https://github.com/yuehhua/gcc-compiler

A demo of gcc compilation collection
https://github.com/yuehhua/gcc-compiler

Last synced: 12 days ago
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A demo of gcc compilation collection

• Host: GitHub
• URL: https://github.com/yuehhua/gcc-compiler
• Owner: yuehhua
• Created: 2020-03-04T16:23:36.000Z (almost 5 years ago)
• Default Branch: master
• Last Pushed: 2020-03-04T16:28:49.000Z (almost 5 years ago)
• Last Synced: 2023-02-27T00:21:46.431Z (almost 2 years ago)
• Language: C
• Size: 1000 Bytes
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# gcc-compiler

A demo of gcc compilation collection

## Compile process

### Preprocess

```

gcc -E hello.c -o hello.i

```

### Compile

```

gcc -S hello.i -o hello.s -O2

```

### Assemble

```

as hello.s -o hello.o

```

### Disassemble object file to see machine code and assembly

```

objdump -d hello.o

```

### Show header, body information of object file

```

objdump -x hello.o

```

### Dynamic linker/loader

```

ld hello.o -o hello

```

### Run

```

./hello

```

### Check content of executable file

```

readelf -h hello

```

### Directly compile to executable file

```

gcc hello.c -o hello

```

### Check file format

```

file hello

```

---

## Compile sum

### Compile and assemble

```

gcc -O2 -c sum.c -o sum.o

```

### Static link

```

ar rcs libsum.a sum.o

```

### Compile main with static library

```

cc main.c libsum.a -o main

```