686d8ce1ab
This commit adds definitions for the `dyld_chained_import*` structs. The imports array is now printed with `llvm-otool -chained_fixups`. This completes this option's implementation. A slight difference from cctools otool is that we don't yet dump the raw bytes of the imports entries. When Apple's effort to upstream their chained fixups code continues, we'll replace this code with the then-upstreamed code. But we need something in the meantime for testing ld64.lld's chained fixups code. Differential Revision: https://reviews.llvm.org/D131982
109 lines
3.8 KiB
Plaintext
109 lines
3.8 KiB
Plaintext
RUN: llvm-objdump -p %p/Inputs/chained-fixups.macho-x86_64 | FileCheck %s
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RUN: llvm-otool -l %p/Inputs/chained-fixups.macho-x86_64 | FileCheck %s
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CHECK: LC_DYLD_CHAINED_FIXUPS
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CHECK: LC_DYLD_EXPORTS_TRIE
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RUN: llvm-objdump --macho --chained-fixups %p/Inputs/chained-fixups.macho-x86_64 | \
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RUN: FileCheck --check-prefix=DETAILS -DNAME=%p/Inputs/chained-fixups.macho-x86_64 %s
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RUN: llvm-otool -chained_fixups %p/Inputs/chained-fixups.macho-x86_64 | \
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RUN: FileCheck --check-prefix=DETAILS -DNAME=%p/Inputs/chained-fixups.macho-x86_64 %s
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DETAILS: [[NAME]]:
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DETAILS-NEXT: chained fixups header (LC_DYLD_CHAINED_FIXUPS)
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DETAILS-NEXT: fixups_version = 0
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DETAILS-NEXT: starts_offset = 32
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DETAILS-NEXT: imports_offset = 112
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DETAILS-NEXT: symbols_offset = 132
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DETAILS-NEXT: imports_count = 5
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DETAILS-NEXT: imports_format = 1 (DYLD_CHAINED_IMPORT)
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DETAILS-NEXT: symbols_format = 0
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DETAILS-NEXT: chained starts in image
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DETAILS-NEXT: seg_count = 4
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DETAILS-NEXT: seg_offset[0] = 0 (__TEXT)
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DETAILS-NEXT: seg_offset[1] = 24 (__DATA_CONST)
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DETAILS-NEXT: seg_offset[2] = 48 (__DATA)
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DETAILS-NEXT: seg_offset[3] = 0 (__LINKEDIT)
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DETAILS-NEXT: chained starts in segment 1 (__DATA_CONST)
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DETAILS-NEXT: size = 24
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DETAILS-NEXT: page_size = 0x1000
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DETAILS-NEXT: pointer_format = 6 (DYLD_CHAINED_PTR_64_OFFSET)
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DETAILS-NEXT: segment_offset = 0x3e0
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DETAILS-NEXT: max_valid_pointer = 0
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DETAILS-NEXT: page_count = 1
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DETAILS-NEXT: page_start[0] = 0
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DETAILS-NEXT: chained starts in segment 2 (__DATA)
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DETAILS-NEXT: size = 30
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DETAILS-NEXT: page_size = 0x1000
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DETAILS-NEXT: pointer_format = 6 (DYLD_CHAINED_PTR_64_OFFSET)
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DETAILS-NEXT: segment_offset = 0x3f0
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DETAILS-NEXT: max_valid_pointer = 0
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DETAILS-NEXT: page_count = 4
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DETAILS-NEXT: page_start[0] = 0
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DETAILS-NEXT: page_start[1] = 32
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DETAILS-NEXT: page_start[2] = 65535 (DYLD_CHAINED_PTR_START_NONE)
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DETAILS-NEXT: page_start[3] = 32
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DETAILS-NEXT: dyld chained import[0]
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DETAILS-NEXT: lib_ordinal = -2 (flat-namespace)
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DETAILS-NEXT: weak_import = 0
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DETAILS-NEXT: name_offset = 1 (_dynamicLookup)
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DETAILS-NEXT: dyld chained import[1]
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DETAILS-NEXT: lib_ordinal = 1 (libdylib)
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DETAILS-NEXT: weak_import = 1
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DETAILS-NEXT: name_offset = 16 (_weakImport)
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DETAILS-NEXT: dyld chained import[2]
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DETAILS-NEXT: lib_ordinal = 1 (libdylib)
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DETAILS-NEXT: weak_import = 0
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DETAILS-NEXT: name_offset = 28 (_dylib)
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DETAILS-NEXT: dyld chained import[3]
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DETAILS-NEXT: lib_ordinal = -3 (weak)
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DETAILS-NEXT: weak_import = 0
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DETAILS-NEXT: name_offset = 35 (_weakLocal)
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DETAILS-NEXT: dyld chained import[4]
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DETAILS-NEXT: lib_ordinal = -3 (weak)
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DETAILS-NEXT: weak_import = 0
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DETAILS-NEXT: name_offset = 46 (_weak)
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## This test checks that the output is identical to that of cctools-1001.2 (XCode 14)
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## FIXME: Print encoded values of the dyld_chained_import* entries
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##
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## The input was generated from the following files:
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##
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## --- dylib.s:
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## .data
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## .globl _weak, _dylib, _weakImport
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## .weak_definition _weak
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## _weak:
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## _dylib:
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## _weakImport:
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##
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## $ clang --target=x86_64-apple-macos12 -dynamiclib dylib.s -o libdylib.dylib
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##
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## --- chained-fixups.s:
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## .global _local, _weak, _weakLocal, _dylib, _weakImport, _dynamicLookup
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## .weak_definition _weakLocal
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## .weak_reference _weakImport
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##
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## .data
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## .p2align 4
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## _local:
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## _weakLocal:
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## .quad _local
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## .space 8
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## .quad _weak
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## .space 4096
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## .p2align 4
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## .quad _weakLocal
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## .space 8172
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## .p2align 4
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## .quad _dylib
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## .quad _dylib + 42
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##
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## .section __DATA_CONST,__const
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## .p2align 4
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## .quad _weakImport
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## .quad _dynamicLookup
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##
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## $ clang --target=x86_64-apple-macos12 -dynamiclib -L. -ldylib chained-fixups.s \
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## -o chained-fixups.macho-x86_64 -Wl,-segalign,0x10 -Wl,-U,_dynamicLookup
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