NationalSecurityAgency/ghidra · error · IllegalArgumentException

Given platform has been deleted

Error message

Given platform has been deleted

What it means

After the manager-identity check, assertMine tests dbPlatform.isDeleted(); if true it throws IllegalArgumentException("Given platform has been deleted"). The platform row was removed (via deleteGuestPlatform) but a stale reference is still being used.

Source

Thrown at Ghidra/Debug/Framework-TraceModeling/src/main/java/ghidra/trace/database/guest/DBTracePlatformManager.java:383

	@Override
	public Collection<TraceGuestPlatform> getGuestPlatforms() {
		return platformView;
	}

	@Internal
	public InternalTracePlatform assertMine(TracePlatform platform) {
		if (platform == hostPlatform) {
			return hostPlatform;
		}
		if (!(platform instanceof DBTraceGuestPlatform)) {
			throw new IllegalArgumentException("Given platform does not belong to this trace");
		}
		DBTraceGuestPlatform dbPlatform = (DBTraceGuestPlatform) platform;
		if (dbPlatform.manager != this) {
			throw new IllegalArgumentException("Given platform does not belong to this trace");
		}
		if (dbPlatform.isDeleted()) {
			throw new IllegalArgumentException("Given platform has been deleted");
		}
		return dbPlatform;
	}

	protected Address computeNextRegisterMin() {
		AddressRange hostRegsRange = hostPlatform.getRegistersRange();
		Address next = hostRegsRange == null
				? hostPlatform.getAddressFactory().getRegisterSpace().getAddress(0)
				: hostRegsRange.getMaxAddress().add(1);
		for (DBTraceGuestPlatform guest : platformStore.asMap().values()) {
			Address candidateNext = guest.computeNextRegisterMin();
			if (candidateNext != null && next.compareTo(candidateNext) < 0) {
				next = candidateNext;
			}
		}
		return next;
	}
}

View on GitHub (pinned to d5f144c24d)

Solutions

1. Discard platform references on PLATFORM_DELETED change events.
2. Check platform.isDeleted() (liveness) before calling manager APIs.
3. Re-fetch the platform from the manager; a deleted one will no longer resolve.

Example fix

// before
mgr.someOp(stalePlatform);

// after
if (((DBTraceGuestPlatform) stalePlatform).isDeleted()) {
    return; // or re-resolve
}
mgr.someOp(stalePlatform);

if (((DBTraceGuestPlatform) platform).isDeleted()) {
    // discard reference; do not call manager APIs on it
}

static boolean isLivePlatform(TracePlatform p) {
    return !(p instanceof DBTraceGuestPlatform g && g.isDeleted());
}

When it happens

Trigger: Using a TraceGuestPlatform handle after deleteGuestPlatform was called on it; UI components or caches still holding the reference after deletion.

Common situations: Emulation or views retaining platform refs past a PLATFORM_DELETED event; delete-then-use sequences; caches not invalidated on deletion.

Related errors

• Trace is not opened in this tool
• Inferiors[{infnum}] does not exist
• Emulation requires a Sleigh language
• This mapper cannot handle Harvard guests
• Cannot emulate a trace unless it's opened in the tool.

AI-assisted analysis of NationalSecurityAgency/ghidra@d5f144c24d (2026-08-14). Data as JSON: /api/errors/a569ed0972fd6af6. Report an issue: GitHub.