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>
158 lines
2.4 KiB
ArmAsm
158 lines
2.4 KiB
ArmAsm
/*
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* ld script for the c6x kernel
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*
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* Copyright (C) 2010, 2011 Texas Instruments Incorporated
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* Mark Salter <msalter@redhat.com>
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*/
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#include <asm-generic/vmlinux.lds.h>
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#include <asm/thread_info.h>
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#include <asm/page.h>
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ENTRY(_c_int00)
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#if defined(CONFIG_CPU_BIG_ENDIAN)
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jiffies = jiffies_64 + 4;
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#else
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jiffies = jiffies_64;
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#endif
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#define READONLY_SEGMENT_START \
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. = PAGE_OFFSET;
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#define READWRITE_SEGMENT_START \
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. = ALIGN(128); \
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_data_lma = .;
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SECTIONS
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{
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/*
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* Start kernel read only segment
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*/
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READONLY_SEGMENT_START
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.vectors :
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{
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_vectors_start = .;
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*(.vectors)
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. = ALIGN(0x400);
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_vectors_end = .;
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}
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/*
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* This section contains data which may be shared with other
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* cores. It needs to be a fixed offset from PAGE_OFFSET
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* regardless of kernel configuration.
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*/
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.virtio_ipc_dev :
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{
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*(.virtio_ipc_dev)
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}
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. = ALIGN(PAGE_SIZE);
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__init_begin = .;
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.init :
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{
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_sinittext = .;
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HEAD_TEXT
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INIT_TEXT
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_einittext = .;
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}
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INIT_DATA_SECTION(16)
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PERCPU_SECTION(128)
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. = ALIGN(PAGE_SIZE);
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__init_end = .;
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.text :
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{
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_text = .;
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_stext = .;
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TEXT_TEXT
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SCHED_TEXT
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LOCK_TEXT
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IRQENTRY_TEXT
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SOFTIRQENTRY_TEXT
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KPROBES_TEXT
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*(.fixup)
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*(.gnu.warning)
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}
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EXCEPTION_TABLE(16)
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NOTES
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RO_DATA_SECTION(PAGE_SIZE)
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.const :
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{
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*(.const .const.* .gnu.linkonce.r.*)
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*(.switch)
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}
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. = ALIGN (8) ;
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__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET)
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{
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_fdt_start = . ; /* place for fdt blob */
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*(__fdt_blob) ; /* Any link-placed DTB */
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BYTE(0); /* section always has contents */
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. = _fdt_start + 0x4000; /* Pad up to 16kbyte */
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_fdt_end = . ;
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}
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_etext = .;
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/*
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* Start kernel read-write segment.
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*/
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READWRITE_SEGMENT_START
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_sdata = .;
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.fardata : AT(ADDR(.fardata) - LOAD_OFFSET)
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{
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INIT_TASK_DATA(THREAD_SIZE)
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NOSAVE_DATA
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PAGE_ALIGNED_DATA(PAGE_SIZE)
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CACHELINE_ALIGNED_DATA(128)
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READ_MOSTLY_DATA(128)
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DATA_DATA
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CONSTRUCTORS
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*(.data1)
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*(.fardata .fardata.*)
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*(.data.debug_bpt)
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}
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.neardata ALIGN(8) : AT(ADDR(.neardata) - LOAD_OFFSET)
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{
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*(.neardata2 .neardata2.* .gnu.linkonce.s2.*)
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*(.neardata .neardata.* .gnu.linkonce.s.*)
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. = ALIGN(8);
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}
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_edata = .;
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__bss_start = .;
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SBSS(8)
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BSS(8)
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.far :
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{
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. = ALIGN(8);
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*(.dynfar)
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*(.far .far.* .gnu.linkonce.b.*)
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. = ALIGN(8);
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}
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__bss_stop = .;
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_end = .;
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DWARF_DEBUG
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/DISCARD/ :
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{
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EXIT_TEXT
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EXIT_DATA
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EXIT_CALL
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*(.discard)
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*(.discard.*)
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*(.interp)
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}
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}
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