forked from Imagelibrary/rtems
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
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## shared/startup
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## shared/startup
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EXTRA_DIST += shared/startup/bspstart.c shared/startup/pgtbl_setup.c \
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EXTRA_DIST += shared/startup/bspstart.c shared/startup/pgtbl_setup.c \
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shared/startup/pgtbl_activate.c
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shared/startup/pgtbl_activate.c shared/startup/linkcmds
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## shared/tod
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## shared/tod
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EXTRA_DIST += shared/tod/todcfg.c
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EXTRA_DIST += shared/tod/todcfg.c
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@@ -37,7 +37,7 @@ rtems_crti.$(OBJEXT): ../../powerpc/shared/start/rtems_crti.S
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$(CPPASCOMPILE) -DASM -o $@ -c $<
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$(CPPASCOMPILE) -DASM -o $@ -c $<
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project_lib_DATA += rtems_crti.$(OBJEXT)
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project_lib_DATA += rtems_crti.$(OBJEXT)
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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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noinst_PROGRAMS += startup.rel
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noinst_PROGRAMS += startup.rel
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startup_rel_SOURCES = ../../powerpc/shared/startup/bspstart.c \
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startup_rel_SOURCES = ../../powerpc/shared/startup/bspstart.c \
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@@ -214,7 +214,7 @@ $(PROJECT_LIB)/rtems_crti.$(OBJEXT): rtems_crti.$(OBJEXT) $(PROJECT_LIB)/$(dirst
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$(INSTALL_DATA) $< $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
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$(INSTALL_DATA) $< $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
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TMPINSTALL_FILES += $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
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TMPINSTALL_FILES += $(PROJECT_LIB)/rtems_crti.$(OBJEXT)
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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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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 @@
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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)
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/* Do we need any of these for elf?
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__DYNAMIC = 0; */
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PROVIDE (__stack = 0);
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MEMORY {
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VECTORS : ORIGIN = 0x0 , LENGTH = 0x3000
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CODE : ORIGIN = 0x3000 , LENGTH = 0x400000
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}
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SECTIONS
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{
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.entry_point_section :
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{
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*(.entry_point_section)
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} > VECTORS
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/*
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* This section is used only if NO_DYNAMIC_EXCEPTION_VECTOR_INSTALL
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* is defined in vectors/vectors.S
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*/
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.vectors :
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{
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*(.vectors)
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} > VECTORS
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/* Read-only sections, merged into text segment: */
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.interp : { *(.interp) } > CODE
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.hash : { *(.hash) } > CODE
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.dynsym : { *(.dynsym) } > CODE
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.dynstr : { *(.dynstr) } > CODE
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.gnu.version : { *(.gnu.version) } > CODE
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.gnu.version_d : { *(.gnu.version_d) } > CODE
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.gnu.version_r : { *(.gnu.version_r) } > CODE
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.rela.text :
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{ *(.rela.text) *(.rela.gnu.linkonce.t*) } > CODE
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.rela.data :
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{ *(.rela.data) *(.rela.gnu.linkonce.d*) } > CODE
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.rela.rodata :
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{ *(.rela.rodata*) *(.rela.gnu.linkonce.r*) } > CODE
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.rela.got : { *(.rela.got) } > CODE
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.rela.got1 : { *(.rela.got1) } > CODE
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.rela.got2 : { *(.rela.got2) } > CODE
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.rela.ctors : { *(.rela.ctors) } > CODE
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.rela.dtors : { *(.rela.dtors) } > CODE
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.rela.init : { *(.rela.init) } > CODE
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.rela.fini : { *(.rela.fini) } > CODE
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.rela.bss : { *(.rela.bss) } > CODE
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.rela.plt : { *(.rela.plt) } > CODE
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.rela.sdata : { *(.rela.sdata) } > CODE
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.rela.sbss : { *(.rela.sbss) } > CODE
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.rela.sdata2 : { *(.rela.sdata2) } > CODE
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.rela.sbss2 : { *(.rela.sbss2) } > CODE
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.init : { KEEP(*(.init)) } > CODE
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.text :
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{
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*(.text)
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/*
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* Special FreeBSD sysctl sections.
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*/
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. = ALIGN (16);
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__start_set_sysctl_set = .;
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*(set_sysctl_*);
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__stop_set_sysctl_set = ABSOLUTE(.);
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*(set_domain_*);
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*(set_pseudo_*);
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/* .gnu.warning sections are handled specially by elf32.em. */
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*(.gnu.warning)
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*(.gnu.linkonce.t*)
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} > CODE
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.fini : { _fini = .; KEEP(*(.fini)) } > CODE
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.rodata : { *(.rodata*) *(.gnu.linkonce.r*) } > CODE
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.rodata1 : { *(.rodata1) } > CODE
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/* Adjust the address for the data segment. We want to adjust up to
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the same address within the page on the next page up. */
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. = ALIGN(0x10000) + (. & (0x10000 - 1));
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/* Ensure the __preinit_array_start label is properly aligned. We
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could instead move the label definition inside the section, but
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the linker would then create the section even if it turns out to
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be empty, which isn't pretty. */
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. = ALIGN(32 / 8);
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PROVIDE (__preinit_array_start = .);
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.preinit_array : { *(.preinit_array) } >CODE
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PROVIDE (__preinit_array_end = .);
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PROVIDE (__init_array_start = .);
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.init_array : { *(.init_array) } >CODE
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PROVIDE (__init_array_end = .);
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PROVIDE (__fini_array_start = .);
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.fini_array : { *(.fini_array) } >CODE
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PROVIDE (__fini_array_end = .);
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_SDA2_BASE_ = __SDATA2_START__ + 0x8000;
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.sdata2 : { *(.sdata2 .sdata2.* .gnu.linkonce.s2.*) } >CODE
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.sbss2 : { *(.sbss2 .sbss2.* .gnu.linkonce.sb2.*)
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/* avoid empty sdata2/sbss2 area -- __eabi would not set up r2
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* which may be important if run-time loading is used
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*/
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. += 1;
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} >CODE
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.eh_frame : { *.(eh_frame) } >CODE
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/* NOTE: if the BSP uses page tables, the correctness of
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* '_etext' (and __DATA_START__) is CRUCIAL - otherwise,
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* an invalid mapping may result!!!
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*/
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_etext = .;
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PROVIDE (etext = .);
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/* Adjust the address for the data segment. We want to adjust up to
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the same address within the page on the next page up. It would
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be more correct to do this:
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. = ALIGN(0x40000) + (ALIGN(8) & (0x40000 - 1));
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The current expression does not correctly handle the case of a
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text segment ending precisely at the end of a page; it causes the
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data segment to skip a page. The above expression does not have
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this problem, but it will currently (2/95) cause BFD to allocate
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a single segment, combining both text and data, for this case.
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This will prevent the text segment from being shared among
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multiple executions of the program; I think that is more
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important than losing a page of the virtual address space (note
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that no actual memory is lost; the page which is skipped can not
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be referenced). */
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. = ALIGN(0x1000);
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.data ALIGN(0x1000) :
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{
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/* NOTE: if the BSP uses page tables, the correctness of
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* '__DATA_START__' (and _etext) is CRUCIAL - otherwise,
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* an invalid mapping may result!!!
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*/
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PROVIDE(__DATA_START__ = ABSOLUTE(.) );
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*(.data .data.* .gnu.linkonce.d*)
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SORT(CONSTRUCTORS)
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} > CODE
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.data1 : { *(.data1) } > CODE
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PROVIDE (__EXCEPT_START__ = .);
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.gcc_except_table : { *(.gcc_except_table) } > CODE
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PROVIDE (__EXCEPT_END__ = .);
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.got1 : { *(.got1) } > CODE
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/* Put .ctors and .dtors next to the .got2 section, so that the pointers
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get relocated with -mrelocatable. Also put in the .fixup pointers.
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The current compiler no longer needs this, but keep it around for 2.7.2 */
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PROVIDE (_GOT2_START_ = .);
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.got2 : { *(.got2) } > CODE
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.dynamic : { *(.dynamic) } > CODE
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.ctors :
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{
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/* gcc uses crtbegin.o to find the start of
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the constructors, so we make sure it is
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first. Because this is a wildcard, it
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doesn't matter if the user does not
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actually link against crtbegin.o; the
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linker won't look for a file to match a
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wildcard. The wildcard also means that it
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doesn't matter which directory crtbegin.o
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is in. */
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KEEP (*crtbegin.o(.ctors))
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/* We don't want to include the .ctor section from
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from the crtend.o file until after the sorted ctors.
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The .ctor section from the crtend file contains the
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end of ctors marker and it must be last */
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*(.ctors))
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} > CODE
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.dtors :
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{
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o ) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*(.dtors))
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} > CODE
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PROVIDE (_FIXUP_START_ = .);
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.fixup : { *(.fixup) } > CODE
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PROVIDE (_FIXUP_END_ = .);
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PROVIDE (_GOT2_END_ = .);
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PROVIDE (_GOT_START_ = .);
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.got : { *(.got) } > CODE
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.got.plt : { *(.got.plt) } > CODE
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PROVIDE (_GOT_END_ = .);
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.jcr : { KEEP (*(.jcr)) } > CODE
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/* We want the small data sections together, so single-instruction offsets
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can access them all, and initialized data all before uninitialized, so
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we can shorten the on-disk segment size. */
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_SDA_BASE_ = __SDATA_START__ + 0x8000;
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.sdata : { *(.sdata) *(.gnu.linkonce.s.*) } >CODE
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_edata = .;
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PROVIDE (edata = .);
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.sbss :
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{
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PROVIDE (__sbss_start = .);
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*(.dynsbss)
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*(.sbss .sbss.* .gnu.linkonce.sb.*)
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*(.scommon)
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/* avoid empty sdata/sbss area -- __eabi would not set up r13
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* which may be important if run-time loading is used
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*/
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. += 1;
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PROVIDE (__sbss_end = .);
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} > CODE
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.plt : { *(.plt) } > CODE
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.bss :
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{
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PROVIDE (__bss_start = .);
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*(.dynbss)
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*(.bss .bss.* .gnu.linkonce.b.*)
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*(COMMON)
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. = ALIGN(16);
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} > CODE
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. = ALIGN(16);
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_end = . ;
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__rtems_end = . ;
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PROVIDE (end = .);
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/DISCARD/ :
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{
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*(.comment)
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}
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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/* These must appear regardless of . */
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}
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