uprobe_mmap

函数名称：Called from mmap_region/vma_adjust with mm->mmap_sem acquired.* Currently we ignore all errors and always return 0, the callers* can't handle the failure anyway.

函数原型：int uprobe_mmap(struct vm_area_struct *vma)

返回类型：int

参数：

类型	参数	名称
struct vm_area_struct *	vma

1369

如果allows us to skip the uprobe_mmap if there are no uprobe events active* at this time. Probably a fine grained per inode count is better?()则返回:0

1372

如果File we map to (can be NULL). 且Flags, see mm.h. 按位与VM_WRITE按位或VM_SHARED的值的值恒等于VM_WRITE且test_bit(has uprobes , & flags)则@vma contains reference counter, not the probed instruction.

1377

如果非valid_vma: Verify if the specified vma is an executable vma* Relax restrictions while unregistering: vm_flags might have* changed after breakpoint was inserted则返回:0

1380

inode等于file_inode(File we map to (can be NULL). )

1381

如果非inode则返回:0

1384

mutex_lock(uprobes_mmap_hash(inode))

1385

For a given range in vma, build a list of probes that need to be inserted.

1392

如果非fatal_signal_pending(当前进程)且filter_chain(uprobe, UPROBE_FILTER_MMAP, The address space we belong to. )则

1394

vaddr等于offset_to_vaddr(vma, offset)

1395

install_breakpoint(uprobe, The address space we belong to. , vma, vaddr)

1397

put_uprobe(uprobe)

1399

mutex_unlock - release the mutex*@lock: the mutex to be released* Unlock a mutex that has been locked by this task previously.* This function must not be used in interrupt context. Unlocking* of a not locked mutex is not allowed.

1401

返回:0

**调用者**
名称	描述
__vma_adjust	We cannot adjust vm_start, vm_end, vm_pgoff fields of a vma that* is already present in an i_mmap tree without adjusting the tree.* The following helper function should be used when such adjustments* are necessary
mmap_region

源代码转换工具开放的插件接口	X
支持：c/c++/esqlc/java Oracle/Informix/Mysql 插件可实现：逻辑报告代码生成和批量转换代码

函数逻辑报告