[Qemu-devel] [PATCH] Put all trace.o into libqemuutil.a

[Xu, Anthony]

Put all trace.o into libqemuutil.a

Currently all trace.o are linked into qemu-system, qemu-img, 
qemu-nbd, qemu-io etc., even the corresponding components 
are not included.
Put all trace.o into libqemuutil.a that the linker would only pull in .o 
files containing symbols that are actually referenced by the 
program.


Signed-off -by: Anthony Xu <address@hidden>



diff --git a/Makefile b/Makefile
index 6c359b2..31d41a7 100644
--- a/Makefile
+++ b/Makefile
@@ -346,7 +346,7 @@ dtc/%:
        mkdir -p $@

 $(SUBDIR_RULES): libqemuutil.a libqemustub.a $(common-obj-y) $(chardev-obj-y) \
-       $(qom-obj-y) $(crypto-aes-obj-$(CONFIG_USER_ONLY)) $(trace-obj-y)
+       $(qom-obj-y) $(crypto-aes-obj-$(CONFIG_USER_ONLY))

 ROMSUBDIR_RULES=$(patsubst %,romsubdir-%, $(ROMS))
 # Only keep -O and -g cflags
@@ -366,11 +366,11 @@ Makefile: $(version-obj-y)
 # Build libraries

 libqemustub.a: $(stub-obj-y)
-libqemuutil.a: $(util-obj-y)
+libqemuutil.a: $(util-obj-y) $(trace-obj-y)

 ######################################################################

-COMMON_LDADDS = $(trace-obj-y) libqemuutil.a libqemustub.a
+COMMON_LDADDS = libqemuutil.a libqemustub.a

 qemu-img.o: qemu-img-cmds.h

diff --git a/Makefile.target b/Makefile.target
index d5ff0c7..69239e0 100644
--- a/Makefile.target
+++ b/Makefile.target
@@ -185,8 +185,7 @@ dummy := $(call unnest-vars,.., \
                qom-obj-y \
                io-obj-y \
                common-obj-y \
-               common-obj-m \
-               trace-obj-y)
+               common-obj-m)
 target-obj-y := $(target-obj-y-save)
 all-obj-y += $(common-obj-y)
 all-obj-y += $(target-obj-y)
@@ -198,7 +197,7 @@ all-obj-$(CONFIG_SOFTMMU) += $(io-obj-y)

 $(QEMU_PROG_BUILD): config-devices.mak

-COMMON_LDADDS = $(trace-obj-y) ../libqemuutil.a ../libqemustub.a
+COMMON_LDADDS = ../libqemuutil.a ../libqemustub.a

 # build either PROG or PROGW
 $(QEMU_PROG_BUILD): $(all-obj-y) $(COMMON_LDADDS)
diff --git a/tests/Makefile.include b/tests/Makefile.include
index f3de81f..579ec07 100644
--- a/tests/Makefile.include
+++ b/tests/Makefile.include
@@ -519,7 +519,7 @@ QEMU_CFLAGS += -I$(SRC_PATH)/tests


 # Deps that are common to various different sets of tests below
-test-util-obj-y = $(trace-obj-y) libqemuutil.a libqemustub.a
+test-util-obj-y = libqemuutil.a libqemustub.a
 test-qom-obj-y = $(qom-obj-y) $(test-util-obj-y)
 test-qapi-obj-y = tests/test-qapi-visit.o tests/test-qapi-types.o \
        tests/test-qapi-event.o tests/test-qmp-introspect.o \