[kvm-unit-tests PATCH v7 33/35] configure: Make arch_libdir a first-class entity

[Nicholas Piggin <npiggin@gmail.com>]

arch_libdir was brought in to improve the heuristic determination of
the lib/ directory based on arch and testdir names, but it did not
entirely clean that mess up.

Remove the arch_libdir->arch->testdir heuristic and just require
everybody sets arch_libdir correctly. Fail if the lib/arch or
lib/arch/asm directories can not be found.

Cc: Alexandru Elisei <alexandru.elisei@arm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Laurent Vivier <lvivier@redhat.com>
Cc: Nico Böhr <nrb@linux.ibm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Thomas Huth <thuth@redhat.com>
Cc: kvm@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: kvmarm@lists.linux.dev
Cc: kvm-riscv@lists.infradead.org
Cc: linuxppc-dev@lists.ozlabs.org
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
 Makefile  |  2 +-
 configure | 18 +++++++++++++-----
 2 files changed, 14 insertions(+), 6 deletions(-)

diff --git a/Makefile b/Makefile
index 4f35fffc6..4e0f54543 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ include config.mak
 VPATH = $(SRCDIR)
 
 libdirs-get = $(shell [ -d "lib/$(1)" ] && echo "lib/$(1) lib/$(1)/asm")
-ARCH_LIBDIRS := $(call libdirs-get,$(ARCH_LIBDIR)) $(call libdirs-get,$(TEST_DIR))
+ARCH_LIBDIRS := $(call libdirs-get,$(ARCH_LIBDIR))
 OBJDIRS := $(ARCH_LIBDIRS)
 
 DESTDIR := $(PREFIX)/share/kvm-unit-tests/
diff --git a/configure b/configure
index e19ba6f0c..a1308db8e 100755
--- a/configure
+++ b/configure
@@ -216,7 +216,6 @@ fi
 arch_name=$arch
 [ "$arch" = "aarch64" ] && arch="arm64"
 [ "$arch_name" = "arm64" ] && arch_name="aarch64"
-arch_libdir=$arch
 
 if [ "$arch" = "riscv" ]; then
     echo "riscv32 or riscv64 must be specified"
@@ -286,8 +285,10 @@ fi
 
 if [ "$arch" = "i386" ] || [ "$arch" = "x86_64" ]; then
     testdir=x86
+    arch_libdir=x86
 elif [ "$arch" = "arm" ] || [ "$arch" = "arm64" ]; then
     testdir=arm
+    arch_libdir=$arch
     if [ "$target" = "qemu" ]; then
         arm_uart_early_addr=0x09000000
     elif [ "$target" = "kvmtool" ]; then
@@ -336,6 +337,7 @@ elif [ "$arch" = "arm" ] || [ "$arch" = "arm64" ]; then
     fi
 elif [ "$arch" = "ppc64" ]; then
     testdir=powerpc
+    arch_libdir=ppc64
     firmware="$testdir/boot_rom.bin"
     if [ "$endian" != "little" ] && [ "$endian" != "big" ]; then
         echo "You must provide endianness (big or little)!"
@@ -346,6 +348,7 @@ elif [ "$arch" = "riscv32" ] || [ "$arch" = "riscv64" ]; then
     arch_libdir=riscv
 elif [ "$arch" = "s390x" ]; then
     testdir=s390x
+    arch_libdir=s390x
 else
     echo "arch $arch is not supported!"
     arch=
@@ -355,6 +358,10 @@ if [ ! -d "$srcdir/$testdir" ]; then
     echo "$srcdir/$testdir does not exist!"
     exit 1
 fi
+if [ ! -d "$srcdir/lib/$arch_libdir" ]; then
+    echo "$srcdir/lib/$arch_libdir does not exist!"
+    exit 1
+fi
 
 if [ "$efi" = "y" ] && [ -f "$srcdir/$testdir/efi/run" ]; then
     ln -fs "$srcdir/$testdir/efi/run" $testdir-run
@@ -417,10 +424,11 @@ fi
 # link lib/asm for the architecture
 rm -f lib/asm
 asm="asm-generic"
-if [ -d "$srcdir/lib/$arch/asm" ]; then
-	asm="$srcdir/lib/$arch/asm"
-elif [ -d "$srcdir/lib/$testdir/asm" ]; then
-	asm="$srcdir/lib/$testdir/asm"
+if [ -d "$srcdir/lib/$arch_libdir/asm" ]; then
+    asm="$srcdir/lib/$arch_libdir/asm"
+else
+    echo "$srcdir/lib/$arch_libdir/asm does not exist"
+    exit 1
 fi
 mkdir -p lib
 ln -sf "$asm" lib/asm
-- 
2.42.0