Re: status of Darwin support

[Christian Thalinger <Christian.Thalinger@Sun.COM>]

Christian Thalinger wrote:
> I tried that before, but then I get the:
> 
> Unable to find Mach task port for process-id 90603: (os/kern) failure (0x5).
>  (please check gdb is setgid procmod)
> 
> again.  I just tried to run it as root, then it runs but the break does
> not work.  I'm confused...

I was able to attach to the process.  Here is the data:

(gdb) info locals
sect1 = (const struct obj_section *) 0x860430
sect2 = (const struct obj_section *) 0x867e30
sect1_addr = 7008
sect2_addr = 7106
__PRETTY_FUNCTION__ = "qsort_cmp"
(gdb) p *sect1->the_bfd_section
$1 = {
  name = 0x85fa34 ".text",
  id = 25,
  index = 0,
  next = 0x8614c4,
  prev = 0x0,
  flags = 283,
  user_set_vma = 0,
  linker_mark = 0,
  linker_has_input = 0,
  gc_mark = 0,
  segment_mark = 0,
  sec_info_type = 0,
  use_rela_p = 0,
  has_tls_reloc = 0,
  has_tls_get_addr_call = 0,
  has_gp_reloc = 0,
  need_finalize_relax = 0,
  reloc_done = 0,
  vma = 7008,
  lma = 7008,
  size = 13427,
  rawsize = 0,
  relax = 0x0,
  relax_count = 0,
  output_offset = 0,
  output_section = 0x0,
  alignment_power = 2,
  relocation = 0x0,
  orelocation = 0x0,
  reloc_count = 0,
  filepos = 2912,
  rel_filepos = 0,
  line_filepos = 0,
  userdata = 0x0,
  contents = 0x0,
  lineno = 0x0,
  lineno_count = 0,
  entsize = 0,
  kept_section = 0x0,
  moving_line_filepos = 0,
  target_index = 0,
  used_by_bfd = 0x0,
  constructor_chain = 0x0,
  owner = 0x63e0e0,
  symbol = 0x85fa3c,
  symbol_ptr_ptr = 0x8614a8,
  map_head = {
    link_order = 0x0,
    s = 0x0
  },
  map_tail = {
    link_order = 0x0,
    s = 0x0
  }
}
(gdb) p *sect1->objfile
$2 = {
  next = 0x71e000,
  name = 0x63dd70
"/Users/twisti/bsd-port/hotspot/build/bsd/bsd_i486_compiler2/jvmg/gamma",
  flags = 1,
  symtabs = 0x0,
  psymtabs = 0x0,
  psymtabs_addrmap = 0x0,
  free_psymtabs = 0x0,
  obfd = 0x63e0e0,
  gdbarch = 0x85d408,
  mtime = 1249556492,
  objfile_obstack = {
    chunk_size = 4072,
    chunk = 0x865e00,
    object_base = 0x865ef8 "",
    next_free = 0x865ef8 "",
    chunk_limit = 0x866de8 "",
    temp = 0,
    alignment_mask = 3,
    chunkfun = 0x183a90 <xmalloc>,
    freefun = 0x182010 <xfree>,
    extra_arg = 0x0,
    use_extra_arg = 0,
    maybe_empty_object = 0,
    alloc_failed = 0
  },
  psymbol_cache = 0x63e010,
  macro_cache = 0x63e190,
  demangled_names_hash = 0x63e350,
  global_psymbols = {
    list = 0x0,
    next = 0x0,
    size = 0
  },
  static_psymbols = {
    list = 0x0,
    next = 0x0,
    size = 0
  },
  msymbols = 0x8608e4,
  minimal_symbol_count = 64,
  msymbol_hash = {0x0 <repeats 30 times>, 0x86090c, 0x0, 0x0, 0x0, 0x0,
0x0, 0x860e84, 0x0 <repeats 28 times>, 0x8609d4, 0x0, 0x0, 0x0, 0x0,
0x860efc, 0x0, 0x0, 0x860ed4, 0x0 <repeats 22 times>, 0x860e0c, 0x0
<repeats 29 times>, 0x861014, 0x860f74, 0x0 <repeats 17 times>,
0x860fec, 0x0 <repeats 16 times>, 0x860c54, 0x0 <repeats 11 times>,
0x8610dc, 0x0 <repeats 38 times>, 0x8610b4, 0x0 <repeats 30 times>,
0x860f9c, 0x0 <repeats 42 times>, 0x860a24, 0x0, 0x860de4, 0x0 <repeats
12 times>, 0x860934, 0x0 <repeats 41 times>, 0x860984, 0x0 <repeats 45
times>, 0x86103c, 0x0 <repeats 11 times>, 0x861154, 0x0 <repeats 30
times>, 0x860c04, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x860bdc, 0x0
<repeats 19 times>...},
  msymbol_demangled_hash = {0x0 <repeats 2039 times>},
  sf = 0x29b460,
  ei = {
    entry_point = 7008
  },
  deprecated_sym_stab_info = 0x0,
  deprecated_sym_private = 0x0,
  data = 0x63de70,
  num_data = 8,
  section_offsets = 0x860484,
  num_sections = 9,
  sect_index_text = 0,
  sect_index_data = -1,
  sect_index_bss = -1,
  sect_index_rodata = -1,
  sections = 0x860430,
  sections_end = 0x860484,
  separate_debug_objfile = 0x0,
  separate_debug_objfile_backlink = 0x0,
  stats = {
    n_minsyms = 64,
    n_psyms = 0,
    n_syms = 0,
    n_stabs = 0,
    n_types = 0,
    sz_strtab = 0
  },
  cp_namespace_symtab = 0x0
}
(gdb) p *sect2->the_bfd_section
$3 = {
  name = 0x8674d4 ".text",
  id = 34,
  index = 0,
  next = 0x868ec4,
  prev = 0x0,
  flags = 311,
  user_set_vma = 0,
  linker_mark = 0,
  linker_has_input = 0,
  gc_mark = 0,
  segment_mark = 0,
  sec_info_type = 0,
  use_rela_p = 0,
  has_tls_reloc = 0,
  has_tls_get_addr_call = 0,
  has_gp_reloc = 0,
  need_finalize_relax = 0,
  reloc_done = 0,
  vma = 0,
  lma = 0,
  size = 13329,
  rawsize = 0,
  relax = 0x0,
  relax_count = 0,
  output_offset = 0,
  output_section = 0x868e14,
  alignment_power = 0,
  relocation = 0x0,
  orelocation = 0x0,
  reloc_count = 651,
  filepos = 1344,
  rel_filepos = 53004,
  line_filepos = 0,
  userdata = 0x0,
  contents = 0x0,
  lineno = 0x0,
  lineno_count = 0,
  entsize = 0,
  kept_section = 0x0,
  moving_line_filepos = 0,
  target_index = 0,
  used_by_bfd = 0x0,
  constructor_chain = 0x0,
  owner = 0x63e400,
  symbol = 0x8674dc,
  symbol_ptr_ptr = 0x868ea8,
  map_head = {
    link_order = 0x0,
    s = 0x0
  },
  map_tail = {
    link_order = 0x0,
    s = 0x0
  }
}
(gdb) p *sect2->objfile
$4 = {
  next = 0x0,
  name = 0x63e590
"/Users/twisti/bsd-port/hotspot/build/bsd/bsd_i486_compiler2/jvmg/launcher.o",

  flags = 1,
  symtabs = 0x0,
  psymtabs = 0x8799c8,
  psymtabs_addrmap = 0x879a54,
  free_psymtabs = 0x0,
  obfd = 0x63e400,
  gdbarch = 0x85d408,
  mtime = 1248941544,
  objfile_obstack = {
    chunk_size = 4072,
    chunk = 0x879400,
    object_base = 0x879a7c "",
    next_free = 0x879a7c "",
    chunk_limit = 0x87a3e8 "",
    temp = 0,
    alignment_mask = 3,
    chunkfun = 0x183a90 <xmalloc>,
    freefun = 0x182010 <xfree>,
    extra_arg = 0x0,
    use_extra_arg = 0,
    maybe_empty_object = 0,
    alloc_failed = 0
  },
  psymbol_cache = 0x63e4d0,
  macro_cache = 0x63e530,
  demangled_names_hash = 0x63e6b0,
  global_psymbols = {
    list = 0x63eb70,
    next = 0x63ebac,
    size = 102
  },
  static_psymbols = {
    list = 0x82d000,
    next = 0x82d218,
    size = 204
  },
  msymbols = 0x867e08,
  minimal_symbol_count = 0,
  msymbol_hash = {0x0 <repeats 2039 times>},
  msymbol_demangled_hash = {0x0 <repeats 2039 times>},
  sf = 0x29b460,
  ei = {
    entry_point = 4294967295
  },
  deprecated_sym_stab_info = 0x0,
  deprecated_sym_private = 0x0,
  data = 0x63e390,
  num_data = 8,
  section_offsets = 0x867e78,
  num_sections = 17,
  sect_index_text = 0,
  sect_index_data = -1,
  sect_index_bss = -1,
  sect_index_rodata = -1,
  sections = 0x867e30,
  sections_end = 0x867e78,
  separate_debug_objfile = 0x0,
  separate_debug_objfile_backlink = 0x0,
  stats = {
    n_minsyms = 0,
    n_psyms = 149,
    n_syms = 0,
    n_stabs = 0,
    n_types = 0,
    sz_strtab = 0
  },
  cp_namespace_symtab = 0x0
}
(gdb)

-- Christian