On Thu, 7 Jan 2021 10:32:08 +0200
"Tzvetomir Stoyanov (VMware)" <tz.stoyanov@xxxxxxxxx> wrote:
> Unit test must test the library located in the sorce tree, instead the
> one installed in the system.
I don't think this does what you want it to do.
>
> Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@xxxxxxxxx>
> ---
> utest/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/utest/Makefile b/utest/Makefile
> index 403540a..6e9c760 100644
> --- a/utest/Makefile
> +++ b/utest/Makefile
> @@ -12,7 +12,7 @@ OBJS += tracefs-utest.o
>
> LIBS += -lcunit \
> -ldl \
> - -L$(obj)/lib/tracefs -ltracefs
> + -L$(obj)/lib/tracefs -l:libtracefs.a
>
> OBJS := $(OBJS:%.o=$(bdir)/%.o)
> DEPS := $(OBJS:$(bdir)/%.o=$(bdir)/.%.d)
OK, I added to src/tracefs_events.c:
void tracefs_hello(void)
{
printf("hello world!\n");
}
And then to utest/trace-utest.c in main():
void tracefs_hello(void);
tracefs_hello();
And try building. It caused this:
/usr/bin/ld: /work/git/libtracefs.git/utest/trace-utest.o: in function `main':
/work/git/libtracefs.git/utest/trace-utest.c:38: undefined reference to `tracefs_hello'
collect2: error: ld returned 1 exit status
That's because I have libtracefs.a installed as well as libtracefs.so, and
it is using the system libtracefs.a and not the local one.
But by making the following change:
diff --git a/utest/Makefile b/utest/Makefile
index 6e9c760..4899365 100644
--- a/utest/Makefile
+++ b/utest/Makefile
@@ -12,7 +12,7 @@ OBJS += tracefs-utest.o
LIBS += -lcunit \
-ldl \
- -L$(obj)/lib/tracefs -l:libtracefs.a
+ $(obj)/lib/tracefs/libtracefs.a
OBJS := $(OBJS:%.o=$(bdir)/%.o)
DEPS := $(OBJS:$(bdir)/%.o=$(bdir)/.%.d)
It builds.
I just use the full path to the library, instead of using the linker option.
-- Steve
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