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config/binutils/elf2flt.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 2467 200836977ce6
child 3090 a221c86d9b33
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 # elf2flt options

     2 

     3 if ARCH_BINFMT_FLAT

     4 

     5 comment "elf2flt"

     6 

     7 choice

     8     bool

     9     prompt "elf2flt version"

    10 # Don't remove next line

    11 # CT_INSERT_VERSION_BELOW

    12 

    13 config ELF2FLT_CVSHEAD

    14     bool

    15     prompt "CVS Head"

    16     help

    17       Grab the latest version of elf2flt from the CVS repository

    18 

    19 config ELF2FLT_CVS_SNAPSHOT

    20     bool

    21     prompt "CVS Snapshot"

    22 

    23 endchoice

    24 

    25 config ELF2FLT_CVS_SNAPSHOT_SPEC

    26     string

    27     depends on ELF2FLT_CVS_SNAPSHOT

    28     default ""

    29     prompt "CVS refspec for elf2flt"

    30     help

    31        What you enter here will be passed verbatim to the cvs checkout command

    32        so be careful!

    33 

    34 config ELF2FLT_VERSION

    35     string

    36     default "head" if ELF2FLT_CVSHEAD

    37 # Don't remove next line

    38 # CT_INSERT_VERSION_STRING_BELOW

    39 

    40 config ELF2FLT_EXTRA_CONFIG_ARRAY

    41     string

    42     prompt "elf2flt extra config"

    43     default ""

    44     help

    45       Extra flags passed onto ./configure when configuring

    46       

    47       You can enter multiple arguments here, and arguments can contain spaces

    48       if they are properly quoted (or escaped, but prefer quotes). Eg.:

    49           --with-foo="1st arg with 4 spaces" --with-bar=2nd-arg-without-space

    50 

    51 endif
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