Managing ssh event file descriptors was performed from two different
threads which could cause reallocation of structure used in other thread
in a call to 'poll' function.
Splitted initialization to parts and moved ssh event part into ssh loop.
Issue #4095
Moved creating ssh loop thread after initialization of wake up server
file descriptors to make sure that they will be properly handled even in
first loop run.
Issue #4095
The new tool `create_dummies` easily lists missing references,
while porting subsystems of the Linux kernel to Genode, e.g., device drivers.
Moreover it can automatically generate dummy implementations for functions
and global variables.
Fixes#4156
After update of stdcxx, either hardware (CPU) random sources are taken
or, if not available/insufficient, /dev/urandom is used.
Issue #3967
Issue #4094
For fs_file_systems, reads are limited to the size of the packets from the
File_system session. Hence, we cannot read the large files in one go.
This fix is particularly helpful for fonts_fs, as it enables including font
files from a File_system.
genodelabs/genode#4135
Comment in Linux sources:
Since an ethernet header is 14 bytes network drivers often end up with
the IP header at an unaligned offset. The IP header can be aligned by
shifting the start of the packet by 2 bytes. Drivers should do this
with:
skb_reserve(skb, NET_IP_ALIGN);
This is ensured when using netdev_alloc_skb_ip_align().
Issue #4094
This patch takes advantage of block transfer interrupts on Intel XHCI
controllers which is used during isochronous transfers. Because of a bug
in hardware (see usb_host_isoc_bei.patch header), this feature has been
disabled for Intel leading to up to 8000 interrupts/s for isochronous
transfer causing severe CPU consumption on Genode. With this commit we
lower host driver consumption to normal levels.
issue #4149
A Lx::Task is now associated to a USB device not the session any more.
This implies that a task lives as long as the device making it possible
to gracefully handle outstanding requests (i.e., synchronous) in case
the session has been closed.
issue #4149
The old port version contained '*.ali' files that were build with an older GCC
which led to problems when compiling packages that use the port with the new
GCC 10. The '*.ali' files of the new port version were generated with GCC 10.
Fixes#4145
When loading shared libraries via the 'Shared_object' interface display
all additionaly loaded libraries in case 'ld_verbose' is configured. Up
until now, only the loaded library was displayed. In order to determine
if a dependend library had arlready been loaded prior to loading the
'Shared_object' the reference counter is used.
fixes#4147
We used to export 'LC_COLLATE=C' for the environment of Genode tools. This was
meant to ensure that sorting is always done C-style and not dependent on the
users locale settings. This is required, for instance, to ensure that the same
archive always yields the same hash.
However, 'export LC_COLLATE=C' is not sufficient. It can be outruled by an
'LC_ALL' setting in the users environment. The manual of 'sort' recommends to
set 'LC_ALL=C' locally if you want reliable results and this is what this
commit does. Furthermore it removes the former 'export LC_COLLATE=C'
directives.
Note that I couldn't find a way to set 'LC_ALL' local to 'exec ... sort' in
TCL. This is why I set it global instead using TCLs 'env' array.
Note that the Make directive '$(sort ...)' and the TCL directive 'lsort',
unlike the Shell directive 'sort', are not affected by the users locale
settings.
Fixes#4144
The default size is on most kernels 512M. On OKL4 we have to use 800M,
because of the statically configured memory ranges in the OKL4 kernel.
By avoiding a specific amount of memory, the default Qemu memory sizes are
used.
Issue #4095
Revert GNU ld to the old behavior where sections with the same name in multiple
ld scripts are merged. Binutils 2.36.1 creates two sections with the same name.
Fixes#4126
Download gmp, mpc and mpfr with the download script provided by the
gcc source tree and let the gcc build system handle the build of these
libraries with the correct compile options. This fixes build issues on
armhf Linux and removes the need to maintain mpc and mpfr ports in
the Genode tree.
Issue #4094
The 'gprbuild' version which is provided by Ubuntu 18.04 has a bug
which prevents it from building 'ali2dep' with gcc/gnat 10. With
this commit, a newer 'gprbuild' version is built from source.
Issue #4094
This patch fixes a GCC-10 compile error. Even though the optimization
was quite effective - I measured a speedup of factor 2 - it is not all
that important for the overall application performance. In the nano3d
case, we are talking about 1 vs. 2 percent of CPU time.
Fixes#4140
The kernel-agnostic 'Trace::timestamp' function for arm_64 executes the
'mrs %0, pmccntr_el0' instruction, which is not permitted for user-level
programs on Linux. This patch shadows the generic timestamp.h header
with dummy that returns zero. This return value prompts the timeout
framework to disable the interpolation of time based on timestamps. This
avoid the illegal-instruction abort but comes with two llimitations:
First, time measurements are effectlively limited to a granulariry of 1
millisecond (deliberately constrained by the timer driver).
The quirk is applied when using the base-linux API. Should a generic
application (that uses the base API only) call 'Trace::timestamp'
directly, the illegal instruction is executed.
Issue #4136
This patch adds support for running Genode/Linux on the AARCH64
architecture.
- The kernel-agnostic startup code (crt0) had to be extended to
capture the initial stack pointer, which the Linux kernel uses
to pass the process environment. This is in line with the
existing startup code for x86_32 and x86_64.
- The link order of the host libraries linked to lx_hybrid
programs had to be adjusted such that libgcc appears at last
because the other libraries depend on symbols provided by
libgcc.
- When using AARCH64 Linux as host, one can execute run scripts
via 'make run/<script> KERNEL=linux BOARD=linux' now.
Issue #4136
When a DHCP packet is printed out, it first tries to determine the most
specific message type from the DHCP options and print its human-readable name
right after the protocol name. If finding the message type fails, the less
specific opcode is printed instead, but also in a human-readable way.
Fixes#4131
