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newlib-cygwin/libgloss/mips/jmr3904app-java.ld
Faraz Shahbazker 277e3f4aa7 Make .data section placement coincide with _fdata symbol
The _fdata symbol in MIPS linker scripts is aligned to a 16-byte
boundary.  The ALIGN function does not implicitly update current
location counter.  If sections positioned after the assignment
do not have the same natural alignment as the ALIGN function then
the start of the section group will not coincide with the value
of the symbol.

Given the linker command sequence:
  symbol = ALIGN (NN);
  (.section*)
where the idiom implies a desire to mark the beginning of .section
with symbol, there must be an assignment to the location counter
between the assignment to symbol and the .section pattern.

libgloss/
	* mips/array.ld: Update the location counter to match _fdata.
	* mips/cfe.ld: Likewise.
	* mips/ddb-kseg0.ld: Likewise.
	* mips/ddb.ld: Likewise.
	* mips/dve.ld: Likewise.
	* mips/idt.ld: Likewise.
	* mips/idt32.ld: Likewise.
	* mips/idt64.ld: Likewise.
	* mips/idtecoff.ld: Likewise.
	* mips/jmr3904app-java.ld: Likewise.
	* mips/jmr3904app.ld: Likewise.
	* mips/jmr3904dram-java.ld: Likewise.
	* mips/jmr3904dram.ld: Likewise.
	* mips/lsi.ld: Likewise.
	* mips/mti32.ld: Likewise.
	* mips/mti64.ld: Likewise.
	* mips/mti64_64.ld: Likewise.
	* mips/mti64_n32.ld: Likewise.
	* mips/nullmon.ld: Likewise.
	* mips/pmon.ld: Likewise.
	* mips/sde32.ld: Likewise.
	* mips/sde64.ld: Likewise.
2020-10-14 10:53:53 -04:00

137 lines
3.2 KiB
Plaintext

/* Linker script forJMR 3904 board using Java + qthreads */
ENTRY(_start)
STARTUP(crt0.o)
OUTPUT_ARCH("mips:3000")
OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips", "elf32-littlemips")
GROUP(-lc -ljmr3904 -lgcc -lgcjcoop)
SEARCH_DIR(.)
__DYNAMIC = 0;
PROVIDE (_mem_size = 0x100000); /* JMR3904 comes as standard with 512k of RAM */
/* Set the size of the stack for Java with qthreads. */
PROVIDE (_Jv_QthreadsStackSize = 0x10000);
/* PROVIDE (__global = 0); */
/*
* Initalize some symbols to be zero so we can reference them in the
* crt0 without core dumping. These functions are all optional, but
* we do this so we can have our crt0 always use them if they exist.
* This is so BSPs work better when using the crt0 installed with gcc.
* We have to initalize them twice, so we multiple object file
* formats, as some prepend an underscore.
*/
PROVIDE (hardware_exit_hook = 0);
PROVIDE (hardware_hazard_hook = 0);
PROVIDE (hardware_init_hook = 0);
PROVIDE (software_init_hook = 0);
SECTIONS
{
. = 0x80008000;
/* This is NOT the address which fits with the monitor from jmr. */
/* It fits the Cygmon ROMS */
.text : {
_ftext = . ;
KEEP (*(.init))
eprol = .;
*(.text)
*(.text.*)
*(.gnu.linkonce.t.*)
*(.mips16.fn.*)
*(.mips16.call.*)
PROVIDE (__runtime_reloc_start = .);
*(.rel.sdata)
PROVIDE (__runtime_reloc_stop = .);
KEEP (*(.fini))
etext = .;
_etext = .;
}
. = .;
.rodata : {
*(.rdata)
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r.*)
}
_fdata = ALIGN(16);
. = _fdata;
.data : {
*(.data)
*(.data.*)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
}
. = ALIGN(8);
_gp = . + 0x8000;
__global = _gp;
.lit8 : {
*(.lit8)
}
.lit4 : {
*(.lit4)
}
.sdata : {
*(.sdata)
*(.sdata.*)
*(.gnu.linkonce.s.*)
}
. = ALIGN(4);
edata = .;
_edata = .;
_fbss = .;
.sbss : {
*(.sbss)
*(.sbss.*)
*(.gnu.linkonce.sb.*)
*(.scommon)
}
.bss : {
_bss_start = . ;
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
. += 0x2000 ; /* 8k bytes of stack. */
__stack = ALIGN(64) ;
. = __stack ;
}
end = .;
_end = .;
/* 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) }
}