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a2c451c57b
Requested by Eugene Rozenfeld of the LLILC team, this feature allows JIT clients to skip relocations for selected external symbols by returning ~0ULL from their symbol resolver. If this value is returned for a given symbol, RuntimeDyld will skip all relocations for that symbol. The client will be responsible for applying the skipped relocations manually before the code is executed. llvm-svn: 241383
61 lines
1.6 KiB
ArmAsm
61 lines
1.6 KiB
ArmAsm
# RUN: llvm-mc -triple=x86_64-apple-macosx10.9 -relocation-model=pic -filetype=obj -o %T/test_x86-64.o %s
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# RUN: llvm-rtdyld -triple=x86_64-apple-macosx10.9 -dummy-extern ds1=0xfffffffffffffffe -dummy-extern ds2=0xffffffffffffffff -verify -check=%s %/T/test_x86-64.o
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.section __TEXT,__text,regular,pure_instructions
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.globl foo
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.align 4, 0x90
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foo:
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retq
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.globl main
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.align 4, 0x90
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main:
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# Test PC-rel branch.
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# rtdyld-check: decode_operand(insn1, 0) = foo - next_pc(insn1)
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insn1:
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callq foo
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# Test PC-rel signed.
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# rtdyld-check: decode_operand(insn2, 4) = x - next_pc(insn2)
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insn2:
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movl x(%rip), %eax
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# Test PC-rel GOT relocation.
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# Verify both the contents of the GOT entry for y, and that the movq instruction
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# references the correct GOT entry address:
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# rtdyld-check: *{8}(stub_addr(test_x86-64.o, __text, y)) = y
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# rtdyld-check: decode_operand(insn3, 4) = stub_addr(test_x86-64.o, __text, y) - next_pc(insn3)
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insn3:
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movq y@GOTPCREL(%rip), %rax
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movl $0, %eax
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retq
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# Test processing of the __eh_frame section.
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# rtdyld-check: *{8}(section_addr(test_x86-64.o, __eh_frame) + 0x20) = eh_frame_test - (section_addr(test_x86-64.o, __eh_frame) + 0x20)
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eh_frame_test:
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.cfi_startproc
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retq
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.cfi_endproc
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.comm y,4,2
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.section __DATA,__data
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.globl x
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.align 2
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x:
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.long 5
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# Test dummy-extern relocation.
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# rtdyld-check: *{8}z1 = ds1
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z1:
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.quad ds1
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# Test external-symbol relocation bypass: symbols with addr 0xffffffffffffffff
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# don't have their relocations applied.
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# rtdyld-check: *{8}z2 = 0
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z2:
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.quad ds2
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.subsections_via_symbols
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