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config/cc.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 2484 d1a8c2ae7946
child 3131 bd172b161ff8
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 # Compiler options

     2 

     3 menu "C compiler"

     4 

     5 config CC

     6     string

     7 

     8 config CC_VERSION

     9     string

    10 

    11 source "config.gen/cc.in"

    12 

    13 config CC_SUPPORT_CXX

    14     bool

    15 

    16 config CC_SUPPORT_FORTRAN

    17     bool

    18 

    19 config CC_SUPPORT_JAVA

    20     bool

    21 

    22 config CC_SUPPORT_ADA

    23     bool

    24 

    25 config CC_SUPPORT_OBJC

    26     bool

    27 

    28 config CC_SUPPORT_OBJCXX

    29     bool

    30 

    31 comment "Additional supported languages:"

    32 

    33 config CC_LANG_CXX

    34     bool

    35     prompt "C++"

    36     depends on CC_SUPPORT_CXX

    37     help

    38       Enable building a C++ compiler.

    39 

    40       Only select this if you know that your specific version of the

    41       compiler supports this language.

    42 

    43 if ! BARE_METAL

    44 

    45 config CC_LANG_FORTRAN

    46     bool

    47     prompt "Fortran"

    48     depends on CC_SUPPORT_FORTRAN

    49     help

    50       Enable building a FORTRAN compiler.

    51 

    52       Only select this if you know that your specific version of the

    53       compiler supports this language.

    54 

    55 config CC_LANG_JAVA

    56     bool

    57     prompt "Java"

    58     depends on CC_SUPPORT_JAVA

    59     help

    60       Enable building a Java compiler.

    61 

    62       Only select this if you know that your specific version of the

    63       compiler supports this language.

    64 

    65 config CC_LANG_ADA

    66     bool

    67     prompt "ADA (EXPERIMENTAL)"

    68     depends on CC_SUPPORT_ADA

    69     depends on EXPERIMENTAL

    70     help

    71       Enable building an Ada compiler.

    72 

    73       Only select this if you know that your specific version of the

    74       compiler supports this language.

    75 

    76 config CC_LANG_OBJC

    77     bool

    78     prompt "Objective-C (EXPERIMENTAL)"

    79     depends on CC_SUPPORT_OBJC

    80     depends on EXPERIMENTAL

    81     help

    82       Enable building an Objective C compiler.

    83 

    84       Only select this if you know that your specific version of the

    85       compiler supports this language.

    86 

    87 config CC_LANG_OBJCXX

    88     bool

    89     prompt "Objective-C++ (EXPERIMENTAL)"

    90     depends on EXPERIMENTAL

    91     depends on CC_SUPPORT_OBJCXX

    92     help

    93       Enable building an Objective C++ compiler.

    94 

    95       Only select this if you know that your specific version of the

    96       compiler supports this language.

    97 

    98 config CC_LANG_OTHERS

    99     string

   100     prompt "Other languages (EXPERIMENTAL)"

   101     default ""

   102     depends on EXPERIMENTAL

   103     help

   104       Enter here a comma-separated list of languages that you know your compiler

   105       supports, besides those listed above.

   106 

   107       Eg. gcc-4.1+ has a toy programming language, treelang. As it is not useful

   108       in real life, it is not available in the selection above.

   109 

   110 endif # ! BARE_METAL

   111 

   112 source "config.gen/cc.in.2"

   113 

   114 endmenu
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