diff options
Diffstat (limited to 'src/Makefile.housekeeping')
| -rw-r--r-- | src/Makefile.housekeeping | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping index 8ba7e441..7e7ad762 100644 --- a/src/Makefile.housekeeping +++ b/src/Makefile.housekeeping @@ -375,6 +375,35 @@ CFLAGS += -Werror ASFLAGS += --fatal-warnings endif +# Function trace recorder state in the last build. This is needed +# in order to correctly rebuild whenever the function recorder is +# enabled/disabled. +# +FNREC_STATE := $(BIN)/.fnrec.state +ifeq ($(wildcard $(FNREC_STATE)),) +FNREC_STATE_OLD := <invalid> +else +FNREC_STATE_OLD := $(shell cat $(FNREC_STATE)) +endif +ifeq ($(FNREC_STATE_OLD),$(FNREC)) +$(FNREC_STATE) : +else +$(FNREC_STATE) : clean +$(shell $(ECHO) "$(FNREC)" > $(FNREC_STATE)) +endif + +VERYCLEANUP += $(FNREC_STATE) +MAKEDEPS += $(FNREC_STATE) + +ifeq ($(FNREC),1) +# Enabling -finstrument-functions affects gcc's analysis and leads to spurious +# warnings about use of uninitialised variables. +# +CFLAGS += -Wno-uninitialized +CFLAGS += -finstrument-functions +CFLAGS += -finstrument-functions-exclude-file-list=core/fnrec.c +endif + # compiler.h is needed for our linking and debugging system # CFLAGS += -include compiler.h |