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[RuntimeDyld][AArch64] Update relocation tests and also add a simple GOT test.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@213807 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Juergen Ributzka 2014-07-23 22:23:17 +00:00
parent 3322b7eef1
commit 731c4f606a
1 changed files with 40 additions and 25 deletions
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65
test/ExecutionEngine/RuntimeDyld/AArch64/MachO_ARM64_relocations.s
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@ -1,15 +1,13 @@
# RUN: llvm-mc -triple=arm64-apple-ios7.0.0 -code-model=small -relocation-model=pic -filetype=obj -o %t.o %s
# RUN: llvm-rtdyld -triple=arm64-apple-ios7.0.0 -verify -check=%s %t.o
# RUN: rm %t.o
# RUN: llvm-mc -triple=arm64-apple-ios7.0.0 -code-model=small -relocation-model=pic -filetype=obj -o %T/foo.o %s
# RUN: sed "s,<filename>,%/T/foo.o,g" %s > %T/foo.s
# RUN: llvm-rtdyld -triple=arm64-apple-ios7.0.0 -verify -check=%T/foo.s %/T/foo.o
# XFAIL: mips
# FIXME: Add GOT relocation tests once GOT testing is supported.
.section __TEXT,__text,regular,pure_instructions
.ios_version_min 7, 0
.globl foo
.globl _foo
.align 2
foo:
_foo:
movz w0, #0
ret
@ -20,36 +18,53 @@ foo:
# Test ARM64_RELOC_BRANCH26 relocation. The branch instruction only encodes 26
# bits of the 28-bit possible branch range. The lower two bits are always zero
# and therefore ignored.
# rtdyld-check: decode_operand(br1, 0)[25:0] = (foo-br1)[27:2]
# rtdyld-check: decode_operand(br1, 0)[25:0] = (_foo - br1)[27:2]
_test_branch_reloc:
br1:
b foo
b _foo
ret
# Test ARM64_RELOC_UNSIGNED relocation. The absolute 64-bit address of the
# function should be stored at the 8-byte memory location.
# rtdyld-check: *{8}ptr = foo
.section __DATA,__data
.globl ptr
.align 3
.fill 8192, 1, 0
ptr:
.quad foo
# Test ARM64_RELOC_PAGE21 and ARM64_RELOC_PAGEOFF12 relocation. adrp encodes
# the PC-relative page (4 KiB) difference between the adrp instruction and the
# variable ptr. ldr encodes the offset of the variable within the page. The ldr
# instruction perfroms an implicit shift on the encoded immediate (imm<<3).
# rtdyld-check: decode_operand(adrp1, 1) = (ptr[32:12]-adrp1[32:12])
# rtdyld-check: decode_operand(ldr1, 2) = (ptr[11:3])
# rtdyld-check: decode_operand(adrp1, 1) = (_ptr[32:12] - adrp1[32:12])
# rtdyld-check: decode_operand(ldr1, 2) = (_ptr[11:3])
.globl _test_adrp_ldr
.align 2
_test_adrp_ldr:
adrp1:
adrp x0, ptr@PAGE
adrp x0, _ptr@PAGE
ldr1:
ldr x0, [x0, ptr@PAGEOFF]
ldr x0, [x0, _ptr@PAGEOFF]
ret
.fill 8192, 1, 0
# Test ARM64_RELOC_GOT_LOAD_PAGE21 and ARM64_RELOC_GOT_LOAD_PAGEOFF12
# relocation. adrp encodes the PC-relative page (4 KiB) difference between the
# adrp instruction and the GOT entry for ptr. ldr encodes the offset of the GOT
# entry within the page. The ldr instruction perfroms an implicit shift on the
# encoded immediate (imm<<3).
# rtdyld-check: *{8}(stub_addr(<filename>, __text, _ptr)) = _ptr
# rtdyld-check: decode_operand(adrp2, 1) = (stub_addr(<filename>, __text, _ptr)[32:12] - adrp2[32:12])
# rtdyld-check: decode_operand(ldr2, 2) = (stub_addr(<filename>, __text, _ptr)[11:3])
.globl _test_adrp_ldr
.align 2
_test_got_adrp_ldr:
adrp2:
adrp x0, _ptr@GOTPAGE
ldr2:
ldr x0, [x0, _ptr@GOTPAGEOFF]
ret
# Test ARM64_RELOC_UNSIGNED relocation. The absolute 64-bit address of the
# function should be stored at the 8-byte memory location.
# rtdyld-check: *{8}_ptr = _foo
.section __DATA,__data
.globl _ptr
.align 3
.fill 4096, 1, 0
_ptr:
.quad _foo