Yonghong Song 284d1a3fdb [BPF] Permit all user instructed offset relocatiions ...

Currently, not all user specified relocations
(with clang intrinsic __builtin_preserve_access_index())
will turn into relocations.

In the current implementation, a __builtin_preserve_access_index()
chain is turned into relocation only if the result of the clang
intrinsic is used in a function call or a nonzero offset computation
of getelementptr. For all other cases, the relocatiion request
is ignored and the __builtin_preserve_access_index() is turned
into regular getelementptr instructions.
The main reason is to mimic bpf_probe_read() requirement.

But there are other use cases where relocatable offset is
generated but not used for bpf_probe_read(). This patch
relaxed previous constraints when to generate relocations.
Now, all user __builtin_preserve_access_index() will have
relocations generated.

Differential Revision: https://reviews.llvm.org/D67688

llvm-svn: 372198

2019-09-18 03:49:07 +00:00

..

Analysis

Revert "Data Dependence Graph Basics"

2019-09-17 19:22:01 +00:00

AsmParser

[llvm] Migrate llvm::make_unique to std::make_unique

2019-08-15 15:54:37 +00:00

BinaryFormat

[BinaryFormat] Teach identify_magic about Tapi files.

2019-08-21 21:00:16 +00:00

Bitcode

Do a sweep of symbol internalization. NFC.

2019-08-23 19:59:23 +00:00

Bitstream

[Bitcode] Move Bitstream to a separate library

2019-07-03 22:40:07 +00:00

CodeGen

[Remarks] Allow the RemarkStreamer to be used directly with a stream

2019-09-18 01:04:45 +00:00

DebugInfo

GSYM: Add the llvm::gsym::Header header class with tests

2019-09-17 17:46:13 +00:00

Demangle

Synchronize LLVM's copy of libc++abi's demangler with the libc++abi

2019-09-07 00:11:53 +00:00

ExecutionEngine

[ExecutionEngine] Don't dereference a dyn_cast result. NFCI.

2019-09-16 15:19:11 +00:00

Fuzzer

…

FuzzMutate

[llvm] Migrate llvm::make_unique to std::make_unique

2019-08-15 15:54:37 +00:00

IR

[Remarks] Allow the RemarkStreamer to be used directly with a stream

2019-09-18 01:04:45 +00:00

IRReader

[IRReader] Expose getLazyIRModule

2019-02-11 22:01:13 +00:00

LineEditor

[CMake] Delete redundant DEPENDS/LINK_LIBS from LineEditor/XRay

2019-06-22 01:50:21 +00:00

Linker

[IRMover] Don't map globals if their types are the same

2019-09-11 18:35:49 +00:00

LTO

[LTO][Legacy] Add new C inferface to query libcall functions

2019-09-16 18:49:54 +00:00

MC

[Alignment] Introduce llvm::Align to MCSection

2019-09-13 09:29:59 +00:00

MCA

[Tblgen][MCA] Add the ability to mark groups as LoadQueue and StoreQueue. NFCI

2019-08-27 18:20:34 +00:00

Object

[ARM] VFPv2 only supports 16 D registers.

2019-09-17 21:42:38 +00:00

ObjectYAML

WasmEmitter - Don't dereference a dyn_cast result. NFCI.

2019-09-17 19:14:11 +00:00

Option

[llvm] Migrate llvm::make_unique to std::make_unique

2019-08-15 15:54:37 +00:00

Passes

Revert "Data Dependence Graph Basics"

2019-09-17 19:22:01 +00:00

ProfileData

[PGO] Change hardcoded thresholds for cold/inlinehint to use summary

2019-09-17 23:12:13 +00:00

Remarks

[Remarks] Allow remarks::Format::YAML to take a string table

2019-09-16 22:45:17 +00:00

Support

[ARM] VFPv2 only supports 16 D registers.

2019-09-17 21:42:38 +00:00

TableGen

[TableGen] Skip CRLF conversion when writing output

2019-09-11 22:33:50 +00:00

Target

[BPF] Permit all user instructed offset relocatiions

2019-09-18 03:49:07 +00:00

Testing

[Testing] Move clangd::Annotations to llvm testing support

2019-04-25 10:08:31 +00:00

TextAPI

Revert [llvm-nm] Add tapi file support

2019-09-11 21:35:28 +00:00

ToolDrivers

[llvm-dlltool] Handle external and internal names with differing decoration

2019-09-02 13:28:16 +00:00

Transforms

[PGO] Change hardcoded thresholds for cold/inlinehint to use summary

2019-09-17 23:12:13 +00:00

WindowsManifest

Fight a bit against global initializers. NFC.

2019-08-22 19:43:27 +00:00

XRay

[llvm] Migrate llvm::make_unique to std::make_unique

2019-08-15 15:54:37 +00:00

CMakeLists.txt

Fix build errors LLVM tests are disabled.

2019-07-11 22:08:35 +00:00

LLVMBuild.txt

[Bitcode] Move Bitstream to a separate library

2019-07-03 22:40:07 +00:00