11a02de782
After PrePrunePass `claimOrExternalizeWeakAndCommonSymbols`, a defined symbol might become external. So determine a function call is external or not when building the linkgraph is not accurate. This largely affects updating TOC pointer on PowerPC. TOC pointer is supposed to be the same in one object file(if no mulitple TOC appears) and is updated when control flow transferred to another object file. This patch defers checking a function call is external or not, in `buildTables_ELF_ppc64` which is a PostPrunePass. This patch fixes failures when `jitlink -orc-runtime=/path/to/libort_rt.a` is used. Reviewed By: lhames Differential Revision: https://reviews.llvm.org/D155925
101 lines
3.5 KiB
C++
101 lines
3.5 KiB
C++
//===----- ppc64.cpp - Generic JITLink ppc64 edge kinds, utilities ------===//
|
|
//
|
|
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
|
|
// See https://llvm.org/LICENSE.txt for license information.
|
|
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Generic utilities for graphs representing 64-bit PowerPC objects.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "llvm/ExecutionEngine/JITLink/ppc64.h"
|
|
|
|
#define DEBUG_TYPE "jitlink"
|
|
|
|
namespace llvm::jitlink::ppc64 {
|
|
|
|
const char NullPointerContent[8] = {0x00, 0x00, 0x00, 0x00,
|
|
0x00, 0x00, 0x00, 0x00};
|
|
|
|
const char PointerJumpStubContent_little[20] = {
|
|
0x18, 0x00, 0x41, (char)0xf8, // std r2, 24(r1)
|
|
0x00, 0x00, (char)0x82, 0x3d, // addis r12, r2, OffHa
|
|
0x00, 0x00, (char)0x8c, (char)0xe9, // ld r12, OffLo(r12)
|
|
(char)0xa6, 0x03, (char)0x89, 0x7d, // mtctr r12
|
|
0x20, 0x04, (char)0x80, 0x4e, // bctr
|
|
};
|
|
|
|
const char PointerJumpStubContent_big[20] = {
|
|
(char)0xf8, 0x41, 0x00, 0x18, // std r2, 24(r1)
|
|
0x3d, (char)0x82, 0x00, 0x00, // addis r12, r2, OffHa
|
|
(char)0xe9, (char)0x8c, 0x00, 0x00, // ld r12, OffLo(r12)
|
|
0x7d, (char)0x89, 0x03, (char)0xa6, // mtctr r12
|
|
0x4e, (char)0x80, 0x04, 0x20, // bctr
|
|
};
|
|
|
|
// TODO: We can use prefixed instructions if LLJIT is running on power10.
|
|
const char PointerJumpStubNoTOCContent_little[32] = {
|
|
(char)0xa6, 0x02, (char)0x88, 0x7d, // mflr 12
|
|
0x05, (char)0x00, (char)0x9f, 0x42, // bcl 20,31,.+4
|
|
(char)0xa6, 0x02, 0x68, 0x7d, // mflr 11
|
|
(char)0xa6, 0x03, (char)0x88, 0x7d, // mtlr 12
|
|
0x00, 0x00, (char)0x8b, 0x3d, // addis 12,11,OffHa
|
|
0x00, 0x00, (char)0x8c, (char)0xe9, // ld 12, OffLo(12)
|
|
(char)0xa6, 0x03, (char)0x89, 0x7d, // mtctr 12
|
|
0x20, 0x04, (char)0x80, 0x4e, // bctr
|
|
};
|
|
|
|
const char PointerJumpStubNoTOCContent_big[32] = {
|
|
0x7d, (char)0x88, 0x02, (char)0xa6, // mflr 12
|
|
0x42, (char)0x9f, 0x00, 0x05, // bcl 20,31,.+4
|
|
0x7d, 0x68, 0x02, (char)0xa6, // mflr 11
|
|
0x7d, (char)0x88, 0x03, (char)0xa6, // mtlr 12
|
|
0x3d, (char)0x8b, 0x00, 0x00, // addis 12,11,OffHa
|
|
(char)0xe9, (char)0x8c, 0x00, 0x00, // ld 12, OffLo(12)
|
|
0x7d, (char)0x89, 0x03, (char)0xa6, // mtctr 12
|
|
0x4e, (char)0x80, 0x04, 0x20, // bctr
|
|
};
|
|
|
|
const char *getEdgeKindName(Edge::Kind K) {
|
|
switch (K) {
|
|
case Pointer64:
|
|
return "Pointer64";
|
|
case Pointer32:
|
|
return "Pointer32";
|
|
case Delta64:
|
|
return "Delta64";
|
|
case Delta32:
|
|
return "Delta32";
|
|
case NegDelta32:
|
|
return "NegDelta32";
|
|
case Delta16:
|
|
return "Delta16";
|
|
case Delta16HA:
|
|
return "Delta16HA";
|
|
case Delta16LO:
|
|
return "Delta16LO";
|
|
case TOCDelta16HA:
|
|
return "TOCDelta16HA";
|
|
case TOCDelta16LO:
|
|
return "TOCDelta16LO";
|
|
case TOCDelta16DS:
|
|
return "TOCDelta16DS";
|
|
case TOCDelta16LODS:
|
|
return "TOCDelta16LODS";
|
|
case CallBranchDelta:
|
|
return "CallBranchDelta";
|
|
case CallBranchDeltaRestoreTOC:
|
|
return "CallBranchDeltaRestoreTOC";
|
|
case RequestCall:
|
|
return "RequestCall";
|
|
case RequestCallNoTOC:
|
|
return "RequestCallNoTOC";
|
|
default:
|
|
return getGenericEdgeKindName(static_cast<Edge::Kind>(K));
|
|
}
|
|
}
|
|
|
|
} // end namespace llvm::jitlink::ppc64
|