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adds patterns to recognize certain x86 endbr as function starts #1531

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Merged
merged 1 commit into from
Jul 6, 2022
Merged

adds patterns to recognize certain x86 endbr as function starts #1531

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3 changes: 2 additions & 1 deletion oasis/x86
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Original file line number Diff line number Diff line change
Expand Up @@ -74,7 +74,8 @@ Library x86_plugin
X86_legacy_fp_lifter,
X86_legacy_bil_register,
X86_legacy_operands
DataFiles: semantics/*.lisp ($datadir/bap/primus/semantics)
DataFiles: semantics/*.lisp ($datadir/bap/primus/semantics),
patterns/*.xml ($datadir/bap/signatures/x86)
XMETAExtraLines: tags="disassembler, lifter, x86, abi"

Library x86_test
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16 changes: 16 additions & 0 deletions plugins/x86/patterns/cet.xml
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@@ -0,0 +1,16 @@
<patternlist>
<pattern>
<data>0xf30f1efa 0x55</data> <!--endbr64; push rbp-->
<funcstart/>
</pattern>

<pattern>
<data>0xf30f1efa 0x53</data> <!--endbr64; push rbx-->
<funcstart/>
</pattern>

<pattern>
<data>0xf30f1efa 0x415.</data> <!--endbr64; push rbx-->
<funcstart/>
</pattern>
</patternlist>
5 changes: 5 additions & 0 deletions plugins/x86/patterns/patternconstraints.xml
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@@ -0,0 +1,5 @@
<patternconstraints>
<language id="x86_64">
<patternfile>cet.xml</patternfile>
</language>
</patternconstraints>