8311d21c35
Move the LOAD_OFFSET definition from vmlinux.lds.S into system.h. On paravirtualized environments, it is necessary to detect the execution environment. One of the solutions is the multi entry point. The multi entry point allows a boot loader to start the kernel execution from the entry point which is different from the ELF entry point. The non standard entry point will defined as the specialized elf note which contains the LMA of the entry point symbol. The constant, LOAD_OFFSET, is necessary to calculate the symbol's LMA. Move the definition into the public header file to make it available to the multi entry point support. Cc: "He, Qing" <qing.he@intel.com> Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Tony Luck <tony.luck@intel.com>
295 lines
7.1 KiB
ArmAsm
295 lines
7.1 KiB
ArmAsm
|
|
#include <asm/cache.h>
|
|
#include <asm/ptrace.h>
|
|
#include <asm/system.h>
|
|
#include <asm/pgtable.h>
|
|
|
|
#include <asm-generic/vmlinux.lds.h>
|
|
|
|
#define IVT_TEXT \
|
|
VMLINUX_SYMBOL(__start_ivt_text) = .; \
|
|
*(.text.ivt) \
|
|
VMLINUX_SYMBOL(__end_ivt_text) = .;
|
|
|
|
OUTPUT_FORMAT("elf64-ia64-little")
|
|
OUTPUT_ARCH(ia64)
|
|
ENTRY(phys_start)
|
|
jiffies = jiffies_64;
|
|
PHDRS {
|
|
code PT_LOAD;
|
|
percpu PT_LOAD;
|
|
data PT_LOAD;
|
|
note PT_NOTE;
|
|
unwind 0x70000001; /* PT_IA_64_UNWIND, but ld doesn't match the name */
|
|
}
|
|
SECTIONS
|
|
{
|
|
/* Sections to be discarded */
|
|
/DISCARD/ : {
|
|
EXIT_TEXT
|
|
EXIT_DATA
|
|
*(.exitcall.exit)
|
|
*(.IA_64.unwind.exit.text)
|
|
*(.IA_64.unwind_info.exit.text)
|
|
}
|
|
|
|
v = PAGE_OFFSET; /* this symbol is here to make debugging easier... */
|
|
phys_start = _start - LOAD_OFFSET;
|
|
|
|
code : { } :code
|
|
. = KERNEL_START;
|
|
|
|
_text = .;
|
|
_stext = .;
|
|
|
|
.text : AT(ADDR(.text) - LOAD_OFFSET)
|
|
{
|
|
IVT_TEXT
|
|
TEXT_TEXT
|
|
SCHED_TEXT
|
|
LOCK_TEXT
|
|
KPROBES_TEXT
|
|
*(.gnu.linkonce.t*)
|
|
}
|
|
.text.head : AT(ADDR(.text.head) - LOAD_OFFSET)
|
|
{ *(.text.head) }
|
|
.text2 : AT(ADDR(.text2) - LOAD_OFFSET)
|
|
{ *(.text2) }
|
|
#ifdef CONFIG_SMP
|
|
.text.lock : AT(ADDR(.text.lock) - LOAD_OFFSET)
|
|
{ *(.text.lock) }
|
|
#endif
|
|
_etext = .;
|
|
|
|
/* Read-only data */
|
|
|
|
NOTES :code :note /* put .notes in text and mark in PT_NOTE */
|
|
code_continues : {} :code /* switch back to regular program... */
|
|
|
|
/* Exception table */
|
|
. = ALIGN(16);
|
|
__ex_table : AT(ADDR(__ex_table) - LOAD_OFFSET)
|
|
{
|
|
__start___ex_table = .;
|
|
*(__ex_table)
|
|
__stop___ex_table = .;
|
|
}
|
|
|
|
/* MCA table */
|
|
. = ALIGN(16);
|
|
__mca_table : AT(ADDR(__mca_table) - LOAD_OFFSET)
|
|
{
|
|
__start___mca_table = .;
|
|
*(__mca_table)
|
|
__stop___mca_table = .;
|
|
}
|
|
|
|
.data.patch.phys_stack_reg : AT(ADDR(.data.patch.phys_stack_reg) - LOAD_OFFSET)
|
|
{
|
|
__start___phys_stack_reg_patchlist = .;
|
|
*(.data.patch.phys_stack_reg)
|
|
__end___phys_stack_reg_patchlist = .;
|
|
}
|
|
|
|
/* Global data */
|
|
_data = .;
|
|
|
|
/* Unwind info & table: */
|
|
. = ALIGN(8);
|
|
.IA_64.unwind_info : AT(ADDR(.IA_64.unwind_info) - LOAD_OFFSET)
|
|
{ *(.IA_64.unwind_info*) }
|
|
.IA_64.unwind : AT(ADDR(.IA_64.unwind) - LOAD_OFFSET)
|
|
{
|
|
__start_unwind = .;
|
|
*(.IA_64.unwind*)
|
|
__end_unwind = .;
|
|
} :code :unwind
|
|
code_continues2 : {} : code
|
|
|
|
RODATA
|
|
|
|
.opd : AT(ADDR(.opd) - LOAD_OFFSET)
|
|
{ *(.opd) }
|
|
|
|
/* Initialization code and data: */
|
|
|
|
. = ALIGN(PAGE_SIZE);
|
|
__init_begin = .;
|
|
.init.text : AT(ADDR(.init.text) - LOAD_OFFSET)
|
|
{
|
|
_sinittext = .;
|
|
INIT_TEXT
|
|
_einittext = .;
|
|
}
|
|
|
|
.init.data : AT(ADDR(.init.data) - LOAD_OFFSET)
|
|
{ INIT_DATA }
|
|
|
|
#ifdef CONFIG_BLK_DEV_INITRD
|
|
.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET)
|
|
{
|
|
__initramfs_start = .;
|
|
*(.init.ramfs)
|
|
__initramfs_end = .;
|
|
}
|
|
#endif
|
|
|
|
. = ALIGN(16);
|
|
.init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET)
|
|
{
|
|
__setup_start = .;
|
|
*(.init.setup)
|
|
__setup_end = .;
|
|
}
|
|
.initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET)
|
|
{
|
|
__initcall_start = .;
|
|
INITCALLS
|
|
__initcall_end = .;
|
|
}
|
|
|
|
.data.patch.vtop : AT(ADDR(.data.patch.vtop) - LOAD_OFFSET)
|
|
{
|
|
__start___vtop_patchlist = .;
|
|
*(.data.patch.vtop)
|
|
__end___vtop_patchlist = .;
|
|
}
|
|
|
|
.data.patch.rse : AT(ADDR(.data.patch.rse) - LOAD_OFFSET)
|
|
{
|
|
__start___rse_patchlist = .;
|
|
*(.data.patch.rse)
|
|
__end___rse_patchlist = .;
|
|
}
|
|
|
|
.data.patch.mckinley_e9 : AT(ADDR(.data.patch.mckinley_e9) - LOAD_OFFSET)
|
|
{
|
|
__start___mckinley_e9_bundles = .;
|
|
*(.data.patch.mckinley_e9)
|
|
__end___mckinley_e9_bundles = .;
|
|
}
|
|
|
|
#if defined(CONFIG_IA64_GENERIC)
|
|
/* Machine Vector */
|
|
. = ALIGN(16);
|
|
.machvec : AT(ADDR(.machvec) - LOAD_OFFSET)
|
|
{
|
|
machvec_start = .;
|
|
*(.machvec)
|
|
machvec_end = .;
|
|
}
|
|
#endif
|
|
|
|
. = ALIGN(8);
|
|
__con_initcall_start = .;
|
|
.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET)
|
|
{ *(.con_initcall.init) }
|
|
__con_initcall_end = .;
|
|
__security_initcall_start = .;
|
|
.security_initcall.init : AT(ADDR(.security_initcall.init) - LOAD_OFFSET)
|
|
{ *(.security_initcall.init) }
|
|
__security_initcall_end = .;
|
|
. = ALIGN(PAGE_SIZE);
|
|
__init_end = .;
|
|
|
|
/* The initial task and kernel stack */
|
|
.data.init_task : AT(ADDR(.data.init_task) - LOAD_OFFSET)
|
|
{ *(.data.init_task) }
|
|
|
|
.data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET)
|
|
{ *(__special_page_section)
|
|
__start_gate_section = .;
|
|
*(.data.gate)
|
|
__stop_gate_section = .;
|
|
}
|
|
. = ALIGN(PAGE_SIZE); /* make sure the gate page doesn't expose
|
|
* kernel data
|
|
*/
|
|
|
|
.data.read_mostly : AT(ADDR(.data.read_mostly) - LOAD_OFFSET)
|
|
{ *(.data.read_mostly) }
|
|
|
|
.data.cacheline_aligned : AT(ADDR(.data.cacheline_aligned) - LOAD_OFFSET)
|
|
{ *(.data.cacheline_aligned) }
|
|
|
|
/* Per-cpu data: */
|
|
percpu : { } :percpu
|
|
. = ALIGN(PERCPU_PAGE_SIZE);
|
|
__phys_per_cpu_start = .;
|
|
.data.percpu PERCPU_ADDR : AT(__phys_per_cpu_start - LOAD_OFFSET)
|
|
{
|
|
__per_cpu_start = .;
|
|
*(.data.percpu)
|
|
*(.data.percpu.shared_aligned)
|
|
__per_cpu_end = .;
|
|
}
|
|
. = __phys_per_cpu_start + PERCPU_PAGE_SIZE; /* ensure percpu data fits
|
|
* into percpu page size
|
|
*/
|
|
|
|
data : { } :data
|
|
.data : AT(ADDR(.data) - LOAD_OFFSET)
|
|
{
|
|
DATA_DATA
|
|
*(.data1)
|
|
*(.gnu.linkonce.d*)
|
|
CONSTRUCTORS
|
|
}
|
|
|
|
. = ALIGN(16); /* gp must be 16-byte aligned for exc. table */
|
|
.got : AT(ADDR(.got) - LOAD_OFFSET)
|
|
{ *(.got.plt) *(.got) }
|
|
__gp = ADDR(.got) + 0x200000;
|
|
/* 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. */
|
|
.sdata : AT(ADDR(.sdata) - LOAD_OFFSET)
|
|
{ *(.sdata) *(.sdata1) *(.srdata) }
|
|
_edata = .;
|
|
__bss_start = .;
|
|
.sbss : AT(ADDR(.sbss) - LOAD_OFFSET)
|
|
{ *(.sbss) *(.scommon) }
|
|
.bss : AT(ADDR(.bss) - LOAD_OFFSET)
|
|
{ *(.bss) *(COMMON) }
|
|
__bss_stop = .;
|
|
|
|
_end = .;
|
|
|
|
code : { } :code
|
|
/* 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) }
|
|
/* 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 . */
|
|
/DISCARD/ : { *(.comment) }
|
|
/DISCARD/ : { *(.note) }
|
|
}
|