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https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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The extended general-purpose registers for APX may contain random data, which is currently assumed by the xstate testing framework. This allows the testing of the new userspace feature using the common test code. Invoke the test entry function from apx.c after enumerating the state component and adding it to the support list Signed-off-by: Chang S. Bae <chang.seok.bae@intel.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Sohil Mehta <sohil.mehta@intel.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Link: https://lore.kernel.org/r/20250416021720.12305-6-chang.seok.bae@intel.com
140 lines
4.9 KiB
Makefile
140 lines
4.9 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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all:
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include ../lib.mk
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.PHONY: all all_32 all_64 warn_32bit_failure clean
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UNAME_M := $(shell uname -m)
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CAN_BUILD_I386 := $(shell ./check_cc.sh "$(CC)" trivial_32bit_program.c -m32)
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CAN_BUILD_X86_64 := $(shell ./check_cc.sh "$(CC)" trivial_64bit_program.c)
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CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh "$(CC)" trivial_program.c -no-pie)
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TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \
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check_initial_reg_state sigreturn iopl ioperm \
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test_vsyscall mov_ss_trap \
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syscall_arg_fault fsgsbase_restore sigaltstack
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TARGETS_C_BOTHBITS += nx_stack
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TARGETS_C_32BIT_ONLY := entry_from_vm86 test_syscall_vdso unwind_vdso \
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test_FCMOV test_FCOMI test_FISTTP \
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vdso_restorer
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TARGETS_C_64BIT_ONLY := fsgsbase sysret_rip syscall_numbering \
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corrupt_xstate_header amx lam test_shadow_stack avx apx
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# Some selftests require 32bit support enabled also on 64bit systems
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TARGETS_C_32BIT_NEEDED := ldt_gdt ptrace_syscall
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TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY) $(TARGETS_C_32BIT_NEEDED)
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TARGETS_C_64BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_64BIT_ONLY)
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ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),11)
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TARGETS_C_64BIT_ALL += $(TARGETS_C_32BIT_NEEDED)
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endif
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BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
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BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64)
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BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32))
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BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64))
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CFLAGS := -O2 -g -std=gnu99 -pthread -Wall $(KHDR_INCLUDES)
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# call32_from_64 in thunks.S uses absolute addresses.
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ifeq ($(CAN_BUILD_WITH_NOPIE),1)
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CFLAGS += -no-pie
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ifneq ($(LLVM),)
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# clang only wants to see -no-pie during linking. Here, we don't have a separate
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# linking stage, so a compiler warning is unavoidable without (wastefully)
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# restructuring the Makefile. Avoid this by simply disabling that warning.
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CFLAGS += -Wno-unused-command-line-argument
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endif
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endif
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define gen-target-rule-32
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$(1) $(1)_32: $(OUTPUT)/$(1)_32
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.PHONY: $(1) $(1)_32
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endef
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define gen-target-rule-64
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$(1) $(1)_64: $(OUTPUT)/$(1)_64
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.PHONY: $(1) $(1)_64
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endef
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ifeq ($(CAN_BUILD_I386),1)
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all: all_32
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TEST_PROGS += $(BINARIES_32)
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EXTRA_CFLAGS += -DCAN_BUILD_32
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$(foreach t,$(TARGETS_C_32BIT_ALL),$(eval $(call gen-target-rule-32,$(t))))
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endif
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ifeq ($(CAN_BUILD_X86_64),1)
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all: all_64
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TEST_PROGS += $(BINARIES_64)
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EXTRA_CFLAGS += -DCAN_BUILD_64
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$(foreach t,$(TARGETS_C_64BIT_ALL),$(eval $(call gen-target-rule-64,$(t))))
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endif
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all_32: $(BINARIES_32)
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all_64: $(BINARIES_64)
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EXTRA_CLEAN := $(BINARIES_32) $(BINARIES_64) srso
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$(BINARIES_32): $(OUTPUT)/%_32: %.c helpers.h
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$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $< $(EXTRA_FILES) -lrt -ldl -lm
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$(BINARIES_64): $(OUTPUT)/%_64: %.c helpers.h
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$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $< $(EXTRA_FILES) -lrt -ldl
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# x86_64 users should be encouraged to install 32-bit libraries
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ifeq ($(CAN_BUILD_I386)$(CAN_BUILD_X86_64),01)
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all: warn_32bit_failure
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warn_32bit_failure:
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@echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
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echo "environment. This will reduce test coverage of 64-bit" 2>&1; \
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echo "kernels. If you are using a Debian-like distribution," 2>&1; \
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echo "try:"; 2>&1; \
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echo ""; \
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echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
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echo ""; \
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echo "If you are using a Fedora-like distribution, try:"; \
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echo ""; \
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echo " yum install glibc-devel.*i686"; \
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echo ""; \
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echo "If you are using a SUSE-like distribution, try:"; \
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echo ""; \
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echo " zypper install gcc-32bit glibc-devel-static-32bit"; \
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exit 0;
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endif
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# Add an additional file to the source file list for a given target, and also
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# add a Makefile dependency on that same file. However, do these separately, so
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# that the compiler invocation ("$(CC) file1.c file2.S") is not combined with
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# the dependencies ("header3.h"), because clang, unlike gcc, will not accept
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# header files as an input to the compiler invocation.
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define extra-files
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$(OUTPUT)/$(1): EXTRA_FILES := $(2)
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$(OUTPUT)/$(1): $(2)
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endef
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$(eval $(call extra-files,sysret_ss_attrs_64,thunks.S))
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$(eval $(call extra-files,ptrace_syscall_32,raw_syscall_helper_32.S))
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$(eval $(call extra-files,test_syscall_vdso_32,thunks_32.S))
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$(eval $(call extra-files,fsgsbase_restore_64,clang_helpers_64.S))
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$(eval $(call extra-files,fsgsbase_restore_32,clang_helpers_32.S))
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$(eval $(call extra-files,sysret_rip_64,clang_helpers_64.S))
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# check_initial_reg_state is special: it needs a custom entry, and it
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# needs to be static so that its interpreter doesn't destroy its initial
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# state.
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$(OUTPUT)/check_initial_reg_state_32: CFLAGS += -Wl,-ereal_start -static
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$(OUTPUT)/check_initial_reg_state_64: CFLAGS += -Wl,-ereal_start -static
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$(OUTPUT)/nx_stack_32: CFLAGS += -Wl,-z,noexecstack
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$(OUTPUT)/nx_stack_64: CFLAGS += -Wl,-z,noexecstack
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$(OUTPUT)/avx_64: CFLAGS += -mno-avx -mno-avx512f
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$(OUTPUT)/amx_64: EXTRA_FILES += xstate.c
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$(OUTPUT)/avx_64: EXTRA_FILES += xstate.c
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$(OUTPUT)/apx_64: EXTRA_FILES += xstate.c
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