658f23fc46
As per section 4.2.2 of the PowerPC ELFv2 ABI, this value tells the dynamic linker which optimizations it is allowed to do. Specifically, the higher order bit of the two tells the dynamic linker that there may be multiple TOC pointers in the binary. When we resolve any NOTOC relocations during linking, we need to set this value because we may be calling TOC functions from NOTOC functions when the NOTOC function already clobbered the TOC pointer. In practice, this ensures that the PLT resolver always resolves the call to the GEP (global entry point) of the TOC function (which will set up the TOC for the TOC function). Original patch by nemanjai Reviewed By: MaskRay Differential Revision: https://reviews.llvm.org/D150631
361 lines
12 KiB
ArmAsm
361 lines
12 KiB
ArmAsm
# REQUIRES: ppc
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# RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
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# RUN: ld.lld --hash-style=sysv -discard-all -shared %t.o -o %t.so
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# RUN: llvm-readobj --file-headers --sections --section-data -l %t.so | FileCheck --check-prefixes=CHECK,LE %s
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# RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
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# RUN: ld.lld --hash-style=sysv -discard-all -shared %t.o -o %t.so
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# RUN: llvm-readobj --file-headers --sections --section-data -l %t.so | FileCheck --check-prefixes=CHECK,BE %s
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.abiversion 2
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# Exits with return code 55 on linux.
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.text
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li 0,1
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li 3,55
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sc
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// CHECK: Format: elf64-powerpc
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// LE-NEXT: Arch: powerpc64le
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// BE-NEXT: Arch: powerpc64{{$}}
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// CHECK-NEXT: AddressSize: 64bit
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// CHECK-NEXT: LoadName:
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// CHECK-NEXT: 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 (0x2)
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// LE-NEXT: DataEncoding: LittleEndian (0x1)
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// BE-NEXT: DataEncoding: BigEndian (0x2)
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// CHECK-NEXT: FileVersion: 1
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// CHECK-NEXT: OS/ABI: SystemV (0x0)
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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: SharedObject (0x3)
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// CHECK-NEXT: Machine: EM_PPC64 (0x15)
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// CHECK-NEXT: Version: 1
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// CHECK-NEXT: Entry: 0x0
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// CHECK-NEXT: ProgramHeaderOffset: 0x40
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// CHECK-NEXT: SectionHeaderOffset: 0x340
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// CHECK-NEXT: Flags [ (0x2)
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// CHECK-NEXT: 0x2
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// CHECK-NEXT: ]
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// CHECK-NEXT: HeaderSize: 64
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// CHECK-NEXT: ProgramHeaderEntrySize: 56
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// CHECK-NEXT: ProgramHeaderCount: 7
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// CHECK-NEXT: SectionHeaderEntrySize: 64
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// CHECK-NEXT: SectionHeaderCount: 11
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// CHECK-NEXT: StringTableSectionIndex: 9
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// CHECK-NEXT:}
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// CHECK-NEXT:Sections [
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 0
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// CHECK-NEXT: Name: (0)
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// CHECK-NEXT: Type: SHT_NULL (0x0)
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// CHECK-NEXT: Flags [ (0x0)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x0
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 0
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// CHECK-NEXT: EntrySize: 0
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// CHECK-NEXT: SectionData (
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 1
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// CHECK-NEXT: Name: .dynsym (1)
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// CHECK-NEXT: Type: SHT_DYNSYM (0xB)
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// CHECK-NEXT: Flags [ (0x2)
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// CHECK-NEXT: SHF_ALLOC (0x2)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x200
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// CHECK-NEXT: Offset: 0x200
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// CHECK-NEXT: Size: 24
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// CHECK-NEXT: Link: 3
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// CHECK-NEXT: Info: 1
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// CHECK-NEXT: AddressAlignment: 8
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// CHECK-NEXT: EntrySize: 24
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// CHECK-NEXT: SectionData (
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// CHECK-NEXT: 0000: 00000000 00000000 00000000 00000000 |................|
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// CHECK-NEXT: 0010: 00000000 00000000 |........|
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 2
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// CHECK-NEXT: Name: .hash (9)
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// CHECK-NEXT: Type: SHT_HASH (0x5)
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// CHECK-NEXT: Flags [ (0x2)
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// CHECK-NEXT: SHF_ALLOC (0x2)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x218
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// CHECK-NEXT: Offset: 0x218
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// CHECK-NEXT: Size: 16
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// CHECK-NEXT: Link: 1
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 4
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// CHECK-NEXT: EntrySize: 4
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// CHECK-NEXT: SectionData (
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// LE-NEXT: 0000: 01000000 01000000 00000000 00000000
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// BE-NEXT: 0000: 00000001 00000001 00000000 00000000
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 3
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// CHECK-NEXT: Name: .dynstr (15)
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// CHECK-NEXT: Type: SHT_STRTAB (0x3)
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// CHECK-NEXT: Flags [ (0x2)
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// CHECK-NEXT: SHF_ALLOC (0x2)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x228
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// CHECK-NEXT: Offset: 0x228
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// CHECK-NEXT: Size: 1
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 1
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// CHECK-NEXT: EntrySize: 0
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// CHECK-NEXT: SectionData (
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// CHECK-NEXT: 0000: 00 |.|
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 4
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// CHECK-NEXT: Name: .text (23)
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// CHECK-NEXT: Type: SHT_PROGBITS (0x1)
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// CHECK-NEXT: Flags [ (0x6)
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// CHECK-NEXT: SHF_ALLOC (0x2)
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// CHECK-NEXT: SHF_EXECINSTR (0x4)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x1022C
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// CHECK-NEXT: Offset: 0x22C
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// CHECK-NEXT: Size: 12
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 4
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// CHECK-NEXT: EntrySize: 0
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// CHECK-NEXT: SectionData (
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// LE-NEXT: 0000: 01000038 37006038 02000044
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// BE-NEXT: 0000: 38000001 38600037 44000002
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 5
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// CHECK-NEXT: Name: .dynamic (29)
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// CHECK-NEXT: Type: SHT_DYNAMIC (0x6)
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// CHECK-NEXT: Flags [ (0x3)
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// CHECK-NEXT: SHF_ALLOC (0x2)
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// CHECK-NEXT: SHF_WRITE (0x1)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x20238
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// CHECK-NEXT: Offset: 0x238
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// CHECK-NEXT: Size: 112
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// CHECK-NEXT: Link: 3
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 8
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// CHECK-NEXT: EntrySize: 16
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// CHECK-NEXT: SectionData (
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// LE-NEXT: 0000: 06000000 00000000 00020000 00000000 |
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// LE-NEXT: 0010: 0B000000 00000000 18000000 00000000 |
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// LE-NEXT: 0020: 05000000 00000000 28020000 00000000 |
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// LE-NEXT: 0030: 0A000000 00000000 01000000 00000000 |
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// LE-NEXT: 0040: 04000000 00000000 18020000 00000000 |
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// LE-NEXT: 0050: 03000070 00000000 00000000 00000000 |
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// LE-NEXT: 0060: 00000000 00000000 00000000 00000000 |
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// BE-NEXT: 0000: 00000000 00000006 00000000 00000200 |
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// BE-NEXT: 0010: 00000000 0000000B 00000000 00000018 |
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// BE-NEXT: 0020: 00000000 00000005 00000000 00000228 |
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// BE-NEXT: 0030: 00000000 0000000A 00000000 00000001 |
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// BE-NEXT: 0040: 00000000 00000004 00000000 00000218 |
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// BE-NEXT: 0050: 00000000 70000003 00000000 00000000 |
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// BE-NEXT: 0060: 00000000 00000000 00000000 00000000 |
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 6
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// CHECK-NEXT: Name: .branch_lt (38)
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// CHECK-NEXT: Type: SHT_NOBITS (0x8)
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// CHECK-NEXT: Flags [ (0x3)
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// CHECK-NEXT: SHF_ALLOC (0x2)
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// CHECK-NEXT: SHF_WRITE (0x1)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x302A8
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// CHECK-NEXT: Offset: 0x2A8
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// CHECK-NEXT: Size: 0
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 8
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// CHECK-NEXT: EntrySize: 0
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 7
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// CHECK-NEXT: Name: .comment (49)
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// CHECK-NEXT: Type: SHT_PROGBITS (0x1)
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// CHECK-NEXT: Flags [ (0x30)
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// CHECK-NEXT: SHF_MERGE (0x10)
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// CHECK-NEXT: SHF_STRINGS (0x20)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x2A8
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// CHECK-NEXT: Size: 8
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 1
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// CHECK-NEXT: EntrySize: 1
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// CHECK-NEXT: SectionData (
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// CHECK-NEXT: 0000: 4C4C4420 312E3000 |LLD 1.0.|
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 8
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// CHECK-NEXT: Name: .symtab (58)
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// CHECK-NEXT: Type: SHT_SYMTAB (0x2)
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// CHECK-NEXT: Flags [ (0x0)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x2B0
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// CHECK-NEXT: Size: 48
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// CHECK-NEXT: Link: 10
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// CHECK-NEXT: Info: 2
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// CHECK-NEXT: AddressAlignment: 8
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// CHECK-NEXT: EntrySize: 24
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// CHECK-NEXT: SectionData (
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// LE-NEXT: 0000: 00000000 00000000 00000000 00000000
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// LE-NEXT: 0010: 00000000 00000000 01000000 00020500
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// LE-NEXT: 0020: 38020200 00000000 00000000 00000000
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// BE-NEXT: 0000: 00000000 00000000 00000000 00000000
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// BE-NEXT: 0010: 00000000 00000000 00000001 00020005
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// BE-NEXT: 0020: 00000000 00020238 00000000 00000000
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 9
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// CHECK-NEXT: Name: .shstrtab (66)
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// CHECK-NEXT: Type: SHT_STRTAB (0x3)
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// CHECK-NEXT: Flags [ (0x0)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x2E0
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// CHECK-NEXT: Size: 84
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 1
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// CHECK-NEXT: EntrySize: 0
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// CHECK-NEXT: SectionData (
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// CHECK-NEXT: 0000: 002E6479 6E73796D 002E6861 7368002E |..dynsym..hash..|
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// CHECK-NEXT: 0010: 64796E73 7472002E 74657874 002E6479 |dynstr..text..dy|
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// CHECK-NEXT: 0020: 6E616D69 63002E62 72616E63 685F6C74 |namic..branch_lt|
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// CHECK-NEXT: 0030: 002E636F 6D6D656E 74002E73 796D7461 |..comment..symta|
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// CHECK-NEXT: 0040: 62002E73 68737472 74616200 2E737472 |b..shstrtab..str|
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// CHECK-NEXT: 0050: 74616200 |tab.|
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT: Section {
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// CHECK-NEXT: Index: 10
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// CHECK-NEXT: Name: .strtab (76)
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// CHECK-NEXT: Type: SHT_STRTAB (0x3)
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// CHECK-NEXT: Flags [ (0x0)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Address: 0x0
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// CHECK-NEXT: Offset: 0x334
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// CHECK-NEXT: Size: 10
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// CHECK-NEXT: Link: 0
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// CHECK-NEXT: Info: 0
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// CHECK-NEXT: AddressAlignment: 1
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// CHECK-NEXT: EntrySize: 0
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// CHECK-NEXT: SectionData (
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// CHECK-NEXT: 0000: 005F4459 4E414D49 4300 |._DYNAMIC.|
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// CHECK-NEXT: )
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// CHECK-NEXT: }
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// CHECK-NEXT:]
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// CHECK-NEXT:ProgramHeaders [
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// CHECK-NEXT: ProgramHeader {
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// CHECK-NEXT: Type: PT_PHDR (0x6)
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// CHECK-NEXT: Offset: 0x40
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// CHECK-NEXT: VirtualAddress: 0x40
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// CHECK-NEXT: PhysicalAddress: 0x40
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// CHECK-NEXT: FileSize: 448
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// CHECK-NEXT: MemSize: 448
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// CHECK-NEXT: Flags [ (0x4)
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// CHECK-NEXT: PF_R (0x4)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Alignment: 8
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// CHECK-NEXT: }
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// CHECK-NEXT: ProgramHeader {
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// CHECK-NEXT: Type: PT_LOAD (0x1)
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// CHECK-NEXT: Offset: 0x0
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// CHECK-NEXT: VirtualAddress: 0x0
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// CHECK-NEXT: PhysicalAddress: 0x0
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// CHECK-NEXT: FileSize: 553
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// CHECK-NEXT: MemSize: 553
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// CHECK-NEXT: Flags [ (0x4)
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// CHECK-NEXT: PF_R (0x4)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Alignment: 65536
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// CHECK-NEXT: }
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// CHECK-NEXT: ProgramHeader {
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// CHECK-NEXT: Type: PT_LOAD (0x1)
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// CHECK-NEXT: Offset: 0x22C
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// CHECK-NEXT: VirtualAddress: 0x1022C
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// CHECK-NEXT: PhysicalAddress: 0x1022C
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// CHECK-NEXT: FileSize: 12
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// CHECK-NEXT: MemSize: 12
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// CHECK-NEXT: Flags [ (0x5)
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// CHECK-NEXT: PF_R (0x4)
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// CHECK-NEXT: PF_X (0x1)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Alignment: 65536
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// CHECK-NEXT: }
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// CHECK-NEXT: ProgramHeader {
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// CHECK-NEXT: Type: PT_LOAD (0x1)
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// CHECK-NEXT: Offset: 0x238
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// CHECK-NEXT: VirtualAddress: 0x20238
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// CHECK-NEXT: PhysicalAddress: 0x20238
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// CHECK-NEXT: FileSize: 112
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// CHECK-NEXT: MemSize: 112
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// CHECK-NEXT: Flags [ (0x6)
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// CHECK-NEXT: PF_R (0x4)
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// CHECK-NEXT: PF_W (0x2)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Alignment: 65536
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// CHECK-NEXT: }
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// CHECK-NEXT: ProgramHeader {
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// CHECK-NEXT: Type: PT_DYNAMIC (0x2)
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// CHECK-NEXT: Offset: 0x238
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// CHECK-NEXT: VirtualAddress: 0x20238
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// CHECK-NEXT: PhysicalAddress: 0x20238
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// CHECK-NEXT: FileSize: 112
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// CHECK-NEXT: MemSize: 112
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// CHECK-NEXT: Flags [ (0x6)
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// CHECK-NEXT: PF_R (0x4)
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// CHECK-NEXT: PF_W (0x2)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Alignment: 8
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// CHECK-NEXT: }
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// CHECK-NEXT: ProgramHeader {
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// CHECK-NEXT: Type: PT_GNU_RELRO (0x6474E552)
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// CHECK-NEXT: Offset: 0x238
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// CHECK-NEXT: VirtualAddress: 0x20238
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// CHECK-NEXT: PhysicalAddress: 0x20238
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// CHECK-NEXT: FileSize: 112
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// CHECK-NEXT: MemSize: 3528
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// CHECK-NEXT: Flags [ (0x4)
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// CHECK-NEXT: PF_R (0x4)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Alignment: 1
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// CHECK-NEXT: }
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// CHECK-NEXT: ProgramHeader {
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// CHECK-NEXT: Type: PT_GNU_STACK (0x6474E551)
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// CHECK-NEXT: Offset: 0x0
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// CHECK-NEXT: VirtualAddress: 0x0
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// CHECK-NEXT: PhysicalAddress: 0x0
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// CHECK-NEXT: FileSize: 0
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// CHECK-NEXT: MemSize: 0
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// CHECK-NEXT: Flags [ (0x6)
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// CHECK-NEXT: PF_R (0x4)
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// CHECK-NEXT: PF_W (0x2)
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// CHECK-NEXT: ]
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// CHECK-NEXT: Alignment: 0
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// CHECK-NEXT: }
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// CHECK-NEXT:]
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