| #!/bin/sh |
| # Script to validate NaCl binaries after linking. |
| |
| # Copyright (C) 2015-2016 Free Software Foundation, Inc. |
| # This file is part of the GNU C Library. |
| |
| # The GNU C Library is free software; you can redistribute it and/or |
| # modify it under the terms of the GNU Lesser General Public |
| # License as published by the Free Software Foundation; either |
| # version 2.1 of the License, or (at your option) any later version. |
| |
| # The GNU C Library 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 |
| # Lesser General Public License for more details. |
| |
| # You should have received a copy of the GNU Lesser General Public |
| # License along with the GNU C Library; if not, see |
| # <http://www.gnu.org/licenses/>. |
| |
| # See sysdeps/nacl/Makefile for how this script is invoked. |
| READELF="$1" |
| binary="$2" |
| |
| if [ -z "$NACL_SDK_ROOT" ]; then |
| echo >&2 "$0: NACL_SDK_ROOT must be set in the environment" |
| exit 77 |
| fi |
| |
| ncval="${NACL_SDK_ROOT}/tools/ncval" |
| |
| if [ ! -x "$ncval" ]; then |
| echo >&2 "$0: No ncval binary in $ncval" |
| exit 77 |
| fi |
| |
| "${READELF}" -Wl "$binary" | awk ' |
| BEGIN { saw_load = saw_text = 0 } |
| $1 == "LOAD" { |
| saw_load = 1; |
| if (/ R.E /) saw_code = 1; |
| } |
| END { |
| exit (saw_code ? 11 : saw_load ? 22 : 1); |
| } |
| ' |
| case $? in |
| 11) |
| # We saw a code segment, so we can try ncval. |
| ;; |
| 22) |
| # We saw LOAD segments but none of them were code. |
| echo >&2 "+++ No code: $binary" |
| exit 0 |
| ;; |
| *) |
| # Something funny going on. |
| echo >&2 "*** Failed to analyze: $binary" |
| exit 2 |
| ;; |
| esac |
| |
| if "$ncval" "$binary"; then |
| echo >&2 "+++ Validated: $binary" |
| exit 0 |
| else |
| echo >&2 "*** Validation failed: $binary" |
| exit 2 |
| fi |