From 6c0e8c14be9546b49c097f5e6e8307bda3e7f5ac Mon Sep 17 00:00:00 2001
From: Michael Brown
Date: Sun, 30 May 2010 15:29:05 +0100
Subject: [libc] Enable automated extraction of error usage reports

Add preprocessor magic to the error definitions to enable every error
usage to be tracked.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
---
 src/Makefile.housekeeping | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

(limited to 'src/Makefile.housekeeping')

diff --git a/src/Makefile.housekeeping b/src/Makefile.housekeeping
index 2562e623..0d94987f 100644
--- a/src/Makefile.housekeeping
+++ b/src/Makefile.housekeeping
@@ -550,6 +550,18 @@ $(BIN)/embedded.o : override CC := env CCACHE_DISABLE=1 $(CC)
 
 CFLAGS_embedded = -DEMBED_ALL="$(EMBED_ALL)"
 
+# Generate error usage information
+#
+$(BIN)/%.einfo : $(BIN)/%.o
+	$(QM)$(ECHO) "  [EINFO] $@"
+	$(Q)$(OBJCOPY) -O binary -j .einfo --set-section-flags .einfo=alloc \
+		$< $@
+
+EINFOS		:= $(patsubst $(BIN)/%.o,$(BIN)/%.einfo,$(BOBJS))
+$(BIN)/errors : $(EINFOS) $(EINFO)
+	$(QM)$(ECHO) "  [EINFO] $@"
+	$(Q)$(EINFO) $(EINFOS) | sort > $@
+
 # Generate the NIC file from the parsed source files.  The NIC file is
 # only for rom-o-matic.
 #
@@ -902,6 +914,15 @@ $(ICCFIX) : util/iccfix.c $(MAKEDEPS)
 	$(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
 CLEANUP += $(ICCFIX)
 
+###############################################################################
+#
+# The error usage information utility
+#
+$(EINFO) : util/einfo.c $(MAKEDEPS)
+	$(QM)$(ECHO) "  [HOSTCC] $@"
+	$(Q)$(HOST_CC) -idirafter include -O2 -o $@ $<
+CLEANUP += $(EINFO)
+
 ###############################################################################
 #
 # Local configs
-- 
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