started link script rewrite - needed lots of symbol changes because leading underscores in symbol names

2012-10-13 21:14:57 +00:00
parent ba38052af4
commit e50cc71df2
7 changed files with 373 additions and 45 deletions
--- a/flash.lk
+++ b/flash.lk
@@ -0,0 +1,86 @@
+MEMORY {
+   code (RX)  : ORIGIN = 0xE0000000, LENGTH = 0x00200000
+}
+
+SECTIONS {
+	__Bas_base		  = 0x1FE00000;
+
+	/* Board Memory map definitions from linker command files:
+	 * __SDRAM,__SDRAM_SIZE, __CODE_FLASH, __CODE_FLASH_SIZE
+	 * linker symbols must be defined in the linker command file.
+	 */
+
+	/* Init CS0 (BootFLASH @ E000_0000 - E07F_FFFF 8Mbytes) */
+	___BOOT_FLASH           = ABSOLUTE(0xE0000000);
+ 	___BOOT_FLASH_SIZE      = ABSOLUTE(0x00800000);
+	/* SDRAM Initialization @ 0000_0000 - 1FFF_FFFF 512Mbytes */
+ 	___SDRAM                = ABSOLUTE(0x00000000);
+ 	___SDRAM_SIZE           = ABSOLUTE(0x20000000);
+
+	/* VIDEO RAM BASIS */
+	___VRAM                = ABSOLUTE(0x60000000);
+
+	/*
+	 * MCF5475 Derivative Memory map definitions from linker command files:
+	 * __MBAR, __MMUBAR, __RAMBAR0, __RAMBAR0_SIZE, __RAMBAR1, __RAMBAR1_SIZE
+	 * linker symbols must be defined in the linker command file.
+	 */
+
+	/* Memory mapped registers */
+ 	___MBAR                 = ABSOLUTE(0xFF000000);
+ 	___MMUBAR               = ABSOLUTE(0xFF040000);
+
+	/*
+	 * 4KB on-chip Core SRAM0: -> exception table and exception stack
+	 */
+ 	___RAMBAR0              = ABSOLUTE(0xFF100000);
+ 	___RAMBAR0_SIZE         = ABSOLUTE(0x00001000);
+
+ 	___SUP_SP = ___RAMBAR0 + ___RAMBAR0_SIZE - 4;
+
+	/* 4KB on-chip Core SRAM1: -> modified code */
+ 	___RAMBAR1              = ABSOLUTE(0xFF101000);
+ 	___RAMBAR1_SIZE         = ABSOLUTE(0x00001000);
+
+	/* Systemveriablem:****************************************** */
+	/* RAMBAR0 0 bis 0x7FF -> exception vectoren */
+	_rt_mod    = ___RAMBAR0 + 0x800;
+	_rt_ssp    = ___RAMBAR0 + 0x804;
+	_rt_usp    = ___RAMBAR0 + 0x808;
+	_rt_vbr    = ___RAMBAR0 + 0x80C;  	/* (8)01 */
+	_rt_cacr   = ___RAMBAR0 + 0x810;   	/* 002 */
+	_rt_asid   = ___RAMBAR0 + 0x814;   	/* 003 */
+	_rt_acr0   = ___RAMBAR0 + 0x818;   	/* 004 */
+	_rt_acr1   = ___RAMBAR0 + 0x81c;   	/* 005 */
+	_rt_acr2   = ___RAMBAR0 + 0x820;   	/* 006 */
+	_rt_acr3   = ___RAMBAR0 + 0x824;   	/* 007 */
+	_rt_mmubar = ___RAMBAR0 + 0x828;		/* 008 */
+	_rt_sr     = ___RAMBAR0 + 0x82c;
+	_d0_save   = ___RAMBAR0 + 0x830;
+	_a7_save   = ___RAMBAR0 + 0x834;
+	_video_tlb = ___RAMBAR0 + 0x838;
+	_video_sbt = ___RAMBAR0 + 0x83C;
+	_rt_mbar   = ___RAMBAR0 + 0x844;   	/* (c)0f */
+
+/**********************************************************/
+
+/* 32KB on-chip System SRAM */
+ 	__SYS_SRAM             = 0xFF010000;
+	__SYS_SRAM_SIZE        = 0x00008000;
+
+	.code	    : {} > code
+
+	.text :
+	{
+		objs/startcf.o(.text)
+		objs/sysinit.o(.text)
+		objs/BaS.o(.text)
+		objs/sd_card.o(.text)
+		objs/mmu.o(.text)
+		objs/exceptions.o(.text)
+		objs/supervisor.o(.text)
+		objs/ewf.o(.text)
+		objs/illegal_instruction.o(.text)
+		objs/last.o(.text)
+	} > code
+}