config/companion_tools.in
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 1730 c43d16b6b950
child 3291 ccef9a13c09b
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)
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# Companion tools config options
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if EXPERIMENTAL
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menu "Companion tools"
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comment "READ HELP before you say 'Y' below !!!"
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config COMP_TOOLS
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    bool
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    prompt "Build some companion tools"
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    help
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      Crosstool-NG relies on some external tools to be recent enough, namely:
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        make = 3.81 (in some cases)
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        m4 >= 1.4.12
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        autoconf >= 2.63
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        automake >= 1.10.2
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        libtool >= 2.2.4
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      If your system has older versions, we can build them for you,
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      but you are strongly encouraged to update your system instead!
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if COMP_TOOLS
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config COMP_TOOLS_make
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    bool
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    prompt "make"
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config COMP_TOOLS_m4
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    bool
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    prompt "m4"
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config COMP_TOOLS_autoconf
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    bool
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    prompt "autoconf"
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config COMP_TOOLS_automake
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    bool
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    prompt "automake"
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config COMP_TOOLS_libtool
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    bool
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    prompt "libtool"
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endif
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endmenu
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endif