diff options
Diffstat (limited to 'lld/COFF/DLL.cpp')
| -rw-r--r-- | lld/COFF/DLL.cpp | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/lld/COFF/DLL.cpp b/lld/COFF/DLL.cpp index 464abe8e089..8f1692e789d 100644 --- a/lld/COFF/DLL.cpp +++ b/lld/COFF/DLL.cpp @@ -230,6 +230,36 @@ static const uint8_t ThunkARM[] = { 0x60, 0x47, // bx ip }; +static const uint8_t ThunkARM64[] = { + 0x11, 0x00, 0x00, 0x90, // adrp x17, #0 __imp_<FUNCNAME> + 0x31, 0x02, 0x00, 0x91, // add x17, x17, #0 :lo12:__imp_<FUNCNAME> + 0xfd, 0x7b, 0xb3, 0xa9, // stp x29, x30, [sp, #-208]! + 0xfd, 0x03, 0x00, 0x91, // mov x29, sp + 0xe0, 0x07, 0x01, 0xa9, // stp x0, x1, [sp, #16] + 0xe2, 0x0f, 0x02, 0xa9, // stp x2, x3, [sp, #32] + 0xe4, 0x17, 0x03, 0xa9, // stp x4, x5, [sp, #48] + 0xe6, 0x1f, 0x04, 0xa9, // stp x6, x7, [sp, #64] + 0xe0, 0x87, 0x02, 0xad, // stp q0, q1, [sp, #80] + 0xe2, 0x8f, 0x03, 0xad, // stp q2, q3, [sp, #112] + 0xe4, 0x97, 0x04, 0xad, // stp q4, q5, [sp, #144] + 0xe6, 0x9f, 0x05, 0xad, // stp q6, q7, [sp, #176] + 0xe1, 0x03, 0x11, 0xaa, // mov x1, x17 + 0x00, 0x00, 0x00, 0x90, // adrp x0, #0 DELAY_IMPORT_DESCRIPTOR + 0x00, 0x00, 0x00, 0x91, // add x0, x0, #0 :lo12:DELAY_IMPORT_DESCRIPTOR + 0x00, 0x00, 0x00, 0x94, // bl #0 __delayLoadHelper2 + 0xf0, 0x03, 0x00, 0xaa, // mov x16, x0 + 0xe6, 0x9f, 0x45, 0xad, // ldp q6, q7, [sp, #176] + 0xe4, 0x97, 0x44, 0xad, // ldp q4, q5, [sp, #144] + 0xe2, 0x8f, 0x43, 0xad, // ldp q2, q3, [sp, #112] + 0xe0, 0x87, 0x42, 0xad, // ldp q0, q1, [sp, #80] + 0xe6, 0x1f, 0x44, 0xa9, // ldp x6, x7, [sp, #64] + 0xe4, 0x17, 0x43, 0xa9, // ldp x4, x5, [sp, #48] + 0xe2, 0x0f, 0x42, 0xa9, // ldp x2, x3, [sp, #32] + 0xe0, 0x07, 0x41, 0xa9, // ldp x0, x1, [sp, #16] + 0xfd, 0x7b, 0xcd, 0xa8, // ldp x29, x30, [sp], #208 + 0x00, 0x02, 0x1f, 0xd6, // br x16 +}; + // A chunk for the delay import thunk. class ThunkChunkX64 : public Chunk { public: @@ -298,6 +328,28 @@ public: Defined *Helper = nullptr; }; +class ThunkChunkARM64 : public Chunk { +public: + ThunkChunkARM64(Defined *I, Chunk *D, Defined *H) + : Imp(I), Desc(D), Helper(H) {} + + size_t getSize() const override { return sizeof(ThunkARM64); } + + void writeTo(uint8_t *Buf) const override { + memcpy(Buf + OutputSectionOff, ThunkARM64, sizeof(ThunkARM64)); + applyArm64Addr(Buf + OutputSectionOff + 0, Imp->getRVA(), RVA + 0, 12); + applyArm64Imm(Buf + OutputSectionOff + 4, Imp->getRVA() & 0xfff, 0); + applyArm64Addr(Buf + OutputSectionOff + 52, Desc->getRVA(), RVA + 52, 12); + applyArm64Imm(Buf + OutputSectionOff + 56, Desc->getRVA() & 0xfff, 0); + applyArm64Branch26(Buf + OutputSectionOff + 60, + Helper->getRVA() - RVA - 60); + } + + Defined *Imp = nullptr; + Chunk *Desc = nullptr; + Defined *Helper = nullptr; +}; + // A chunk for the import descriptor table. class DelayAddressChunk : public Chunk { public: @@ -555,6 +607,8 @@ Chunk *DelayLoadContents::newThunkChunk(DefinedImportData *S, Chunk *Dir) { return make<ThunkChunkX86>(S, Dir, Helper); case ARMNT: return make<ThunkChunkARM>(S, Dir, Helper); + case ARM64: + return make<ThunkChunkARM64>(S, Dir, Helper); default: llvm_unreachable("unsupported machine type"); } |
