footprint.sh: improve printed output
diff --git a/scripts/footprint.sh b/scripts/footprint.sh
index a11844f..48cedd8 100755
--- a/scripts/footprint.sh
+++ b/scripts/footprint.sh
@@ -6,6 +6,8 @@
if [ -r $CONFIG_H ]; then :; else
echo "$CONFIG_H not found" >&2
+ echo "This script needs to be run from the root of" >&2
+ echo "a git checkout or uncompressed tarball" >&2
exit 1
fi
@@ -14,15 +16,33 @@
exit 1
fi
+if which arm-none-eabi-gcc >/dev/null 2>&1; then :; else
+ echo "You need the ARM-GCC toolchain in your path" >&2
+ echo "See https://launchpad.net/gcc-arm-embedded/" >&2
+ exit 1
+fi
+
+ARMGCC_FLAGS='-Os -march=armv7-m -mthumb'
+OUTFILE='00-footprint-summary.txt'
+
+log()
+{
+ echo "$@"
+ echo "$@" >> "$OUTFILE"
+}
+
doit()
{
NAME="$1"
FILE="$2"
- echo "$NAME:"
+ log ""
+ log "$NAME ($FILE):"
cp $CONFIG_H ${CONFIG_H}.bak
- cp "$FILE" include/mbedtls/config.h
+ if [ "$FILE" != $CONFIG_H ]; then
+ cp "$FILE" $CONFIG_H
+ fi
{
scripts/config.pl unset MBEDTLS_NET_C || true
@@ -31,22 +51,44 @@
} >/dev/null 2>&1
CC=arm-none-eabi-gcc AR=arm-none-eabi-ar LD=arm-none-eabi-ld \
- CFLAGS='-Wa,--noexecstack -Os -march=armv7-m -mthumb' \
- make clean lib >/dev/null
+ CFLAGS="$ARMGCC_FLAGS" make clean lib >/dev/null
OUT="size-${NAME}.txt"
arm-none-eabi-size -t library/libmbed*.a > "$OUT"
- head -n1 "$OUT"
- tail -n1 "$OUT"
+ log "$( head -n1 "$OUT" )"
+ log "$( tail -n1 "$OUT" )"
cp ${CONFIG_H}.bak $CONFIG_H
}
+# truncate the file just this time
+echo "(generated by $0)" > "$OUTFILE"
+echo "" >> "$OUTFILE"
+
+log "Footprint of default configurations (minus net.c, timing.c, fs_io)"
+log "for bare-metal ARM Cortex-M3/M4 microcontrollers."
+
+VERSION_H="include/mbedtls/version.h"
+MBEDTLS_VERSION=$( sed -n 's/.*VERSION_STRING *"\(.*\)"/\1/p' $VERSION_H )
+if git rev-parse HEAD >/dev/null; then
+ GIT_HEAD=$( git rev-parse HEAD | head -c 10 )
+ GIT_VERSION=" ($GIT_HEAD)"
+else
+ GIT_VERSION=""
+fi
+
+log ""
+log "mbed TLS $MBEDTLS_VERSION$GIT_VERSION"
+log "$( arm-none-eabi-gcc --version | head -n1 )"
+log "CFLAGS=$ARMGCC_FLAGS"
+
# creates the yotta config
yotta/create-module.sh >/dev/null
-doit default include/mbedtls/config.h.bak
+doit default include/mbedtls/config.h
doit yotta yotta/module/mbedtls/config.h
doit thread configs/config-thread.h
-doit ecc configs/config-suite-b.h
+doit suite-b configs/config-suite-b.h
doit psk configs/config-ccm-psk-tls1_2.h
+
+zip mbedtls-footprint.zip "$OUTFILE" size-*.txt >/dev/null