65 lines
1.4 KiB
Plaintext
65 lines
1.4 KiB
Plaintext
|
/* Simple linker script for the JOS kernel.
|
||
|
See the GNU ld 'info' manual ("info ld") to learn the syntax. */
|
||
|
|
||
|
OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
|
||
|
OUTPUT_ARCH(i386)
|
||
|
ENTRY(_start)
|
||
|
|
||
|
SECTIONS
|
||
|
{
|
||
|
/* Link the kernel at this address: "." means the current address */
|
||
|
/* Must be equal to KERNLINK */
|
||
|
. = 0x80100000;
|
||
|
|
||
|
.text : AT(0x100000) {
|
||
|
*(.text .stub .text.* .gnu.linkonce.t.*)
|
||
|
}
|
||
|
|
||
|
PROVIDE(etext = .); /* Define the 'etext' symbol to this value */
|
||
|
|
||
|
.rodata : {
|
||
|
*(.rodata .rodata.* .gnu.linkonce.r.*)
|
||
|
}
|
||
|
|
||
|
/* Include debugging information in kernel memory */
|
||
|
.stab : {
|
||
|
PROVIDE(__STAB_BEGIN__ = .);
|
||
|
*(.stab);
|
||
|
PROVIDE(__STAB_END__ = .);
|
||
|
}
|
||
|
|
||
|
.stabstr : {
|
||
|
PROVIDE(__STABSTR_BEGIN__ = .);
|
||
|
*(.stabstr);
|
||
|
PROVIDE(__STABSTR_END__ = .);
|
||
|
}
|
||
|
|
||
|
/* Adjust the address for the data segment to the next page */
|
||
|
. = ALIGN(0x1000);
|
||
|
|
||
|
/* Conventionally, Unix linkers provide pseudo-symbols
|
||
|
* etext, edata, and end, at the end of the text, data, and bss.
|
||
|
* For the kernel mapping, we need the address at the beginning
|
||
|
* of the data section, but that's not one of the conventional
|
||
|
* symbols, because the convention started before there was a
|
||
|
* read-only rodata section between text and data. */
|
||
|
PROVIDE(data = .);
|
||
|
|
||
|
/* The data segment */
|
||
|
.data : {
|
||
|
*(.data)
|
||
|
}
|
||
|
|
||
|
PROVIDE(edata = .);
|
||
|
|
||
|
.bss : {
|
||
|
*(.bss)
|
||
|
}
|
||
|
|
||
|
PROVIDE(end = .);
|
||
|
|
||
|
/DISCARD/ : {
|
||
|
*(.eh_frame .note.GNU-stack)
|
||
|
}
|
||
|
}
|