# memory_analysis

**Repository Path**: blackvirus/memory_analysis

## Basic Information

- **Project Name**: memory_analysis
- **Description**: 程序堆内存分析工具，程序中申请后未释放的内存可以统计出来
- **Primary Language**: C++
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2024-08-16
- **Last Updated**: 2024-08-16

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## 简介：

程序堆内存分析工具，程序中申请后未释放的内存可以统计出来

## 用法：

+ 注释掉业务代码中对signal 10(SIGUSR1)的注册
+ 使用LD_PRELOAD启动程序，如LD_PRELOAD=./liballoc_hook.so ./example

## heap_parse使用方法：

+ `heap_parse [addr2line] [elf_file] [heap_file] [lib_dir]`
如:
+ `./heap_parse /usr/bin/addr2line example /tmp/heap_data_1 /usr/lib/x86_64-linux-gnu`

## Output:
```
alloc hook version 0
heap total memory: 0 kB, alloc_hook use 5625 kB
         example         0 kB
0x55c21dd29770  0 kB  71.42%   (example)
# 1  ??
     ??:0
# 2  0x7fab3463cc87   /lib/x86_64-linux-gnu/libc-2.27.so
# 3  ??
     ??:0

0x55c21dd29940  0 kB  5.71%   (example)
# 1  ??
     ??:0
# 2  0x7fab3463cc87   /lib/x86_64-linux-gnu/libc-2.27.so
# 3  ??
     ??:0

0x55c21dd28f30  0 kB  1.42%   (example)
# 1  ??
     ??:0
# 2  0x7fab3463cc87   /lib/x86_64-linux-gnu/libc-2.27.so
# 3  ??
     ??:0


mmap total size: 4 kB
0x55c21cef4000-0x55c21cef6000  r-xp   RSS:      101 kB  example
0x55c21d0f5000-0x55c21d0f6000  r--p   RSS:      101 kB  example
0x55c21d0f6000-0x55c21d0f7000  rw-p   RSS:      101 kB  example
0x7fab34fad000-0x7fab34fb4000  r-xp   RSS: 1751081839 kB  liballoc_hook.so
0x7fab34fb4000-0x7fab351b4000  ---p   RSS: 1751081839 kB  liballoc_hook.so
0x7fab351b4000-0x7fab351b5000  r--p   RSS: 1751081839 kB  liballoc_hook.so
0x7fab351b5000-0x7fab351b6000  rw-p   RSS: 1751081839 kB  liballoc_hook.so
total RSS 2709360363kB, lib RSS 2709360060 kB, text RSS 101 kB
```

## Enable static check?

+ Add `-DENABLE_STATIC_CHECK=ON` to open the cpp static check.
+ Add ` -DCMAKE_EXPORT_COMPILE_COMMANDS=ON` to open cmake commands support.
+ `cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON -DENABLE_STATIC_CHECK=ON ..`