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a9c909ce8c
I've had this sitting around for a while. Add it to the selftests tree. Far Cry running under Wine depends on this behavior. Signed-off-by: Andy Lutomirski <luto@kernel.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Shuah Khan <shuahkh@osg.samsung.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/ee4d63799a9e5294b70930618b71d04d2770eb2d.1439838962.git.luto@kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
63 lines
1.7 KiB
Makefile
63 lines
1.7 KiB
Makefile
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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TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs ldt_gdt syscall_nt
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TARGETS_C_32BIT_ONLY := entry_from_vm86 syscall_arg_fault sigreturn
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TARGETS_C_32BIT_ALL := $(TARGETS_C_BOTHBITS) $(TARGETS_C_32BIT_ONLY)
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BINARIES_32 := $(TARGETS_C_32BIT_ALL:%=%_32)
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BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)
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CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
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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 $(CC) trivial_64bit_program.c)
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ifeq ($(CAN_BUILD_I386),1)
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all: all_32
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TEST_PROGS += $(BINARIES_32)
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endif
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ifeq ($(CAN_BUILD_X86_64),1)
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all: all_64
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TEST_PROGS += $(BINARIES_64)
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endif
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all_32: $(BINARIES_32)
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all_64: $(BINARIES_64)
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clean:
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$(RM) $(BINARIES_32) $(BINARIES_64)
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$(TARGETS_C_32BIT_ALL:%=%_32): %_32: %.c
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$(CC) -m32 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
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$(TARGETS_C_BOTHBITS:%=%_64): %_64: %.c
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$(CC) -m64 -o $@ $(CFLAGS) $(EXTRA_CFLAGS) $^ -lrt -ldl
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# x86_64 users should be encouraged to install 32-bit libraries
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ifeq ($(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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exit 0;
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endif
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# Some tests have additional dependencies.
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sysret_ss_attrs_64: thunks.S
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