X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=src%2FMake.config;h=4dd2eb1cd6fc9e5ceaef2a7777c3f4a780e55923;hb=a43de5270109e60db2284c929a368b083e1ff316;hp=b1d480e70ae51453e636057e5b7d556722443825;hpb=7c40a20ad1cfcf4db3e5b93dd30654f6fdc1ef73;p=pintos-anon

diff --git a/src/Make.config b/src/Make.config
index b1d480e..4dd2eb1 100644
--- a/src/Make.config
+++ b/src/Make.config
@@ -6,16 +6,24 @@ VPATH = $(SRCDIR)
 
 # Binary utilities.
 # If the host appears to be x86, use the normal tools.
+# If it's x86-64, use the compiler and linker in 32-bit mode.
 # Otherwise assume cross-tools are installed as i386-elf-*.
 X86 = i.86\|pentium.*\|[pk][56]\|nexgen\|viac3\|6x86\|athlon.*
+X86_64 = x86_64
 ifneq (0, $(shell expr `uname -m` : '$(X86)'))
-CC = gcc
-LD = ld
-OBJCOPY = objcopy
+  CC = gcc
+  LD = ld
+  OBJCOPY = objcopy
 else
-CC = i386-elf-gcc
-LD = i386-elf-ld
-OBJCOPY = i386-elf-objcopy
+  ifneq (0, $(shell expr `uname -m` : '$(X86_64)'))
+    CC = gcc -m32
+    LD = ld -melf_i386
+    OBJCOPY = objcopy
+  else
+    CC = i386-elf-gcc
+    LD = i386-elf-ld
+    OBJCOPY = i386-elf-objcopy
+  endif
 endif
 
 ifeq ($(strip $(shell command -v $(CC) 2> /dev/null)),)
@@ -25,13 +33,14 @@ endif
 # Compiler and assembler invocation.
 DEFINES =
 WARNINGS = -Wall -W -Wstrict-prototypes -Wmissing-prototypes -Wsystem-headers
-CFLAGS = -g -MMD -msoft-float
+CFLAGS = -g -msoft-float -O
 CPPFLAGS = -nostdinc -I$(SRCDIR) -I$(SRCDIR)/lib
-ASFLAGS = -Wa,--gstabs -MMD
+ASFLAGS = -Wa,--gstabs
 LDFLAGS = 
+DEPS = -MMD -MF $(@:.o=.d)
 
 %.o: %.c
-	$(CC) -c $< -o $@ $(CFLAGS) $(CPPFLAGS) $(WARNINGS) $(DEFINES)
+	$(CC) -c $< -o $@ $(CFLAGS) $(CPPFLAGS) $(WARNINGS) $(DEFINES) $(DEPS)
 
 %.o: %.S
-	$(CC) -c $< -o $@ $(ASFLAGS) $(CPPFLAGS) $(DEFINES)
+	$(CC) -c $< -o $@ $(ASFLAGS) $(CPPFLAGS) $(DEFINES) $(DEPS)