x86-64: Support symbol table and kasan global variables cross-border …

…detection

1. Add kasan compilation options
2. Modify the link process to support symbol tables and kasan global variables cross-border detection

Signed-off-by: wangmingrong1 <wangmingrong1@xiaomi.com>

arch/x86/src/Makefile

@@ -113,11 +113,41 @@ libarch$(LIBEXT): $(OBJS)
 board/libboard$(LIBEXT):
 	$(Q) $(MAKE) -C board libboard$(LIBEXT) EXTRAFLAGS="$(EXTRAFLAGS)"
 
+# When multiple linking, these two additional linking objects will be included
+
+ifeq ($(CONFIG_MM_KASAN_GLOBAL),y)
+EXTRA_LIBS += kasan_globals$(OBJEXT)
+endif
+ifeq ($(CONFIG_ALLSYMS),y)
+EXTRA_LIBS += allsyms$(OBJEXT)
+endif
+
+define LINK_ALLSYMS_KASAN
+	$(if $(CONFIG_ALLSYMS),
+	$(Q) $(TOPDIR)/tools/mkallsyms.py $(NUTTX) allsyms.tmp --orderbyname $(CONFIG_SYMTAB_ORDEREDBYNAME)
+	$(Q) $(call COMPILE, allsyms.tmp, allsyms$(OBJEXT), -x c)
+	$(Q) $(call DELFILE, allsyms.tmp))
+	$(if $(CONFIG_MM_KASAN_GLOBAL),
+	$(Q) $(TOPDIR)/tools/kasan_global.py -e $(NUTTX) -o kasan_globals.tmp -a $(CONFIG_MM_KASAN_GLOBAL_ALIGN)
+	$(Q) $(call COMPILE, kasan_globals.tmp, kasan_globals$(OBJEXT) -fno-sanitize=kernel-address, -x c)
+	$(Q) $(call DELFILE, kasan_globals.tmp))
+	$(Q) $(LD) --entry=__start $(LDFLAGS) $(LIBPATHS) $(EXTRA_LIBPATHS) \
+		-o $(NUTTX) $(HEAD_OBJ) $(EXTRA_OBJS) \
+		$(LDSTARTGROUP) $(LDLIBS) $(EXTRA_LIBS) $(LDENDGROUP)
+endef
+
 nuttx$(EXEEXT): $(HEAD_OBJ) board/libboard$(LIBEXT) $(ARCHSCRIPT)
 	@echo "LD: nuttx$(EXEEXT)"
+ifeq ($(CONFIG_ALLSYMS)$(CONFIG_MM_KASAN_GLOBAL),)
 	$(Q) $(LD) --entry=__start $(LDFLAGS) $(LIBPATHS) $(EXTRA_LIBPATHS) \
 		-o $(NUTTX) $(HEAD_OBJ) $(EXTRA_OBJS) \
 		$(LDSTARTGROUP) $(LDLIBS) $(EXTRA_LIBS) $(LDENDGROUP)
+else
+	$(Q) $(call LINK_ALLSYMS_KASAN)
+	$(Q) $(call LINK_ALLSYMS_KASAN)
+	$(Q) $(call LINK_ALLSYMS_KASAN)
+	$(Q) $(call LINK_ALLSYMS_KASAN)
+endif
 ifneq ($(CONFIG_WINDOWS_NATIVE),y)
 	$(Q) $(NM) $(NUTTX) | \
 	grep -v '\(compiled\)\|\(\$(OBJEXT)$$\)\|\( [aUw] \)\|\(\.\.ng$$\)\|\(LASH[RL]DI\)' | \

arch/x86/src/common/Toolchain.defs

@@ -53,6 +53,22 @@ NM = $(CROSSDEV)nm
 OBJCOPY = $(CROSSDEV)objcopy
 OBJDUMP = $(CROSSDEV)objdump
 
+ifeq ($(CONFIG_MM_KASAN_ALL),y)
+  ARCHOPTIMIZATION += -fsanitize=kernel-address
+endif
+
+ifeq ($(CONFIG_MM_KASAN_GLOBAL),y)
+  ARCHOPTIMIZATION += --param asan-globals=1
+endif
+
+ifeq ($(CONFIG_MM_KASAN_DISABLE_READS_CHECK),y)
+  ARCHOPTIMIZATION += --param asan-instrument-reads=0
+endif
+
+ifeq ($(CONFIG_MM_KASAN_DISABLE_WRITES_CHECK),y)
+  ARCHOPTIMIZATION += --param asan-instrument-writes=0
+endif
+
 CFLAGS := $(ARCHWARNINGS) $(ARCHOPTIMIZATION) $(ARCHCPUFLAGS) $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS) -pipe
 CPPFLAGS := $(ARCHINCLUDES) $(ARCHDEFINES) $(EXTRAFLAGS)
 AFLAGS := $(CFLAGS) -D__ASSEMBLY__