diff options
author | Till Straumann <strauman@slac.stanford.edu> | 2009-12-03 16:56:50 +0000 |
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committer | Till Straumann <strauman@slac.stanford.edu> | 2009-12-03 16:56:50 +0000 |
commit | b7a6d23a0d8d855fe92d573658405e1eedc2356b (patch) | |
tree | 71efd676a12343e1268e25c9214f44312e8d554e /c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds | |
download | rtems-b7a6d23a0d8d855fe92d573658405e1eedc2356b.tar.bz2 |
- importing 'beatnik' BSP from SLAC repository.
Diffstat (limited to 'c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds')
-rw-r--r-- | c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds | 261 |
1 files changed, 261 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds b/c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds new file mode 100644 index 0000000000..a186b6dcae --- /dev/null +++ b/c/src/lib/libbsp/powerpc/beatnik/startup/linkcmds @@ -0,0 +1,261 @@ +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 { + BOTTOM : ORIGIN = 0x00, LENGTH = 0x80 + MAILBOX : ORIGIN = 0x80, LENGTH = 0x80 /* RESERVED */ + VECTORS : ORIGIN = 0x100 , LENGTH = 0x3000 - 0x100 + CODE : ORIGIN = 0x3000 , LENGTH = 32M-0x3000 +} +SECTIONS +{ + /* discard the 'shared/vector.S' entry point section */ + /DISCARD/ : + { + *(.entry_point_section) + } + + + .vectors : + { + /* should be the first thing... */ + *(.ppc_preloader_section) + + /* + * This section is used only if NO_DYNAMIC_EXCEPTION_VECTOR_INSTALL + * is defined in vectors/vectors.S + * *(.vectors) + * We actually RELY on dynamic vector installation since we need + * this space for the preloader... + */ + } > VECTORS + + + /* START OF THE LOADED IMAGE (parts moved by the preloader) */ + .image_start : + { + __rtems_start = ABSOLUTE(.); + } > 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 + .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 : { *(.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.*) + /* avoid empty sdata2/sbss2 area because __eabi wouldn't set up r2 + * (IMPORTANT if run-time loading is involved) + */ + . += 1 ; + 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) + *(.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) *(.sbss.*) *(.gnu.linkonce.sb.*) + *(.scommon) + *(.dynsbss) + /* avoid empty sdata/sbss area because __eabi wouldn't set up r13 + * (IMPORTANT if run-time loading is involved) + */ + . += 1 ; + PROVIDE (__sbss_end = ABSOLUTE(.)); + } > CODE + .plt : { *(.plt) } > CODE + .bss : + { + PROVIDE (__bss_start = ABSOLUTE(.)); + *(.dynbss) + *(.bss*) *(.gnu.linkonce.b.*) + *(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 . */ +} |