xvfs_random.so
xvfs_synthetic.so
profile-bare
profile-gperf
oprofile_data
gmon.out
callgrind.out
tclsh-local

TCLSH_NATIVE  := tclsh
TCL_CONFIG_SH_DIR := $(shell echo 'puts [tcl::pkgconfig get libdir,runtime]' | $(TCLSH_NATIVE))
TCL_CONFIG_SH := $(TCL_CONFIG_SH_DIR)/tclConfig.sh
XVFS_ROOT_MOUNTPOINT := //xvfs:/
CPPFLAGS      := -DXVFS_ROOT_MOUNTPOINT='"$(XVFS_ROOT_MOUNTPOINT)"' -I. -DUSE_TCL_STUBS=1 -DXVFS_DEBUG $(shell . "${TCL_CONFIG_SH}" && echo "$${TCL_INCLUDE_SPEC}") $(XVFS_ADD_CPPFLAGS)
CFLAGS        := -fPIC -g3 -ggdb3 -Wall $(XVFS_ADD_CFLAGS)
LDFLAGS       := $(XVFS_ADD_LDFLAGS)
LIBS          := $(XVFS_ADD_LIBS)
TCL_LIB       := $(shell . "${TCL_CONFIG_SH}" && echo "$${TCL_LIB_SPEC}")
LIBS          := $(shell . "${TCL_CONFIG_SH}" && echo "$${TCL_STUB_LIB_SPEC}")
TCL_STUB_LIB  := $(shell . "${TCL_CONFIG_SH}" && echo "$${TCL_STUB_LIB_SPEC}")
TCLSH         := tclsh
LIB_SUFFIX    := $(shell . "${TCL_CONFIG_SH}"; echo "$${TCL_SHLIB_SUFFIX:-.so}")

all: example-standalone$(LIB_SUFFIX) example-client$(LIB_SUFFIX) example-flexible$(LIB_SUFFIX) xvfs$(LIB_SUFFIX)

example.c: $(shell find example -type f) $(shell find lib -type f) lib/xvfs/xvfs.c.rvt xvfs-create-c xvfs-create Makefile
	rm -f example.c.new.1 example.c.new.2
	./xvfs-create-c --directory example --name example > example.c.new.1
	./xvfs-create --directory example --name example > example.c.new.2
	bash -c "diff -u <(grep -v '^ *$$' example.c.new.1) <(grep -v '^ *$$' example.c.new.2)" || :
	rm -f example.c.new.2
	mv example.c.new.1 example.c

example-standalone.o: example.c xvfs-core.h xvfs-core.c Makefile
	$(CC) $(CPPFLAGS) -DXVFS_MODE_STANDALONE $(CFLAGS) -o example-standalone.o -c example.c

example-standalone$(LIB_SUFFIX): example-standalone.o Makefile
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o example-standalone$(LIB_SUFFIX) example-standalone.o $(LIBS)
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o example-standalone$(LIB_SUFFIX) example-standalone.o $(LIBS) $(TCL_STUB_LIB)

example-client.o: example.c xvfs-core.h Makefile
	$(CC) $(CPPFLAGS) -DXVFS_MODE_CLIENT $(CFLAGS) -o example-client.o -c example.c

example-client$(LIB_SUFFIX): example-client.o Makefile
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o example-client$(LIB_SUFFIX) example-client.o $(LIBS)
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o example-client$(LIB_SUFFIX) example-client.o $(LIBS) $(TCL_STUB_LIB)

example-flexible.o: example.c xvfs-core.h Makefile
	$(CC) $(CPPFLAGS) -DXVFS_MODE_FLEXIBLE $(CFLAGS) -o example-flexible.o -c example.c

example-flexible$(LIB_SUFFIX): example-flexible.o Makefile
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o example-flexible$(LIB_SUFFIX) example-flexible.o $(LIBS)
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o example-flexible$(LIB_SUFFIX) example-flexible.o $(LIBS) $(TCL_STUB_LIB)

xvfs.o: xvfs-core.h xvfs-core.c Makefile
	$(CC) $(CPPFLAGS) -DXVFS_MODE_SERVER $(CFLAGS) -o xvfs.o -c xvfs-core.c

xvfs$(LIB_SUFFIX): xvfs.o Makefile
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o xvfs$(LIB_SUFFIX) xvfs.o $(LIBS)
	$(CC) $(CFLAGS) $(LDFLAGS) -shared -o xvfs$(LIB_SUFFIX) xvfs.o $(LIBS) $(TCL_STUB_LIB)

# xvfs-create-standalone is a standalone (i.e., no external dependencies
# like lib/minirivet, xvfs-core.c, etc) version of "xvfs-create"
xvfs-create-standalone: $(shell find lib -type f) xvfs-create xvfs-core.c xvfs-core.h lib/xvfs/xvfs.c.rvt Makefile
	rm -f xvfs-create-standalone.new xvfs-create-standalone
	./xvfs-create --dump-tcl --remove-debug > xvfs-create-standalone.new
	chmod +x xvfs-create-standalone.new

	operf ./profile-bare
	opreport
	./profile-gperf
	gprof ./profile-gperf
	valgrind --tool=callgrind --callgrind-out-file=callgrind.out ./profile-bare 10 2
	callgrind_annotate callgrind.out

do-valgrind: Makefile
	$(MAKE) test XVFS_TEST_EXIT_ON_FAILURE=0 GDB='valgrind --tool=memcheck --track-origins=yes --leak-check=full'

tclsh-local: tclsh-local.c
	$(CC) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS) -UUSE_TCL_STUBS -o tclsh-local tclsh-local.c $(LIBS) $(TCL_LIB)

do-asan: Makefile
	rm -f tclsh-local
	$(MAKE) tclsh-local test XVFS_TEST_EXIT_ON_FAILURE=0 CC='clang -fsanitize=address' XVFS_ADD_CFLAGS='-Wno-string-plus-int' TCLSH=./tclsh-local

do-msan: Makefile
	rm -f tclsh-local
	$(MAKE) tclsh-local test XVFS_TEST_EXIT_ON_FAILURE=0 CC='clang -fsanitize=memory' XVFS_ADD_CFLAGS='-Wno-string-plus-int' TCLSH=./tclsh-local

clean:
	rm -f xvfs-create-standalone.new xvfs-create-standalone
	rm -f xvfs-create-c.o xvfs-create-c
	rm -f example.c example.c.new example.c.new.1 example.c.new.2
	rm -f example-standalone$(LIB_SUFFIX) example-standalone.o
	rm -f example-client.o example-client$(LIB_SUFFIX)
	rm -f example-flexible.o example-flexible$(LIB_SUFFIX)

	rm -f __test__.tcl
	rm -f profile-bare profile-gperf
	rm -f gmon.out
	rm -f callgrind.out
	rm -rf oprofile_data
	rm -f xvfs-test-coverage.info
	rm -rf xvfs-test-coverage
	rm -f tclsh-local

distclean: clean

.PHONY: all clean distclean test do-test do-coverage do-benchmark do-profile
.PHONY: all clean distclean test do-test do-coverage do-benchmark do-profile do-valgrind do-asan do-msan

#include <tcl.h>

/*
 * tclAppInit.c --
 *
 *	Provides a default version of the main program and Tcl_AppInit
 *	function for Tcl applications (without Tk).
 *
 * Copyright (c) 1993 The Regents of the University of California.
 * Copyright (c) 1994-1997 Sun Microsystems, Inc.
 * Copyright (c) 1998-1999 by Scriptics Corporation.
 *
 * See the file "license.terms" for information on usage and redistribution of
 * this file, and for a DISCLAIMER OF ALL WARRANTIES.
 */

/*
 *----------------------------------------------------------------------
 *
 * Tcl_AppInit --
 *
 *	This function performs application-specific initialization. Most
 *	applications, especially those that incorporate additional packages,
 *	will have their own version of this function.
 *
 * Results:
 *	Returns a standard Tcl completion code, and leaves an error message in
 *	the interp's result if an error occurs.
 *
 * Side effects:
 *	Depends on the startup script.
 *
 *----------------------------------------------------------------------
 */

int Tcl_AppInit(Tcl_Interp *interp) {
    if (Tcl_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }

#ifdef DJGPP
    Tcl_SetVar(interp, "tcl_rcFileName", "~/tclsh.rc", TCL_GLOBAL_ONLY);
#else
    Tcl_SetVar(interp, "tcl_rcFileName", "~/.tclshrc", TCL_GLOBAL_ONLY);
#endif

    return TCL_OK;
}

int main(int argc, char **argv) {
	Tcl_Main(argc, argv, Tcl_AppInit);
	return(1);
}