'check_installed' takes a command name as argument and tries to call 'which' in
order to find the command path. If that does not succeed, paths like '/sbin' are
'/usr/sbin' searched. On success the absolute path of the command is returned,
on failure 'exit' is called with an error message.
Issue #1048
Previously we used to many registers in syscalls with much arguments
to build with optimization level O0. Additionally this fix fastens the
userland backend of syscalls.
All the pre- and post-processing of the startup lib around the main
function of a dynamic program is now done by LDSO. Hence LDSO directly
calls the main function of the program.
Issue #1042
This is needed later when eliminating the need for a startup lib in
dynamic programs to enable LDSO to call ctors and dtors of the program.
Issue #1042
After some research we found that the stack pointer on ARM platforms must be
at least double word aligned (See: "Procedure Call Standard for the ARM
Architecture" - 5.2.1.1). Since a 'call' on ARM will not result in a stack pointer
change (like on x86), the current behavior resulted in a 4 Byte aligned stack
only.
Follow up to #1043
This commit generalizes the bit array in 'base/util/bit_array.h',
so that it can be used in a statically, when the array size is known
at compile time, or dynamically. It uses the dynamic approach of the
bit array for a more generalized version of the packet allocator,
formerly only used by NIC session clients. The more generic packet
allocator is used by the block cache to circumvent the allocation
deadlock described in issue #1059.
Fixes#1059
Base libraries are already contained within ldso.lib.so. Remove unnecessary
filtering from 'dep_lib.mk', make ldso depend on base libs.
Issue #1017
Issue #989
This patch make the handling of resizing the virtual framebuffer more
consistent. Liquid_fb keeps track of two sizes. The "next size" is the
size of the framebuffer handed out via the next call of 'dataspace'.
The "designated size" is the size as demanded by the user. The latter
size may be updated more often than the "next" size, depending on the
responsiveness of the framebuffer client to mode-change signals.
The patch also removes the synchronization with refresh calls because
the synchronization made the flickering artifacts worse when executing
nitpicker within liquid_fb. So it was not properly working anyway.
In the future, we might reimplement such a synchronization mechanism
when switching to the server API.
Issue #1056
As the initial main-thread stack is not used for the whole main-thread life
anymore but only for the initialization of the Genode environment it can be
downsized to 32Kb for all architectures.
ref #989
For a main thread a thread object is created by the CRT0 before _main gets
called so that _main can already run in a generic environment that, e.g.,
catches stack overflows as a page-fault instead of corrupting the BSS.
Additionally dynamic programs have only one CRT0 - the one of the LDSO -
which does the initialization for both LDSO and program.
ref #989
Normally for intptr_t the printf format PRIiPTR should be used. As Genode
printf doens't support this format we cast it to long int (intptr_t is int
for 32 bit and long int for 64 bit).
ref #989
This patch adds accessors to obtain the buffer of an attribute value,
which is useful to avoid the copying-out of such information by
maintaining pointers into the XML string as meta data.
There exist different default setups for a specific autoconf version:
* autoconf
* autoconf$(VERSION)
* autoconf-$(VERSION)
As of now, only the second option is recognized by the check in tool_chain.
This patch ensures that if one of those is present in the correct
version, it will be found and used in the build process.
Fixes#1053.
With this patch, the liquid_fb title bar height gets reserved at the top of the
screen, so if a Qt application wants to position a window at (0,0), there's
still enough space to show the title bar above.
Issue #1054.
