[Bug other/49448] New: gcc configure script wrongly detect TARGET_BIG_ENDIAN_DEFAULT

[Bug other/49448] New: gcc configure script wrongly detect TARGET_BIG_ENDIAN_DEFAULT

[goughost at yahoo dot com.cn]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49448

           Summary: gcc configure script wrongly detect
                    TARGET_BIG_ENDIAN_DEFAULT
           Product: gcc
           Version: 4.5.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: goughost@yahoo.com.cn


In the configure script "gcc/config.gcc", around line 733:

arm*-*-linux*)                  # ARM GNU/Linux with ELF
        tm_file="dbxelf.h elfos.h linux.h glibc-stdint.h arm/elf.h
arm/linux-gas.h arm/linux-elf.h"
        case $target in
        arm*b-*)
                tm_defines="${tm_defines} TARGET_BIG_ENDIAN_DEFAULT=1"
                ;;
        esac
        tmake_file="${tmake_file} t-linux arm/t-arm"

If $target have the form "arm-tab-linux-gnu", this script will enable
big-endian defaults. But the resulting gcc will, by default, generate
little-endian object files, and pass some big-endian argument to linker.

This might be a common problem in scripts. Should the use of "*" be restricted,
or warned in some important scripts?

[Bug other/49448] gcc configure script wrongly detect TARGET_BIG_ENDIAN_DEFAULT

[schwab@linux-m68k.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49448

--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> 2011-06-17 07:26:12 UTC ---
It should use $target_cpu.

[Bug target/49448] arm-tab-linux-gnu-eabi enableds big endian when it should not

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49448

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2012-01-28
          Component|other                       |target
            Summary|gcc configure script        |arm-tab-linux-gnu-eabi
                   |wrongly detect              |enableds big endian when it
                   |TARGET_BIG_ENDIAN_DEFAULT   |should not
     Ever Confirmed|0                           |1

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-01-28 19:26:30 UTC ---
Confirmed.

[Bug target/49448] arm-tab-linux-gnu-eabi enableds big endian when it should not

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49448

--- Comment #3 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2012-02-28 15:26:13 UTC ---
Author: rearnsha
Date: Tue Feb 28 15:26:02 2012
New Revision: 184626

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=184626
Log:
    PR target/49448
    * config.gcc (arm*-*-linux*): Use an unambiguous pattern for
    detecting big-endian triplets.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config.gcc

[Bug target/49448] arm-tab-linux-gnu-eabi enableds big endian when it should not

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49448

--- Comment #4 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2012-04-12 14:11:37 UTC ---
Author: rearnsha
Date: Thu Apr 12 14:11:33 2012
New Revision: 186379

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186379
Log:
    PR target/49448
    * config.gcc (arm*-*-linux*): Use an unambiguous pattern for
    detecting big-endian triplets.

Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/config.gcc

[Bug target/49448] arm-tab-linux-gnu-eabi enableds big endian when it should not

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49448

--- Comment #5 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2012-04-12 14:11:53 UTC ---
Author: rearnsha
Date: Thu Apr 12 14:11:49 2012
New Revision: 186380

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=186380
Log:
    PR target/49448
    * config.gcc (arm*-*-linux*): Use an unambiguous pattern for
    detecting big-endian triplets.

Modified:
    branches/gcc-4_5-branch/gcc/ChangeLog
    branches/gcc-4_5-branch/gcc/config.gcc

[Bug target/49448] arm-tab-linux-gnu-eabi enableds big endian when it should not

[rearnsha at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49448

Richard Earnshaw <rearnsha at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|---                         |4.5.4

--- Comment #6 from Richard Earnshaw <rearnsha at gcc dot gnu.org> 2012-04-12 14:16:43 UTC ---
Fixed in 4.5.4, 4.6.4 4.7 and trunk