forked from Imagelibrary/rtems
2005-11-03 straumanatslacdotstanforddotedu
* startup/linkcmds: Removed.
* Makefile.am, start/preload.S, startup/bspstart.c: use linkcmds
from shared area - this version seemed broken anyways. Let the
preloader use the generic 'entry_point_section' rather than its own
'mvme5500_preloader_section'. Also, let zero_bss use (implicit?)
__SBSSxxx__ symbols.
This commit is contained in:
Till Straumann
@@ -1,3 +1,12 @@
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|||||||
|
2005-11-03 straumanatslacdotstanforddotedu
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||||||
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|
* startup/linkcmds: Removed.
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* Makefile.am, start/preload.S, startup/bspstart.c: use linkcmds
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||||||
|
from shared area - this version seemed broken anyways. Let the
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||||||
|
preloader use the generic 'entry_point_section' rather than its own
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|
'mvme5500_preloader_section'. Also, let zero_bss use (implicit?)
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|
__SBSSxxx__ symbols.
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||||||
|
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||||||
2005-11-03 Ralf Corsepius <ralf.corsepius@rtems.org>
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2005-11-03 Ralf Corsepius <ralf.corsepius@rtems.org>
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PR 844/bsps
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PR 844/bsps
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@@ -21,7 +21,7 @@ noinst_PROGRAMS =
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include_bspdir = $(includedir)/bsp
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include_bspdir = $(includedir)/bsp
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|
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###
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###
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dist_project_lib_DATA += startup/linkcmds
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dist_project_lib_DATA += ../shared/startup/linkcmds
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|
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# UNUSED
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# UNUSED
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EXTRA_DIST = startup/bootpstuff.c
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EXTRA_DIST = startup/bootpstuff.c
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@@ -187,7 +187,7 @@ $(PROJECT_INCLUDE)/bsp/$(dirstamp):
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@: > $(PROJECT_INCLUDE)/bsp/$(dirstamp)
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@: > $(PROJECT_INCLUDE)/bsp/$(dirstamp)
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PREINSTALL_DIRS += $(PROJECT_INCLUDE)/bsp/$(dirstamp)
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PREINSTALL_DIRS += $(PROJECT_INCLUDE)/bsp/$(dirstamp)
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|
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$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
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$(PROJECT_LIB)/linkcmds: ../shared/startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
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$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
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PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
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PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
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|
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@@ -103,7 +103,7 @@
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PUBLIC_VAR(__rtems_start)
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PUBLIC_VAR(__rtems_start)
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PUBLIC_VAR(__rtems_entry_point)
|
PUBLIC_VAR(__rtems_entry_point)
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PUBLIC_VAR(__rtems_end)
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PUBLIC_VAR(__rtems_end)
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.section .mvme5500_preloader_section,"awx",@progbits
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.section .entry_point_section,"awx",@progbits
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preload:
|
preload:
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/* find out where we are */
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/* find out where we are */
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bl here
|
bl here
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@@ -211,10 +211,10 @@ void bsp_pretasking_hook(void)
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void zero_bss()
|
void zero_bss()
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{
|
{
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||||||
/* prevent these from being accessed in the short data areas */
|
/* prevent these from being accessed in the short data areas */
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||||||
extern unsigned long __bss_start[], __sbss_start[], __sbss_end[];
|
extern unsigned long __bss_start[], __SBSS_START__[], __SBSS_END__[];
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extern unsigned long __sbss2_start[], __sbss2_end[];
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extern unsigned long __SBSS2_START__[], __SBSS2_END__[];
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memset(__sbss_start, 0, ((unsigned) __sbss_end) - ((unsigned)__sbss_start));
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memset(__SBSS_START__, 0, ((unsigned) __SBSS_END__) - ((unsigned)__SBSS_START__));
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memset(__sbss2_start, 0, ((unsigned) __sbss2_end) - ((unsigned)__sbss2_start));
|
memset(__SBSS2_START__, 0, ((unsigned) __SBSS2_END__) - ((unsigned)__SBSS2_START__));
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memset(__bss_start, 0, ((unsigned) __rtems_end) - ((unsigned)__bss_start));
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memset(__bss_start, 0, ((unsigned) __rtems_end) - ((unsigned)__bss_start));
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}
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}
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||||||
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@@ -1,301 +0,0 @@
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OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
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|
||||||
"elf32-powerpc")
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||||||
OUTPUT_ARCH(powerpc)
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|
||||||
ENTRY(_start)
|
|
||||||
/* Do we need any of these for elf?
|
|
||||||
__DYNAMIC = 0; */
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||||||
PROVIDE (__stack = 0);
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||||||
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||||||
|
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||||||
MEMORY {
|
|
||||||
BOTTOM : ORIGIN = 0, LENGTH = 0x100
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|
||||||
VECTORS : ORIGIN = 0x100 , LENGTH = 0x3000-0x100
|
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||||||
CODE : ORIGIN = 0x3000 , LENGTH = 0x400000
|
|
||||||
}
|
|
||||||
SECTIONS
|
|
||||||
{
|
|
||||||
/* discard the 'shared/vector.S' entry point section */
|
|
||||||
/DISCARD/ :
|
|
||||||
{
|
|
||||||
*(.entry_point_section)
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
.vectors :
|
|
||||||
{
|
|
||||||
/* should be the first thing... */
|
|
||||||
*(.mvme5500_preloader_section)
|
|
||||||
|
|
||||||
/*
|
|
||||||
* This section is used only if NO_DYNAMIC_EXCEPTION_VECTOR_INSTALL
|
|
||||||
* is defined in vectors/vectors.S
|
|
||||||
* *(.vectors)
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|
||||||
* We actually RELY on dynamic vector installation since we need
|
|
||||||
* this space for the preloader...
|
|
||||||
*/
|
|
||||||
} > VECTORS
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|
||||||
|
|
||||||
|
|
||||||
/* START OF THE LOADED IMAGE (parts moved by the preloader) */
|
|
||||||
.image_start :
|
|
||||||
{
|
|
||||||
__rtems_start = ABSOLUTE(.);
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|
||||||
} > CODE
|
|
||||||
|
|
||||||
/* Read-only sections, merged into text segment: */
|
|
||||||
.interp : { *(.interp) } > CODE
|
|
||||||
.hash : { *(.hash) } > CODE
|
|
||||||
.dynsym : { *(.dynsym) } > CODE
|
|
||||||
.dynstr : { *(.dynstr) } > CODE
|
|
||||||
.gnu.version : { *(.gnu.version) } > CODE
|
|
||||||
.gnu.version_d : { *(.gnu.version_d) } > CODE
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|
||||||
.gnu.version_r : { *(.gnu.version_r) } > CODE
|
|
||||||
.rela.text :
|
|
||||||
{ *(.rela.text) *(.rela.gnu.linkonce.t*) } > CODE
|
|
||||||
.rela.data :
|
|
||||||
{ *(.rela.data) *(.rela.gnu.linkonce.d*) } > CODE
|
|
||||||
.rela.rodata :
|
|
||||||
{ *(.rela.rodata) *(.rela.gnu.linkonce.r*) } > CODE
|
|
||||||
.rela.got : { *(.rela.got) } > CODE
|
|
||||||
.rela.got1 : { *(.rela.got1) } > CODE
|
|
||||||
.rela.got2 : { *(.rela.got2) } > CODE
|
|
||||||
.rela.ctors : { *(.rela.ctors) } > CODE
|
|
||||||
.rela.dtors : { *(.rela.dtors) } > CODE
|
|
||||||
.rela.init : { *(.rela.init) } > CODE
|
|
||||||
.rela.fini : { *(.rela.fini) } > CODE
|
|
||||||
.rela.bss : { *(.rela.bss) *(.gnu.linkonce.b.*) } > CODE
|
|
||||||
.rela.plt : { *(.rela.plt) } > CODE
|
|
||||||
.rela.sdata : { *(.rela.sdata) } > CODE
|
|
||||||
.rela.sbss : { *(.rela.sbss) *(.gnu.linkonce.sb.*) } > CODE
|
|
||||||
.rela.sdata2 : { *(.rela.sdata2) } > CODE
|
|
||||||
.rela.sbss2 : { *(.rela.sbss2) } > CODE
|
|
||||||
|
|
||||||
.init : { *(.init) } >CODE
|
|
||||||
|
|
||||||
.text :
|
|
||||||
{
|
|
||||||
*(.text)
|
|
||||||
|
|
||||||
/*
|
|
||||||
* 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*)
|
|
||||||
} > CODE
|
|
||||||
|
|
||||||
.fini : { _fini = .; *(.fini) } >CODE
|
|
||||||
.rodata : { *(.rodata*) *(.gnu.linkonce.r*) } > CODE
|
|
||||||
.rodata1 : { *(.rodata1) } > CODE
|
|
||||||
_SDA2_BASE_ = __SDATA2_START__ + 0x8000;
|
|
||||||
.sdata2 : { *(.sdata2) *(.gnu.linkonce.s2.*) } > CODE
|
|
||||||
.sbss2 : {
|
|
||||||
PROVIDE (__sbss2_start = .);
|
|
||||||
*(.sbss2) *(.gnu.linkonce.sb2.*)
|
|
||||||
PROVIDE (__sbss2_end = .);
|
|
||||||
} > CODE
|
|
||||||
.eh_frame : { *.(eh_frame) } >CODE
|
|
||||||
_etext = .;
|
|
||||||
PROVIDE (etext = .);
|
|
||||||
/* Adjust the address for the data segment. We want to adjust up to
|
|
||||||
the same address within the page on the next page up. It would
|
|
||||||
be more correct to do this:
|
|
||||||
. = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1));
|
|
||||||
The current expression does not correctly handle the case of a
|
|
||||||
text segment ending precisely at the end of a page; it causes the
|
|
||||||
data segment to skip a page. The above expression does not have
|
|
||||||
this problem, but it will currently (2/95) cause BFD to allocate
|
|
||||||
a single segment, combining both text and data, for this case.
|
|
||||||
This will prevent the text segment from being shared among
|
|
||||||
multiple executions of the program; I think that is more
|
|
||||||
important than losing a page of the virtual address space (note
|
|
||||||
that no actual memory is lost; the page which is skipped can not
|
|
||||||
be referenced). */
|
|
||||||
.data ALIGN(0x1000) :
|
|
||||||
{
|
|
||||||
PROVIDE(__DATA_START__ = ABSOLUTE(.) );
|
|
||||||
*(.data .data.* .gnu.linkonce.d*)
|
|
||||||
CONSTRUCTORS
|
|
||||||
} > CODE
|
|
||||||
.data1 : { *(.data1) } > CODE
|
|
||||||
PROVIDE (__EXCEPT_START__ = .);
|
|
||||||
.gcc_except_table : { *(.gcc_except_table) } > CODE
|
|
||||||
PROVIDE (__EXCEPT_END__ = .);
|
|
||||||
.got1 : { *(.got1) } > CODE
|
|
||||||
.dynamic : { *(.dynamic) } > CODE
|
|
||||||
/* 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_ = .);
|
|
||||||
.got2 : { *(.got2) } > CODE
|
|
||||||
/*
|
|
||||||
PROVIDE (__CTOR_LIST__ = .);
|
|
||||||
.ctors : { *(.ctors) } > CODE
|
|
||||||
PROVIDE (__CTOR_END__ = .);
|
|
||||||
*/
|
|
||||||
.ctors :
|
|
||||||
{
|
|
||||||
KEEP(*crtbegin.o(.ctors))
|
|
||||||
KEEP(*(EXCLUDE_FILE(*crtend.o) .ctors))
|
|
||||||
KEEP(*(SORT(.ctors.*)))
|
|
||||||
KEEP(*(.ctors))
|
|
||||||
} > CODE
|
|
||||||
.dtors :
|
|
||||||
{
|
|
||||||
KEEP(*crtbegin.o(.dtors))
|
|
||||||
KEEP(*(EXCLUDE_FILE(*crtend.o) .dtors))
|
|
||||||
KEEP(*(SORT(.dtors.*)))
|
|
||||||
KEEP(*(.dtors))
|
|
||||||
} > CODE
|
|
||||||
/*
|
|
||||||
PROVIDE (__DTOR_LIST__ = .);
|
|
||||||
.dtors : { *(.dtors) } > CODE
|
|
||||||
PROVIDE (__DTOR_END__ = .);
|
|
||||||
*/
|
|
||||||
PROVIDE (_FIXUP_START_ = .);
|
|
||||||
.fixup : { *(.fixup) } > CODE
|
|
||||||
PROVIDE (_FIXUP_END_ = .);
|
|
||||||
PROVIDE (_GOT2_END_ = .);
|
|
||||||
PROVIDE (_GOT_START_ = .);
|
|
||||||
.got : { *(.got) } > CODE
|
|
||||||
.got.plt : { *(.got.plt) } > CODE
|
|
||||||
PROVIDE (_GOT_END_ = .);
|
|
||||||
|
|
||||||
.jcr : { KEEP (*(.jcr)) } > CODE
|
|
||||||
|
|
||||||
/* We want the small data sections together, so single-instruction offsets
|
|
||||||
can access them all, and initialized data all before uninitialized, so
|
|
||||||
we can shorten the on-disk segment size. */
|
|
||||||
_SDA_BASE_ = __SDATA_START__ + 0x8000;
|
|
||||||
.sdata : { *(.sdata) *(.gnu.linkonce.s.*) } > CODE
|
|
||||||
_edata = .;
|
|
||||||
PROVIDE (edata = .);
|
|
||||||
/* END OF THE LOADED IMAGE (parts moved by the preloader) */
|
|
||||||
/* BELOW THIS POINT, NO LOADABLE ITEMS MUST APPEAR */
|
|
||||||
.sbss :
|
|
||||||
{
|
|
||||||
PROVIDE (__sbss_start = ABSOLUTE(.));
|
|
||||||
*(.sbss)
|
|
||||||
*(.scommon)
|
|
||||||
*(.dynsbss)
|
|
||||||
PROVIDE (__sbss_end = ABSOLUTE(.));
|
|
||||||
} > CODE
|
|
||||||
.plt : { *(.plt) } > CODE
|
|
||||||
.bss :
|
|
||||||
{
|
|
||||||
PROVIDE (__bss_start = ABSOLUTE(.));
|
|
||||||
*(.dynbss)
|
|
||||||
*(.bss)
|
|
||||||
*(COMMON)
|
|
||||||
. = ALIGN(16);
|
|
||||||
} > CODE
|
|
||||||
/* proper alignment for SYSV stack
|
|
||||||
* (init stack is allocated just after __rtems_end
|
|
||||||
*/
|
|
||||||
. = ALIGN(16);
|
|
||||||
_end = . ;
|
|
||||||
__rtems_end = . ;
|
|
||||||
PROVIDE (end = .);
|
|
||||||
/DISCARD/ :
|
|
||||||
{
|
|
||||||
*(.comment)
|
|
||||||
}
|
|
||||||
|
|
||||||
|
|
||||||
/* 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) }
|
|
||||||
/* These must appear regardless of . */
|
|
||||||
}
|
|
||||||
|
|
||||||
/* "Conditional linking" is not supported, unfortunately.
|
|
||||||
* This BSP supports getting a network configuration
|
|
||||||
* from NVRAM settings. Hence, the startup code must
|
|
||||||
* access the 'rtems_bsdnet_config' structure.
|
|
||||||
* However, that symbol (and a couple of other networking
|
|
||||||
* related symbols) should only be referenced if the application
|
|
||||||
* actually does networking - otherwise a lot of
|
|
||||||
* code would pulled in from the libnetworking.a under
|
|
||||||
* all circumstances.
|
|
||||||
*
|
|
||||||
* bspstart.c uses these alias names and determines
|
|
||||||
* at runtime if they are void or valid (by comparing
|
|
||||||
* against the NULL address).
|
|
||||||
*
|
|
||||||
* Unfortunately, it is not possible to conditionally
|
|
||||||
* declare a symbol 'EXTERN' - hence we must rely on
|
|
||||||
* other code (probably cross-references within
|
|
||||||
* libnetworking itself) causing a reference to the
|
|
||||||
* 'real' symbols...
|
|
||||||
*/
|
|
||||||
|
|
||||||
__BSP_wrap_rtems_bsdnet_bootp_boot_file_name =
|
|
||||||
DEFINED(rtems_bsdnet_bootp_boot_file_name) ?
|
|
||||||
rtems_bsdnet_bootp_boot_file_name
|
|
||||||
: 0 ;
|
|
||||||
__BSP_wrap_rtems_bsdnet_bootp_cmdline =
|
|
||||||
DEFINED(rtems_bsdnet_bootp_cmdline) ?
|
|
||||||
rtems_bsdnet_bootp_cmdline
|
|
||||||
: 0 ;
|
|
||||||
__BSP_wrap_rtems_bsdnet_bootp_server_address =
|
|
||||||
DEFINED(rtems_bsdnet_bootp_server_address) ?
|
|
||||||
rtems_bsdnet_bootp_server_address
|
|
||||||
: 0 ;
|
|
||||||
__BSP_wrap_rtems_bsdnet_config =
|
|
||||||
DEFINED(rtems_bsdnet_config) ?
|
|
||||||
rtems_bsdnet_config
|
|
||||||
: 0 ;
|
|
||||||
__BSP_wrap_rtems_bsdnet_do_bootp =
|
|
||||||
DEFINED(rtems_bsdnet_do_bootp) ?
|
|
||||||
rtems_bsdnet_do_bootp
|
|
||||||
: 0 ;
|
|
||||||
__BSP_wrap_inet_pton =
|
|
||||||
DEFINED(inet_pton) ?
|
|
||||||
inet_pton
|
|
||||||
: 0 ;
|
|
||||||
__BSP_wrap_rtems_bsdnet_loopattach =
|
|
||||||
DEFINED(rtems_bsdnet_loopattach) ?
|
|
||||||
rtems_bsdnet_loopattach
|
|
||||||
: 0 ;
|
|
||||||
Reference in New Issue
Block a user