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看了一下IAR下面帮助linker分配地址的icf文件,感觉有点不懂
怎么弄得跟文章是的,都分不出哪个是语法关键字了。摘抄了一个请大家帮着指点一下:
//*****************************************************************************
//
// hello.icf - Linker configuration file for hello.
//
// Copyright (c) 2006-2009 Luminary Micro, Inc. All rights reserved.
// Software License Agreement
//
// Luminary Micro, Inc. (LMI) is supplying this software for use solely and
// exclusively on LMI's microcontroller products.
//
// The software is owned by LMI and/or its suppliers, and is protected under
// applicable copyright laws. All rights are reserved. You may not combine
// this software with "viral" open-source software in order to form a larger
// program. Any use in violation of the foregoing restrictions may subject
// the user to criminal sanctions under applicable laws, as well as to civil
// liability for the breach of the terms and conditions of this license.
//
// THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED
// OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE.
// LMI SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR
// CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER.
//
// This is part of revision 4053 of the EK-LM3S8962 Firmware Package.
//
//*****************************************************************************
//
// Define a memory region that covers the entire 4 GB addressible space of the
// processor.
//
define memory mem with size = 4G;
//
// Define a region for the on-chip flash.
//
define region FLASH = mem:[from 0x00000000 to 0x0003ffff];
//
// Define a region for the on-chip SRAM.
//
define region SRAM = mem:[from 0x20000000 to 0x2000ffff];
//
// Define a block for the heap. The size should be set to something other
// than zero if things in the C library that require the heap are used.
//
define block HEAP with alignment = 8, size = 0x00000000 { };
//
// Indicate that the read/write values should be initialized by copying from
// flash.
//
initialize by copy { readwrite };
//
// Indicate that the noinit values should be left alone. This includes the
// stack, which if initialized will destroy the return address from the
// initialization code, causing the processor to branch to zero and fault.
//
do not initialize { section .noinit };
//
// Place the interrupt vectors at the start of flash.
//
place at start of FLASH { readonly section .intvec };
//
// Place the remainder of the read-only items into flash.
//
place in FLASH { readonly };
//
// Place the RAM vector table at the start of SRAM.
//
//place at start of SRAM { section VTABLE };
//
// Place all read/write items into SRAM.
//
place in SRAM { readwrite, block HEAP };
有几个问题:
1) 这里面哪些是语法关键字。 section .intvec对照着startup看了一下好像是存放MSP和中断向量的flash 空间,section VTABLE有对应着什么呢?,有关于.icf定义的文章介绍么? 这些特殊段(section)的定义(比如intvec,VTABLE 等等是不是需要看IAR的编译器手册)。
2)heap 是什么东西,没见过。
define block HEAP with alignment = 8, size = 0x00000000 { };又想表达什么意思呢?
感谢各位
aaa1982 |
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