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linux-kselftest-4.1-rc4
Urgent fix for Kselftest regression introduced in 4.1-rc1 by the new x86 test due to its hard dependency on 32-bit build environment. A set of 5 patches fix the make kselftest run and kselftest install. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJVVippAAoJEAsCRMQNDUMctWgP/iVLHOTuJLsr7LB4DPZuMdeU RlNUkRaSbEpx8Ua8LLGnGHY3BlrOHTQ3WYN8wUc89DS85mpTJfFqS2RXBkg3na/e J5MYOr2q+tq1D7o6lvHRL0cTvxH4PP1FPtQJiQc8410m45IWtuPK8h8Gb0VLApMm M/Abbf/hlRAllL1sJj7SfEAErVaUTRzyJxfNbTbOMQWgneQNcumEl01R7G83ahFc avhtoJD4vL7JMJE01HI1sy2FGQHeMouXRlFuoQrC5jJm4l04jtX2iERqLprpPtDX /k0+FTtLxci+jNdYEDPQVAZoOQV+XDZR7BvR3r4etADLYWoTc2Ub+Kc98exq7C+q at3pyOWr0Gj+Q6fItZFpTBnsCu3Lc1zBxEL/rM4MZ5NN56JBwqZtQj1++e8SKOIe CnDCBoOw6M0tQzMIELKXjXFD1ah3OHrUAQawHVr5LCGoJsiLTg7r3OOFxWk/OA4R 8Alnt2U2PzAOWYieSQiA5TeoqHUSSM9pV04NpbjufA4bVas8vfsf8QEAqxw9o8iP mOzBhL8VbIMnu2KxF+q+T87Be/dT2px60qRfoSiVTMwmqWnu/R7E2jI0iXwkBjd4 it23jRW1NjnMUONFyxmqMYtoiyu3c3ZvzXvAPJz+aZEHd/jyuGBhOOJqU8M4L6yS 0N3BWyJ/6enYHMa4FdZk =09md -----END PGP SIGNATURE----- Merge tag 'linux-kselftest-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest Pull kselftest fixes from Shuah Khan: "Urgent fix for Kselftest regression introduced in 4.1-rc1 by the new x86 test due to its hard dependency on 32-bit build environment. A set of 5 patches fix the make kselftest run and kselftest install" * tag 'linux-kselftest-4.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests, x86: Rework x86 target architecture detection selftests, x86: Remove useless run_tests rule selftests/x86: install tests selftest/x86: have no dependency on all when cross building selftest/x86: build both bitnesses
This commit is contained in:
Linus Torvalds
commit
d70933beec
@ -1,4 +1,8 @@
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.PHONY: all all_32 all_64 check_build32 clean run_tests
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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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TARGETS_C_BOTHBITS := sigreturn single_step_syscall
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@ -7,42 +11,47 @@ BINARIES_64 := $(TARGETS_C_BOTHBITS:%=%_64)
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CFLAGS := -O2 -g -std=gnu99 -pthread -Wall
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UNAME_P := $(shell uname -p)
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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 $(CC) trivial_64bit_program.c)
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# Always build 32-bit tests
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ifeq ($(CAN_BUILD_I386),1)
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all: all_32
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# If we're on a 64-bit host, build 64-bit tests as well
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ifeq ($(shell uname -p),x86_64)
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all: all_64
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TEST_PROGS += $(BINARIES_32)
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endif
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all_32: check_build32 $(BINARIES_32)
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ifeq ($(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) $(BINARIES_64)
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run_tests:
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./run_x86_tests.sh
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$(TARGETS_C_BOTHBITS:%=%_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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check_build32:
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@if ! $(CC) -m32 -o /dev/null trivial_32bit_program.c; then \
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echo "Warning: you seem to have a broken 32-bit build" 2>&1; \
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echo "environment. If you are using a Debian-like"; \
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echo " distribution, try:"; \
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echo ""; \
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echo " apt-get install gcc-multilib libc6-i386 libc6-dev-i386"; \
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echo ""; \
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echo "If you are using a Fedora-like distribution, try:"; \
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echo ""; \
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echo " yum install glibc-devel.*i686"; \
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exit 1; \
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fi
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# x86_64 users should be encouraged to install 32-bit libraries
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ifeq ($(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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16
tools/testing/selftests/x86/check_cc.sh
Executable file
16
tools/testing/selftests/x86/check_cc.sh
Executable file
@ -0,0 +1,16 @@
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#!/bin/sh
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# check_cc.sh - Helper to test userspace compilation support
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# Copyright (c) 2015 Andrew Lutomirski
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# GPL v2
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CC="$1"
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TESTPROG="$2"
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shift 2
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if "$CC" -o /dev/null "$TESTPROG" -O0 "$@" 2>/dev/null; then
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echo 1
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else
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echo 0
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fi
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exit 0
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@ -1,13 +0,0 @@
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#!/bin/bash
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# This is deliberately minimal. IMO kselftests should provide a standard
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# script here.
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./sigreturn_32 || exit 1
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./single_step_syscall_32 || exit 1
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if [[ "$uname -p" -eq "x86_64" ]]; then
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./sigreturn_64 || exit 1
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./single_step_syscall_64 || exit 1
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fi
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exit 0
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@ -4,6 +4,10 @@
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* GPL v2
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*/
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#ifndef __i386__
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# error wrong architecture
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#endif
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#include <stdio.h>
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int main()
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18
tools/testing/selftests/x86/trivial_64bit_program.c
Normal file
18
tools/testing/selftests/x86/trivial_64bit_program.c
Normal file
@ -0,0 +1,18 @@
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/*
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* Trivial program to check that we have a valid 32-bit build environment.
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* Copyright (c) 2015 Andy Lutomirski
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* GPL v2
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*/
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#ifndef __x86_64__
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# error wrong architecture
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#endif
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#include <stdio.h>
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int main()
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{
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printf("\n");
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return 0;
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}
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