On Mon, 2025-01-06 at 20:27 +0000, Ihor Solodrai wrote: > Latest versions of GCC BPF use C23 standard by default. This causes > compilation errors in vmlinux.h due to bool types declarations. > > Pass -std=gnu17 when building selftests BPF objects with GCC. > > For more details see the discussion at [1]. > > [1] https://lore.kernel.org/bpf/EYcXjcKDCJY7Yb0GGtAAb7nLKPEvrgWdvWpuNzXm2qi6rYMZDixKv5KwfVVMBq17V55xyC-A1wIjrqG3aw-Imqudo9q9X7D7nLU2gWgbN0w=@pm.me/ > > CC: Jose E. Marchesi <jose.marchesi@xxxxxxxxxx> > Signed-off-by: Ihor Solodrai <ihor.solodrai@xxxxx> > --- > tools/testing/selftests/bpf/Makefile | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/tools/testing/selftests/bpf/Makefile b/tools/testing/selftests/bpf/Makefile > index d5be2f94deef..d81bb4773cb7 100644 > --- a/tools/testing/selftests/bpf/Makefile > +++ b/tools/testing/selftests/bpf/Makefile > @@ -479,9 +479,10 @@ define CLANG_CPUV4_BPF_BUILD_RULE > $(Q)$(CLANG) $3 -O2 $(BPF_TARGET_ENDIAN) -c $1 -mcpu=v4 -o $2 > endef > # Build BPF object using GCC > +GCC_BPF_CFLAGS += -std=gnu17 -DBPF_NO_PRESERVE_ACCESS_INDEX -Wno-attributes
