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