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commit 3450272fc281979388bb845a9fffb59b42cc2e7e
Author: Jessica Clarke <jrtc27@jrtc27.com>
Date: Mon Jul 10 01:40:58 2023 +0100
[Driver][FreeBSD] Generalise lib32 handling to support arm
The current code maintains its own list of 32-bit architectures for
which there is a 64-bit FreeBSD architecture that supports it for lib32.
This is unnecessary (if it's not supported, the directory just won't
exist), and means that, when FreeBSD gains lib32 support for a new
architecture, you need an updated toolchain that knows about it.
Instead we can check for any 32-bit architecture and have forwards
compatibility.
This is motivated by FreeBSD adding support for building arm lib32
libraries on aarch64.
Co-authored-by: Mike Karels <karels@FreeBSD.org>
diff --git clang/lib/Driver/ToolChains/FreeBSD.cpp clang/lib/Driver/ToolChains/FreeBSD.cpp
--- clang/lib/Driver/ToolChains/FreeBSD.cpp.orig 2022-06-22 17:46:24.000000000 +0100
+++ clang/lib/Driver/ToolChains/FreeBSD.cpp 2023-07-12 18:38:47.053029000 +0100
@@ -385,8 +385,7 @@
// When targeting 32-bit platforms, look for '/usr/lib32/crt1.o' and fall
// back to '/usr/lib' if it doesn't exist.
- if ((Triple.getArch() == llvm::Triple::x86 || Triple.isMIPS32() ||
- Triple.isPPC32()) &&
+ if (Triple.isArch32Bit() &&
D.getVFS().exists(getDriver().SysRoot + "/usr/lib32/crt1.o"))
getFilePaths().push_back(getDriver().SysRoot + "/usr/lib32");
else
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