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ghidra/Ghidra/Processors/x86/data/languages/x86gcc.cspec
ghintern 69dd166c3a GP-5183 Fixes to x86 and x64 cspecs
2025-02-04 21:37:27 +00:00

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<?xml version="1.0" encoding="UTF-8"?>
<compiler_spec>
<data_organization>
<machine_alignment value="2" />
<default_alignment value="1" />
<default_pointer_alignment value="4" />
<pointer_size value="4" />
<wchar_size value="4" />
<short_size value="2" />
<integer_size value="4" />
<long_size value="4" />
<long_long_size value="8" />
<float_size value="4" />
<double_size value="8" />
<long_double_size value="10" /> <!-- aligned-length=12 -->
<size_alignment_map>
<entry size="1" alignment="1" />
<entry size="2" alignment="2" />
<entry size="4" alignment="4" />
<entry size="8" alignment="4" />
<entry size="16" alignment="16" />
</size_alignment_map>
</data_organization>
<global>
<range space="ram"/>
<range space="OTHER"/>
<register name="MXCSR"/>
</global>
<stackpointer register="ESP" space="ram"/>
<returnaddress>
<varnode space="stack" offset="0" size="4"/>
</returnaddress>
<default_proto>
<prototype name="__cdecl" extrapop="4" stackshift="4">
<input>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="4" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="4" maxsize="10" metatype="float" extension="float">
<register name="ST0"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="5" maxsize="8">
<addr space="join" piece1="EDX" piece2="EAX"/>
</pentry>
<!-- Any struct type is returned by pointer, regardless of size -->
<rule>
<datatype name="struct"/>
<hidden_return/>
</rule>
</output>
<unaffected>
<register name="ESP"/>
<register name="EBP"/>
<register name="ESI"/>
<register name="EDI"/>
<register name="EBX"/>
</unaffected>
<killedbycall>
<register name="ECX"/>
<register name="EDX"/>
<register name="ST0"/>
<register name="ST1"/>
</killedbycall>
<likelytrash>
<register name="EAX"/>
</likelytrash>
</prototype>
</default_proto>
<prototype name="__cdeclf" extrapop="4" stackshift="4">
<input>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="4" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="1" maxsize="10">
<register name="ST0"/>
</pentry>
</output>
<unaffected>
<register name="ESP"/>
<register name="EBP"/>
<register name="ESI"/>
<register name="EDI"/>
<register name="EBX"/>
</unaffected>
<killedbycall>
<register name="ECX"/>
<register name="EDX"/>
</killedbycall>
<likelytrash>
<register name="EAX"/>
</likelytrash>
</prototype>
<prototype name="__thiscall" extrapop="4" stackshift="4">
<input>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="4" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="4" maxsize="10" metatype="float" extension="float">
<register name="ST0"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="5" maxsize="8">
<addr space="join" piece1="EDX" piece2="EAX"/>
</pentry>
</output>
<unaffected>
<register name="ESP"/>
<register name="EBP"/>
<register name="ESI"/>
<register name="EDI"/>
<register name="EBX"/>
</unaffected>
<killedbycall>
<register name="ECX"/>
<register name="EDX"/>
<register name="ST0"/>
<register name="ST1"/>
</killedbycall>
<likelytrash>
<register name="EAX"/>
</likelytrash>
</prototype>
<prototype name="__regparm3" extrapop="4" stackshift="4"> <!-- Used particularly by linux kernel -->
<input>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EDX"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="ECX"/>
</pentry>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="4" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="4" maxsize="10" metatype="float" extension="float">
<register name="ST0"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="5" maxsize="8">
<addr space="join" piece1="EDX" piece2="EAX"/>
</pentry>
</output>
<unaffected>
<register name="ESP"/>
<register name="EBP"/>
<register name="ESI"/>
<register name="EDI"/>
<register name="EBX"/>
</unaffected>
<killedbycall>
<register name="ECX"/>
<register name="EDX"/>
<register name="ST0"/>
<register name="ST1"/>
</killedbycall>
<likelytrash>
<register name="EAX"/>
</likelytrash>
</prototype>
<prototype name="__regparm2" extrapop="4" stackshift="4">
<input>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EDX"/>
</pentry>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="4" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="4" maxsize="10" metatype="float" extension="float">
<register name="ST0"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="5" maxsize="8">
<addr space="join" piece1="EDX" piece2="EAX"/>
</pentry>
</output>
<unaffected>
<register name="ESP"/>
<register name="EBP"/>
<register name="ESI"/>
<register name="EDI"/>
<register name="EBX"/>
</unaffected>
<killedbycall>
<register name="ECX"/>
<register name="EDX"/>
<register name="ST0"/>
<register name="ST1"/>
</killedbycall>
<likelytrash>
<register name="EAX"/>
</likelytrash>
</prototype>
<prototype name="__regparm1" extrapop="4" stackshift="4">
<input>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="1" maxsize="500" align="4">
<addr offset="4" space="stack"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="4" maxsize="10" metatype="float" extension="float">
<register name="ST0"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
<pentry minsize="5" maxsize="8">
<addr space="join" piece1="EDX" piece2="EAX"/>
</pentry>
</output>
<unaffected>
<register name="ESP"/>
<register name="EBP"/>
<register name="ESI"/>
<register name="EDI"/>
<register name="EBX"/>
</unaffected>
<killedbycall>
<register name="ECX"/>
<register name="EDX"/>
<register name="ST0"/>
<register name="ST1"/>
</killedbycall>
<likelytrash>
<register name="EAX"/>
</likelytrash>
</prototype>
<prototype name="syscall" extrapop="4" stackshift="4">
<input>
<pentry minsize="1" maxsize="4">
<register name="EBX"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="ECX"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EDX"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="ESI"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EDI"/>
</pentry>
<pentry minsize="1" maxsize="4">
<register name="EBP"/>
</pentry>
</input>
<output killedbycall="true">
<pentry minsize="1" maxsize="4">
<register name="EAX"/>
</pentry>
</output>
<unaffected>
<register name="EBX"/>
<register name="ECX"/>
<register name="EDX"/>
<register name="EBP"/>
<register name="EDI"/>
<register name="ESI"/>
<register name="ESP"/>
<register name="DF"/>
</unaffected>
<killedbycall>
<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 -->
<model name="__regparm3"/>
<model name="__regparm2"/>
<model name="__regparm1"/>
</resolveprototype>
<eval_current_prototype name="__cdecl/__regparm"/>
<callfixup name="get_pc_thunk_ax">
<target name="__i686.get_pc_thunk.ax"/>
<target name="__x86.get_pc_thunk.ax"/>
<pcode>
<body><![CDATA[
EAX = * ESP;
ESP = ESP + 4;
]]></body>
</pcode>
</callfixup>
<callfixup name="get_pc_thunk.bp">
<target name="__i686.get_pc_thunk.bp"/>
<target name="__x86.get_pc_thunk.bp"/>
<pcode>
<body><![CDATA[
EBP = * ESP;
ESP = ESP + 4;
]]></body>
</pcode>
</callfixup>
<callfixup name="get_pc_thunk_bx">
<target name="__i686.get_pc_thunk.bx"/>
<target name="__x86.get_pc_thunk.bx"/>
<pcode>
<body><![CDATA[
EBX = * ESP;
ESP = ESP + 4;
]]></body>
</pcode>
</callfixup>
<callfixup name="get_pc_thunk_cx">
<target name="__i686.get_pc_thunk.cx"/>
<target name="__x86.get_pc_thunk.cx"/>
<pcode>
<body><![CDATA[
ECX = * ESP;
ESP = ESP + 4;
]]></body>
</pcode>
</callfixup>
<callfixup name="get_pc_thunk_dx">
<target name="__i686.get_pc_thunk.dx"/>
<target name="__x86.get_pc_thunk.dx"/>
<pcode>
<body><![CDATA[
EDX = * ESP;
ESP = ESP + 4;
]]></body>
</pcode>
</callfixup>
<callfixup name="get_pc_thunk_si">
<target name="__i686.get_pc_thunk.si"/>
<target name="__x86.get_pc_thunk.si"/>
<pcode>
<body><![CDATA[
ESI = * ESP;
ESP = ESP + 4;
]]></body>
</pcode>
</callfixup>
<callfixup name="x86_return_thunk">
<target name="__x86_return_thunk"/>
<pcode>
<body><![CDATA[
EIP = *:4 ESP;
ESP = ESP + 4;
return [EIP];
]]></body>
</pcode>
</callfixup>
<callfixup name="fentry">
<target name="__fentry__"/>
<pcode>
<body><![CDATA[
temp:1 = 0;
]]></body>
</pcode>
</callfixup>
<callfixup name="mcount">
<target name="mcount"/>
<pcode>
<body><![CDATA[
temp:1 = 0;
]]></body>
</pcode>
</callfixup>
<callfixup name="x86_indirect_thunk_ebp">
<target name="__x86_indirect_thunk_ebp"/>
<pcode>
<body><![CDATA[
call [EBP];
]]></body>
</pcode>
</callfixup>
<callfixup name="x86_indirect_thunk_eax">
<target name="__x86_indirect_thunk_eax"/>
<pcode>
<body><![CDATA[
call [EAX];
]]></body>
</pcode>
</callfixup>
<callfixup name="x86_indirect_thunk_ebx">
<target name="__x86_indirect_thunk_ebx"/>
<pcode>
<body><![CDATA[
call [EBX];
]]></body>
</pcode>
</callfixup>
<callfixup name="x86_indirect_thunk_ecx">
<target name="__x86_indirect_thunk_ecx"/>
<pcode>
<body><![CDATA[
call [ECX];
]]></body>
</pcode>
</callfixup>
<callfixup name="x86_indirect_thunk_edx">
<target name="__x86_indirect_thunk_edx"/>
<pcode>
<body><![CDATA[
call [EDX];
]]></body>
</pcode>
</callfixup>
</compiler_spec>
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