51597acfd3
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>
154 lines
2.1 KiB
ArmAsm
154 lines
2.1 KiB
ArmAsm
#include <asm-generic/vmlinux.lds.h>
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#include <asm/page.h>
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OUTPUT_FORMAT("elf64-alpha")
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OUTPUT_ARCH(alpha)
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ENTRY(__start)
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PHDRS { kernel PT_LOAD; note PT_NOTE; }
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jiffies = jiffies_64;
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SECTIONS
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{
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#ifdef CONFIG_ALPHA_LEGACY_START_ADDRESS
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. = 0xfffffc0000310000;
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#else
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. = 0xfffffc0001010000;
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#endif
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_text = .; /* Text and read-only data */
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.text : {
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*(.text.head)
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TEXT_TEXT
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SCHED_TEXT
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LOCK_TEXT
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*(.fixup)
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*(.gnu.warning)
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} :kernel
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_etext = .; /* End of text section */
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NOTES :kernel :note
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.dummy : {
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*(.dummy)
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} :kernel
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RODATA
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/* Exception table */
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. = ALIGN(16);
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__ex_table : {
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__start___ex_table = .;
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*(__ex_table)
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__stop___ex_table = .;
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}
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/* Will be freed after init */
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. = ALIGN(PAGE_SIZE);
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/* Init code and data */
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__init_begin = .;
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.init.text : {
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_sinittext = .;
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INIT_TEXT
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_einittext = .;
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}
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.init.data : {
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INIT_DATA
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}
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. = ALIGN(16);
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.init.setup : {
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__setup_start = .;
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*(.init.setup)
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__setup_end = .;
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}
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. = ALIGN(8);
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.initcall.init : {
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__initcall_start = .;
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INITCALLS
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__initcall_end = .;
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}
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#ifdef CONFIG_BLK_DEV_INITRD
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. = ALIGN(PAGE_SIZE);
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.init.ramfs : {
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__initramfs_start = .;
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*(.init.ramfs)
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__initramfs_end = .;
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}
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#endif
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. = ALIGN(8);
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.con_initcall.init : {
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__con_initcall_start = .;
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*(.con_initcall.init)
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__con_initcall_end = .;
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}
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. = ALIGN(8);
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SECURITY_INIT
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PERCPU(PAGE_SIZE)
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. = ALIGN(2 * PAGE_SIZE);
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__init_end = .;
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/* Freed after init ends here */
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/* Note 2 page alignment above. */
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.data.init_thread : {
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*(.data.init_thread)
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}
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. = ALIGN(PAGE_SIZE);
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.data.page_aligned : {
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*(.data.page_aligned)
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}
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. = ALIGN(64);
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.data.cacheline_aligned : {
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*(.data.cacheline_aligned)
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}
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_data = .;
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/* Data */
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.data : {
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DATA_DATA
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CONSTRUCTORS
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}
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.got : {
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*(.got)
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}
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.sdata : {
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*(.sdata)
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}
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_edata = .; /* End of data section */
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__bss_start = .;
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.sbss : {
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*(.sbss)
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*(.scommon)
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}
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.bss : {
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*(.bss)
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*(COMMON)
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}
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__bss_stop = .;
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_end = .;
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/* Sections to be discarded */
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/DISCARD/ : {
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EXIT_TEXT
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EXIT_DATA
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*(.exitcall.exit)
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}
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.mdebug 0 : {
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*(.mdebug)
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}
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.note 0 : {
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*(.note)
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}
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STABS_DEBUG
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DWARF_DEBUG
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}
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