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-rw-r--r--erts/emulator/Makefile.in10
-rwxr-xr-xerts/emulator/beam/erl_bif_info.c4
-rwxr-xr-xerts/emulator/utils/gen_git_version40
3 files changed, 53 insertions, 1 deletions
diff --git a/erts/emulator/Makefile.in b/erts/emulator/Makefile.in
index 3e44bbb8db..7033ea0a3d 100644
--- a/erts/emulator/Makefile.in
+++ b/erts/emulator/Makefile.in
@@ -20,6 +20,8 @@
include $(ERL_TOP)/make/target.mk
include ../vsn.mk
include $(ERL_TOP)/make/$(TARGET)/otp.mk
+include $(TARGET)/gen_git_version.mk
+
ENABLE_ALLOC_TYPE_VARS = @ENABLE_ALLOC_TYPE_VARS@
HIPE_ENABLED=@HIPE_ENABLED@
@@ -196,7 +198,7 @@ else
EMU_CC = @EMU_CC@
endif
WFLAGS = @WFLAGS@
-CFLAGS = @STATIC_CFLAGS@ $(TYPE_FLAGS) $(FLAVOR_FLAGS) $(DEFS) $(WFLAGS) $(THR_DEFS) $(ARCHCFLAGS)
+CFLAGS = @STATIC_CFLAGS@ $(TYPE_FLAGS) $(FLAVOR_FLAGS) $(DEFS) $(WFLAGS) $(THR_DEFS) $(ARCHCFLAGS) $(GIT_VSN)
HCC = @HCC@
LD = @LD@
DEXPORT = @DEXPORT@
@@ -1006,6 +1008,12 @@ DEP_FLAGS=-MM $(MG_FLAG) $(CFLAGS) $(INCLUDES) -Idrivers/common -Idrivers/$(ERLA
SYS_SRC=$(ALL_SYS_SRC)
endif
+.PHONY: $(TARGET)/gen_git_version.mk
+$(TARGET)/gen_git_version.mk:
+# We touch beam/erl_bif.info.c if we regenerated the git version to force a
+# rebuild.
+ if $(gen_verbose)utils/gen_git_version $@; then touch beam/erl_bif_info.c; fi
+
.PHONY: depend
ifdef VOID_EMULATOR
depend:
diff --git a/erts/emulator/beam/erl_bif_info.c b/erts/emulator/beam/erl_bif_info.c
index a601e4fb39..8582a8954b 100755
--- a/erts/emulator/beam/erl_bif_info.c
+++ b/erts/emulator/beam/erl_bif_info.c
@@ -69,7 +69,11 @@ static char erts_system_version[] = ("Erlang " ERLANG_OTP_RELEASE
" [no-c-stack-objects]"
#endif
#ifndef OTP_RELEASE
+#ifdef ERLANG_GIT_VERSION
+ " [source-" ERLANG_GIT_VERSION "]"
+#else
" [source]"
+#endif
#endif
#ifdef ARCH_64
#if HALFWORD_HEAP
diff --git a/erts/emulator/utils/gen_git_version b/erts/emulator/utils/gen_git_version
new file mode 100755
index 0000000000..d93a97cbbb
--- /dev/null
+++ b/erts/emulator/utils/gen_git_version
@@ -0,0 +1,40 @@
+#!/bin/sh
+
+OUTPUT_FILE=$1
+
+if command -v git 2>&1 >/dev/null &&
+ test -d $ERL_TOP/.git -o -f $ERL_TOP/.git
+then
+ VSN=`git describe --match "OTP_R[0-9][0-9][A-B]*" HEAD`
+ case "$VSN" in
+ OTP_R*-g*)
+ VSN=`echo $VSN | sed -e 's/.*-g\\(.*\\)/\\1/g'` ;;
+ *) VSN="na" ;;
+ esac
+else
+ VSN="na"
+fi
+
+
+# Only update the file if there has been a change to
+# the version number.
+if test -r $OUTPUT_FILE
+then
+ VC=`sed -n -e 's/^.*"\\\\"\\(.*\\)\\\\"".*/\\1/p' < $OUTPUT_FILE`
+else
+ VC=unset
+fi
+echo "VSN = $VSN"
+echo "VC = $VC"
+if test "$VSN" != "$VC"
+then
+ echo "# Automatically generated by $0 - DO NOT EDIT." > $OUTPUT_FILE
+ if test "$VSN" = "na"
+ then
+ echo "# GIT_VSN=-DERLANG_GIT_VERSION=\"\\\"$VSN\\\"\"" >> $OUTPUT_FILE
+ else
+ echo "GIT_VSN=-DERLANG_GIT_VERSION=\"\\\"$VSN\\\"\"" >> $OUTPUT_FILE
+ fi
+ exit 0
+fi
+exit 1 \ No newline at end of file