kernel-ark/arch/alpha/kernel/vmlinux.lds.S
Bastian Blank 51597acfd3 Alpha Linux kernel fails with inconsistent kallsyms data
The build of the Alpha Linux kernel currently fails[1] with inconsistent
kallsyms data.  As I never saw that before, I thought about hardware
problems.  But in fact it is a bug in the Linux kernel.

The end of the rodata section is marked with the "__end_rodata" symbol.
This symbol have different aligning constraints than the inittext parts
and therefor the start marked "_sinittext".  Because of that the
__end_rodata symbol shifts between < _sinittext and == _sinittext.  The
later variant is seen as a code symbol and recorded in the kallsyms data.

On fix would be to move the exception table a little bit and get some
space between that two areas.

[1]: http://buildd.debian.org/fetch.cgi?pkg=linux-2.6&arch=alpha&ver=2.6.25-5&stamp=1213919009&file=log&as=raw

Cc: maximilian attems <max@stro.at>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-04 10:40:09 -07:00

154 lines
2.1 KiB
ArmAsm

#include <asm-generic/vmlinux.lds.h>
#include <asm/page.h>
OUTPUT_FORMAT("elf64-alpha")
OUTPUT_ARCH(alpha)
ENTRY(__start)
PHDRS { kernel PT_LOAD; note PT_NOTE; }
jiffies = jiffies_64;
SECTIONS
{
#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
. = 0xfffffc0000310000;
#else
. = 0xfffffc0001010000;
#endif
_text = .; /* Text and read-only data */
.text : {
*(.text.head)
TEXT_TEXT
SCHED_TEXT
LOCK_TEXT
*(.fixup)
*(.gnu.warning)
} :kernel
_etext = .; /* End of text section */
NOTES :kernel :note
.dummy : {
*(.dummy)
} :kernel
RODATA
/* Exception table */
. = ALIGN(16);
__ex_table : {
__start___ex_table = .;
*(__ex_table)
__stop___ex_table = .;
}
/* Will be freed after init */
. = ALIGN(PAGE_SIZE);
/* Init code and data */
__init_begin = .;
.init.text : {
_sinittext = .;
INIT_TEXT
_einittext = .;
}
.init.data : {
INIT_DATA
}
. = ALIGN(16);
.init.setup : {
__setup_start = .;
*(.init.setup)
__setup_end = .;
}
. = ALIGN(8);
.initcall.init : {
__initcall_start = .;
INITCALLS
__initcall_end = .;
}
#ifdef CONFIG_BLK_DEV_INITRD
. = ALIGN(PAGE_SIZE);
.init.ramfs : {
__initramfs_start = .;
*(.init.ramfs)
__initramfs_end = .;
}
#endif
. = ALIGN(8);
.con_initcall.init : {
__con_initcall_start = .;
*(.con_initcall.init)
__con_initcall_end = .;
}
. = ALIGN(8);
SECURITY_INIT
PERCPU(PAGE_SIZE)
. = ALIGN(2 * PAGE_SIZE);
__init_end = .;
/* Freed after init ends here */
/* Note 2 page alignment above. */
.data.init_thread : {
*(.data.init_thread)
}
. = ALIGN(PAGE_SIZE);
.data.page_aligned : {
*(.data.page_aligned)
}
. = ALIGN(64);
.data.cacheline_aligned : {
*(.data.cacheline_aligned)
}
_data = .;
/* Data */
.data : {
DATA_DATA
CONSTRUCTORS
}
.got : {
*(.got)
}
.sdata : {
*(.sdata)
}
_edata = .; /* End of data section */
__bss_start = .;
.sbss : {
*(.sbss)
*(.scommon)
}
.bss : {
*(.bss)
*(COMMON)
}
__bss_stop = .;
_end = .;
/* Sections to be discarded */
/DISCARD/ : {
EXIT_TEXT
EXIT_DATA
*(.exitcall.exit)
}
.mdebug 0 : {
*(.mdebug)
}
.note 0 : {
*(.note)
}
STABS_DEBUG
DWARF_DEBUG
}