arm64-reloc-negDelta32-fixup.yaml 4.59 KB
# RUN: ld64.lld -arch arm64 -r %s -o %t
# RUN: ld64.lld -arch arm64 -r %t -o %t2
# RUN: llvm-objdump -s --section="__eh_frame" %t | FileCheck %s
# RUN: llvm-objdump -s --section="__eh_frame" %t2 | FileCheck %s

# The reference from FDE->CIE is implicitly created as a negDelta32.
# We don't emit these in to the binary as relocations, so we need to
# make sure that the offset in the FDE to the CIE is the correct value.
# CHECK: {{[0-9abcdef]*}} 10000000 00000000 017a5200 01781e01
# CHECK: {{[0-9abcdef]*}} 100c1f00 20000000 18000000 b8ffffff
# Note, this one that matters               ^~~~~~~~
# It needs to be 0x18 as that is the offset back to 0 where the CIE is.
# CHECK: {{[0-9abcdef]*}} ffffffff 20000000 00000000 00480e10
# CHECK: {{[0-9abcdef]*}} 9e019d02 00000000

---  !mach-o
arch:            arm64
file-type:       MH_OBJECT
flags:           [ MH_SUBSECTIONS_VIA_SYMBOLS ]
compat-version:  0.0
current-version: 0.0
has-UUID:        false
OS:              unknown
sections:
  - segment:         __TEXT
    section:         __text
    type:            S_REGULAR
    attributes:      [ S_ATTR_PURE_INSTRUCTIONS, S_ATTR_SOME_INSTRUCTIONS ]
    alignment:       4
    address:         0x0000000000000000
    content:         [ 0xFD, 0x7B, 0xBF, 0xA9, 0xFD, 0x03, 0x00, 0x91,
                       0x00, 0x00, 0x00, 0x90, 0x00, 0x00, 0x00, 0x91,
                       0x00, 0x00, 0x00, 0x94, 0x00, 0x00, 0x80, 0x52,
                       0xFD, 0x7B, 0xC1, 0xA8, 0xC0, 0x03, 0x5F, 0xD6 ]
    relocations:
      - offset:          0x00000010
        type:            ARM64_RELOC_BRANCH26
        length:          2
        pc-rel:          true
        extern:          true
        symbol:          6
      - offset:          0x0000000C
        type:            ARM64_RELOC_PAGEOFF12
        length:          2
        pc-rel:          false
        extern:          true
        symbol:          1
      - offset:          0x00000008
        type:            ARM64_RELOC_PAGE21
        length:          2
        pc-rel:          true
        extern:          true
        symbol:          1
  - segment:         __TEXT
    section:         __cstring
    type:            S_CSTRING_LITERALS
    attributes:      [  ]
    address:         0x0000000000000020
    content:         [ 0x48, 0x65, 0x6C, 0x6C, 0x6F, 0x20, 0x77, 0x6F,
                       0x72, 0x6C, 0x64, 0x00 ]
  - segment:         __LD
    section:         __compact_unwind
    type:            S_REGULAR
    attributes:      [  ]
    alignment:       8
    address:         0x0000000000000030
    content:         [ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                       0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
                       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                       0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 ]
    relocations:
      - offset:          0x00000000
        type:            ARM64_RELOC_UNSIGNED
        length:          3
        pc-rel:          false
        extern:          false
        symbol:          1
  - segment:         __TEXT
    section:         __eh_frame
    type:            S_COALESCED
    attributes:      [  ]
    alignment:       8
    address:         0x0000000000000050
    content:         [ 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
                       0x01, 0x7A, 0x52, 0x00, 0x01, 0x78, 0x1E, 0x01,
                       0x10, 0x0C, 0x1F, 0x00, 0x20, 0x00, 0x00, 0x00,
                       0x18, 0x00, 0x00, 0x00, 0x94, 0xFF, 0xFF, 0xFF,
                       0xFF, 0xFF, 0xFF, 0xFF, 0x20, 0x00, 0x00, 0x00,
                       0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x0E, 0x10,
                       0x9E, 0x01, 0x9D, 0x02, 0x00, 0x00, 0x00, 0x00 ]
local-symbols:
  - name:            ltmp0
    type:            N_SECT
    sect:            1
    value:           0x0000000000000000
  - name:            L_str
    type:            N_SECT
    sect:            2
    value:           0x0000000000000020
  - name:            ltmp1
    type:            N_SECT
    sect:            2
    value:           0x0000000000000020
  - name:            ltmp2
    type:            N_SECT
    sect:            3
    value:           0x0000000000000030
  - name:            ltmp3
    type:            N_SECT
    sect:            4
    value:           0x0000000000000050
global-symbols:
  - name:            __Z3fooi
    type:            N_SECT
    scope:           [ N_EXT ]
    sect:            1
    value:           0x0000000000000000
undefined-symbols:
  - name:            _puts
    type:            N_UNDF
    scope:           [ N_EXT ]
    value:           0x0000000000000000
page-size:       0x00000000
...