53 lines
1.7 KiB
ArmAsm
53 lines
1.7 KiB
ArmAsm
# RUN: rm -rf %t && mkdir -p %t
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# RUN: llvm-mc -triple=thumbv7s-apple-ios7.0.0 -filetype=obj -o %t/MachO_Thumb.o %s
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# RUN: llvm-rtdyld -triple=thumbv7s-apple-ios7.0.0 -verify -check=%s %t/MachO_Thumb.o
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.section __TEXT,__text,regular,pure_instructions
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.syntax unified
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# Add 'aaa' to the common symbols to make sure 'baz' isn't at the start of the
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# section. This ensures that we test VANILLA relocation addends correctly.
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.comm aaa, 4, 2
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.comm baz, 4, 2
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.globl bar
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.p2align 1
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.code 16 @ @bar
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.thumb_func bar
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bar:
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# Check lower 16-bits of section difference relocation
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# rtdyld-check: decode_operand(insn1, 1) = (foo-(nextPC+8))[15:0]
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insn1:
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movw r0, :lower16:(foo-(nextPC+8))
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# Check upper 16-bits of section difference relocation
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# rtdyld-check: decode_operand(insn2, 2) = (foo-(nextPC+8))[31:16]
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insn2:
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movt r0, :upper16:(foo-(nextPC+8))
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nextPC:
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nop
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# Check stub generation for external symbols by referencing a common symbol, 'baz'.
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# Check both the content of the stub, and the reference to the stub.
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# Stub should contain '0xf000f8df' (ldr.w pc, [pc]), followed by the target.
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#
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o, __text, baz)) = 0xf000f8df
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o, __text, baz) + 4) = baz
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#
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# rtdyld-check: decode_operand(insn3, 0) = stub_addr(MachO_Thumb.o, __text, baz) - (insn3 + 4)
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insn3:
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bl baz
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# Check stub generation for internal symbols by referencing 'bar'.
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# rtdyld-check: *{4}(stub_addr(MachO_Thumb.o, __text, bar) + 4) = bar & 0xfffffffffffffffe
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insn4:
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bl bar
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.section __DATA,__data
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.align 2
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foo:
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.long 0
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.subsections_via_symbols
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