hush/Makefile
Stephen Heumann c8de71ae9d Changes so that hush can successfully re-execute itself:
*initialize the "environ" variable
*Reduce the stack size to 8192 (This should still be further reduced based on analysis of usage.)
2014-11-08 18:03:25 -06:00

125 lines
3.0 KiB
Makefile

# The *_SRC variables are used to define segments; see the "%.a" recipe.
# shell/hush.c is divided into segments as specified within the file itself.
MAIN_SRC = shell/hush.c
SHELL_OTHER_SRC = \
shell/match.c \
shell/math.c \
shell/random.c \
shell/shell.common.c \
shell/glob.c
COREUTILS_SRC = \
coreutils/echo.c \
coreutils/test.c \
coreutils/test.ptr.hack.c
LIBBB_A_SRC = \
libbb/lineedit.c
LIBBB_B_SRC = \
libbb/appletlib.c \
libbb/getopt32.c \
libbb/error.retval.c \
libbb/endofname.c \
libbb/bb.strtonum.c \
libbb/full.write.c \
libbb/bb.qsort.c \
libbb/copyfd.c \
libbb/get.line.c \
libbb/conc.pathfile.c \
libbb/last.char.is.c \
libbb/cmp.str.array.c \
libbb/llist.c \
libbb/escape.seq.c \
libbb/messages.c \
libbb/bb.basename.c \
libbb/mempcpy.c \
libbb/get.exec.path.c
LIBBB_C_SRC = \
libbb/perror.msg.c \
libbb/signal.names.c \
libbb/safe.strncpy.c \
libbb/platform.c \
libbb/signals.c \
libbb/printable.str.c \
libbb/read.key.c \
libbb/safe.write.c \
libbb/read.c \
libbb/s.gethostname.c \
libbb/safe.poll.c \
libbb/parse.mode.c \
libbb/poll.c
LIBBB_D_SRC = \
libbb/xfuncs.printf.c \
libbb/xfuncs.c \
libbb/xgetcwd.c \
libbb/xatonum.c \
libbb/xfunc.die.c \
libbb/skip.whitespc.c \
libbb/wfopen.c \
libbb/verror.msg.c \
libbb/time.c \
libbb/xrealloc.vec.c \
libbb/unicode.c \
libbb/vfork.and.run.c \
libbb/waitpid.emul.c
SRCS = $(MAIN_SRC) $(SHELL_OTHER_SRC) $(COREUTILS_SRC) $(LIBBB_A_SRC) \
$(LIBBB_B_SRC) $(LIBBB_C_SRC) $(LIBBB_D_SRC)
OBJS = $(SRCS:.c=.a)
ROOT = $(MAIN_SRC:.c=.root)
SHELL_OTHER_SEG = -SSHELLOTHER
COREUTILS_SEG = -SCOREUTILS_
LIBBB_A_SEG = -SLIBBB_A___
LIBBB_C_SEG = -SLIBBB_C___
# We need more separate segments in debug mode because the code is bigger.
.IF $(DEBUG)
LIBBB_B_SEG = -SLIBBB_B___
LIBBB_D_SEG = -SLIBBB_D___
.ELSE
LIBBB_B_SEG = -SLIBBB_A___
LIBBB_D_SEG = -SLIBBB_C___
.END
INCLUDES = -I include -I shell -I libbb
DEFINES = -Dhush_main=main -DNDEBUG
# Hack to effectively disable close_on_exec_on method for now.
# This will cause us to leak file descriptors. TODO: Fix.
DEFINES += -DF_SETFD=-1 -DFD_CLOEXEC=-1
# For correct handling of varargs methods and fork, we need
# optimize bit 3 set (no stack repair code).
# Optimize bit 6 breaks some standard-compliant varargs code,
# and bits 0, 4, and 5 have known bugs. Disable for now.
CFLAGS = -i -w -a0 -O8
STACKSIZE = 8192
.IF $(DEBUG)
CFLAGS += -g -DDEBUG
.END
PROG = hush
$(PROG): $(OBJS)
$(CC) $(OBJS) -o $@
%.a: %.c
$(CC) $(INCLUDES) $(DEFINES) $(CFLAGS) -c $< -o $@ \
$(eq,$<,$(MAIN_SRC) -s$(STACKSIZE) -r) \
$(!eq,$(SHELL_OTHER_SRC:s/$<//),$(SHELL_OTHER_SRC) $(SHELL_OTHER_SEG)) \
$(!eq,$(COREUTILS_SRC:s/$<//),$(COREUTILS_SRC) $(COREUTILS_SEG)) \
$(!eq,$(LIBBB_A_SRC:s/$<//),$(LIBBB_A_SRC) $(LIBBB_A_SEG)) \
$(!eq,$(LIBBB_B_SRC:s/$<//),$(LIBBB_B_SRC) $(LIBBB_B_SEG)) \
$(!eq,$(LIBBB_C_SRC:s/$<//),$(LIBBB_C_SRC) $(LIBBB_C_SEG)) \
$(!eq,$(LIBBB_D_SRC:s/$<//),$(LIBBB_D_SRC) $(LIBBB_D_SEG))
.PHONY: clean
clean:
$(RM) $(OBJS) $(ROOT) $(PROG)