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AArch64_BE Elf support for MC-JIT runtime dynamic linker

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204816 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Christian Pirker 2014-03-26 14:57:32 +00:00
parent 53ccc093bf
commit a634d0a570
4 changed files with 5 additions and 2 deletions
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2
lib/ExecutionEngine/RuntimeDyld/RuntimeDyld.cpp
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@ -490,7 +490,7 @@ void RuntimeDyldImpl::addRelocationForSymbol(const RelocationEntry &RE,
}
uint8_t *RuntimeDyldImpl::createStubFunction(uint8_t *Addr) {
if (Arch == Triple::aarch64) {
if (Arch == Triple::aarch64 || Arch == Triple::aarch64_be) {
// This stub has to be able to access the full address space,
// since symbol lookup won't necessarily find a handy, in-range,
// PLT stub for functions which could be anywhere.

1
lib/ExecutionEngine/RuntimeDyld/RuntimeDyldELF.cpp
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@ -844,6 +844,7 @@ void RuntimeDyldELF::resolveRelocation(const SectionEntry &Section,
(uint32_t)(Addend & 0xffffffffL));
break;
case Triple::aarch64:
case Triple::aarch64_be:
resolveAArch64Relocation(Section, Offset, Value, Type, Addend);
break;
case Triple::arm: // Fall through.

3
lib/MC/MCObjectFileInfo.cpp
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@ -283,7 +283,8 @@ void MCObjectFileInfo::InitELFMCObjectFileInfo(Triple T) {
TTypeEncoding = (CMModel == CodeModel::Small)
? dwarf::DW_EH_PE_udata4 : dwarf::DW_EH_PE_absptr;
}
} else if (T.getArch() == Triple::aarch64) {
} else if (T.getArch() == Triple::aarch64 ||
T.getArch() == Triple::aarch64_be ) {
// The small model guarantees static code/data size < 4GB, but not where it
// will be in memory. Most of these could end up >2GB away so even a signed
// pc-relative 32-bit address is insufficient, theoretically.

1
test/CodeGen/AArch64/pic-eh-stubs.ll
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@ -1,4 +1,5 @@
; RUN: llc -mtriple=aarch64-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
; RUN: llc -mtriple=aarch64_be-none-linux-gnu -relocation-model=pic -o - %s | FileCheck %s
; Make sure exception-handling PIC code can be linked correctly. An alternative
; to the sequence described below would have .gcc_except_table itself writable