Commit 0dd3a694 authored by Florian Weimer's avatar Florian Weimer Committed by Shuah Khan (Samsung OSG)
Browse files

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 3346a6a4
("selftests: x86: sysret_ss_attrs doesn't build on a PIE build").

Signed-off-by: default avatarFlorian Weimer <fweimer@redhat.com>
Acked-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Tested-by: default avatarRandy Dunlap <rdunlap@infradead.org>
Signed-off-by: default avatarShuah Khan (Samsung OSG) <shuah@kernel.org>
parent 08529914

tools/testing/selftests/x86/Makefile

+7 −1
Original line number Diff line number Diff line
@@ -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

tools/testing/selftests/x86/trivial_program.c

0 → 100644
+10 −0
Original line number Diff line number Diff line 
/* Trivial program to check that compilation with certain flags is working. */



#include <stdio.h>



int

main(void)

{

	puts("");

	return 0;

}

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