ramfunc region is copied into RAM from FLASH region during XIP init. We
copy from the loadaddr of the region, and were previously loading to the
symbol __ramfunc_start. This is incorrect when using an MPU with
alignment requirements, as the __ramfunc_start symbol may have padding
placed before it in the region. The __ramfunc_start symbol still needs
to be aligned in order to be used by the MPU though, so define a new
symbol __ramfunc_region_start, and use that symbol when copying the
__ramfunc region from FLASH to RAM.
Fixes#75296
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
Fixes a mismatch between the cmake and ld linker scripts whereby
the cmake script was missing using the flash load size Kconfig
option (if it was said), which would result in images far larger
than they should have allowed to be
Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
This reverts commit f5eada5553.
Fixes#57590.
In order to fix incorrect program headers with CMAKE_LINKER_GENERATOR,
issue #59064 needs to be addressed first. Until then, revert to the
status quo from several versions back.
Signed-off-by: Grzegorz Swiderski <grzegorz.swiderski@nordicsemi.no>
The generated scripts don't include a definition for any symbol indicating
the end of statically allocated memory (such as "_end"). Add a shared cmake
fragment, ram-end.cmake, which contains the necessary instructions to
define _end and z_mapped_end consistently to align with the other sample
linker scripts.
Signed-off-by: Keith Packard <keithp@keithp.com>
Cleanup RAM layout so that the RAM_REGION is now in the RAM memory
region. Put .bss in RAM_REGION.
This means we have a proper program header for the RAM region.
As part of this extend zephyr_linker_symbol to allow it to take
an OBJECT paramater to specify the region to associate a symbol to.
Signed-off-by: Kumar Gala <kumar.gala@intel.com>
This commit updates all in-tree code to use `CONFIG_CPP` instead of
`CONFIG_CPLUSPLUS`, which is now deprecated.
Signed-off-by: Stephanos Ioannidis <stephanos.ioannidis@nordicsemi.no>
Currently when a node has a 'zephyr,memory-region' compatible and a
'zephyr,memory-region' string property, a new memory region is created
in the linker script.
Having a memory region without a section to place variables in could be
not that useful. With this patch we extend the memory-region mechanism
to also create sections.
The user can then place variables in the sections as usual by using for
example the GCC attributes.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
As already done for the regular linker script, dinamically generates the
memory regions with the 'zephyr,memory-region' compatible also when
using the cmake linker generator.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Fixes: #41435
The use of %<symbol>% works well in Linux and MacOS but when passed
to the linker script generator in Windows the %<symbol>% is processed
by the windows shell causing the value to disappear and thus an empty
value inside the generated ld linker script or scatter file.
This is fixed by using the @ character instead of the % character.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Remove the `NAME` function argument from `zephyr_linker_dts_memory` as
the name is now automatically derived from the devicetree node.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
The root cause of #38591 was region symbols being placed before the
section description for data region.
To support both schemes with the linker generator, a new
`SYMBOL SECTION` argument has been added to the zephyr_linker_group()
function.
This commit updates the arm/linker.cmake CMake linker file to use the
new `SYMBOL SECTION` argument for the data region group and text region
group so that those two groups now behave identical to the behavior when
using the cortex_m linker.ld template.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
This commit add devicetree memory regions added to arm/linker.cmake.
The following memory regions are now added to the generated linker
script and scatter file if they exists in the devicetree.
- chosen: zephyr,itcm
- chosen: zephyr,dtcm
- nodelabel: ti_ccfg_partition
- nodelabel: sram1
- nodelabel: sram2
- nodelabel: sram3
- nodelabel: sram4
- nodelabel: sdram1
- nodelabel: sdram2
- nodelabel: backup_sram
Also support for the itcm and dtcm section and their placement in
corresponding memory regions has been added.
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
This is the initial version of a Zephyr CMake linker file for the arm
architecture.
This file defines memory regions, groups, linker sections and symbols
for the arm architecture.
It also sources the common common-ram.cmake, common-rom.cmake,
debug-sections,cmake, and thread-local-storage.cmake.
It configure sections for SoC families using zephyr_linker_sources()
functions:
- nxp_imx
Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>
Daniel DeGrasse