mbed library sources modified for open wear
Dependents: openwear-lifelogger-example
Fork of mbed-src by
targets/cmsis/TARGET_NXP/TARGET_LPC408X/TOOLCHAIN_ARM_STD/sys.cpp@310:6188e0254baa, 2014-09-16 (annotated)
- Committer:
- janekm
- Date:
- Tue Sep 16 22:42:01 2014 +0000
- Revision:
- 310:6188e0254baa
- Parent:
- 71:ca88dd32f209
N/A
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
bogdanm | 15:4892fe388435 | 1 | /* mbed Microcontroller Library - stackheap |
bogdanm | 15:4892fe388435 | 2 | * Copyright (C) 2009-2011 ARM Limited. All rights reserved. |
bogdanm | 15:4892fe388435 | 3 | * |
bogdanm | 15:4892fe388435 | 4 | * Setup a fixed single stack/heap memory model, |
bogdanm | 15:4892fe388435 | 5 | * between the top of the RW/ZI region and the stackpointer |
bogdanm | 15:4892fe388435 | 6 | */ |
bogdanm | 15:4892fe388435 | 7 | |
bogdanm | 15:4892fe388435 | 8 | #ifdef __cplusplus |
bogdanm | 15:4892fe388435 | 9 | extern "C" { |
bogdanm | 15:4892fe388435 | 10 | #endif |
bogdanm | 15:4892fe388435 | 11 | |
bogdanm | 15:4892fe388435 | 12 | #include <rt_misc.h> |
bogdanm | 15:4892fe388435 | 13 | #include <stdint.h> |
mbed_official | 71:ca88dd32f209 | 14 | #include "sys_helper.h" |
bogdanm | 15:4892fe388435 | 15 | |
bogdanm | 15:4892fe388435 | 16 | extern char Image$$RW_IRAM1$$ZI$$Limit[]; |
bogdanm | 15:4892fe388435 | 17 | |
bogdanm | 15:4892fe388435 | 18 | extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) { |
bogdanm | 15:4892fe388435 | 19 | uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit; |
bogdanm | 15:4892fe388435 | 20 | uint32_t sp_limit = __current_sp(); |
bogdanm | 15:4892fe388435 | 21 | |
bogdanm | 15:4892fe388435 | 22 | zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned |
bogdanm | 15:4892fe388435 | 23 | |
bogdanm | 15:4892fe388435 | 24 | struct __initial_stackheap r; |
bogdanm | 15:4892fe388435 | 25 | r.heap_base = zi_limit; |
mbed_official | 71:ca88dd32f209 | 26 | r.heap_limit = sp_limit - __reserved_stack_size(); |
bogdanm | 15:4892fe388435 | 27 | return r; |
bogdanm | 15:4892fe388435 | 28 | } |
bogdanm | 15:4892fe388435 | 29 | |
bogdanm | 15:4892fe388435 | 30 | #ifdef __cplusplus |
bogdanm | 15:4892fe388435 | 31 | } |
bogdanm | 15:4892fe388435 | 32 | #endif |