https://github.com/xingxue-ibm created
https://github.com/llvm/llvm-project/pull/69767
This PR adds `static_cast` to the value returned from `getLR()` in the AIX
unwinder to avoid warning if `-Wconversion` is specified for building in 32-bit
mode.
>From 2255e2c9a66420bba36bf4ba7f3d8db36d7e4dfc Mon Sep 17 00:00:00 2001
From: Xing Xue <xing...@outlook.com>
Date: Fri, 20 Oct 2023 15:54:56 -0400
Subject: [PATCH] Add static_cast for the value from getLR() to avoid the
warning from -Wconversion when it is in 32-bit mode.
---
libunwind/src/UnwindCursor.hpp | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libunwind/src/UnwindCursor.hpp b/libunwind/src/UnwindCursor.hpp
index f89c5b2c2f73e33..647a5a9c9d92d91 100644
--- a/libunwind/src/UnwindCursor.hpp
+++ b/libunwind/src/UnwindCursor.hpp
@@ -2404,7 +2404,7 @@ int UnwindCursor<A, R>::stepWithTBTable(pint_t pc,
tbtable *TBTable,
if (!TBTable->tb.saves_lr && registers.getLR()) {
// This case should only occur if we were called from a signal handler
// and the signal occurred in a function that doesn't save the LR.
- returnAddress = registers.getLR();
+ returnAddress = static_cast<pint_t>(registers.getLR());
_LIBUNWIND_TRACE_UNWINDING("Use saved LR=%p",
reinterpret_cast<void *>(returnAddress));
} else {
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