Re: nvptx-tools and nvptx-newlib (was: The nvptx port [10/11+] Target files)
Hi! On Wed, 4 Feb 2015 10:43:14 +0100, Jakub Jelinek ja...@redhat.com wrote: On Mon, Feb 02, 2015 at 04:32:34PM +0100, Thomas Schwinge wrote: Hi! On Tue, 23 Dec 2014 19:49:35 +0100, I wrote: On Mon, 10 Nov 2014 17:19:57 +0100, Bernd Schmidt ber...@codesourcery.com wrote: The scripts (11/11) I've put up on github, along with a hacked up newlib. These are at [...] They are likely to migrate to MentorEmbedded from bernds, but that had some permissions problems last week. That has recently been done: https://github.com/MentorEmbedded/nvptx-tools and https://github.com/MentorEmbedded/nvptx-newlib are now available. (I'm aware that we still are to write up how to actually build and test all this.) I just updated https://gcc.gnu.org/wiki/Offloading?action=diffrev2=26rev1=25. Can you please update the gmane URLs to corresponding https://gcc.gnu.org/ml/gcc-patches/ URLs? We have our own mailing list archives, no need to use third party ones. It's convenient for me (Message-IDs falls out of my mailer automatically, and Gmane happens to support retrieving message by Message-ID), and the sourceware mailing list archives software doesn't interlink articles between different -MM, which I find rather limiting. OK to check in the following to trunk? Committed to trunk in r220783. --- gcc/config/nvptx/nvptx.opt +++ gcc/config/nvptx/nvptx.opt @@ -17,13 +17,13 @@ ; along with GCC; see the file COPYING3. If not see ; http://www.gnu.org/licenses/. -m64 -Target Report RejectNegative Mask(ABI64) -Generate code for a 64 bit ABI - m32 Target Report RejectNegative InverseMask(ABI64) -Generate code for a 32 bit ABI +Generate code for a 32-bit ABI + +m64 +Target Report RejectNegative Mask(ABI64) +Generate code for a 64-bit ABI I'd expect you want also Negative(m64) on the m32 option and Negative(m32) on the m64 option. +@table @gcctabopt + +@item -m32 +@itemx -m64 +@opindex m32 +@opindex m64 +Generate code for 32-bit or 64-bit ABI. I guess you should mention which one of those is the default (if it isn't configure time configurable). Have taken a note to look into these, later. What about multilibs, is newlib built for both -m32 and -m64, or just the default option? So far, we have concentrated only on the 64-bit x86_64 configuration; 32-bit has several known issues to be resolved. https://gcc.gnu.org/PR65099 filed. Grüße, Thomas signature.asc Description: PGP signature
Re: nvptx-tools and nvptx-newlib (was: The nvptx port [10/11+] Target files)
On Wed, Feb 18, 2015 at 09:50:15AM +0100, Thomas Schwinge wrote: What about multilibs, is newlib built for both -m32 and -m64, or just the default option? So far, we have concentrated only on the 64-bit x86_64 configuration; 32-bit has several known issues to be resolved. https://gcc.gnu.org/PR65099 filed. I meant 64-bit and 32-bit PTX. Jakub
Re: nvptx-tools and nvptx-newlib (was: The nvptx port [10/11+] Target files)
On Mon, Feb 02, 2015 at 04:32:34PM +0100, Thomas Schwinge wrote: Hi! On Tue, 23 Dec 2014 19:49:35 +0100, I wrote: On Mon, 10 Nov 2014 17:19:57 +0100, Bernd Schmidt ber...@codesourcery.com wrote: The scripts (11/11) I've put up on github, along with a hacked up newlib. These are at [...] They are likely to migrate to MentorEmbedded from bernds, but that had some permissions problems last week. That has recently been done: https://github.com/MentorEmbedded/nvptx-tools and https://github.com/MentorEmbedded/nvptx-newlib are now available. (I'm aware that we still are to write up how to actually build and test all this.) I just updated https://gcc.gnu.org/wiki/Offloading?action=diffrev2=26rev1=25. Can you please update the gmane URLs to corresponding https://gcc.gnu.org/ml/gcc-patches/ URLs? We have our own mailing list archives, no need to use third party ones. OK to check in the following to trunk? --- gcc/config/nvptx/nvptx.opt +++ gcc/config/nvptx/nvptx.opt @@ -17,13 +17,13 @@ ; along with GCC; see the file COPYING3. If not see ; http://www.gnu.org/licenses/. -m64 -Target Report RejectNegative Mask(ABI64) -Generate code for a 64 bit ABI - m32 Target Report RejectNegative InverseMask(ABI64) -Generate code for a 32 bit ABI +Generate code for a 32-bit ABI + +m64 +Target Report RejectNegative Mask(ABI64) +Generate code for a 64-bit ABI I'd expect you want also Negative(m64) on the m32 option and Negative(m32) on the m64 option. +@table @gcctabopt + +@item -m32 +@itemx -m64 +@opindex m32 +@opindex m64 +Generate code for 32-bit or 64-bit ABI. I guess you should mention which one of those is the default (if it isn't configure time configurable). What about multilibs, is newlib built for both -m32 and -m64, or just the default option? Jakub
Re: nvptx-tools and nvptx-newlib (was: The nvptx port [10/11+] Target files)
Hi!
On Tue, 23 Dec 2014 19:49:35 +0100, I wrote:
On Mon, 10 Nov 2014 17:19:57 +0100, Bernd Schmidt ber...@codesourcery.com
wrote:
The scripts (11/11) I've put up on github, along with a hacked up
newlib. These are at [...]
They are likely to migrate to MentorEmbedded from bernds, but that had
some permissions problems last week.
That has recently been done:
https://github.com/MentorEmbedded/nvptx-tools and
https://github.com/MentorEmbedded/nvptx-newlib are now available.
(I'm aware that we still are to write up how to actually build and test
all this.)
I just updated
https://gcc.gnu.org/wiki/Offloading?action=diffrev2=26rev1=25.
OK to check in the following to trunk?
commit a0c73cb76d1f13642df7725d64bc618ee0909abc
Author: Thomas Schwinge tho...@codesourcery.com
Date: Mon Feb 2 16:29:36 2015 +0100
Begin documenting the nvptx backend.
gcc/
* doc/install.texi (nvptx-*-none): New section.
* doc/invoke.texi (Nvidia PTX Options): Likewise.
* config/nvptx/nvptx.opt: Update.
---
gcc/config/nvptx/nvptx.opt | 10 +-
gcc/doc/install.texi | 23 +++
gcc/doc/invoke.texi| 26 ++
3 files changed, 54 insertions(+), 5 deletions(-)
diff --git gcc/config/nvptx/nvptx.opt gcc/config/nvptx/nvptx.opt
index 1448dfc..249a61d 100644
--- gcc/config/nvptx/nvptx.opt
+++ gcc/config/nvptx/nvptx.opt
@@ -17,13 +17,13 @@
; along with GCC; see the file COPYING3. If not see
; http://www.gnu.org/licenses/.
-m64
-Target Report RejectNegative Mask(ABI64)
-Generate code for a 64 bit ABI
-
m32
Target Report RejectNegative InverseMask(ABI64)
-Generate code for a 32 bit ABI
+Generate code for a 32-bit ABI
+
+m64
+Target Report RejectNegative Mask(ABI64)
+Generate code for a 64-bit ABI
mmainkernel
Target Report RejectNegative
diff --git gcc/doc/install.texi gcc/doc/install.texi
index c9e3bf1..b31f9b6 100644
--- gcc/doc/install.texi
+++ gcc/doc/install.texi
@@ -3302,6 +3302,8 @@ information have to.
@item
@uref{#nds32be-x-elf,,nds32be-*-elf}
@item
+@uref{#nvptx-x-none,,nvptx-*-none}
+@item
@uref{#powerpc-x-x,,powerpc*-*-*}
@item
@uref{#powerpc-x-darwin,,powerpc-*-darwin*}
@@ -4269,6 +4271,27 @@ Andes NDS32 target in big endian mode.
@html
hr /
@end html
+@anchor{nvptx-x-none}
+@heading nvptx-*-none
+Nvidia PTX target.
+
+Instead of GNU binutils, you will need to install
+@uref{https://github.com/MentorEmbedded/nvptx-tools/,,nvptx-tools}.
+Tell GCC where to find it:
+@option{--with-build-time-tools=[install-nvptx-tools]/nvptx-none/bin}.
+
+A nvptx port of newlib is available at
+@uref{https://github.com/MentorEmbedded/nvptx-newlib/,,nvptx-newlib}.
+It can be automatically built together with GCC@. For this, add a
+symbolic link to nvptx-newlib's @file{newlib} directory to the
+directory containing the GCC sources.
+
+Use the @option{--disable-sjlj-exceptions} and
+@option{--enable-newlib-io-long-long} options when configuring.
+
+@html
+hr /
+@end html
@anchor{powerpc-x-x}
@heading powerpc-*-*
You can specify a default version for the @option{-mcpu=@var{cpu_type}}
diff --git gcc/doc/invoke.texi gcc/doc/invoke.texi
index ba81ec7..1fb329e 100644
--- gcc/doc/invoke.texi
+++ gcc/doc/invoke.texi
@@ -840,6 +840,9 @@ Objective-C and Objective-C++ Dialects}.
-mcustom-fpu-cfg=@var{name} @gol
-mhal -msmallc -msys-crt0=@var{name} -msys-lib=@var{name}}
+@emph{Nvidia PTX Options}
+@gccoptlist{-m32 -m64 -mmainkernel}
+
@emph{PDP-11 Options}
@gccoptlist{-mfpu -msoft-float -mac0 -mno-ac0 -m40 -m45 -m10 @gol
-mbcopy -mbcopy-builtin -mint32 -mno-int16 @gol
@@ -11967,6 +11970,7 @@ platform.
* MSP430 Options::
* NDS32 Options::
* Nios II Options::
+* Nvidia PTX Options::
* PDP-11 Options::
* picoChip Options::
* PowerPC Options::
@@ -18277,6 +18281,28 @@ This option is typically used to link with a library
provided by a HAL BSP.
@end table
+@node Nvidia PTX Options
+@subsection Nvidia PTX Options
+@cindex Nvidia PTX options
+@cindex nvptx options
+
+These options are defined for Nvidia PTX:
+
+@table @gcctabopt
+
+@item -m32
+@itemx -m64
+@opindex m32
+@opindex m64
+Generate code for 32-bit or 64-bit ABI.
+
+@item -mmainkernel
+@opindex mmainkernel
+Link in code for a __main kernel. This is for stand-alone instead of
+offloading execution.
+
+@end table
+
@node PDP-11 Options
@subsection PDP-11 Options
@cindex PDP-11 Options
Grüße,
Thomas
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