Makefile -out-of-source
# Makefile for top dir
# $(call makever,1.2.3)
# major.minor.patch
# libtool manual: -version-number
define makever
@ $(MAKE) -C $@ soname=lib$@.so.$(word 1,$(subst ., ,$(1)))
@ cp $(OBJDIR)/$@/$@ $(OBJDIR)/$@/lib$@.so.$(1)
@ cd $(OBJDIR)/$@ ; \
ln -f -s lib$@.so.$(1) lib$@.so.$(word 1,$(subst ., ,$(1))) ; \
cd - >/dev/null 2>&1 ;
@ cd $(OBJDIR)/$@ ; \
ln -f -s lib$@.so.$(1) lib$@.so ; \
cd - >/dev/null 2>&1 ;
endef
# make # BUILD_DIR=build
ifdef BUILD_DIR
export OBJDIR = $(abspath $(BUILD_DIR))
else
export OBJDIR = $(abspath build)
endif
SUBDIRS = main foo
all : $(SUBDIRS)
install : $(SUBDIRS)
$(SUBDIRS) : | $(OBJDIR)
$(OBJDIR) : ; @ mkdir $@
main : foo
main : ; @ $(MAKE) -C $@
foo : ; $(call makever,1.2.3)
# make DESTDIR=~/foo install
# Alexandre Duret-Lutz's Autotools Tutorial (without animations):
# "is ready to be uncompressed in / on many hosts"
install :
install -d $(DESTDIR)/usr/local/bin
install -d $(DESTDIR)/usr/local/lib
install -m 0755 $(OBJDIR)/main/main $(DESTDIR)/usr/local/bin
cp -P $(OBJDIR)/foo/*.so* $(DESTDIR)/usr/local/lib
clean :
@ for dir in $(SUBDIRS); do \
$(MAKE) -C $$dir $@; \
done
-rm -fr $(OBJDIR)
.PHONY : $(SUBDIRS) all install clean
---
# Makefile for subdir
# build shared library with -fPIC, -shared
CFLAGS = # -g -O3 -fPIC # CXXFLAGS for .cpp
CPPFLAGS = -MMD -MP -I../foo
LDFLAGS = -L$(OBJDIR)/foo # -shared
LDLIBS = -lfoo
#CC = $(CXX) # link with CXX for .cpp
LDFLAGS += -Wl,-rpath,'$$ORIGIN/../foo'
LDFLAGS += -Wl,-rpath,'$$ORIGIN/../lib'
#LDFLAGS += -Wl,-soname,$(soname)
# make # NDEBUG=1
ifdef NDEBUG
CFLAGS += -O3 # .cpp
CPPFLAGS += -DNDEBUG
else
CFLAGS += -g # .cpp
LDFLAGS += -fsanitize=address
endif
SUBDIR = $(OBJDIR)/$(lastword $(subst /, ,$(CURDIR)))
all : $(SUBDIR)/main # $(SUBDIR)/foo
# https://make.mad-scientist.net/papers/how-not-to-use-vpath/
$(SUBDIR)/main : $(addprefix $(SUBDIR)/,$(patsubst %.c,%.o,$(wildcard *.c))) # .cpp
$(CC) $(LDFLAGS) $^ $(LDLIBS) -o $@
$(SUBDIR)/%.o : %.c | $(SUBDIR) # .cpp
$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
$(SUBDIR) : ; @ mkdir $@
-include $(SUBDIR)/*.d
clean : ; -rm -fr $(SUBDIR)
.PHONY : all clean
---
# Makefile for subdir
# build shared library with -fPIC, -shared
CFLAGS = -fPIC # -g -O3 # CXXFLAGS for .cpp
CPPFLAGS = -MMD -MP # -I../bar
LDFLAGS = -shared # -L$(OBJDIR)/bar
LDLIBS = # -lbar
#CC = $(CXX) # link with CXX for .cpp
LDFLAGS += -Wl,-rpath,'$$ORIGIN/../bar'
LDFLAGS += -Wl,-rpath,'$$ORIGIN/../lib'
LDFLAGS += -Wl,-soname,$(soname)
# make # NDEBUG=1
ifdef NDEBUG
CFLAGS += -O3 # .cpp
CPPFLAGS += -DNDEBUG
else
CFLAGS += -g # .cpp
LDFLAGS += -fsanitize=address
endif
SUBDIR = $(OBJDIR)/$(lastword $(subst /, ,$(CURDIR)))
all : $(SUBDIR)/foo # $(SUBDIR)/bar
# https://make.mad-scientist.net/papers/how-not-to-use-vpath/
$(SUBDIR)/foo : $(addprefix $(SUBDIR)/,$(patsubst %.c,%.o,$(wildcard *.c))) # .cpp
$(CC) $(LDFLAGS) $^ $(LDLIBS) -o $@
$(SUBDIR)/%.o : %.c | $(SUBDIR) # .cpp
$(CC) $(CFLAGS) $(CPPFLAGS) -c -o $@ $<
$(SUBDIR) : ; @ mkdir $@
-include $(SUBDIR)/*.d
clean : ; -rm -fr $(SUBDIR)
.PHONY : all clean
---
#include <stdio.h>
#include <signal.h>
#include <assert.h>
#ifndef NDEBUG
#include <sanitizer/lsan_interface.h>
#endif
#include "foo.h"
void handlerCont(int signum) {
printf("SIGCONT %d\n", signum);
#ifndef NDEBUG
__lsan_do_recoverable_leak_check();
#endif
}
int main() {
signal(SIGCONT, handlerCont); // kill -CONT 123 # pid
printf("main\n");
foo();
int a[1024];
int n = 10240;
a[n] = 1; // asan
assert(0); // -DNDEBUG
}
