Commit 08b96aa9 authored by Thomas Weißschuh's avatar Thomas Weißschuh
Browse files

selftests/nolibc: only use libgcc when really necessary 



nolibc should work without libgcc to be compatible with as many
toolchains as possible. Currently the functionality tested by
nolibc-test does not contain any dependencies, make sure it stays
this way by not linking libgcc anymore.

On the ppc target GCC always emits references to '_restgpr_' functions,
so keep linking libgcc there.

Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Acked-by: default avatarWilly Tarreau <w@1wt.eu>
Link: https://patch.msgid.link/20260404-nolibc-libgcc-v1-1-eb3ecfe0e176@weissschuh.net
parent e70a7bb5

tools/testing/selftests/nolibc/Makefile.nolibc

+4 −13
Original line number Diff line number Diff line
@@ -232,23 +232,14 @@ ifeq ($(origin XARCH),command line) 
CFLAGS_XARCH = $(CFLAGS_$(XARCH))

endif



LDLIBS_ppc = $(if $(LLVM),,-lgcc)

LDLIBS = $(LDLIBS_$(XARCH))



include Makefile.include



CFLAGS  ?= $(CFLAGS_NOLIBC_TEST) $(CFLAGS_XARCH) $(CFLAGS_EXTRA)

LDFLAGS :=



LIBGCC := -lgcc



ifeq ($(ARCH),x86)

# Not needed on x86, probably not present for x32

LIBGCC :=

endif



ifneq ($(LLVM),)

# Not needed for clang

LIBGCC :=

endif



# Modify CFLAGS based on LLVM=

include $(srctree)/tools/scripts/Makefile.include
@@ -304,7 +295,7 @@ sysroot/$(ARCH)/include: 


nolibc-test: $(NOLIBC_TEST_SOURCES) sysroot/$(ARCH)/include

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

	  -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include $(NOLIBC_TEST_SOURCES) $(LIBGCC)

	  -nostdlib -nostdinc -static -Isysroot/$(ARCH)/include $(NOLIBC_TEST_SOURCES) $(LDLIBS)



libc-test: $(NOLIBC_TEST_SOURCES)

	$(QUIET_CC)$(HOSTCC) -o $@ $(NOLIBC_TEST_SOURCES)