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authorMatt Fleming <matt.fleming@intel.com>2012-07-12 20:35:14 +0100
committerMatt Fleming <matt.fleming@intel.com>2012-07-20 17:55:14 +0100
commit5c88d800a5d612ceb2339476c544f09410b5a454 (patch)
treeac4dad47ce8969191506428fd6736cfb94fc5296 /com32
parentf0bbf9dd40f37f8c4870a33784996efd56955a75 (diff)
downloadsyslinux-5c88d800a5d612ceb2339476c544f09410b5a454.tar.gz
syslinux-5c88d800a5d612ceb2339476c544f09410b5a454.tar.xz
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com32: Use --as-needed for LDFLAGS
This extends commit 4678fd92a21e ("elflink: fix dependency problem in cmenu/Makefile") and basically reverts commit fb543aa635ff ("com32: Per-object file LDFLAGS"). By using the --as-needed ld argument we can specify all the required shared libraries for a directory, even if not all of the libraries are needed by every .c32 file. --as-needed takes care of only creating DT_NEEDED entries for the shared libraries that are actually required to resolve undefined symbols in a given module. Furthermore, by using $(LIBS) we create a dependency between .c32 files and their shared libraries, which allows multiple make jobs to run in parallel. Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'com32')
-rw-r--r--com32/cmenu/Makefile8
-rw-r--r--com32/modules/Makefile18
-rw-r--r--com32/rosh/Makefile4
-rw-r--r--com32/samples/Makefile5
4 files changed, 11 insertions, 24 deletions
diff --git a/com32/cmenu/Makefile b/com32/cmenu/Makefile
index c6e0cae3..beb8dd28 100644
--- a/com32/cmenu/Makefile
+++ b/com32/cmenu/Makefile
@@ -17,16 +17,16 @@
NOGPL := 1
+LIBS = libmenu/libmenu.c32 \
+ $(com32)/libutil/libutil_com.c32 \
+ $(com32)/lib/libcom32.c32
+
topdir = ../..
MAKEDIR = $(topdir)/mk
include $(MAKEDIR)/elf.mk
CFLAGS += -I./libmenu
-LIBS = libmenu/libmenu.c32 \
- $(com32)/libutil/libutil_com.c32 \
- $(com32)/lib/libcom32.c32
-
LIBMENU = libmenu/syslnx.o libmenu/com32io.o libmenu/tui.o \
libmenu/menu.o libmenu/passwords.o libmenu/des.o libmenu/help.o \
$(com32)/libutil/libutil_com.c32 $(com32)/lib/libcom32.c32
diff --git a/com32/modules/Makefile b/com32/modules/Makefile
index 8d94cfec..8f5b7692 100644
--- a/com32/modules/Makefile
+++ b/com32/modules/Makefile
@@ -15,6 +15,9 @@
## COM32 standard modules
##
+LIBS = $(com32)/gpllib/libcom32gpl.c32 $(com32)/lib/libcom32.c32 \
+ $(com32)/libutil/libutil_com.c32
+
topdir = ../..
MAKEDIR = $(topdir)/mk
include $(MAKEDIR)/elf.mk
@@ -28,21 +31,6 @@ MODULES = config.c32 ethersel.c32 dmitest.c32 cpuidtest.c32 \
TESTFILES =
-LDFLAGS_cpuidtest.o = $(com32)/gpllib/libcom32gpl.c32
-LDFLAGS_disk.o = $(com32)/gpllib/libcom32gpl.c32
-LDFLAGS_ethersel.o = $(com32)/lib/libcom32.c32
-LDFLAGS_gpxecmd.o = $(com32)/lib/libcom32.c32
-LDFLAGS_host.o = $(com32)/lib/libcom32.c32
-LDFLAGS_ifcpu.o = $(com32)/libutil/libutil_com.c32 \
- $(com32)/gpllib/libcom32gpl.c32
-LDFLAGS_kbdmap.o = $(com32)/lib/libcom32.c32
-LDFLAGS_linux.o = $(com32)/lib/libcom32.c32
-LDFLAGS_pxechn.o = $(com32)/lib/libcom32.c32 \
- $(com32)/libutil/libutil_com.c32
-LDFLAGS_sanboot.o = $(com32)/lib/libcom32.c32
-LDFLAGS_vpdtest.o = $(com32)/gpllib/libcom32gpl.c32
-LDFLAGS_zzjson.o = $(com32)/gpllib/libcom32gpl.c32
-
all: $(MODULES) $(TESTFILES)
.PRECIOUS: %.o
diff --git a/com32/rosh/Makefile b/com32/rosh/Makefile
index f3283952..a894c847 100644
--- a/com32/rosh/Makefile
+++ b/com32/rosh/Makefile
@@ -16,6 +16,8 @@
## ROSH Read Only Shell
##
+LIBS = $(com32)/libutil/libutil_com.c32 $(com32)/lib/libcom32.c32
+
topdir = ../..
MAKEDIR = $(topdir)/mk
include $(MAKEDIR)/rosh.mk
@@ -34,8 +36,6 @@ endif
CFLAGS += -DDATE='"$(DATE)"'
LNXCFLAGS += -DDATE='"$(DATE)"'
-LDFLAGS_rosh.o = $(com32)/libutil/libutil_com.c32 $(com32)/lib/libcom32.c32
-
rosh.o: rosh.h
rosh.lo: rosh.h
diff --git a/com32/samples/Makefile b/com32/samples/Makefile
index bca197ed..c7abaddb 100644
--- a/com32/samples/Makefile
+++ b/com32/samples/Makefile
@@ -14,13 +14,12 @@
## samples for syslinux users
##
+LIBS = $(com32)/libutil/libutil_com.c32
+
topdir = ../..
MAKEDIR = $(topdir)/mk
include $(MAKEDIR)/elf.mk
-LDFLAGS_fancyhello.o = $(com32)/libutil/libutil_com.c32
-LDFLAGS_keytest.o = $(com32)/libutil/libutil_com.c32
-
all: hello.c32 resolv.c32 serialinfo.c32 \
localboot.c32 \
fancyhello.c32 fancyhello.lnx \