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patches/binutils/2.20.1a/300-mips64-defaultemul.patch
author "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
Tue Dec 13 23:32:39 2011 +0100 (2011-12-13)
branch1.13
changeset 2847 c0bf2319af08
parent 2088 4f21ba5f8e91
permissions -rw-r--r--
scripts: fix dumping execution backtrace

Dumping the backtrace has been broken since changeset #652e56d6d35a:
scripts: execute each steps in a subshell

We can spawn sub-sub-shells in some cases.

The way the fault handler works is to dump the backtrace, but to avoid
printing it once for every sub-shell (which could get quite confusing),
it simply exits when it detects that it is being run in a sub-shell,
leaving to the top-level shell the work to dump the backtrace.

Because each step is executed in its own sub-shell, the variable arrays
that contain the step name, the source file and line number, are lost
when exiting the per-step sub-shell.

Hence, the backtrace is currently limited to printing only the top-level
main procedure of the shell.

Fix this thus:
- when dumping the bckatraces for the steps & the functions, remember
it was dumped, and only dump it if it was not already dumped
- at the top-level shell, print the hints

Also, rename the top-level step label.

Reported-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
(transplanted from 4193d6e6a17430a177fa88c287879c2c35e319f3) 
     1 

     2 

     3 diff -durN binutils-2.20.1.orig/ld/configure.tgt binutils-2.20.1/ld/configure.tgt

     4 --- binutils-2.20.1.orig/ld/configure.tgt	2009-08-06 19:38:03.000000000 +0200

     5 +++ binutils-2.20.1/ld/configure.tgt	2010-08-17 19:32:26.000000000 +0200

     6 @@ -400,11 +400,11 @@

     7  mips*-*-vxworks*)	targ_emul=elf32ebmipvxworks

     8  		        targ_extra_emuls="elf32elmipvxworks" ;;

     9  mips*-*-windiss)	targ_emul=elf32mipswindiss ;;

    10 -mips64*el-*-linux-*)	targ_emul=elf32ltsmipn32

    11 -			targ_extra_emuls="elf32btsmipn32 elf32ltsmip elf32btsmip elf64ltsmip elf64btsmip"

    12 +mips64*el-*-linux-*)	targ_emul=elf64ltsmip

    13 +			targ_extra_emuls="elf32ltsmipn32 elf32btsmipn32 elf32ltsmip elf32btsmip elf64btsmip"

    14  			targ_extra_libpath=$targ_extra_emuls ;;

    15 -mips64*-*-linux-*)	targ_emul=elf32btsmipn32

    16 -			targ_extra_emuls="elf32ltsmipn32 elf32btsmip elf32ltsmip elf64btsmip elf64ltsmip"

    17 +mips64*-*-linux-*)	targ_emul=elf64btsmip

    18 +			targ_extra_emuls="elf32btsmipn32 elf32ltsmipn32 elf32btsmip elf32ltsmip elf64ltsmip"

    19  			targ_extra_libpath=$targ_extra_emuls ;;

    20  mips*el-*-linux-*)	targ_emul=elf32ltsmip

    21  			targ_extra_emuls="elf32btsmip elf32ltsmipn32 elf64ltsmip elf32btsmipn32 elf64btsmip"
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