igrr commented on a change in pull request #437: Support to run NuttX on ESP32
QEMU
URL: https://github.com/apache/incubator-nuttx/pull/437#discussion_r388416984
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File path: tools/Makefile.unix
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@@ -501,6 +501,23 @@ ifeq ($(CONFIG_UBOOT_UIMAGE),y)
cp -f uImage /tftpboot/uImage; \
fi
endif
+ifeq ($(CONFIG_ESP32_BINARY),y)
+ @echo "MKIMAGE: ESP32 binary"
+ $(Q) if ! esptool.py version | grep "v2[.]"; then \
Review comment:
Loading an ELF file directly should be possible, provided that the ELF file
includes the necessary CPU startup code and exception vectors. This doesn't
happen when you build an ESP-IDF application — currently it always relies on
the ROM code to provide the startup code and the exception vectors. However i
think that NuttX includes such an option:
https://github.com/apache/incubator-nuttx/blob/119a38ce10d8be96b8373b5a19145eda231edd93/boards/xtensa/esp32/esp32-core/README.txt#L491-L499
(i haven't tried it myself).
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