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4920a2590e
This adds two tests for vgetrandom. The first one, vdso_test_chacha, simply checks that the assembly implementation of chacha20 matches that of libsodium, a basic sanity check that should catch most errors. The second, vdso_test_getrandom, is a full "libc-like" implementation of the userspace side of vgetrandom() support. It's meant to be used also as example code for libcs that might be integrating this. Cc: linux-kselftest@vger.kernel.org Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
49 lines
1.9 KiB
Makefile
49 lines
1.9 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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uname_M := $(shell uname -m 2>/dev/null || echo not)
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ARCH ?= $(shell echo $(uname_M) | sed -e s/i.86/x86/ -e s/x86_64/x86/)
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SODIUM := $(shell pkg-config --libs libsodium 2>/dev/null)
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TEST_GEN_PROGS := vdso_test_gettimeofday
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TEST_GEN_PROGS += vdso_test_getcpu
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TEST_GEN_PROGS += vdso_test_abi
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TEST_GEN_PROGS += vdso_test_clock_getres
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ifeq ($(ARCH),$(filter $(ARCH),x86 x86_64))
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TEST_GEN_PROGS += vdso_standalone_test_x86
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endif
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TEST_GEN_PROGS += vdso_test_correctness
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ifeq ($(uname_M),x86_64)
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TEST_GEN_PROGS += vdso_test_getrandom
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ifneq ($(SODIUM),)
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TEST_GEN_PROGS += vdso_test_chacha
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endif
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endif
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CFLAGS := -std=gnu99
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ifeq ($(CONFIG_X86_32),y)
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LDLIBS += -lgcc_s
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endif
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include ../lib.mk
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$(OUTPUT)/vdso_test_gettimeofday: parse_vdso.c vdso_test_gettimeofday.c
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$(OUTPUT)/vdso_test_getcpu: parse_vdso.c vdso_test_getcpu.c
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$(OUTPUT)/vdso_test_abi: parse_vdso.c vdso_test_abi.c
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$(OUTPUT)/vdso_test_clock_getres: vdso_test_clock_getres.c
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$(OUTPUT)/vdso_standalone_test_x86: vdso_standalone_test_x86.c parse_vdso.c
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$(OUTPUT)/vdso_standalone_test_x86: CFLAGS +=-nostdlib -fno-asynchronous-unwind-tables -fno-stack-protector
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$(OUTPUT)/vdso_test_correctness: vdso_test_correctness.c
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$(OUTPUT)/vdso_test_correctness: LDFLAGS += -ldl
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$(OUTPUT)/vdso_test_getrandom: parse_vdso.c
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$(OUTPUT)/vdso_test_getrandom: CFLAGS += -isystem $(top_srcdir)/tools/include \
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-isystem $(top_srcdir)/include/uapi
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$(OUTPUT)/vdso_test_chacha: $(top_srcdir)/arch/$(ARCH)/entry/vdso/vgetrandom-chacha.S
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$(OUTPUT)/vdso_test_chacha: CFLAGS += -idirafter $(top_srcdir)/tools/include \
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-isystem $(top_srcdir)/arch/$(ARCH)/include \
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-isystem $(top_srcdir)/include \
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-D__ASSEMBLY__ -DBULID_VDSO -DCONFIG_FUNCTION_ALIGNMENT=0 \
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-Wa,--noexecstack $(SODIUM)
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