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| author | Eugene Leviant <eleviant@accesssoftek.com> | 2017-02-06 15:31:28 +0000 |
|---|---|---|
| committer | Eugene Leviant <eleviant@accesssoftek.com> | 2017-02-06 15:31:28 +0000 |
| commit | 3523e86a0b8bfeacf640aad83d72336bb1a5df44 (patch) | |
| tree | eeaf53cb5eb3a696ee58948eb8db6c37cfc89609 /test/ExecutionEngine | |
| parent | 6f12c47b49aa3cf76b7c63035b9d1a5277baa582 (diff) | |
RuntimeDyldELF/AArch64: Implement basic GOT support
This patch implements two GOT relocations:
R_AARCH64_ADR_GOT_PAGE and R_AARCH64_LD64_GOT_LO12_NC
Differential revision: https://reviews.llvm.org/D28571
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@294191 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/ExecutionEngine')
| -rw-r--r-- | test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_PIC_relocations.s | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_PIC_relocations.s b/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_PIC_relocations.s new file mode 100644 index 00000000000..ba00afc7ad9 --- /dev/null +++ b/test/ExecutionEngine/RuntimeDyld/AArch64/ELF_ARM64_PIC_relocations.s @@ -0,0 +1,46 @@ +# RUN: llvm-mc -triple=arm64-none-linux-gnu -filetype=obj -o %T/pic-reloc.o %s +# RUN: llvm-rtdyld -triple=arm64-none-linux-gnu -verify -check=%s %T/pic-reloc.o \ +# RUN: -map-section pic-reloc.o,.got=0x20000 -dummy-extern f=0x1234 -dummy-extern g=0x5678 + +_s: + nop +_a1: + adrp x8, :got:f +_a2: + adrp x9, :got:g +_a3: + adrp x10, :got:_s +_l1: + ldr x8, [x8, :got_lo12:f] +_l2: + ldr x9, [x9, :got_lo12:g] +_l3: + ldr x10, [x10, :got_lo12:_s] + + +## We'll end up having two sections .text and .got, +## each is located on the start of a memory page + +## Test that .got section has three entries pointing to f, g and _s +# *{8}section_addr(pic-reloc.o, .got) = f +# *{8}(section_addr(pic-reloc.o, .got) + 8) = g +# *{8}(section_addr(pic-reloc.o, .got) + 16) = _s + +## Test that first adrp instruction really takes address of +## the .got section (_s label is on the start of a page) +# rtdyld-check: _s + (((*{4}_a1)[30:29] + ((*{4}_a1)[23:5] << 2)) << 12) = section_addr(pic-reloc.o, .got) + +## Test that second adrp takes address of .got +# rtdyld-check: _s + (((*{4}_a2)[30:29] + ((*{4}_a2)[23:5] << 2)) << 12) = section_addr(pic-reloc.o, .got) + +## Test that third adrp takes address of .got +# rtdyld-check: _s + (((*{4}_a3)[30:29] + ((*{4}_a3)[23:5] << 2)) << 12) = section_addr(pic-reloc.o, .got) + +## Test that first ldr immediate value is 0 >> 3 = 0 (1st .got entry) +# rtdyld-check: (*{4}_l1)[21:10] = 0 + +## Test that second ldr immediate value is 8 >> 3 = 1 (2nd .got entry) +# rtdyld-check: (*{4}_l2)[21:10] = 1 + +## Test that third ldr immediate value is 16 >> 3 = 2 (3rd .got entry, addend is 0) +# rtdyld-check: (*{4}_l3)[21:10] = 2 |