a8f9f08018
The ELF spec says > If the sh_flags field for this section header includes the attribute SHF_INFO_LINK, then this member represents a section header table index. Set SHF_INFO_LINK so that binary manipulation tools know that sh_info is a section header table index instead of (the number of local symbols in the case of SHT_SYMTAB/SHT_DYNSYM). We have already added SHF_INFO_LINK for --emit-relocs retained SHT_REL[A]. For example, we can teach llvm-objcopy to preserve the section index of the sh_info referenced section if SHF_INFO_LINK is set. (GNU objcopy recognizes .rel[a].plt and updates sh_info even if SHF_INFO_LINK is not set). Reviewed By: grimar, psmith Differential Revision: https://reviews.llvm.org/D89828
62 lines
2.0 KiB
ArmAsm
62 lines
2.0 KiB
ArmAsm
// REQUIRES: x86
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
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// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/dynamic-reloc.s -o %t3.o
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// RUN: ld.lld -shared %t2.o -soname=so -o %t2.so
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// RUN: ld.lld %t.o %t3.o %t2.so -o %t
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// RUN: llvm-readobj --dynamic-table -r -S %t | FileCheck %s
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// CHECK: Index: 1
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// CHECK-NEXT: Name: .dynsym
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// CHECK: Name: .rela.plt
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// CHECK-NEXT: Type: SHT_RELA
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: SHF_ALLOC
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// CHECK-NEXT: SHF_INFO_LINK
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: [[RELAADDR:.*]]
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// CHECK-NEXT: Offset:
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// CHECK-NEXT: Size: [[RELASIZE:.*]]
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// CHECK-NEXT: Link: 1
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// CHECK-NEXT: Info: 9
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// CHECK-NEXT: AddressAlignment: 8
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// CHECK-NEXT: EntrySize: 24
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// CHECK: Name: .text
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// CHECK-NEXT: Type: SHT_PROGBITS
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// CHECK-NEXT: Flags [
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// CHECK-NEXT: SHF_ALLOC
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// CHECK-NEXT: SHF_EXECINSTR
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// CHECK-NEXT: ]
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// CHECK: DynamicSection [
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// CHECK-NEXT: Tag Type Name/Value
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// CHECK-NEXT: 0x0000000000000001 NEEDED Shared library: [so]
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// CHECK-NEXT: 0x0000000000000015 DEBUG 0x0
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// CHECK-NEXT: 0x0000000000000017 JMPREL
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// CHECK-NEXT: 0x0000000000000002 PLTRELSZ 24 (bytes)
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// CHECK-NEXT: 0x0000000000000003 PLTGOT
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// CHECK-NEXT: 0x0000000000000014 PLTREL RELA
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// CHECK-NEXT: 0x0000000000000006 SYMTAB
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// CHECK-NEXT: 0x000000000000000B SYMENT 24 (bytes)
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// CHECK-NEXT: 0x0000000000000005 STRTAB
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// CHECK-NEXT: 0x000000000000000A STRSZ
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// CHECK-NEXT: 0x000000006FFFFEF5 GNU_HASH
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// CHECK-NEXT: 0x0000000000000004 HASH
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// CHECK-NEXT: 0x0000000000000000 NULL 0x0
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// CHECK-NEXT: ]
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// CHECK: Relocations [
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// CHECK-NEXT: Section ({{.*}}) .rela.plt {
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// CHECK-NEXT: R_X86_64_JUMP_SLOT bar 0x0
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// CHECK-NEXT: }
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// CHECK-NEXT: ]
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.global _start
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_start:
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.quad bar + 0x42
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.weak foo
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.quad foo
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call main
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