2021-01-15 |
CMake: Add support for Arm's CM3DS_MPS2 target
Hugues Kamba
committed
on 15 Jan 2021
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2020-09-10 |
stack: armc: Workaround config passing bug
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Workaround a bug where the boot stack size configuration option is not
passed on to armlink, the Arm Compiler's linker. Prefer
MBED_CONF_TARGET_BOOT_STACK_SIZE if present, as this is what the
configuration system should provide. Fall back to MBED_BOOT_STACK_SIZE
if MBED_CONF_TARGET_BOOT_STACK_SIZE is not defined, as in the case of
buggy tools. If both MBED_CONF_TARGET_BOOT_STACK_SIZE and
MBED_BOOT_STACK_SIZE are not defined, then we fall back to a hard-coded
value provided by the linkerscript. See
https://github.com/ARMmbed/mbed-os/issues/13474 for more information.
Jaeden Amero
committed
on 10 Sep 2020
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Use boot stack size from config system
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To allow overriding of the boot stack size from the Mbed configuration
system, consistently use MBED_CONF_TARGET_BOOT_STACK_SIZE rather than
MBED_BOOT_STACK_SIZE.
Fixes #10319
Jaeden Amero
committed
on 10 Sep 2020
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2019-10-23 |
Clean up ARM toolchain heap+stack setup in targets
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ARM Compiler 6.13 testing revealed linker errors pointing out
conflicting use of `__user_setup_stackheap` and
`__user_initial_stackheap` in some targets. Remove the unwanted
`__user_initial_stackheap` from the targets - the setup is
centralised in the common platform code.
Looking into this, a number of other issues were highlighted
* Almost all targets had `__initial_sp` hardcoded in assembler,
rather than getting it from the scatter file. This was behind
issue #11313. Fix this generally.
* A few targets' `__initial_sp` values did not match the scatter
file layout, in some cases meaning they were overlapping heap
space. They now all use the area reserved in the scatter file.
If any problems are seen, then there is an error in the
scatter file.
* A number of targets were reserving unneeded space for heap and
stack in their startup assembler, on top of the space reserved in
the scatter file, so wasting a few K. A couple were using that
space for the stack, rather than the space in the scatter file.
To clarify expected behaviour:
* Each scatter file contains empty regions `ARM_LIB_HEAP` and
`ARM_LIB_STACK` to reserve space. `ARM_LIB_STACK` is sized
by the macro `MBED_BOOT_STACK_SIZE`, which is set by the tools.
`ARM_LIB_HEAP` is generally the space left over after static
RAM and stack.
* The address of the end of `ARM_LIB_STACK` is written into the
vector table and on reset the CPU sets MSP to that address.
* The common platform code in Mbed OS provides `__user_setup_stackheap`
for the ARM library. The ARM library calls this during startup, and
it calls `__mbed_user_setup_stackheap`.
* The default weak definition of `__mbed_user_setup_stackheap` does not
modify SP, so we remain on the boot stack, and the heap is set to
the region described by `ARM_LIB_HEAP`. If `ARM_LIB_HEAP` doesn't
exist, then the heap is the space from the end of the used data in
`RW_IRAM1` to the start of `ARM_LIB_STACK`.
* Targets can override `__mbed_user_setup_stackheap` if they want.
Currently only Renesas (ARMv7-A class) devices do.
* If microlib is in use, then it doesn't call `__user_setup_stackheap`.
Instead it just finds and uses `ARM_LIB_STACK` and `ARM_LIB_HEAP`
itself.
Kevin Bracey
committed
on 23 Oct 2019
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2019-01-08 |
[ARM_SSG] Support boot stack size configuration option
Przemyslaw Stekiel
committed
on 8 Jan 2019
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2018-05-03 |
Merge pull request #6713 from theotherjimmy/arm-no-asm-inc
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Drop include paths for ARM assembler
Martin Kojtal
authored
on 3 May 2018
GitHub
committed
on 3 May 2018
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2018-04-23 |
Use rel path for the ONLY arm asm include statement
Jimmy Brisson
committed
on 23 Apr 2018
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2018-04-20 |
CM3DS: merge the two system header files into one
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This commit does not bring functional changes.
Here is the list of changes:
- merge CMSDK_CM3DS.h and SMM_MPS2.h into CM3DS.h
- remove unused code
- split copyright headers from first comment of each file
Change-Id: I79b7ee01689439b7d2fde9d13035a5edf17f69ff
Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>
Hugues de Valon
committed
on 20 Apr 2018
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2018-03-12 |
CM3DS: switch to larger memories for code and data
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This patch changes the linker files and defines to use the ZBT SSRAM
instead of the FPGA Block RAM for code and data.
The section 4.1.1, Code and RAM memory map, of the CM3DS Eval RTL and
testbench user guide explains the available memories.
This switch improves code memory from 256 kB to 4 MB and data memory
from 128 kB to 4 MB.
However, the ZBT SSRAM1 for code memory begins at 0x00400000 while the
processor can only boot at address 0x00000000 which means that it
expects the vector table to be at that address. That is why we have to
create 2 load regions in the linker scripts: one with only the vector
table at address 0x0 and one with code + data at address 0x00400000.
Because of these two load regions, linker will produce different
behaviours:
* GCC_ARM and IAR will only create 1 binary with both load regions
padding with 0 in between. The binary will then be very large (at least
4 MB) and the flash process will take longer.
* ARM and ARMC6 will create 2 binaries for the two load regions. The
load addresses of the two binaries can be written in the images.txt file
on the MPS2 board. You can also use the --bincombined option of fromelf
utility to produce only 1 large binary.
This patch also adds the memory_zones.h file to try to put in common all
the memory addresses that were previously hard coded in the linker
scripts / startup files.
With that patch in, the simplest option is to directly use the .elf file
with the MPS2, which is only possible with mbb_v225.ebf and more recent
firmwares. It will now be the default for CM3DS.
This commit works with greentea thanks to the now merged pull request
ARMmbed/htrun#181 in order to copy .elf file to the MPS2 board.
Signed-off-by: Hugues de Valon <hugues.devalon@arm.com>
Hugues de Valon
committed
on 12 Mar 2018
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2017-09-11 |
Enable Compiling with ARMC6 across all targets
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remove duplicate sys.cpp
Jimmy Brisson
committed
on 11 Sep 2017
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2017-06-20 |
Upcase all assembler file extensions
Jimmy Brisson
committed
on 20 Jun 2017
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2017-06-09 |
Enable IAR and GCC_ARM compiler for CM3DS MPS2
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1. Add startup code and linker script for IAR and
GCC_ARM compilers.
2. Enable IAR and GCC_ARM compilers in targets.json.
Change-Id: I742a89ae73a4e5ede980a8af0821c3f0e5a461ef
Signed-off-by: Mate Toth-Pal <mate.toth-pal@arm.com>
mattot01
authored
on 1 Jun 2017
Marc Moreno Berengue
committed
on 9 Jun 2017
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Create CM3DS_MPS2 target
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- Creates new target in targets.json
- Creates device specific files under ARM_SSG/CM3DS_MPS2 directory
- Driver layer files under CM3DS_MPS2 are based on Beid target
- Device specific files under CM3DS_MPS2/device are based on CMSIS_5 and Beetle
Change-Id: I29ea7a7f42b11cf25b516cce4b9255ab828ca019
Signed-off-by: Tamas Kaman <Tamas.Kaman@arm.com>
Signed-off-by: Marc Moreno <marc.morenoberengue@arm.com>
Tamas Kaman
authored
on 6 Apr 2017
Marc Moreno Berengue
committed
on 9 Jun 2017
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