[kvm-unit-tests PATCH v1 2/5] configure: Display the default processor for arm and arm64

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The help text for the --processor option displays the architecture name as
the default processor type. But the default for arm is cortex-a15, and for
arm64 is cortex-a57. Teach configure to display the correct default
processor type for these two architectures.

Signed-off-by: Alexandru Elisei <alexandru.elisei@xxxxxxx>
---
 configure | 30 ++++++++++++++++++++++--------
 1 file changed, 22 insertions(+), 8 deletions(-)

diff --git a/configure b/configure
index 5b0a2d7f39c0..138840c3f76d 100755
--- a/configure
+++ b/configure
@@ -5,6 +5,24 @@ if [ -z "${BASH_VERSINFO[0]}" ] || [ "${BASH_VERSINFO[0]}" -lt 4 ] ; then
     exit 1
 fi
 
+function get_default_processor()
+{
+    local arch="$1"
+
+    case "$arch" in
+    "arm")
+        default_processor="cortex-a15"
+        ;;
+    "arm64" | "aarch64")
+        default_processor="cortex-a57"
+        ;;
+    *)
+        default_processor=$arch
+    esac
+
+    echo "$default_processor"
+}
+
 srcdir=$(cd "$(dirname "$0")"; pwd)
 prefix=/usr/local
 cc=gcc
@@ -33,6 +51,7 @@ page_size=
 earlycon=
 efi=
 efi_direct=
+default_processor=$(get_default_processor $arch)
 
 # Enable -Werror by default for git repositories only (i.e. developer builds)
 if [ -e "$srcdir"/.git ]; then
@@ -48,7 +67,7 @@ usage() {
 	Options include:
 	    --arch=ARCH            architecture to compile for ($arch). ARCH can be one of:
 	                           arm, arm64/aarch64, i386, ppc64, riscv32, riscv64, s390x, x86_64
-	    --processor=PROCESSOR  processor to compile for ($arch)
+	    --processor=PROCESSOR  processor to compile for ($default_processor)
 	    --target=TARGET        target platform that the tests will be running on (qemu or
 	                           kvmtool, default is qemu) (arm/arm64 only)
 	    --cross-prefix=PREFIX  cross compiler prefix
@@ -283,13 +302,8 @@ else
     fi
 fi
 
-[ -z "$processor" ] && processor="$arch"
-
-if [ "$processor" = "arm64" ]; then
-    processor="cortex-a57"
-elif [ "$processor" = "arm" ]; then
-    processor="cortex-a15"
-fi
+# $arch will have changed when cross-compiling.
+[ -z "$processor" ] && processor=$(get_default_processor $arch)
 
 if [ "$arch" = "i386" ] || [ "$arch" = "x86_64" ]; then
     testdir=x86
-- 
2.47.1





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