Fawwaz Nadzmy / mbed-STM

mbed library sources. Supersedes mbed-src.

Fork of mbed-dev by mbed official

targets/TARGET_NXP/TARGET_LPC15XX/device/TOOLCHAIN_ARM_MICRO/sys.cpp@153:9398a535854b, 2016-12-22 (annotated)

Committer:
fwndz
Date:
Thu Dec 22 05:12:40 2016 +0000
Revision:
153:9398a535854b
Parent:
149:156823d33999 
device target maximize

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 144:ef7eb2e8f9f7 1 /* mbed Microcontroller Library - stackheap
<> 144:ef7eb2e8f9f7 2 * Copyright (C) 2009-2011 ARM Limited. All rights reserved.
<> 144:ef7eb2e8f9f7 3 *
<> 144:ef7eb2e8f9f7 4 * Setup a fixed single stack/heap memory model,
<> 144:ef7eb2e8f9f7 5 * between the top of the RW/ZI region and the stackpointer
<> 144:ef7eb2e8f9f7 6 */
<> 144:ef7eb2e8f9f7 7
<> 144:ef7eb2e8f9f7 8 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 9 extern "C" {
<> 144:ef7eb2e8f9f7 10 #endif
<> 144:ef7eb2e8f9f7 11
<> 144:ef7eb2e8f9f7 12 #include <rt_misc.h>
<> 144:ef7eb2e8f9f7 13 #include <stdint.h>
<> 144:ef7eb2e8f9f7 14
<> 144:ef7eb2e8f9f7 15 extern char Image$$RW_IRAM1$$ZI$$Limit[];
<> 144:ef7eb2e8f9f7 16
<> 144:ef7eb2e8f9f7 17 extern __value_in_regs struct __initial_stackheap __user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
<> 144:ef7eb2e8f9f7 18 uint32_t zi_limit = (uint32_t)Image$$RW_IRAM1$$ZI$$Limit;
<> 144:ef7eb2e8f9f7 19 uint32_t sp_limit = __current_sp();
<> 144:ef7eb2e8f9f7 20
<> 144:ef7eb2e8f9f7 21 zi_limit = (zi_limit + 7) & ~0x7; // ensure zi_limit is 8-byte aligned
<> 144:ef7eb2e8f9f7 22
<> 144:ef7eb2e8f9f7 23 struct __initial_stackheap r;
<> 144:ef7eb2e8f9f7 24 r.heap_base = zi_limit;
<> 144:ef7eb2e8f9f7 25 r.heap_limit = sp_limit;
<> 144:ef7eb2e8f9f7 26 return r;
<> 144:ef7eb2e8f9f7 27 }
<> 144:ef7eb2e8f9f7 28
<> 144:ef7eb2e8f9f7 29 #ifdef __cplusplus
<> 144:ef7eb2e8f9f7 30 }
<> 144:ef7eb2e8f9f7 31 #endif