025bb56a86
With this patch, lld creates a .note.GNU_stack and adds that to an output file if it is creating a re-linkable object file (i.e. if -r is given). If we don't do this, and if you use GNU linkers as a final linker, they create an executable whose stack area is executable, which is considered pretty bad these days. Differential Revision: https://reviews.llvm.org/D51400 llvm-svn: 340902
41 lines
1.2 KiB
ArmAsm
41 lines
1.2 KiB
ArmAsm
# REQUIRES: x86
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# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t1.o
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# RUN: ld.lld -r %t1.o -o %t
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# RUN: llvm-readobj -file-headers -sections -program-headers -symbols -r %t | FileCheck %s
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## We check here that .bss does not occupy the space in file.
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## If it would, the SectionHeaderOffset would have offset about 5 megabytes.
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# CHECK: ElfHeader {
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# CHECK-NEXT: Ident {
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# CHECK-NEXT: Magic: (7F 45 4C 46)
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# CHECK-NEXT: Class: 64-bit
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# CHECK-NEXT: DataEncoding: LittleEndian
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# CHECK-NEXT: FileVersion: 1
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# CHECK-NEXT: OS/ABI: SystemV
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# CHECK-NEXT: ABIVersion: 0
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# CHECK-NEXT: Unused: (00 00 00 00 00 00 00)
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# CHECK-NEXT: }
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# CHECK-NEXT: Type: Relocatable
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# CHECK-NEXT: Machine: EM_X86_64
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# CHECK-NEXT: Version:
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# CHECK-NEXT: Entry:
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# CHECK-NEXT: ProgramHeaderOffset:
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# CHECK-NEXT: SectionHeaderOffset: 0xE8
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# CHECK-NEXT: Flags [
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# CHECK-NEXT: ]
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# CHECK-NEXT: HeaderSize:
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# CHECK-NEXT: ProgramHeaderEntrySize:
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# CHECK-NEXT: ProgramHeaderCount:
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# CHECK-NEXT: SectionHeaderEntrySize:
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# CHECK-NEXT: SectionHeaderCount:
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# CHECK-NEXT: StringTableSectionIndex:
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# CHECK-NEXT: }
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.text
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.globl _start
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_start:
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nop
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.bss
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.space 5242880
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