Commit c7725687 authored by Russell King's avatar Russell King
Browse files

ARM: add additional table to compressed kernel



Add an additional extendable table to the compressed kernel so that we
can provide further information to boot loaders regarding the properties
of the image contained within.

This is necessary for correct behaviour of kexec.
Tested-by: default avatarTony Lindgren <tony@atomide.com>
Tested-by: default avatarKeerthy <j-keerthy@ti.com>
Signed-off-by: default avatarRussell King <rmk+kernel@armlinux.org.uk>
parent 429f7a06
......@@ -143,6 +143,8 @@ start:
.word _magic_start @ absolute load/run zImage address
.word _magic_end @ zImage end address
.word 0x04030201 @ endianness flag
.word 0x45454545 @ another magic number to indicate
.word _magic_table @ additional data table
__EFI_HEADER
1:
......
......@@ -44,12 +44,22 @@ SECTIONS
*(.glue_7t)
*(.glue_7)
}
.table : ALIGN(4) {
_table_start = .;
LONG(ZIMAGE_MAGIC(2))
LONG(ZIMAGE_MAGIC(0x5a534c4b))
LONG(ZIMAGE_MAGIC(__piggy_size_addr - _start))
LONG(ZIMAGE_MAGIC(_kernel_bss_size))
LONG(0)
_table_end = .;
}
.rodata : {
*(.rodata)
*(.rodata.*)
}
.piggydata : {
*(.piggydata)
__piggy_size_addr = . - 4;
}
. = ALIGN(4);
......@@ -88,6 +98,7 @@ SECTIONS
_magic_sig = ZIMAGE_MAGIC(0x016f2818);
_magic_start = ZIMAGE_MAGIC(_start);
_magic_end = ZIMAGE_MAGIC(_edata);
_magic_table = ZIMAGE_MAGIC(_table_start - _start);
. = BSS_START;
__bss_start = .;
......
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