1
gcc-版本号-arm-linux-gnueabihf

1
gcc-7.5.0-arm-linux-gnueabihf

1
#!/bin/bash
2

3
# 所有工具链的根目录
4
TOOLCHAIN_ROOT="/usr/local/arm"
5

6
# 显示所有可用版本
7
function list_versions() {
8
    echo "Available toolchain versions:"
9
    for dir in "$TOOLCHAIN_ROOT"/gcc-*; do
10
        ver=$(basename "$dir" | sed 's/^gcc-\(.*\)-arm.*/\1/')
11
        echo "  - $ver"
12
    done
13
}
14

15
# 显示当前交叉编译器版本
16
function current_version() {
17
    which arm-linux-gnueabihf-gcc >/dev/null 2>&1 || {
18
        echo "arm-linux-gnueabihf-gcc not found in PATH"
19
        return
20
    }
21

22
    echo -n "Current compiler version: "
23
    arm-linux-gnueabihf-gcc -v 2>&1 | grep "gcc 版本" | awk '{print $3}'
24
}
25

26
# 切换工具链
27
function switch_version() {
28
    local version=$1
29
    local match_dir="$TOOLCHAIN_ROOT/gcc-${version}-arm-linux-gnueabihf"
30

31
    if [ ! -d "$match_dir" ]; then
32
        echo "Error: Toolchain version $version not found in $TOOLCHAIN_ROOT"
33
        list_versions
34
        return 1
35
    fi
36

37
    # 清除当前 PATH 中旧的 toolchain 目录
38
    export PATH=$(echo "$PATH" | tr ':' '\n' | grep -v "$TOOLCHAIN_ROOT" | paste -sd ':' -)
39
    # 加入新版本路径
40
    export PATH="$match_dir/bin:$PATH"
41

42
    echo "Switched to toolchain version $version"
43
    current_version
44
}
45

46
# 参数处理
47
case "$1" in
48
    list)
49
        list_versions
50
        ;;
51
    current)
52
        current_version
53
        ;;
54
    switch)
55
        if [ -z "$2" ]; then
56
            echo "Usage: source toolchain-switcher.sh switch <version>"
57
        else
58
            switch_version "$2"
59
        fi
60
        ;;
61
    *)
62
        echo "Usage:"
63
        echo "  source toolchain-switcher.sh list           # List available versions"
64
        echo "  source toolchain-switcher.sh current        # Show current version"
65
        echo "  source toolchain-switcher.sh switch 4.9.4   # Switch to version"
66
        ;;
67
esac