unit-tests/test-cases/cstring-labels/Makefile

   1 ##
   2 # Copyright (c) 2008 Apple Inc. All rights reserved.
   3 #
   4 # @APPLE_LICENSE_HEADER_START@
   5 #
   6 # This file contains Original Code and/or Modifications of Original Code
   7 # as defined in and that are subject to the Apple Public Source License
   8 # Version 2.0 (the 'License'). You may not use this file except in
   9 # compliance with the License. Please obtain a copy of the License at
  10 # http://www.opensource.apple.com/apsl/ and read it before using this
  11 # file.
  12 #
  13 # The Original Code and all software distributed under the License are
  14 # distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  15 # EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  16 # INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  17 # FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
  18 # Please see the License for the specific language governing rights and
  19 # limitations under the License.
  20 #
  21 # @APPLE_LICENSE_HEADER_END@
  22 ##
  23 TESTROOT = ../..
  24 include ${TESTROOT}/include/common.makefile
  25
  26 #
  27 # <rdar://problem/6069861> ld -r for x86_64 is changing visibility of cstring constants
  28 #
  29 # In order to coalesce strings from different .o files, the linker internally
  30 # makes them weak/hidden.  Test to make sure that weak/hidden does not leak out.
  31 #
  32
  33 ifeq (${ARCH},x86_64)
  34         STRING_LABEL_COUNT = 3
  35 else
  36         STRING_LABEL_COUNT = 1
  37 endif
  38
  39
  40
  41 run: all
  42
  43 all:
  44         ${CC} ${CCFLAGS} -c foo.c -o foo.o
  45         ${CC} ${CCFLAGS} -c bar.c -o bar.o
  46         ${LD} -arch ${ARCH} -r foo.o bar.o -o foobar.o
  47         nm -nm foobar.o | grep __cstring | grep "weak private external" | ${FAIL_IF_STDIN}
  48         ${LD} -arch ${ARCH} -r foo.o bar.o -o foobar.o -keep_private_externs
  49         nm -nm foobar.o | grep __cstring | grep "weak private external" | ${FAIL_IF_STDIN}
  50         nm -m foobar.o | grep __cstring | wc -l | grep ${STRING_LABEL_COUNT}  | ${FAIL_IF_EMPTY}
  51         ${CC} ${CCFLAGS} foo.o bar.o -dynamiclib -o libfoobar.dylib
  52         nm -m libfoobar.dylib | grep __cstring | wc -l | grep 1  | ${FAIL_IF_EMPTY}
  53         ${PASS_IFF} /usr/bin/true
  54
  55 clean:
  56         rm  foo.o bar.o foobar.o libfoobar.dylib