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Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.

From: Luis Machado <lgustavo at codesourcery dot com>
To: "Maciej W. Rozycki" <macro at codesourcery dot com>
Cc: Pedro Alves <palves at redhat dot com>, Tom Tromey <tromey at redhat dot com>, Stan Shebs <stanshebs at earthlink dot net>, GDB Patches <gdb-patches at sourceware dot org>, Ulrich Weigand <uweigand at de dot ibm dot com>
Date: Thu, 04 Jul 2013 08:48:48 -0300
Subject: Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
References: <51D1AD43 dot 3060904 at codesourcery dot com> <8761wsgb8i dot fsf at fleche dot redhat dot com> <51D3050C dot 4070309 at codesourcery dot com> <51D30BB0 dot 3050906 at earthlink dot net> <87wqp8estz dot fsf at fleche dot redhat dot com> <51D32100 dot 4000901 at codesourcery dot com> <51D43DBB dot 5090803 at redhat dot com> <51D47A05 dot 9020404 at codesourcery dot com> <alpine dot DEB dot 1 dot 10 dot 1307032122270 dot 20590 at tp dot orcam dot me dot uk> <51D48F54 dot 4070509 at codesourcery dot com> <alpine dot DEB dot 1 dot 10 dot 1307032205410 dot 20590 at tp dot orcam dot me dot uk>
Reply-to: lgustavo at codesourcery dot com

On 07/03/2013 06:08 PM, Maciej W. Rozycki wrote:

On Wed, 3 Jul 2013, Luis Machado wrote:

   Hmm, while (unlike Alpha's -taso option) there is no way to force an
entire n64 MIPS process into the 31-bit address space, the dynamic
executable itself should work just fine mapped low.  However the default
linker script relies on the start address of the text (0x120000000, unless
overridden) rather than data segment to get things right and moving the
linker's output address pointer backwards in the middle of the binary
being linker may yield strange results.  Can you try (or have you tried)
-Ttext=... instead?


I don't see a segfault with Ttext, but the text addresses are still based on
0x120000000.


  Try -Ttext-segment=... instead, sorry about the confusion.

That also doesn't seem to prevent thing from being linked at addresses >32-bits. Code is still at 0x120000000 apparently.


(gdb) break checkpoint1^M
Breakpoint 1 at 0x120000cdc: file gdb/testsuite/gdb.base/dump.c, line 19.

Follow-Ups:
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Maciej W. Rozycki

References:
- [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Luis Machado
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Tom Tromey
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Luis Machado
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Stan Shebs
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Tom Tromey
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Luis Machado
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Pedro Alves
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Luis Machado
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Maciej W. Rozycki
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Luis Machado
- Re: [PATCH, testsuite] Don't run SREC, IHEX and TEKHEX tests for MIPS N64.
  - From: Maciej W. Rozycki

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