Files
kernel-tenderloin-3.0/arch/ia64/kernel/vmlinux.lds.S
Nelson Elhage 6ae8635085 [IA64] Clean up linker script using standard macros.
Aside from using fewer output sections and moving some data around,
the main side effect of this change is changing the alignment of some
sections. In particular:

* cachline-aligned and read_mostly data are now aligned to
  SMP_CACHE_BYTES. (Previously, they were laid out consecutively after
  a PAGE_SIZE alignment)
* .init.ramfs is now page-aligned, per the INIT_RAM_FS
  macro. (Previously it had no explicit alignment).

Signed-off-by: Nelson Elhage <nelhage@ksplice.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-09-15 09:52:33 -07:00

236 lines
5.1 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*)
}
.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(16)
/* 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_SECTION(PAGE_SIZE)
INIT_DATA_SECTION(16)
.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_PARAVIRT)
. = ALIGN(16);
.paravirt_bundles : AT(ADDR(.paravirt_bundles) - LOAD_OFFSET)
{
__start_paravirt_bundles = .;
*(.paravirt_bundles)
__stop_paravirt_bundles = .;
}
. = ALIGN(16);
.paravirt_insts : AT(ADDR(.paravirt_insts) - LOAD_OFFSET)
{
__start_paravirt_insts = .;
*(.paravirt_insts)
__stop_paravirt_insts = .;
}
. = ALIGN(16);
.paravirt_branches : AT(ADDR(.paravirt_branches) - LOAD_OFFSET)
{
__start_paravirt_branches = .;
*(.paravirt_branches)
__stop_paravirt_branches = .;
}
#endif
#if defined(CONFIG_IA64_GENERIC)
/* Machine Vector */
. = ALIGN(16);
.machvec : AT(ADDR(.machvec) - LOAD_OFFSET)
{
machvec_start = .;
*(.machvec)
machvec_end = .;
}
#endif
. = ALIGN(PAGE_SIZE);
__init_end = .;
.data.page_aligned : AT(ADDR(.data.page_aligned) - LOAD_OFFSET)
{
PAGE_ALIGNED_DATA(PAGE_SIZE)
. = ALIGN(PAGE_SIZE);
__start_gate_section = .;
*(.data.gate)
__stop_gate_section = .;
#ifdef CONFIG_XEN
. = ALIGN(PAGE_SIZE);
__xen_start_gate_section = .;
*(.data.gate.xen)
__xen_stop_gate_section = .;
#endif
}
. = ALIGN(PAGE_SIZE); /* make sure the gate page doesn't expose
* kernel data
*/
/* Per-cpu data: */
. = ALIGN(PERCPU_PAGE_SIZE);
PERCPU_VADDR(PERCPU_ADDR, :percpu)
__phys_per_cpu_start = __per_cpu_load;
. = __phys_per_cpu_start + PERCPU_PAGE_SIZE; /* ensure percpu data fits
* into percpu page size
*/
data : { } :data
.data : AT(ADDR(.data) - LOAD_OFFSET)
{
#ifdef CONFIG_SMP
. = ALIGN(PERCPU_PAGE_SIZE);
__cpu0_per_cpu = .;
. = . + PERCPU_PAGE_SIZE; /* cpu0 per-cpu space */
#endif
INIT_TASK_DATA(PAGE_SIZE)
CACHELINE_ALIGNED_DATA(SMP_CACHE_BYTES)
READ_MOSTLY_DATA(SMP_CACHE_BYTES)
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_SECTION(0, 0, 0)
_end = .;
code : { } :code
STABS_DEBUG
DWARF_DEBUG
/DISCARD/ : { *(.note) }
}