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config/companion_libs/mpc.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 1985 f04a1f18c2bb
child 2957 3e2f2100a76d
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 # MPC options

     2 

     3 choice

     4     bool

     5     prompt "MPC version"

     6 # Don't remove next line

     7 # CT_INSERT_VERSION_BELOW

     8 

     9 config MPC_V_0_9

    10     bool

    11     prompt "0.9 (EXPERIMENTAL)"

    12     depends on EXPERIMENTAL

    13 

    14 config MPC_V_0_8_2

    15     bool

    16     prompt "0.8.2 (EXPERIMENTAL)"

    17     depends on EXPERIMENTAL

    18 

    19 config MPC_V_0_8_1

    20     bool

    21     prompt "0.8.1"

    22 

    23 config MPC_V_0_7

    24     bool

    25     prompt "0.7"

    26 

    27 config MPC_V_0_6

    28     bool

    29     prompt "0.6 (OBSOLETE)"

    30     depends on OBSOLETE

    31 

    32 endchoice

    33 

    34 config MPC_VERSION

    35     string

    36 # Don't remove next line

    37 # CT_INSERT_VERSION_STRING_BELOW

    38     default "0.9" if MPC_V_0_9

    39     default "0.8.2" if MPC_V_0_8_2

    40     default "0.8.1" if MPC_V_0_8_1

    41     default "0.7" if MPC_V_0_7

    42     default "0.6" if MPC_V_0_6
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