crosstool-ng: config/companion_tools.in@c0bf2319af08

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 # Companion tools config options

     3 if EXPERIMENTAL

     5 menu "Companion tools"

     7 comment "READ HELP before you say 'Y' below !!!"

     8 config COMP_TOOLS

     9     bool

    10     prompt "Build some companion tools"

    11     help

    12       Crosstool-NG relies on some external tools to be recent enough, namely:

    13         make = 3.81 (in some cases)

    14         m4 >= 1.4.12

    15         autoconf >= 2.63

    16         automake >= 1.10.2

    17         libtool >= 2.2.4

    19       If your system has older versions, we can build them for you,

    20       but you are strongly encouraged to update your system instead!

    22 if COMP_TOOLS

    24 config COMP_TOOLS_make

    25     bool

    26     prompt "make"

    28 config COMP_TOOLS_m4

    29     bool

    30     prompt "m4"

    32 config COMP_TOOLS_autoconf

    33     bool

    34     prompt "autoconf"

    36 config COMP_TOOLS_automake

    37     bool

    38     prompt "automake"

    40 config COMP_TOOLS_libtool

    41     bool

    42     prompt "libtool"

    44 endif

    46 endmenu

    48 endif

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 1730	c43d16b6b950
child 3291	ccef9a13c09b
permissions	-rw-r--r--