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-rw-r--r--Makefile.rules7
1 files changed, 7 insertions, 0 deletions
diff --git a/Makefile.rules b/Makefile.rules
index 915766051a..a8357a5b93 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -57,6 +57,11 @@ endif
# the resulting ec.bin
export STATIC_VERSION
+# Commonly used compiler options used in these scripts
+#
+# -MT explicitly sets target file name in generated .d files to work around
+# a ccache issue.
+
# commands to build all targets
cmd_libec = $(LD) -r $^ -o $@.1.o ${silent_err} && \
$(OBJCOPY) --localize-hidden $@.1.o $@.2.o ${silent_err} && \
@@ -599,6 +604,8 @@ $(out)/tags: $(out)/cscope.files
npx-monitor-dir:
$(Q)mkdir -p ${out}/chip/npcx/spiflashfw
+# See "Commonly used compiler options" for more documentation
+
# TODO: optional make rules for PROJECT_EXTRA
$(npcx-monitor-fw-bin):$(npcx-monitor-fw).c npx-monitor-dir
$(if $(V),,@echo ' EXTBIN ' $(subst $(out)/,,$@) ; )