WSL2-Linux-Kernel/Documentation/vDSO/Makefile

ifndef CROSS_COMPILE
# vdso_test won't build for glibc < 2.16, so disable it
# hostprogs-y := vdso_test
hostprogs-$(CONFIG_X86) := vdso_standalone_test_x86
vdso_standalone_test_x86-objs := vdso_standalone_test_x86.o parse_vdso.o
vdso_test-objs := parse_vdso.o vdso_test.o

# Tell kbuild to always build the programs
always := $(hostprogs-y)

HOSTCFLAGS := -I$(objtree)/usr/include -std=gnu99
HOSTCFLAGS_vdso_standalone_test_x86.o := -fno-asynchronous-unwind-tables -fno-stack-protector
HOSTLOADLIBES_vdso_standalone_test_x86 := -nostdlib
ifeq ($(CONFIG_X86_32),y)
HOSTLOADLIBES_vdso_standalone_test_x86 += -lgcc_s
endif
endif
Documentation/vDSO: don't build tests when cross compiling The following was seen in linux-next build coverage, which is somewhat unique since it uses powerpc host to cross compile x86: Documentation/vDSO/vdso_standalone_test_x86.c:49:2: error: impossible register constraint in 'asm' make[4]: *** [Documentation/vDSO/vdso_standalone_test_x86.o] Error 1 It probably makes sense to just skip building these tests when we are cross compiling. Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> 2015-06-21 04:10:28 +03:00			`ifndef CROSS_COMPILE`
Documentation: disable vdso_test to avoid breakage with old glibc glibc versions older than 2.16 don't include sys/auxv.h which this executable uses. Since we don't have a good way to test for specific glibc versions in kbuild, just disable it for now. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 2014-09-25 22:23:48 +04:00			`# vdso_test won't build for glibc < 2.16, so disable it`
			`# hostprogs-y := vdso_test`
Documentation: update vDSO makefile to build portable examples Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 2014-09-25 22:23:43 +04:00			`hostprogs-$(CONFIG_X86) := vdso_standalone_test_x86`
			`vdso_standalone_test_x86-objs := vdso_standalone_test_x86.o parse_vdso.o`
Documentation: add makefiles for more targets Add a bunch of previously unbuilt source files to the Documentation build machinery. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 2014-09-25 22:23:09 +04:00			`vdso_test-objs := parse_vdso.o vdso_test.o`

			`# Tell kbuild to always build the programs`
Documentation: update vDSO makefile to build portable examples Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 2014-09-25 22:23:43 +04:00			`always := $(hostprogs-y)`
Documentation: add makefiles for more targets Add a bunch of previously unbuilt source files to the Documentation build machinery. Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 2014-09-25 22:23:09 +04:00
			`HOSTCFLAGS := -I$(objtree)/usr/include -std=gnu99`
Documentation: update vDSO makefile to build portable examples Signed-off-by: Peter Foley <pefoley2@pefoley.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz> 2014-09-25 22:23:43 +04:00			`HOSTCFLAGS_vdso_standalone_test_x86.o := -fno-asynchronous-unwind-tables -fno-stack-protector`
			`HOSTLOADLIBES_vdso_standalone_test_x86 := -nostdlib`
Documentation: fix vdso_standalone_test_x86 on 32-bit vdso_standalone_test_x86 needs -lgcc_s to build succesfully on 32bit. Signed-off-by: Peter Foley <pefoley2@pefoley.com> [ Fixed missing separator issue reported by Paul Bolle <pebolle@tiscali.nl> ] Signed-off-by: Jonathan Corbet <corbet@lwn.net> 2014-10-08 23:49:24 +04:00			`ifeq ($(CONFIG_X86_32),y)`
			`HOSTLOADLIBES_vdso_standalone_test_x86 += -lgcc_s`
			`endif`
Documentation/vDSO: don't build tests when cross compiling The following was seen in linux-next build coverage, which is somewhat unique since it uses powerpc host to cross compile x86: Documentation/vDSO/vdso_standalone_test_x86.c:49:2: error: impossible register constraint in 'asm' make[4]: *** [Documentation/vDSO/vdso_standalone_test_x86.o] Error 1 It probably makes sense to just skip building these tests when we are cross compiling. Cc: Jonathan Corbet <corbet@lwn.net> Cc: linux-doc@vger.kernel.org Cc: Andy Lutomirski <luto@amacapital.net> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> 2015-06-21 04:10:28 +03:00			`endif`