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llvm-project/clang/test/InstallAPI/mismatching-objc-class-symbols.test
Cyndy Ishida 4c18681a2d
[InstallAPI] Add support for aliased exports (#88750) 
Apple's ld supports alias_lists, described as
```
     -alias_list filename
             The specified filename contains a list of aliases. The symbol name and its alias are on one
             line, separated by whitespace.  Lines starting with # are ignored.
```
To handle this for installapi-produced TBD files, pass along the same
input and account for it in verification.
2024-04-18 07:39:21 -07:00

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; RUN: rm -rf %t
; RUN: split-file %s %t
; RUN: sed -e "s|DSTROOT|%/t|g" %t/inputs.json.in > %t/inputs.json
; RUN: yaml2obj %t/swift-objc-class.yaml -o %t/libswift-objc.dylib
// Try out dylib that only has 1 symbol for a ObjCClass, with no declarations in header.
; RUN: clang-installapi -target arm64-apple-macos14 -dynamiclib \
; RUN: -install_name tmp.dylib --verify-against=%t/libswift-objc.dylib \
; RUN: -I%t/usr/include %t/inputs.json -o %t/missing.tbd \
; RUN: --verify-mode=ErrorsAndWarnings 2>&1 | FileCheck --check-prefix MISSING_DECL %s
; RUN: llvm-readtapi --compare %t/missing.tbd %t/missing-expected.tbd
// Try out a dylib that only has 1 symbol for a ObjCClass,
// but a complete ObjCClass decl in header.
; RUN: clang-installapi -target arm64-apple-macos14 -dynamiclib \
; RUN: -install_name tmp.dylib --verify-against=%t/libswift-objc.dylib \
; RUN: -I%t/usr/include %t/inputs.json -o %t/mismatching.tbd \
; RUN: --verify-mode=Pedantic -DFULL_DECL 2>&1 | FileCheck --check-prefix MISMATCH_DECL %s
; RUN: llvm-readtapi -compare %t/mismatching.tbd %t/mismatching-expected.tbd
// Try out a dylib that only has 1 symbol for a ObjCClass, but is represented in header.
; RUN: clang-installapi -target arm64-apple-macos14 -dynamiclib \
; RUN: -install_name tmp.dylib --verify-against=%t/libswift-objc.dylib \
; RUN: -I%t/usr/include %t/inputs.json -o %t/matching.tbd \
; RUN: --verify-mode=Pedantic \
; RUN: -DHAS_META_DECL 2>&1 | FileCheck --allow-empty %s
; MISSING_DECL: violations found for arm64
; MISSING_DECL-NEXT: warning: no declaration was found for exported symbol 'Metaclass of Suggestion' in dynamic library
; MISMATCH_DECL: violations found for arm64-apple-macos14
; MISMATCH_DECL: warning: declaration has external linkage, but dynamic library doesn't have symbol 'Class of Suggestion'
; CHECK-NOT: error
; CHECK-NOT: warning
;--- usr/include/mismatch.h
#if HAS_META_DECL
int metaclass __asm("_OBJC_METACLASS_$_Suggestion");
#endif
#if FULL_DECL
@interface Suggestion
@end
#endif
;--- inputs.json.in
{
"headers": [ {
"path" : "DSTROOT/usr/include/mismatch.h",
"type" : "public"
}
],
"version": "3"
}
;--- missing-expected.tbd
--- !tapi-tbd
tbd-version: 4
targets: [ arm64-macos ]
flags: [ not_app_extension_safe ]
install-name: tmp.dylib
current-version: 0
compatibility-version: 0
...
;--- mismatching-expected.tbd
--- !tapi-tbd
tbd-version: 4
targets: [ arm64-macos ]
flags: [ not_app_extension_safe ]
install-name: tmp.dylib
current-version: 0
compatibility-version: 0
exports:
- targets: [ arm64-macos ]
objc-classes: [ Suggestion ]
...
;--- swift-objc-class.yaml
--- !mach-o
FileHeader:
magic: 0xFEEDFACF
cputype: 0x100000C
cpusubtype: 0x0
filetype: 0x6
ncmds: 13
sizeofcmds: 752
flags: 0x100085
reserved: 0x0
LoadCommands:
- cmd: LC_SEGMENT_64
cmdsize: 232
segname: __TEXT
vmaddr: 0
vmsize: 16384
fileoff: 0
filesize: 16384
maxprot: 5
initprot: 5
nsects: 2
flags: 0
Sections:
- sectname: __text
segname: __TEXT
addr: 0x330
size: 0
offset: 0x330
align: 0
reloff: 0x0
nreloc: 0
flags: 0x80000000
reserved1: 0x0
reserved2: 0x0
reserved3: 0x0
content: ''
- sectname: __const
segname: __TEXT
addr: 0x330
size: 1
offset: 0x330
align: 0
reloff: 0x0
nreloc: 0
flags: 0x0
reserved1: 0x0
reserved2: 0x0
reserved3: 0x0
content: '61'
- cmd: LC_SEGMENT_64
cmdsize: 72
segname: __LINKEDIT
vmaddr: 16384
vmsize: 416
fileoff: 16384
filesize: 416
maxprot: 1
initprot: 1
nsects: 0
flags: 0
- cmd: LC_DYLD_INFO_ONLY
cmdsize: 48
rebase_off: 0
rebase_size: 0
bind_off: 0
bind_size: 0
weak_bind_off: 0
weak_bind_size: 0
lazy_bind_off: 0
lazy_bind_size: 0
export_off: 16384
export_size: 40
- cmd: LC_SYMTAB
cmdsize: 24
symoff: 16432
nsyms: 2
stroff: 16464
strsize: 48
- cmd: LC_DYSYMTAB
cmdsize: 80
ilocalsym: 0
nlocalsym: 0
iextdefsym: 0
nextdefsym: 1
iundefsym: 1
nundefsym: 1
tocoff: 0
ntoc: 0
modtaboff: 0
nmodtab: 0
extrefsymoff: 0
nextrefsyms: 0
indirectsymoff: 0
nindirectsyms: 0
extreloff: 0
nextrel: 0
locreloff: 0
nlocrel: 0
- cmd: LC_ID_DYLIB
cmdsize: 40
dylib:
name: 24
timestamp: 0
current_version: 0
compatibility_version: 0
Content: tmp.dylib
ZeroPadBytes: 7
- cmd: LC_UUID
cmdsize: 24
uuid: 4C4C4443-5555-3144-A142-97179769CBE0
- cmd: LC_BUILD_VERSION
cmdsize: 32
platform: 1
minos: 917504
sdk: 983040
ntools: 1
Tools:
- tool: 4
version: 1245184
- cmd: LC_LOAD_DYLIB
cmdsize: 96
dylib:
name: 24
timestamp: 0
current_version: 197656576
compatibility_version: 19660800
Content: '/System/Library/Frameworks/Foundation.framework/Versions/C/Foundation'
ZeroPadBytes: 3
- cmd: LC_LOAD_DYLIB
cmdsize: 56
dylib:
name: 24
timestamp: 0
current_version: 88473600
compatibility_version: 65536
Content: '/usr/lib/libSystem.B.dylib'
ZeroPadBytes: 6
- cmd: LC_FUNCTION_STARTS
cmdsize: 16
dataoff: 16424
datasize: 8
- cmd: LC_DATA_IN_CODE
cmdsize: 16
dataoff: 16432
datasize: 0
- cmd: LC_CODE_SIGNATURE
cmdsize: 16
dataoff: 16512
datasize: 288
LinkEditData:
ExportTrie:
TerminalSize: 0
NodeOffset: 0
Name: ''
Flags: 0x0
Address: 0x0
Other: 0x0
ImportName: ''
Children:
- TerminalSize: 3
NodeOffset: 32
Name: '_OBJC_METACLASS_$_Suggestion'
Flags: 0x0
Address: 0x330
Other: 0x0
ImportName: ''
NameList:
- n_strx: 2
n_type: 0xF
n_sect: 2
n_desc: 0
n_value: 816
- n_strx: 31
n_type: 0x1
n_sect: 0
n_desc: 512
n_value: 0
StringTable:
- ' '
- '_OBJC_METACLASS_$_Suggestion'
- dyld_stub_binder
FunctionStarts: [ 0x330 ]
...
// Generated from:
// xcrun -sdk macosx clang tmp.c -dynamiclib -install_name tmp.dylib
// tmp.c:
// __attribute__((visibility("default")))
// const char Meta __asm("_OBJC_METACLASS_$_Suggestion") = 'a';
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