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be7635e728
KASAN needs to know whether the allocation happens in an IRQ handler. This lets us strip everything below the IRQ entry point to reduce the number of unique stack traces needed to be stored. Move the definition of __irq_entry to <linux/interrupt.h> so that the users don't need to pull in <linux/ftrace.h>. Also introduce the __softirq_entry macro which is similar to __irq_entry, but puts the corresponding functions to the .softirqentry.text section. Signed-off-by: Alexander Potapenko <glider@google.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Christoph Lameter <cl@linux.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Andrey Konovalov <adech.fo@gmail.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com> Cc: Konstantin Serebryany <kcc@google.com> Cc: Dmitry Chernenkov <dmitryc@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
142 lines
2.7 KiB
ArmAsm
142 lines
2.7 KiB
ArmAsm
/*
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* Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu>
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* Copyright (C) 2008-2009 PetaLogix
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* Copyright (C) 2006 Atmark Techno, Inc.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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OUTPUT_ARCH(microblaze)
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ENTRY(microblaze_start)
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#include <asm/page.h>
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#include <asm-generic/vmlinux.lds.h>
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#include <asm/thread_info.h>
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#ifdef __MICROBLAZEEL__
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jiffies = jiffies_64;
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#else
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jiffies = jiffies_64 + 4;
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#endif
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SECTIONS {
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. = CONFIG_KERNEL_START;
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microblaze_start = CONFIG_KERNEL_BASE_ADDR;
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.text : AT(ADDR(.text) - LOAD_OFFSET) {
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_text = . ;
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_stext = . ;
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HEAD_TEXT
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TEXT_TEXT
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*(.fixup)
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EXIT_TEXT
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EXIT_CALL
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SCHED_TEXT
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LOCK_TEXT
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KPROBES_TEXT
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IRQENTRY_TEXT
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SOFTIRQENTRY_TEXT
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. = ALIGN (4) ;
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_etext = . ;
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}
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. = ALIGN (4) ;
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__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
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_fdt_start = . ; /* place for fdt blob */
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*(__fdt_blob) ; /* Any link-placed DTB */
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. = _fdt_start + 0x8000; /* Pad up to 32kbyte */
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_fdt_end = . ;
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}
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. = ALIGN(16);
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RODATA
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EXCEPTION_TABLE(16)
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NOTES
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/*
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* sdata2 section can go anywhere, but must be word aligned
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* and SDA2_BASE must point to the middle of it
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*/
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.sdata2 : AT(ADDR(.sdata2) - LOAD_OFFSET) {
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_ssrw = .;
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. = ALIGN(PAGE_SIZE); /* page aligned when MMU used */
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*(.sdata2)
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. = ALIGN(8);
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_essrw = .;
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_ssrw_size = _essrw - _ssrw;
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_KERNEL_SDA2_BASE_ = _ssrw + (_ssrw_size / 2);
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}
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_sdata = . ;
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RW_DATA_SECTION(32, PAGE_SIZE, THREAD_SIZE)
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_edata = . ;
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/* Under the microblaze ABI, .sdata and .sbss must be contiguous */
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. = ALIGN(8);
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.sdata : AT(ADDR(.sdata) - LOAD_OFFSET) {
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_ssro = .;
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*(.sdata)
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}
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.sbss : AT(ADDR(.sbss) - LOAD_OFFSET) {
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_ssbss = .;
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*(.sbss)
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_esbss = .;
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_essro = .;
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_ssro_size = _essro - _ssro ;
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_KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ;
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}
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. = ALIGN(PAGE_SIZE);
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__init_begin = .;
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INIT_TEXT_SECTION(PAGE_SIZE)
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.init.data : AT(ADDR(.init.data) - LOAD_OFFSET) {
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INIT_DATA
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}
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. = ALIGN(4);
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.init.ivt : AT(ADDR(.init.ivt) - LOAD_OFFSET) {
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__ivt_start = .;
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*(.init.ivt)
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__ivt_end = .;
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}
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.init.setup : AT(ADDR(.init.setup) - LOAD_OFFSET) {
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INIT_SETUP(0)
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}
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.initcall.init : AT(ADDR(.initcall.init) - LOAD_OFFSET ) {
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INIT_CALLS
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}
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.con_initcall.init : AT(ADDR(.con_initcall.init) - LOAD_OFFSET) {
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CON_INITCALL
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}
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SECURITY_INIT
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__init_end_before_initramfs = .;
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.init.ramfs : AT(ADDR(.init.ramfs) - LOAD_OFFSET) {
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INIT_RAM_FS
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}
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__init_end = .;
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.bss ALIGN (PAGE_SIZE) : AT(ADDR(.bss) - LOAD_OFFSET) {
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/* page aligned when MMU used */
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__bss_start = . ;
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*(.bss*)
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*(COMMON)
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. = ALIGN (4) ;
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__bss_stop = . ;
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}
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. = ALIGN(PAGE_SIZE);
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_end = .;
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DISCARDS
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}
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