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

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This commit is contained in:
Markus Fröschle
2012-10-13 21:14:57 +00:00
parent ba38052af4
commit e50cc71df2
7 changed files with 373 additions and 45 deletions
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60
sources/exceptions.S
View File

@@ -4,10 +4,10 @@
#include "startcf.h"
.extern ___Bas_base
.extern ___SUP_SP
.extern ___BOOT_FLASH
.extern ___RAMBAR0
.extern __Bas_base
.extern __SUP_SP
.extern __BOOT_FLASH
.extern __RAMBAR0
.extern _rt_cacr
.extern _rt_mod
.extern _rt_ssp
@@ -16,44 +16,44 @@
.extern _illegal_instruction
.extern _privileg_violation
.extern _mmutr_miss
.extern ___MBAR
.extern ___MMUBAR
.extern __MBAR
.extern __MMUBAR
.extern _video_tlb
.extern _video_sbt
.extern cpusha
/* Register read/write macros */
#define MCF_MMU_MMUCR ___MMUBAR
#define MCF_MMU_MMUOR ___MMUBAR+0x04
#define MCF_MMU_MMUSR ___MMUBAR+0x08
#define MCF_MMU_MMUAR ___MMUBAR+0x10
#define MCF_MMU_MMUTR ___MMUBAR+0x14
#define MCF_MMU_MMUDR ___MMUBAR+0x18
#define MCF_MMU_MMUCR __MMUBAR
#define MCF_MMU_MMUOR __MMUBAR+0x04
#define MCF_MMU_MMUSR __MMUBAR+0x08
#define MCF_MMU_MMUAR __MMUBAR+0x10
#define MCF_MMU_MMUTR __MMUBAR+0x14
#define MCF_MMU_MMUDR __MMUBAR+0x18
#define MCF_EPORT_EPPAR ___MBAR+0xF00
#define MCF_EPORT_EPDDR ___MBAR+0xF04
#define MCF_EPORT_EPIER ___MBAR+0xF05
#define MCF_EPORT_EPDR ___MBAR+0xF08
#define MCF_EPORT_EPPDR ___MBAR+0xF09
#define MCF_EPORT_EPFR ___MBAR+0xF0C
#define MCF_EPORT_EPPAR __MBAR+0xF00
#define MCF_EPORT_EPDDR __MBAR+0xF04
#define MCF_EPORT_EPIER __MBAR+0xF05
#define MCF_EPORT_EPDR __MBAR+0xF08
#define MCF_EPORT_EPPDR __MBAR+0xF09
#define MCF_EPORT_EPFR __MBAR+0xF0C
#define MCF_GPIO_PODR_FEC1L ___MBAR+0xA07
#define MCF_GPIO_PODR_FEC1L __MBAR+0xA07
#define MCF_PSC0_PSCTB_8BIT ___MBAR+0x860C
#define MCF_PSC0_PSCTB_8BIT __MBAR+0x860C
#define MCF_PSC3_PSCRB_8BIT ___MBAR+0x890C
#define MCF_PSC3_PSCTB_8BIT ___MBAR+0x890C
#define MCF_PSC3_PSCRB_8BIT __MBAR+0x890C
#define MCF_PSC3_PSCTB_8BIT __MBAR+0x890C
.global _vec_init
//mmu ---------------------------------------------------
/* Register read/write macros */
#define MCF_MMU_MMUCR ___MMUBAR
#define MCF_MMU_MMUOR ___MMUBAR+0x04
#define MCF_MMU_MMUSR ___MMUBAR+0x08
#define MCF_MMU_MMUAR ___MMUBAR+0x10
#define MCF_MMU_MMUTR ___MMUBAR+0x14
#define MCF_MMU_MMUDR ___MMUBAR+0x18
#define MCF_MMU_MMUCR __MMUBAR
#define MCF_MMU_MMUOR __MMUBAR+0x04
#define MCF_MMU_MMUSR __MMUBAR+0x08
#define MCF_MMU_MMUAR __MMUBAR+0x10
#define MCF_MMU_MMUTR __MMUBAR+0x14
#define MCF_MMU_MMUDR __MMUBAR+0x18
/* Bit definitions and macros for MCF_MMU_MMUCR */
@@ -111,7 +111,7 @@
*********************************************************************/
/* Register read/write macros */
#define MCF_GPT0_GMS ___MBAR+0x800
#define MCF_GPT0_GMS __MBAR+0x800
/*********************************************************************
*
@@ -119,7 +119,7 @@
*
*********************************************************************/
#define MCF_SLT0_SCNT ___MBAR+0x908
#define MCF_SLT0_SCNT __MBAR+0x908
/**********************************************************/
// macros

17
sources/startcf.c
View File

@@ -3,33 +3,34 @@
void _startup(void)
{
asm("\n\t"
".extern _initialize_hardware\n\t"
"bra warmstart\n\t"
"jmp __BOOT_FLASH + 8 | ist zugleich reset vector\n\t"
"jmp ___BOOT_FLASH + 8 | ist zugleich reset vector\n\t"
"| disable interrupts\n\t"
"warmstart:\n\t"
"| disable interrupts\n\t"
"move.w #0x2700,sr\n\t"
"|// Initialize MBAR\n\t"
"MOVE.L #__MBAR,D0\n\t"
"MOVE.L #___MBAR,D0\n\t"
"MOVEC D0,MBAR\n\t"
"MOVE.L D0,rt_mbar\n\t"
"MOVE.L D0,_rt_mbar\n\t"
"| mmu off\n\t"
"move.l #__MMUBAR+1,d0\n\t"
"move.l #___MMUBAR+1,d0\n\t"
"movec d0,MMUBAR | mmubar setzen\n\t"
"clr.l d0\n\t"
"move.l d0,MCF_MMU_MMUCR\n\t | mmu off"
"|/* Initialize RAMBARs: locate SRAM and validate it */\n\t"
"move.l #__RAMBAR0 + 0x7,d0\n\t | supervisor only"
"move.l #___RAMBAR0 + 0x7,d0\n\t | supervisor only"
"movec d0,RAMBAR0\n\t"
"move.l #__RAMBAR1 + 0x1,d0\n\t"""
"move.l #___RAMBAR1 + 0x1,d0\n\t"""
"movec d0,RAMBAR1\n\t"
"| STACKPOINTER AUF ENDE SRAM1\n\t"
"lea __SUP_SP,a7\n\t"
"lea ___SUP_SP,a7\n\t"
"| instruction cache on\n\t"
"move.l #0x000C8100,d0\n\t"
"movec d0,cacr\n\t"
"nop\n\t"
"| initialize any hardware specific issues\n\t"
"bra __initialize_hardware\n\t"
"bra _initialize_hardware\n\t"
);
}

12
sources/supervisor.S
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@@ -11,12 +11,12 @@
.extern ___MMUBAR
/* Register read/write macros */
#define MCF_MMU_MMUCR ___MMUBAR
#define MCF_MMU_MMUOR ___MMUBAR+0x04
#define MCF_MMU_MMUSR ___MMUBAR+0x08
#define MCF_MMU_MMUAR ___MMUBAR+0x10
#define MCF_MMU_MMUTR ___MMUBAR+0x14
#define MCF_MMU_MMUDR ___MMUBAR+0x18
#define MCF_MMU_MMUCR __MMUBAR
#define MCF_MMU_MMUOR __MMUBAR+0x04
#define MCF_MMU_MMUSR __MMUBAR+0x08
#define MCF_MMU_MMUAR __MMUBAR+0x10
#define MCF_MMU_MMUTR __MMUBAR+0x14
#define MCF_MMU_MMUDR __MMUBAR+0x18
.global _privileg_violation
.global cpusha

2
sources/sysinit.c
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@@ -14,7 +14,7 @@
static const uint8_t *FPGA_FLASH_DATA = (uint8_t *) 0xe0700000L;
static const uint8_t *FPGA_FLASH_DATA_END = (uint8_t *) 0xe0800000L;
extern unsigned long _VRAM;
extern unsigned long __VRAM;
extern unsigned long _Bas_base;
extern unsigned long BaS;
extern unsigned long _BOOT_FLASH[];