b910bebc30
`Count` and `Skip` should use `uint64_t` as they are encoded/decoded using 64-bit ULEB128. In `*_OPCODE_DO_*_ULEB_TIMES_SKIPPING_ULEB`, `Skip` could be encoded as a two's complement for moving `SegmentOffset` backwards. Having a 32-bit `Skip` truncates the encoded value and leads to a malformed `AdvanceAmount` and invalid `SegmentOffset` that extends past valid sections.
18 lines
1.1 KiB
Plaintext
18 lines
1.1 KiB
Plaintext
// A valid MachO object with a bind table containing an opcode
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// `BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB` with negative skip value
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// (0xFFFFFFFFFFFFFFF0).
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RUN: yaml2obj %p/Inputs/MachO/bind-negative-skip.yaml | \
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RUN: llvm-objdump --bind --macho - | \
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RUN: FileCheck %s
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CHECK: Bind table:
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CHECK-NEXT: segment section address type addend dylib symbol
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CHECK-NEXT: __DATA_CONST __got 0x100004000 pointer 0 libSystem _free
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CHECK-NEXT: __DATA __data 0x100008040 pointer 0 libSystem _free
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CHECK-NEXT: __DATA_CONST __got 0x100004008 pointer 0 libSystem _malloc
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CHECK-NEXT: __DATA __data 0x100008030 pointer 0 libSystem _malloc
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CHECK-NEXT: __DATA __data 0x100008028 pointer 0 libSystem _malloc
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CHECK-NEXT: __DATA __data 0x100008020 pointer 0 libSystem _malloc
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CHECK-NEXT: __DATA_CONST __got 0x100004010 pointer 0 libSystem dyld_stub_binder
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