Refactored ErrorCode into it's own class

sandbox/linux/seccomp-bpf/Makefile

Index: sandbox/linux/seccomp-bpf/Makefile
diff --git a/sandbox/linux/seccomp-bpf/Makefile b/sandbox/linux/seccomp-bpf/Makefile
index eb3cde6b97354fc04f384148785e10290141e2d6..930524bc7a831019c9dfe3bbe8c1ce2d8474de76 100644
--- a/sandbox/linux/seccomp-bpf/Makefile
+++ b/sandbox/linux/seccomp-bpf/Makefile
@@ -1,8 +1,8 @@
-CFLAGS = -g -O3 -Wall -Werror -Wextra -Wno-missing-field-initializers -fPIC -I.
-CPPFLAGS = -D_GNU_SOURCE -DSECCOMP_BPF_STANDALONE -iquote ../../..
-LDFLAGS = -g -lpthread
+DEF_CFLAGS = -g -O3 -Wall -Werror -Wextra -Wno-missing-field-initializers -fPIC -I.
+DEF_CPPFLAGS = -D_GNU_SOURCE -DSECCOMP_BPF_STANDALONE -DSECCOMP_BPF_VALGRIND_HACKS -iquote ../../..
+DEF_LDFLAGS = -g -lpthread
 DEPFLAGS = -MMD -MF .$@.d
-MODS := demo sandbox_bpf util verifier
+MODS := demo sandbox_bpf errorcode util verifier
 OBJS64 := $(shell echo ${MODS} | xargs -n 1 | sed -e 's/$$/.o64/')
 OBJS32 := $(shell echo ${MODS} | xargs -n 1 | sed -e 's/$$/.o32/')
 ALL_OBJS = $(OBJS32) $(OBJS64)
@@ -20,11 +20,11 @@ clean:
 -include $(DEP_FILES)
 
 demo32: ${OBJS32}
-	${CXX} -m32 -o $@ $+ ${LDFLAGS}
+	${CXX} -m32 -o $@ $+ ${DEF_LDFLAGS} ${LDFLAGS}
 demo64: ${OBJS64}
-	${CXX} -m64 -o $@ $+ ${LDFLAGS}
+	${CXX} -m64 -o $@ $+ ${DEF_LDFLAGS} ${LDFLAGS}
 
 .cc.o32:
-	${CXX} -m32 ${CFLAGS} ${CPPFLAGS} ${DEPFLAGS} -c -o $@ $<
+	${CXX} -m32 ${DEF_CFLAGS} ${DEF_CPPFLAGS} ${CFLAGS} ${CPPFLAGS} ${DEPFLAGS} -c -o $@ $<
 .cc.o64:
-	${CXX} -m64 ${CFLAGS} ${CPPFLAGS} ${DEPFLAGS} -c -o $@ $<
+	${CXX} -m64 ${DEF_CFLAGS} ${DEF_CPPFLAGS} ${CFLAGS} ${CPPFLAGS} ${DEPFLAGS} -c -o $@ $<