X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=Makefile.am;h=de22e0d84021d2aedff6300ab3a1fc9024f5d40f;hb=d6322067aa791234d0d81e1a6b03b445635d5f65;hp=f881570042b5b16d1844c32902c64f8b14b35c45;hpb=25123621e72daf757b53fe8b5f28130a98016988;p=ust.git diff --git a/Makefile.am b/Makefile.am index f881570..de22e0d 100644 --- a/Makefile.am +++ b/Makefile.am @@ -1,5 +1,11 @@ ACLOCAL_AMFLAGS = -I m4 -SUBDIRS = libust tests libmallocwrap ustd ustctl libinterfork include + +# The order here is tricky. SUBDIRS applies both to compilation and +# installation. Programs depending on the libs must be built after +# libust and '.' (that contains the linker script). However, '.' +# must be installed after libust so it can overwrite libust.so with +# the linker script. +SUBDIRS = snprintf libust . tests libmallocwrap ustd ustctl libinterfork include EXTRA_DIST = doc libust.ldscript.in libust-initializer.c dist_bin_SCRIPTS = usttrace @@ -7,11 +13,12 @@ dist_bin_SCRIPTS = usttrace ldscriptsdir = $(libdir) ldscripts_DATA = libust.so libust-initializer.o -CLEANFILES = $(ldscripts_DATA) +CLEANFILES = $(ldscripts_DATA) ./tests/libust-initializer.Po -libust_FORMAT := $(shell case $(shell uname -m) in (i*86) echo elf32-i386 ;; (x86_64) echo elf64-x86-64 ;; (ppc) echo elf32-powerpc ;; (ppc64) echo elf64-powerpc ;; (s390) echo elf32-s390 ;; (s390x) echo elf64-s390 ;; esac) libust.so: libust.ldscript.in - $(SED) -e "s@\@FORMAT\@@${libust_FORMAT}@" -e "s@\@PATH\@@${libdir}@g" < $< > $@ + $(SED) -e "s@\@FORMAT\@@$(LIBFORMAT)@" < $< > $@ +# It is very important to compile the initializer with PIC otherwise we +# may get obscure errors when linking to shared libraries. libust-initializer.o: libust-initializer.c - $(CC) -c $(CFLAGS) -o $@ $< + $(CC) $(CFLAGS) -fPIC -c -I$(top_srcdir)/include -o $@ $<