scripts/build/debug.sh
author "Yann E. MORIN" <yann.morin.1998@free.fr>
Sat Oct 06 23:48:07 2012 +0200 (2012-10-06)
changeset 3083 3a7b2eee9dcd
parent 483 99724e410693
permissions -rw-r--r--
scripts: add option to start an interactive debug shell

Add an option that, when a command fails:
- starts an interactive shell with the failed command's environment
- attempts re-execution of the failed command, continues, or aborts
at user's whim.

Before starting the debug-shell, the backtrace is printed.
When exiting for an abort, the standard error message is printed.

Based on an idea and a patch from: Johannes Stezenbach <js@sig21.net>
http://sourceware.org/ml/crossgcc/2012-09/msg00144.html

Signed-off-by: Johannes Stezenbach <js@sig21.net>
[yann.morin.1998@free.fr: integrate in the fault handler]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Acked-by: Johannes Stezenbach <js@sig21.net>
Patchwork-Id: 191571
Patchwork-Id: 191668
     1 # Wrapper to build the debug facilities
     2 
     3 # List all debug facilities, and parse their scripts
     4 CT_DEBUG_FACILITY_LIST=
     5 for f in "${CT_LIB_DIR}/scripts/build/debug/"*.sh; do
     6     _f="$(basename "${f}" .sh)"
     7     _f="${_f#???-}"
     8     __f="CT_DEBUG_${_f}"
     9     if [ "${!__f}" = "y" ]; then
    10         CT_DoLog DEBUG "Enabling debug '${_f}'"
    11         . "${f}"
    12         CT_DEBUG_FACILITY_LIST="${CT_DEBUG_FACILITY_LIST} ${_f}"
    13     else
    14         CT_DoLog DEBUG "Disabling debug '${_f}'"
    15     fi
    16 done
    17 
    18 # Download the debug facilities
    19 do_debug_get() {
    20     for f in ${CT_DEBUG_FACILITY_LIST}; do
    21         do_debug_${f}_get
    22     done
    23 }
    24 
    25 # Extract and patch the debug facilities
    26 do_debug_extract() {
    27     for f in ${CT_DEBUG_FACILITY_LIST}; do
    28         do_debug_${f}_extract
    29     done
    30 }
    31 
    32 # Build the debug facilities
    33 do_debug() {
    34     for f in ${CT_DEBUG_FACILITY_LIST}; do
    35         do_debug_${f}_build
    36     done
    37 }
    38