ld64-133.3.tar.gz

[apple/ld64.git] / unit-tests / test-cases / tentative-and-archive / Makefile

##
# Copyright (c) 2008 Apple Inc. All rights reserved.
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# This file contains Original Code and/or Modifications of Original Code
# as defined in and that are subject to the Apple Public Source License
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# http://www.opensource.apple.com/apsl/ and read it before using this
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##
TESTROOT = ../..
include ${TESTROOT}/include/common.makefile

SHELL = bash # use bash shell so we can redirect just stderr


#
# Test how tentative definitions interact with archives
# main.c has a tenative definition for _var which 
# should cause libfoo.a(foo.o) to be loaded which in turn
# should cause _bar from libbar.dylib to be used.
#
# <rdar://problem/5779681> ld crashes building XsanFS
# <rdar://problem/5852023> -undefined dynamic_lookup causes spurious extra symbols
# <rdar://problem/5613343> need to search for definitions for common symbols
#

run: all

all:
	${CC} ${CCFLAGS} bar.c -dynamiclib -o libbar.dylib
	${CC} ${CCFLAGS} foo.c -c -o foo.o
	libtool -static foo.o -o libfoo.a 
	${CC} ${CCFLAGS} main.c libfoo.a libbar.dylib -o main
	# verify _foo got pulled in because _var was a tentative in main.o
	nm main | grep "_foo" | ${FAIL_IF_EMPTY}
	# verify -dead_strip pulls in non-tentative _var from libfoo.a
	${CC} ${CCFLAGS} main.c libfoo.a libbar.dylib -o main -dead_strip
	nm -m main | grep "_var" | grep __data | ${FAIL_IF_EMPTY}
	# verify dynamic_lookup works and has no duplicate symbols
	${CC} ${CCFLAGS} main.c libfoo.a -o main -undefined dynamic_lookup
	nm -m main | grep "looked up" | ${FAIL_IF_EMPTY}
	${PASS_IFF_GOOD_MACHO} main
		

clean:
	rm -rf main libfoo.a foo.o libbar.dylib