* Re: [PATCH] Re: -taso support in LD
@ 2000-07-27 18:29 Nick Clifton
2000-07-27 18:54 ` H . J . Lu
0 siblings, 1 reply; 6+ messages in thread
From: Nick Clifton @ 2000-07-27 18:29 UTC (permalink / raw)
To: hjl; +Cc: block, ink, binutils
Hi H.J.
: > 2000-01-21 Ivan Kokshaysky <ink@jurassic.park.msu.ru>
: >
: > * emulparams/elf64alpha.sh: Implement "-taso" emulation
: > specific option to fit 64-bit executable in the lower
: > 31-bit address range. This is done by changing start
: > address of .interp (the very first section of executable)
: > and then setting EF_ALPHA_32BIT elf header flag.
: >
:
: The patch is no longer valid due to my recent change to elf32.em.
Oh!
: However, I do have a version which works. Should I go ahead to install
: it?
Yes please.
Cheers
Nick
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Re: -taso support in LD
2000-07-27 18:29 [PATCH] Re: -taso support in LD Nick Clifton
@ 2000-07-27 18:54 ` H . J . Lu
0 siblings, 0 replies; 6+ messages in thread
From: H . J . Lu @ 2000-07-27 18:54 UTC (permalink / raw)
To: Nick Clifton; +Cc: block, ink, binutils
On Thu, Jul 27, 2000 at 06:29:06PM -0700, Nick Clifton wrote:
> Hi H.J.
>
> : > 2000-01-21 Ivan Kokshaysky <ink@jurassic.park.msu.ru>
> : >
> : > * emulparams/elf64alpha.sh: Implement "-taso" emulation
> : > specific option to fit 64-bit executable in the lower
> : > 31-bit address range. This is done by changing start
> : > address of .interp (the very first section of executable)
> : > and then setting EF_ALPHA_32BIT elf header flag.
> : >
> :
> : The patch is no longer valid due to my recent change to elf32.em.
>
> Oh!
>
> : However, I do have a version which works. Should I go ahead to install
> : it?
>
> Yes please.
Done. Please double check it.
H.J.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Re: -taso support in LD
2000-07-27 18:01 Nick Clifton
@ 2000-07-27 18:26 ` H . J . Lu
0 siblings, 0 replies; 6+ messages in thread
From: H . J . Lu @ 2000-07-27 18:26 UTC (permalink / raw)
To: Nick Clifton; +Cc: block, ink, binutils
On Thu, Jul 27, 2000 at 06:01:13PM -0700, Nick Clifton wrote:
> Hi Ken, Hi Ivan,
>
> I have now approved and checked this patch into the binutils
> sources. My apologise for taking so long to do this :-(
>
> Cheers
> Nick
>
>
> 2000-01-21 Ivan Kokshaysky <ink@jurassic.park.msu.ru>
>
> * emulparams/elf64alpha.sh: Implement "-taso" emulation
> specific option to fit 64-bit executable in the lower
> 31-bit address range. This is done by changing start
> address of .interp (the very first section of executable)
> and then setting EF_ALPHA_32BIT elf header flag.
>
The patch is no longer valid due to my recent change to elf32.em.
However, I do have a version which works. Should I go ahead to install
it?
H.J.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] Re: -taso support in LD
@ 2000-07-27 18:01 Nick Clifton
2000-07-27 18:26 ` H . J . Lu
0 siblings, 1 reply; 6+ messages in thread
From: Nick Clifton @ 2000-07-27 18:01 UTC (permalink / raw)
To: block, ink; +Cc: binutils
Hi Ken, Hi Ivan,
I have now approved and checked this patch into the binutils
sources. My apologise for taking so long to do this :-(
Cheers
Nick
2000-01-21 Ivan Kokshaysky <ink@jurassic.park.msu.ru>
* emulparams/elf64alpha.sh: Implement "-taso" emulation
specific option to fit 64-bit executable in the lower
31-bit address range. This is done by changing start
address of .interp (the very first section of executable)
and then setting EF_ALPHA_32BIT elf header flag.
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH] Re: -taso support in LD
2000-01-21 8:39 ` [PATCH] " Ivan Kokshaysky
@ 2000-01-29 9:41 ` H . J . Lu
0 siblings, 0 replies; 6+ messages in thread
From: H . J . Lu @ 2000-01-29 9:41 UTC (permalink / raw)
To: Ivan Kokshaysky; +Cc: Ken Block USG, binutils, hjl
On Fri, Jan 21, 2000 at 07:35:04PM +0300, Ivan Kokshaysky wrote:
> On Wed, Jan 19, 2000 at 03:59:37PM -0500, Ken Block USG wrote:
> > Ivan Kokshaysky posted a cool patch to get GNU LD to support -taso which
> > on a 64 bit platform jams the application into the bottom 32 bits. This
> > can help portability a lot. I've heard part of the problem porting
> > netscape to Alpha Linux is that it is not 64 bit clean. This feature has
>
> I'm not sure about netscape, but it definitely helps Quake to run
> on Alpha/Linux ;-)
>
> > existed on Tru64/Digital Unix for a long time. Any possibility of
> > getting it checked in to CVS? Or the linux distribution?
> >
>
> It would be nice, so I repost the patch against current CVS here.
>
Thanks. Sorry for the delay. It will be in the next Linux binutils.
H.J.
^ permalink raw reply [flat|nested] 6+ messages in thread
* [PATCH] Re: -taso support in LD
2000-01-19 13:00 Ken Block USG
@ 2000-01-21 8:39 ` Ivan Kokshaysky
2000-01-29 9:41 ` H . J . Lu
0 siblings, 1 reply; 6+ messages in thread
From: Ivan Kokshaysky @ 2000-01-21 8:39 UTC (permalink / raw)
To: Ken Block USG; +Cc: binutils, hjl
On Wed, Jan 19, 2000 at 03:59:37PM -0500, Ken Block USG wrote:
> Ivan Kokshaysky posted a cool patch to get GNU LD to support -taso which
> on a 64 bit platform jams the application into the bottom 32 bits. This
> can help portability a lot. I've heard part of the problem porting
> netscape to Alpha Linux is that it is not 64 bit clean. This feature has
I'm not sure about netscape, but it definitely helps Quake to run
on Alpha/Linux ;-)
> existed on Tru64/Digital Unix for a long time. Any possibility of
> getting it checked in to CVS? Or the linux distribution?
>
It would be nice, so I repost the patch against current CVS here.
Ivan.
2000-01-21 Ivan Kokshaysky <ink@jurassic.park.msu.ru>
* emulparams/elf64alpha.sh: Implement "-taso" emulation
specific option to fit 64-bit executable in the lower
31-bit address range. This is done by changing start
address of .interp (the very first section of executable)
and then setting EF_ALPHA_32BIT elf header flag.
Index: binutils/ld/emulparams/elf64alpha.sh
===================================================================
RCS file: /cvs/binutils/binutils/ld/emulparams/elf64alpha.sh,v
retrieving revision 1.1.1.1
diff -u -r1.1.1.1 elf64alpha.sh
--- elf64alpha.sh 1999/05/03 07:29:07 1.1.1.1
+++ elf64alpha.sh 2000/01/21 15:47:30
@@ -13,3 +13,87 @@
NOP=0x47ff041f
OTHER_READONLY_SECTIONS='.reginfo : { *(.reginfo) }'
+
+# This code gets inserted into the generic elf32.sc linker script
+# and allows us to define our own command line switches.
+PARSE_AND_LIST_ARGS='
+#define OPTION_TASO 300
+/* Set the start address as in the Tru64 ld */
+#define ALPHA_TEXT_START_32BIT 0x12000000
+
+static int elf64alpha_32bit = 0;
+
+static struct option longopts[] =
+{
+ {"taso", no_argument, NULL, OPTION_TASO},
+ {NULL, no_argument, NULL, 0}
+};
+
+static void
+gld_elf64alpha_list_options (file)
+ FILE * file;
+{
+ fprintf (file, _(
+" -taso Load executable in the lower 31-bit addressable
+ virtual address range.\n"));
+}
+
+struct ld_emulation_xfer_struct ld_elf64alpha_emulation;
+static void gld_elf64alpha_finish();
+
+static int
+gld_elf64alpha_parse_args (argc, argv)
+ int argc;
+ char ** argv;
+{
+ int longind;
+ int optc;
+ int prevoptind = optind;
+ int prevopterr = opterr;
+ int wanterror;
+ static int lastoptind = -1;
+
+ if (lastoptind != optind)
+ opterr = 0;
+
+ wanterror = opterr;
+ lastoptind = optind;
+
+ optc = getopt_long_only (argc, argv, "-", longopts, & longind);
+ opterr = prevopterr;
+
+ switch (optc)
+ {
+ default:
+ if (wanterror)
+ xexit (1);
+ optind = prevoptind;
+ return 0;
+
+ case EOF:
+ if (elf64alpha_32bit && !link_info.shared && !link_info.relocateable)
+ {
+ lang_section_start(".interp",
+ exp_binop('\''+'\'', exp_intop(ALPHA_TEXT_START_32BIT),
+ exp_nameop(SIZEOF_HEADERS, NULL)));
+ ld_elf64alpha_emulation.finish = gld_elf64alpha_finish;
+ }
+ return 0;
+
+ case OPTION_TASO:
+ elf64alpha_32bit = 1;
+ break;
+ }
+
+ return 1;
+}
+
+#include "elf/internal.h"
+#include "elf/alpha.h"
+#include "elf-bfd.h"
+
+static void
+gld_elf64alpha_finish()
+{
+ elf_elfheader (output_bfd)->e_flags |= EF_ALPHA_32BIT;
+}'
^ permalink raw reply [flat|nested] 6+ messages in thread
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2000-07-27 18:29 [PATCH] Re: -taso support in LD Nick Clifton
2000-07-27 18:54 ` H . J . Lu
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2000-07-27 18:01 Nick Clifton
2000-07-27 18:26 ` H . J . Lu
2000-01-19 13:00 Ken Block USG
2000-01-21 8:39 ` [PATCH] " Ivan Kokshaysky
2000-01-29 9:41 ` H . J . Lu
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