If there is no debug/core-<kernel>.o library available, e.g., when
running a scenario in a fresh build directory where core is provided
via a depot package, the build_core_image step of the run tool was
canceled in the past, when trying to access the non-existing library.
This commit changes the semantic of build_core_image to link a core
binary with debug symbols only when the designated library is in place.
This fixup is related to issue #2339
* introduce new syscall (core-only) to create privileged threads
* take the privilege level of the thread into account
when doing a context switch
* map kernel segment as accessable for privileged code only
Ref #2091
* introduces central memory map for core/kernel
* on 32-bit platforms the kernel/core starts at 0x80000000
* on 64-bit platforms the kernel/core starts at 0xffffffc000000000
* mark kernel/core mappings as global ones (tagged TLB)
* move the exception vector to begin of core's binary,
thereby bootstrap knows from where to map it appropriately
* do not map boot modules into core anymore
* constrain core's virtual heap memory area
* differentiate in between user's and core's main thread's UTCB,
which now resides inside the kernel segment
Ref #2091
In the image.elf file, the very last boot module is followed
by arbitrary other core-local data. Since those boot modules are
exported as page-granular dataspace to the outside of core via core's
ROM service, we need to ensure that the last page is padded with zeros.
When building Genode on a Linux system running in a Xen Dom0, the 'xen'
run target can run a Genode scenario in a Xen DomU.
Usage: in build/x86_*/etc/build.conf, define:
RUN_OPT = --include boot_dir/$(KERNEL) --include image/iso --include power_on/xen --include log/xen --include power_off/xen
The Xen DomU runs in HVM mode and loads Genode from an ISO image. Serial
log output is printed to the console and graphical output is shown in an
SDL window.
The Xen DomU ist managed using the 'xl' command line tool and it is
possible to add configuration options in the 'xen_args' variable in a run
script. Common options are:
- disabling the graphical output:
append xen_args { sdl="0" }
- configuring a network device:
append xen_args { vif=\["model=e1000,mac=02:00:00:00:01:01,bridge=xenbr0"\] }
- configuring USB input devices:
append xen_args { usbdevice=\["mouse","keyboard"\] }
Note: the 'xl' tool requires super-user permissions and interactive
password input can be troublesome in combination with 'expect' and is not
practical for automatic tests. For this reason, the current implementation
assumes that no password input is needed when running 'sudo xl', which can
be achieved by creating a file '/etc/sudoers.d/xl' with the content
'user ALL=(root) NOPASSWD: /usr/sbin/xl'
(where 'user' is the Linux user name).
Fixes#2504
This patch enables one to supply a list of arguments to
'install_config'. The arguments appear concatenated in the resulting
config file. This is useful for embedding dynamically generated content
into an otherwise static configuration. For example, in the following
config, the 'pkg' attribute of the '<query>' config node is defined by
the return value of the 'query_pkg' function:
install_config {
<config>
...
<start name="depot_query">
...
<config>
<query pkg="genodelabs/pkg/} [query_pkg] {"/>
</config>
</start>
</config>}
relocation is required, to avoid overlapping phdr in the elf binaries, but
sel4 will fail to boot if bender relocates the images at the end of physical
memory. Limit the physical relocation address to a fixed 256M value, so that
sel4 will work.
Issue #2451
The former use of 'arm_v7' as architecture was too unspecific. Depot
binary archives for Cortex-A8/A9 platforms should be generated for
the 'arm_v7a' architecture to define the required compile flags
(i.e., -march).
We do not have debug symbols in the bin/ binaries anymore. Thus, use the
debug/ binaries instead. We now have kernel specific binary names for
ld.lib.so and some others. Adapt, to this fact as well. For doing so
without unnecessary output, provide a new parameter "silent" at the
"kernel_specific_binary" procedure.
Ref #2398
Previously, the debugging version of the core image
(<build_dir>/var/run/<run_name>.core) was created by the run tool from
the common core object file
(<build_dir>/var/run/<run_name>/core-<kernel>.o). This object file,
however, was already stripped by the build system and thus didn't
contain debug info anymore. The build system also creates an unstripped
version in <build_dir>/debug/core-<kernel>.o, so we now use this one
for <build_dir>/var/run/<run_name>.core.
Ref #2254
This way, files copied from the depot are incorporated in addition to
the files explicitly specified as boot modules.
The patch also adds an automatic check for the validity of the XML
syntax of boot modules ending with '.config'.
Issue #2339
Run scripts can use the new 'import_from_depot' function to incorporate
archive content from the depot into a scenario. The function must be
called after the 'create_boot_directory' function and takes any number
of pkg, src, or raw archives as arguments. An archive is specified as
depot-relative path of the form <user>/<type>/name. Run scripts may
call 'import_from_depot' repeatedly.
An argument can refer to a specific version of an archive or just the
version-less archive name. In the latter case, the current version (as
defined by a corresponding archive recipe in the source tree) is used.
If a 'src' archive is specified, the run tool integrates the content of
the corrsponding binary archive into the scenario. The binary archives
are selected according the spec values as defined for the build directory.
As of now, only x86_32 and x86_64 are supported by the 'depot_spec'
function.
Issue #2339
By installing the core object to bin/, we follow the same convention as
for regular binaries. This, in turn, enables us to ship core in a
regular binary archive. The patch also adjusts the run tool to pick up
the core object from bin/ for the final linking stage.
'unzip' can uncompress and load raw multiboot images and ELF files.
Usage together with the PXE bootloader ease life running the muen hypervisor
together with a Genode/x86_64 VM, where the raw boot image is typically quite
large.
Ref #2358
This enables to use append_if like the append command in the following
situation.
proc optional_binary {} {...}
append_if $optional config {
<start name="} [optional_binary] {">
...
}
Put the initialization of the cpu cores, setup of page-tables, enabling of
MMU and caches into a separate component that is only used to bootstrap
the kernel resp. core.
Ref #2092
Instead of implicitly asking for core's link address when linking
core within the run tool, deliver it explicitly to the build_core
routine. Thereby we gain the freedom to use the build_core tool for
different targets like core, and bootstrap.
Ref #2092
Alexander Boettcher
Stefan Kalkowski
Norman Feske
Emery Hemingway
Sebastian Sumpf
Christian Prochaska
Alexander Senier
Josef Söntgen
Christian Helmuth
Adrian-Ken Rueegsegger
Martin Stein