Commit graph

10 commits

Author SHA1 Message Date
Kumar Gala
9b4298c20d arm: Convert DT_CCM_* to new devicetree.h macros
Convert various DT_CCM_* macros to use DT_CHOSEN(zephyr_ccm) and
associated macros from devicetree.h.

We remove CCM references from cortex_a and cortex_r linker scripts as
its only a feature on Cortex-M STM32 SoCs.

Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
2020-04-26 06:04:46 -05:00
Andrew Boie
28be793cb6 kernel: delete separate logic for priv stacks
This never needed to be put in a separate gperf table.
Privilege mode stacks can be generated by the main
gen_kobject_list.py logic, which we do here.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
2020-03-17 20:11:27 +02:00
Abhishek Shah
f587c5f019 arch: arm64: mmu: Add zephyr execution regions
Add zephyr execution regions(text, rodata, data, noinit, bss, etc.)
with proper attributes to translation tables.
Linker script has been modified a little to align these sections to
minimum translation granule(4 kB).

With this in place, code cannot be overwritten accidently as it is
marked read only. Similarly, execution is prohibited from data/RW
section as it is marked execute-never.

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-02-20 17:24:59 +02:00
Abhishek Shah
6429dd81bf arch: arm: aarch64: linker.ld: move vector table to text segment
Following changes are done:
- The vector table should be placed in text segment.
- Removed Vector relay table related entries as it is
  only applicable to aarch32.
- irq_vector_table contains ISR pointers - should be placed
  in rodata segment.
- put openocd_dbg in rodata and skip adding <linker_relocate.ld>
  as CONFIG_CODE_DATA_RELOCATION is not defined for aarch64
  currently (add later if needed).

Fixes: #22673
Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-02-20 17:24:59 +02:00
Abhishek Shah
1d59d3afed arch: arm: aarch64: linker: Discard plt and got sections
plt and got sections are used for dynamic linking which
is not supported in Zephyr.

Reference: #11953
commit 3ba7097e73 ("linker: add orphan sections to linker script")

Signed-off-by: Abhishek Shah <abhishek.shah@broadcom.com>
2020-02-20 17:24:59 +02:00
Stephanos Ioannidis
f2e2b66215 arch: arm: aarch64: Fix _vector_end symbol placement
This commit relocates the `_vector_end` symbol that was previously
placed after the OpenOCD sections to before these sections, as the
OpenOCD debug sections are not part of the "vector table."

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2020-02-12 15:51:58 +01:00
Stephanos Ioannidis
c4cb84140f arch: arm: aarch64: linker.ld: Fix ROM section names
This commit fixes the improper naming of the ROM sections.

1. Rename the first ROM section, which was previously named using the
  `_TEXT_SECTION_NAME` definition, to `rom_start`, as this section does
  not actually represent the text section.

2. Rename the second ROM section, which was previously named
  `_TEXT_SECTION_NAME_2` which supposedly refers to the definition of
  the same name that does not exist, to `_TEXT_SECTION_NAME`. Note that
  this is indeed the section that contains the text section from the
  source image.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2020-02-12 15:51:58 +01:00
Stephanos Ioannidis
e619e36b1b arch: arm: aarch64: linker.ld: Clean-up
This commit cleans-up the linker.ld file for the AArch64 arch.

* Convert all TAB characters to SPACE.
* Fix insane placement of curly brackets.
* Fix overall text alignments.
* Remove the special handlings for the Cortex-M devices that were
  copied from `include/arm/aarch32/cortex_m/scripts/linker.ld`.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2020-02-12 15:51:58 +01:00
Stephanos Ioannidis
71362ddf5d arch: arm: aarch64: linker.ld: Remove redundant text section offset
This commit removes the redundant text section offset specification in
the AArch64 linker script.

The text section offset is already specified by the
`text_section_offset.ld`, which is included by
`arch/common/CMakeLists.txt`.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
2020-02-10 20:04:21 +01:00
Carlo Caione
1be0c05311 arch: arm64: Introduce ARM64 (AArch64) architecture
Introduce the basic ARM64 architecture support.

A new CONFIG_ARM64 symbol is introduced for the new architecture and new
cmake / Kconfig files are added to switch between ARM and ARM64.

Signed-off-by: Carlo Caione <ccaione@baylibre.com>
2020-02-01 08:08:43 -05:00