支持stl容器的gdb自定义命令

# 本文可以从直接下载
# 有关gdb的高级使用，请浏览：http://blog.chinaunix.net/uid-20682147-id-76425.html
#
# 使用方法：
# 将以下内容追加到~/.gdbinit文件的尾部，然后再启动gdb，如果gdb已经启动，则可以source ~/.gdbinit来立即生效。
##########################################
#                                        #
#   STL GDB evaluators/views/utilities   #
#                                        #
##########################################
#
#   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 command
#       std::map -- via pmap command
#       std::multimap -- via pmap 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
#
##########################################################################
#                                                                        #
# CopyLefty @ 2008 - Dan C Marinescu - No Rights Reserved / GPL V3.      #
# Inspired by intial work of Tom Malnar and many others                 #
#  (do whatever you want with this code, hope it helps)                 #
#   Email: [e-mail]                                     #
#                                                                        #
##########################################################################




#
# 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






#
# 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 + 4
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 + 4
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 + 4)
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