28ac19c9ee
I faced that when tried to link FreeBSD kernel. It was "duplicate symbol: _edata in (internal) and (internal)" error. _data was a shared symbol that came from hack.so. At first it was replaced with DefinedRegular by the code disabled in this patch and later when script tried to define the same symbol - the error was shown. In the same situation (as given in testcase) ld defines them as UND. gold defines as ABS with zero value. Patch just disables any operations of creating these symbols if script do layout. Differential revision: https://reviews.llvm.org/D23206 llvm-svn: 277986
34 lines
827 B
ArmAsm
34 lines
827 B
ArmAsm
// Should set the value of the "_end" symbol to the end of the data segment.
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// REQUIRES: x86
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// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
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// By default, the .bss section is the latest section of the data segment.
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// RUN: ld.lld %t.o -o %t
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// RUN: llvm-readobj -sections -symbols %t | FileCheck %s --check-prefix=DEFAULT
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// DEFAULT: Sections [
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// DEFAULT: Name: .bss
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// DEFAULT-NEXT: Type:
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// DEFAULT-NEXT: Flags [
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// DEFAULT-NEXT: SHF_ALLOC
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// DEFAULT-NEXT: SHF_WRITE
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// DEFAULT-NEXT: ]
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// DEFAULT-NEXT: Address: 0x12002
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// DEFAULT-NEXT: Offset:
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// DEFAULT-NEXT: Size: 6
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// DEFAULT: ]
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// DEFAULT: Symbols [
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// DEFAULT: Name: _end
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// DEFAULT-NEXT: Value: 0x12008
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// DEFAULT: ]
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.global _start,_end
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.text
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_start:
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nop
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.data
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.word 1
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.bss
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.space 6
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