Re: [PATCH 1/4] Add mkoffload for Intel MIC

[Thomas Schwinge <thomas at codesourcery dot com>]

Hi!

On Mon, 22 Dec 2014 12:28:20 +0100, Jakub Jelinek <jakub@redhat.com> wrote:
> On Mon, Dec 22, 2014 at 12:25:32PM +0100, Thomas Schwinge wrote:
> > On Wed, 22 Oct 2014 22:57:01 +0400, Ilya Verbin <iverbin@gmail.com> wrote:
> > > --- /dev/null
> > > +++ b/gcc/config/i386/intelmic-mkoffload.c
> > > @@ -0,0 +1,541 @@
> > > +/* Offload image generation tool for Intel MIC devices.
> > 
> > > +/* Shows if we should compile binaries for i386 instead of x86-64.  */
> > > +bool target_ilp32 = false;
> > 
> > My linker defaults to 32-bit x86, so I explicitly have to switch to
> > 64-bit x86_64 mode; OK to commit the following, to always explicitly
> > specify what is wanted?
> > 
> >  gcc/config/i386/intelmic-mkoffload.c | 12 ++++++++----
> >  1 file changed, 8 insertions(+), 4 deletions(-)
> 
> Ok with proper ChangeLog entry.

Committed to trunk in r219345:

commit c049b358f961f72d0c0cf61a707e9a5855b12b28
Author: tschwinge <tschwinge@138bc75d-0d04-0410-961f-82ee72b054a4>
Date:   Thu Jan 8 14:58:45 2015 +0000

    intelmic-mkoffload: Deal with linker defaulting to 32-bit x86 mode.
    
    ... which explicitly has to be switched into 64-bit x86_64 mode.
    
    	gcc/
    	* config/i386/intelmic-mkoffload.c (compile_for_target): Always
    	add "-m32" or "-m64" to argv_obstack.
    	(generate_host_descr_file): Likewise, when invoking host_compiler.
    	(main): Always add "-m elf_i386" or "-m elf_x86_64" when invoking
    	ld.
    
    git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@219345 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/ChangeLog                        |  8 ++++++++
 gcc/config/i386/intelmic-mkoffload.c | 12 ++++++++----
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git gcc/ChangeLog gcc/ChangeLog
index bee5f1e..01b6cc6 100644
--- gcc/ChangeLog
+++ gcc/ChangeLog
@@ -1,3 +1,11 @@
+2015-01-08  Thomas Schwinge  <thomas@codesourcery.com>
+
+	* config/i386/intelmic-mkoffload.c (compile_for_target): Always
+	add "-m32" or "-m64" to argv_obstack.
+	(generate_host_descr_file): Likewise, when invoking host_compiler.
+	(main): Always add "-m elf_i386" or "-m elf_x86_64" when invoking
+	ld.
+
 2015-01-08  Oleg Endo  <olegendo@gcc.gnu.org>
 
 	* config/sh/sh-mem.cc: Use constant as second operand when emitting
diff --git gcc/config/i386/intelmic-mkoffload.c gcc/config/i386/intelmic-mkoffload.c
index c3d2b23..23bc955 100644
--- gcc/config/i386/intelmic-mkoffload.c
+++ gcc/config/i386/intelmic-mkoffload.c
@@ -191,6 +191,8 @@ compile_for_target (struct obstack *argv_obstack)
 {
   if (target_ilp32)
     obstack_ptr_grow (argv_obstack, "-m32");
+  else
+    obstack_ptr_grow (argv_obstack, "-m64");
   obstack_ptr_grow (argv_obstack, NULL);
   char **argv = XOBFINISH (argv_obstack, char **);
 
@@ -355,6 +357,8 @@ generate_host_descr_file (const char *host_compiler)
   new_argv[new_argc++] = "-shared";
   if (target_ilp32)
     new_argv[new_argc++] = "-m32";
+  else
+    new_argv[new_argc++] = "-m64";
   new_argv[new_argc++] = src_filename;
   new_argv[new_argc++] = "-o";
   new_argv[new_argc++] = obj_filename;
@@ -511,11 +515,11 @@ main (int argc, char **argv)
   unsigned new_argc = 0;
   const char *new_argv[9];
   new_argv[new_argc++] = "ld";
+  new_argv[new_argc++] = "-m";
   if (target_ilp32)
-    {
-      new_argv[new_argc++] = "-m";
-      new_argv[new_argc++] = "elf_i386";
-    }
+    new_argv[new_argc++] = "elf_i386";
+  else
+    new_argv[new_argc++] = "elf_x86_64";
   new_argv[new_argc++] = "--relocatable";
   new_argv[new_argc++] = host_descr_filename;
   new_argv[new_argc++] = target_so_filename;


GrÃÃe,
 Thomas

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