Commit Graph

8 Commits

Author SHA1 Message Date
Maksim Masalski
dbfa5a04de coding guidelines 11.9: fix literal zero as the null-ptr-constant
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>
2021-05-12 21:51:40 -04:00
Daniel Leung
2c6da987cd lib/os: cbprintf_packaged: simplify rodata check
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>
2021-04-28 22:25:42 +02:00
Carlo Caione
3539c2fbb3 arm/arm64: Make ARM64 a standalone architecture
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>
2021-03-31 10:34:33 -05:00
Krzysztof Chruscinski
65474d8d67 lib: os: cbprintf: Improvements for sparc
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>
2021-03-29 14:08:41 +02:00
Krzysztof Chruscinski
c26e08a51f lib: os: cbprintf: Add alignment offset to packaging
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>
2021-03-29 14:08:41 +02:00
Krzysztof Chruscinski
9966d85c0a lib: os: cbprintf: Add alignment check to cbprintf_package
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>
2021-03-11 09:54:39 +01:00
Krzysztof Chruscinski
47a565367e lib: os: cbprintf: Add static packaging
Extend cbprintf with static packaging.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>
2021-03-11 09:54:39 +01:00
Nicolas Pitre
14e5e98822 lib: cbprintf: add support for deferred formatting
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>
2021-03-05 09:29:35 +01:00