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build shared library version of liblkl #23

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build shared library version of liblkl #23

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33 changes: 25 additions & 8 deletions tools/lkl/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -12,16 +12,39 @@ endif
OUTPUT_FORMAT=$(shell $(LD) -r -print-output-format)

lib_source = $(filter-out %-host.c,$(wildcard lib/*.c))
lib_objs = $(patsubst %.c,%.o, $(lib_source))

source = $(wildcard tests/*.c)
objs = $(patsubst %.c,%.o, $(source))
execs = $(patsubst %.c,%, $(source))

ifneq (,$(filter $(OUTPUT_FORMAT),elf64-x86-64 elf32-i386 elf64-x86-64-freebsd))
# ELF builds
source += $(wildcard *.c)
objs = $(patsubst %.c,%.o, $(source))
execs = $(patsubst %.c,%, $(source))

lib_source += lib/posix-host.c
lib_objs = $(patsubst %.c,%.o, $(lib_source))

CFLAGS += -fPIC
LDFLAGS += -lpthread -lrt
source += $(wildcard *.c)
execs = cpfromfs

all: lib/liblkl.a lib/liblkl.so $(execs)

lib/liblkl.so: $(lib_objs) lib/lkl.o
gcc -o $@ -shared $^

else ifeq ($(OUTPUT_FORMAT),pe-i386)
# Win32 builds
lib_source += lib/nt-host.c
lib_objs = $(patsubst %.c,%.o, $(lib_source))

KOPT="KALLSYMS_EXTRA_PASS=1"

all: lib/liblkl.a $(execs)

else
$(error Unrecognized platform: $(OUTPUT_FORMAT))
endif
Expand All @@ -30,12 +53,6 @@ ifneq (,$(filter $(OUTPUT_FORMAT),elf64-x86-64 elf64-x86-64-freebsd))
CFLAGS += -D_FILE_OFFSET_BITS=64
endif

lib_objs = $(patsubst %.c,%.o, $(lib_source))
objs = $(patsubst %.c,%.o, $(source))
execs += $(patsubst %.c,%, $(source))

all: lib/liblkl.a $(execs)

lib/liblkl.a: $(lib_objs) lib/lkl.o
$(AR) -rc $@ $^

Expand All @@ -51,7 +68,7 @@ $(objs): lib/lkl.o
$(execs): lib/liblkl.a

clean:
-rm -rf include/lkl/ lib/liblkl.a $(lib_objs) lib/lkl.o $(objs) $(execs)
-rm -rf include/lkl/ lib/liblkl.a lib/liblkl.so $(lib_objs) lib/lkl.o $(objs) $(execs)
$(MAKE) -C ../.. ARCH=lkl clean

fs2tar: LDFLAGS += -larchive
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