Merge pull request #5 from sifive/elf2bin

elf2bin: New program

Makefile.am

@@ -1,7 +1,7 @@
 # Copyright 2018 SiFive, Inc
 # SPDX-License-Identifier: Apache-2.0
 
-bin_SCRIPTS = bin2hex elf2hex
+bin_SCRIPTS = bin2hex elf2hex elf2bin
 
 bin2hex: freedom-bin2hex.sh
 	cat $< | sed 's:[@]PYTHON[@]:$(PYTHON):g' | sed 's:[@]pythondir[@]:$(pythondir):g' > $@
@@ -11,11 +11,16 @@ elf2hex: freedom-elf2hex.sh
 	cat $< | sed 's:[@]OBJCOPY[@]:$(OBJCOPY):g' | sed 's:[@]BIN2HEX[@]:$(bindir)/$(target)-bin2hex:g' > $@
 	chmod +x $@
 
+elf2bin: freedom-elf2bin.sh
+	cat $< | sed 's:[@]OBJCOPY[@]:$(OBJCOPY):g' | sed 's:[@]BIN2HEX[@]:$(bindir)/$(target)-bin2hex:g' > $@
+	chmod +x $@
+
 python_PYTHON = freedom-bin2hex.py
 
 EXTRA_DIST  = freedom-bin2hex.sh
 EXTRA_DIST += freedom-elf2hex.sh
+EXTRA_DIST += freedom-elf2bin.sh
 EXTRA_DIST += README.md
 
 clean-local:
-	-rm -f bin2hex elf2hex
+	-rm -f bin2hex elf2hex elf2bin

freedom-elf2bin.sh

@@ -0,0 +1,37 @@
+#!/bin/bash
+
+unset input
+unset output
+objcopy="@OBJCOPY@"
+while [[ "$1" != "" ]]
+do
+    case "$1" in
+    -h | --help) echo "$0 [-h, --help] --input INPUT.ELF [--output OUTPUT.HEX]" >&2; exit 0;;
+    --input) input="$2"; shift 2;;
+    --output) output="$2"; shift 2;;
+    *) echo "$0: unknown argument $1">&2; exit 1;;
+    esac
+done
+
+if [[ "$input" == "" ]]
+then
+    echo "$0 [-h, --help] --input INPUT.ELF [--output OUTPUT.HEX]" >&2
+    exit 1
+fi
+
+if [[ "$objcopy" == "" ]]
+then
+    echo "$0: could not find objcopy"
+    exit 1
+fi
+
+temp="$(mktemp -d)"
+trap "rm -rf $temp" EXIT
+
+"$objcopy" "$input" -O binary "$temp"/output.bin
+if [[ "$output" == "" ]]
+then
+    cat "$temp"/output.bin
+else
+    cp "$temp"/output.bin "$output"
+fi