVM with debugger interface.

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>

cosmetic: add missing linefeed

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>

We use the RunJava Java class to run Java applications (both java.so
and the "java" CLI command use it). We used to have RunJava.class
uncompressed, in the /java directory, but this caused two problems:

1. Or noticed that having a directory (/java) on the classpath causes
   thousands of stat() calls when Java tries to look for all classes
   in this directory. With a jar, its contents are read only once.

2. The "java" CLI command (java.groovy) didn't work because apparently
   Groovy cannot deal with classes being in the top-level package.

   So this patch moves RunJava into the io.osv package, and put it into a jar
   /java/runjava.jar.

   Note that java.groovy is changed in a separate patch (because it's in
   a different sub-repository....)

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>

Debug build was broken by it since boost::asio was used.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

boost's asio.hpp module init() function was calling pthread_key_create which
tried to manipulate some libc/pthread.cc unitialized objects.

pthread_key_create then returned -ENOMEM so an exception was thrown by boost
causing the loader's premain() function to fail and the boot to loop.

This patch lower the priority of the initialization of the libc/pthread.cc
objects so they are ready when premain is calling the boost module init()
function.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

This patch uses boost::asio::ip::address* to cleanup the core dhcp code.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

bsd's ifconf conflicts with osv's; rename it.

We use the bsd version in <osv/ioctl.h>, since we currently don't support
the Linux-ABI variants of these ioctls.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Tested-By: Benoit Canet <benoit@irqsave.net>

The bsd ifaddr struct conflicts with the osv ifaddr struct, which is a
public interface.  Rename the bsd struct to avoid conflict.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Tested-By: Benoit Canet <benoit@irqsave.net>

Workaround a bytorder function conflict, and reconcile a declaration.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Tested-By: Benoit Canet <benoit@irqsave.net>

Some structures are duplicated; move the duplicates to a common header
<netinet/__in.h>.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Tested-By: Benoit Canet <benoit@irqsave.net>

Some structures are duplicated; deduplicate them.

A few are source-compatible but not binary-compatible; use the ones from
<bits/socket.h>.

Others are both source- and binary- compatible; put them in a new header
<sys/__socket.h> which is included from both.

Work around a problem with the byteorder functions/macros.

Signed-off-by: Avi Kivity <avi@cloudius-systems.com>
Tested-By: Benoit Canet <benoit@irqsave.net>

Used somewhere within libcurses, so provide an implementation.

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>

The README contained out-of-date examples of how to run things in OSv.
Fixed those.

BTW, Much of the contents of the README don't really belong there. We already
have separate documents for debugging in OSv, and how to compile C/C++
code for OSv, and these should probably be in documentation/ in the
git repository, instead of in a Wiki or Google docs.

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>

This patch adds a few simple terminal-related libc functions that ncurses
requires (needed to run curses-based applications on OSv).

Signed-off-by: Nadav Har'El <nyh@cloudius-systems.com>

Allow specify test names to testrunner such as testrunner.so tst-foo1.so
tst-foo2.so to run tst-foo1 and tst-foo2 only in the order they are
specified. This does not change the default behavior that
cmdline=testrunner.so will run all tests under /tests dir.

This change can help developer to run the only test cases they need
quickly to verify new feature or find possible regressions.

Signed-off-by: Yang Bai <hamo.by@gmail.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Exit tracepoints are useful to record errors, and also for timing the
mmap operation.

Signed-off-by Pekka Enberg <penberg@cloudius-systems.com>

The page_size constant is not used in the code so lets just remove it.

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

Added missing bench.jar file back to the image.
Fixed an obsolete description in the README file.

Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>

Fork project on github will cause submodule trying to
fetch submodule under fork user not cloudius-system.

Signed-off-by: Yang Bai <hamo.by@gmail.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

In preparation for enabling demand paging, enable sleeping in fault
context by using a per-thread exception stack for normal faults and
per-CPU exception stack for nested faults.

Avi Kivity explains:

  Before [demand paging] can even hope to work, we need to enable
  sleeping in fault context.  Right now each cpu has its own exception
  stack, which leads immediately to stack corruption:

  thread 1 faults
  enters exception stack
  tries to take mutex
  scheduler switches to thread 2
  thread 2 faults
  enters same exception stack

  So we need to switch stacks.  This can be done in the same way as for
  interrupt stacks (see thread::switch_to()).

Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>