Re: [PATCH 1/2] kvm: selftests: Fix no directory error when OUTPUT specified

From: Xiaoyao Li
Date: Mon Mar 23 2020 - 21:51:38 EST


On 3/23/2020 11:40 PM, shuah wrote:
On 3/15/20 3:34 AM, Xiaoyao Li wrote:
When build kvm selftests to an specified directory with

ÂÂÂÂmake OUTPUT=~/kvm-selftests

it encouters following errorï

btw lib.mk can't handle relative paths yet. The problems
you are seeing are related to that as well.

I tried with absolute path as well. It didn't work.

This relative
path issue should be fixed in lib.mk and not in individual
tests.

OK. I'll try to fix it in lib.mk


/usr/bin/ld: cannot open output file
/home/lxy/kvm-selftests/x86_64/cr4_cpuid_sync_test: No such file or
directory
collect2: error: ld returned 1 exit status
make: *** [../lib.mk:141:
/home/lxy/kvm-selftests/x86_64/cr4_cpuid_sync_test] Error 1

Signed-off-by: Xiaoyao Li <xiaoyao.li@xxxxxxxxx>
---
 tools/testing/selftests/kvm/Makefile | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/testing/selftests/kvm/Makefile b/tools/testing/selftests/kvm/Makefile
index d91c53b726e6..86797e0242d4 100644
--- a/tools/testing/selftests/kvm/Makefile
+++ b/tools/testing/selftests/kvm/Makefile
@@ -66,6 +66,7 @@ LDFLAGS += -pthread $(no-pie-option) $(pgste-option)
 # After inclusion, $(OUTPUT) is defined and
 # $(TEST_GEN_PROGS) starts with $(OUTPUT)/
 include ../lib.mk
+x := $(shell mkdir -p $(sort $(dir $(TEST_GEN_PROGS))))

lib.mk would have created the directory.

thanks,
-- Shuah