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2011-03-29 Sebastian Huber <sebastian.huber@embedded-brains.de>

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* shared/start/start.S: Default exception handler will result in
	bsp_reset().
	* shared/startup/linkcmds.base: Move unsupported sections into
	read-only section.  Changed barrier sections.
This commit is contained in:
Sebastian Huber
2011-03-28 08:49:58 +00:00
parent 2e031c64c2
commit 305234f7ab
3 changed files with 151 additions and 131 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
c/src/lib/libbsp/arm/ChangeLog
View File

@@ -1,3 +1,10 @@
2011-03-29 Sebastian Huber <sebastian.huber@embedded-brains.de>
* shared/start/start.S: Default exception handler will result in
bsp_reset().
* shared/startup/linkcmds.base: Move unsupported sections into
read-only section. Changed barrier sections.
2011-02-11 Ralf Corsépius <ralf.corsepius@rtems.org>
* shared/abort/abort.c, shared/abort/simple_abort.c:

23
c/src/lib/libbsp/arm/shared/start/start.S
View File

@@ -68,31 +68,31 @@ handler_addr_reset:
handler_addr_undef:
.word twiddle
.word reset
handler_addr_swi:
.word twiddle
.word reset
handler_addr_prefetch:
.word twiddle
.word reset
handler_addr_abort:
.word twiddle
.word reset
handler_addr_reserved:
.word twiddle
.word reset
handler_addr_irq:
.word twiddle
.word reset
handler_addr_fiq:
.word twiddle
.word reset
/* Start entry */
@@ -184,15 +184,18 @@ bsp_start_hook_0_done:
mov r0, #0
bl boot_card
twiddle:
/* Branch to reset function */
bl bsp_reset
SWITCH_FROM_THUMB_TO_ARM
b twiddle
/* Spin forever */
.arm
twiddle:
reset:
SWITCH_FROM_ARM_TO_THUMB r0
b twiddle
DEFINE_FUNCTION_ARM(bsp_start_memcpy)

252
c/src/lib/libbsp/arm/shared/startup/linkcmds.base
View File

@@ -32,8 +32,9 @@ ENTRY (_start)
bsp_vector_table_size = DEFINED (bsp_vector_table_size) ? bsp_vector_table_size : 64;
bsp_section_vbarrier_align = DEFINED (bsp_section_vbarrier_align) ? bsp_section_vbarrier_align : 1;
bsp_section_xbarrier_align = DEFINED (bsp_section_xbarrier_align) ? bsp_section_xbarrier_align : 1;
bsp_section_robarrier_align = DEFINED (bsp_section_robarrier_align) ? bsp_section_robarrier_align : 1;
bsp_section_rwbarrier_align = DEFINED (bsp_section_rwbarrier_align) ? bsp_section_rwbarrier_align : 1;
bsp_stack_align = DEFINED (bsp_stack_align) ? bsp_stack_align : 8;
@@ -102,107 +103,47 @@ SECTIONS {
bsp_vector_table_begin = DEFINED (bsp_vector_table_in_start_section) ? bsp_section_start_begin : bsp_section_vector_begin;
bsp_vector_table_end = bsp_vector_table_begin + bsp_vector_table_size;
.vbarrier : {
. = ALIGN (bsp_section_vbarrier_align);
.xbarrier : {
. = ALIGN (bsp_section_xbarrier_align);
} > REGION_VECTOR
.interp : {
.fast_text : {
bsp_section_fast_text_begin = .;
*(.bsp_fast_text)
bsp_section_fast_text_end = .;
} > REGION_FAST_TEXT AT > REGION_FAST_TEXT_LOAD
bsp_section_fast_text_size = bsp_section_fast_text_end - bsp_section_fast_text_begin;
bsp_section_fast_text_load_begin = LOADADDR (.fast_text);
bsp_section_fast_text_load_end = bsp_section_fast_text_load_begin + bsp_section_fast_text_size;
.text : {
bsp_section_text_begin = .;
*(.interp)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.note.gnu.build-id : {
*(.note.gnu.build-id)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.hash : {
*(.hash)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.gnu.hash : {
*(.gnu.hash)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.dynsym : {
*(.dynsym)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.dynstr : {
*(.dynstr)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.gnu.version : {
*(.gnu.version)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.gnu.version_d : {
*(.gnu.version_d)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.gnu.version_r : {
*(.gnu.version_r)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.rel.dyn : {
*(.rel.init)
*(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
*(.rel.fini)
*(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
*(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
*(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
*(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
*(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
*(.rel.ctors)
*(.rel.dtors)
*(.rel.got)
*(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
PROVIDE_HIDDEN (__rel_iplt_start = .);
*(.rel.iplt)
PROVIDE_HIDDEN (__rel_iplt_end = .);
PROVIDE_HIDDEN (__rela_iplt_start = .);
PROVIDE_HIDDEN (__rela_iplt_end = .);
} > REGION_TEXT AT > REGION_TEXT_LOAD
.rela.dyn : {
*(.rela.init)
*(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
*(.rela.fini)
*(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
*(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
*(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
*(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
*(.rela.ctors)
*(.rela.dtors)
*(.rela.got)
*(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
PROVIDE_HIDDEN (__rel_iplt_start = .);
PROVIDE_HIDDEN (__rel_iplt_end = .);
PROVIDE_HIDDEN (__rela_iplt_start = .);
*(.rela.iplt)
PROVIDE_HIDDEN (__rela_iplt_end = .);
} > REGION_TEXT AT > REGION_TEXT_LOAD
.rel.plt : {
*(.rel.plt)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.rela.plt : {
*(.rela.plt)
*(.text.unlikely .text.*_unlikely)
*(.text .stub .text.* .gnu.linkonce.t.*)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.init : {
KEEP (*(.init))
} > REGION_TEXT AT > REGION_TEXT_LOAD
.fini : {
KEEP (*(.fini))
} > REGION_TEXT AT > REGION_TEXT_LOAD
.plt : {
*(.plt)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.iplt : {
*(.iplt)
} > REGION_TEXT AT > REGION_TEXT_LOAD
.text : {
*(.text.unlikely .text.*_unlikely)
*(.text .stub .text.* .gnu.linkonce.t.*)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.glue_7t) *(.glue_7) *(.vfp11_veneer) *(.v4_bx)
bsp_section_text_end = .;
} > REGION_TEXT AT > REGION_TEXT_LOAD
bsp_section_text_size = bsp_section_text_end - bsp_section_text_begin;
bsp_section_text_load_begin = LOADADDR (.interp);
bsp_section_text_load_begin = LOADADDR (.text);
bsp_section_text_load_end = bsp_section_text_load_begin + bsp_section_text_size;
.rodata1 : {
.robarrier : {
. = ALIGN (bsp_section_robarrier_align);
} > REGION_RODATA
.rodata : {
bsp_section_rodata_begin = .;
*(.rodata .rodata.* .gnu.linkonce.r.*)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rodata1 : {
*(.rodata1)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.ARM.extab : {
@@ -276,17 +217,89 @@ SECTIONS {
.got : {
*(.got.plt) *(.igot.plt) *(.got) *(.igot)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rodata : {
/* Special FreeBSD sysctl sections */
. = ALIGN (16);
.interp : {
*(.interp)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.note.gnu.build-id : {
*(.note.gnu.build-id)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.hash : {
*(.hash)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.hash : {
*(.gnu.hash)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.dynsym : {
*(.dynsym)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.dynstr : {
*(.dynstr)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.version : {
*(.gnu.version)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.version_d : {
*(.gnu.version_d)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.gnu.version_r : {
*(.gnu.version_r)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rel.dyn : {
*(.rel.init)
*(.rel.text .rel.text.* .rel.gnu.linkonce.t.*)
*(.rel.fini)
*(.rel.rodata .rel.rodata.* .rel.gnu.linkonce.r.*)
*(.rel.data.rel.ro* .rel.gnu.linkonce.d.rel.ro.*)
*(.rel.data .rel.data.* .rel.gnu.linkonce.d.*)
*(.rel.tdata .rel.tdata.* .rel.gnu.linkonce.td.*)
*(.rel.tbss .rel.tbss.* .rel.gnu.linkonce.tb.*)
*(.rel.ctors)
*(.rel.dtors)
*(.rel.got)
*(.rel.bss .rel.bss.* .rel.gnu.linkonce.b.*)
PROVIDE_HIDDEN (__rel_iplt_start = .);
*(.rel.iplt)
PROVIDE_HIDDEN (__rel_iplt_end = .);
PROVIDE_HIDDEN (__rela_iplt_start = .);
PROVIDE_HIDDEN (__rela_iplt_end = .);
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rela.dyn : {
*(.rela.init)
*(.rela.text .rela.text.* .rela.gnu.linkonce.t.*)
*(.rela.fini)
*(.rela.rodata .rela.rodata.* .rela.gnu.linkonce.r.*)
*(.rela.data .rela.data.* .rela.gnu.linkonce.d.*)
*(.rela.tdata .rela.tdata.* .rela.gnu.linkonce.td.*)
*(.rela.tbss .rela.tbss.* .rela.gnu.linkonce.tb.*)
*(.rela.ctors)
*(.rela.dtors)
*(.rela.got)
*(.rela.bss .rela.bss.* .rela.gnu.linkonce.b.*)
PROVIDE_HIDDEN (__rel_iplt_start = .);
PROVIDE_HIDDEN (__rel_iplt_end = .);
PROVIDE_HIDDEN (__rela_iplt_start = .);
*(.rela.iplt)
PROVIDE_HIDDEN (__rela_iplt_end = .);
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rel.plt : {
*(.rel.plt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.rela.plt : {
*(.rela.plt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.plt : {
*(.plt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.iplt : {
*(.iplt)
} > REGION_RODATA AT > REGION_RODATA_LOAD
.robsdsets : {
/* Special FreeBSD linker set sections */
__start_set_sysctl_set = .;
*(set_sysctl_*);
__stop_set_sysctl_set = ABSOLUTE(.);
__stop_set_sysctl_set = .;
*(set_domain_*);
*(set_pseudo_*);
_bsd__start_set_sysinit_set = .;
*(_bsd_set_sysinit_set);
_bsd__stop_set_sysinit_set = .;
_bsd__start_set_modmetadata_set = .;
*(_bsd_set_modmetadata_set);
_bsd__stop_set_modmetadata_set = .;
@@ -294,38 +307,15 @@ SECTIONS {
*(_bsd_set_sysctl_set);
_bsd__stop_set_sysctl_set = .;
*(.rodata .rodata.* .gnu.linkonce.r.*)
bsp_section_rodata_end = .;
} > REGION_RODATA AT > REGION_RODATA_LOAD
bsp_section_rodata_size = bsp_section_rodata_end - bsp_section_rodata_begin;
bsp_section_rodata_load_begin = LOADADDR (.rodata1);
bsp_section_rodata_load_begin = LOADADDR (.rodata);
bsp_section_rodata_load_end = bsp_section_rodata_load_begin + bsp_section_rodata_size;
.robarrier : {
. = ALIGN (bsp_section_robarrier_align);
} > REGION_RODATA
.data1 : {
bsp_section_data_begin = .;
*(.data1)
} > REGION_DATA AT > REGION_DATA_LOAD
.data : {
*(.data .data.* .gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
bsp_section_data_end = .;
} > REGION_DATA AT > REGION_DATA_LOAD
bsp_section_data_size = bsp_section_data_end - bsp_section_data_begin;
bsp_section_data_load_begin = LOADADDR (.data1);
bsp_section_data_load_end = bsp_section_data_load_begin + bsp_section_data_size;
.fast_text : {
bsp_section_fast_text_begin = .;
*(.bsp_fast_text)
bsp_section_fast_text_end = .;
} > REGION_FAST_TEXT AT > REGION_FAST_TEXT_LOAD
bsp_section_fast_text_size = bsp_section_fast_text_end - bsp_section_fast_text_begin;
bsp_section_fast_text_load_begin = LOADADDR (.fast_text);
bsp_section_fast_text_load_end = bsp_section_fast_text_load_begin + bsp_section_fast_text_size;
.rwbarrier : {
. = ALIGN (bsp_section_rwbarrier_align);
} > REGION_DATA
.fast_data : {
bsp_section_fast_data_begin = .;
@@ -336,6 +326,26 @@ SECTIONS {
bsp_section_fast_data_load_begin = LOADADDR (.fast_data);
bsp_section_fast_data_load_end = bsp_section_fast_data_load_begin + bsp_section_fast_data_size;
.data : {
bsp_section_data_begin = .;
*(.data .data.* .gnu.linkonce.d.*)
SORT(CONSTRUCTORS)
} > REGION_DATA AT > REGION_DATA_LOAD
.data1 : {
*(.data1)
} > REGION_DATA AT > REGION_DATA_LOAD
.rwbsdsets : {
/* Special FreeBSD linker set sections */
_bsd__start_set_sysinit_set = .;
*(_bsd_set_sysinit_set);
_bsd__stop_set_sysinit_set = .;
bsp_section_data_end = .;
} > REGION_DATA AT > REGION_DATA_LOAD
bsp_section_data_size = bsp_section_data_end - bsp_section_data_begin;
bsp_section_data_load_begin = LOADADDR (.data);
bsp_section_data_load_end = bsp_section_data_load_begin + bsp_section_data_size;
.bss : {
bsp_section_bss_begin = .;
*(.dynbss)