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| author | Florian Weimer <fweimer@redhat.com> | 2018-05-02 15:10:32 +0300 |
|---|---|---|
| committer | Shuah Khan (Samsung OSG) <shuah@kernel.org> | 2018-05-31 00:21:51 +0300 |
| commit | 0dd3a6945f5dd4864db809ff015a493d80c65898 (patch) | |
| tree | eaf6acaf25a2a6de1527e92ceff5841306d3f38d /tools/testing | |
| parent | 0852991470e2d8f4bbc5233f0d3a9f36501c9e0f (diff) | |
| download | linux-0dd3a6945f5dd4864db809ff015a493d80c65898.tar.xz | |
selftests/x86: Detect -no-pie availability
Some toolchains need -no-pie to build all tests, others do not support
the -no-pie flag at all. Therefore, add another test for the
availability of the flag.
This amends commit 3346a6a4e5ba8c040360f753b26938cec31a4bdc
("selftests: x86: sysret_ss_attrs doesn't build on a PIE build").
Signed-off-by: Florian Weimer <fweimer@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Tested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
Diffstat (limited to 'tools/testing')
| -rw-r--r-- | tools/testing/selftests/x86/Makefile | 8 | ||||
| -rw-r--r-- | tools/testing/selftests/x86/trivial_program.c | 10 |
2 files changed, 17 insertions, 1 deletions
diff --git a/tools/testing/selftests/x86/Makefile b/tools/testing/selftests/x86/Makefile index 39f66bc29b82..186520198de7 100644 --- a/tools/testing/selftests/x86/Makefile +++ b/tools/testing/selftests/x86/Makefile @@ -8,6 +8,7 @@ include ../lib.mk UNAME_M := $(shell uname -m) CAN_BUILD_I386 := $(shell ./check_cc.sh $(CC) trivial_32bit_program.c -m32) CAN_BUILD_X86_64 := $(shell ./check_cc.sh $(CC) trivial_64bit_program.c) +CAN_BUILD_WITH_NOPIE := $(shell ./check_cc.sh $(CC) trivial_program.c -no-pie) TARGETS_C_BOTHBITS := single_step_syscall sysret_ss_attrs syscall_nt test_mremap_vdso \ check_initial_reg_state sigreturn iopl mpx-mini-test ioperm \ @@ -31,7 +32,12 @@ BINARIES_64 := $(TARGETS_C_64BIT_ALL:%=%_64) BINARIES_32 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_32)) BINARIES_64 := $(patsubst %,$(OUTPUT)/%,$(BINARIES_64)) -CFLAGS := -O2 -g -std=gnu99 -pthread -Wall -no-pie +CFLAGS := -O2 -g -std=gnu99 -pthread -Wall + +# call32_from_64 in thunks.S uses absolute addresses. +ifeq ($(CAN_BUILD_WITH_NOPIE),1) +CFLAGS += -no-pie +endif define gen-target-rule-32 $(1) $(1)_32: $(OUTPUT)/$(1)_32 diff --git a/tools/testing/selftests/x86/trivial_program.c b/tools/testing/selftests/x86/trivial_program.c new file mode 100644 index 000000000000..46a447163b93 --- /dev/null +++ b/tools/testing/selftests/x86/trivial_program.c @@ -0,0 +1,10 @@ +/* Trivial program to check that compilation with certain flags is working. */ + +#include <stdio.h> + +int +main(void) +{ + puts(""); + return 0; +} |