https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #9 from Stas Sergeev ---
(In reply to H.J. Lu from comment #6)
> Please provide pre-processed dpmi.c from gcc -E and command-line
> options to generate dpmi.s
gcc -xc -S -fverbose-asm -O -o dpmi.s dpmi.E
gcc version 7.3.0 (Ubuntu
https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #8 from Stas Sergeev ---
Created attachment 11381
--> https://sourceware.org/bugzilla/attachment.cgi?id=11381=edit
preprocessed output
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https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #7 from Stas Sergeev ---
Created attachment 11379
--> https://sourceware.org/bugzilla/attachment.cgi?id=11379=edit
verbose asm
> Please provide pre-processed dpmi.c from gcc -E and command-line
> options to generate dpmi.s
https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #6 from H.J. Lu ---
Please provide pre-processed dpmi.c from gcc -E and command-line
options to generate dpmi.s
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https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #5 from Stas Sergeev ---
Basically this code calculates the distance
between "DPMI_return_from_realmode" and "DPMI_dummy_start",
and puts the result into a 16bit variable.
That explains the use of %ax. Its possible because
those
https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #4 from Stas Sergeev ---
(In reply to H.J. Lu from comment #3)
> do_dpmi_int has
Ah, I see now what you mean.
> 8f69: 8b 83 00 00 00 00 mov0x0(%ebx),%eax 8f6b:
> R_386_GOT32X DPMI_return_from_realmode
>
https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #3 from H.J. Lu ---
(In reply to Stas Sergeev from comment #2)
> (In reply to H.J. Lu from comment #1)
> > dpmi.o has:
> >
> > 8f69: 8b 83 00 00 00 00 mov0x0(%ebx),%eax 8f6b:
> > R_386_GOT32X
https://sourceware.org/bugzilla/show_bug.cgi?id=23854
--- Comment #2 from Stas Sergeev ---
(In reply to H.J. Lu from comment #1)
> dpmi.o has:
>
> 8f69: 8b 83 00 00 00 00 mov0x0(%ebx),%eax 8f6b:
> R_386_GOT32X DPMI_return_from_realmode
> 8f6f: 66 05 00 48
https://sourceware.org/bugzilla/show_bug.cgi?id=23854
H.J. Lu changed:
What|Removed |Added
Status|UNCONFIRMED |WAITING
Last reconfirmed|
