crosstool-ng: patches/binutils/2.20.1a/240-ld

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 Description: correct where ld scripts are installed

     2 Author: Chris Chimelis <chris@debian.org>

     4 diff -durN binutils-2.20.1.orig/ld/Makefile.am binutils-2.20.1/ld/Makefile.am

     5 --- binutils-2.20.1.orig/ld/Makefile.am	2010-02-22 09:07:01.000000000 +0100

     6 +++ binutils-2.20.1/ld/Makefile.am	2010-08-17 19:32:21.000000000 +0200

     7 @@ -24,7 +24,7 @@

     8  # We put the scripts in the directory $(scriptdir)/ldscripts.

     9  # We can't put the scripts in $(datadir) because the SEARCH_DIR

    10  # directives need to be different for native and cross linkers.

    11 -scriptdir = $(tooldir)/lib

    12 +scriptdir = $(libdir)

    14  EMUL = @EMUL@

    15  EMULATION_OFILES = @EMULATION_OFILES@

    16 diff -durN binutils-2.20.1.orig/ld/Makefile.in binutils-2.20.1/ld/Makefile.in

    17 --- binutils-2.20.1.orig/ld/Makefile.in	2010-03-03 15:06:21.000000000 +0100

    18 +++ binutils-2.20.1/ld/Makefile.in	2010-08-17 19:32:21.000000000 +0200

    19 @@ -333,7 +333,7 @@

    20  # We put the scripts in the directory $(scriptdir)/ldscripts.

    21  # We can't put the scripts in $(datadir) because the SEARCH_DIR

    22  # directives need to be different for native and cross linkers.

    23 -scriptdir = $(tooldir)/lib

    24 +scriptdir = $(libdir)

    25  BASEDIR = $(srcdir)/..

    26  BFDDIR = $(BASEDIR)/bfd

    27  INCDIR = $(BASEDIR)/include

author	"Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
	Tue Dec 13 23:32:39 2011 +0100 (2011-12-13)
branch	1.13
changeset 2847	c0bf2319af08
parent 2088	4f21ba5f8e91
permissions	-rw-r--r--