[DTrace-devel] [PATCH] bpf: compile BPF library functions with -ffreestanding

[Kris Van Hees]

Per Jose, we should be compiling our BPF code with -ffreestanding to
ensure that BPF-specific standard header files are used instead of
host-specific ones.

Signed-off-by: Kris Van Hees <kris.van.hees at oracle.com>
---
 GNUmakefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/GNUmakefile b/GNUmakefile
index b8e09f574..7ad857f88 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -127,7 +127,7 @@ PREPROCESS = $(CC) -E
 export BPFC ?= bpf-unknown-none-gcc
 
 BPFCPPFLAGS += -D$(subst sparc64,__sparc,$(subst aarch64,__aarch64__,$(subst x86_64,__amd64,$(ARCH))))
-BPFCFLAGS ?= -O2 -Wall -Wno-unknown-pragmas $(if $(HAVE_BPFV3),-mcpu=v3) $(if $(HAVE_BPFMASM),-masm=normal)
+BPFCFLAGS ?= -O2 -Wall -Wno-unknown-pragmas $(if $(HAVE_BPFV3),-mcpu=v3) $(if $(HAVE_BPFMASM),-masm=normal) -ffreestanding
 export BPFLD ?= bpf-unknown-none-ld
 
 all::
-- 
2.45.2