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[Hexagon] Linux linker does not support .gnu-hash 

Hexagon Linux dynamic loader does not use (in fact does not support)
.gnu-hash

Differential Revision: https://reviews.llvm.org/D28865

llvm-svn: 292496
This commit is contained in:
Sumanth Gundapaneni 2017-01-19 16:54:04 +00:00
parent 5f2f53b106
commit 1952acf958
2 changed files with 11 additions and 1 deletions
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4
clang/lib/Driver/ToolChains.cpp
View File

@ -4122,6 +4122,7 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
const bool IsAndroid = Triple.isAndroid();
const bool IsMips = isMipsArch(Arch);
const bool IsHexagon = Arch == llvm::Triple::hexagon;
if (IsMips && !SysRoot.empty())
ExtraOpts.push_back("--sysroot=" + SysRoot);
@ -4131,7 +4132,8 @@ Linux::Linux(const Driver &D, const llvm::Triple &Triple, const ArgList &Args)
// .gnu.hash needs symbols to be grouped by hash code whereas the MIPS
// ABI requires a mapping between the GOT and the symbol table.
// Android loader does not support .gnu.hash.
if (!IsMips && !IsAndroid) {
// Hexagon linker/loader does not support .gnu.hash
if (!IsMips && !IsAndroid && !IsHexagon) {
if (Distro.IsRedhat() || Distro.IsOpenSUSE() ||
(Distro.IsUbuntu() && Distro >= Distro::UbuntuMaverick))
ExtraOpts.push_back("--hash-style=gnu");

8
clang/test/Driver/linux-ld.c
View File

@ -705,6 +705,14 @@
// CHECK-PPC64LE-ELFv2: "-m" "elf64lppc"
// CHECK-PPC64LE-ELFv2: "-dynamic-linker" "{{.*}}/lib{{(64)?}}/ld64.so.2"
//
// Check that we do not pass --hash-style=gnu or --hash-style=both to
// hexagon linux linker
// RUN: %clang %s -### -o %t.o 2>&1 \
// RUN: --target=hexagon-linux-gnu \
// RUN: | FileCheck --check-prefix=CHECK-HEXAGON %s
// CHECK-HEXAGON: "{{.*}}hexagon-link{{(.exe)?}}"
// CHECK-HEXAGON-NOT: "--hash-style={{gnu|both}}"
//
// Check that we do not pass --hash-style=gnu and --hash-style=both to linker
// and provide correct path to the dynamic linker and emulation mode when build
// for MIPS platforms.