## This test is based on a trimmed down version of the binary built as follows:
## a.c:
## __attribute__((used)) static int PrivateSymbol;
## __attribute__((visibility("hidden"))) int PrivateExternalSymbol;
## __attribute__((used)) int CommonSymbol;
## extern int UndefinedExternalSymbol;
## // Defined external symbol
## int main() {
## return PrivateSymbol + PrivateExternalSymbol + CommonSymbol +
## UndefinedExternalSymbol;
## }
## build command:
## clang -g -fno-exceptions -fno-unwind-tables -undefined dynamic_lookup \
## a.c -o a.exe
## All the load commands except the symbol table and its transitive dependencies
## have been removed.
# RUN: yaml2obj %s -o %t
# RUN: llvm-objcopy %t %t.copy
# RUN: cmp %t %t.copy
## Verify that the binary is valid and check its symbol table.
# RUN: llvm-readobj --symbols %t.copy | FileCheck %s
# CHECK: Symbols [
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _PrivateSymbol (170)
# CHECK-NEXT: Type: Section (0xE)
# CHECK-NEXT: Section: __bss (0x4)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x100001008
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _PrivateExternalSymbol (122)
# CHECK-NEXT: PrivateExtern
# CHECK-NEXT: Type: Section (0xE)
# CHECK-NEXT: Section: __common (0x5)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x100001010
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: /Users/aaaaaaaa/ (192)
# CHECK-NEXT: Type: SymDebugTable (0x64)
# CHECK-NEXT: Section: (0x0)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: main.c (185)
# CHECK-NEXT: Type: SymDebugTable (0x64)
# CHECK-NEXT: Section: (0x0)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: /var/folders/1d/zyfdpp7j2995h5hqspjy28bc0000gn/T/main-c5ac21.o (39)
# CHECK-NEXT: Type: SymDebugTable (0x66)
# CHECK-NEXT: Section: (0x3)
# CHECK-NEXT: RefType: ReferenceFlagUndefinedLazy (0x1)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x5EA74C81
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: (208)
# CHECK-NEXT: Type: SymDebugTable (0x2E)
# CHECK-NEXT: Section: (0x1)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x100000F80
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _main (102)
# CHECK-NEXT: Type: SymDebugTable (0x24)
# CHECK-NEXT: Section: (0x1)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x100000F80
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: (208)
# CHECK-NEXT: Type: SymDebugTable (0x24)
# CHECK-NEXT: Section: (0x0)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x2D
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: (208)
# CHECK-NEXT: Type: SymDebugTable (0x4E)
# CHECK-NEXT: Section: (0x1)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x2D
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _PrivateSymbol (170)
# CHECK-NEXT: Type: SymDebugTable (0x26)
# CHECK-NEXT: Section: (0x4)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x100001008
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _CommonSymbol (108)
# CHECK-NEXT: Type: SymDebugTable (0x20)
# CHECK-NEXT: Section: (0x0)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _PrivateExternalSymbol (122)
# CHECK-NEXT: Type: SymDebugTable (0x20)
# CHECK-NEXT: Section: (0x0)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: (208)
# CHECK-NEXT: Type: SymDebugTable (0x64)
# CHECK-NEXT: Section: (0x1)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _CommonSymbol (108)
# CHECK-NEXT: Extern
# CHECK-NEXT: Type: Section (0xE)
# CHECK-NEXT: Section: __common (0x5)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x10000100C
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: __mh_execute_header (19)
# CHECK-NEXT: Extern
# CHECK-NEXT: Type: Section (0xE)
# CHECK-NEXT: Section: __text (0x1)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x10)
# CHECK-NEXT: ReferencedDynamically (0x10)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x100000000
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _main (102)
# CHECK-NEXT: Extern
# CHECK-NEXT: Type: Section (0xE)
# CHECK-NEXT: Section: __text (0x1)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x0)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x100000F80
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: _UndefinedExternalSymbol (145)
# CHECK-NEXT: Extern
# CHECK-NEXT: Type: Undef (0x0)
# CHECK-NEXT: Section: (0x0)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0xFE00)
# CHECK-NEXT: AltEntry (0x200)
# CHECK-NEXT: ColdFunc (0x400)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: Symbol {
# CHECK-NEXT: Name: dyld_stub_binder (2)
# CHECK-NEXT: Extern
# CHECK-NEXT: Type: Undef (0x0)
# CHECK-NEXT: Section: (0x0)
# CHECK-NEXT: RefType: UndefinedNonLazy (0x0)
# CHECK-NEXT: Flags [ (0x100)
# CHECK-NEXT: SymbolResolver (0x100)
# CHECK-NEXT: ]
# CHECK-NEXT: Value: 0x0
# CHECK-NEXT: }
# CHECK-NEXT: ]
--- !mach-o
FileHeader:
magic: 0xFEEDFACF
cputype: 0x01000007
cpusubtype: 0x80000003
filetype: 0x00000002
ncmds: 5
sizeofcmds: 720
flags: 0x00200085
reserved: 0x00000000
LoadCommands:
- cmd: LC_SEGMENT_64
cmdsize: 232
segname: __TEXT
vmaddr: 4294967296
vmsize: 4096
fileoff: 0
filesize: 4096
maxprot: 5
initprot: 5
nsects: 2
flags: 0
Sections:
- sectname: __text
segname: __TEXT
addr: 0x0000000100000F80
size: 45
offset: 0x00000F80
align: 4
reloff: 0x00000000
nreloc: 0
flags: 0x80000400
reserved1: 0x00000000
reserved2: 0x00000000
reserved3: 0x00000000
content: 554889E5488B0575000000488D0D7A000000C745FC000000008B156900000003156B0000000311031089D05DC3
- sectname: __unwind_info
segname: __TEXT
addr: 0x0000000100000FB0
size: 72
offset: 0x00000FB0
align: 2
reloff: 0x00000000
nreloc: 0
flags: 0x00000000
reserved1: 0x00000000
reserved2: 0x00000000
reserved3: 0x00000000
content: 010000001C000000000000001C000000000000001C00000002000000800F00003400000034000000AE0F00000000000034000000030000000C000100100001000000000000000000
- cmd: LC_SEGMENT_64
cmdsize: 312
segname: __DATA
vmaddr: 4294971392
vmsize: 4096
fileoff: 4096
filesize: 4096
maxprot: 3
initprot: 3
nsects: 3
flags: 0
Sections:
- sectname: __got
segname: __DATA
addr: 0x0000000100001000
size: 8
offset: 0x00001000
align: 3
reloff: 0x00000000
nreloc: 0
flags: 0x00000006
reserved1: 0x00000000
reserved2: 0x00000000
reserved3: 0x00000000
content: '0000000000000000'
- sectname: __bss
segname: __DATA
addr: 0x0000000100001008
size: 4
offset: 0x00000000
align: 2
reloff: 0x00000000
nreloc: 0
flags: 0x00000001
reserved1: 0x00000000
reserved2: 0x00000000
reserved3: 0x00000000
- sectname: __common
segname: __DATA
addr: 0x000000010000100C
size: 8
offset: 0x00000000
align: 2
reloff: 0x00000000
nreloc: 0
flags: 0x00000001
reserved1: 0x00000000
reserved2: 0x00000000
reserved3: 0x00000000
- cmd: LC_SEGMENT_64
cmdsize: 72
segname: __LINKEDIT
vmaddr: 4294975488
vmsize: 4096
fileoff: 8192
filesize: 508
maxprot: 1
initprot: 1
nsects: 0
flags: 0
- cmd: LC_SYMTAB
cmdsize: 24
symoff: 8192
nsyms: 18
stroff: 8484
strsize: 216
- cmd: LC_DYSYMTAB
cmdsize: 80
ilocalsym: 0
nlocalsym: 13
iextdefsym: 13
nextdefsym: 3
iundefsym: 16
nundefsym: 2
tocoff: 0
ntoc: 0
modtaboff: 0
nmodtab: 0
extrefsymoff: 0
nextrefsyms: 0
indirectsymoff: 8480
nindirectsyms: 1
extreloff: 0
nextrel: 0
locreloff: 0
nlocrel: 0
LinkEditData:
NameList:
- n_strx: 170
n_type: 0x0E
n_sect: 4
n_desc: 0
n_value: 4294971400
- n_strx: 122
n_type: 0x1E
n_sect: 5
n_desc: 0
n_value: 4294971408
- n_strx: 192
n_type: 0x64
n_sect: 0
n_desc: 0
n_value: 0
- n_strx: 185
n_type: 0x64
n_sect: 0
n_desc: 0
n_value: 0
- n_strx: 39
n_type: 0x66
n_sect: 3
n_desc: 1
n_value: 1588022401
- n_strx: 208
n_type: 0x2E
n_sect: 1
n_desc: 0
n_value: 4294971264
- n_strx: 102
n_type: 0x24
n_sect: 1
n_desc: 0
n_value: 4294971264
- n_strx: 208
n_type: 0x24
n_sect: 0
n_desc: 0
n_value: 45
- n_strx: 208
n_type: 0x4E
n_sect: 1
n_desc: 0
n_value: 45
- n_strx: 170
n_type: 0x26
n_sect: 4
n_desc: 0
n_value: 4294971400
- n_strx: 108
n_type: 0x20
n_sect: 0
n_desc: 0
n_value: 0
- n_strx: 122
n_type: 0x20
n_sect: 0
n_desc: 0
n_value: 0
- n_strx: 208
n_type: 0x64
n_sect: 1
n_desc: 0
n_value: 0
- n_strx: 108
n_type: 0x0F
n_sect: 5
n_desc: 0
n_value: 4294971404
- n_strx: 19
n_type: 0x0F
n_sect: 1
n_desc: 16
n_value: 4294967296
- n_strx: 102
n_type: 0x0F
n_sect: 1
n_desc: 0
n_value: 4294971264
- n_strx: 145
n_type: 0x01
n_sect: 0
n_desc: 65024
n_value: 0
- n_strx: 2
n_type: 0x01
n_sect: 0
n_desc: 256
n_value: 0
StringTable:
- ' '
- dyld_stub_binder
- __mh_execute_header
- '/var/folders/1d/zyfdpp7j2995h5hqspjy28bc0000gn/T/main-c5ac21.o'
- _main
- _CommonSymbol
- _PrivateExternalSymbol
- _UndefinedExternalSymbol
- _PrivateSymbol
- main.c
- '/Users/aaaaaaaa/'
- ''
- ''
- ''
- ''
- ''
- ''
- ''
...