genode

History

Norman Feske e0e9b3b32e init: close all sessions of exited children With this patch, init responds to the exit of a child by closing all sessions of the child. E.g., if a child is a GUI application, its nitpicker session is closed at the time of exit, not at the time when the start node disappears from init's configuration. Since this change requires a modification of the 'Genode::Child' class, it takes the chance to make the child-destruction less brutal. The new version ensures that all threads of the destructed subsystem are destructed before other sessions, in particular PD sessions. This eliminates spurious page-fault warnings during the child destruction. On Fiasco.OC, closing the CPU session of a thread while being called by the thread causes a deadlock. Hence, we skip the eager destruction of CPU sessions on this kernel. Related to issue #2659		2018-02-09 13:31:27 +01:00
..
etc	Let default tools.conf cover each architecture	2016-07-15 11:38:26 +02:00
include	init: close all sessions of exited children	2018-02-09 13:31:27 +01:00
lib	init: close all sessions of exited children	2018-02-09 13:31:27 +01:00
mk	Enable use of 'check_abi' in build system	2018-01-17 12:14:42 +01:00
ports	tool: use grub2 instead of grub1 for iso boot	2017-11-30 11:23:01 +01:00
recipes	depot: update recipe hashes	2018-01-17 12:14:44 +01:00
run	Adapt sub_rm test to current Linux 32-bit	2017-11-06 13:57:23 +01:00
src	init: close all sessions of exited children	2018-02-09 13:31:27 +01:00
README	core: add information about infos provided by core	2017-06-29 11:59:52 +02:00

README

This is generic part of the Genode implementation. It consists of two parts:

:_Core_: is the ultimate root of the Genode application tree
  and provides abstractions for the lowest-level hardware resources
  such as RAM, ROM, CPU, and generic device access. All generic parts of Core
  can be found here - for system-specific implementations refer to the
  appropriate 'base-<system>' directory.

:_Base libraries and protocols_: that are used by each Genode component
  to interact with other components. This is the glue that holds everything
  together.

_Core_ may export information about the hardware platform by an ROM
called 'platform_info'. Depending on the platform, e.g. ARM or x86 or riscv,
and depending on the boot mode and boot loader and kernel, some nodes may not
be populated.

!<platform_info>
! <acpi revision="2" rsdt="0x1fe93074" xsdt="0x1fe930e8"/>
! <boot>
!   <framebuffer phys="0x7300000" width="1024" height="768" bpp="32"/>
! </boot>
!</platform_info>

If the ACPI RSDT and XSDT physical pointer is reported by the used kernel
and/or bootloader, _Core_ may provide this information by the ROM.

If the graphic device is initialised and can be directly used by a framebuffer
driver, _Core_ may provide the physical pointer to the framebuffer, the
resolution and color depth in bits.