at other changes are needed to get a functionality like this into
mainline?
Thank you,
Stefan Dösinger
Index: gcc/configure.ac
===
--- gcc/configure.ac (revision 151348)
+++ gcc/configure.ac (working copy)
@@ -3035,6 +3035,12
Am Thursday 03 September 2009 00:04:43 schrieb Paolo Bonzini:
>> *) The stack alignment code + msvc_prologue is used by Wine on osx though.
>> ...
> I don't think this would prevent the patch from getting the patch in.
Ok, I'll read the patch contribution guidelines again and hope for the best.
I
Am Thursday 03 September 2009 00:04:43 schrieb Paolo Bonzini:
> (define_insn "vswapmov"
> [(set (match_operand 0 "register_operand" "0")
>(match_operand 1 "register_operand" "1")
> (unspec_volatile [] UNSPECV_VSWAPMOV)]
I ran into a problem with this: build/genattrtab doesn't like the emp
Am Friday 04 September 2009 13:47:20 schrieb Paolo Bonzini:
> > I guess the error isn't about the const_int 0, but about operand 0. Any
> > ideas?
>
> Yes, you need this:
>
> [(set (match_operand:SI 0 "register_operand" "=r")
>(match_operand:SI 1 "register_operand" "r"))
> (u
Am Friday 04 September 2009 14:23:39 schrieb Paolo Bonzini:
> The parallel is implicit in define_insn, so it is not different. It
> does not make any harm I guess, but it looks "weird" to a more familiar
> eye. :-)
Ok, I removed it again :-)
> +#ifdef HAVE_AS_IX86_SWAP
> + { "msvc_prologue", 0,
Am Friday 04 September 2009 14:49:42 schrieb Stefan Dösinger:
> I attached another version of the patch - I restarted the compile, so I
> still don't know if it fully works.
Seems to be working - gcc compiles fine, my test function has the right
starting bytes. Wine compiles and runs
Hi,
I tried to install binutils from CVS and the gcc SVN code on my mac to test my
msvc_prologue work there, but I ran into an interesting problem:
When using the SVN gcc with my own as, I cannot compile any files:
Assembler messages:
Fatal error: Invalid listing option `r'
This can happen when
Am Friday 04 September 2009 23:35:55 schrieb Andreas Tobler:
> No, you don't do anything wrong. It is simply not supported, the
> binutils from gnu.
>
> You can rely on gcc being able to work with the MacOS-X 'binutils' aka:
> ld, as. But don't try to build it for yourself. It's somehow like sparc
Am Friday 04 September 2009 23:50:11 schrieb Stefan Dösinger:
> Unfortunately I need support for the swap suffix in as, so using the system
> binaries is not an option. Is the only thing I can do to find the source of
> the as version, backport the swap suffix and hope for the best?
Ok,
Are there non-Microsoft DLLs that expect to be hooked this way? If
so, I think the patch is interesting for gcc independent of whether it
is useful for Wine.
I haven't seen any so far. Its certainly possible some server apps
have the 2 byte nop at the beginning of functions for a similar hot-
Am Saturday 05 September 2009 17:08:19 schrieb Ross Ridge:
> If this patch is essentially only for one application, maybe the idea
> of implementing a more generally useful naked attribute would be the
> way to go. I implemented a naked attribute in my private sources to
> do something similar, al
Ok, Alexandre hasn't changed his opinion, the function attrib is ok with him.
I attached another version of the patch, this time adding some testcases. Two
more questions though:
*) How can I skip the tests if msvc_prologue is not available because as
doesn't support the swap suffix? I think it
Am 25.09.2009 um 07:38 schrieb gerhard gangl:
hallo gcc_team suche gcc zum downloaden
wer kann mir helfen ?
liebe grüße u. danke im vorraus _gerhard_ gangl, reichsstr. 77, 8045
graz
Fast alle Linux Distributionen bringen gcc mit, man muss ihn nur mit
dem Paketmanager installieren. Ansonste
e has it. Does gcc attempt to detect binutils
features, or does it just assume that everything it needs is there?
Thanks for your help,
Stefan Dösinger
gcc.diff
Description: Binary data
> -Original Message-
> From: H.J. Lu [mailto:hjl.to...@gmail.com]
Nice to see a familiar face, or better, mail address :-)
> You need to check assembler feature with autconf before using them.
> See HAVE_AS_IX86_SAHF as example.
Thanks!
Does that look ok? It seems to detect the support
> You can make a new instruction pattern with an UNSPEC_VOLATILE pattern.
> For a quick prototype you could also use an assembler prologue,
> although
> if you need not experiment with different insn sequences, this will
> likely
> be more work in the long run if/when assembler prologues are eventu
> An example of an unspec_volatile instruction pattern in
> config/i386/i386.md
> is "cld".
I ran across that, your hints should give me some information to chew on for
the next hours. Currently I am compiling with this code to see what happens:
(define_insn "movnop"
[(unspec_volatile [(const_int
> >> But since you have to have a new gas anyway, wouldn't it be simpler
> to
> >> have
> >> a new option for gas to instruct it to choose the opcodes that are
> >> expected
> >> by the win32 applications?
> > This was my first idea, but Alexandre Julliard(the Wine maintainer)
> disliked
> > it and
> You don't need to force the frame pointer on, it is sufficient to say
> that
> ebp needs restoring at the end of the function no matter if it looks
> otherwise
> used or not - and you have to take the frame size impact of the saved
> ebp into
> account.
How does this fit together with the stack
> If ebp needs to be saved because it contains a user variable, it is
> better
> not to pop it in the prologue - pop it in the epilogue instead, and you
> don't
> need to have another save/restore.
Sounds reasonable. Is there any flag I can set to make the epilogue pop ebp?
> This can be done wit
Here's some code attached that actually works, but is far from perfect.
The 'msvc_prologue' attribute is limited to 32 bit. None of the applications
that try to place hooks are ported to Win64 yet, so it is impossible to tell
what they'll need. Besides, maybe I am lucky that when they appear I can
> Have you thought about making .s an assembler command-line flag, so
> that
> this flag could be passed automatically by the compiler under mingw?
Yes.
For my purposes it is not really suitable, because we have to make sure that
the push %ebp and mov %esp, %ebp are there, no matter what the compi
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