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Update K64F linker files for general solution of 2-ram regions

pull/9571/head
Deepika 2019-02-11 16:26:40 -06:00 committed by deepikabhavnani
parent f13a3e32b6
commit e7e9e0734c
2 changed files with 5 additions and 94 deletions
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86
targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/TARGET_MCU_K64F/device/TOOLCHAIN_ARM_STD/sys.cpp
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@ -1,86 +0,0 @@
/*
* Copyright (c) 2019-2019 ARM Limited. All rights reserved.
* SPDX-License-Identifier: Apache-2.0
* Licensed under the Apache License, Version 2.0 (the License); you may
* not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Setup a fixed single stack/heap memory model,
* between the top of the RW/ZI region and the stackpointer
*/
#ifdef __cplusplus
extern "C" {
#endif
#if defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
#include <arm_compat.h>
#endif
#include <rt_misc.h>
#include <stdint.h>
extern char Image$$ARM_LIB_STACK$$ZI$$Limit[];
extern char Image$$ARM_LIB_HEAP$$Base[];
extern char Image$$ARM_LIB_HEAP$$ZI$$Limit[];
extern __value_in_regs struct __initial_stackheap _mbed_user_setup_stackheap(uint32_t R0, uint32_t R1, uint32_t R2, uint32_t R3) {
struct __initial_stackheap r;
r.heap_base = (uint32_t)Image$$ARM_LIB_HEAP$$Base;
r.heap_limit = (uint32_t)Image$$ARM_LIB_HEAP$$ZI$$Limit;
return r;
}
#if !defined(MBED_CONF_RTOS_PRESENT) || !MBED_CONF_RTOS_PRESENT
/* The single region memory model would check stack collision at run time, verifying that
* the heap pointer is underneath the stack pointer. With two-region memory model/RTOS-less or
* multiple threads(stacks)/RTOS, the check gets meaningless and we must disable it. */
#if defined (__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050)
__asm(".global __use_two_region_memory\n\t");
__asm(".global __use_no_semihosting\n\t");
#else
#pragma import(__use_two_region_memory)
#endif
/* Fix __user_setup_stackheap and ARM_LIB_STACK/ARM_LIB_HEAP cannot co-exist in RTOS-less build
*
* According AN241 (http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dai0241b/index.html),
* __rt_entry has the following call sequence:
* 1. _platform_pre_stackheap_init
* 2. __user_setup_stackheap or setup the Stack Pointer (SP) by another method
* 3. _platform_post_stackheap_init
* 4. __rt_lib_init
* 5. _platform_post_lib_init
* 6. main()
* 7. exit()
*
* Per our check, when __user_setup_stackheap and ARM_LIB_STACK/ARM_LIB_HEAP co-exist, neither
* does __user_setup_stackheap get called and nor is ARM_LIB_HEAP used to get heap base/limit,
* which are required to pass to __rt_lib_init later. To fix the issue, by subclass'ing
* __rt_lib_init, heap base/limit are replaced with Image$$ARM_LIB_HEAP$$ZI$$Base/Limit if
* ARM_LIB_HEAP region is defined in scatter file.
*
* The overriding __rt_lib_init is needed only for rtos-less code. For rtos code, __rt_entry is
* overridden and the overriding __rt_lib_init here gets meaningless.
*/
extern __value_in_regs struct __argc_argv $Super$$__rt_lib_init(unsigned heapbase, unsigned heaptop);
__value_in_regs struct __argc_argv $Sub$$__rt_lib_init (unsigned heapbase, unsigned heaptop)
{
return $Super$$__rt_lib_init((unsigned) Image$$ARM_LIB_HEAP$$Base, (unsigned) Image$$ARM_LIB_HEAP$$ZI$$Limit);
}
#endif
#ifdef __cplusplus
}
#endif

13
targets/TARGET_Freescale/mbed_rtx.h
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@ -89,16 +89,13 @@
#ifndef INITIAL_SP
#define INITIAL_SP (0x20030000UL)
#if defined(__CC_ARM) || (defined(__ARMCC_VERSION) && (__ARMCC_VERSION >= 6010050))
#endif
#if defined(__ARMCC_VERSION)
extern uint32_t Image$$ARM_LIB_HEAP$$ZI$$Base[];
extern uint32_t Image$$ARM_LIB_HEAP$$ZI$$Length[];
extern uint32_t Image$$ARM_LIB_STACK$$ZI$$Base[];
extern uint32_t Image$$ARM_LIB_STACK$$ZI$$Length[];
#define HEAP_START ((unsigned char*) Image$$ARM_LIB_HEAP$$ZI$$Base)
#define HEAP_SIZE ((uint32_t) Image$$ARM_LIB_HEAP$$ZI$$Length)
#define ISR_STACK_START ((unsigned char*)Image$$ARM_LIB_STACK$$ZI$$Base)
#define ISR_STACK_SIZE ((uint32_t)Image$$ARM_LIB_STACK$$ZI$$Length)
#endif
#define HEAP_START Image$$ARM_LIB_HEAP$$ZI$$Base
#define HEAP_SIZE Image$$ARM_LIB_HEAP$$ZI$$Length
#endif
#elif defined(TARGET_SDT64B)