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License: Apache License 2.0
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Couldnt import to Ghidra
Hi,
Can you pls give little bit cue on importing stm8 to Ghidra. Current copying to extension folder didnt help me.
Also i couldnt find the language on tool.
Is there any SVD file that you know for stm8s?
Failing to disassemble, help wanted
Hi, I'm trying to decompile a binary using the extension, but it's not disassembling it correctly:
I also disassembled it using naken_util, and it was correctly disassembled:
This is my first time playing around with Ghidra, am I doing something wrong, or is the plugin broken on my Ghidra version, 10.0.4 ?
Could somebody help me?
Thanks!
Task Error: Loading language 'STM8:BE:24:default' - Uncaught Exception: java.lang.RuntimeException
Error occurred when importing stm8 flash bin to Ghidra Project.
org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 1; Content is not allowed in prolog.
java.lang.RuntimeException: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 1; Content is not allowed in prolog.
at ghidra.xml.ThreadedXmlPullParserImpl.checkForException(ThreadedXmlPullParserImpl.java:122)
at ghidra.xml.ThreadedXmlPullParserImpl.waitForNextElement(ThreadedXmlPullParserImpl.java:168)
at ghidra.xml.ThreadedXmlPullParserImpl.hasNext(ThreadedXmlPullParserImpl.java:154)
at ghidra.xml.AbstractXmlPullParser.start(AbstractXmlPullParser.java:90)
at ghidra.app.plugin.processors.sleigh.SleighLanguage.restoreXml(SleighLanguage.java:897)
at ghidra.app.plugin.processors.sleigh.SleighLanguage.readSpecification(SleighLanguage.java:889)
at ghidra.app.plugin.processors.sleigh.SleighLanguage.initialize(SleighLanguage.java:149)
at ghidra.app.plugin.processors.sleigh.SleighLanguage.<init>(SleighLanguage.java:111)
at ghidra.app.plugin.processors.sleigh.SleighLanguageProvider.getNewSleigh(SleighLanguageProvider.java:112)
at ghidra.app.plugin.processors.sleigh.SleighLanguageProvider.getLanguage(SleighLanguageProvider.java:99)
at ghidra.program.util.DefaultLanguageService$LanguageInfo.lambda$getLanguage$0(DefaultLanguageService.java:385)
at ghidra.util.task.TaskBuilder$TaskBuilderTask.run(TaskBuilder.java:306)
at ghidra.util.task.Task.monitoredRun(Task.java:134)
at ghidra.util.task.TaskRunner.lambda$startTaskThread$0(TaskRunner.java:106)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:829)
Caused by: org.xml.sax.SAXParseException; lineNumber: 2; columnNumber: 1; Content is not allowed in prolog.
at java.xml/com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1243)
at java.xml/com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:635)
at ghidra.xml.ThreadedXmlPullParserImpl$ContentHandlerRunnable.run(ThreadedXmlPullParserImpl.java:267)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
... 3 more
---------------------------------------------------
Build Date: 2022-May-21 0030 CEST
Ghidra Version: 10.1.4
Java Home: /usr/lib/jvm/java-11-openjdk
JVM Version: Oracle Corporation 11.0.15
OS: Linux 5.15.45-1-lts amd64
Stack operation and emulation error
The documentation indicates that when calling the CALL operand, only two bytes are added to the stack instead of three
PCH, and the PCL byte of the PCE is ignored.
Is :CALLF [Addr16DW] wrong?
As far as I can read the isa description of the STM8 in the .sinc file the two instructions ":CALLF Addr24" and ":CALLF [Addr16DW]" are defined in a very similar way. But doesn't the ":CALLF [Addr16DW]" need one dereferencing?
I do not have code here which uses this instruction so I cannot check.
FunctionID
Is there any way to create a Ghidra function ID database from the (Cosmic or other) compiler's clib? Are these available somewhere? Too many unknown functions :-)
Error when tracing and emulating the instruction [90 fd] = > CALL (Y)
Error when tracing and emulating the instruction [90 fd] = > CALL (Y)
debugging at the chip level and in the Ghidra program showed that the instruction in the STM8S controller works differently than in the documentation.
How it works
CALL (Y) is equivalent to CALL Y without a request to address a jump by the value of register Y and the same with register X
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