[sr-dev] git:sr_3.0: make: fix CPU reset in some conditions

Andrei Pelinescu-Onciul andrei at iptel.org
Wed Mar 17 20:57:27 CET 2010


Module: sip-router
Branch: sr_3.0
Commit: 4950c885cc89f946cecb7f51129f08ec7ddd875d
URL:    http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=4950c885cc89f946cecb7f51129f08ec7ddd875d

Author: Andrei Pelinescu-Onciul <andrei at iptel.org>
Committer: Andrei Pelinescu-Onciul <andrei at iptel.org>
Date:   Wed Mar 10 17:30:39 2010 +0100

make: fix CPU reset in some conditions

In some cases like trying to build a package with debug config
(e.g. make cfg mode=debug; .... ; make deb), the CPU make variable
was reset resulting in a build failure. This happens because in
the debug config CPU is not set and hence is  saved as empty.
Trying to build a package will start a sub-make which will try to
re-do the config without debugging (make cfg), but the CPU
variable with and empty value will be inherited from the
environment and thus the CPU?=something lines won't have any
effect.
The fix replaces CPU?=something with
$(call set_if_empty,CPU,something)
This works around having an empty CPU in the environment.

Reported-by: Jan Janak  <jan at iptel.org>
(cherry-picked from commit 0b2d2c6e99dac2bd171f1c24bfa6f285f6539273)

---

 Makefile.defs |   61 +++++++++++++++++++++++++++++---------------------------
 1 files changed, 32 insertions(+), 29 deletions(-)

diff --git a/Makefile.defs b/Makefile.defs
index 358e99c..d612d4a 100644
--- a/Makefile.defs
+++ b/Makefile.defs
@@ -115,8 +115,19 @@ ifeq ($(quiet),verbose)
 $(info normal Makefile.defs exec)
 endif # verbose
 
+# usage: $(call set_if_empty,VAR,value)
+set_if_empty=$(if $($(1)),,$(eval override $(1)=$(2)))
+
 # flavour: sip-router, ser or kamailio
-FLAVOUR=sip-router
+$(call	set_if_empty,FLAVOUR,sip-router)
+
+#prefix for various configs and scripts
+#config name/name-prefix for distributed configs
+CFG_NAME=sip-router
+#config name/name-prefix for distributed scripts
+SCR_NAME=sip-router
+#name in source tree
+SRC_NAME=sip-router
 
 ifeq ($(FLAVOUR),sip-router)
 # main binary name
@@ -132,14 +143,6 @@ else # default:
 MAIN_NAME=sip-router
 endif
 
-#prefix for various configs and scripts
-#config name/name-prefix for distributed configs
-CFG_NAME=sip-router
-#config name/name-prefix for distributed scripts
-SCR_NAME=sip-router
-#name in source tree
-SRC_NAME=sip-router
-
 # what to install
 INSTALL_FLAVOUR=$(FLAVOUR)
 
@@ -807,7 +810,7 @@ ifeq		($(CC_NAME), gcc)
 				CFLAGS=-g -O9 -funroll-loops  -Wcast-align $(PROFILE)
 			#if gcc 4.2+
 ifeq			($(CC_SHORTVER), 4.2+)
-					CPU ?= athlon64
+$(call				set_if_empty,CPU,athlon64)
 					CFLAGS+=-m32 -minline-all-stringops \
 							-falign-loops \
 							-ftree-vectorize \
@@ -817,7 +820,7 @@ ifeq			($(CC_SHORTVER), 4.2+)
 else
 			#if gcc 4.0+
 ifeq			($(CC_SHORTVER), 4.x)
-					CPU ?= athlon64
+$(call				set_if_empty,CPU,athlon64)
 					CFLAGS+=-m32 -minline-all-stringops \
 							-falign-loops \
 							-ftree-vectorize \
@@ -826,7 +829,7 @@ ifeq			($(CC_SHORTVER), 4.x)
 else
 			#if gcc 3.4+
 ifeq			($(CC_SHORTVER), 3.4)
-					CPU ?= athlon
+$(call				set_if_empty,CPU,athlon)
 					CFLAGS+=-m32 -minline-all-stringops \
 							-falign-loops \
 							-mtune=$(CPU) 
@@ -834,7 +837,7 @@ ifeq			($(CC_SHORTVER), 3.4)
 else
 			#if gcc 3.0+
 ifeq			($(CC_SHORTVER), 3.0)
-					CPU ?= athlon
+$(call				set_if_empty,CPU,athlon)
 					CFLAGS+=-minline-all-stringops \
 							-falign-loops \
 							-mcpu=$(CPU)
@@ -882,7 +885,7 @@ ifeq		($(CC_NAME), gcc)
 				CFLAGS=-g -O9 -funroll-loops  -Wcast-align $(PROFILE)
 			#if gcc 4.2+
 ifeq			($(CC_SHORTVER), 4.2+)
-					CPU ?= opteron
+$(call				set_if_empty,CPU,opteron)
 					CFLAGS+=-m64 -minline-all-stringops \
 							-falign-loops \
 							-ftree-vectorize \
@@ -892,7 +895,7 @@ ifeq			($(CC_SHORTVER), 4.2+)
 else
 			#if gcc 4.0+
 ifeq			($(CC_SHORTVER), 4.x)
-					CPU ?= opteron
+$(call				set_if_empty,CPU,opteron)
 					CFLAGS+=-m64 -minline-all-stringops \
 							-falign-loops \
 							-ftree-vectorize \
@@ -901,14 +904,14 @@ ifeq			($(CC_SHORTVER), 4.x)
 else
 			#if gcc 3.4
 ifeq			($(CC_SHORTVER), 3.4)
-					CPU ?= athlon64
+$(call				set_if_empty,CPU,athlon64)
 					CFLAGS+=-m64 -minline-all-stringops \
 							-falign-loops 
 					LDFLAGS+=-m64
 else
 			#if gcc 3.0
 ifeq			($(CC_SHORTVER), 3.0)
-					CPU ?= athlon64
+$(call				set_if_empty,CPU,athlon64)
 					CFLAGS+=-minline-all-stringops \
 							-falign-loops 
 							#-mcpu=$(CPU) \ # not working on all x86_64 gccs
@@ -959,7 +962,7 @@ ifeq		($(CC_NAME), gcc)
 					#-Wmissing-prototypes 
 				#if gcc 4.2+
 ifeq			($(CC_SHORTVER), 4.2+)
-					CPU ?= ultrasparc
+$(call				set_if_empty,CPU,ultrasparc)
 					#use 32bit for now
 					CFLAGS+=-m64 -mcpu=ultrasparc  \
 							-mtune=$(CPU) \
@@ -973,7 +976,7 @@ ifeq			($(CC_SHORTVER), 4.2+)
 else
 				#if gcc 4.x
 ifeq			($(CC_SHORTVER), 4.x)
-					CPU ?= ultrasparc
+$(call				set_if_empty,CPU,ultrasparc)
 					#use 32bit for now
 					CFLAGS+=-m64 -mcpu=ultrasparc  \
 							-mtune=$(CPU) \
@@ -982,14 +985,14 @@ ifeq			($(CC_SHORTVER), 4.x)
 else
 				#if gcc 3.4
 ifeq			($(CC_SHORTVER), 3.4)
-					CPU ?= ultrasparc
+$(call				set_if_empty,CPU,ultrasparc)
 					#use 32bit for now
 					CFLAGS+=-m64 -mcpu=ultrasparc -mtune=$(CPU)
 					LDFLAGS+=-m64
 else
 				#if gcc 3.0
 ifeq			($(CC_SHORTVER), 3.0)
-					CPU ?= ultrasparc
+$(call				set_if_empty,CPU,ultrasparc)
 					#use 32bit for now
 					CFLAGS+=-m64 -mcpu=ultrasparc -mtune=$(CPU)   \
 					# -mcpu=v9 or ultrasparc? # -mtune implied by -mcpu
@@ -1050,7 +1053,7 @@ ifeq		($(CC_NAME), gcc)
 					#-Wmissing-prototypes 
 				#if gcc 4.2+
 ifeq			($(CC_SHORTVER), 4.2+)
-					CPU ?= v8 
+$(call				set_if_empty,CPU,v8)
 					#use 32bit for now
 					CFLAGS+= -mtune=$(CPU) \
 							-fno-strict-overflow \
@@ -1058,20 +1061,20 @@ ifeq			($(CC_SHORTVER), 4.2+)
 else
 				#if gcc 4.x
 ifeq			($(CC_SHORTVER), 4.x)
-					CPU ?= v8 
+$(call				set_if_empty,CPU,v8)
 					#use 32bit for now
 					CFLAGS+= -mtune=$(CPU) \
 							-ftree-vectorize
 else
 				#if gcc 3.4
 ifeq			($(CC_SHORTVER), 3.4)
-					CPU ?= v8
+$(call				set_if_empty,CPU,v8)
 					#use 32bit for now
 					CFLAGS+= -mtune=$(CPU)
 else
 				#if gcc 3.0
 ifeq			($(CC_SHORTVER), 3.0)
-					CPU ?= v8 
+$(call				set_if_empty,CPU,v8)
 					#use 32bit for now
 					CFLAGS+= -mtune=$(CPU)   \
 					#-mno-epilogue #try to inline function exit code
@@ -1391,14 +1394,14 @@ ifeq		($(CC_NAME), gcc)
 				CFLAGS= -O9 -funroll-loops -fsigned-char $(PROFILE)
 			#if gcc 4.2+
 ifeq			($(CC_SHORTVER), 4.2+)
-					CPU ?= powerpc
+$(call				set_if_empty,CPU,powerpc)
 					CFLAGS+=-ftree-vectorize \
 							-fno-strict-overflow \
 							-mtune=$(CPU) -maltivec
 else
 			#if gcc 4.0+
 ifeq			($(CC_SHORTVER), 4.x)
-					CPU ?= powerpc
+$(call				set_if_empty,CPU,powerpc)
 					CFLAGS+=-ftree-vectorize \
 							-mtune=$(CPU) -maltivec
 else
@@ -1440,14 +1443,14 @@ ifeq		($(CC_NAME), gcc)
 				CFLAGS= -O9 -funroll-loops -fsigned-char $(PROFILE)
 			#if gcc 4.2+
 ifeq			($(CC_SHORTVER), 4.2+)
-					CPU ?= powerpc64
+$(call				set_if_empty,CPU,powerpc64)
 					CFLAGS+=-ftree-vectorize \
 							-fno-strict-overflow \
 							-mtune=$(CPU) -maltivec
 else
 			#if gcc 4.0+
 ifeq			($(CC_SHORTVER), 4.x)
-					CPU ?= powerpc64
+$(call				set_if_empty,CPU,powerpc64)
 					CFLAGS+=-ftree-vectorize \
 							-mtune=$(CPU) -maltivec
 else




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