tests/usr.bin/ld/t_section.sh

   1 #       $NetBSD: t_section.sh,v 1.4 2015/02/17 11:51:04 martin Exp $
   2 #
   3 # Copyright (c) 2014 The NetBSD Foundation, Inc.
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions
   8 # are met:
   9 # 1. Redistributions of source code must retain the above copyright
  10 #    notice, this list of conditions and the following disclaimer.
  11 # 2. Redistributions in binary form must reproduce the above copyright
  12 #    notice, this list of conditions and the following disclaimer in the
  13 #    documentation and/or other materials provided with the distribution.
  14 #
  15 # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  16 # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  17 # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18 # PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  19 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  20 # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  21 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  22 # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  24 # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  25 # POSSIBILITY OF SUCH DAMAGE.
  26 #
  27
  28 ################################################################################
  29
  30 atf_test_case startstop
  31 startstop_head() {
  32         atf_set "descr" "check if __start_*/__stop_* symbols are generated"
  33         atf_set "require.progs" "cc"
  34 }
  35
  36 startstop_body() {
  37         cat > test.c << EOF
  38 #include <sys/cdefs.h>
  39 int i __section("hoge");
  40 extern int __start_hoge[], __stop_hoge[];
  41 int main(void) { return __start_hoge[0] + __stop_hoge[0]; }
  42 EOF
  43         atf_check -s exit:0 -o ignore -e ignore cc -o test test.c
  44 }
  45
  46 ################################################################################
  47
  48 atf_test_case orphan
  49 orphan_head() {
  50         atf_set "descr" "check orphan section placement"
  51         atf_set "require.progs" "cc" "readelf" "grep"
  52 }
  53
  54 orphan_body() {
  55         cat > test.c << EOF
  56 #include <sys/cdefs.h>
  57 /* read-only orphan */
  58 const char a[] __section("hoge") = "hoge";
  59 /* read-write orphan */
  60 char b[] __section("fuga") = { 'f', 'u', 'g', 'a', '\0' };
  61 /* .data */
  62 int c[1024] = { 123, 20, 1, 0 };
  63 /* .bss */
  64 int d = 0;
  65 /* .text */
  66 int main(void) { return 0; }
  67 EOF
  68         atf_check -s exit:0 -o ignore -e ignore cc -o test test.c
  69         readelf -S test |
  70         grep ' \.text\| hoge\| \.data\| fuga\| \.bss' >test.secs
  71         {
  72                 # Read-only orphan sections are placed after well-known
  73                 # read-only sections (.text, .rodata) but before .data.
  74                 match ".text" &&
  75                 match "hoge" &&
  76                 # Read-write orphan sections are placed after well-known
  77                 # read-write sections (.data) but before .bss.
  78                 match ".data" &&
  79                 match "fuga" &&
  80                 match ".bss" &&
  81                 :
  82         } < test.secs
  83         atf_check test "$?" -eq 0
  84 }
  85
  86 match() {
  87         read line
  88         case "$line" in
  89         *"$1"*) return 0;
  90         esac
  91         return 1
  92 }
  93
  94 ################################################################################
  95
  96 atf_init_test_cases()
  97 {
  98         atf_add_test_case startstop
  99         atf_add_test_case orphan
 100 }