Device Debugging Toolset

Prebuilt binary-analysis and debugging tools for the Miyoo Mini+, which can be downloaded from the main MMP repository.
The bundle targets the device's ABI used by the steward-fu's toolchain: ARMv7-A, hard-float armhf, and glibc 2.28.

What's Included

Binary	Version	Linkage	Use Cases
addr2line	binutils 2.32	dynamic glibc	Map addresses to source lines with DEBUG info.
nm	binutils 2.32	dynamic glibc	List symbols in binaries and object files.
objdump	binutils 2.32	dynamic glibc	Disassemble code and inspect relocations.
readelf	binutils 2.32	dynamic glibc	Inspect ELF headers, sections, and dependencies.
file	5.39	dynamic glibc	Identify file types using MAGIC <magic.mgc>.
gdb	8.3.1	dynamic glibc	Debug programs directly on the device.
gdbserver	8.3.1	static	Let host's GDB debug a program on the device.
strace	5.10	static	Trace a process's system calls.
ldd	Shell script	--	Show shared library dependencies.

Dynamic tools use the device's existing glibc loader and libraries; including /lib/ld-linux-armhf.so.3, /lib/libc.so.6; and, where needed, /lib/libdl.so.2 or /lib/libm.so.6.
gdb has libstdc++ and libgcc linked in, so those do not need to be installed separately on the Miyoo Mini+.

Using the Prebuilt Bundle

# SSH connection details for your Miyoo Mini+ device will depend on your firmware and LAN setup:
ipAddress="192.168.1.128"
user="root"
remoteDirectory="/mnt/SDCARD/.tmp_update/bin"

# Read the SSH password:
read -r -s -p "SSH password: " SSHPASS
export SSHPASS
printf '\n'

# Copy the contents of the 'binaries' directory to the '$remoteDirectory'.
# '-O' forces the legacy SCP protocol for SSH servers without SFTP support:
sshpass -e scp \
    -r \
    -o StrictHostKeyChecking=accept-new \
    -o MACs=hmac-sha1 \
    binaries/* \
    "$user@$ipAddress:$remoteDirectory/"

unset SSHPASS

Note

Remember to replace the ipAddress, user, and remoteDirectory variables with values that match your firmware and LAN setup.

Optional Steps

After copying the binaries over, you can SSH into the device and add the tools to its PATH:

export PATH="/mnt/SDCARD/.tmp_update/bin:$PATH"
# 'MAGIC' lets 'file' find 'magic.mgc' without passing '--magic-file' each time:
export MAGIC="/mnt/SDCARD/.tmp_update/bin/magic.mgc"

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For remote debugging, start gdbserver on the device and connect to it from GDB on the host:

/mnt/SDCARD/.tmp_update/bin/gdbserver :1234 /mnt/SDCARD/path/To/Program

target remote 192.168.1.128:1234

A full on-device gdb is also included, but the gdbserver workflow is generally more responsive and lighter on the Miyoo Mini+.

Rebuild From Source

Run build.sh from the main MMP repository when you need to regenerate binaries/.

./build.sh

The script downloads source archives into src/downloads/, extracts them under src/, cross-compiles the tools, and stages the result in binaries/.
Source archives and extracted build trees are regenerated as needed, and are not kept as repository source files.

The source versions are fixed in build.sh:

Tool(s)	Source package	Version
readelf, objdump, nm, addr2line	binutils	2.32
file, magic.mgc	file	5.39
gdb, gdbserver	gdb	8.3.1
ldd	Shell script	--
strace	strace	5.10

Maintainer Notes

• file builds a same-version native file first, because the ARM binary cannot run on the build host while compiling magic.mgc.
• gdb is built without TUI, curses, expat, Python, or Guile to avoid extra on-device dependencies.
• strace links statically with LIBS="-lrt -lpthread"; glibc 2.28 keeps the needed pthread symbols outside librt.
• MAKEINFO=true skips the optional documentation build step.

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