This patch adjusts the 'extract_initcall_order' utility to the changed
initcall symbol syntax introduced in Linux by the following commit:
https://github.com/torvalds/linux/commit/a8cccdd9
It uses an additional sed step to strip away the kmod prefix,
__COUNTER__, and __LINE__ information so that the symbol names match
those of earlier kernel versions.
Issue #4188
This patch enables the tool/dde_linux/create_dummies tool to operate on
a out-of-tree build directory. The Linux source tree is determined by
examining the build directory's Makefile.
Issue #4188
The new tool `extract_initcall_order` generates a header file out of a
Linux kernel build, which provides a sorted array with the initcall function
names of the kernel build. The order states the order in which the initcall
have to be called. It gets extrated out of the Linux kernel System.map.
Fixes#4172
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
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
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 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
This new runscript demonstrates how a file can be overwritten by vfs
import with the flag overwrite set to false. This is due to a bug
in lx_fs that is not propagating an ernno EEXIST syscall error.
Issue genodelabs#4104
Until now, Genode's Linux system call bindings were based on original
Unix system calls that were later superseded by more flexibile variants.
E.g., 'openat' is a modern version of 'open'. Even though Linux upholds
the compatiblity with the original versions for existing architectures
like x86, the legacy syscalls are absent for the recently added AARCH64
architecture. A good overview of the system calls accross the prominent
architectures can be found at
https://chromium.googlesource.com/chromiumos/docs/+/master/constants/syscalls.md
This patch updates Genode's syscall bindings to avoid legacy versions,
thereby easing the support for AARCH64. The used "modern" versions
were introduced back in Linux version 2 days. So we are fine to rely
on them.
The patch slightly changes the signature for lx_stat because this system
call is merely used to check for the existance of a file and its size.
The new name 'lx_stat_size' draws a closer connection to its use case.
That said, the stat syscall has not been updated to the modern statx
since statx is still a fairly recent addition.
Issue #4136
I created a test program which stresses the interplay between libc,
pthreads and vfs_pipe and may detect regressions.
The program starts a thread that spawns a bunch of workers, sends and
receives data to them through a pipe. When all data of a worker is
collected, the worker is finished (join()) and a new worker is started.
Both the number of bytes sent to the worker and the size of its
answer are random.
Issue #3967
- build debug version of core and bootstrap found under
_var/run/<runscript>.core_ (.bootstrap). This is a regression when
switching from object to archive library linkage of core.
fixes#4027
Instruct bender to enable Intel HWP on supported CPUs unconditionally
to gain more insight by using the feature most prominently in Sculpt.
Fixes#4040.
With this patch, the build directory's CCACHE configuration is applied
to the building of depot archives when using the --depot-auto-update
feature.
Note that this is effective only when resetting the hash files before
building so that each depot-auto-update results in the same-named
versions. Otherwise, the include paths (that include the version name as
part of the path) make cache hits impossible.
Issue #4004
This commit complements issue #4004 with support for the depot/create
tool. If CCACHE=1 is specified at the command line, the build directory
for building a binary archive is configured with 'CCACHE := yes'.
Do not link base and core libraries into on large relocatable .o file,
which is linked later to core - causing long link times. Create an
independent library archive out of the base and core libraries that can
be linked faster.
issue #4027
- remove Spike/BBL support in favour of Qemu (>=4.2.1)
- add 'riscv_qemu' board, remove 'spike' board'
- update to privileged ISA v1.10 (from v1.9.1)
- use direct system calls for privileged core threads (they call into
the kernel and don't use mode changing system calls, i.e. 'ecall',
semantics)
- use 'OpenSBI' semtantics for SBI calls (to machine mode) instead of
BBL
issue #4012
This patch simplifies the use of ccache with the build system. Up until
now, each developer had to set up the ccache hooks manually, adjust the
PATH variable, and customize the etc/tools.conf in each build directory.
With the patch, ccache can be enabled by un-commenting a single line in
the etc/build.conf file.
Fixes#4004
This patch moves the bootstrap-link-address information from the
tool/run/boot_dir/hw file to board-specific property files that can be
accessed by using the board as key. This eliminates the need to
customize boot_dir/hw when hosting board-support in an external
repository.
Fixes#3998
This patch allows for supplementing the existing run-tool plugins with
additional plugins hosted inside a repository. E.g., it enables the run
tool to find world/tool/run/boot_dir/hw automatically.
Fixes#3993
