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我是 Linux 的新用户，正在尝试尝试 Pintos Project #02 - 用户程序。我只安装了 Pintos，我试图通过“make”来构建示例，我得到了这个错误：

7fcdfb62f000-7fcdfb631000 rw-p 00000000 00:00 0 
7fcdfb631000-7fcdfb632000 r--p 00022000 08:07 4619                       /lib/x86_64-linux-gnu/ld-2.17.so
7fcdfb632000-7fcdfb634000 rw-p 00023000 08:07 4619                       /lib/x86_64-linux-gnu/ld-2.17.so
7fffa164a000-7fffa166b000 rw-p 00000000 00:00 0                          [stack]
7fffa16ed000-7fffa16ef000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]
../Makefile.userprog:42: recipe for target 'libc.a' failed
make: *** [libc.a] Aborted (core dumped)
make: *** Deleting file 'libc.a'

谁能解释发生了什么？

这是 Makefile.userprog 供参考：

# -*- makefile -*-

$(PROGS): CPPFLAGS += -I$(SRCDIR)/lib/user -I.

# Linker flags.
$(PROGS): LDFLAGS += -nostdlib -static -Wl,-T,$(LDSCRIPT)
$(PROGS): LDSCRIPT = $(SRCDIR)/lib/user/user.lds

# Library code shared between kernel and user programs.
lib_SRC  = lib/debug.c          # Debug code.
lib_SRC += lib/random.c         # Pseudo-random numbers.
lib_SRC += lib/stdio.c          # I/O library.
lib_SRC += lib/stdlib.c         # Utility functions.
lib_SRC += lib/string.c         # String functions.
lib_SRC += lib/arithmetic.c     # 64-bit arithmetic for GCC.
lib_SRC += lib/ustar.c          # Unix standard tar format utilities.
exm_SRC += example/halt.c       # changes done
# User level only library code.
lib/user_SRC  = lib/user/debug.c    # Debug helpers.
lib/user_SRC += lib/user/syscall.c  # System calls.
lib/user_SRC += lib/user/console.c  # Console code.

LIB_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$(lib_SRC) $(lib/user_SRC)))
LIB_DEP = $(patsubst %.o,%.d,$(LIB_OBJ))
LIB = lib/user/entry.o libc.a

PROGS_SRC = $(foreach prog,$(PROGS),$($(prog)_SRC))
PROGS_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$(PROGS_SRC)))
PROGS_DEP = $(patsubst %.o,%.d,$(PROGS_OBJ))

all: $(PROGS)

define TEMPLATE
$(1)_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$($(1)_SRC)))
$(1): $$($(1)_OBJ) $$(LIB) $$(LDSCRIPT)
    $$(CC) $$(LDFLAGS) $$($(1)_OBJ) $$(LIB) -o $$@
endef

$(foreach prog,$(PROGS),$(eval $(call TEMPLATE,$(prog))))

libc.a: $(LIB_OBJ)
    rm -f $@ # LINE 42
    ar r $@ $^
    ranlib $@

clean::
    rm -f $(PROGS) $(PROGS_OBJ) $(PROGS_DEP)
    rm -f $(LIB_DEP) $(LIB_OBJ) lib/user/entry.[do] libc.a 

.PHONY: all clean

-include $(LIB_DEP) $(PROGS_DEP)
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1 回答 1

0

您可能通过从某个地方复制粘贴弄乱了您的 makefile。要执行的命令前面的空格需要是一个或多个制表符，不能使用空格。

于 2013-12-25T18:40:26.863 回答