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RE: [Axiom-developer] RE: gcl-2.6.8pre on MAC OSX 10.2


From: Bill Page
Subject: RE: [Axiom-developer] RE: gcl-2.6.8pre on MAC OSX 10.2
Date: Tue, 24 Oct 2006 09:10:36 -0400

Camm,

I am sorry to have distracted you with my quesition about dylib... ;)

On October 24, 2006 12:11 AM you wrote:
> 
> I think the issue is whether there is an srget in plt.h.  We want some
> entry therein to generate a U ___srget in plt.o and thereby a T
> ___srget in raw_pre_gcl.  Then we want this entry to be generated by
> code in plttest.c passed thruogh the awk and grep in o/makefile.
> 
> Can you post plt.h, nm plttest.o and nm plt.o please?
> 

Please see my previous email displaying plt.h which shows that
__srget is generated by plttest.c and is present in the header file.

> ppc-osx3:~/osx/new/gcl-2.6.8pre $ cat o/plt.h
> MY_PLT(__srget),
> MY_PLT(__swbuf),
> MY_PLT(acos),
> MY_PLT(acosh),
> MY_PLT(asin),
> MY_PLT(asinh),
> MY_PLT(atan),
> MY_PLT(atanh),
> MY_PLT(cos),
> MY_PLT(cosh),
> MY_PLT(exp),
> MY_PLT(log),
> MY_PLT(setjmp),
> MY_PLT(sin),
> MY_PLT(sinh),
> MY_PLT(tan),
> MY_PLT(tanh)
> 
> --------

Here are also the ouputs of nm. Note presence of ___srget in
both object files:

ppc-osx3:~/osx/new/gcl-2.6.8pre $ nm o/plt.o
         U _Cnil_body
         U _Dotnil_body
         U _FEerror
         U _FEwrong_type_argument
         U _FIXtemp
         U ___srget
         U ___swbuf
         U _acos
         U _acosh
00000670 t _arsearch
000005f0 t _arsort
         U _asin
         U _asinh
         U _atan
         U _atanh
         U _bsearch
00000004 C _car_or_cdr
00000004 C _casefun
         U _cos
         U _cosh
         U _exp
         U _fSmake_vector1_1
         U _fclose
         U _fgets
         U _fopen
         U _kcl_self
00000004 C _kf
         U _log
         U _make_cons
         U _make_fixnum1
         U _make_simple_string
         U _memchr
         U _memcmp
000006e8 d _mplt
000004f8 T _my_plt
00000000 T _parse_plt
000005c4 t _pltcomp
         U _qsort
         U _sLlist
00000004 C _sSAplt_tableA
00000770 d _s_my_dot.0
0000077c d _s_my_dot.1
         U _setjmp
         U _sin
         U _sinh
         U _small_fixnum_table
         U _snprintf
         U _sscanf
         U _stat
         U _strcmp
         U _strcpy
         U _strlen
         U _strncmp
         U _tan
         U _tanh
00000004 C _tf
         U _unlink
         U dyld_stub_binding_helper
ppc-osx3:~/osx/new/gcl-2.6.8pre $

ppc-osx3:~/osx/new/gcl-2.6.8pre $ nm o/plttest.o
         U ___srget
         U ___swbuf
         U _acos
         U _acosh
         U _asin
         U _asinh
         U _atan
         U _atanh
         U _cos
         U _cosh
         U _exp
         U _log
00000000 T _main
         U _setjmp
         U _sin
         U _sinh
         U _tan
         U _tanh
         U dyld_stub_binding_helper
         U restFP
         U saveFP
ppc-osx3:~/osx/new/gcl-2.6.8pre $

Regards,
Bill Page.


> -----Original Message-----
> From: 
> address@hidden
> .org 
> [mailto:axiom-developer-bounces+bill.page1=synthesis.anikast.c
> address@hidden On Behalf Of Bill Page
> Sent: October 23, 2006 9:52 PM
> To: 'Camm Maguire'
> Cc: address@hidden; address@hidden
> Subject: [Axiom-developer] RE: gcl-2.6.8pre on MAC OSX 10.2
> 
> 
> On October 23, 2006 3:53 PM Camm Maguire wrote:
> > > ... 
> > > But I see the this symbol *is* known to the gcl image.
> > > 
> > > ppc-osx3:~/osx/new/gcl-2.6.8pre $ nm unixport/saved_gcl | 
> grep srget
> > >          U ___srget
> > > 
> > > What is wrong?
> > > 
> > 
> > Here is says that saved_gcl *uses* the symbol, but does not provide
> > it.  We need T ___srget.
> >
> 
> Aha. No "__srget" symbol defined in the gcl image? Isn't it strange?
>  
> > Was our patch to o/makefile designed to remove ___srget from plt.h?
> > If so, this is the culprit.  What was the reason if this is 
> the case?
> 
> No, only saveFP and restFP are removed because the linker complains
> that the symbols are not used in the context of a function. It is
> not clear to me why this is not also a problem on other platforms
> nor exactly what these symbols are for. Although this helps:
> 
> http://www.astro.gla.ac.uk/users/norman/note/2004/restFP
> 
> "In particular, the Apple GCC produces object code which includes
> references to the restFP and saveFP symbols, which refer to assembler
> routines which manipulate the floating-point state of the processor."
> 
> ...
> 
> "The restFP and saveFP functions are defined in Apple's libgcc, and
> so the fix is simply to include this library in your link line. The
> best way of doing this is to include the option
>   -lcc_dynamic
> in your link line."
> 
> Maybe we need this?
> 
> > If not, we need to add code to plttest.c to get these symbols into
> > plt.h.  If this makes any sense to you and you can tell me which
> > is the case, we can proceed from here.
> >
> 
> I have a vague understanding of the purpose of plttest.c and plt.h
> from the comments in the source about what this is supposed to do.
> 
> Here is the contents of plt.h:
> 
> ppc-osx3:~/osx/new/gcl-2.6.8pre $ cat o/plt.h
> MY_PLT(__srget),
> MY_PLT(__swbuf),
> MY_PLT(acos),
> MY_PLT(acosh),
> MY_PLT(asin),
> MY_PLT(asinh),
> MY_PLT(atan),
> MY_PLT(atanh),
> MY_PLT(cos),
> MY_PLT(cosh),
> MY_PLT(exp),
> MY_PLT(log),
> MY_PLT(setjmp),
> MY_PLT(sin),
> MY_PLT(sinh),
> MY_PLT(tan),
> MY_PLT(tanh)
> 
> --------
> 
> You will note that "__srget" (two underscores) is present.
>  
> > The idea is that raw_gcl needs its own symbol for every symol that
> > can be written by the compiler/gcc into an object file to be loaded.
> > If symbols are in external libraries, e.g. cos() in libm, 
> GCL compiles
> > in its own reference by taking the address in C
> > 
> > void *ref=cos;
> > 
> > This forces ldd to make a plt table, en effective trampoline, which
> > will be properly relocated at runtime by ld.so.  Jumping to this
> > trampoline is sufficient to get us to where we need to go.  
> >
> 
> Thanks for the explanation.
> 
> Note that __srget is not defined in an external library but rather
> in the /usr/include/stdio.h:
> 
> ppc-osx3:~/osx/new/gcl-2.6.8pre $ grep srget /usr/include/stdio.h
> int     __srget __P((FILE *));
> #define __sgetc(p) (--(p)->_r < 0 ? __srget(p) : (int)(*(p)->_p++))
> ppc-osx3:~/osx/new/gcl-2.6.8pre $
> 
> ------
> 
> Is that significant? Does that affect how gcl should look for this
> symbol?
>  
> > We also have an additional mechanism to parse the raw_map file to
> > look at the plt table explicitly if present.  This is not very
> > portable, but the results are in si::*plt-table*.
> > 
> 
> I get:
> 
> ppc-osx3:~/osx/new/gcl-2.6.8pre $ gcl
> GCL (GNU Common Lisp)  2.6.8 CLtL1    Oct 18 2006 15:24:28
> Source License: LGPL(gcl,gmp), GPL(unexec,bfd,xgcl)
> Binary License:  GPL due to GPL'ed components: (BFD UNEXEC)
> Modifications of this banner must retain notice of a 
> compatible license
> Dedicated to the memory of W. Schelter
> 
> Use (help) to get some basic information on how to use GCL.
> Temporary directory for compiler files set to /tmp/
> 
> >si::*plt-table*
> 
> NIL
> 
> >
> 
> ----------
> 
> >...
> >
> > > > > Writing segment __DATA           at   0x5f8000 -   0x5f8000 
> > > > (sz:          0)
> > > > > WGCL (GNU Common Lisp)  April 1994  131072 pages
> > > > > 
> > > >
> > > > Does this stop here?  Or do you see "Initializing ...." as in
> > > > your compiler::link output below?
> > > >
> > > 
> > > It stops there.
> > 
> > OK, this is definitely strange.  Could you please 
> >
> > (trace system open delete-file)
> >
> > before the compiler::link and send me the output.
> 
> Did you mean before the save-system command?
> 
> First here is the output from compiler::link
> 
> -------
> 
> ppc-osx3:~/osx/new/gcl-2.6.8pre $ echo '(trace system open 
> delete-file)
> (compiler::link nil "bar") (quit)' | gcl | more
> 
> GCL (GNU Common Lisp)  2.6.8 CLtL1    Oct 18 2006 15:24:28
> Source License: LGPL(gcl,gmp), GPL(unexec,bfd,xgcl)
> Binary License:  GPL due to GPL'ed components: (BFD UNEXEC)
> Modifications of this banner must retain notice of a 
> compatible license
> Dedicated to the memory of W. Schelter
> 
> Use (help) to get some basic information on how to use GCL.
> Temporary directory for compiler files set to /tmp/
> 
> >
> Warning: SYSTEM is being redefined.
> Warning: OPEN is being redefined.
> Warning: DELETE-FILE is being redefined.
> (SYSTEM OPEN DELETE-FILE)
> 
> >
>   1> (OPEN #p"./user-init.c" :DIRECTION :OUTPUT)
>   <1 (OPEN #<output stream "./user-init.c">)
>   1> (SYSTEM "gcc -no-cpp-precomp -c -Wall -DVOL=volatile 
> -fsigned-char
> -pipe -I
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../h  -O3
> -fomit-frame-poin
> ter -c \"./user-init.c\" -o \"./user-init.o\" -w")
>   <1 (SYSTEM 0 0)
>   1> (DELETE-FILE #p"./user-init.c")
>   <1 (DELETE-FILE T)
>   1> (OPEN "./raw_bar_map" :DIRECTION :OUTPUT)
>   <1 (OPEN #<output stream "./raw_bar_map">)
>   1> (SYSTEM "gcc -no-cpp-precomp -o  ./raw_bar ./user-init.o
> -L/home/users/b/b
> i/billpage/osx/lib/gcl-2.6.8/unixport/     -lgcl -lm  -lc -lgclp  ")
>   <1 (SYSTEM 0 0)
>   1> (DELETE-FILE #p"./user-init.o")
>   <1 (DELETE-FILE T)
>   1> (OPEN #p"init_bar.lsp" :DIRECTION :OUTPUT)
>   <1 (OPEN #<output stream "init_bar.lsp">)
>   1> (OPEN
> "/home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/init_gcl.lsp")
>   <1 (OPEN #<input stream
> "/home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/
> init_gcl.lsp">)
>   1> (SYSTEM "./raw_bar
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/ <
> init_bar.lsp")
> GCL (GNU Common Lisp)  April 1994  131072 pages
> Building symbol table for
> /private/automount/home/users/b/bi/billpage/osx/new/gc
> l-2.6.8pre/raw_bar.tmp ..
> loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../lsp/gc
> l_export.l
> sp
> Initializing gcl_defmacro.o
> Initializing gcl_evalmacros.o
> Initializing gcl_top.o
> Initializing gcl_module.o
> loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../lsp/gc
> l_autoload
> .lsp
> 
> >
> NIL
> 
> >
> #<"COMPILER" package>
> 
> >
> #<"SLOOP" package>
> 
> >
> #<"SERROR" package>
> 
> >
> #<"ANSI-LOOP" package>
> 
> >
> #<"DEFPACKAGE" package>
> 
> >
> #<"TK" package>
> 
> >
> #<"SYSTEM" package>
> 
> SYSTEM>
> *COMMAND-ARGS*
> 
> SYSTEM>Initializing gcl_predlib.o
> Initializing gcl_setf.o
> Initializing gcl_arraylib.o
> Initializing gcl_assert.o
> Initializing gcl_defstruct.o
> Initializing gcl_describe.o
> Initializing gcl_iolib.o
> Initializing gcl_listlib.o
> Initializing gcl_mislib.o
> Initializing gcl_numlib.o
> Initializing gcl_packlib.o
> Initializing gcl_seq.o
> Initializing gcl_seqlib.o
> Initializing gcl_trace.o
> Initializing gcl_sloop.o
> Initializing gcl_serror.o
> Initializing gcl_destructuring_bind.o
> Initializing gcl_loop.o
> Initializing gcl_defpackage.o
> Initializing gcl_make_defpackage.o
> Initializing gcl_cmpinline.o
> Initializing gcl_cmputil.o
> Initializing gcl_debug.o
> Initializing gcl_info.o
> Initializing gcl_cmptype.o
> Initializing gcl_cmpbind.o
> Initializing gcl_cmpblock.o
> Initializing gcl_cmpcall.o
> Initializing gcl_cmpcatch.o
> Initializing gcl_cmpenv.o
> Initializing gcl_cmpeval.o
> Initializing gcl_cmpflet.o
> Initializing gcl_cmpfun.o
> Initializing gcl_cmpif.o
> Initializing gcl_cmplabel.o
> Initializing gcl_cmplam.o
> Initializing gcl_cmplet.o
> Initializing gcl_cmploc.o
> Initializing gcl_cmpmap.o
> Initializing gcl_cmpmulti.o
> Initializing gcl_cmpspecial.o
> Initializing gcl_cmptag.o
> Initializing gcl_cmptop.o
> Initializing gcl_cmpvar.o
> Initializing gcl_cmpvs.o
> Initializing gcl_cmpwt.o
> 
> Loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../lsp/sy
> s-proclaim
> .lisp
> Finished loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../lsp/sys
> -proclaim.lisp
> Loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../cmpnew
> /sys-procl
> aim.lisp
> Finished loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../cmpnew/
> sys-proclaim.lisp
> Loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../gcl-tk
> /tk-packag
> e.lsp
> Finished loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../gcl-tk/
> tk-package.lsp
> Loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../cmpnew
> /gcl_cmpma
> in.lsp
> Warning: COMPILE-FILE is being redefined.
> Warning: COMPILE is being redefined.
> Warning: DISASSEMBLE is being redefined.
> Finished loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../cmpnew/
> gcl_cmpmain.lsp
> Loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../lsp/gc
> l_auto_new
> .lsp
> Finished loading
> /home/users/b/bi/billpage/osx/lib/gcl-2.6.8/unixport/../lsp/gcl
> _auto_new.lsp
> 
> T
> 
> >DBEGIN:          0x1c7000
> mach_mapstart:   0x5f5000
> heap_end:        0xb09000
> core_end:        0xb0a000
> mach_brkpt:     0x57df000
> mach_maplimit: 0x201c7000
> --- List of All Regions ---
>    address       size prot maxp zone_name
>          0     0x1000 none none (no zone)
>     0x1000   0x1c6000 r x  rwx  (no zone)
>   0x1c7000   0x42e000 rw   rwx  (no zone)
>   0x5f5000 0x1fbd2000 rwx  rwx  (no zone)
> --- List of Regions to be Dumped ---
>    address       size prot maxp zone_name
>          0     0x1000 none none (no zone)
>     0x1000   0x1c6000 r x  rwx  (no zone)
>   0x1c7000   0x42e000 rw   rwx  (no zone)
>   0x5f5000 0x1fbd2000 rwx  rwx  (no zone)
> --- Header Information ---
> Magic      = 0xfeedface
> CPUType    = 18
> CPUSubType = 0
> FileType   = 0x2
> NCmds      = 11
> SizeOfCmds = 1744
> Flags      = 0x00000085
> Highest address of load commands in input file:   0x2032c000
> Lowest offset of all sections in __TEXT segment:     0x1658
> --- List of Load Commands in Input File ---
> no cmd                 cmdsize name                address       size
>  0 LC_SEGMENT             0x38 __PAGEZERO                0     0x1000
>  1 LC_SEGMENT            0x258 __TEXT               0x1000   0x1c6000
>                                __text               0x2658   0x1ab044
>                                __picsymbol_stub   0x1ad69c     0x18e4
>                                __symbol_stub      0x1aef80          0
>                                __cstring          0x1aef80    0x15f5c
>                                __literal4         0x1c4edc       0x18
>                                __literal8         0x1c4ef8      0x108
>                                __const            0x1c5000     0x1f9c
>                                __eh_frame         0x1c6f9c       0x60
>  2 LC_SEGMENT            0x214 __DATA             0x1c7000   0x42e000
>                                __data             0x1c7000     0xaec4
>                                __la_symbol_ptr    0x1d1ec4      0x2c4
>                                __nl_symbol_ptr    0x1d2188      0x9c8
>                                __dyld             0x1d2b50       0x1c
>                                __const            0x1d2b6c     0x2748
>                                __bss              0x1d52b8     0x8f28
>                                __common           0x1de1e0   0x416d58
>  3 LC_SEGMENT             0x7c __DATA             0x5f5000 0x1fbd2000
>                                __data             0x5f5000          0
>  4 LC_SEGMENT             0x38 __LINKEDIT       0x201c7000   0x165000
>  5 LC_LOAD_DYLINKER       0x1c
>  6 LC_LOAD_DYLIB          0x34
>  7 LC_SYMTAB              0x18
>  8 LC_DYSYMTAB            0x50
>  9 LC_TWOLEVEL_HINTS      0x10
> 10 LC_UNIXTHREAD          0xb0
> --- Load Commands written to Output File ---
> Writing segment __PAGEZERO       at          0 -          0 
> (sz:          0)
> Writing segment __TEXT           at          0 -   0x1c6000 
> (sz:   0x1c6000)
> Writing segment __DATA           at   0x1c6000 -   0x5f4000 
> (sz:   0x42e000)
>         section __data           at   0x1c6000 -   0x1d0ec4 
> (sz:     0xaec4)
>         section __la_symbol_ptr  at   0x1d0ec4 -   0x1d1188 
> (sz:      0x2c4)
>         section __nl_symbol_ptr  at   0x1d1188 -   0x1d1b50 
> (sz:      0x9c8)
>         section __dyld           at   0x1d1b50 -   0x1d1b6c 
> (sz:       0x1c)
>         section __const          at   0x1d1b6c -   0x1d42b4 
> (sz:     0x2748)
>         section __bss            at   0x1d42b8 -   0x1dd1e0 
> (sz:     0x8f28)
>         section __common         at   0x1dd1e0 -   0x5f3f38 
> (sz:   0x416d58)
> Writing segment __DATA           at   0x5f4000 -   0xb09000 
> (sz:   0x515000)
> Writing segment __LINKEDIT       at   0xb09000 -   0xc6d1d4 
> (sz:   0x1641d4)
> Writing LC_LOAD_DYLINKER  command
> Writing LC_LOAD_DYLIB     command
> Writing LC_SYMTAB         command
> Fixed up 0/17 external relocation entries in data segment.
> Writing LC_DYSYMTAB       command
> Writing LC_TWOLEVEL_HINTS command
> Writing LC_UNIXTHREAD     command
> 3948 unused bytes follow Mach-O header
>   <1 (SYSTEM 0 0)
>   1> (DELETE-FILE #p"./raw_bar")
>   <1 (DELETE-FILE T)
>   1> (DELETE-FILE #p"init_bar.lsp")
>   <1 (DELETE-FILE T)
> "bar"
> 
> >
> 
> ---------
> 
> Maybe the anomally that you were worried about is not displayed
> above? I am not sure what you are looking for.
> 
> Here is the same output from save-system:
> 
> ---------
> 
> ppc-osx3:~/osx/new/gcl-2.6.8pre $ echo '(trace system open 
> delete-file)
> (si::save-system "foo") (quit)' | gcl | more
> 
> GCL (GNU Common Lisp)  2.6.8 CLtL1    Oct 18 2006 15:24:28
> Source License: LGPL(gcl,gmp), GPL(unexec,bfd,xgcl)
> Binary License:  GPL due to GPL'ed components: (BFD UNEXEC)
> Modifications of this banner must retain notice of a 
> compatible license
> Dedicated to the memory of W. Schelter
> 
> Use (help) to get some basic information on how to use GCL.
> Temporary directory for compiler files set to /tmp/
> 
> >
> Warning: SYSTEM is being redefined.
> Warning: OPEN is being redefined.
> Warning: DELETE-FILE is being redefined.
> (SYSTEM OPEN DELETE-FILE)
> 
> >DBEGIN:          0x1c7000
> mach_mapstart:   0x5f5000
> heap_end:        0xb0c000
> core_end:        0xb0d000
> mach_brkpt:     0xe737000
> mach_maplimit: 0x201c7000
> --- List of All Regions ---
>    address       size prot maxp zone_name
>          0     0x1000 none none (no zone)
>     0x1000   0x1c6000 r x  rwx  (no zone)
>   0x1c7000   0x42e000 rw   rwx  (no zone)
>   0x5f5000   0x517000 rwx  rwx  (no zone)
>   0xb0c000 0x1f6bb000 rwx  rwx  (no zone)
> --- List of Regions to be Dumped ---
>    address       size prot maxp zone_name
>          0     0x1000 none none (no zone)
>     0x1000   0x1c6000 r x  rwx  (no zone)
>   0x1c7000   0x42e000 rw   rwx  (no zone)
>   0x5f5000 0x1fbd2000 rwx  rwx  (no zone)
> --- Header Information ---
> Magic      = 0xfeedface
> CPUType    = 18
> CPUSubType = 0
> FileType   = 0x2
> NCmds      = 11
> SizeOfCmds = 1744
> Flags      = 0x00000085
> Highest address of load commands in input file:   0x5fad0000
> Lowest offset of all sections in __TEXT segment:      0x6f8
> --- List of Load Commands in Input File ---
> no cmd                 cmdsize name                address       size
>  0 LC_SEGMENT             0x38 __PAGEZERO                0     0x1000
>  1 LC_SEGMENT            0x258 __TEXT               0x1000   0x1c6000
>                                __text               0x16f8   0x1aafc8
>                                __picsymbol_stub   0x1ac6c0     0x18e4
>                                __symbol_stub      0x1adfa4          0
>                                __cstring          0x1adfa4    0x15f5c
>                                __literal4         0x1c3f00       0x18
>                                __literal8         0x1c3f18      0x108
>                                __const            0x1c4020     0x1f9c
>                                __eh_frame         0x1c5fbc       0x60
>  2 LC_SEGMENT            0x214 __DATA             0x1c7000   0x42e000
>                                __data             0x1c7000     0xaec4
>                                __la_symbol_ptr    0x1d1ec4      0x2c4
>                                __nl_symbol_ptr    0x1d2188      0x9c8
>                                __dyld             0x1d2b50       0x1c
>                                __const            0x1d2b6c     0x2748
>                                __bss              0x1d52b8     0x8f28
>                                __common           0x1de1e0   0x416d68
>  3 LC_SEGMENT             0x7c __DATA             0x5f5000 0x1fbd2000
>                                __data             0x5f5000   0x517000
>  4 LC_SEGMENT             0x38 __LINKEDIT       0x5f96b000   0x165000
>  5 LC_LOAD_DYLINKER       0x1c
>  6 LC_LOAD_DYLIB          0x34
>  7 LC_SYMTAB              0x18
>  8 LC_DYSYMTAB            0x50
>  9 LC_TWOLEVEL_HINTS      0x10
> 10 LC_UNIXTHREAD          0xb0
> --- Load Commands written to Output File ---
> Writing segment __PAGEZERO       at          0 -          0 
> (sz:          0)
> Writing segment __TEXT           at          0 -   0x1c6000 
> (sz:   0x1c6000)
> Writing segment __DATA           at   0x1c6000 -   0x5f4000 
> (sz:   0x42e000)
>         section __data           at   0x1c6000 -   0x1d0ec4 
> (sz:     0xaec4)
>         section __la_symbol_ptr  at   0x1d0ec4 -   0x1d1188 
> (sz:      0x2c4)
>         section __nl_symbol_ptr  at   0x1d1188 -   0x1d1b50 
> (sz:      0x9c8)
>         section __dyld           at   0x1d1b50 -   0x1d1b6c 
> (sz:       0x1c)
>         section __const          at   0x1d1b6c -   0x1d42b4 
> (sz:     0x2748)
>         section __bss            at   0x1d42b8 -   0x1dd1e0 
> (sz:     0x8f28)
>         section __common         at   0x1dd1e0 -   0x5f3f48 
> (sz:   0x416d68)
> Writing segment __DATA           at   0x5f4000 -   0xb0c000 
> (sz:   0x518000)
> Writing segment __LINKEDIT       at  0x1538000 -  0x169c1c0 
> (sz:   0x1641c0)
> Writing LC_LOAD_DYLINKER  command
> Writing LC_LOAD_DYLIB     command
> Writing LC_SYMTAB         command
> Fixed up 0/17 external relocation entries in data segment.
> Writing LC_DYSYMTAB       command
> Writing LC_TWOLEVEL_HINTS command
> Writing LC_UNIXTHREAD     command
> 12 unused bytes follow Mach-O header
> 
> --------
> 
> Note: no initializing in the above output from save-system.
> 
> > ...
> 
> Regards,
> Bill Page.
> 
> 
> 
> 
> _______________________________________________
> Axiom-developer mailing list
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> 
> 






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