[Feature][YUKUAI_patch]add 18.02 code

Only Configure: No
Affected branch: master
Affected module: unknow
Is it affected on both ZXIC and MTK: only ZXIC
Self-test: Yes
Doc Update: No

Change-Id: I7f71153004f10fc0ea5adfa083866aaeeb1053ac
diff --git a/rootfs/usr/bin/gcore b/rootfs/usr/bin/gcore
new file mode 100755
index 0000000..227624a
--- /dev/null
+++ b/rootfs/usr/bin/gcore
@@ -0,0 +1,117 @@
+#!/usr/bin/env bash
+
+#   Copyright (C) 2003-2020 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+#
+# Script to generate a core file of a running program.
+# It starts up gdb, attaches to the given PID and invokes the gcore command.
+#
+
+# Need to check for -o option, but set default basename to "core".
+prefix=core
+
+# When the -a option is present, this may hold additional commands
+# to ensure gdb dumps all mappings (OS dependent).
+dump_all_cmds=()
+
+while getopts :ao: opt; do
+    case "$opt" in
+        a)
+            case "$OSTYPE" in
+                linux*)
+                    dump_all_cmds=("-ex" "set use-coredump-filter off")
+                    dump_all_cmds+=("-ex" "set dump-excluded-mappings on")
+                    ;;
+            esac
+            ;;
+        o)
+            prefix=$OPTARG
+            ;;
+        *)
+            echo "usage:  gcore [-a] [-o prefix] pid1 [pid2...pidN]"
+            exit 2
+            ;;
+    esac
+done
+
+shift $((OPTIND-1))
+
+if [ "$#" -eq "0" ]
+then
+    echo "usage:  gcore [-a] [-o prefix] pid1 [pid2...pidN]"
+    exit 2
+fi
+
+# Attempt to fetch the absolute path to the gcore script that was
+# called.
+binary_path=`dirname "$0"`
+
+if test "x$binary_path" = x. ; then
+  # We got "." back as a path.  This means the user executed
+  # the gcore script locally (i.e. ./gcore) or called the
+  # script via a shell interpreter (i.e. sh gcore).
+  binary_basename=`basename "$0"`
+
+  # If the gcore script was called like "sh gcore" and the script
+  # lives in the current directory, "which" will not give us "gcore".
+  # So first we check if the script is in the current directory
+  # before using the output of "which".
+  if test -f "$binary_basename" ; then
+    # We have a local gcore script in ".".  This covers the case of
+    # doing "./gcore" or "sh gcore".
+    binary_path="."
+  else
+    # The gcore script was not found in ".", which means the script
+    # was called from somewhere else in $PATH by "sh gcore".
+    # Extract the correct path now.
+    binary_path_from_env=`which "$0"`
+    binary_path=`dirname "$binary_path_from_env"`
+  fi
+fi
+
+# Check if the GDB binary is in the expected path.  If not, just
+# quit with a message.
+if [ ! -f "$binary_path/gdb" ]; then
+  echo "gcore: GDB binary (${binary_path}/gdb) not found"
+  exit 1
+fi
+
+# Initialise return code.
+rc=0
+
+# Loop through pids
+for pid in "$@"
+do
+	# `</dev/null' to avoid touching interactive terminal if it is
+	# available but not accessible as GDB would get stopped on SIGTTIN.
+	"$binary_path/gdb" </dev/null \
+	    --nx --batch --readnever \
+	    -ex "set pagination off" -ex "set height 0" -ex "set width 0" \
+	    "${dump_all_cmds[@]}" \
+	    -ex "attach $pid" -ex "gcore $prefix.$pid" -ex detach -ex quit
+
+	if [ -r "$prefix.$pid" ] ; then
+	    rc=0
+	else
+	    echo "gcore: failed to create $prefix.$pid"
+	    rc=1
+	    break
+	fi
+
+
+done
+
+exit $rc