Cleanup and preparation commit for linker script generator.
Zephyr linker scripts provides start and end symbols for each larger
areas in the linker script.
The symbols _image_rom_start and _image_rom_end corresponds to the group
ROMABLE_REGION defined in the ld linker scripts.
The symbols _image_rodata_start and _image_rodata_end is not placed as
independent group but covers common-rom.ld, thread-local-storage.ld,
kobject-rom.ld and snippets-rodata.ld.
This commit align those names and prepares for generation of groups in
linker scripts.
The symbols describing the ROMABLE_REGION will be renamed to:
_image_rom_start -> __rom_region_start
_image_rom_end -> __rom_region_end
The rodata will also use the group symbol notation as:
_image_rodata_start -> __rodata_region_start
_image_rodata_end -> __rodata_region_end
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Added support for conversion from a standard package which contains
pointers to read only strings to fully self-contained (fsc) package.
Fsc package contains all strings associated with the package thus
access to read only strings is not needed to format a string.
In order to allow conversion to fsc package, standard package must
contain locations of all string pointers within the package. Appending
that information is optional and is controlled by flags parameter
which was added to packaging API. If option flag is set then
package contains header, arguments, locations of read only strings and
transient strings (each prefixed with string argument location).
Package header has been extended with field which contains number of
read only string locations.
A function for conversion to fsc package has been added
(cbprintf_fsc_package()).
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
File has next violations:
MISRA 11_9_a
Use NULL instead of literal zero (0) as the null-pointer-constant
MISRA 11_9_b
Literal zero (0) shall not be used as the null-pointer-constant
Signed-off-by: Maksim Masalski <maksim.masalski@intel.com>
NIOS2 is using _image_rodata_start/_end in its linker script
to mark the boundaries of rodata. So they no loner need
special treatment.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Split ARM and ARM64 architectures.
Details:
- CONFIG_ARM64 is decoupled from CONFIG_ARM (not a subset anymore)
- Arch and include AArch64 files are in a dedicated directory
(arch/arm64 and include/arch/arm64)
- AArch64 boards and SoC are moved to soc/arm64 and boards/arm64
- AArch64-specific DTS files are moved to dts/arm64
- The A72 support for the bcm_vk/viper board is moved in the
boards/bcm_vk/viper directory
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Unified define used for handling sparc case in static and
runtime packaging. Reworked macro for storing argument in
static packaging.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Added parameter to CBPRINTF_STATIC_PACKAGE which indicates buffer
alignment offset compared to CBPRINTF_PACKAGE_ALIGNMENT. When offset
is set to 0, macro assumes that input buffer is aligned to
CBPRINTF_PACKAGE_ALIGNMENT. When offset is positive, macro assumes
that buffer address is shifted by given number of bytes to
CBPRINTF_PACKAGE_ALIGNMENT alignment.
Extended cbprintf_package to use len argument as alignment offset
indicator when calculating length only (package pointer is null).
Features are not available for xtensa platform which seems to
require 16 byte alignment from the package. It is only an assumption
due to lack of the documentation and may be fixed in the future.
Feature allows to avoid unnecessary padding when package is part of
a message and preceeded by a header of a known size. For example,
message header on 32 bit architecture has 12 bytes, long doubles are
not used so cbprintf requires 8 byte alignment. Without alignment
offset indicator, package containing just a string with one argument
would need 4 byte padding after the header and 4 byte padding after
the package. Message would be 32 bytes long. With alignment offset
indication both paddings are not needed and message is only 24 bytes
long.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
Added validation of alignment to cbprintf_package. Error is returned if
input buffer is not aligned to the largest argument.
Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
In applications like logging the call site where arguments to
formatting are available may not be suitable for performing the
formatting, e.g. when the output operation can sleep. Add API that
supports capturing data that may be transient into a buffer that can
be saved, and API that then produces the output later using the
packaged arguments.
[ Documentation and commit log from Peter Bigot. ]
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
