Refresh of ESP32 flash tool libraries

nkolban · nkolban · commit 7a33f4bf8ade · 2018-04-17T22:54:09.000-05:00
diff --git a/tools/esptool_libs/nodejs/README.md b/tools/esptool_libs/nodejs/README.md
@@ -0,0 +1,3 @@
+# NodeJS ESP Tools
+
+The `build.js` tool is used to take the `stub_flasher_32.elf` and break it apart into the separate files that need to be individually pushed to ESP32 RAM for execution.
diff --git a/tools/esptool_libs/nodejs/build.sh b/tools/esptool_libs/nodejs/build.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+# Extract the text and data sections to their own files.
+xtensa-esp32-elf-objcopy \
+  --dump-section .text=text.dat \
+  --dump-section .data=data.dat \
+  stub_flasher_32.elf
+
+# Parse out the text load address, the data load address and the entry point from the ELF.
+text_address=`xtensa-esp32-elf-objdump --section-headers --wide --section=.text stub_flasher_32.elf | sed -n '$s/^\s*[[:alnum:]]*\s*\S*\s*[[:alnum:]]*\s*[[:alnum:]]*\s*\([[:alnum:]]*\).*/\1/p'`
+#echo "Text address: 0x${text_address}"
+data_address=`xtensa-esp32-elf-objdump --section-headers --wide --section=.data stub_flasher_32.elf | sed -n '$s/^\s*[[:alnum:]]*\s*\S*\s*[[:alnum:]]*\s*[[:alnum:]]*\s*\([[:alnum:]]*\).*/\1/p'`
+#echo "Data address: 0x${data_address}"
+entry_point=`xtensa-esp32-elf-objdump --wide --file-headers stub_flasher_32.elf | sed -n '/start address/s/start address 0x\([[:alnum:]]\)/\1/p'`
+#echo "Entry point:  0x${entry_point}"
+
+echo "{"
+echo "  \"textAddress\": \"${text_address}\","
+echo "  \"dataAddress\": \"${data_address}\","
+echo "  \"entryPoint\":  \"${entry_point}\","
+echo "  \"textData\":    \"$(base64 --wrap=0 text.dat)\","
+echo "  \"dataData\":    \"$(base64 --wrap=0 data.dat)\""
+echo "}"
+
+# Remove the temporary text and data files.
+#rm text.dat data.dat
diff --git a/tools/esptool_libs/nodejs/espjs.js b/tools/esptool_libs/nodejs/espjs.js

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+# NodeJS ESP Tools`
	`2`	`+`
	`3`	+The `build.js` tool is used to take the `stub_flasher_32.elf` and break it apart into the separate files that need to be individually pushed to ESP32 RAM for execution.