diff --git a/dotfiles/gdbinit b/dotfiles/gdbinit
new file mode 100644
index 00000000..1cef8ee1
--- /dev/null
+++ b/dotfiles/gdbinit
@@ -0,0 +1,169 @@
+# Change $r13 to whatever BaseReg is mapped to
+define pregs
+print *(StgRegTable *)$r13
+end
+
+define ptso
+print *((StgRegTable*)$r13)->rCurrentTSO
+end
+
+define pR1
+print (((StgRegTable)MainRegTable).rR1)
+end
+define pR2
+print (((StgRegTable)MainRegTable).rR2)
+end
+define pR3
+print (((StgRegTable)MainRegTable).rR3)
+end
+define pR4
+print (((StgRegTable)MainRegTable).rR4)
+end
+define pR5
+print (((StgRegTable)MainRegTable).rR5)
+end
+define pR6
+print (((StgRegTable)MainRegTable).rR6)
+end
+define pR7
+print (((StgRegTable)MainRegTable).rR7)
+end
+define pR8
+print (((StgRegTable)MainRegTable).rR8)
+end
+define pFlt1
+print (StgFloat) (((StgRegTable)MainRegTable).rFlt1)
+end
+define pDbl1
+print (StgDouble) (((StgRegTable)MainRegTable).rDbl1)
+end
+
+define pSp
+print (((StgRegTable)MainRegTable).rSp)
+end
+define pSu
+print (((StgRegTable)MainRegTable).rSu)
+end
+define pSpLim
+print (((StgRegTable)MainRegTable).rSpLim)
+end
+
+define pHp
+print (((StgRegTable)MainRegTable).rHp)
+end
+define pHpLim
+print (((StgRegTable)MainRegTable).rHpLim)
+end
+
+# Change $rbp to whatever Sp is mapped to
+define pstk
+pmem $ebp 16
+end
+
+define pstk_gc
+pmem MainTSO->sp 16
+end
+
+define pmem
+set $i = $arg1
+set $mem = ((unsigned long)$arg0) & (sizeof(void*)==8 ? ~7 : ~3)
+while $i > 0
+set $i = $i - 1
+x/1a (((long *)$mem) +$i)
+end
+end
+
+define p4
+pmem $arg0 4
+end
+
+define p8
+pmem $arg0 8
+end
+
+define p16
+pmem $arg0 16
+end
+
+define pmem_forwards
+set $mem = $arg0 & (sizeof(void*)==8 ? ~7 : ~3)
+set $i = 0
+while $i < $arg1
+x/1a (((int *)$mem) + $i)
+set $i = $i + 1
+end
+end
+
+define pheap
+pmem $edi-16 16
+end
+
+define dpc
+display /i $pc
+end
+
+define pinfo
+p *((StgInfoTable *)$arg0-1)
+end
+
+define pcinfo
+p *((StgConInfoTable *)$arg0-1)
+end
+
+define prinfo
+p *((StgRetInfoTable *)$arg0-1)
+end
+
+define pfinfo
+p *((StgFunInfoTable *)$arg0-1)
+end
+
+define pbd
+p sizeof(void *)==8 ? (* ((bdescr *)((($arg0 & 0xfffffffffff00000) | (($arg0 & 0xff000) >> 6)) & 0xffffffffffffffc0))) : * ((bdescr *)((($arg0 & 0xfff00000) | (($arg0 & 0xff000) >> 7)) & 0xffffffe0))
+end
+
+define pgen
+p generations[((bdescr *)((($arg0 & 0xfff00000) | (($arg0 & 0xff000) >> 7)) & 0xffffffe0))->gen_no]
+p * ((bdescr *)((($arg0 & 0xfff00000) | (($arg0 & 0xff000) >> 7)) & 0xffffffe0))->step
+end
+
+define getmark
+set $bd = (bdescr *)((($arg0 & 0xfff00000) | (($arg0 & 0xff000) >> 7)) & 0xffffffe0)
+set $offset = (StgPtr)$arg0 - $bd->start
+set $bitmap_word = $bd->u.bitmap + ($offset / 32)
+set $mask = 1 << ($offset & 31)
+p (*$bitmap_word & $mask) != 0
+end
+
+define getmark64
+set $bd = (bdescr *)((($arg0 & 0xfffffffffff00000) | (($arg0 & 0xff000) >> 6)) & 0xffffffffffffffc0)
+set $offset = (StgPtr)$arg0 - $bd->start
+set $bitmap_word = $bd->u.bitmap + ($offset / 64)
+set $mask = 1 << ($offset & 63)
+p (*$bitmap_word & $mask) != 0
+end
+
+# ignore SIGPIPEs
+handle SIGPIPE nostop noprint ignore
+
+define debug1
+p RtsFlags.DebugFlags.interpreter=1
+p RtsFlags.DebugFlags.apply=1
+p RtsFlags.DebugFlags.sanity=1
+end
+
+define debug2
+p RtsFlags.DebugFlags.interpreter=1
+p RtsFlags.DebugFlags.sanity=1
+end
+
+define sanity
+p RtsFlags.DebugFlags.sanity=1
+end
+
+define srch
+print findPtr($1,0)
+end
+define chain
+print findPtr($1,1)
+end