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bsps/powerpc: Use shared linker command file

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Close #3339.
This commit is contained in:
Sebastian Huber
2018-03-16 15:09:36 +01:00
parent 9860cc7bba
commit 2e5cf7fb53
4 changed files with 42 additions and 225 deletions
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20
c/src/lib/libbsp/powerpc/qemuppc/start/start.S
View File

@@ -3,13 +3,15 @@
#include <bspopts.h>
#.section ".text"
.section .entry_point_section,"awx",@progbits
.global _start
.global bsp_interrupt_stack_start
.global bsp_interrupt_stack_end
.global _start
.section .bsp_start_text,"awx",@progbits
_start:
lis %r1,_stack@h
ori %r1,%r1,_stack@l
lis %r1,bsp_interrupt_stack_start@h
ori %r1,%r1,bsp_interrupt_stack_start@l
/* Make sure stack is properly aligned */
li %r3, CPU_STACK_ALIGNMENT - 1
andc %r1, %r1, %r3
@@ -40,3 +42,11 @@ __eabi:
_reset:
b _start
.size _reset, . - _reset
/* Start stack area */
.section ".bsp_rwextra", "aw", @nobits
.align 4
.space 4096
bsp_interrupt_stack_start:
.space 32768
bsp_interrupt_stack_end:

3
c/src/lib/libbsp/powerpc/qemuppc/startup/bspstart.c
View File

@@ -44,7 +44,6 @@ uint32_t bsp_clicks_per_usec;
extern char RamSize[];
extern char bsp_interrupt_stack_start[];
extern char bsp_interrupt_stack_end[];
extern char bsp_interrupt_stack_size[];
uint32_t BSP_mem_size = (uint32_t)RamSize;
/* Default decrementer exception handler */
@@ -87,7 +86,7 @@ void bsp_start( void )
* Initialize the interrupt related settings.
*/
intrStackStart = (uintptr_t) bsp_interrupt_stack_start;
intrStackSize = (uintptr_t) bsp_interrupt_stack_size;
intrStackSize = (uintptr_t) bsp_interrupt_stack_end - intrStackStart;
BSP_mem_size = (uint32_t )RamSize;

17
c/src/lib/libbsp/powerpc/qemuppc/startup/cmain.c
View File

@@ -1,4 +1,5 @@
#include <bsp/bootcard.h>
#include <bsp/linker-symbols.h>
static void
__outb(int port, unsigned char v)
@@ -30,13 +31,6 @@ __bzero (unsigned char *d, int len)
*d++ = 0;
}
extern unsigned char __sdata2_load[], __sdata2_start[], __sdata2_end[];
extern unsigned char __data_load[], __data_start[], __data_end[];
extern unsigned char __sdata_load[], __sdata_start[], __sdata_end[];
extern unsigned char __sbss2_start[], __sbss2_end[];
extern unsigned char __sbss_start[], __sbss_end[];
extern unsigned char __bss_start[], __bss_end[];
/*
* Prototype this here because it is just the entry symbol and
@@ -49,12 +43,9 @@ void cmain (void)
/*
* init variable sections
*/
__memcpy (__sdata2_start, __sdata2_load, __sdata2_end - __sdata2_start);
__memcpy (__sdata_start , __sdata_load , __sdata_end - __sdata_start);
__memcpy (__data_start , __data_load , __data_end - __data_start);
__bzero (__sbss2_start , __sbss2_end - __sbss2_start);
__bzero (__sbss_start , __sbss_end - __sbss_start);
__bzero (__bss_start , __bss_end - __bss_start);
__memcpy (bsp_section_data_begin, bsp_section_data_load_begin, (int)bsp_section_data_size);
__bzero (bsp_section_bss_begin, (int)bsp_section_bss_size);
__bzero (bsp_section_sbss_begin, (int)bsp_section_sbss_size);
/* printk( "start of BSP\n"); */
boot_card(0);
/* printk( "end of BSP\n"); */

227
c/src/lib/libbsp/powerpc/qemuppc/startup/linkcmds
View File

@@ -1,221 +1,38 @@
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
"elf32-powerpc")
OUTPUT_ARCH(powerpc:common)
ENTRY(_start)
STARTUP(start.o)
EXTERN(__vectors)
MEMORY
{
RAM : ORIGIN = 0, LENGTH = 4M
EMPTY : ORIGIN = 0, LENGTH = 0
RAM : ORIGIN = 0x2000, LENGTH = 4M - 0x2000
ROM : ORIGIN = 0xFFC00000, LENGTH = 4M
VECTORS : ORIGIN = 0xFFF00000, LENGTH = 0x20000
RESET : ORIGIN = 0xFFFFFFFC, LENGTH = 0x4
}
RamBase = DEFINED(RamBase) ? RamBase : 0x0;
RamSize = DEFINED(RamSize) ? RamSize : 4M;
HeapSize = DEFINED(HeapSize) ? HeapSize : 0;
bsp_section_align = 32;
SECTIONS
{
/* Read-only sections, merged into text segment: */
. = 0xfffc0000;
/*
.entry_point_section :
{
} =0
*/
.text :
{
*(.entry_point_section)
*(.text .text.* .gnu.linkonce.t.*)
*(.eh_frame_hdr*)
*(.eh_frame*)
/*
* 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)
. = ALIGN (bsp_section_align);
__text_end = .;
} >ROM =0
.init :
{
KEEP (*(.init))
} >ROM =0
.fini :
{
_fini = .;
KEEP (*(.fini))
} >ROM =0
/* Put .ctors and .dtors next to the .got2 section, so that the pointers
get relocated with -mrelocatable. Also put in the .fixup pointers.
The current compiler no longer needs this, but keep it around for 2.7.2 */
PROVIDE (__GOT2_START__ = .);
PROVIDE (_GOT2_START_ = .);
.got2 : { *(.got2) } >ROM =0
PROVIDE (__GOT2_END__ = .);
PROVIDE (_GOT2_END_ = .);
PROVIDE (__CTOR_LIST__ = .);
.ctors : { *(.ctors) } >ROM =0
PROVIDE (__CTOR_END__ = .);
PROVIDE (__DTOR_LIST__ = .);
.dtors : { *(.dtors) } >ROM =0
PROVIDE (__DTOR_END__ = .);
.jcr : { KEEP (*(.jcr)) } > ROM =0
.tdata : {
_TLS_Data_begin = .;
*(.tdata .tdata.* .gnu.linkonce.td.*)
_TLS_Data_end = .;
} >ROM =0
.tbss : {
_TLS_BSS_begin = .;
*(.tbss .tbss.* .gnu.linkonce.tb.*) *(.tcommon)
_TLS_BSS_end = .;
} >ROM =0
_TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
_TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
_TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
_TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
_TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
_TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
.rodata :
{
*(.rodata .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
KEEP (*(SORT(.rtemsroset.*)))
. = ALIGN (bsp_section_align);
__rodata_end = .;
} >ROM =0
.vectors :
{
. = . + 0x2000; /* skip vector area */
} >RAM
__sdata2_load = __rodata_end;
.sdata2 : AT (__sdata2_load)
{
__sdata2_start = .;
PROVIDE (_SDA2_BASE_ = 32768);
*(.sdata2 .sdata2.* .gnu.linkonce.s2.*)
. = ALIGN (bsp_section_align);
__sdata2_end = .;
} >RAM
.sbss2 :
{
__sbss2_start = .;
*(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
. = ALIGN (bsp_section_align);
__sbss2_end = .;
} >RAM
__data_load = __sdata2_load + SIZEOF (.sdata2);
.data : AT(__data_load)
{
__data_start = .;
*(.data .data.* .gnu.linkonce.d.*)
KEEP (*(SORT(.rtemsrwset.*)))
KEEP (*(.gnu.linkonce.d.*personality*))
SORT(CONSTRUCTORS)
*(.data1)
. = ALIGN (bsp_section_align);
__data_end = .;
} >RAM
__sdata_load = __data_load + SIZEOF (.data);
.sdata : AT(__sdata_load) {
__sdata_start = .;
PROVIDE (_SDA_BASE_ = 32768);
*(.sdata .sdata.* .gnu.linkonce.s.*)
. = ALIGN (bsp_section_align);
_edata = .;
__sdata_end = .;
PROVIDE (edata = .);
/*
* BSP: End of data section
*/
bsp_section_data_end = .;
} > RAM
PROVIDE (__EXCEPT_START__ = .);
.gcc_except_table : { *(.gcc_except_table*) } >RAM
PROVIDE (__EXCEPT_END__ = .);
.sbss :
{
__sbss_start = .;
*(.dynsbss)
*(.sbss .sbss.* .gnu.linkonce.sb.*)
*(.scommon)
. = ALIGN (bsp_section_align);
__sbss_end = .;
} >RAM
.bss :
{
__bss_start = .;
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN (bsp_section_align);
__bss_end = .;
/* Allocate the main stack area. Make sure it starts 16bytes aligned
to accommodate any possible program expectation. */
_stack = ALIGN(16) + 0x1000;
_end = _stack;
} >RAM
/*
* BSP: Interrupt stack
*/
bsp_interrupt_stack_start = _end;
bsp_interrupt_stack_end = bsp_interrupt_stack_start + 32k;
bsp_interrupt_stack_size = bsp_interrupt_stack_end - bsp_interrupt_stack_start;
bsp_work_area_start = bsp_interrupt_stack_end;
WorkAreaBase = bsp_work_area_start;
. = RamBase + RamSize;
REGION_ALIAS ("REGION_START", ROM);
REGION_ALIAS ("REGION_FAST_TEXT", ROM);
REGION_ALIAS ("REGION_FAST_TEXT_LOAD", ROM);
REGION_ALIAS ("REGION_TEXT", ROM);
REGION_ALIAS ("REGION_TEXT_LOAD", ROM);
REGION_ALIAS ("REGION_RODATA", ROM);
REGION_ALIAS ("REGION_RODATA_LOAD", ROM);
REGION_ALIAS ("REGION_FAST_DATA", RAM);
REGION_ALIAS ("REGION_FAST_DATA_LOAD", ROM);
REGION_ALIAS ("REGION_DATA", RAM);
REGION_ALIAS ("REGION_DATA_LOAD", ROM);
REGION_ALIAS ("REGION_BSS", RAM);
REGION_ALIAS ("REGION_RWEXTRA", RAM);
REGION_ALIAS ("REGION_WORK", RAM);
REGION_ALIAS ("REGION_STACK", RAM);
REGION_ALIAS ("REGION_NOCACHE", EMPTY);
REGION_ALIAS ("REGION_NOCACHE_LOAD", EMPTY);
REGION_ALIAS ("REGION_NVRAM", EMPTY);
SECTIONS {
.reset :
{
KEEP(*(.reset))
} >RESET
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.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) }
/DISCARD/ : { *(.note.GNU-stack) }
}
INCLUDE linkcmds.base