config/binutils.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 1897 0a3b9af21490
child 3117 2b64e1b502cd
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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# Binary utilities menu
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menu "Binary utilities"
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choice
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    bool
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    prompt "Binary format:"
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if ARCH_USE_MMU || BARE_METAL
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config ARCH_BINFMT_ELF
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    bool
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    prompt "ELF"
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    help
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      This will make your system build ELF executables,
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      suitable for architectures with an MMU.
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endif # ARCH_USE_MMU
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if ! ARCH_USE_MMU
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config ARCH_BINFMT_FLAT
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    bool
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    prompt "Flat"
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    help
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      This will build flat binaries, suitable for
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      MMU-less architectures.
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config ARCH_BINFMT_FDPIC
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    bool
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    prompt "FD_PIC ELF"
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    help
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      This will build FD_PIC ELF binaries, suitable for
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      MMU-less architectures that still require to use
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      shared libraries (FIXME).
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endif # ! ARCH_USE_MMU
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endchoice
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source "config/binutils/binutils.in"
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source "config/binutils/elf2flt.in"
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source "config/binutils/sstrip.in"
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endmenu