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zero undefined registers in eh unwind

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This commit is contained in:
Ryan Fleury
2026-06-09 16:18:47 -07:00
parent ffb79a67ef
commit 5ddad36380
1 changed files with 4 additions and 1 deletions
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src/eh_frame/unwind/eh_frame_unwind.c
+4 -1
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@@ -570,8 +570,11 @@ eh_uwnd_step(Arch arch, MemoryMap *memory_map, UWND_ModuleInfo *module_info, U64
switch(rule->code) switch(rule->code)
{ {
default: default:
case DW_UnwindRuleCode_Undefined:
case DW_UnwindRuleCode_SameVal:{}break; case DW_UnwindRuleCode_SameVal:{}break;
case DW_UnwindRuleCode_Undefined:
{
MemoryZero((U8 *)regs + reg_rng.min, reg_size);
}break;
case DW_UnwindRuleCode_Off: case DW_UnwindRuleCode_Off:
{ {
Temp temp = temp_begin(scratch.arena); Temp temp = temp_begin(scratch.arena);