#!/bin/sh
#
# Copyright (c) 2009, 2013, Oracle and/or its affiliates. All rights reserved.
#

#
# This script is invoked by isaexec-governed executable wrappers from within
# s10-branded zones.  It circumvents the native isaexec so that native wrappers
# will function correctly.
#
# All native executables must be run using the native linker.
# By default, the kernel loads the linker at /lib/ld.so.1, which
# in an s10 zone is the s10 linker.  Hence when we run the native
# executable below, we explicitly specify /.SUNWnative/lib/ld.so.1 as our 32-
# bit linker and /.SUNWnative/lib/64/ld.so.1 as our 64-bit linker.
# For convience we define "n" to be the native path prefix.
# The initial s10_native argument is used as a way to tell the brand
# emulation that it needs to set up the process to run as an unbranded
# process.
#
# If this script gets setup with a mode that makes it suid, then things won't
# work because the script will be running with the incorrect name.
#
n=/.SUNWnative
npath=$__S10_BRAND_NATIVE_PATH
bname=`/usr/bin/basename $0`
dname=`/usr/bin/dirname $0`
echo $dname | /usr/bin/grep "^/" >/dev/null || dname=`/bin/pwd`/$dname
dname=`(cd $dname 2>/dev/null && /bin/pwd 2>/dev/null)`
arch64=/

if [ -n "$npath" ]; then
	ename=$n$npath/$bname
else
	ename=$n$dname/$bname
fi

LC_ALL=C /usr/bin/file $ename | /usr/bin/grep "64-bit" \
    >/dev/null && arch64=/64/

# This wrapper is running in the S10 zone so there is no L10N for the
# following error msg.
if [ ! -f $ename ]; then
	echo "Error: \"$dname/$bname\" is not installed in the global zone"
	exit 1
fi

#
# These variables are used by the s10_npreload library to determine the
# process name to set for the target binary.
#
__S10_BRAND_ARG0="$0"
__S10_BRAND_EXECNAME="$dname/$bname"
export __S10_BRAND_ARG0
export __S10_BRAND_EXECNAME

exec $n/usr/lib/brand/solaris10/s10_native \
    $n/lib${arch64}ld.so.1 \
    -e LD_NOENVIRON=1 \
    -e LD_NOCONFIG=1 \
    -e LD_PRELOAD_32=$n/usr/lib/s10_npreload.so.1 \
    -e LD_PRELOAD_64=$n/usr/lib/64/s10_npreload.so.1 \
    -e LD_AUDIT_32=$n/usr/lib/s10_nlibchroot.so.1 \
    -e LD_AUDIT_64=$n/usr/lib/64/s10_nlibchroot.so.1 \
    $ename "$@"