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Toolchain/Clang: Allow setting a default unwind library

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This will let us use `libgcc` for unwinding when we build the LLVM port
with the GNU toolchain.
This commit is contained in:
Daniel Bertalan 2021-11-20 16:40:15 +01:00 committed by Brian Gianforcaro
parent ea8335cda1
commit ce3b219021
Notes: sideshowbarker 2024-07-18 00:35:14 +09:00 
Author: https://github.com/BertalanD
Commit: https://github.com/SerenityOS/serenity/commit/ce3b2190211
Pull-request: https://github.com/SerenityOS/serenity/pull/10996
Reviewed-by: https://github.com/timschumi ✅
1 changed files with 4 additions and 3 deletions
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7
Toolchain/Patches/llvm.patch
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@ -136,10 +136,10 @@ index 58ae08a38..8e9a3fee6 100644
options::OPT_foperator_names, false))
diff --git a/clang/lib/Driver/ToolChains/Serenity.cpp b/clang/lib/Driver/ToolChains/Serenity.cpp
new file mode 100644
index 000000000..b21be0f9d
index 000000000..461f55ad3
--- /dev/null
+++ b/clang/lib/Driver/ToolChains/Serenity.cpp
@@ -0,0 +1,280 @@
@@ -0,0 +1,281 @@
+//===---- Serenity.cpp - SerenityOS ToolChain Implementation ----*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
@ -150,6 +150,7 @@ index 000000000..b21be0f9d
+
+#include "Serenity.h"
+#include "CommonArgs.h"
+#include "clang/Config/config.h"
+#include "clang/Driver/Compilation.h"
+#include "clang/Driver/Driver.h"
+#include "clang/Driver/DriverDiagnostic.h"
@ -396,7 +397,7 @@ index 000000000..b21be0f9d
+Serenity::GetUnwindLibType(const llvm::opt::ArgList &Args) const {
+
+ const Arg *A = Args.getLastArg(options::OPT_unwindlib_EQ);
+ StringRef LibName = A ? A->getValue() : "";
+ StringRef LibName = A ? A->getValue() : CLANG_DEFAULT_UNWINDLIB;
+
+ if (LibName == "none") {
+ return ToolChain::UNW_None;