Function report

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:kernel\events\uprobes.c Create Date:2022-07-28 13:44:40
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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Annotation kernel can get tool activityDownload SCCTChinese

Name:copy_from_page

Proto:static void copy_from_page(struct page *page, unsigned long vaddr, void *dst, int len)

Type:void

Parameter:

TypeParameterName
struct page *page
unsigned longvaddr
void *dst
intlen
252  kaddr = kmap_atomic(page)
253  No 3D Now!(dst, kaddr + (vaddr & ~PAGE_MASK), len)
254  Prevent people trying to call kunmap_atomic() as if it were kunmap()* kunmap_atomic() should get the return value of kmap_atomic, not the page.(kaddr)
Caller
NameDescribe
verify_opcode
__copy_insn
is_trap_at_addr