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From 09ae3ef5710a89505318ec721c65b6c838147276 Mon Sep 17 00:00:00 2001
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From: Tom Stellard <tstellar@redhat.com>
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Date: Thu, 7 Feb 2019 21:05:37 -0800
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Subject: [PATCH] ToolChain: Add -lgcc_s to the linker flags when using libc++
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The libc++ build for Fedora does not include an implementation of
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libunwind, so we need to explicitly link against something that
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provides this implementation.
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---
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clang/lib/Driver/ToolChain.cpp | 1 +
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clang/test/Driver/netbsd.cpp | 4 ++--
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2 files changed, 3 insertions(+), 2 deletions(-)
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diff --git a/lib/Driver/ToolChain.cpp b/lib/Driver/ToolChain.cpp
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index 88a627e..cb99844 100644
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--- a/lib/Driver/ToolChain.cpp
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+++ b/lib/Driver/ToolChain.cpp
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@@ -767,6 +767,7 @@ void ToolChain::AddCXXStdlibLibArgs(const ArgList &Args,
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switch (Type) {
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case ToolChain::CST_Libcxx:
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CmdArgs.push_back("-lc++");
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+ CmdArgs.push_back("-lgcc_s");
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break;
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case ToolChain::CST_Libstdcxx:
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diff --git a/test/Driver/netbsd.cpp b/test/Driver/netbsd.cpp
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index 4af7d83..ff18c62 100644
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--- a/test/Driver/netbsd.cpp
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+++ b/test/Driver/netbsd.cpp
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@@ -131,7 +131,7 @@
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// ARM-7: clang{{.*}}" "-cc1" "-triple" "armv5e-unknown-netbsd7.0.0-eabi"
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// ARM-7: ld{{.*}}" "--eh-frame-hdr" "-dynamic-linker" "/libexec/ld.elf_so"
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// ARM-7: "-o" "a.out" "{{.*}}/usr/lib{{/|\\\\}}crt0.o" "{{.*}}/usr/lib{{/|\\\\}}eabi{{/|\\\\}}crti.o"
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-// ARM-7: "{{.*}}/usr/lib{{/|\\\\}}crtbegin.o" "{{.*}}.o" "-lc++" "-lm" "-lc"
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+// ARM-7: "{{.*}}/usr/lib{{/|\\\\}}crtbegin.o" "{{.*}}.o" "-lc++" "-lgcc_s" "-lm" "-lc"
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// ARM-7: "{{.*}}/usr/lib{{/|\\\\}}crtend.o" "{{.*}}/usr/lib{{/|\\\\}}crtn.o"
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// AARCH64: clang{{.*}}" "-cc1" "-triple" "aarch64-unknown-netbsd"
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@@ -250,7 +250,7 @@
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// S-ARM-7: clang{{.*}}" "-cc1" "-triple" "armv5e-unknown-netbsd7.0.0-eabi"
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// S-ARM-7: ld{{.*}}" "--eh-frame-hdr" "-Bstatic"
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// S-ARM-7: "-o" "a.out" "{{.*}}/usr/lib{{/|\\\\}}crt0.o" "{{.*}}/usr/lib{{/|\\\\}}eabi{{/|\\\\}}crti.o"
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-// S-ARM-7: "{{.*}}/usr/lib{{/|\\\\}}crtbegin.o" "{{.*}}.o" "-lc++" "-lm" "-lc"
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+// S-ARM-7: "{{.*}}/usr/lib{{/|\\\\}}crtbegin.o" "{{.*}}.o" "-lc++" "-lgcc_s" "-lm" "-lc"
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// S-ARM-7: "{{.*}}/usr/lib{{/|\\\\}}crtend.o" "{{.*}}/usr/lib{{/|\\\\}}crtn.o"
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// S-AARCH64: clang{{.*}}" "-cc1" "-triple" "aarch64-unknown-netbsd"
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--
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1.8.3.1
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