Commit 850fad7d authored by Zhangjin Wu's avatar Zhangjin Wu Committed by Willy Tarreau
Browse files

selftests/nolibc: allow test -include /path/to/nolibc.h 



As the head comment of nolibc-test.c shows, it can be built in 3 ways:

    $(CC) -nostdlib -include /path/to/nolibc.h => NOLIBC already defined
    $(CC) -nostdlib -I/path/to/nolibc/sysroot  => _NOLIBC_* guards are present
    $(CC) with default libc                    => NOLIBC* never defined

Only last two of them are tested currently, let's allow test the first one too.

This may help to find issues about using nolibc.h to build programs. it
derives from this change:

    commit 3a8039e2 ("tools/nolibc: Fix build of stdio.h due to header ordering")

Usage:

    // test with sysroot by default
    $ make run-user

    // test without sysroot, using nolibc.h directly
    $ make run-user NOLIBC_SYSROOT=0

Signed-off-by: default avatarZhangjin Wu <falcon@tinylab.org>
Signed-off-by: default avatarWilly Tarreau <w@1wt.eu>
parent b8143407

tools/testing/selftests/nolibc/Makefile

+6 −0
Original line number Diff line number Diff line
@@ -126,9 +126,15 @@ sysroot/$(ARCH)/include: 
	$(Q)$(MAKE) -C ../../../include/nolibc ARCH=$(ARCH) OUTPUT=$(CURDIR)/sysroot/ headers_standalone

	$(Q)mv sysroot/sysroot sysroot/$(ARCH)



ifneq ($(NOLIBC_SYSROOT),0)

nolibc-test: nolibc-test.c sysroot/$(ARCH)/include

	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \

	  -nostdlib -static -Isysroot/$(ARCH)/include $< -lgcc

else

nolibc-test: nolibc-test.c

	$(QUIET_CC)$(CC) $(CFLAGS) $(LDFLAGS) -o $@ \

	  -nostdlib -static -include ../../../include/nolibc/nolibc.h $< -lgcc

endif



libc-test: nolibc-test.c

	$(QUIET_CC)$(CC) -o $@ $<