2010-12-03 Sebastian Huber <sebastian.huber@embedded-brains.de>

* start/start.S, startup/linkcmds: Use linker command base file.

c/src/lib/libbsp/arm/gp32/ChangeLog

@@ -1,3 +1,7 @@
+2010-12-03	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	* start/start.S, startup/linkcmds: Use linker command base file.
+
 2010-04-30	Sebastian Huber <sebastian.huber@embedded-brains.de>
 
 	* Makefile.am, preinstall.am: Added generic interrupt support modules.

c/src/lib/libbsp/arm/gp32/start/start.S

@@ -11,6 +11,8 @@
  *  $Id$
  */
 
+#include <bsp/linker-symbols.h>
+
 /* Some standard definitions...*/
 .equ PSR_MODE_USR,       0x10
 .equ PSR_MODE_FIQ,       0x11
@@ -32,12 +34,12 @@ _start:
 @---------------------------------------------------------------------------------
 @ AXF addresses
 @---------------------------------------------------------------------------------
-	.word   _axf_text_start
+	.word   bsp_section_text_begin
-	.word   _axf_ro_end
+	.word   bsp_section_rodata_end
-	.word   _axf_data_start
+	.word   bsp_section_data_begin
-	.word   _axf_bss_end
+	.word   bsp_section_bss_end
-	.word   _axf_bss_start
+	.word   bsp_section_bss_begin
-	.word   _axf_bss_end
+	.word   bsp_section_bss_end
 
 @---------------------------------------------------------------------------------
 @ GamePark magic sequence
@@ -77,29 +79,29 @@ _start2:
         /* Enter IRQ mode and set up the IRQ stack pointer */
         mov     r0, #(PSR_MODE_IRQ | PSR_I | PSR_F)     /* No interrupts */
         msr     cpsr, r0
-        ldr     r1, =_irq_stack_size
+        ldr     r1, =bsp_stack_irq_size
-        ldr     sp, =_irq_stack
+        ldr     sp, =bsp_stack_irq_begin
         add     sp, sp, r1
 
         /* Enter FIQ mode and set up the FIQ stack pointer */
         mov     r0, #(PSR_MODE_FIQ | PSR_I | PSR_F)     /* No interrupts */
         msr     cpsr, r0
-        ldr     r1, =_fiq_stack_size
+        ldr     r1, =bsp_stack_fiq_size
-        ldr     sp, =_fiq_stack
+        ldr     sp, =bsp_stack_fiq_begin
         add     sp, sp, r1
 
         /* Enter ABT mode and set up the ABT stack pointer */
         mov     r0, #(PSR_MODE_ABT | PSR_I | PSR_F)     /* No interrupts */
         msr     cpsr, r0
-        ldr     r1, =_abt_stack_size
+        ldr     r1, =bsp_stack_abt_size
-        ldr     sp, =_abt_stack
+        ldr     sp, =bsp_stack_abt_begin
         add     sp, sp, r1
 
         /* Set up the SVC stack pointer last and stay in SVC mode */
         mov     r0, #(PSR_MODE_SVC | PSR_I | PSR_F)     /* No interrupts */
         msr     cpsr, r0
-        ldr     r1, =_svc_stack_size
+        ldr     r1, =bsp_stack_svc_size
-        ldr     sp, =_svc_stack
+        ldr     sp, =bsp_stack_svc_begin
         add     sp, sp, r1
         sub     sp, sp, #0x64
 

c/src/lib/libbsp/arm/gp32/startup/linkcmds

@@ -1,279 +1,25 @@
-/*
- *  GP32 Linker script
- *
- *  Written by Philippe Simons <loki_666@fastmail.fm>
- *
- *  The license and distribution terms for this file may be
- *  found in the file LICENSE in this distribution or at
- *
- *  http://www.rtems.com/license/LICENSE.
- *
- *  $Id$
- */
-OUTPUT_FORMAT("elf32-littlearm", "elf32-bigarm","elf32-littlearm")
-OUTPUT_ARCH(arm)
-ENTRY(_start)
-/* SEARCH_DIR(/usr/local/rtems-arm-dev-tools/arm-rtems/lib); */
-
-
 MEMORY {
-	sdram : ORIGIN = 0xc000000, LENGTH = 7M
+	SDRAM_MMU : ORIGIN = 0x0c000000, LENGTH = 16k
+	SDRAM : ORIGIN = 0x0c004000, LENGTH = 7M - 16k
+	NIRVANA : ORIGIN = 0, LENGTH = 0
 }
 
-/*
+REGION_ALIAS ("REGION_START", SDRAM);
- * Declare some sizes.
+REGION_ALIAS ("REGION_VECTOR", SDRAM);
- */
+REGION_ALIAS ("REGION_TEXT", SDRAM);
+REGION_ALIAS ("REGION_TEXT_LOAD", SDRAM);
+REGION_ALIAS ("REGION_RODATA", SDRAM);
+REGION_ALIAS ("REGION_RODATA_LOAD", SDRAM);
+REGION_ALIAS ("REGION_DATA", SDRAM);
+REGION_ALIAS ("REGION_DATA_LOAD", SDRAM);
+REGION_ALIAS ("REGION_FAST_TEXT", SDRAM);
+REGION_ALIAS ("REGION_FAST_TEXT_LOAD", SDRAM);
+REGION_ALIAS ("REGION_FAST_DATA", SDRAM);
+REGION_ALIAS ("REGION_FAST_DATA_LOAD", SDRAM);
+REGION_ALIAS ("REGION_BSS", SDRAM);
+REGION_ALIAS ("REGION_WORK", SDRAM);
+REGION_ALIAS ("REGION_STACK", SDRAM);
 
-/* The base for SDRAM is set to umon's APPRAMBASE */
+_ttbl_base = ORIGIN (SDRAM_MMU);
-_sdram_base = DEFINED(_sdram_base) ? _sdram_base : 0xc000000;
-_sdram_size = DEFINED(_sdram_size) ? _sdram_size : 7M;
-
-RamBase = _sdram_base;
-RamSize = _sdram_size;
-HeapSize = DEFINED(HeapSize) ? HeapSize : 0x0;
-
-_irq_stack_size = DEFINED(_irq_stack_size) ? _irq_stack_size : 0x1000;
-_fiq_stack_size = DEFINED(_fiq_stack_size) ? _fiq_stack_size : 0x400;
-_abt_stack_size = DEFINED(_abt_stack_size) ? _abt_stack_size : 0x100;
-_svc_stack_size = DEFINED(_svc_stack_size) ? _svc_stack_size : 0x1000;
-
-
-
-/* Do we need any of these for elf?
-   __DYNAMIC = 0;    */
-
-SECTIONS
-{
-  .base :
-  {
-    arm_exception_table = .;    
-
-    arm_reset_vect    = .;     /* 0x00 */
-    . += 4;
-
-    arm_undef_vect    = .;     /* 0x04 */
-    . += 4;
-
-    arm_swi_vect      = .;     /* 0x08 */
-    . += 4;
-
-    arm_iabrt_vect    = .;     /* 0x0c */
-    . += 4;
-
-    arm_dabrt_vect    = .;     /* 0x10 */
-    . += 4;
-
-    /* no vector here */
-    . += 4;
-
-    arm_irq_vect      = .;     /* 0x18 */
-    . += 4;
-
-    arm_fiq_vect      = .;     /* 0x1c */
-    . += 4;
-			      /* FIXME: */
-
-    rtems_vector_table = .;
-    . += (8 * 4);                     /* 8 ARM interrupts */
-	
-    bsp_vector_table = .;
-    . += (32 * 4);                    /* 32 S3C2400 interrupts */
-
-    . = ALIGN (0x100);
-
-
-  } > sdram
-
-
-  .text      :
-  {
-    _axf_text_start = . ;
-    *(EXCLUDE_FILE (*text.iwram*) .text)
-    *(.text.*)
-    *(.stub)
-
-    /*
-     * Special FreeBSD sysctl sections.
-     */
-    . = ALIGN (16);
-    __start_set_sysctl_set = .;
-    *(set_sysctl_*);
-    __stop_set_sysctl_set = ABSOLUTE(.);
-    *(set_domain_*);
-    *(set_pseudo_*);
-
-    /* .gnu.warning sections are handled specially by elf32.em.  */
-    *(.gnu.warning)
-    *(.gnu.linkonce.t*)
-    *(.glue_7)
-    *(.glue_7t)
-
-    . = ALIGN(4);  /* REQUIRED. LD is flaky without it. */
-  } > sdram
-
-  __text_end = . ;
-
-  .init          : 
-  { 
-    *(.init)
-  } > sdram   /*=0*/
-
-  .jcr : 
-  { 
-    *(.jcr) 
-  } > sdram
-
-
-  .fini      :
-  {
-    *(.fini)
-  } > sdram  /*=0*/
-
-  .rodata :
-  {
-    *(.rodata)
-    *all.rodata*(*)
-    *(.roda)
-    *(.rodata.*)
-    *(.gnu.linkonce.r*)
-    SORT(CONSTRUCTORS)
-    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-  } > sdram = 0xff
-
-  .ctors :
-  {
-    /* gcc uses crtbegin.o to find the start of the constructors, so
-       we make sure it is first.  Because this is a wildcard, it
-       doesn't matter if the user does not actually link against
-       crtbegin.o; the linker won't look for a file to match a
-       wildcard.  The wildcard also means that it doesn't matter which
-       directory crtbegin.o is in.  */
-    KEEP (*crtbegin.o(.ctors))
-    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
-    KEEP (*(SORT(.ctors.*)))
-    KEEP (*(.ctors))
-    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-  } >sdram = 0
-
-  .dtors :
-  {
-    KEEP (*crtbegin.o(.dtors))
-    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
-    KEEP (*(SORT(.dtors.*)))
-    KEEP (*(.dtors))
-    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-  } >sdram = 0
-
-
-  .eh_frame :
-  {
-    KEEP (*(.eh_frame))
-    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-  } >sdram = 0
-
-  .gcc_except_table :
-  {
-    *(.gcc_except_table*)
-    . = ALIGN(4);   /* REQUIRED. LD is flaky without it. */
-  } >sdram = 0
-  _axf_ro_end = . ;
-
-  .data ALIGN(4) :
-  {
-    _axf_data_start = ABSOLUTE(.);
-    *(.data)
-    *(.data.*)
-    *(.gnu.linkonce.d*)
-    CONSTRUCTORS
-    . = ALIGN(4);  /* REQUIRED. LD is flaky without it. */
-  } >sdram = 0xff
-
-  __data_end  =  . ;
-
-  .bss ALIGN(4):
-  {
-	_axf_bss_start = ABSOLUTE(.);
-	_clear_start = .;
-	*(.bss)
-	*(.bss.*)
-	*(.gnu.linkonce.b.*)
-	*(COMMON)
-	. = ALIGN(64);
-	_clear_end = .;
-
-	. = ALIGN (256);
-	_abt_stack = .;
-	. += _abt_stack_size;
-
-	. = ALIGN (256);
-	_irq_stack = .;
-	. += _irq_stack_size;
-
-	. = ALIGN (256);
-	_fiq_stack = .;
-	. += _fiq_stack_size;
-
-	. = ALIGN (256);
-	_svc_stack = .;
-	. += _svc_stack_size;
-
-/* 
- * Ideally, the MMU's translation table would be in SRAM. But we
- * don't have any. If we don't use more regions than TLB entries (64),
- * the lookup will only happen once for each region.
- */
-	. = ALIGN (16 * 1024);
-	_ttbl_base = .;
-	. += (16 * 1024);
-
-	. = ALIGN (1024);
-	_bss_free_start = .;
-	WorkAreaBase = .;
-
-  } > sdram
-  _axf_bss_end = . ;
-
-  _end = . ;
-  __end__ = . ;
-  PROVIDE (end = _end);
-
-
-/* Debugging stuff follows? */
-
-  /* Stabs debugging sections.  */
-  .stab 0 : { *(.stab) } 
-  .stabstr 0 : { *(.stabstr) } 
-  .stab.excl 0 : { *(.stab.excl) } 
-  .stab.exclstr 0 : { *(.stab.exclstr) }
-  .stab.index 0 : { *(.stab.index) } 
-  .stab.indexstr 0 : { *(.stab.indexstr) } 
-  .comment 0 : { *(.comment) }
-  /* DWARF debug sections.
-     Symbols in the DWARF debugging sections are relative to the beginning
-     of the section so we begin them at 0.  */
-  /* DWARF 1 */
-  .debug          0 : { *(.debug) }
-  .line           0 : { *(.line) }
-  /* GNU DWARF 1 extensions */
-  .debug_srcinfo  0 : { *(.debug_srcinfo) }
-  .debug_sfnames  0 : { *(.debug_sfnames) }
-  /* DWARF 1.1 and DWARF 2 */
-  .debug_aranges  0 : { *(.debug_aranges) }
-  .debug_pubnames 0 : { *(.debug_pubnames) }
-  /* DWARF 2 */
-  .debug_info     0 : { *(.debug_info) }
-  .debug_abbrev   0 : { *(.debug_abbrev) }
-  .debug_line     0 : { *(.debug_line) }
-  .debug_frame    0 : { *(.debug_frame) }
-  .debug_str      0 : { *(.debug_str) } 
-  .debug_loc      0 : { *(.debug_loc) }
-  .debug_macinfo  0 : { *(.debug_macinfo) } 
-  /* SGI/MIPS DWARF 2 extensions */
-  .debug_weaknames 0 : { *(.debug_weaknames) }
-  .debug_funcnames 0 : { *(.debug_funcnames) }
-  .debug_typenames 0 : { *(.debug_typenames) }
-  .debug_varnames  0 : { *(.debug_varnames) } 
-  /*.stack 0x80000 : { _stack = .; *(.stack) }*/
-  /* These must appear regardless of  .  */
-}
 
+INCLUDE linkcmds.armv4