gdb commands

gcc/g++ -g -Wall -o sort sort.cddd --separate filegdb file -tuigdb file coreCtrl+PCtrl+NCtrl+X+Ahelprun    run    run arguments        # run 12 5 7break    break line_number        # break 43    break function_name        # break main    break filename:line_number        # break src/ins.c:12    break filename:function_name        # break src/ins.c:sort    break +offset        # break +12    break -offset        # break -12    break *address        # break *0x1234    break break_args if condition_expression        # break if i == 999 <==> continue N        # break 31 if x==1 <==> break 31 ---> condition 1 x==1        # break sort if x > 1 <==> break sort ---> condition 1 x > 1        # break 55 if (x & y) == 1 && p != NULL && (i + j) % k < 2        # break 57 if strlen(str) > 3 && myfun(str) && !error(n)        # break 88 thread 3 if x==yclear    clear line_number        # clear 43    clear function_name        # clear main    clear filename:line_number        # clear src/ins.c:12    clear filename:function_name        # clear src/ins.c:sort    clear filename        # clear maintbreakhbreakrbreakcontinue    continue breakpoint_count        # continue 3condition    condition breakpoint_index condition_expression        # condition 1 x==1 # set condition        # condition 1 # empty condition, but keep breakpointinfo breakpointsnext    next times        # next 3step    step times        # step 3delete    delete    delete breakpoint_index/watch_index/breakpoint_list        # delete 5list    list filename        # list main    list function_name        # list insert    list filename:function_name        # list cstring.c:mainquitdisable    disable breakpoint_list        # disable 1 2 3enable    enable breakpoint_list        # enable 1 2 3    enable once breakpoint_list        # enable once 1 2 3finishuntil    until    until line_number        # until 17    until function_name        # until swap    until filename:line_number        # until main:17    until filename:function_name        # until main:swapprint    print varriable        # print n    print /format varriable        # print /x n        # print /c n        # print /s n        # print /f nprintf    printf format, args        # printf "%d\n", ndisplay    display varriable        # display *p        # disable display 1        # enable display 1        # undisplay 1ptype    ptype varriable---------    print cos(0.0)          # $1 = 14368    print (double)cos(0.0)  # $1 = 14368    -----    set $p = (double (*) (double))cos    ptype $p # type = double (*) ()    print cos(3.14159265) # $2 = 14368    print $p(3.14159265)  # $3 = -1---------commands    commands breakpoint_number    ...commands...    end        # commands 1        # silent        # printf "fib was passed %d.\n", n        # continue        # end        # define print_and_go        # printf $arg0, $arg1        # continue        # end        # commands 1        # silent        # print_and_go "fib was passed %d." n        # end        # commands 2        # silent        # printf "string has a length of %d\n", strlen(string)        # end        # commands 3        # print *tmp        # if 0 != tmp->left        #   print tmp->left->val        #   else        #   print "none"        #   end        # if 0 != tmp->right        #   print tmp->right->val        #   else        #   print "none"        #   end        # end        # commands 3 # cancel conmmands 3        # endshow userwatch    watch variable/expression        # watch x       # when x changes pause        # watch x > 5   # when (x>5) changes pause        # watch (i | j > 12) && i > 24 && strlen(name) > 6info locals# to show dynamic-array    # int * p = (int *)malloc(sizeof(int) * 8));    *pointer@number_of_elements        # print *p@8    (type [number_of_elements])*pointer        # (int [8])*pset    set variable = n        # set argc = 3    set variable_array variable_list        # set args 1 2 3 4 # change argv[1-5]        # (char * [5])*argv        # *argv@5    set $variable = n        # set $i = 0        # print w[$i++]ulimit    ulimit -c n # n KB    ulimit -c unlimitedlimit    limit coredumpsize n # n Byte, for tcsh, cshbacktraceframe frame_number    # frame 1strace file argsinfo threadsthread thread_index    # thread 3bt--------------------------------------------    # ps ax    # gdb server 1254 # gdb file process_id    # bt    # frame 1         # frame frame_id--------------------------------------------handle SIGSEGV nostop noprint-------------------------------------------------------------------    # cd z    # gcc -g -c b.c    # ar rc lib88.a b.o    # cd ..    # gcc -g -o a.out a.c -l88 -Lz # gcc -g -o a.out a.c z/lib88.a-------------------------------------------------------------------    # cd z    # gcc -fPIC -c b.c    # gcc -shared -o lib99.so b.o    # cd ..    # gcc -g -o a.out a.c -l99 -Lz # gcc -g -o a.out a.c z/lib99.so-------------------------------------------------------------------