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[219.123.138.129]) by smtp.gmail.com with ESMTPSA id e2sm2177060pjw.13.2020.10.06.02.44.46 (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Tue, 06 Oct 2020 02:44:47 -0700 (PDT) Received: by earth-mac.local (Postfix, from userid 501) id 8295520390F419; Tue, 6 Oct 2020 18:44:45 +0900 (JST) From: Hajime Tazaki To: linux-um@lists.infradead.org, jdike@addtoit.com, richard@nod.at, anton.ivanov@cambridgegreys.com Cc: tavi.purdila@gmail.com, retrage01@gmail.com, linux-kernel-library@freelists.org, linux-arch@vger.kernel.org, Hajime Tazaki Subject: [RFC v7 03/21] um: move arch/um/os-Linux dir to tools/um/uml Date: Tue, 6 Oct 2020 18:44:12 +0900 Message-Id: X-Mailer: git-send-email 2.20.1 (Apple Git-117) In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org This patch moves underlying OS dependent part under arch/um to tools/um directory so that arch/um code does not need to build host build facilities (e.g., libc). Signed-off-by: Hajime Tazaki --- arch/um/Makefile | 3 +- arch/um/drivers/Makefile | 2 + .../um/{os-Linux => }/drivers/ethertap_kern.c | 0 arch/um/{os-Linux => }/drivers/tuntap_kern.c | 0 .../drivers => include/shared}/etap.h | 0 arch/um/include/shared/init.h | 5 ++ .../drivers => include/shared}/tuntap.h | 0 arch/um/kernel/Makefile | 1 + arch/um/{os-Linux => kernel}/user_syms.c | 0 arch/um/os-Linux/Makefile | 19 -------- arch/um/os-Linux/drivers/Makefile | 13 ----- tools/um/Makefile | 6 ++- tools/um/uml/Build | 48 +++++++++++++++++++ tools/um/uml/drivers/Build | 10 ++++ .../um/uml}/drivers/ethertap_user.c | 0 .../um/uml}/drivers/tuntap_user.c | 0 {arch/um/os-Linux => tools/um/uml}/elf_aux.c | 0 {arch/um/os-Linux => tools/um/uml}/execvp.c | 4 -- {arch/um/os-Linux => tools/um/uml}/file.c | 0 {arch/um/os-Linux => tools/um/uml}/helper.c | 0 {arch/um/os-Linux => tools/um/uml}/irq.c | 0 {arch/um/os-Linux => tools/um/uml}/main.c | 0 {arch/um/os-Linux => tools/um/uml}/mem.c | 0 {arch/um/os-Linux => tools/um/uml}/process.c | 0 .../um/os-Linux => tools/um/uml}/registers.c | 0 {arch/um/os-Linux => tools/um/uml}/sigio.c | 0 {arch/um/os-Linux => tools/um/uml}/signal.c | 0 .../skas/Makefile => tools/um/uml/skas/Build | 6 +-- {arch/um/os-Linux => tools/um/uml}/skas/mem.c | 0 .../os-Linux => tools/um/uml}/skas/process.c | 3 +- {arch/um/os-Linux => tools/um/uml}/start_up.c | 0 {arch/um/os-Linux => tools/um/uml}/time.c | 0 {arch/um/os-Linux => tools/um/uml}/tty.c | 0 {arch/um/os-Linux => tools/um/uml}/umid.c | 0 {arch/um/os-Linux => tools/um/uml}/util.c | 0 35 files changed, 74 insertions(+), 46 deletions(-) rename arch/um/{os-Linux => }/drivers/ethertap_kern.c (100%) rename arch/um/{os-Linux => }/drivers/tuntap_kern.c (100%) rename arch/um/{os-Linux/drivers => include/shared}/etap.h (100%) rename arch/um/{os-Linux/drivers => include/shared}/tuntap.h (100%) rename arch/um/{os-Linux => kernel}/user_syms.c (100%) delete mode 100644 arch/um/os-Linux/Makefile delete mode 100644 arch/um/os-Linux/drivers/Makefile create mode 100644 tools/um/uml/drivers/Build rename {arch/um/os-Linux => tools/um/uml}/drivers/ethertap_user.c (100%) rename {arch/um/os-Linux => tools/um/uml}/drivers/tuntap_user.c (100%) rename {arch/um/os-Linux => tools/um/uml}/elf_aux.c (100%) rename {arch/um/os-Linux => tools/um/uml}/execvp.c (98%) rename {arch/um/os-Linux => tools/um/uml}/file.c (100%) rename {arch/um/os-Linux => tools/um/uml}/helper.c (100%) rename {arch/um/os-Linux => tools/um/uml}/irq.c (100%) rename {arch/um/os-Linux => tools/um/uml}/main.c (100%) rename {arch/um/os-Linux => tools/um/uml}/mem.c (100%) rename {arch/um/os-Linux => tools/um/uml}/process.c (100%) rename {arch/um/os-Linux => tools/um/uml}/registers.c (100%) rename {arch/um/os-Linux => tools/um/uml}/sigio.c (100%) rename {arch/um/os-Linux => tools/um/uml}/signal.c (100%) rename arch/um/os-Linux/skas/Makefile => tools/um/uml/skas/Build (56%) rename {arch/um/os-Linux => tools/um/uml}/skas/mem.c (100%) rename {arch/um/os-Linux => tools/um/uml}/skas/process.c (99%) rename {arch/um/os-Linux => tools/um/uml}/start_up.c (100%) rename {arch/um/os-Linux => tools/um/uml}/time.c (100%) rename {arch/um/os-Linux => tools/um/uml}/tty.c (100%) rename {arch/um/os-Linux => tools/um/uml}/umid.c (100%) rename {arch/um/os-Linux => tools/um/uml}/util.c (100%) diff --git a/arch/um/Makefile b/arch/um/Makefile index 09745b40c52d..8be7bc479442 100644 --- a/arch/um/Makefile +++ b/arch/um/Makefile @@ -24,8 +24,7 @@ OS := $(shell uname -s) SHELL := /bin/bash core-y += $(ARCH_DIR)/kernel/ \ - $(ARCH_DIR)/drivers/ \ - $(ARCH_DIR)/os-$(OS)/ + $(ARCH_DIR)/drivers/ MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include/shared/skas diff --git a/arch/um/drivers/Makefile b/arch/um/drivers/Makefile index 2a249f619467..ae96c83e312d 100644 --- a/arch/um/drivers/Makefile +++ b/arch/um/drivers/Makefile @@ -48,6 +48,8 @@ obj-$(CONFIG_UML_NET_VECTOR) += vector.o obj-$(CONFIG_UML_NET_VDE) += vde.o obj-$(CONFIG_UML_NET_MCAST) += umcast.o obj-$(CONFIG_UML_NET_PCAP) += pcap.o +obj-$(CONFIG_UML_NET_ETHERTAP) += ethertap_kern.o +obj-$(CONFIG_UML_NET_TUNTAP) += tuntap_kern.o obj-$(CONFIG_UML_NET) += net.o obj-$(CONFIG_MCONSOLE) += mconsole.o obj-$(CONFIG_MMAPPER) += mmapper_kern.o diff --git a/arch/um/os-Linux/drivers/ethertap_kern.c b/arch/um/drivers/ethertap_kern.c similarity index 100% rename from arch/um/os-Linux/drivers/ethertap_kern.c rename to arch/um/drivers/ethertap_kern.c diff --git a/arch/um/os-Linux/drivers/tuntap_kern.c b/arch/um/drivers/tuntap_kern.c similarity index 100% rename from arch/um/os-Linux/drivers/tuntap_kern.c rename to arch/um/drivers/tuntap_kern.c diff --git a/arch/um/os-Linux/drivers/etap.h b/arch/um/include/shared/etap.h similarity index 100% rename from arch/um/os-Linux/drivers/etap.h rename to arch/um/include/shared/etap.h diff --git a/arch/um/include/shared/init.h b/arch/um/include/shared/init.h index d09308330ca5..305789667584 100644 --- a/arch/um/include/shared/init.h +++ b/arch/um/include/shared/init.h @@ -41,7 +41,12 @@ typedef int (*initcall_t)(void); typedef void (*exitcall_t)(void); +#ifndef __UM_HOST__ #include +#else +#define __used __attribute__((__used__)) +#define __section(S) __attribute__((__section__(#S))) +#endif /* These are for everybody (although not all archs will actually discard it in modules) */ diff --git a/arch/um/os-Linux/drivers/tuntap.h b/arch/um/include/shared/tuntap.h similarity index 100% rename from arch/um/os-Linux/drivers/tuntap.h rename to arch/um/include/shared/tuntap.h diff --git a/arch/um/kernel/Makefile b/arch/um/kernel/Makefile index 5aa882011e04..9b63831a69e1 100644 --- a/arch/um/kernel/Makefile +++ b/arch/um/kernel/Makefile @@ -24,6 +24,7 @@ obj-$(CONFIG_GPROF) += gprof_syms.o obj-$(CONFIG_GCOV) += gmon_syms.o obj-$(CONFIG_EARLY_PRINTK) += early_printk.o obj-$(CONFIG_STACKTRACE) += stacktrace.o +obj-y += user_syms.o USER_OBJS := config.o diff --git a/arch/um/os-Linux/user_syms.c b/arch/um/kernel/user_syms.c similarity index 100% rename from arch/um/os-Linux/user_syms.c rename to arch/um/kernel/user_syms.c diff --git a/arch/um/os-Linux/Makefile b/arch/um/os-Linux/Makefile deleted file mode 100644 index 839915b8c31c..000000000000 --- a/arch/um/os-Linux/Makefile +++ /dev/null @@ -1,19 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) -# - -# Don't instrument UML-specific code -KCOV_INSTRUMENT := n - -obj-y = execvp.o file.o helper.o irq.o main.o mem.o process.o \ - registers.o sigio.o signal.o start_up.o time.o tty.o \ - umid.o user_syms.o util.o drivers/ skas/ - -obj-$(CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA) += elf_aux.o - -USER_OBJS := $(user-objs-y) elf_aux.o execvp.o file.o helper.o irq.o \ - main.o mem.o process.o registers.o sigio.o signal.o start_up.o time.o \ - tty.o umid.o util.o - -include arch/um/scripts/Makefile.rules diff --git a/arch/um/os-Linux/drivers/Makefile b/arch/um/os-Linux/drivers/Makefile deleted file mode 100644 index d79e75f1b69a..000000000000 --- a/arch/um/os-Linux/drivers/Makefile +++ /dev/null @@ -1,13 +0,0 @@ -# SPDX-License-Identifier: GPL-2.0 -# -# Copyright (C) 2000, 2002 Jeff Dike (jdike@karaya.com) -# - -ethertap-objs := ethertap_kern.o ethertap_user.o -tuntap-objs := tuntap_kern.o tuntap_user.o - -obj-y = -obj-$(CONFIG_UML_NET_ETHERTAP) += ethertap.o -obj-$(CONFIG_UML_NET_TUNTAP) += tuntap.o - -include arch/um/scripts/Makefile.rules diff --git a/tools/um/Makefile b/tools/um/Makefile index a63466ef7ef5..07b9b93ed817 100644 --- a/tools/um/Makefile +++ b/tools/um/Makefile @@ -50,7 +50,7 @@ $(OUTPUT)lib/linux.o: $(Q)CFLAGS= $(MAKE) -C ../.. ARCH=um $(KOPT) $(KCONFIG) $(Q)CFLAGS= $(MAKE) -C ../.. ARCH=um $(KOPT) install INSTALL_PATH=$(OUTPUT) -$(OUTPUT)liblinux.a: $(OUTPUT)lib/linux.o $(OUTPUT)uml/liblinux-in.o +$(OUTPUT)liblinux.a: $(OUTPUT)lib/linux.o $(OUTPUT)uml/liblinux-in.o $(OUTPUT)lib/liblinux-in.o $(QUIET_AR)$(AR) -rc $@ $^ # rule to link programs @@ -60,6 +60,10 @@ $(OUTPUT)%: $(OUTPUT)%-in.o $(OUTPUT)liblinux.a $(OUTPUT)%-in.o: FORCE $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(patsubst %/,%,$(dir $*)) obj=$(notdir $*) +# rule to build objects +$(OUTPUT)%-in.o: $(OUTPUT)lib/linux.o + $(Q)$(MAKE) -f $(srctree)/tools/build/Makefile.build dir=$(patsubst %/,%,$(dir $*)) obj=$(notdir $*) + clean: $(call QUIET_CLEAN, objects)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd'\ -delete -o -name '\.*.d' -delete diff --git a/tools/um/uml/Build b/tools/um/uml/Build index e69de29bb2d1..ad93c6ad51fc 100644 --- a/tools/um/uml/Build +++ b/tools/um/uml/Build @@ -0,0 +1,48 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) +# + +# Don't instrument UML-specific code +KCOV_INSTRUMENT := n + +include $(objtree)/include/config/auto.conf + +liblinux-y += execvp.o file.o helper.o irq.o main.o mem.o process.o \ + registers.o sigio.o signal.o start_up.o time.o tty.o \ + umid.o util.o drivers/ skas/ + +liblinux-$(CONFIG_ARCH_REUSE_HOST_VSYSCALL_AREA) += elf_aux.o + +export O = $(srctree) +objtree := $(O) +# reset CFLAGS +CFLAGS := -g -O2 + +# from arch/um/Makefile +ARCH_DIR := arch/um +HEADER_ARCH := x86 +HOST_DIR := arch/$(HEADER_ARCH) +ifdef CONFIG_64BIT + KBUILD_CFLAGS += -mcmodel=large +endif +KBUILD_CFLAGS += $(CFLAGS) $(CFLAGS-y) -D__arch_um__ \ + $(ARCH_INCLUDE) $(MODE_INCLUDE) -Dvmap=kernel_vmap \ + -Dlongjmp=kernel_longjmp -Dsetjmp=kernel_setjmp \ + -Din6addr_loopback=kernel_in6addr_loopback \ + -Din6addr_any=kernel_in6addr_any -Dstrrchr=kernel_strrchr +SHARED_HEADERS := $(ARCH_DIR)/include/shared +MODE_INCLUDE += -I$(srctree)/$(ARCH_DIR)/include/shared/skas +ARCH_INCLUDE := -I$(srctree)/$(SHARED_HEADERS) +ARCH_INCLUDE += -I$(srctree)/$(HOST_DIR)/um/shared +KBUILD_CPPFLAGS += -I$(srctree)/$(HOST_DIR)/um +USER_CFLAGS := $(patsubst $(KERNEL_DEFINES),,$(patsubst -I%,,$(KBUILD_CFLAGS))) \ + $(ARCH_INCLUDE) $(MODE_INCLUDE) $(filter -I%,$(CFLAGS)) \ + -D_FILE_OFFSET_BITS=64 -idirafter $(srctree)/include/uapi \ + -idirafter $(objtree)/include -D__KERNEL__ -D__UM_HOST__ + +# from Makefile-os-Linux +USER_CFLAGS += -D_GNU_SOURCE -D_LARGEFILE64_SOURCE + +# from Makefile.rules +CFLAGS += $(USER_CFLAGS) -include $(srctree)/tools/include/linux/kern_levels.h -include user.h $(CFLAGS_$(basetarget).o) diff --git a/tools/um/uml/drivers/Build b/tools/um/uml/drivers/Build new file mode 100644 index 000000000000..c7a8eaa97d72 --- /dev/null +++ b/tools/um/uml/drivers/Build @@ -0,0 +1,10 @@ +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (C) 2000, 2002 Jeff Dike (jdike@karaya.com) +# + +include $(objtree)/include/config/auto.conf + + +liblinux-$(CONFIG_UML_NET_ETHERTAP) += ethertap_user.o +liblinux-$(CONFIG_UML_NET_TUNTAP) += tuntap_user.o diff --git a/arch/um/os-Linux/drivers/ethertap_user.c b/tools/um/uml/drivers/ethertap_user.c similarity index 100% rename from arch/um/os-Linux/drivers/ethertap_user.c rename to tools/um/uml/drivers/ethertap_user.c diff --git a/arch/um/os-Linux/drivers/tuntap_user.c b/tools/um/uml/drivers/tuntap_user.c similarity index 100% rename from arch/um/os-Linux/drivers/tuntap_user.c rename to tools/um/uml/drivers/tuntap_user.c diff --git a/arch/um/os-Linux/elf_aux.c b/tools/um/uml/elf_aux.c similarity index 100% rename from arch/um/os-Linux/elf_aux.c rename to tools/um/uml/elf_aux.c diff --git a/arch/um/os-Linux/execvp.c b/tools/um/uml/execvp.c similarity index 98% rename from arch/um/os-Linux/execvp.c rename to tools/um/uml/execvp.c index 84a0777c2a45..c105e0e7b778 100644 --- a/arch/um/os-Linux/execvp.c +++ b/tools/um/uml/execvp.c @@ -26,12 +26,8 @@ #include #include -#ifndef TEST -#include -#else #include #define um_kmalloc malloc -#endif #include /* Execute FILE, searching in the `PATH' environment variable if it contains diff --git a/arch/um/os-Linux/file.c b/tools/um/uml/file.c similarity index 100% rename from arch/um/os-Linux/file.c rename to tools/um/uml/file.c diff --git a/arch/um/os-Linux/helper.c b/tools/um/uml/helper.c similarity index 100% rename from arch/um/os-Linux/helper.c rename to tools/um/uml/helper.c diff --git a/arch/um/os-Linux/irq.c b/tools/um/uml/irq.c similarity index 100% rename from arch/um/os-Linux/irq.c rename to tools/um/uml/irq.c diff --git a/arch/um/os-Linux/main.c b/tools/um/uml/main.c similarity index 100% rename from arch/um/os-Linux/main.c rename to tools/um/uml/main.c diff --git a/arch/um/os-Linux/mem.c b/tools/um/uml/mem.c similarity index 100% rename from arch/um/os-Linux/mem.c rename to tools/um/uml/mem.c diff --git a/arch/um/os-Linux/process.c b/tools/um/uml/process.c similarity index 100% rename from arch/um/os-Linux/process.c rename to tools/um/uml/process.c diff --git a/arch/um/os-Linux/registers.c b/tools/um/uml/registers.c similarity index 100% rename from arch/um/os-Linux/registers.c rename to tools/um/uml/registers.c diff --git a/arch/um/os-Linux/sigio.c b/tools/um/uml/sigio.c similarity index 100% rename from arch/um/os-Linux/sigio.c rename to tools/um/uml/sigio.c diff --git a/arch/um/os-Linux/signal.c b/tools/um/uml/signal.c similarity index 100% rename from arch/um/os-Linux/signal.c rename to tools/um/uml/signal.c diff --git a/arch/um/os-Linux/skas/Makefile b/tools/um/uml/skas/Build similarity index 56% rename from arch/um/os-Linux/skas/Makefile rename to tools/um/uml/skas/Build index c4566e788815..5fc9d62df863 100644 --- a/arch/um/os-Linux/skas/Makefile +++ b/tools/um/uml/skas/Build @@ -3,8 +3,4 @@ # Copyright (C) 2002 - 2007 Jeff Dike (jdike@{linux.intel,addtoit}.com) # -obj-y := mem.o process.o - -USER_OBJS := $(obj-y) - -include arch/um/scripts/Makefile.rules +liblinux-y += mem.o process.o diff --git a/arch/um/os-Linux/skas/mem.c b/tools/um/uml/skas/mem.c similarity index 100% rename from arch/um/os-Linux/skas/mem.c rename to tools/um/uml/skas/mem.c diff --git a/arch/um/os-Linux/skas/process.c b/tools/um/uml/skas/process.c similarity index 99% rename from arch/um/os-Linux/skas/process.c rename to tools/um/uml/skas/process.c index 4fb877b99dde..fca6a08e81bd 100644 --- a/arch/um/os-Linux/skas/process.c +++ b/tools/um/uml/skas/process.c @@ -21,7 +21,6 @@ #include #include #include -#include int is_skas_winch(int pid, int fd, void *data) { @@ -248,7 +247,7 @@ static int userspace_tramp(void *stack) return 0; } -int userspace_pid[NR_CPUS]; +int userspace_pid[UM_NR_CPUS]; /** * start_userspace() - prepare a new userspace process diff --git a/arch/um/os-Linux/start_up.c b/tools/um/uml/start_up.c similarity index 100% rename from arch/um/os-Linux/start_up.c rename to tools/um/uml/start_up.c diff --git a/arch/um/os-Linux/time.c b/tools/um/uml/time.c similarity index 100% rename from arch/um/os-Linux/time.c rename to tools/um/uml/time.c diff --git a/arch/um/os-Linux/tty.c b/tools/um/uml/tty.c similarity index 100% rename from arch/um/os-Linux/tty.c rename to tools/um/uml/tty.c diff --git a/arch/um/os-Linux/umid.c b/tools/um/uml/umid.c similarity index 100% rename from arch/um/os-Linux/umid.c rename to tools/um/uml/umid.c diff --git a/arch/um/os-Linux/util.c b/tools/um/uml/util.c similarity index 100% rename from arch/um/os-Linux/util.c rename to tools/um/uml/util.c -- 2.21.0 (Apple Git-122.2)