mirror of
https://gitlab.rtems.org/rtems/rtos/rtems.git
synced 2025-12-05 15:15:44 +00:00
2005-11-03 straumanatslacdotstanforddotedu
* Makefile.am, motorola_powerpc/Makefile.am, mvme5500/Makefile.am, mvme5500/start/preload.S, mvme5500/startup/bspstart.c, shared/startup/bspstart.c: moved linkcmds to shared area for other BSPs to use
This commit is contained in:
Till Straumann
@@ -51,7 +51,7 @@ EXTRA_DIST += shared/start/start.S shared/start/rtems_crti.S
|
||||
|
||||
## shared/startup
|
||||
EXTRA_DIST += shared/startup/bspstart.c shared/startup/pgtbl_setup.c \
|
||||
shared/startup/pgtbl_activate.c
|
||||
shared/startup/pgtbl_activate.c shared/startup/linkcmds
|
||||
|
||||
## shared/tod
|
||||
EXTRA_DIST += shared/tod/todcfg.c
|
||||
|
||||
@@ -37,7 +37,7 @@ rtems_crti.$(OBJEXT): ../../powerpc/shared/start/rtems_crti.S
|
||||
$(CPPASCOMPILE) -DASM -o $@ -c $<
|
||||
project_lib_DATA += rtems_crti.$(OBJEXT)
|
||||
|
||||
dist_project_lib_DATA += startup/linkcmds
|
||||
dist_project_lib_DATA += ../shared/startup/linkcmds
|
||||
|
||||
noinst_PROGRAMS += startup.rel
|
||||
startup_rel_SOURCES = ../../powerpc/shared/startup/bspstart.c \
|
||||
@@ -214,7 +214,7 @@ $(PROJECT_LIB)/rtems_crti.$(OBJEXT): rtems_crti.$(OBJEXT) $(PROJECT_LIB)/$(dirst
|
||||
$(INSTALL_DATA) $< $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
|
||||
TMPINSTALL_FILES += $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
|
||||
|
||||
$(PROJECT_LIB)/linkcmds: startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
|
||||
$(PROJECT_LIB)/linkcmds: ../shared/startup/linkcmds $(PROJECT_LIB)/$(dirstamp)
|
||||
$(INSTALL_DATA) $< $(PROJECT_LIB)/linkcmds
|
||||
PREINSTALL_FILES += $(PROJECT_LIB)/linkcmds
|
||||
|
||||
|
||||
273
c/src/lib/libbsp/powerpc/shared/startup/linkcmds
Normal file
273
c/src/lib/libbsp/powerpc/shared/startup/linkcmds
Normal file
@@ -0,0 +1,273 @@
|
||||
OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc",
|
||||
"elf32-powerpc")
|
||||
OUTPUT_ARCH(powerpc)
|
||||
ENTRY(_start)
|
||||
/* Do we need any of these for elf?
|
||||
__DYNAMIC = 0; */
|
||||
PROVIDE (__stack = 0);
|
||||
MEMORY {
|
||||
VECTORS : ORIGIN = 0x0 , LENGTH = 0x3000
|
||||
CODE : ORIGIN = 0x3000 , LENGTH = 0x400000
|
||||
}
|
||||
SECTIONS
|
||||
{
|
||||
.entry_point_section :
|
||||
{
|
||||
*(.entry_point_section)
|
||||
} > VECTORS
|
||||
|
||||
/*
|
||||
* This section is used only if NO_DYNAMIC_EXCEPTION_VECTOR_INSTALL
|
||||
* is defined in vectors/vectors.S
|
||||
*/
|
||||
.vectors :
|
||||
{
|
||||
*(.vectors)
|
||||
} > VECTORS
|
||||
|
||||
/* 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
|
||||
.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) } > CODE
|
||||
.rela.plt : { *(.rela.plt) } > CODE
|
||||
.rela.sdata : { *(.rela.sdata) } > CODE
|
||||
.rela.sbss : { *(.rela.sbss) } > CODE
|
||||
.rela.sdata2 : { *(.rela.sdata2) } > CODE
|
||||
.rela.sbss2 : { *(.rela.sbss2) } > CODE
|
||||
|
||||
.init : { KEEP(*(.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 = .; KEEP(*(.fini)) } > CODE
|
||||
|
||||
.rodata : { *(.rodata*) *(.gnu.linkonce.r*) } > CODE
|
||||
.rodata1 : { *(.rodata1) } > CODE
|
||||
|
||||
/* Adjust the address for the data segment. We want to adjust up to
|
||||
the same address within the page on the next page up. */
|
||||
. = ALIGN(0x10000) + (. & (0x10000 - 1));
|
||||
/* Ensure the __preinit_array_start label is properly aligned. We
|
||||
could instead move the label definition inside the section, but
|
||||
the linker would then create the section even if it turns out to
|
||||
be empty, which isn't pretty. */
|
||||
. = ALIGN(32 / 8);
|
||||
PROVIDE (__preinit_array_start = .);
|
||||
.preinit_array : { *(.preinit_array) } >CODE
|
||||
PROVIDE (__preinit_array_end = .);
|
||||
PROVIDE (__init_array_start = .);
|
||||
.init_array : { *(.init_array) } >CODE
|
||||
PROVIDE (__init_array_end = .);
|
||||
PROVIDE (__fini_array_start = .);
|
||||
.fini_array : { *(.fini_array) } >CODE
|
||||
PROVIDE (__fini_array_end = .);
|
||||
|
||||
_SDA2_BASE_ = __SDATA2_START__ + 0x8000;
|
||||
.sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >CODE
|
||||
.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
|
||||
/* avoid empty sdata2/sbss2 area -- __eabi would not set up r2
|
||||
* which may be important if run-time loading is used
|
||||
*/
|
||||
. += 1;
|
||||
} >CODE
|
||||
.eh_frame : { *.(eh_frame) } >CODE
|
||||
|
||||
/* NOTE: if the BSP uses page tables, the correctness of
|
||||
* '_etext' (and __DATA_START__) is CRUCIAL - otherwise,
|
||||
* an invalid mapping may result!!!
|
||||
*/
|
||||
_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). */
|
||||
. = ALIGN(0x1000);
|
||||
.data ALIGN(0x1000) :
|
||||
{
|
||||
/* NOTE: if the BSP uses page tables, the correctness of
|
||||
* '__DATA_START__' (and _etext) is CRUCIAL - otherwise,
|
||||
* an invalid mapping may result!!!
|
||||
*/
|
||||
PROVIDE(__DATA_START__ = ABSOLUTE(.) );
|
||||
*(.data .data.* .gnu.linkonce.d*)
|
||||
SORT(CONSTRUCTORS)
|
||||
} > CODE
|
||||
.data1 : { *(.data1) } > CODE
|
||||
PROVIDE (__EXCEPT_START__ = .);
|
||||
.gcc_except_table : { *(.gcc_except_table) } > CODE
|
||||
PROVIDE (__EXCEPT_END__ = .);
|
||||
.got1 : { *(.got1) } > 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
|
||||
.dynamic : { *(.dynamic) } > CODE
|
||||
|
||||
.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))
|
||||
/* We don't want to include the .ctor section from
|
||||
from the crtend.o file until after the sorted ctors.
|
||||
The .ctor section from the crtend file contains the
|
||||
end of ctors marker and it must be last */
|
||||
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 (_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 = .);
|
||||
.sbss :
|
||||
{
|
||||
PROVIDE (__sbss_start = .);
|
||||
*(.dynsbss)
|
||||
*(.sbss .sbss.* .gnu.linkonce.sb.*)
|
||||
*(.scommon)
|
||||
/* avoid empty sdata/sbss area -- __eabi would not set up r13
|
||||
* which may be important if run-time loading is used
|
||||
*/
|
||||
. += 1;
|
||||
PROVIDE (__sbss_end = .);
|
||||
} > CODE
|
||||
.plt : { *(.plt) } > CODE
|
||||
.bss :
|
||||
{
|
||||
PROVIDE (__bss_start = .);
|
||||
*(.dynbss)
|
||||
*(.bss .bss.* .gnu.linkonce.b.*)
|
||||
*(COMMON)
|
||||
. = ALIGN(16);
|
||||
} > CODE
|
||||
. = 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 . */
|
||||
}
|
||||
Reference in New Issue
Block a user