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GP-2748 added calling convention for elf entry point

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This commit is contained in:
James
2023-04-03 15:35:27 +00:00
parent c324e0cd48
commit 6258dd9eee
6 changed files with 140 additions and 27 deletions
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18
Ghidra/Processors/ARM/data/languages/ARM.cspec
View File

@@ -117,6 +117,24 @@
</killedbycall>
</prototype>
</default_proto>
<prototype name="processEntry" extrapop="0" stackshift="0">
<input pointermax="4">
<pentry minsize="1" maxsize="4">
<register name="r0"/>
</pentry>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="0" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="1" maxsize="4">
<register name="r0"/>
</pentry>
</output>
<unaffected>
<register name="sp"/>
</unaffected>
</prototype>
<callfixup name="switch8_r3">
<target name="switch8_r3"/>

19
Ghidra/Processors/MIPS/data/languages/mips32be.cspec
View File

@@ -84,5 +84,24 @@
</localrange>
</prototype>
</default_proto>
<prototype name="processEntry" extrapop="0" stackshift="0">
<input pointermax="4">
<pentry minsize="1" maxsize="4">
<register name="v0"/>
</pentry>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="0" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="1" maxsize="4">
<register name="v0"/>
</pentry>
</output>
<unaffected>
<register name="sp"/>
</unaffected>
</prototype>
</compiler_spec>

18
Ghidra/Processors/MIPS/data/languages/mips32le.cspec
View File

@@ -84,5 +84,23 @@
</localrange>
</prototype>
</default_proto>
<prototype name="processEntry" extrapop="0" stackshift="0">
<input pointermax="4">
<pentry minsize="1" maxsize="4">
<register name="v0"/>
</pentry>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="0" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="1" maxsize="4">
<register name="v0"/>
</pentry>
</output>
<unaffected>
<register name="sp"/>
</unaffected>
</prototype>
</compiler_spec>

24
Ghidra/Processors/x86/data/languages/x86-64-gcc.cspec
View File

@@ -215,4 +215,28 @@
<register name="R11"/>
</killedbycall>
</prototype>
<prototype name="processEntry" extrapop="0" stackshift="0">
<input pointermax="8">
<pentry minsize="1" maxsize="8">
<register name="RDX"/>
</pentry>
<pentry minsize="1" maxsize="500" align="8">
<addr offset="0" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="1" maxsize="8">
<register name="RAX"/>
</pentry>
</output>
<unaffected>
<register name="RSP"/>
</unaffected>
<!-- Functions with this prototype don't have a return address. But, if we don't specify one, this prototype will
use the default, which is to have the return address on the stack. That conflicts with how this prototype actually
uses the stack, so we set a fake return address at a RBP, which is unspecified at process entry -->
<returnaddress>
<register name="RBP"/>
</returnaddress>
</prototype>
</compiler_spec>

25
Ghidra/Processors/x86/data/languages/x86gcc.cspec
View File

@@ -286,6 +286,31 @@
<register name="EAX"/>
</killedbycall>
</prototype>
<prototype name="processEntry" extrapop="0" stackshift="0">
<input pointermax="4">
<pentry minsize="1" maxsize="4">
<register name="EDX"/>
</pentry>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="0" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
</output>
<unaffected>
<register name="ESP"/>
</unaffected>
<!-- Functions with this prototype don't have a return address. But, if we don't specify one, this prototype will
use the default, which is to have the return address on the stack. That conflicts with how this prototype actually
uses the stack, so we set a fake return address at a EBP, which is unspecified at process entry -->
<returnaddress>
<register name="EBP"/>
</returnaddress>
</prototype>
<resolveprototype name="__cdecl/__regparm">
<model name="__cdecl"/> <!-- The default case -->