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#! /bin/bash
set -e -x
file=$1
if [ -z "$file" ]; then
cat <<EOF
Please supply the main source file as the first argument.
EOF
exit 1
fi
if grep -q '^|' </proc/sys/kernel/core_pattern; then
cat <<EOF
Your system uses a crash report tool ($(cat /proc/sys/kernel/core_pattern)). Core files
will not be generated. Please reset /proc/sys/kernel/core_pattern (requires root
privileges) to enable core generation.
EOF
exit 1
fi
ulimit -c 1000
real_limit=$(ulimit -c)
if [ $real_limit -lt 100 ]; then
cat <<EOF
Unable to increase the core file limit. Core file may be truncated!
To fix this, increase HARD core file limit (ulimit -H -c 1000). This may require root
privileges.
EOF
fi
${CC:-cc} -nostdlib -static -g $CFLAGS "$file" -o a.out
cat <<EOF
Executable file is in a.out.
Core file will be saved according to pattern $(cat /proc/sys/kernel/core_pattern).
EOF
ulimit -s 8 # Decrease stack size to 8k => smaller core files.
exec ./a.out
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