genode/repos/base
Piotr Tworek d610f9f4f1 Fix some signed/unsigned implicit conversions.
Fix some trivial cases where the signedness of the constant value does
not match the signedness of type the code expects to see. GCC can be
asked to warn about those by passing Wsign-covnersion flag.

Issue #4354
2022-01-19 12:35:48 +01:00
..
board base-hw: Remove 'riscv_qemu' and move to 'genode-riscv' 2021-12-17 15:04:48 +01:00
etc tool_chain: update gcc to version 10.3.0 2021-05-28 14:15:26 +02:00
include Fix some signed/unsigned implicit conversions. 2022-01-19 12:35:48 +01:00
lib base: introduce Allocator::try_alloc 2021-11-29 15:11:52 +01:00
mk mk: add golang as target for compilation 2022-01-19 12:35:48 +01:00
ports imx8q_evk: remove board support from repository 2021-11-29 15:10:51 +01:00
recipes depot: update recipe hashes 2021-12-17 15:06:38 +01:00
run imx8q_evk: remove board support from repository 2021-11-29 15:10:51 +01:00
src Fix some signed/unsigned implicit conversions. 2022-01-19 12:35:48 +01:00
xsd base_types.xsd: allow session labels of length 0 2018-11-16 14:37:19 +01:00
README core: add information about infos provided by core 2017-06-29 11:59:52 +02:00

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.