# .gdbinit file for debugging Mozilla

# You may need to put an 'add-auto-load-safe-path' command in your

# $HOME/.gdbinit file to get GDB to trust this file. If your builds are

# generally in $HOME/moz, then you can say:

#

#  add-auto-load-safe-path ~/moz

# Don't stop for the SIG32/33/etc signals that Flash produces

handle SIG32 noprint nostop pass

handle SIG33 noprint nostop pass

handle SIGPIPE noprint nostop pass

# Don't stop for certain other signals where it's not useful,

# such as the SIG64 signals triggered by the Linux

# sandboxing code on older kernels.

handle SIG38 noprint nostop pass

handle SIG64 noprint nostop pass

handle SIGSYS noprint nostop pass

# Show the concrete types behind nsIFoo

set print object on

# run when using the auto-solib-add trick

def prun

        tbreak main

        run

	set auto-solib-add 0

        cont

end

# run -mail, when using the auto-solib-add trick

def pmail

        tbreak main

        run -mail

	set auto-solib-add 0

        cont

end

# Define a "pu" command to display PRUnichar * strings (100 chars max)

# Also allows an optional argument for how many chars to print as long as

# it's less than 100.

def pu

  set $uni = $arg0

  if $argc == 2

    set $limit = $arg1

    if $limit > 100

      set $limit = 100

    end

  else

    set $limit = 100

  end

  # scratch array with space for 100 chars plus null terminator.  Make

  # sure to not use ' ' as the char so this copy/pastes well.

  set $scratch = "____________________________________________________________________________________________________"

  set $i = 0

  set $scratch_idx = 0

  while (*$uni && $i++ < $limit)

    if (*$uni < 0x80)

      set $scratch[$scratch_idx++] = *(char*)$uni++

    else

      if ($scratch_idx > 0)

	set $scratch[$scratch_idx] = '\0'

	print $scratch

	set $scratch_idx = 0

      end

      print /x *(short*)$uni++

    end

  end

  if ($scratch_idx > 0)

    set $scratch[$scratch_idx] = '\0'

    print $scratch

  end

end

# Define a "ps" command to display subclasses of nsAC?String.  Note that

# this assumes strings as of Gecko 1.9 (well, and probably a few

# releases before that as well); going back far enough will get you

# to string classes that this function doesn't work for.

def ps

  set $str = $arg0

  if (sizeof(*$str.mData) == 1 && ($str.mFlags & 1) != 0)

    print $str.mData

  else

    pu $str.mData $str.mLength

  end

end

# Define a "pa" command to display the string value for an nsAtom

def pa

  set $atom = $arg0

  if (sizeof(*((&*$atom)->mString)) == 2)

    pu (&*$atom)->mString

  end

end

# define a "pxul" command to display the type of a XUL element from

# an nsXULElement* pointer.

def pxul

  set $p = $arg0

  print $p->mNodeInfo.mRawPtr->mInner.mName->mStaticAtom->mString

end

# define a "prefcnt" command to display the refcount of an XPCOM obj

def prefcnt

  set $p = $arg0

  print ((nsPurpleBufferEntry*)$p->mRefCnt.mTagged)->mRefCnt

end

# define a "ptag" command to display the tag name of a content node

def ptag

  set $p = $arg0

  pa $p->mNodeInfo.mRawPtr->mInner.mName

end

##

## nsTArray

##

define ptarray

        if $argc == 0

                help ptarray

        else

                set $size = $arg0.mHdr->mLength

                set $capacity = $arg0.mHdr->mCapacity

                set $size_max = $size - 1

                set $elts = $arg0.Elements()

        end

        if $argc == 1

                set $i = 0

                while $i < $size

                        printf "elem[%u]: ", $i

                        p *($elts + $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 *($elts + $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 *($elts + $i)

                        set $i++

                end

          end

        end

        if $argc > 0

                printf "nsTArray length = %u\n", $size

                printf "nsTArray capacity = %u\n", $capacity

                printf "Element "

                whatis *$elts

        end

end

document ptarray

        Prints nsTArray information.

        Syntax: ptarray   

        Note: idx, idx1 and idx2 must be in acceptable range [0...size()-1].

        Examples:

        ptarray a - Prints tarray content, size, capacity and T typedef

        ptarray a 0 - Prints element[idx] from tarray

        ptarray a 1 2 - Prints elements in range [idx1..idx2] from tarray

end

def js

  call DumpJSStack()

end

def ft

  call $arg0->DumpFrameTree()

end

source .gdbinit_python