diff options
Diffstat (limited to 'libc/unistd/Makefile')
| -rw-r--r-- | libc/unistd/Makefile | 46 |
1 files changed, 42 insertions, 4 deletions
diff --git a/libc/unistd/Makefile b/libc/unistd/Makefile index c1ff28575..6873102b0 100644 --- a/libc/unistd/Makefile +++ b/libc/unistd/Makefile @@ -24,9 +24,16 @@ TOPDIR=../ include $(TOPDIR)Rules.mak LIBC=$(TOPDIR)libc.a - CSRC=execl.c execlp.c execv.c execvep.c execvp.c getcwd.c getopt.c \ - sleep.c sysconf.c getpass.c + sleep.c getpass.c sysconf_src.c + +# TESTING -- comment this out if it breaks for you +ifeq ($(TARGET_ARCH), $(NATIVE_ARCH)) + SYSCONF = sysconf_native +else + SYSCONF = sysconf_$(TARGET_ARCH).c +endif + COBJS=$(patsubst %.c,%.o, $(CSRC)) MSRC=gnu_getopt.c @@ -36,13 +43,44 @@ MOBJ=_gnu_getopt_internal.o gnu_getopt_long.o gnu_getopt_long_only.o # over gnu_getopt when appropriate. OBJS=$(COBJS) $(MOBJ) -all: $(OBJS) $(LIBC) +all: $(SYSCONF) $(OBJS) $(LIBC) $(LIBC): ar-target subdirs ar-target: $(OBJS) $(AR) $(ARFLAGS) $(LIBC) $(OBJS) +# We are cross-compiling so use the generic sysconf.c. +sysconf_$(TARGET_ARCH).c: sysconf.c + @echo warning: sysconf_$(NATIVE_ARCH).c is older then sysconf.c so using generic sysconf.c + @echo To build sysconf_$(NATIVE_ARCH).c run gen_sysconf \> sysconf_$(NATIVE_ARCH).c on + @echo your target platform, place in the unistd directory, and rebuild + cp -f sysconf.c sysconf_src.c + +# We are compiling for the native platform, so build an optimized sysconf.c. +sysconf_native: sysconf.c + $(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH -c sysconf.c -o sysconf_tester.o + $(CC) $(CFLAGS) -D_UCLIBC_GENERATE_SYSCONF_ARCH -c ../sysdeps/linux/common/getpagesize.c -o getpagesize_tester.o + @ld -r -o gen_sysconf_tester.o sysconf_tester.o getpagesize_tester.o + @if nm -s gen_sysconf_tester.o | grep -v "U errno" | grep " U " ;\ + then \ + echo warning: missing symbols in gen_sysconf_tester.o so using generic sysconf.c ;\ + cp -f sysconf.c sysconf_src.c ;\ + else \ + if ../extra/gcc-uClibc/gcc-uClibc-$(NATIVE_ARCH) -static -D_UCLIBC_GENERATE_SYSCONF_MAIN sysconf.c sysconf_tester.o -o gen_sysconf && \ + ./gen_sysconf > sysconf_$(NATIVE_ARCH).c ;\ + then \ + echo successfully built sysconf_$(NATIVE_ARCH).c ;\ + else \ + echo warning: build of gen_sysconf failed so using generic sysconf.c ;\ + cp -f sysconf.c sysconf_$(NATIVE_ARCH).c ;\ + fi ;\ + fi + +sysconf_src.c: sysconf_$(TARGET_ARCH).c + cp -f sysconf_$(TARGET_ARCH).c sysconf_src.c + + $(COBJS): %.o : %.c $(CC) $(CFLAGS) -c $< -o $@ $(STRIPTOOL) -x -R .note -R .comment $*.o @@ -63,5 +101,5 @@ $(patsubst %, _dirclean_%, $(DIRS)) : dummy $(MAKE) -C $(patsubst _dirclean_%, %, $@) clean clean: - rm -f *.[oa] *~ core + rm -f *.[oa] *~ core gen_sysconf sysconf_*.c |