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cae994bc22
In particular, it will buffer information about children other than the one being waited for, so it isn't lost. It can also emulate a non-blocking wait by arranging to interrupt the wait with a signal.
124 lines
2.9 KiB
Makefile
124 lines
2.9 KiB
Makefile
# The *_SRC variables are used to define segments; see the "%.a" recipe.
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# shell/hush.c is divided into segments as specified within the file itself.
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MAIN_SRC = shell/hush.c
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SHELL_OTHER_SRC = \
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shell/match.c \
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shell/math.c \
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shell/random.c \
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shell/shell.common.c \
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shell/glob.c
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COREUTILS_SRC = \
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coreutils/echo.c \
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coreutils/test.c \
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coreutils/test.ptr.hack.c
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LIBBB_A_SRC = \
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libbb/lineedit.c
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LIBBB_B_SRC = \
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libbb/appletlib.c \
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libbb/getopt32.c \
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libbb/error.retval.c \
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libbb/endofname.c \
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libbb/bb.strtonum.c \
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libbb/full.write.c \
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libbb/bb.qsort.c \
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libbb/copyfd.c \
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libbb/get.line.c \
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libbb/conc.pathfile.c \
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libbb/last.char.is.c \
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libbb/cmp.str.array.c \
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libbb/llist.c \
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libbb/escape.seq.c \
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libbb/messages.c \
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libbb/bb.basename.c \
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libbb/mempcpy.c
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LIBBB_C_SRC = \
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libbb/perror.msg.c \
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libbb/signal.names.c \
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libbb/safe.strncpy.c \
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libbb/platform.c \
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libbb/signals.c \
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libbb/printable.str.c \
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libbb/read.key.c \
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libbb/safe.write.c \
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libbb/read.c \
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libbb/s.gethostname.c \
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libbb/safe.poll.c \
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libbb/parse.mode.c \
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libbb/poll.c
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LIBBB_D_SRC = \
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libbb/xfuncs.printf.c \
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libbb/xfuncs.c \
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libbb/xgetcwd.c \
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libbb/xatonum.c \
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libbb/xfunc.die.c \
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libbb/skip.whitespc.c \
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libbb/wfopen.c \
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libbb/verror.msg.c \
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libbb/time.c \
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libbb/xrealloc.vec.c \
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libbb/unicode.c \
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libbb/vfork.and.run.c \
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libbb/waitpid.emul.c
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SRCS = $(MAIN_SRC) $(SHELL_OTHER_SRC) $(COREUTILS_SRC) $(LIBBB_A_SRC) \
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$(LIBBB_B_SRC) $(LIBBB_C_SRC) $(LIBBB_D_SRC)
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OBJS = $(SRCS:.c=.a)
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ROOT = $(MAIN_SRC:.c=.root)
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SHELL_OTHER_SEG = -SSHELLOTHER
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COREUTILS_SEG = -SCOREUTILS_
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LIBBB_A_SEG = -SLIBBB_A___
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LIBBB_C_SEG = -SLIBBB_C___
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# We need more separate segments in debug mode because the code is bigger.
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.IF $(DEBUG)
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LIBBB_B_SEG = -SLIBBB_B___
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LIBBB_D_SEG = -SLIBBB_D___
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.ELSE
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LIBBB_B_SEG = -SLIBBB_A___
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LIBBB_D_SEG = -SLIBBB_C___
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.END
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INCLUDES = -I include -I shell -I libbb
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DEFINES = -Dhush_main=main -DNDEBUG
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# Hack to effectively disable close_on_exec_on method for now.
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# This will cause us to leak file descriptors. TODO: Fix.
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DEFINES += -DF_SETFD=-1 -DFD_CLOEXEC=-1
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# For correct handling of varargs methods and fork, we need
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# optimize bit 3 set (no stack repair code).
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# Optimize bit 6 breaks some standard-compliant varargs code,
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# and bits 0, 4, and 5 have known bugs. Disable for now.
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CFLAGS = -i -w -a0 -O8
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STACKSIZE = 20480
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.IF $(DEBUG)
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CFLAGS += -g -DDEBUG
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.END
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PROG = hush
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$(PROG): $(OBJS)
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$(CC) $(OBJS) -o $@
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%.a: %.c
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$(CC) $(INCLUDES) $(DEFINES) $(CFLAGS) -c $< -o $@ \
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$(eq,$<,$(MAIN_SRC) -s$(STACKSIZE) -r) \
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$(!eq,$(SHELL_OTHER_SRC:s/$<//),$(SHELL_OTHER_SRC) $(SHELL_OTHER_SEG)) \
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$(!eq,$(COREUTILS_SRC:s/$<//),$(COREUTILS_SRC) $(COREUTILS_SEG)) \
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$(!eq,$(LIBBB_A_SRC:s/$<//),$(LIBBB_A_SRC) $(LIBBB_A_SEG)) \
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$(!eq,$(LIBBB_B_SRC:s/$<//),$(LIBBB_B_SRC) $(LIBBB_B_SEG)) \
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$(!eq,$(LIBBB_C_SRC:s/$<//),$(LIBBB_C_SRC) $(LIBBB_C_SEG)) \
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$(!eq,$(LIBBB_D_SRC:s/$<//),$(LIBBB_D_SRC) $(LIBBB_D_SEG))
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.PHONY: clean
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clean:
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$(RM) $(OBJS) $(ROOT) $(PROG)
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