[kvm-unit-tests RFC PATCH 2/6] configure: Make arch_libdir a first-class entity

[Chinmay Rath <rathc@linux.ibm.com>]

From: 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.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Chinmay Rath <rathc@linux.ibm.com>
---
 Makefile  |  2 +-
 configure | 20 ++++++++++++--------
 2 files changed, 13 insertions(+), 9 deletions(-)

diff --git a/Makefile b/Makefile
index 42ef5826..8e002043 100644
--- a/Makefile
+++ b/Makefile
@@ -12,7 +12,7 @@ vpath %.s $(SRCDIR)
 vpath %.S $(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 := $(PREFIX)/share/kvm-unit-tests/
diff --git a/configure b/configure
index 6d549d1e..aeb5570c 100755
--- a/configure
+++ b/configure
@@ -274,7 +274,6 @@ fi
 arch_name=$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"
@@ -373,8 +372,10 @@ 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
         : "${uart_early_addr:=0x9000000}"
     elif [ "$target" = "kvmtool" ]; then
@@ -385,6 +386,7 @@ 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)!"
@@ -400,6 +402,7 @@ elif [ "$arch" = "riscv32" ] || [ "$arch" = "riscv64" ]; then
     fi
 elif [ "$arch" = "s390x" ]; then
     testdir=s390x
+    arch_libdir=s390x
 else
     echo "arch $arch is not supported!"
     arch=
@@ -409,6 +412,10 @@ if [ ! -d "$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" $testdir-run
@@ -471,15 +478,12 @@ fi
 # link lib/asm for the architecture
 rm -f lib/asm
 asm="asm-generic"
-if [ -d "$srcdir/lib/$arch/asm" ]; then
-	asm="$srcdir/lib/$arch/asm"
-	mkdir -p "lib/$arch"
-elif [ -d "$srcdir/lib/$arch_libdir/asm" ]; then
+if [ -d "$srcdir/lib/$arch_libdir/asm" ]; then
 	asm="$srcdir/lib/$arch_libdir/asm"
 	mkdir -p "lib/$arch_libdir"
-elif [ -d "$srcdir/lib/$testdir/asm" ]; then
-	asm="$srcdir/lib/$testdir/asm"
-	mkdir -p "lib/$testdir"
+else
+	echo "$srcdir/lib/$arch_libdir/asm does not exist"
+	exit 1
 fi
 ln -sf "$asm" lib/asm
 mkdir -p lib/generated lib/libfdt
-- 
2.53.0