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Reapply fixed r253967.

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llvm-svn: 253971
This commit is contained in:
George Rimar 2015-11-24 10:15:50 +00:00
parent 11721ce810
commit e3336c0be6
17 changed files with 350 additions and 53 deletions
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1
lld/ELF/Config.h
View File

@ -67,6 +67,7 @@ struct Configuration {
bool ZNodelete;
bool ZNow;
bool ZOrigin;
bool ZRelro;
ELFKind EKind = ELFNoneKind;
uint16_t EMachine = llvm::ELF::EM_NONE;
uint64_t EntryAddr = -1;

1
lld/ELF/Driver.cpp
View File

@ -176,6 +176,7 @@ void LinkerDriver::createFiles(opt::InputArgList &Args) {
Config->ZNodelete = hasZOption(Args, "nodelete");
Config->ZNow = hasZOption(Args, "now");
Config->ZOrigin = hasZOption(Args, "origin");
Config->ZRelro = !hasZOption(Args, "norelro");
if (auto *Arg = Args.getLastArg(OPT_O)) {
StringRef Val = Arg->getValue();

54
lld/ELF/Writer.cpp
View File

@ -47,6 +47,8 @@ private:
iterator_range<const Elf_Rel_Impl<ELFT, isRela> *> Rels);
void scanRelocs(InputSection<ELFT> &C);
void scanRelocs(InputSectionBase<ELFT> &S, const Elf_Shdr &RelSec);
void updateRelro(Elf_Phdr *Cur, Elf_Phdr *GnuRelroPhdr,
OutputSectionBase<ELFT> *Sec, uintX_t VA);
void assignAddresses();
void buildSectionMap();
void openFile(StringRef OutputPath);
@ -81,6 +83,7 @@ private:
uintX_t VA, uintX_t Size, uintX_t Align);
void copyPhdr(Elf_Phdr *PH, OutputSectionBase<ELFT> *From);
bool HasRelro = false;
SymbolTable<ELFT> &Symtab;
std::vector<Elf_Phdr> Phdrs;
@ -353,6 +356,26 @@ static int getPPC64SectionRank(StringRef SectionName) {
.Default(1);
}
template <class ELFT> static bool isRelroSection(OutputSectionBase<ELFT> *Sec) {
typename OutputSectionBase<ELFT>::uintX_t Flags = Sec->getFlags();
if (!(Flags & SHF_ALLOC) || !(Flags & SHF_WRITE))
return false;
uint32_t Type = Sec->getType();
if ((Flags & SHF_TLS) || (Type == SHT_INIT_ARRAY || Type == SHT_FINI_ARRAY ||
Type == SHT_PREINIT_ARRAY))
return true;
if (Sec == Out<ELFT>::GotPlt)
return Config->ZNow;
if (Sec == Out<ELFT>::Dynamic || Sec == Out<ELFT>::Got)
return true;
StringRef Name = Sec->getName();
StringRef WhiteList[] = {".data.rel.ro", ".ctors", ".dtors", ".jcr",
".eh_frame"};
return (std::find(std::begin(WhiteList), std::end(WhiteList), Name) !=
std::end(WhiteList));
}
// Output section ordering is determined by this function.
template <class ELFT>
static bool compareOutputSections(OutputSectionBase<ELFT> *A,
@ -409,6 +432,12 @@ static bool compareOutputSections(OutputSectionBase<ELFT> *A,
if (AIsNoBits != BIsNoBits)
return BIsNoBits;
// We place RelRo section before plain r/w ones.
bool AIsRelRo = isRelroSection(A);
bool BIsRelRo = isRelroSection(B);
if (AIsRelRo != BIsRelRo)
return AIsRelRo;
// Some architectures have additional ordering restrictions for sections
// within the same PT_LOAD.
if (Config->EMachine == EM_PPC64)
@ -724,8 +753,10 @@ template <class ELFT> void Writer<ELFT>::createSections() {
std::stable_sort(OutputSections.begin(), OutputSections.end(),
compareSections<ELFT>);
for (unsigned I = 0, N = OutputSections.size(); I < N; ++I)
for (unsigned I = 0, N = OutputSections.size(); I < N; ++I) {
OutputSections[I]->SectionIndex = I + 1;
HasRelro |= (Config->ZRelro && isRelroSection(OutputSections[I]));
}
for (OutputSectionBase<ELFT> *Sec : OutputSections)
Out<ELFT>::ShStrTab->add(Sec->getName());
@ -793,6 +824,18 @@ static uint32_t toPhdrFlags(uint64_t Flags) {
return Ret;
}
template <class ELFT>
void Writer<ELFT>::updateRelro(Elf_Phdr *Cur, Elf_Phdr *GnuRelroPhdr,
OutputSectionBase<ELFT> *Sec, uintX_t VA) {
if (!Config->ZRelro || !(Cur->p_flags & PF_W) || !isRelroSection(Sec))
return;
if (!GnuRelroPhdr->p_type)
setPhdr(GnuRelroPhdr, PT_GNU_RELRO, PF_R, Cur->p_offset, Cur->p_vaddr,
VA - Cur->p_vaddr, 1 /*p_align*/);
GnuRelroPhdr->p_filesz = VA - Cur->p_vaddr;
GnuRelroPhdr->p_memsz = VA - Cur->p_vaddr;
}
// Visits all sections to create PHDRs and to assign incremental,
// non-overlapping addresses to output sections.
template <class ELFT> void Writer<ELFT>::assignAddresses() {
@ -819,6 +862,7 @@ template <class ELFT> void Writer<ELFT>::assignAddresses() {
setPhdr(&Phdrs[++PhdrIdx], PT_LOAD, PF_R, 0, Target->getVAStart(), FileOff,
Target->getPageSize());
Elf_Phdr GnuRelroPhdr = {};
Elf_Phdr TlsPhdr{};
uintX_t ThreadBSSOffset = 0;
// Create phdrs as we assign VAs and file offsets to all output sections.
@ -852,6 +896,7 @@ template <class ELFT> void Writer<ELFT>::assignAddresses() {
VA = RoundUpToAlignment(VA, Sec->getAlign());
Sec->setVA(VA);
VA += Sec->getSize();
updateRelro(&Phdrs[PhdrIdx], &GnuRelroPhdr, Sec, VA);
}
}
@ -881,6 +926,11 @@ template <class ELFT> void Writer<ELFT>::assignAddresses() {
copyPhdr(PH, Out<ELFT>::Dynamic);
}
if (HasRelro) {
Elf_Phdr *PH = &Phdrs[++PhdrIdx];
*PH = GnuRelroPhdr;
}
// PT_GNU_STACK is a special section to tell the loader to make the
// pages for the stack non-executable.
if (!Config->ZExecStack) {
@ -932,6 +982,8 @@ template <class ELFT> int Writer<ELFT>::getPhdrsNum() const {
}
if (Tls)
++I;
if (HasRelro)
++I;
return I;
}

6
lld/test/ELF/eh-frame-merge.s
View File

@ -35,9 +35,9 @@
// CHECK-NEXT: SectionData (
// CHECK-NEXT: 0000: 14000000 00000000 017A5200 01781001 |
// CHECK-NEXT: 0010: 1B0C0708 90010000 10000000 1C000000 |
// CHECK-NEXT: 0020: 880E0000 01000000 00000000 10000000 |
// CHECK-NEXT: 0030: 30000000 760E0000 02000000 00000000 |
// CHECK-NEXT: 0040: 10000000 44000000 610E0000 01000000 |
// CHECK-NEXT: 0020: 500E0000 01000000 00000000 10000000 |
// CHECK-NEXT: 0030: 30000000 3E0E0000 02000000 00000000 |
// CHECK-NEXT: 0040: 10000000 44000000 290E0000 01000000 |
// CHECK-NEXT: 0050: 00000000 |
// CHECK-NEXT: )

4
lld/test/ELF/gnu-hash-table.s
View File

@ -149,8 +149,8 @@
# PPC64-NEXT: Flags [
# PPC64-NEXT: SHF_ALLOC
# PPC64-NEXT: ]
# PPC64-NEXT: Address: 0x1B8
# PPC64-NEXT: Offset: 0x1B8
# PPC64-NEXT: Address: 0x1F0
# PPC64-NEXT: Offset: 0x1F0
# PPC64-NEXT: Size: 36
# PPC64-NEXT: Link: 1
# PPC64-NEXT: Info: 0

6
lld/test/ELF/got-aarch64.s
View File

@ -10,7 +10,7 @@
// CHECK-NEXT: SHF_ALLOC
// CHECK-NEXT: SHF_WRITE
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x2098
// CHECK-NEXT: Address: 0x2090
// CHECK-NEXT: Offset:
// CHECK-NEXT: Size: 8
// CHECK-NEXT: Link: 0
@ -19,7 +19,7 @@
// CHECK: Relocations [
// CHECK-NEXT: Section ({{.*}}) .rela.dyn {
// CHECK-NEXT: 0x2098 R_AARCH64_GLOB_DAT dat 0x0
// CHECK-NEXT: 0x2090 R_AARCH64_GLOB_DAT dat 0x0
// CHECK-NEXT: }
// CHECK-NEXT: ]
@ -28,7 +28,7 @@
// DISASM: main:
// DISASM-NEXT: 1000: {{.*}} adrp x0, #4096
// DISASM-NEXT: 1004: {{.*}} ldr x0, [x0, #152]
// DISASM-NEXT: 1004: {{.*}} ldr x0, [x0, #144]
.global main,foo,dat
.text

4
lld/test/ELF/merge-shared.s
View File

@ -17,10 +17,10 @@
// CHECK-NEXT: SHF_ALLOC
// CHECK-NEXT: SHF_MERGE
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x158
// CHECK-NEXT: Address: 0x190
// CHECK: Relocations [
// CHECK-NEXT: Section ({{.*}}) .rela.dyn {
// CHECK-NEXT: 0x{{.*}} R_X86_64_RELATIVE - 0x15A
// CHECK-NEXT: 0x{{.*}} R_X86_64_RELATIVE - 0x192
// CHECK-NEXT: }
// CHECK-NEXT: ]

18
lld/test/ELF/merge-string.s
View File

@ -26,8 +26,8 @@ zed:
// CHECK-NEXT: SHF_MERGE
// CHECK-NEXT: SHF_STRINGS
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x158
// CHECK-NEXT: Offset: 0x158
// CHECK-NEXT: Address: 0x190
// CHECK-NEXT: Offset: 0x190
// CHECK-NEXT: Size: 4
// CHECK-NEXT: Link: 0
// CHECK-NEXT: Info: 0
@ -44,8 +44,8 @@ zed:
// NOTAIL-NEXT: SHF_MERGE
// NOTAIL-NEXT: SHF_STRINGS
// NOTAIL-NEXT: ]
// NOTAIL-NEXT: Address: 0x158
// NOTAIL-NEXT: Offset: 0x158
// NOTAIL-NEXT: Address: 0x190
// NOTAIL-NEXT: Offset: 0x190
// NOTAIL-NEXT: Size: 7
// NOTAIL-NEXT: Link: 0
// NOTAIL-NEXT: Info: 0
@ -62,8 +62,8 @@ zed:
// CHECK-NEXT: SHF_MERGE
// CHECK-NEXT: SHF_STRINGS
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x15C
// CHECK-NEXT: Offset: 0x15C
// CHECK-NEXT: Address: 0x194
// CHECK-NEXT: Offset: 0x194
// CHECK-NEXT: Size: 4
// CHECK-NEXT: Link: 0
// CHECK-NEXT: Info: 0
@ -75,11 +75,11 @@ zed:
// CHECK: Name: bar
// CHECK-NEXT: Value: 0x159
// CHECK-NEXT: Value: 0x191
// CHECK: Name: foo
// CHECK-NEXT: Value: 0x158
// CHECK-NEXT: Value: 0x190
// CHECK: Name: zed
// CHECK-NEXT: Value: 0x15C
// CHECK-NEXT: Value: 0x194
// CHECK-NEXT: Size: 0

4
lld/test/ELF/merge-sym.s
View File

@ -15,7 +15,7 @@ foo:
// CHECK-NEXT: SHF_ALLOC
// CHECK-NEXT: SHF_MERGE
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x158
// CHECK-NEXT: Address: 0x190
// CHECK: Name: foo
// CHECK-NEXT: Value: 0x15A
// CHECK-NEXT: Value: 0x192

18
lld/test/ELF/mips-dynamic.s
View File

@ -20,15 +20,6 @@
# EXE-NEXT: Flags [
# EXE-NEXT: SHF_ALLOC
# EXE-NEXT: ]
# EXE: Name: .rld_map
# EXE-NEXT: Type: SHT_PROGBITS
# EXE-NEXT: Flags [
# EXE-NEXT: SHF_ALLOC
# EXE-NEXT: SHF_WRITE
# EXE-NEXT: ]
# EXE-NEXT: Address: [[RLDMAPADDR:0x[0-9a-f]+]]
# EXE-NEXT: Offset:
# EXE-NEXT: Size: 4
# EXE: Name: .got
# EXE-NEXT: Type: SHT_PROGBITS
# EXE-NEXT: Flags [ (0x10000003)
@ -38,6 +29,15 @@
# EXE-NEXT: Address: [[GOTADDR:0x[0-9a-f]+]]
# EXE-NEXT: Offset:
# EXE-NEXT: Size: 8
# EXE: Name: .rld_map
# EXE-NEXT: Type: SHT_PROGBITS
# EXE-NEXT: Flags [
# EXE-NEXT: SHF_ALLOC
# EXE-NEXT: SHF_WRITE
# EXE-NEXT: ]
# EXE-NEXT: Address: [[RLDMAPADDR:0x[0-9a-f]+]]
# EXE-NEXT: Offset:
# EXE-NEXT: Size: 4
# EXE: ]
# EXE: DynamicSection [
# EXE-NEXT: Tag Type Name/Value

28
lld/test/ELF/mips-got-relocs.s
View File

@ -45,21 +45,21 @@ v1:
.word 0
# EXE_SYM: Sections:
# EXE_SYM: .got 0000000c 0000000000030004 DATA
# EXE_SYM: .got 0000000c 0000000000030000 DATA
# EXE_SYM: SYMBOL TABLE:
# EXE_SYM: 00037ff4 *ABS* 00000000 _gp
# EXE_SYM: 00037ff0 *ABS* 00000000 _gp
# ^-- .got + GP offset (0x7ff0)
# EXE_SYM: 00030000 g .data 00000004 v1
# EXE_SYM: 00030010 g .data 00000004 v1
# EXE_GOT_BE: Contents of section .got:
# EXE_GOT_BE: 30004 00000000 80000000 00030000
# ^ ^ ^-- v1 (0x30000)
# EXE_GOT_BE: 30000 00000000 80000000 00030010
# ^ ^ ^-- v1 (0x30010)
# | +-- Module pointer (0x80000000)
# +-- Lazy resolver (0x0)
# EXE_GOT_EL: Contents of section .got:
# EXE_GOT_EL: 30004 00000000 00000080 00000300
# ^ ^ ^-- v1 (0x30000)
# EXE_GOT_EL: 30000 00000000 00000080 10000300
# ^ ^ ^-- v1 (0x30010)
# | +-- Module pointer (0x80000000)
# +-- Lazy resolver (0x0)
@ -68,21 +68,21 @@ v1:
# EXE_DIS_EL: 20000: 18 80 02 3c lui $2, 32792
# DSO_SYM: Sections:
# DSO_SYM: .got 0000000c 0000000000020004 DATA
# DSO_SYM: .got 0000000c 0000000000020000 DATA
# DSO_SYM: SYMBOL TABLE:
# DSO_SYM: 00027ff4 *ABS* 00000000 _gp
# DSO_SYM: 00027ff0 *ABS* 00000000 _gp
# ^-- .got + GP offset (0x7ff0)
# DSO_SYM: 00020000 g .data 00000004 v1
# DSO_SYM: 00020010 g .data 00000004 v1
# DSO_GOT_BE: Contents of section .got:
# DSO_GOT_BE: 20004 00000000 80000000 00020000
# ^ ^ ^-- v1 (0x20000)
# DSO_GOT_BE: 20000 00000000 80000000 00020010
# ^ ^ ^-- v1 (0x20010)
# | +-- Module pointer (0x80000000)
# +-- Lazy resolver (0x0)
# DSO_GOT_EL: Contents of section .got:
# DSO_GOT_EL: 20004 00000000 00000080 00000200
# ^ ^ ^-- v1 (0x20000)
# DSO_GOT_EL: 20000 00000000 00000080 10000200
# ^ ^ ^-- v1 (0x20010)
# | +-- Module pointer (0x80000000)
# +-- Lazy resolver (0x0)

2
lld/test/ELF/relative-dynamic-reloc-ppc64.s
View File

@ -13,7 +13,7 @@
// CHECK-NEXT: 0x10010 R_PPC64_RELATIVE - 0x10009
// CHECK-NEXT: 0x{{.*}} R_PPC64_RELATIVE - 0x[[ZED_ADDR:.*]]
// CHECK-NEXT: 0x{{.*}} R_PPC64_RELATIVE - 0x[[FOO_ADDR]]
// CHECK-NEXT: 0x160 R_PPC64_ADDR64 external 0x0
// CHECK-NEXT: 0x198 R_PPC64_ADDR64 external 0x0
// CHECK-NEXT: }
// CHECK-NEXT: ]

2
lld/test/ELF/relative-dynamic-reloc.s
View File

@ -12,7 +12,7 @@
// CHECK-NEXT: 0x1010 R_X86_64_RELATIVE - 0x1009
// CHECK-NEXT: 0x{{.*}} R_X86_64_RELATIVE - 0x[[ZED_ADDR:.*]]
// CHECK-NEXT: 0x{{.*}} R_X86_64_RELATIVE - 0x[[FOO_ADDR]]
// CHECK-NEXT: 0x160 R_X86_64_64 external 0x0
// CHECK-NEXT: 0x198 R_X86_64_64 external 0x0
// CHECK-NEXT: }
// CHECK-NEXT: ]

4
lld/test/ELF/relocation.s
View File

@ -104,7 +104,7 @@ R_X86_64_64:
.quad R_X86_64_64
// CHECK: Contents of section .R_X86_64_64:
// CHECK-NEXT: 10158 58010100 00000000
// CHECK-NEXT: 10190 90010100 00000000
.section .R_X86_64_GOTPCREL,"a",@progbits
.global R_X86_64_GOTPCREL
@ -114,4 +114,4 @@ R_X86_64_GOTPCREL:
// 0x120A8 - 0x10160 = 8008
// 8008 = 0x481f0000 in little endian
// CHECK: Contents of section .R_X86_64_GOTPCREL
// CHECK-NEXT: 10160 801f0000
// CHECK-NEXT: 10198 481f0000

243
lld/test/ELF/relro.s Normal file
View File

@ -0,0 +1,243 @@
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/shared.s -o %t2.o
// RUN: ld.lld -shared %t2.o -o %t2.so
// RUN: ld.lld %t.o %t2.so -z now -z relro -o %t
// RUN: llvm-readobj --program-headers --dynamic-table -t -s -dyn-symbols -section-data %t | FileCheck --check-prefix=FULLRELRO %s
// RUN: ld.lld %t.o %t2.so -z relro -o %t
// RUN: llvm-readobj --program-headers --dynamic-table -t -s -dyn-symbols -section-data %t | FileCheck --check-prefix=PARTRELRO %s
// RUN: ld.lld %t.o %t2.so -z norelro -o %t
// RUN: llvm-readobj --program-headers --dynamic-table -t -s -dyn-symbols -section-data %t | FileCheck --check-prefix=NORELRO %s
// REQUIRES: x86
// FULLRELRO: Section {
// FULLRELRO: Index: 9
// FULLRELRO-NEXT: Name: .got
// FULLRELRO-NEXT: Type: SHT_PROGBITS
// FULLRELRO-NEXT: Flags [
// FULLRELRO-NEXT: SHF_ALLOC
// FULLRELRO-NEXT: SHF_WRITE
// FULLRELRO-NEXT: ]
// FULLRELRO-NEXT: Address: 0x12100
// FULLRELRO-NEXT: Offset: 0x2100
// FULLRELRO-NEXT: Size: 8
// FULLRELRO-NEXT: Link: 0
// FULLRELRO-NEXT: Info: 0
// FULLRELRO-NEXT: AddressAlignment: 8
// FULLRELRO-NEXT: EntrySize: 0
// FULLRELRO-NEXT: SectionData (
// FULLRELRO-NEXT: 0000: 00000000 00000000
// FULLRELRO-NEXT: )
// FULLRELRO-NEXT: }
// FULLRELRO-NEXT: Section {
// FULLRELRO-NEXT: Index: 10
// FULLRELRO-NEXT: Name: .got.plt
// FULLRELRO-NEXT: Type: SHT_PROGBITS
// FULLRELRO-NEXT: Flags [
// FULLRELRO-NEXT: SHF_ALLOC
// FULLRELRO-NEXT: SHF_WRITE
// FULLRELRO-NEXT: ]
// FULLRELRO-NEXT: Address: 0x12108
// FULLRELRO-NEXT: Offset: 0x2108
// FULLRELRO-NEXT: Size: 32
// FULLRELRO-NEXT: Link: 0
// FULLRELRO-NEXT: Info: 0
// FULLRELRO-NEXT: AddressAlignment: 8
// FULLRELRO-NEXT: EntrySize: 0
// FULLRELRO-NEXT: SectionData (
// FULLRELRO-NEXT: 0000:
// FULLRELRO-NEXT: 0010:
// FULLRELRO-NEXT: )
// FULLRELRO-NEXT: }
// FULLRELRO-NEXT: Section {
// FULLRELRO-NEXT: Index: 11
// FULLRELRO-NEXT: Name: .data
// FULLRELRO-NEXT: Type: SHT_PROGBITS
// FULLRELRO-NEXT: Flags [
// FULLRELRO-NEXT: SHF_ALLOC
// FULLRELRO-NEXT: SHF_WRITE
// FULLRELRO-NEXT: ]
// FULLRELRO-NEXT: Address: 0x12128
// FULLRELRO-NEXT: Offset: 0x2128
// FULLRELRO-NEXT: Size: 12
// FULLRELRO-NEXT: Link: 0
// FULLRELRO-NEXT: Info: 0
// FULLRELRO-NEXT: AddressAlignment:
// FULLRELRO-NEXT: EntrySize: 0
// FULLRELRO-NEXT: SectionData (
// FULLRELRO-NEXT: 0000:
// FULLRELRO-NEXT: )
// FULLRELRO-NEXT: }
// FULLRELRO-NEXT: Section {
// FULLRELRO-NEXT: Index: 12
// FULLRELRO-NEXT: Name: .foo
// FULLRELRO-NEXT: Type: SHT_PROGBITS
// FULLRELRO-NEXT: Flags [
// FULLRELRO-NEXT: SHF_ALLOC
// FULLRELRO-NEXT: SHF_WRITE
// FULLRELRO-NEXT: ]
// FULLRELRO-NEXT: Address: 0x12134
// FULLRELRO-NEXT: Offset: 0x2134
// FULLRELRO-NEXT: Size: 0
// FULLRELRO-NEXT: Link: 0
// FULLRELRO-NEXT: Info: 0
// FULLRELRO-NEXT: AddressAlignment:
// FULLRELRO-NEXT: EntrySize: 0
// FULLRELRO-NEXT: SectionData (
// FULLRELRO-NEXT: )
// FULLRELRO-NEXT: }
// 308 - sizeof(.data)(12) = 296
// FULLRELRO: ProgramHeaders [
// FULLRELRO: Type: PT_LOAD
// FULLRELRO: Offset: 0x2000
// FULLRELRO-NEXT: VirtualAddress: [[RWADDR:.*]]
// FULLRELRO-NEXT: PhysicalAddress:
// FULLRELRO-NEXT: FileSize: 308
// FULLRELRO-NEXT: MemSize: 308
// FULLRELRO-NEXT: Flags [
// FULLRELRO-NEXT: PF_R
// FULLRELRO-NEXT: PF_W
// FULLRELRO-NEXT: ]
// FULLRELRO-NEXT: Alignment: 4096
// FULLRELRO-NEXT:}
// FULLRELRO: Type: PT_GNU_RELRO
// FULLRELRO-NEXT: Offset: 0x
// FULLRELRO-NEXT: VirtualAddress: [[RWADDR]]
// FULLRELRO-NEXT: PhysicalAddress:
// FULLRELRO-NEXT: FileSize: 296
// FULLRELRO-NEXT: MemSize: 296
// FULLRELRO-NEXT: Flags [
// FULLRELRO-NEXT: PF_R
// FULLRELRO-NEXT: ]
// FULLRELRO-NEXT: Alignment: 1
// FULLRELRO-NEXT:}
// PARTRELRO: Section {
// PARTRELRO: Index: 9
// PARTRELRO-NEXT: Name: .got
// PARTRELRO-NEXT: Type: SHT_PROGBITS
// PARTRELRO-NEXT: Flags [
// PARTRELRO-NEXT: SHF_ALLOC
// PARTRELRO-NEXT: SHF_WRITE
// PARTRELRO-NEXT: ]
// PARTRELRO-NEXT: Address: 0x120E0
// PARTRELRO-NEXT: Offset: 0x20E0
// PARTRELRO-NEXT: Size: 8
// PARTRELRO-NEXT: Link: 0
// PARTRELRO-NEXT: Info: 0
// PARTRELRO-NEXT: AddressAlignment: 8
// PARTRELRO-NEXT: EntrySize: 0
// PARTRELRO-NEXT: SectionData (
// PARTRELRO-NEXT: 0000:
// PARTRELRO-NEXT: )
// PARTRELRO-NEXT: }
// PARTRELRO-NEXT: Section {
// PARTRELRO-NEXT: Index: 10
// PARTRELRO-NEXT: Name: .data
// PARTRELRO-NEXT: Type: SHT_PROGBITS
// PARTRELRO-NEXT: Flags [
// PARTRELRO-NEXT: SHF_ALLOC
// PARTRELRO-NEXT: SHF_WRITE
// PARTRELRO-NEXT: ]
// PARTRELRO-NEXT: Address: 0x120E8
// PARTRELRO-NEXT: Offset: 0x20E8
// PARTRELRO-NEXT: Size: 12
// PARTRELRO-NEXT: Link: 0
// PARTRELRO-NEXT: Info: 0
// PARTRELRO-NEXT: AddressAlignment: 1
// PARTRELRO-NEXT: EntrySize: 0
// PARTRELRO-NEXT: SectionData (
// PARTRELRO-NEXT: 0000:
// PARTRELRO-NEXT: )
// PARTRELRO-NEXT: }
// PARTRELRO-NEXT: Section {
// PARTRELRO-NEXT: Index: 11
// PARTRELRO-NEXT: Name: .foo
// PARTRELRO-NEXT: Type: SHT_PROGBITS
// PARTRELRO-NEXT: Flags [
// PARTRELRO-NEXT: SHF_ALLOC
// PARTRELRO-NEXT: SHF_WRITE
// PARTRELRO-NEXT: ]
// PARTRELRO-NEXT: Address: 0x120F4
// PARTRELRO-NEXT: Offset: 0x20F4
// PARTRELRO-NEXT: Size: 0
// PARTRELRO-NEXT: Link: 0
// PARTRELRO-NEXT: Info: 0
// PARTRELRO-NEXT: AddressAlignment: 1
// PARTRELRO-NEXT: EntrySize: 0
// PARTRELRO-NEXT: SectionData (
// PARTRELRO-NEXT: )
// PARTRELRO-NEXT: }
// PARTRELRO-NEXT: Section {
// PARTRELRO-NEXT: Index: 12
// PARTRELRO-NEXT: Name: .got.plt
// PARTRELRO-NEXT: Type: SHT_PROGBITS
// PARTRELRO-NEXT: Flags [
// PARTRELRO-NEXT: SHF_ALLOC
// PARTRELRO-NEXT: SHF_WRITE
// PARTRELRO-NEXT: ]
// PARTRELRO-NEXT: Address: 0x120F8
// PARTRELRO-NEXT: Offset: 0x20F8
// PARTRELRO-NEXT: Size: 32
// PARTRELRO-NEXT: Link: 0
// PARTRELRO-NEXT: Info: 0
// PARTRELRO-NEXT: AddressAlignment: 8
// PARTRELRO-NEXT: EntrySize: 0
// PARTRELRO-NEXT: SectionData (
// PARTRELRO-NEXT: 0000:
// PARTRELRO-NEXT: 0010:
// PARTRELRO-NEXT: )
// PARTRELRO-NEXT: }
// PARTRELRO-NEXT: Section {
// PARTRELRO-NEXT: Index: 13
// PARTRELRO-NEXT: Name: .bss
// PARTRELRO-NEXT: Type: SHT_NOBITS
// PARTRELRO-NEXT: Flags [
// PARTRELRO-NEXT: SHF_ALLOC
// PARTRELRO-NEXT: SHF_WRITE
// PARTRELRO-NEXT: ]
// PARTRELRO-NEXT: Address: 0x12118
// PARTRELRO-NEXT: Offset: 0x2118
// PARTRELRO-NEXT: Size: 0
// PARTRELRO-NEXT: Link: 0
// PARTRELRO-NEXT: Info: 0
// PARTRELRO-NEXT: AddressAlignment: 1
// PARTRELRO-NEXT: EntrySize: 0
// PARTRELRO-NEXT: }
// 232 + sizeof(.data)(12) + align(4) + sizeof(.got.plt)(32) = 280
// PARTRELRO: ProgramHeader {
// PARTRELRO: Type: PT_LOAD
// PARTRELRO: Offset: 0x2000
// PARTRELRO-NEXT: VirtualAddress: [[RWADDR:.*]]
// PARTRELRO-NEXT: PhysicalAddress:
// PARTRELRO-NEXT: FileSize: 280
// PARTRELRO-NEXT: MemSize: 280
// PARTRELRO-NEXT: Flags [
// PARTRELRO-NEXT: PF_R (0x4)
// PARTRELRO-NEXT: PF_W (0x2)
// PARTRELRO-NEXT: ]
// PARTRELRO-NEXT: Alignment: 4096
// PARTRELRO: Type: PT_GNU_RELRO
// PARTRELRO-NEXT: Offset: 0x2000
// PARTRELRO-NEXT: VirtualAddress: [[RWADDR]]
// PARTRELRO-NEXT: PhysicalAddress:
// PARTRELRO-NEXT: FileSize: 232
// PARTRELRO-NEXT: MemSize: 232
// PARTRELRO-NEXT: Flags [
// PARTRELRO-NEXT: PF_R
// PARTRELRO-NEXT: ]
// PARTRELRO-NEXT: Alignment: 1
// NORELRO: ProgramHeaders [
// NORELRO-NOT: PT_GNU_RELRO
.global _start
_start:
.long bar
jmp *bar@GOTPCREL(%rip)
.section .data,"aw"
.quad 0
.zero 4
.section .foo,"aw"
.section .bss,"",@nobits

6
lld/test/ELF/section-name.s
View File

@ -26,12 +26,12 @@ _start:
// CHECK: Name: .rodata
// CHECK-NOT: Name: .text.a
// CHECK: Name: .text
// CHECK-NOT: Name: .data.rel.ro.a
// CHECK-NOT: Name: .data.rel.ro.local.a
// CHECK: Name: .data.rel.ro
// CHECK-NOT: Name: .data.a
// CHECK: Name: .data
// CHECK: Name: .foo.a
// CHECK: Name: .foo
// CHECK-NOT: Name: .data.rel.ro.a
// CHECK-NOT: Name: .data.rel.ro.local.a
// CHECK: Name: .data.rel.ro
// CHECK-NOT: Name: .bss.a
// CHECK: Name: .bss

2
lld/test/ELF/shared.s
View File

@ -46,7 +46,7 @@
// CHECK-NEXT: SHF_ALLOC
// CHECK-NEXT: ]
// CHECK-NEXT: Address: [[DYNSYMADDR:.*]]
// CHECK-NEXT: Offset: 0x110
// CHECK-NEXT: Offset: 0x130
// CHECK-NEXT: Size:
// CHECK-NEXT: Link: [[DYNSTR:.*]]
// CHECK-NEXT: Info: 1