#! armclang -E --target=arm-arm-none-eabi -mcpu=cortex-m33 -xc
; wolfBoot stm32u5 (TZEN=1) scatter file for armlink, equivalent to
; hal/stm32u5.ld. The @VAR@ placeholders are substituted by the Makefile
; (same rule as the GNU linker scripts), then armlink runs the armclang
; preprocessor on the result (#! line above).
;
; Region symbols consumed by the code (mapped from the GNU-ld symbol names
; via -D in arch.mk / Makefile):
;   ER_VECTORS      -> _start_text
;   RW_RAM          -> _stored_data (load), _start_data/_end_data,
;                      _start_bss/_end_bss
;   ARM_LIB_STACK   -> END_STACK (stack top, grows down from end of RAM)
;   RAM_HEAP        -> _start_heap/_heap_size (WOLFCRYPT_TZ PKCS11 heap)
;   KEYVAULT        -> _flash_keyvault/_flash_keyvault_size

#define WOLFBOOT_STACK_RESERVE 0x1000

LR_FLASH @WOLFBOOT_ORIGIN@ (@WOLFBOOT_KEYVAULT_ADDRESS@ - @WOLFBOOT_ORIGIN@)
{
    ER_VECTORS @WOLFBOOT_ORIGIN@
    {
        *(.isr_vector, +FIRST)
    }

    ER_TEXT +0 ALIGN 8
    {
        .ANY(+RO)
    }

    RW_RAM 0x30000000 ALIGN 8 (0x00012000 - WOLFBOOT_STACK_RESERVE)
    {
        *(.ramcode)
        .ANY(+RW)
        .ANY(+ZI)
    }

    ; Empty region only used to define the initial stack pointer; also lets
    ; armlink error out if RW_RAM grows into the stack reserve
    ARM_LIB_STACK 0x30012000 EMPTY -WOLFBOOT_STACK_RESERVE
    {
    }

#if @WOLFBOOT_KEYVAULT_SIZE@ + 0
    ; 56KB heap for wolfcrypt/PKCS11
    RAM_HEAP 0x30012000 EMPTY 0xe000
    {
    }

    KEYVAULT @WOLFBOOT_KEYVAULT_ADDRESS@ EMPTY @WOLFBOOT_KEYVAULT_SIZE@
    {
    }
#endif
}

; CMSE secure gateway veneers, generated by armlink. Placed at NSC + 0x400
; like the GNU script (hal/stm32u5.ld reserves the first 0x400 bytes of the
; NSC region).
LR_NSC (@WOLFBOOT_NSC_ADDRESS@ + 0x400) (@WOLFBOOT_NSC_SIZE@ - 0x400)
{
    ER_NSC (@WOLFBOOT_NSC_ADDRESS@ + 0x400)
    {
        *(Veneer$$CMSE)
    }
}