bug#9927: unexec/unexmacosx fails with GCC 4.6.1 on intel Mac OS X 10.6.

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bug#9927: unexec/unexmacosx fails with GCC 4.6.1 on intel Mac OS X 10.6.

From:	Peter Dyballa
Subject:	bug#9927: unexec/unexmacosx fails with GCC 4.6.1 on intel Mac OS X 10.6.8
Date:	Fri, 18 May 2012 01:08:40 +0200
Am 18.05.2012 um 00:54 schrieb Andreas Schwab:

> temacs, not emacs (which didn't build).

src/temacs:     file format mach-o-i386
src/temacs
architecture: i386, flags 0x00000012:
EXEC_P, HAS_SYMS
start address 0x00002650
Mach-O header:
 magic     : feedface
 cputype   : 00000007 (i386)
 cpusubtype: 00000003
 filetype  : 00000002 (execute)
 ncmds     : 00000019 (25)
 sizeofcmds: 00000a04
 flags     : 01000085 (noundefs+dyldlink+twolevel+0x1000000)
 reserved  : 00000002

Load command segment: name: __PAGEZERO
    vmaddr: 0000000000000000   vmsize: 0000000000001000
   fileoff: 0000000000000000 filesize: 0000000000000000 endoff: 0000000000000000
   nsects: 0   flags: 0

Load command segment: name: __TEXT
    vmaddr: 0000000000001000   vmsize: 00000000001b0000
   fileoff: 0000000000000000 filesize: 00000000001b0000 endoff: 00000000001b0000
   nsects: 8   flags: 0
 Section: __text           __TEXT           (bfdname: .text)
  addr: 0000000000002650 size: 0000000000155c63 offset: 0000000000001650
  align: 2  nreloc: 0  reloff: 0000000000000000
  flags: 80000400 (type: regular attr: some_instructions+pure_instructions)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __text_cold      __TEXT           (bfdname: __TEXT.__text_cold)
  addr: 00000000001582b3 size: 0000000000000761 offset: 00000000001572b3
  align: 0  nreloc: 0  reloff: 0000000000000000
  flags: 80000400 (type: regular attr: some_instructions+pure_instructions)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __text_startup   __TEXT           (bfdname: __TEXT.__text_startup)
  addr: 0000000000158a14 size: 0000000000001339 offset: 0000000000157a14
  align: 0  nreloc: 0  reloff: 0000000000000000
  flags: 80000400 (type: regular attr: some_instructions+pure_instructions)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __symbol_stub    __TEXT           (bfdname: __TEXT.__symbol_stub)
  addr: 0000000000159d4e size: 0000000000000c90 offset: 0000000000158d4e
  align: 1  nreloc: 0  reloff: 0000000000000000
  flags: 80000408 (type: symbol_stubs attr: some_instructions+pure_instructions)
  first indirect sym: 0 (536 entries)  stub size: 6  reserved3: 0x0
 Section: __stub_helper    __TEXT           (bfdname: __TEXT.__stub_helper)
  addr: 000000000015a9e0 size: 00000000000014fc offset: 00000000001599e0
  align: 2  nreloc: 0  reloff: 0000000000000000
  flags: 80000400 (type: regular attr: some_instructions+pure_instructions)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __cstring        __TEXT           (bfdname: .cstring)
  addr: 000000000015bedc size: 0000000000014683 offset: 000000000015aedc
  align: 0  nreloc: 0  reloff: 0000000000000000
  flags: 00000002 (type: cstring_literals attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __const          __TEXT           (bfdname: .const)
  addr: 0000000000170560 size: 0000000000000838 offset: 000000000016f560
  align: 4  nreloc: 0  reloff: 0000000000000000
  flags: 00000000 (type: regular attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __eh_frame       __TEXT           (bfdname: .eh_frame)
  addr: 0000000000170d98 size: 0000000000040268 offset: 000000000016fd98
  align: 3  nreloc: 0  reloff: 0000000000000000
  flags: 00000000 (type: regular attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0

Load command segment: name: __DATA
    vmaddr: 00000000001b1000   vmsize: 00000000001dc000
   fileoff: 00000000001b0000 filesize: 0000000000198000 endoff: 0000000000348000
   nsects: 10   flags: 0
 Section: __program_vars   __DATA           (bfdname: __DATA.__program_vars)
  addr: 00000000001b1000 size: 0000000000000014 offset: 00000000001b0000
  align: 2  nreloc: 0  reloff: 0000000000000000
  flags: 00000000 (type: regular attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __nl_symbol_ptr  __DATA           (bfdname: .non_lazy_symbol_ptr)
  addr: 00000000001b1014 size: 0000000000000b14 offset: 00000000001b0014
  align: 2  nreloc: 0  reloff: 0000000000000000
  flags: 00000006 (type: non_lazy_symbol_pointers attr: -)
  first indirect sym: 536 (709 entries)  reserved2: 0x0  reserved3: 0x0
 Section: __la_symbol_ptr  __DATA           (bfdname: .lazy_symbol_ptr)
  addr: 00000000001b1b28 size: 0000000000000860 offset: 00000000001b0b28
  align: 2  nreloc: 0  reloff: 0000000000000000
  flags: 00000007 (type: lazy_symbol_pointers attr: -)
  first indirect sym: 1245 (536 entries)  reserved2: 0x0  reserved3: 0x0
 Section: __data           __DATA           (bfdname: .data)
  addr: 00000000001b2390 size: 00000000001956dc offset: 00000000001b1390
  align: 4  nreloc: 0  reloff: 0000000000000000
  flags: 00000000 (type: regular attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __const          __DATA           (bfdname: .const_data)
  addr: 0000000000347a70 size: 0000000000001008 offset: 0000000000346a70
  align: 4  nreloc: 0  reloff: 0000000000000000
  flags: 00000000 (type: regular attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __static_data    __DATA           (bfdname: __DATA.__static_data)
  addr: 0000000000348a80 size: 0000000000000031 offset: 0000000000347a80
  align: 4  nreloc: 0  reloff: 0000000000000000
  flags: 00000000 (type: regular attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __bss4           __DATA           (bfdname: __DATA.__bss4)
  addr: 0000000000348ac0 size: 0000000000006554 offset: 0000000000000000
  align: 4  nreloc: 0  reloff: 0000000000000000
  flags: 00000001 (type: zerofill attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __bss2           __DATA           (bfdname: __DATA.__bss2)
  addr: 000000000034f014 size: 000000000002fb68 offset: 0000000000000000
  align: 2  nreloc: 0  reloff: 0000000000000000
  flags: 00000001 (type: zerofill attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __pu_bss2        __DATA           (bfdname: __DATA.__pu_bss2)
  addr: 000000000037eb7c size: 0000000000005414 offset: 0000000000000000
  align: 2  nreloc: 0  reloff: 0000000000000000
  flags: 00000001 (type: zerofill attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0
 Section: __pu_bss4        __DATA           (bfdname: __DATA.__pu_bss4)
  addr: 0000000000383f90 size: 00000000000085e4 offset: 0000000000000000
  align: 4  nreloc: 0  reloff: 0000000000000000
  flags: 00000001 (type: zerofill attr: -)
  reserved1: 0x0  reserved2: 0x0  reserved3: 0x0

Load command segment: name: __LINKEDIT
    vmaddr: 000000000038d000   vmsize: 00000000000ab000
   fileoff: 0000000000348000 filesize: 00000000000aa13c endoff: 00000000003f213c
   nsects: 0   flags: 0

Load command dyld_info:
       rebase: off: 0x00000000  size: 0       
         bind: off: 0x00348000  size: 9976    
    weak bind: off: 0x00000000  size: 0       
    lazy bind: off: 0x00000000  size: 0       
       export: off: 0x0034a6f8  size: 118524  

Load command symtab:
   symoff: 0x003675f4    nsyms:    24641  (endoff: 0x003af900)
   stroff: 0x003b14d4  strsize:   265320  (endoff: 0x003f213c)

Load command dysymtab:
              local symbols: idx:          0  num: 19003    (nxtidx: 19003)
           external symbols: idx:      19003  num: 5080     (nxtidx: 24083)
          undefined symbols: idx:      24083  num: 558      (nxtidx: 24641)
           table of content: off: 0x00000000  num: 0        (endoff: 0x00000000)
               module table: off: 0x00000000  num: 0        (endoff: 0x00000000)
   external reference table: off: 0x00000000  num: 0        (endoff: 0x00000000)
      indirect symbol table: off: 0x003af900  num: 1781     (endoff: 0x003b14d4)
  external relocation table: off: 0x00000000  num: 0        (endoff: 0x00000000)
     local relocation table: off: 0x00000000  num: 0        (endoff: 0x00000000)
  indirect symbols:
  for section __TEXT.__symbol_stub:
...

Load command load_dylinker: /usr/lib/dyld

Load command uuid: ae 62 e3 2e fa 65 31 21 ba 4e bd 81 83 85 f8 a1

Load command unixthread: nflavours: 1
   0: flavour: 0x00000001  offset: 0x000006a0  size: 0x00000040

Load command load_dylib: /sw/lib/libXaw3d.7.dylib
            time stamp: 0x00000002
       current version: 0x00070000
  comptibility version: 0x00070000

Load command load_dylib: /usr/X11/lib/libXmu.6.dylib
            time stamp: 0x00000002
       current version: 0x00090000
  comptibility version: 0x00090000

Load command load_dylib: /usr/X11/lib/libXt.6.dylib
            time stamp: 0x00000002
       current version: 0x00070000
  comptibility version: 0x00070000

Load command load_dylib: /usr/X11/lib/libSM.6.dylib
            time stamp: 0x00000002
       current version: 0x00070000
  comptibility version: 0x00070000

Load command load_dylib: /usr/X11/lib/libICE.6.dylib
            time stamp: 0x00000002
       current version: 0x000a0000
  comptibility version: 0x000a0000

Load command load_dylib: /usr/X11/lib/libX11.6.dylib
            time stamp: 0x00000002
       current version: 0x00090000
  comptibility version: 0x00090000

Load command load_dylib: /usr/X11/lib/libXrender.1.dylib
            time stamp: 0x00000002
       current version: 0x00050000
  comptibility version: 0x00050000

Load command load_dylib: /sw/lib/xft2/lib/libXft.2.dylib
            time stamp: 0x00000002
       current version: 0x00050000
  comptibility version: 0x00050000

Load command load_dylib: /sw/lib/fontconfig2/lib/libfontconfig.1.dylib
            time stamp: 0x00000002
       current version: 0x00060400
  comptibility version: 0x00060000

Load command load_dylib: /sw/lib/freetype219/lib/libfreetype.6.dylib
            time stamp: 0x00000002
       current version: 0x000e0100
  comptibility version: 0x000e0000

Load command load_dylib: /sw/lib/ncurses/libncurses.5.dylib
            time stamp: 0x00000002
       current version: 0x00050000
  comptibility version: 0x00050000

Load command load_dylib: /sw/lib/libotf.0.dylib
            time stamp: 0x00000002
       current version: 0x00010000
  comptibility version: 0x00010000

Load command load_dylib: /sw/lib/libm17n-flt.0.dylib
            time stamp: 0x00000002
       current version: 0x00050000
  comptibility version: 0x00050000

Load command load_dylib: /sw/lib/libm17n-core.0.dylib
            time stamp: 0x00000002
       current version: 0x00050000
  comptibility version: 0x00050000

Load command load_dylib: /usr/lib/libSystem.B.dylib
            time stamp: 0x00000002
       current version: 0x007d020b
  comptibility version: 0x00010000

Segments and Sections:
 #: Segment name     Section name     Address
[Segment __PAGEZERO       0000000000000000-0000000000000fff ---]
[Segment __TEXT           0000000000001000-00000000001b0fff r-x]
01: __TEXT           __text           0000000000002650 0000000000155c63 80000400
02: __TEXT           __text_cold      00000000001582b3 0000000000000761 80000400
03: __TEXT           __text_startup   0000000000158a14 0000000000001339 80000400
04: __TEXT           __symbol_stub    0000000000159d4e 0000000000000c90 80000408
05: __TEXT           __stub_helper    000000000015a9e0 00000000000014fc 80000400
06: __TEXT           __cstring        000000000015bedc 0000000000014683 00000002
07: __TEXT           __const          0000000000170560 0000000000000838 00000000
08: __TEXT           __eh_frame       0000000000170d98 0000000000040268 00000000
[Segment __DATA           00000000001b1000-000000000038cfff rw-]
09: __DATA           __program_vars   00000000001b1000 0000000000000014 00000000
10: __DATA           __nl_symbol_ptr  00000000001b1014 0000000000000b14 00000006
11: __DATA           __la_symbol_ptr  00000000001b1b28 0000000000000860 00000007
12: __DATA           __data           00000000001b2390 00000000001956dc 00000000
13: __DATA           __const          0000000000347a70 0000000000001008 00000000
14: __DATA           __static_data    0000000000348a80 0000000000000031 00000000
15: __DATA           __bss4           0000000000348ac0 0000000000006554 00000001
16: __DATA           __bss2           000000000034f014 000000000002fb68 00000001
17: __DATA           __pu_bss2        000000000037eb7c 0000000000005414 00000001
18: __DATA           __pu_bss4        0000000000383f90 00000000000085e4 00000001
[Segment __LINKEDIT       000000000038d000-0000000000437fff r--]

Sections:
Idx Name          Size      VMA               LMA               File off  Algn
  0 .text         00155c63  00002650  00002650  00001650  2**2
                  CONTENTS, ALLOC, LOAD, CODE
  1 __TEXT.__text_cold 00000761  001582b3  001582b3  001572b3  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  2 __TEXT.__text_startup 00001339  00158a14  00158a14  00157a14  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  3 __TEXT.__symbol_stub 00000c90  00159d4e  00159d4e  00158d4e  2**1
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  4 __TEXT.__stub_helper 000014fc  0015a9e0  0015a9e0  001599e0  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  5 .cstring      00014683  0015bedc  0015bedc  0015aedc  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  6 .const        00000838  00170560  00170560  0016f560  2**4
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
  7 .eh_frame     00040268  00170d98  00170d98  0016fd98  2**3
                  CONTENTS, ALLOC, LOAD, READONLY
  8 __DATA.__program_vars 00000014  001b1000  001b1000  001b0000  2**2
                  CONTENTS, ALLOC, LOAD, DATA
  9 .non_lazy_symbol_ptr 00000b14  001b1014  001b1014  001b0014  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 10 .lazy_symbol_ptr 00000860  001b1b28  001b1b28  001b0b28  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 11 .data         001956dc  001b2390  001b2390  001b1390  2**4
                  CONTENTS, ALLOC, LOAD, DATA
 12 .const_data   00001008  00347a70  00347a70  00346a70  2**4
                  CONTENTS, ALLOC, LOAD, DATA
 13 __DATA.__static_data 00000031  00348a80  00348a80  00347a80  2**4
                  CONTENTS, ALLOC, LOAD, DATA
 14 __DATA.__bss4 00006554  00348ac0  00348ac0  00000000  2**4
                  ALLOC
 15 __DATA.__bss2 0002fb68  0034f014  0034f014  00000000  2**2
                  ALLOC
 16 __DATA.__pu_bss2 00005414  0037eb7c  0037eb7c  00000000  2**2
                  ALLOC
 17 __DATA.__pu_bss4 000085e4  00383f90  00383f90  00000000  2**4
                  ALLOC
 18 LC_THREAD.x86_THREAD_STATE32.0 00000040  00000000  00000000  000006a0  2**0
                  CONTENTS
SYMBOL TABLE:


--
Mit friedvollen Grüßen

  Pete

No project was ever completed on time and within budget. 
                                – Cheops Law
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