mbed library sources

Fork of mbed-src by mbed official

Committer:
SteveKim
Date:
Tue Jul 14 10:20:51 2015 +0000
Revision:
590:0835b0fc9a03
Parent:
30:91c1d09ada54
.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 30:91c1d09ada54 1 /* mbed Microcontroller Library - stackheap
mbed_official 30:91c1d09ada54 2 * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
mbed_official 30:91c1d09ada54 3 *
mbed_official 30:91c1d09ada54 4 * Setup a fixed single stack/heap memory model,
mbed_official 30:91c1d09ada54 5 * between the top of the RW/ZI region and the stackpointer
mbed_official 30:91c1d09ada54 6 */
mbed_official 30:91c1d09ada54 7
mbed_official 30:91c1d09ada54 8 #ifdef __cplusplus
mbed_official 30:91c1d09ada54 9 extern "C" {
mbed_official 30:91c1d09ada54 10 #endif
mbed_official 30:91c1d09ada54 11
mbed_official 30:91c1d09ada54 12 #include <rt_misc.h>
mbed_official 30:91c1d09ada54 13 #include <stdint.h>
mbed_official 30:91c1d09ada54 14
mbed_official 30:91c1d09ada54 15 extern char Image$$RW_IRAM1$$ZI$$Limit[];
mbed_official 30:91c1d09ada54 16
mbed_official 30:91c1d09ada54 17 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
mbed_official 30:91c1d09ada54 18 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
mbed_official 30:91c1d09ada54 19 uint32_t sp_limit = __current_sp();
mbed_official 30:91c1d09ada54 20
mbed_official 30:91c1d09ada54 21 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
mbed_official 30:91c1d09ada54 22
mbed_official 30:91c1d09ada54 23 struct __initial_stackheap r;
mbed_official 30:91c1d09ada54 24 r.heap_base = zi_limit;
mbed_official 30:91c1d09ada54 25 r.heap_limit = sp_limit;
mbed_official 30:91c1d09ada54 26 return r;
mbed_official 30:91c1d09ada54 27 }
mbed_official 30:91c1d09ada54 28
mbed_official 30:91c1d09ada54 29 #ifdef __cplusplus
mbed_official 30:91c1d09ada54 30 }
mbed_official 30:91c1d09ada54 31 #endif