使用linux的GDB打印STL(vector,map,set..................)

在linux用gdb或者cgdb计较不爽的地方是无法打印STL的东西，所有啊去网上找了找解决方案https://www.douban.com/note/182826844/?qq-pf-to=pcqq.c2c

本帖把怎么配置这个东西写出了，万一以后忘了，可以回头找找。

首先是下载gdb文件 https://sourceware.org/gdb/wiki/STLSupport    ------》找到网页里面的

 然后点击进去下载stl_views_1.0.3.gdb

接下来把这个东西当到linux下，位置随便放，我放到了我的用户目录下

然后写一个小程序测试一下，

 

接着cgdb test 进入调试模式，然后加载刚才的stl_views_1.0.3.gdb

接着就可以看看pmap的命令了

pmap variable------------>打印variable这个map的定义和map里面的个数

pmap variable int  int(就是单纯的两个int) ------------>打印pmap的元素和map的个数

pmap variable int int 20------------>打印索引是20的map的值 和map的个数

pmap variable int int 20 200------->打印索引是20 值是200的map值和map的个数

东西很好用，就怕以后链接失效找不到这个文件了，下面会把这个文件东西拷贝在下面。以后用到了，自己建立一个stl_views_1.0.3.gdb，然后把下面的东西拷贝进去使用。

#                                                                                                        
#   STL GDB evaluators/views/utilities - 1.03
#
#   The new GDB commands:                                                         
#         are entirely non instrumental                                             
#         do not depend on any "inline"(s) - e.g. size(), [], etc
#       are extremely tolerant to debugger settings
#                                                                                 
#   This file should be "included" in .gdbinit as following:
#   source stl-views.gdb or just paste it into your .gdbinit file
#
#   The following STL containers are currently supported:
#
#       std::vector -- via pvector command
#       std::list -- via plist or plist_member command
#       std::map -- via pmap or pmap_member command
#       std::multimap -- via pmap or pmap_member command
#       std::set -- via pset command
#       std::multiset -- via pset command
#       std::deque -- via pdequeue command
#       std::stack -- via pstack command
#       std::queue -- via pqueue command
#       std::priority_queue -- via ppqueue command
#       std::bitset -- via pbitset command
#       std::string -- via pstring command
#       std::widestring -- via pwstring command
#
#   The end of this file contains (optional) C++ beautifiers
#   Make sure your debugger supports $argc
#
#   Simple GDB Macros writen by Dan Marinescu (H-PhD) - License GPL
#   Inspired by intial work of Tom Malnar, 
#     Tony Novac (PhD) / Cornell / Stanford,
#     Gilad Mishne (PhD) and Many Many Others.
#   Contact: [email protected] (Subject: STL)
#
#   Modified to work with g++ 4.3 by Anders Elton
#   Also added _member functions, that instead of printing the entire class in map, prints a member.



#
# std::vector<>
#

define pvector
    if $argc == 0
        help pvector
    else
        set $size = $arg0._M_impl._M_finish - $arg0._M_impl._M_start
        set $capacity = $arg0._M_impl._M_end_of_storage - $arg0._M_impl._M_start
        set $size_max = $size - 1
    end
    if $argc == 1
        set $i = 0
        while $i < $size
            printf "elem[%u]: ", $i
            p *($arg0._M_impl._M_start + $i)
            set $i++
        end
    end
    if $argc == 2
        set $idx = $arg1
        if $idx < 0 || $idx > $size_max
            printf "idx1, idx2 are not in acceptable range: [0..%u].\n", $size_max
        else
            printf "elem[%u]: ", $idx
            p *($arg0._M_impl._M_start + $idx)
        end
    end
    if $argc == 3
      set $start_idx = $arg1
      set $stop_idx = $arg2
      if $start_idx > $stop_idx
        set $tmp_idx = $start_idx
        set $start_idx = $stop_idx
        set $stop_idx = $tmp_idx
      end
      if $start_idx < 0 || $stop_idx < 0 || $start_idx > $size_max || $stop_idx > $size_max
        printf "idx1, idx2 are not in acceptable range: [0..%u].\n", $size_max
      else
        set $i = $start_idx
        while $i <= $stop_idx
            printf "elem[%u]: ", $i
            p *($arg0._M_impl._M_start + $i)
            set $i++
        end
      end
    end
    if $argc > 0
        printf "Vector size = %u\n", $size
        printf "Vector capacity = %u\n", $capacity
        printf "Element "
        whatis $arg0._M_impl._M_start
    end
end

document pvector
    Prints std::vector information.
    Syntax: pvector   
    Note: idx, idx1 and idx2 must be in acceptable range [0...size()-1].
    Examples:
    pvector v - Prints vector content, size, capacity and T typedef
    pvector v 0 - Prints element[idx] from vector
    pvector v 1 2 - Prints elements in range [idx1..idx2] from vector
end 

#
# std::list<>
#

define plist
    if $argc == 0
        help plist
    else
        set $head = &$arg0._M_impl._M_node
        set $current = $arg0._M_impl._M_node._M_next
        set $size = 0
        while $current != $head
            if $argc == 2
                printf "elem[%u]: ", $size
                p *($arg1*)($current + 1)
            end
            if $argc == 3
                if $size == $arg2
                    printf "elem[%u]: ", $size
                    p *($arg1*)($current + 1)
                end
            end
            set $current = $current._M_next
            set $size++
        end
        printf "List size = %u \n", $size
        if $argc == 1
            printf "List "
            whatis $arg0
            printf "Use plist   to see the elements in the list.\n"
        end
    end
end

document plist
    Prints std::list information.
    Syntax: plist   : Prints list size, if T defined all elements or just element at idx
    Examples:
    plist l - prints list size and definition
    plist l int - prints all elements and list size
    plist l int 2 - prints the third element in the list (if exists) and list size
end

define plist_member
    if $argc == 0
        help plist_member
    else
        set $head = &$arg0._M_impl._M_node
        set $current = $arg0._M_impl._M_node._M_next
        set $size = 0
        while $current != $head
            if $argc == 3
                printf "elem[%u]: ", $size
                p (*($arg1*)($current + 1)).$arg2
            end
            if $argc == 4
                if $size == $arg3
                    printf "elem[%u]: ", $size
                    p (*($arg1*)($current + 1)).$arg2
                end
            end
            set $current = $current._M_next
            set $size++
        end
        printf "List size = %u \n", $size
        if $argc == 1
            printf "List "
            whatis $arg0
            printf "Use plist_member    to see the elements in the list.\n"
        end
    end
end

document plist_member
    Prints std::list information.
    Syntax: plist   : Prints list size, if T defined all elements or just element at idx
    Examples:
    plist_member l int member - prints all elements and list size
    plist_member l int member 2 - prints the third element in the list (if exists) and list size
end


#
# std::map and std::multimap
#

define pmap
    if $argc == 0
        help pmap
    else
        set $tree = $arg0
        set $i = 0
        set $node = $tree._M_t._M_impl._M_header._M_left
        set $end = $tree._M_t._M_impl._M_header
        set $tree_size = $tree._M_t._M_impl._M_node_count
        if $argc == 1
            printf "Map "
            whatis $tree
            printf "Use pmap    to see the elements in the map.\n"
        end
        if $argc == 3
            while $i < $tree_size
                set $value = (void *)($node + 1)
                printf "elem[%u].left: ", $i
                p *($arg1*)$value
                set $value = $value + sizeof($arg1)
                printf "elem[%u].right: ", $i
                p *($arg2*)$value
                if $node._M_right != 0
                    set $node = $node._M_right
                    while $node._M_left != 0
                        set $node = $node._M_left
                    end
                else
                    set $tmp_node = $node._M_parent
                    while $node == $tmp_node._M_right
                        set $node = $tmp_node
                        set $tmp_node = $tmp_node._M_parent
                    end
                    if $node._M_right != $tmp_node
                        set $node = $tmp_node
                    end
                end
                set $i++
            end
        end
        if $argc == 4
            set $idx = $arg3
            set $ElementsFound = 0
            while $i < $tree_size
                set $value = (void *)($node + 1)
                if *($arg1*)$value == $idx
                    printf "elem[%u].left: ", $i
                    p *($arg1*)$value
                    set $value = $value + sizeof($arg1)
                    printf "elem[%u].right: ", $i
                    p *($arg2*)$value
                    set $ElementsFound++
                end
                if $node._M_right != 0
                    set $node = $node._M_right
                    while $node._M_left != 0
                        set $node = $node._M_left
                    end
                else
                    set $tmp_node = $node._M_parent
                    while $node == $tmp_node._M_right
                        set $node = $tmp_node
                        set $tmp_node = $tmp_node._M_parent
                    end
                    if $node._M_right != $tmp_node
                        set $node = $tmp_node
                    end
                end
                set $i++
            end
            printf "Number of elements found = %u\n", $ElementsFound
        end
        if $argc == 5
            set $idx1 = $arg3
            set $idx2 = $arg4
            set $ElementsFound = 0
            while $i < $tree_size
                set $value = (void *)($node + 1)
                set $valueLeft = *($arg1*)$value
                set $valueRight = *($arg2*)($value + sizeof($arg1))
                if $valueLeft == $idx1 && $valueRight == $idx2
                    printf "elem[%u].left: ", $i
                    p $valueLeft
                    printf "elem[%u].right: ", $i
                    p $valueRight
                    set $ElementsFound++
                end
                if $node._M_right != 0
                    set $node = $node._M_right
                    while $node._M_left != 0
                        set $node = $node._M_left
                    end
                else
                    set $tmp_node = $node._M_parent
                    while $node == $tmp_node._M_right
                        set $node = $tmp_node
                        set $tmp_node = $tmp_node._M_parent
                    end
                    if $node._M_right != $tmp_node
                        set $node = $tmp_node
                    end
                end
                set $i++
            end
            printf "Number of elements found = %u\n", $ElementsFound
        end
        printf "Map size = %u\n", $tree_size
    end
end

document pmap
    Prints std::map or std::multimap information. Works for std::multimap as well.
    Syntax: pmap 

 

转载于:https://www.cnblogs.com/silentNight/p/5466418.html