forked from Imagelibrary/rtems
281 lines
6.6 KiB
Plaintext
281 lines
6.6 KiB
Plaintext
/*
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* This file contains directives for the GNU linker that are specific
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* to the MBX860-2 board.
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*
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* $Id$
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*/
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OUTPUT_FORMAT("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
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OUTPUT_ARCH(powerpc)
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ENTRY(start)
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/*
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* Declare some sizes.
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* XXX: The assignment of ". += XyzSize;" fails in older gld's if the
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* number used there is not constant. If this happens to you, edit
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* the lines marked XXX below to use a constant value.
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*/
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HeapSize = DEFINED(HeapSize) ? HeapSize : 0x100000; /* 1M Heap */
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StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
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MEMORY
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{
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ram : org = 0x0, l = 4M
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nvram : org = 0xfa000000, l = 32K
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dpram : org = 0xfa200000, l = 16K
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flash : org = 0xfc000000, l = 2M
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immr : org = 0xfa200000, l = 16K
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}
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SECTIONS
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{
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/*
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* If the vectors are specified statically rather than created at run time,
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* accumulate them starting at VMA 0x0.
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*/
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.vectors :
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{
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*(.vectors)
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} >ram
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/*
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* The stack will live in this area - between the vectors and
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* the text section.
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*/
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.text 0x10000:
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{
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/* Read-only sections, merged into text segment: */
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text.start = .;
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/* Entry point is the .entry section */
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*(.entry)
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*(.entry2)
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/* Actual code */
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*(.text*)
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/* C++ constructors/destructors */
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*(.gnu.linkonce.t*)
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/* Initialization and finalization code.
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*
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* Various files can provide initialization and finalization functions.
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* The bodies of these functions are in .init and .fini sections. We
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* accumulate the bodies here, and prepend function prologues from
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* ecrti.o and function epilogues from ecrtn.o. ecrti.o must be linked
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* first; ecrtn.o must be linked last. Because these are wildcards, it
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* doesn't matter if the user does not actually link against ecrti.o and
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* ecrtn.o; the linker won't look for a file to match a wildcard. The
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* wildcard also means that it doesn't matter which directory ecrti.o
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* and ecrtn.o are in.
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*/
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PROVIDE (_init = .);
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*ecrti.o(.init)
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*(.init)
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*ecrtn.o(.init)
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PROVIDE (_fini = .);
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*ecrti.o(.fini)
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*(.fini)
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*ecrtn.o(.init)
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/*
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* C++ constructors and destructors for static objects.
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* PowerPC EABI does not use crtstuff yet, so we build "old-style"
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* constructor and destructor lists that begin with the list lenght
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* end terminate with a NULL entry.
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*/
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PROVIDE (__CTOR_LIST__ = .);
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/* LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) */
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*crtbegin.o(.ctors)
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*(.ctors)
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*crtend.o(.ctors)
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LONG(0)
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PROVIDE (__CTOR_END__ = .);
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PROVIDE (__DTOR_LIST__ = .);
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/* LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) */
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*crtbegin.o(.dtors)
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*(.dtors)
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*crtend.o(.dtors)
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LONG(0)
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PROVIDE (__DTOR_END__ = .);
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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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/* Exception frame info */
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*(.eh_frame)
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/* Miscellaneous read-only data */
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_rodata_start = . ;
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*(.gnu.linkonce.r*)
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*(.lit)
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*(.shdata)
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*(.rodata*)
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*(.rodata1)
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*.(eh_frame)
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*(.descriptors)
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*(rom_ver)
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_erodata = .;
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/* Various possible names for the end of the .text section */
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etext = ALIGN(0x10);
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_etext = .;
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_endtext = .;
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text.end = .;
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PROVIDE (etext = .);
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PROVIDE (__etext = .);
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} > ram
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/* R/W Data */
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.data :
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{
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data_start = .;
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*(.data)
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*(.data.*)
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*(.data1)
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PROVIDE (__SDATA_START__ = .);
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*(.sdata*)
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*(.gnu.linkonce.d*)
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*(.gnu.linkonce.s.*)
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PROVIDE (__SDATA_END__ = .);
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PROVIDE (__EXCEPT_START__ = .);
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*(.gcc_except_table)
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PROVIDE (__EXCEPT_END__ = .);
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PROVIDE(__GOT_START__ = .);
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*(.got.plt)
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*(.got)
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PROVIDE(__GOT_END__ = .);
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*(.got1)
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PROVIDE (__GOT2_START__ = .);
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PROVIDE (_GOT2_START_ = .);
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*(.got2)
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PROVIDE (__GOT2_END__ = .);
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PROVIDE (_GOT2_END_ = .);
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PROVIDE (__FIXUP_START__ = .);
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PROVIDE (_FIXUP_START_ = .);
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*(.fixup)
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PROVIDE (_FIXUP_END_ = .);
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PROVIDE (__FIXUP_END__ = .);
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/* We want the small data sections together, so single-instruction offsets
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* can access them all.
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*/
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PROVIDE (__SDATA2_START__ = .);
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*(.sdata2)
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*(.gnu.linkonce.s2.*)
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*(.sbss2)
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PROVIDE (__SDATA2_END__ = .);
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} > ram
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.bss :
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{
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PROVIDE (__SBSS_START__ = .);
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PROVIDE (__SBSS2_START__ = .);
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*(.sbss2)
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PROVIDE (__SBSS2_END__ = .);
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bss.start = .;
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*(.bss*)
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*(.sbss*)
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*(COMMON)
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. = ALIGN(4);
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bss.end = .;
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PROVIDE (__SBSS_END__ = .);
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} > ram
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bss.size = bss.end - bss.start;
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text.size = text.end - text.start;
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PROVIDE(_end = bss.end);
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/*
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* Interrupt stack setup
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*/
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IntrStack_start = ALIGN(0x10);
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. += 0x4000;
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intrStack = .;
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PROVIDE(intrStackPtr = intrStack);
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_HeapStart = .;
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__HeapStart = .;
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. += HeapSize; /* XXX -- Old gld can't handle this */
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/* . += 0x80000; */ /* HeapSize for old gld */
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_HeapEnd = .;
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__HeapEnd = .;
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clear_end = .;
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_WorkspaceBase = .;
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__WorkspaceBase = .;
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dpram :
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{
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m8xx = .;
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_m8xx = .;
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. += (16 * 1024);
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} >immr
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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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