[M3devel] debugging with stock gdb

[Jay K]

Here's a quick sample of what you can do now in gdb, so much better than before.
Records used to have no types.
This is on Darwin.


jbook2:m3cc jay$ gdb /cm3/bin/Juno 
GNU gdb 6.3.50-20050815 (Apple version gdb-966) (Tue Mar 10 02:43:13 UTC 2009)

(gdb) break RTType__Expand
(gdb) run
Breakpoint 1, RTType__Expand (M3_DaARCY_m=0x1010cccd0) at ../src/runtime/common/RTType.m3:715
715        new : InfoMap;
(gdb) n
716        pi, pt: SlotPtr;
(gdb) n
719        IF m.map = NIL THEN
(gdb) 
721          m.cnt  := 0;
(gdb) info locals
M3_AcxOUs_key2 = 4312105936
M3_AcxOUs_key1 = 4321920593
M3_EM4UH1_pt = (struct {...} ***) 0x0
M3_EM4UH1_pi = (struct {...} ***) 0x0
M3_BQo8Jp_new = {
  name = 0x0, 
  is_equal = 0x0, 
  rehash = 0x0, 
  initial_size = 0, 
  full = 0, 
  cnt = 0, 
  max = 0, 
  mask = 0, 
  map = 0x0
}
(gdb) p **M3_DaARCY_m
$1 = {
  name = 0x1010e2ca0, 
  is_equal = 0x8, 
  rehash = 0x7364697565707974, 
  initial_size = 0, 
  full = 2, 
  cnt = 4312673440, 
  max = 6, 
  mask = 126875185803874, 
  map = 0x2
}


 - Jay