| commit | 888a61bd085d8b031c1b05b22eae51fae1004aba | [log] [tgz] |
|---|---|---|
| author | Havard Skinnemoen <hskinnemoen@google.com> | Wed Jun 24 23:34:27 2020 -0700 |
| committer | Havard Skinnemoen <hskinnemoen@google.com> | Wed Jun 24 23:34:27 2020 -0700 |
| tree | 7504884b7213eb5bce14518fbdc44f76a84e9ab2 | |
| parent | eb9a1c8a4602386193e003d113af919f7d2514ae [diff] |
Fix build with gcc-9 arm-linux-gnueabi toolchain Linux toolchains link dynamically by default, so pass -static. gcc also adds a .note.gnu.build-id to the beginning of the file, which messes up our reset vector when converting to a raw binary file. Passing --build-id=none to the linker gets rid of it. Change-Id: If64eb0fe7298480d5a9c04730088d74b32bcb082
This is not an officially supported Google product.
This is a super simple Boot ROM that is intended to be used as a -bios image for QEMU when emulating an NPCM7xx-based machine.
If you have a 32-bit ARM compiler installed as arm-none-eabi-gcc, simply run make.
If your ARM compiler has a different name, you'll need to override the CROSS_COMPILE prefix, e.g. like this:
make CROSS_COMPILE=arm-linux-gnueabi-
If either case is successful, a npcm7xx_bootrom.bin file will be produced.
The Boot ROM image may be passed to a QEMU system emulator using the -bios option. For example like this:
qemu-system-arm -machine quanta-gsj -nographic \
-bios "${IMAGES}/npcm7xx_bootrom.bin"
-drive file="${IMAGES}/image-bmc,if=mtd,bus=0,unit=0,format=raw,snapshot=on"