this implements simple target detection borrowing from the
idea previously in Makefile.
Adds basic recognition of passed envs ARCH, CROSS_PREFIX,
along with CC, LD, CXX, HOST_CXX.
HOST_CXX is necessary because the compiler is used to
produce and run binaries at build time.

Signed-off-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

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

Conflicts:
	arch/x64/processor.hh
	drivers/pci-function.cc

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

Some more coding style issues collected from reviews over the last few
days (mostly from Avi).

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

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Simple polling PIO IDE driver.

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Adds insl and outsl to perform PIO on IDE driver.

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Add enum for PCI class/subclass.

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Add methods to get base_class and sub_class to find IDE device.

Signed-off-by: Takuya ASADA <syuu@cloudius-systems.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

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

Conflicts:
	build.mk
	external/x64/acpica
	external/x64/gcc.bin
	external/x64/glibc-testsuite
	external/x64/glibc.bin
	external/x64/misc.bin
	external/x64/openjdk.bin

The current code the trace_log - a 4MB array which stores tracepoint data -
is a global array. In other words, as explained in issue #96, it is part
of the BSS, which always adds 4MB memory usage to OSv - whether or not
tracepoints are actually enabled.

This patch changes trace_log to be a dynamically-allocated array, allocated
when the first tracepoint is enabled (e.g., with a --trace=...  boot
option).

This will also allow us (in the future) to choose the size of the trace log
at run time rather than compile time.

This patch reduces 4 MB of BSS (from 13MB to 9MB), and correspondly lowers
our minimum memory use by 4 MB. Whereas the minimum memory requirement of
the "rogue" image used to be 59 MB, now it is 55 MB.

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

First step towards moving x64-specific stuff into arch
subdirectories:

move the submodules in external/ to external/x64/,

rename amd64->x64 in opensolaris,

rename x86_64->x64 in include/api,

adapt build.mk to reference the updated paths,
and improve detection of include dirs and libs in the
external submodules.

Signed-off-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Avi Kivity <avi@cloudius-systems.com>

Hopefully this will reduce porting efforts.

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

bba6263 apps: Added netperf3 module
19d0873 Fix "haproxy" module
09f8699 apps: drop obsolete netperf patch

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

In the end, all uses ended up being done by the object itself. Remove
the public accessors.

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

list_time can currently be sorted by duration. Since we read things from the
buffer in buffer order to construct the trace list, the list is already
quasi-sorted by its timestamp key: it is per-cpu sorted, but globally we have
not a lot of guarantees and some samples will get reordered.  It would be
useful to have a list that is strongly sorted as well.

Reviewed-by: Tomasz Grabiec <tgrabiec@gmail.com>
Signed-off-by: Glauber Costa <glommer@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

I think the current code is broken in 'GB' case because it trims
memory string twice.

Spotted during skimming over the file.

Reviewed-by: Glauber Costa <glommer@cloudius-systems.com>
Reviewed-by: Nadav Har'El <nyh@cloudius-systems.com>
Signed-off-by: Tomasz Grabiec <tgrabiec@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

It is useful when trying to detect IP assigned to guest using the arp
table: `arp -n`

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

Currently, a file path always need to be specified as an argument,
so let's make things easier by providing a default file path.

Reviewed-by: Glauber Costa <glommer@cloudius-systems.com>
Signed-off-by: Raphael S. Carvalho <raphaelsc@cloudius-systems.com>
Signed-off-by: Pekka Enberg <penberg@cloudius-systems.com>

The first entry in a backtrace tends to be the point in which we arrived at the
trace, which is a logtrace function. That only clutters output, because that is
a long named function that is basically adding no meaningful information

While we could pop the first element unconditionally, that would not be robust
against function inlining by the compiler. We can also add more trace functions
in the future, so I'm popping elements in a loop until we're out of trace stuff
in the beginning of the backtrace.

Backtrace traces are a lot easier to follow with this patch.

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