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arm64: linker: define z_mapped_* symbols

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Add linker symbols corresponding to the start and end of the
mapped Zephyr image. This is not used by the ARM arch yet, but
is required to compile the core kernel MMU code.

Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
This commit is contained in:
Andrew Boie 2021-01-12 10:46:15 -08:00 • committed by Anas Nashif
commit 9559223c7b
1 changed files with 8 additions and 1 deletions
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9
include/arch/arm/aarch64/scripts/linker.ld
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@ -104,7 +104,9 @@ SECTIONS
SECTION_PROLOGUE(_TEXT_SECTION_NAME,,)
{
_image_text_start = .;
#ifndef CONFIG_XIP
z_mapped_start = .;
#endif
_vector_start = .;
KEEP(*(.exc_vector_table))
KEEP(*(".exc_vector_table.*"))
@ -210,6 +212,9 @@ SECTIONS
*/
. = ALIGN(_region_min_align);
_image_ram_start = .;
#ifdef CONFIG_XIP
z_mapped_start = .;
#endif
/* Located in generated directory. This file is populated by the
* zephyr_linker_sources() Cmake function.
@ -285,6 +290,8 @@ SECTIONS
_image_ram_end = .;
_end = .; /* end of image */
z_mapped_end = .;
z_mapped_size = z_mapped_end - z_mapped_start;
__kernel_ram_end = RAM_ADDR + RAM_SIZE;
__kernel_ram_size = __kernel_ram_end - __kernel_ram_start;