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Always use a custom linker script, to avoid oddities in the default.
[pintos-anon]
/
src
/
Makefile.userprog
diff --git
a/src/Makefile.userprog
b/src/Makefile.userprog
index c5e6f3db33c6e992682c7b61818846b10b6a5034..2ecb8e737f9f6061506e84fc1e067e2ac685a021 100644
(file)
--- a/
src/Makefile.userprog
+++ b/
src/Makefile.userprog
@@
-10,8
+10,12
@@
DEFINES = -DPINTOS -DUSER
CPPFLAGS = -nostdinc -I$(SRCDIR) -I- -I$(SRCDIR)/lib -I$(SRCDIR)/lib/user -I.
# Linker flags.
CPPFLAGS = -nostdinc -I$(SRCDIR) -I- -I$(SRCDIR)/lib -I$(SRCDIR)/lib/user -I.
# Linker flags.
-LDFLAGS = -nostdlib -static
+LDFLAGS = -nostdlib -static
-Wl,-T,$(LDSCRIPT)
LDLIBS = $(shell $(CC) -print-libgcc-file-name)
LDLIBS = $(shell $(CC) -print-libgcc-file-name)
+LDSCRIPT = $(SRCDIR)/lib/user/normal.lds
+# Uncomment the following line to round up section sizes
+# to full pages (for debugging only).
+#LDSCRIPT = $(SRCDIR)/lib/user/fullpage.lds
# C library sources linked into every test program.
LIB_SRC = lib/debug.c # Debug code.
# C library sources linked into every test program.
LIB_SRC = lib/debug.c # Debug code.
@@
-34,14
+38,12
@@
all: $(PROGS)
define TEMPLATE
$(2)_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$($(2)_SRC)))
define TEMPLATE
$(2)_OBJ = $(patsubst %.c,%.o,$(patsubst %.S,%.o,$($(2)_SRC)))
-$(1): $$($(2)_OBJ) $$(LIB)
- $$(CC) $$(LDFLAGS) $$
^
$$(LDLIBS) -o $$@
+$(1): $$($(2)_OBJ) $$(LIB)
$$(LDSCRIPT)
+ $$(CC) $$(LDFLAGS) $$
($(2)_OBJ) $$(LIB)
$$(LDLIBS) -o $$@
endef
$(foreach prog,$(PROGS),$(eval $(call TEMPLATE,$(prog),$(subst -,_,$(prog)))))
endef
$(foreach prog,$(PROGS),$(eval $(call TEMPLATE,$(prog),$(subst -,_,$(prog)))))
-$(PROGS): $(LIB)
-
libc.a: $(LIB_OBJ)
rm -f $@
ar r $@ $^
libc.a: $(LIB_OBJ)
rm -f $@
ar r $@ $^