mirror of https://github.com/ARMmbed/mbed-os.git
Add initial KL25Z startup code and linker script for Code Warrior
Emilio Monti
parent
498d5efcc4
commit
3f684a518f
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@ -16,7 +16,13 @@
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#include "semihost_api.h"
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#include "mbed_interface.h"
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#ifdef TOOLCHAIN_GCC_CW
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// TODO: Ideally, we would like to define directly "_ExitProcess"
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void mbed_exit(int return_code) {
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#else
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void exit(int return_code) {
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#endif
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#if DEVICE_SEMIHOST
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if (mbed_interface_connected()) {
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semihost_exit();
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@ -0,0 +1,197 @@
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/*
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*****************************************************************************
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**
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** File : KL25Z128M4_flash.ld
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**
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** Default linker command file for Flash targets
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**
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*****************************************************************************
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*/
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/* Entry Point */
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ENTRY(__thumb_startup)
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/* Highest address of the user mode stack */
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_estack = 0x20003000; /* end of SRAM */
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__SP_INIT = _estack;
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/* Generate a link error if heap and stack don't fit into RAM */
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__heap_size = 0x400; /* required amount of heap */
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__stack_size = 0x400; /* required amount of stack */
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/* Specify the memory areas */
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MEMORY
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{
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m_interrupts (rx) : ORIGIN = 0x00000000, LENGTH = 0xC0
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m_cfmprotrom (rx) : ORIGIN = 0x00000400, LENGTH = 0x10
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m_text (rx) : ORIGIN = 0x00000800, LENGTH = 128K - 0x800
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m_data (rwx) : ORIGIN = 0x1FFFF000, LENGTH = 16K /* SRAM */
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}
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/* Define output sections */
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SECTIONS
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{
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/* The startup code goes first into Flash */
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.interrupts :
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{
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__vector_table = .;
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. = ALIGN(4);
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KEEP(*(.vectortable)) /* Startup code */
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. = ALIGN(4);
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} > m_interrupts
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.cfmprotect :
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{
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. = ALIGN(4);
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KEEP(*(.cfmconfig)) /* Flash Configuration Field (FCF) */
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. = ALIGN(4);
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} > m_cfmprotrom
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/* The program code and other data goes into Flash */
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.text :
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{
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. = ALIGN(4);
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*(.text) /* .text sections (code) */
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*(.text*) /* .text* sections (code) */
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*(.rodata) /* .rodata sections (constants, strings, etc.) */
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*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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*(.glue_7) /* glue arm to thumb code */
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*(.glue_7t) /* glue thumb to arm code */
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*(.eh_frame)
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KEEP (*(.init))
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KEEP (*(.fini))
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. = ALIGN(4);
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_etext = .; /* define a global symbols at end of code */
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} > m_text
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.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } > m_text
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.ARM : {
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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} > m_text
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.ctors :
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{
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__CTOR_LIST__ = .;
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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/* We don't want to include the .ctor section from
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from the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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__CTOR_END__ = .;
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} > m_text
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.dtors :
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{
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__DTOR_LIST__ = .;
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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__DTOR_END__ = .;
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} > m_text
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.preinit_array :
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{
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array*))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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} > m_text
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.init_array :
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{
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array*))
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PROVIDE_HIDDEN (__init_array_end = .);
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} > m_text
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.fini_array :
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{
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(SORT(.fini_array.*)))
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KEEP (*(.fini_array*))
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PROVIDE_HIDDEN (__fini_array_end = .);
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___ROM_AT = .;
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} > m_text
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/* reserve MTB memory at the beginning of m_data */
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.mtb : /* MTB buffer address as defined by the hardware */
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{
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. = ALIGN(8);
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_mtb_start = .;
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KEEP(*(.mtb_buf)) /* need to KEEP Micro Trace Buffer as not referenced by application */
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. = ALIGN(8);
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_mtb_end = .;
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} > m_data
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/* Initialized data sections goes into RAM, load LMA copy after code */
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.data : AT(___ROM_AT)
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{
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. = ALIGN(4);
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__sinit__ = .;
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_sdata = .; /* create a global symbol at data start */
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*(.data) /* .data sections */
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*(.data*) /* .data* sections */
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. = ALIGN(4);
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_edata = .; /* define a global symbol at data end */
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} > m_data
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___data_size = _edata - _sdata;
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/* Uninitialized data section */
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. = ALIGN(4);
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.bss :
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{
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/* This is used by the startup in order to initialize the .bss section */
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__START_BSS = .;
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PROVIDE ( __bss_start__ = __START_BSS );
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*(.bss)
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*(.bss*)
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*(COMMON)
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. = ALIGN(4);
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__END_BSS = .;
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PROVIDE ( __bss_end__ = __END_BSS );
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} > m_data
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_romp_at = ___ROM_AT + SIZEOF(.data);
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.romp : AT(_romp_at)
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{
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__S_romp = _romp_at;
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LONG(___ROM_AT);
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LONG(_sdata);
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LONG(___data_size);
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LONG(0);
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LONG(0);
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LONG(0);
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} > m_data
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/* User_heap_stack section, used to check that there is enough RAM left */
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._user_heap_stack :
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{
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. = ALIGN(4);
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PROVIDE ( end = . );
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PROVIDE ( _end = . );
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__heap_addr = .;
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. = . + __heap_size;
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. = . + __stack_size;
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. = ALIGN(4);
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} > m_data
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.ARM.attributes 0 : { *(.ARM.attributes) }
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}
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@ -0,0 +1,147 @@
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#include <string.h>
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#include <stdlib.h>
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#include "cmsis.h"
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// Linker Script
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extern unsigned long _estack;
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extern char __S_romp[];
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extern char __START_BSS[];
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extern char __END_BSS[];
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// CRT0
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extern void __init_registers();
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extern void __copy_rom_sections_to_ram(void);
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extern void __call_static_initializers(void);
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extern void __init_user();
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// User/mbed Defined
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extern int main();
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extern void mbed_exit(int return_code);
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void _ExitProcess(int return_code) {
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mbed_exit(return_code);
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}
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void __thumb_startup(void) {
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// Setup registers
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__init_registers();
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// Disable the Watchdog because it may reset the core before entering main().
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SIM->COPC = 0x0;
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// zero-fill the .bss section
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memset(__START_BSS, 0, (__END_BSS - __START_BSS));
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if (__S_romp != 0L)
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__copy_rom_sections_to_ram();
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// call C++ static initializers
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__call_static_initializers();
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// initializations before main, user specific
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__init_user();
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exit(main());
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// should never get here
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while (1);
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}
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void Default_Handler() {
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__asm("bkpt");
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}
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/* Weak definitions of handlers point to Default_Handler if not implemented */
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void NMI_Handler() __attribute__ ((weak, alias("Default_Handler")));
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void HardFault_Handler() __attribute__ ((weak, alias("Default_Handler")));
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void SVC_Handler() __attribute__ ((weak, alias("Default_Handler")));
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void PendSV_Handler() __attribute__ ((weak, alias("Default_Handler")));
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void SysTick_Handler() __attribute__ ((weak, alias("Default_Handler")));
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void DMA0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void DMA1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void DMA2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void DMA3_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void MCM_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void FTFL_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void PMC_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void LLW_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void I2C0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void I2C1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void SPI0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void SPI1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void UART0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void UART1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void UART2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void ADC0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void CMP0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void FTM0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void FTM1_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void FTM2_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void RTC_Alarm_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void RTC_Seconds_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void PIT_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void USBOTG_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void DAC0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void TSI0_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void MCG_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void LPTimer_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void PORTA_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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void PORTD_IRQHandler() __attribute__ ((weak, alias("Default_Handler")));
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/* The Interrupt Vector Table */
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void (* const InterruptVector[])() __attribute__ ((section(".vectortable"))) = {
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/* Processor exceptions */
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(void(*)(void)) &_estack,
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__thumb_startup,
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NMI_Handler,
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HardFault_Handler,
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0,
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0,
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0,
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0,
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0,
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0,
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0,
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SVC_Handler,
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0,
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0,
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PendSV_Handler,
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SysTick_Handler,
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/* Interrupts */
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DMA0_IRQHandler, /* DMA Channel 0 Transfer Complete and Error */
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DMA1_IRQHandler, /* DMA Channel 1 Transfer Complete and Error */
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DMA2_IRQHandler, /* DMA Channel 2 Transfer Complete and Error */
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DMA3_IRQHandler, /* DMA Channel 3 Transfer Complete and Error */
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MCM_IRQHandler, /* Normal Interrupt */
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FTFL_IRQHandler, /* FTFL Interrupt */
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PMC_IRQHandler, /* PMC Interrupt */
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LLW_IRQHandler, /* Low Leakage Wake-up */
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I2C0_IRQHandler, /* I2C0 interrupt */
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I2C1_IRQHandler, /* I2C1 interrupt */
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SPI0_IRQHandler, /* SPI0 Interrupt */
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SPI1_IRQHandler, /* SPI1 Interrupt */
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UART0_IRQHandler, /* UART0 Status and Error interrupt */
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UART1_IRQHandler, /* UART1 Status and Error interrupt */
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UART2_IRQHandler, /* UART2 Status and Error interrupt */
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ADC0_IRQHandler, /* ADC0 interrupt */
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CMP0_IRQHandler, /* CMP0 interrupt */
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FTM0_IRQHandler, /* FTM0 fault, overflow and channels interrupt */
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FTM1_IRQHandler, /* FTM1 fault, overflow and channels interrupt */
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FTM2_IRQHandler, /* FTM2 fault, overflow and channels interrupt */
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RTC_Alarm_IRQHandler, /* RTC Alarm interrupt */
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RTC_Seconds_IRQHandler, /* RTC Seconds interrupt */
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PIT_IRQHandler, /* PIT timer all channels interrupt */
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Default_Handler, /* Reserved interrupt 39/23 */
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USBOTG_IRQHandler, /* USB interrupt */
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DAC0_IRQHandler, /* DAC0 interrupt */
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TSI0_IRQHandler, /* TSI0 Interrupt */
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MCG_IRQHandler, /* MCG Interrupt */
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LPTimer_IRQHandler, /* LPTimer interrupt */
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Default_Handler, /* Reserved interrupt 45/29 */
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PORTA_IRQHandler, /* Port A interrupt */
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PORTD_IRQHandler /* Port D interrupt */
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};
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