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# Ghidra script to extract .fwimage section from GSP firmware ELF
# Usage: analyzeHeadless ... -postScript extract_fwimage.py
import sys
import os
# Get the current program
program = getCurrentProgram()
# Get the .fwimage section
fwimage_section = program.getSection(".fwimage")
if not fwimage_section:
print("No .fwimage section found")
sys.exit(1)
print(f"Found .fwimage section: {fwimage_section.getStart()} - {fwimage_section.getEnd()}")
print(f"Size: {fwimage_section.getLength()} bytes")
# Get the data from the section
data = getBytes(fwimage_section.getStart(), fwimage_section.getLength())
# Save to file
output_dir = "/home/rmcore/Git/integdev_gpu_drv/open-iov/firmware/570-GSP"
os.makedirs(output_dir, exist_ok=True)
fwimage_path = os.path.join(output_dir, "gsp-570.144.fwimage.bin")
with open(fwimage_path, "wb") as f:
f.write(data)
print(f"Saved .fwimage to {fwimage_path}")
# Also extract .fwversion
fwversion_section = program.getSection(".fwversion")
if fwversion_section:
version_data = getBytes(fwversion_section.getStart(), fwversion_section.getLength())
version_str = version_data.decode('ascii').strip('\x00')
print(f"GSP Firmware Version: {version_str}")
with open(os.path.join(output_dir, "gsp_version.txt"), "w") as f:
f.write(version_str)
# Extract signatures
for i in range(3):
sig_section = program.getSection(f".fwsignature{i}")
if sig_section:
sig_data = getBytes(sig_section.getStart(), sig_section.getLength())
sig_path = os.path.join(output_dir, f"gsp-570.144.fwsignature{i}.bin")
with open(sig_path, "wb") as f:
f.write(sig_data)
print(f"Saved signature {i} to {sig_path} ({len(sig_data)} bytes)")
# Create a new Ghidra project for the .fwimage binary
print("Creating Ghidra project for .fwimage binary...")
# We'll do this via a separate script call
print("Done extracting sections.")
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