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arch: arm: add option to define an NSC region

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This commit adds K-config options that allow the user to
signify an ARM Secure Firmware that contains Secure Entry
functions and to define the starting address of the linker
section that will contain the Secure Entry functions. It
also instructs the linker to append the NSC section if
instructed so by the user.

Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
This commit is contained in:
Ioannis Glaropoulos 2018-04-03 09:39:43 +02:00 • committed by Anas Nashif
commit db3f6aab02
4 changed files with 60 additions and 0 deletions
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9
include/linker/linker-defs.h
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@ -263,6 +263,15 @@ extern char __ccm_noinit_end[];
extern char __ccm_end[];
#endif /* CONFIG_CCM_BASE_ADDRESS */
/* Used by the Security Attribution Unit to configure the
* Non-Secure Callable region.
*/
#ifdef CONFIG_ARM_FIRMWARE_HAS_SECURE_ENTRY_FUNCS
extern char __sg_start[];
extern char __sg_end[];
extern char __sg_size[];
#endif /* CONFIG_ARM_FIRMWARE_HAS_SECURE_ENTRY_FUNCS */
#endif /* ! _ASMLANGUAGE */