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|
/* Linker script for running ELF programs in the Sparc simulator */
/* OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparcle") */
/* OUTPUT_FORMAT("elf32-sparc") */
OUTPUT_ARCH(sparc)
STARTUP(traps.o)
INPUT(erc32-crt0.o)
ENTRY(_trap_table)
GROUP(-lc -lerc32 -lgcc) /* -lerc32 used to be -lsim */
SEARCH_DIR(.)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
/*
* The memory map looks like this:
* +--------------------+ <- low memory
* | .text |
* | _stext |
* | _etext |
* | ctor list | the ctor and dtor lists are for
* | dtor list | C++ support
* | _end_text |
* +--------------------+
* | .data | initialized data goes here
* | _sdata |
* | _edata |
* +--------------------+
* | .bss |
* | __bss_start | start of bss, cleared by crt0
* | _end | start of heap, used by sbrk()
* +--------------------+
* | heap space |
* | _ENDHEAP |
* | stack space |
* | __stack | top of stack
* +--------------------+ <- high memory
*/
/*
* User modifiable values:
*
* _CLOCK_SPEED in Mhz (used to program the counter/timers)
*
* _PROM_SIZE size of PROM (permissible values are 4K, 8K, 16K
* 32K, 64K, 128K, 256K, and 512K)
* _RAM_SIZE size of RAM (permissible values are 256K, 512K,
* 1MB, 2Mb, 4Mb, 8Mb, 16Mb, and 32Mb)
*
* These symbols are only used in assembler code, so they only need to
* be listed once. They should always be refered to without SYM().
*/
_CLOCK_SPEED = 10;
_PROM_SIZE = 4M;
_RAM_SIZE = 256K;
_RAM_START = 0x02000000;
_RAM_END = _RAM_START + _RAM_SIZE;
_STACK_SIZE = (16 * 1024);
_PROM_START = 0x00000000;
_PROM_END = _PROM_START + _PROM_SIZE;
/*
* Base address of the on-CPU peripherals
*/
_ERC32_MEC = 0x01f80000;
/*
* Setup the memory map for the SIS simulator.
* stack grows up towards low memory.
*/
MEMORY
{
rom : ORIGIN = 0x00000000, LENGTH = 4M
ram (rwx) : ORIGIN = 0x02000000, LENGTH = 2M
}
__stack = _RAM_START + _RAM_SIZE - 4 * 16;
__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
/*
* All the symbols that might be accessed from C code need to be
* listed twice, once with an additional underscore. aout format needs
* and extra underscore, whereas coff & elf doesn't. This is to work
* with both.
*/
SECTIONS
{
.text :
{
_stext = .;
PROVIDE (stext = .);
*(.text)
_etext = .;
PROVIDE (etext = .);
/* For a.out. */
CONSTRUCTORS
/* For ELF. */
__CTOR_LIST__ = .;
LONG(-1)
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*crtend.o(.ctors))
LONG(0)
__CTOR_END__ = .;
__DTOR_LIST__ = .;
LONG(-1)
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*crtend.o(.dtors))
LONG(0)
__DTOR_END__ = .;
*(.init)
*(.lit)
*(.rodata)
*(.shdata)
__EH_FRAME_BEGIN__ = .;
*(.eh_frame)
*(.gnu.linkonce.t*)
*(.gnu.linkonce.r*)
*(.gcc_except_table)
*(.fini)
_endtext = .;
PROVIDE(endtext = .);
} > ram
.shbss SIZEOF(.text) + ADDR(.text) :
{
*(.shbss)
}
.talias : { } > ram
.data :
{
_sdata = .;
PROVIDE (sdata = .);
*(.data)
*(.data.*)
*(.gnu.linkonce.d*)
_edata = .;
PROVIDE (edata = .);
} > ram
.bss SIZEOF(.data) + ADDR(.data) :
{
_sbss = . ;
PROVIDE (sbss = . );
__bss_start = ALIGN(0x8);
*(.bss)
*(COMMON)
_ebss = .;
PROVIDE (ebss = .);
_end = ALIGN(0x8);
__end = ALIGN(0x8);
PROVIDE (end = ALIGN(0x8));
}
/* 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) }
.debug_ranges 0 : { *(.debug_ranges) }
/* 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 . */
}
|
