Stack Sealing Support Functions

Stack sealing macros and helper functions. More...

Macros
#define	__STACK_SEAL
	Compiler/linker symbol specifying the location of the stack seal. More...

Functions
void	__TZ_set_STACKSEAL_S (uint32_t *stackTop)
	Set stack seal at given address (secure) More...

Description

Stack sealing macros and helper functions.

See Stack Sealing for details on stack sealing technique.

Macro Definition Documentation

#define __STACK_SEAL

Compiler/linker symbol specifying the location of the stack seal.

The address of the specified symbol is used to set the stack seal during low level init. This is compiler/linker specific. CMSIS specifies common default for supported compilers.

Note

This define is only intended to be used by the Startup File startup_<device>.c.

Function Documentation

void __TZ_set_STACKSEAL_S

(

uint32_t *

stackTop

)

Set stack seal at given address (secure)

Writes the stack seal values (2 x 0xFEF5EDA5U) to the given address when in secure state.

Parameters

[in]

stackTop

address to write stackseal