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GNU Assembler - a surprise on VMS

Philippe Vouters philippe.vouters@laposte.net
Tue Mar 29 13:09:00 GMT 2011 
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$ ias :== $sys$login:iasi64.exe
$ ias -o foo.OBJ "-Milp64" foo.S
Module name: FOO. Module version: V1.0.
Itanium(R) Assembler, v7.0U Version 7.00.4326
Copyright (C) 1985-2002 Intel Corporation. All rights reserved.

$ nm foo.OBJ
0000000000000000 T STF_SPILL
$ as -o foo.OBJ --fatal-warnings -mle foo.S
$ nm foo.OBJ
0000000000000000 a __gnat_vms_display_name@gnat_demangler_rtl
0000000000000000 T stf_spill


Le 29/03/2011 14:41, Tristan Gingold a écrit :
>
>
> On Mar 29, 2011, at 2:34 PM, Philippe Vouters wrote:
>> Tristan,
>>
>> Looks like the as assembler tool is fitted to GNAT Ada Pro ! Where is
>> this __gnat_vms_display_name@gnat_demangler_rtl
>> symbol included in without having GNAT Ada Pro installed ?
>
> Yes, I know this hack is still present. IMHO we should use a pseudo or
a command line
> switch to make it appear.
>
> However, this is a very special symbol to indicate the linker how to
demangle symbols.
> So, this won't create missing references and this is somewhat harmless.
>
> Tristan.
>
>
>>
>> $ as -o foo.OBJ --fatal-warnings "-D" -mle foo.S
>> $ nm foo.OBJ
>> 0000000000000000 a __gnat_vms_display_name@gnat_demangler_rtl
>> 0000000000000000 T stf_spill
>> $ type foo.S
>> .pred.safe_across_calls p1-p5,p16-p63
>> .section .text
>> .proc stf_spill
>> .align 32
>> .global stf_spill
>> stf_spill:
>> .prologue
>> .fframe 0
>> .save ar.pfs, r35
>> alloc loc0 = ar.pfs, 3, 2, 0, 0
>> .save rp, loc1
>> .body
>> cmp.eq p6, p0 = 0,in1
>> cmp.eq p7, p0 = 1,in1
>> cmp.eq p8, p0 = 2, in1
>> ;;
>> (p6) ldfs f8 = [in2]
>> (p7) ldfd f8 = [in2]
>> (p8) ldfe f8 = [in2]
>> ;;
>> stf.spill [in0] = f8
>> br.ret.sptk.many b0
>> ;;
>> .endp stf_spill
>> $
>>
>> - --
>> Philippe Vouters (Fontainebleau/France)
>> URL: http://vouters.dyndns.org/
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>
>
>

- -- 
Philippe Vouters (Fontainebleau/France)
URL: http://vouters.dyndns.org/
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