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From d84a971ba917569829b51fff6057e5fd0d85e402 Mon Sep 17 00:00:00 2001
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From: Tom Stellard <tstellar@redhat.com>
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Date: Thu, 18 Jan 2018 02:57:51 +0000
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Subject: [PATCH] Driver: Prefer vendor supplied gcc toolchain
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Summary:
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This patch fixes an issue on Fedora where if you had the x86_64 cross
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compiler installed on your x86_64 system, then clang would use that compiler
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as the default toolchain. This was happening because the cross compiler
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is installed to /usr/lib/gcc/x86_64-linux-gnu/ and this directory comes before
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the default compiler directory (/usr/lib/gcc/x86_64-redhat-linux/) in the search
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list.
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This patch re-orders the search list so that vendor supplied gcc toolchains
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are selected before toolchains with a generic target, which should prevent
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these kind of issues on other OSes too.
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Subscribers: srhines, cfe-commits
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Differential Revision: https://reviews.llvm.org/D42608
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---
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lib/Driver/ToolChains/Gnu.cpp | 47 ++++++++++++++++++++++---------------------
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1 file changed, 24 insertions(+), 23 deletions(-)
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diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
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index 3755673..5a49a6e 100644
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--- a/lib/Driver/ToolChains/Gnu.cpp
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+++ b/lib/Driver/ToolChains/Gnu.cpp
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@@ -1811,18 +1811,19 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
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// lifetime or initialization issues.
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static const char *const AArch64LibDirs[] = {"/lib64", "/lib"};
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static const char *const AArch64Triples[] = {
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- "aarch64-none-linux-gnu", "aarch64-linux-gnu", "aarch64-redhat-linux",
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- "aarch64-suse-linux"};
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+ "aarch64-redhat-linux", "aarch64-suse-linux",
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+ "aarch64-none-linux-gnu", "aarch64-linux-gnu"};
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static const char *const AArch64beLibDirs[] = {"/lib"};
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static const char *const AArch64beTriples[] = {"aarch64_be-none-linux-gnu",
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"aarch64_be-linux-gnu"};
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static const char *const ARMLibDirs[] = {"/lib"};
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static const char *const ARMTriples[] = {"arm-linux-gnueabi"};
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- static const char *const ARMHFTriples[] = {"arm-linux-gnueabihf",
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- "armv7hl-redhat-linux-gnueabi",
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+ static const char *const ARMHFTriples[] = {"armv7hl-redhat-linux-gnueabi",
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"armv6hl-suse-linux-gnueabi",
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- "armv7hl-suse-linux-gnueabi"};
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+ "armv7hl-suse-linux-gnueabi",
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+ "arm-linux-gnueabihf",
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+ };
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static const char *const ARMebLibDirs[] = {"/lib"};
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static const char *const ARMebTriples[] = {"armeb-linux-gnueabi"};
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static const char *const ARMebHFTriples[] = {
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@@ -1830,19 +1831,19 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
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static const char *const X86_64LibDirs[] = {"/lib64", "/lib"};
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static const char *const X86_64Triples[] = {
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- "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
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- "x86_64-pc-linux-gnu", "x86_64-redhat-linux6E",
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- "x86_64-redhat-linux", "x86_64-suse-linux",
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- "x86_64-manbo-linux-gnu", "x86_64-linux-gnu",
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- "x86_64-slackware-linux", "x86_64-unknown-linux",
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- "x86_64-amazon-linux"};
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+ "x86_64-redhat-linux6E", "x86_64-redhat-linux",
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+ "x86_64-suse-linux", "x86_64-slackware-linux",
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+ "x86_64-manbo-linux-gnu", "x86_64-amazon-linux",
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+ "x86_64-linux-gnu", "x86_64-unknown-linux-gnu",
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+ "x86_64-pc-linux-gnu", "x86_64-linux-gnu",
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+ "x86_64-unknown-linux"};
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static const char *const X32LibDirs[] = {"/libx32"};
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static const char *const X86LibDirs[] = {"/lib32", "/lib"};
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static const char *const X86Triples[] = {
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- "i686-linux-gnu", "i686-pc-linux-gnu", "i486-linux-gnu",
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- "i386-linux-gnu", "i386-redhat-linux6E", "i686-redhat-linux",
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- "i586-redhat-linux", "i386-redhat-linux", "i586-suse-linux",
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- "i486-slackware-linux", "i686-montavista-linux", "i586-linux-gnu"};
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+ "i386-redhat-linux6E", "i686-redhat-linux", "i586-redhat-linux",
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+ "i386-redhat-linux", "i586-suse-linux", "i486-slackware-linux",
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+ "i686-montavista-linux", "i686-linux-gnu", "i686-pc-linux-gnu",
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+ "i486-linux-gnu", "i386-linux-gnu", "i586-linux-gnu"};
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static const char *const MIPSLibDirs[] = {"/lib"};
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static const char *const MIPSTriples[] = {"mips-linux-gnu", "mips-mti-linux",
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@@ -1864,16 +1865,16 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
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static const char *const PPCLibDirs[] = {"/lib32", "/lib"};
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static const char *const PPCTriples[] = {
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- "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe",
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- "powerpc-suse-linux", "powerpc-montavista-linuxspe"};
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+ "powerpc-suse-linux", "powerpc-montavista-linuxspe",
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+ "powerpc-linux-gnu", "powerpc-unknown-linux-gnu", "powerpc-linux-gnuspe"};
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static const char *const PPC64LibDirs[] = {"/lib64", "/lib"};
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static const char *const PPC64Triples[] = {
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- "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu",
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- "powerpc64-suse-linux", "ppc64-redhat-linux"};
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+ "powerpc64-suse-linux", "ppc64-redhat-linux",
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+ "powerpc64-linux-gnu", "powerpc64-unknown-linux-gnu"};
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static const char *const PPC64LELibDirs[] = {"/lib64", "/lib"};
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static const char *const PPC64LETriples[] = {
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- "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu",
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- "powerpc64le-suse-linux", "ppc64le-redhat-linux"};
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+ "powerpc64le-suse-linux", "ppc64le-redhat-linux",
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+ "powerpc64le-linux-gnu", "powerpc64le-unknown-linux-gnu"};
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static const char *const RISCV32LibDirs[] = {"/lib", "/lib32"};
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static const char *const RISCVTriples[] = {"riscv32-unknown-linux-gnu",
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@@ -1889,8 +1890,8 @@ void Generic_GCC::GCCInstallationDetector::AddDefaultGCCPrefixes(
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static const char *const SystemZLibDirs[] = {"/lib64", "/lib"};
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static const char *const SystemZTriples[] = {
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- "s390x-linux-gnu", "s390x-unknown-linux-gnu", "s390x-ibm-linux-gnu",
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- "s390x-suse-linux", "s390x-redhat-linux"};
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+ "s390x-ibm-linux-gnu", "s390x-suse-linux", "s390x-redhat-linux",
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+ "s390x-linux-gnu", "s390x-unknown-linux-gnu"};
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using std::begin;
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--
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1.8.3.1
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