gdbを使ってCのデバッグを行うメモ ref: https://qiita.com/edo_m18/items/fee0ab976bf9181f5712

file0.txt

$ apt-get build-dep gdb
$ apt-get source gdb
$ cd gdb-7.7.1 # 適宜、DLされたバージョンに置き換えてください
$ ./configure --enable-tui=yes
$ make
# grab a coffee
$ sudo make install

file1.txt

You must put some 'source' URIs in your sources.list

file10.txt

(gdb) run '(1+2)'

file2.txt

$ sudo su -c "grep '^deb ' /etc/apt/sources.list | \
sed 's/^deb/deb-src/g' > /etc/apt/sources.list.d/deb-src.list"

file3.txt

$ sudo apt update -y

file4.txt

$ gcc -g -O0 hoge.c

file5.txt

$ gdb a.out

file6.txt

$ gdb -tui a.out

file7.txt

# a.outが生成される
$ gcc -g -O0 9cc.c

file8.txt

$ gdb -tui a.out

file9.txt

(gdb) b main