1f866c53ec
Changes in 4.9.327 parisc: Fix exception handler for fldw and fstw instructions xfrm: fix refcount leak in __xfrm_policy_check() af_key: Do not call xfrm_probe_algs in parallel rose: check NULL rose_loopback_neigh->loopback bonding: 802.3ad: fix no transmission of LACPDUs netfilter: nft_payload: report ERANGE for too long offset and length ratelimit: Fix data-races in ___ratelimit(). net: Fix a data-race around sysctl_tstamp_allow_data. net: Fix a data-race around sysctl_net_busy_poll. net: Fix a data-race around sysctl_net_busy_read. net: Fix a data-race around sysctl_somaxconn. ixgbe: stop resetting SYSTIME in ixgbe_ptp_start_cyclecounter btrfs: check if root is readonly while setting security xattr loop: Check for overflow while configuring loop asm-generic: sections: refactor memory_intersects mm/hugetlb: fix hugetlb not supporting softdirty tracking mm: Force TLB flush for PFNMAP mappings before unlink_file_vma() s390/mm: do not trigger write fault when vma does not allow VM_WRITE x86/cpu: Add Tiger Lake to Intel family x86/bugs: Add "unknown" reporting for MMIO Stale Data kbuild: Fix include path in scripts/Makefile.modpost Bluetooth: L2CAP: Fix build errors in some archs media: pvrusb2: fix memory leak in pvr_probe HID: hidraw: fix memory leak in hidraw_release() fbdev: fb_pm2fb: Avoid potential divide by zero error ftrace: Fix NULL pointer dereference in is_ftrace_trampoline when ftrace is dead arm64: map FDT as RW for early_init_dt_scan() s390/hypfs: avoid error message under KVM netfilter: conntrack: NF_CONNTRACK_PROCFS should no longer default to y mm/rmap: Fix anon_vma->degree ambiguity leading to double-reuse kprobes: don't call disarm_kprobe() for disabled kprobes Linux 4.9.327 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I6944c82cad25fbe5a35384f4ef0b7fb485203a05
142 lines
4.7 KiB
C
142 lines
4.7 KiB
C
#ifndef _ASM_GENERIC_SECTIONS_H_
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#define _ASM_GENERIC_SECTIONS_H_
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/* References to section boundaries */
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#include <linux/compiler.h>
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#include <linux/types.h>
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/*
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* Usage guidelines:
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* _text, _data: architecture specific, don't use them in arch-independent code
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* [_stext, _etext]: contains .text.* sections, may also contain .rodata.*
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* and/or .init.* sections
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* [_sdata, _edata]: contains .data.* sections, may also contain .rodata.*
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* and/or .init.* sections.
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* [__start_rodata, __end_rodata]: contains .rodata.* sections
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* [__start_data_ro_after_init, __end_data_ro_after_init]:
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* contains data.ro_after_init section
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* [__init_begin, __init_end]: contains .init.* sections, but .init.text.*
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* may be out of this range on some architectures.
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* [_sinittext, _einittext]: contains .init.text.* sections
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* [__bss_start, __bss_stop]: contains BSS sections
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*
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* Following global variables are optional and may be unavailable on some
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* architectures and/or kernel configurations.
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* _text, _data
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* __kprobes_text_start, __kprobes_text_end
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* __entry_text_start, __entry_text_end
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* __ctors_start, __ctors_end
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* __irqentry_text_start, __irqentry_text_end
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* __softirqentry_text_start, __softirqentry_text_end
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*/
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extern char _text[], _stext[], _etext[];
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extern char _data[], _sdata[], _edata[];
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extern char __bss_start[], __bss_stop[];
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extern char __init_begin[], __init_end[];
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extern char _sinittext[], _einittext[];
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extern char __start_data_ro_after_init[], __end_data_ro_after_init[];
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extern char _end[];
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extern char __per_cpu_load[], __per_cpu_start[], __per_cpu_end[];
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extern char __kprobes_text_start[], __kprobes_text_end[];
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extern char __entry_text_start[], __entry_text_end[];
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extern char __start_rodata[], __end_rodata[];
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extern char __irqentry_text_start[], __irqentry_text_end[];
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extern char __softirqentry_text_start[], __softirqentry_text_end[];
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/* Start and end of .ctors section - used for constructor calls. */
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extern char __ctors_start[], __ctors_end[];
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extern __visible const void __nosave_begin, __nosave_end;
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/* function descriptor handling (if any). Override
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* in asm/sections.h */
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#ifndef dereference_function_descriptor
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#define dereference_function_descriptor(p) (p)
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#endif
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/* random extra sections (if any). Override
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* in asm/sections.h */
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#ifndef arch_is_kernel_text
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static inline int arch_is_kernel_text(unsigned long addr)
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{
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return 0;
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}
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#endif
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#ifndef arch_is_kernel_data
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static inline int arch_is_kernel_data(unsigned long addr)
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{
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return 0;
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}
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#endif
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/**
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* memory_contains - checks if an object is contained within a memory region
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* @begin: virtual address of the beginning of the memory region
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* @end: virtual address of the end of the memory region
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* @virt: virtual address of the memory object
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* @size: size of the memory object
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*
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* Returns: true if the object specified by @virt and @size is entirely
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* contained within the memory region defined by @begin and @end, false
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* otherwise.
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*/
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static inline bool memory_contains(void *begin, void *end, void *virt,
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size_t size)
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{
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return virt >= begin && virt + size <= end;
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}
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/**
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* memory_intersects - checks if the region occupied by an object intersects
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* with another memory region
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* @begin: virtual address of the beginning of the memory region
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* @end: virtual address of the end of the memory region
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* @virt: virtual address of the memory object
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* @size: size of the memory object
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*
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* Returns: true if an object's memory region, specified by @virt and @size,
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* intersects with the region specified by @begin and @end, false otherwise.
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*/
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static inline bool memory_intersects(void *begin, void *end, void *virt,
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size_t size)
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{
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void *vend = virt + size;
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if (virt < end && vend > begin)
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return true;
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return false;
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}
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/**
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* init_section_contains - checks if an object is contained within the init
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* section
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* @virt: virtual address of the memory object
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* @size: size of the memory object
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*
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* Returns: true if the object specified by @virt and @size is entirely
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* contained within the init section, false otherwise.
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*/
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static inline bool init_section_contains(void *virt, size_t size)
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{
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return memory_contains(__init_begin, __init_end, virt, size);
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}
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/**
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* init_section_intersects - checks if the region occupied by an object
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* intersects with the init section
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* @virt: virtual address of the memory object
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* @size: size of the memory object
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*
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* Returns: true if an object's memory region, specified by @virt and @size,
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* intersects with the init section, false otherwise.
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*/
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static inline bool init_section_intersects(void *virt, size_t size)
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{
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return memory_intersects(__init_begin, __init_end, virt, size);
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}
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#endif /* _ASM_GENERIC_SECTIONS_H_ */
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