修改内核路径

hc

2024-05-14 bedbef8ad3e75a304af6361af235302bcc61d06b

 kernel/arch/parisc/Makefile
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@@ -24,12 +24,8 @@
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 KBUILD_IMAGE := vmlinuz
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 endif
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-KBUILD_DEFCONFIG := default_defconfig
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-
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 NM		= sh $(srctree)/arch/parisc/nm
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 CHECKFLAGS	+= -D__hppa__=1
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-LIBGCC		= $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
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-export LIBGCC
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 ifdef CONFIG_64BIT
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 UTS_MACHINE	:= parisc64
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@@ -41,6 +37,13 @@
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 LD_BFD		:= elf32-hppa-linux
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 endif
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+# select defconfig based on actual architecture
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+ifeq ($(shell uname -m),parisc64)
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+	KBUILD_DEFCONFIG := generic-64bit_defconfig
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+else
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+	KBUILD_DEFCONFIG := generic-32bit_defconfig
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+endif
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+
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 export LD_BFD
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 ifneq ($(SUBARCH),$(UTS_MACHINE))
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@@ -50,6 +53,23 @@
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 			$(foreach a,$(CC_ARCHES), \
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 			$(foreach s,$(CC_SUFFIXES),$(a)-$(s)-)))
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 	endif
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+endif
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+
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+ifdef CONFIG_DYNAMIC_FTRACE
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+ifdef CONFIG_64BIT
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+NOP_COUNT := 8
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+else
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+NOP_COUNT := 5
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+endif
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+
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+export CC_USING_RECORD_MCOUNT:=1
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+export CC_USING_PATCHABLE_FUNCTION_ENTRY:=1
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+
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+KBUILD_AFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1
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+KBUILD_CFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY=1 \
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+		 -DFTRACE_PATCHABLE_FUNCTION_SIZE=$(NOP_COUNT)
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+
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+CC_FLAGS_FTRACE := -fpatchable-function-entry=$(NOP_COUNT),$(shell echo $$(($(NOP_COUNT)-1)))
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 endif
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 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
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@@ -93,6 +113,8 @@
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 head-y			:= arch/parisc/kernel/head.o 
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 KBUILD_CFLAGS	+= $(cflags-y)
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+LIBGCC		:= $(shell $(CC) -print-libgcc-file-name)
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+export LIBGCC
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 kernel-y			:= mm/ kernel/ math-emu/
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..
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@@ -107,8 +129,8 @@
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 	elif [ -x /sbin/palo ]; then echo /sbin/palo; \
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 	fi)
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-PALOCONF := $(shell if [ -f $(src)/palo.conf ]; then echo $(src)/palo.conf; \
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-	else echo $(obj)/palo.conf; \
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+PALOCONF := $(shell if [ -f $(srctree)/palo.conf ]; then echo $(srctree)/palo.conf; \
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+	else echo $(objtree)/palo.conf; \
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 	fi)
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 palo lifimage: vmlinuz
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@@ -118,8 +140,8 @@
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 		false; \
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 	fi
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 	@if test ! -f "$(PALOCONF)"; then \
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-		cp $(src)/arch/parisc/defpalo.conf $(obj)/palo.conf; \
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-		echo 'A generic palo config file ($(obj)/palo.conf) has been created for you.'; \
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+		cp $(srctree)/arch/parisc/defpalo.conf $(objtree)/palo.conf; \
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+		echo 'A generic palo config file ($(objree)/palo.conf) has been created for you.'; \
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 		echo 'You should check it and re-run "make palo".'; \
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 		echo 'WARNING: the "lifimage" file is now placed in this directory by default!'; \
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 		false; \
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@@ -145,14 +167,14 @@
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 	$(OBJCOPY) $(boot)/bzImage $@
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 else
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 vmlinuz: vmlinux
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-	@gzip -cf -9 $< > $@
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+	@$(KGZIP) -cf -9 $< > $@
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 endif
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 install:
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-	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
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+	$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
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 			$(KERNELRELEASE) vmlinux System.map "$(INSTALL_PATH)"
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 zinstall:
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-	$(CONFIG_SHELL) $(src)/arch/parisc/install.sh \
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+	$(CONFIG_SHELL) $(srctree)/arch/parisc/install.sh \
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 			$(KERNELRELEASE) vmlinuz System.map "$(INSTALL_PATH)"
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 CLEAN_FILES	+= lifimage
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@@ -169,11 +191,8 @@
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 	@echo  '  zinstall	- Install compressed vmlinuz kernel'
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 endef
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-# we require gcc 3.3 or above to compile the kernel
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-archprepare: checkbin
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-checkbin:
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-	@if test "$(cc-version)" -lt "0303"; then \
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-		echo -n "Sorry, GCC v3.3 or above is required to build " ; \
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-		echo "the kernel." ; \
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-		false ; \
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-	fi
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+archclean:
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+	$(Q)$(MAKE) $(clean)=$(boot)
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+
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+archheaders:
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+	$(Q)$(MAKE) $(build)=arch/parisc/kernel/syscalls all