187 lines
4.5 KiB
Plaintext
187 lines
4.5 KiB
Plaintext
# Check R_MIPS_EH relocation handling: writing result of a relocation
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# calculation, adding GOT entries etc.
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# RUN: yaml2obj -format=elf -docnum 1 %s > %t.so.o
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# RUN: lld -flavor old-gnu -target mipsel -shared -o %t.so %t.so.o
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# RUN: yaml2obj -format=elf -docnum 2 %s > %t1.o
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# RUN: yaml2obj -format=elf -docnum 3 %s > %t2.o
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# RUN: lld -flavor old-gnu -target mipsel -e T0 -o %t.exe %t1.o %t2.o %t.so
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# RUN: llvm-objdump -s -t %t.exe | FileCheck -check-prefix=RAW %s
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# RUN: llvm-readobj -mips-plt-got %t.exe | FileCheck -check-prefix=GOT %s
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# RAW: Contents of section .gnu_extab:
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# RAW-NEXT: 400178 001880ff ff000000 1c80ffff 2080ffff
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# ^ T1 GOT entry = 0xffff8018 = -32744
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# ^ L1 GOT entry = 0xffff801c = -32740
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# E1 GOT entry = 0xffff8020 = -32736 ^
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# RAW: Contents of section .got:
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# RAW-NEXT: 401000 00000000 00000080 60014000 00204000
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# RAW-NEXT: 401010 00000000
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# RAW: SYMBOL TABLE:
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# RAW: 00402000 l .data 00000004 L1
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# RAW: 00400160 g F .text 00000004 T1
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# GOT: Local entries [
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# GOT-NEXT: Entry {
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# GOT-NEXT: Address: 0x401008
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# GOT-NEXT: Access: -32744
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# GOT-NEXT: Initial: 0x400160
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# GOT-NEXT: }
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# GOT-NEXT: Entry {
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# GOT-NEXT: Address: 0x40100C
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# GOT-NEXT: Access: -32740
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# GOT-NEXT: Initial: 0x402000
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# GOT-NEXT: }
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# GOT-NEXT: ]
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# GOT-NEXT: Global entries [
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# GOT-NEXT: Entry {
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# GOT-NEXT: Address: 0x401010
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# GOT-NEXT: Access: -32736
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# GOT-NEXT: Initial: 0x0
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# GOT-NEXT: Value: 0x0
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# GOT-NEXT: Type: Function (0x2)
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# GOT-NEXT: Section: Undefined (0x0)
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# GOT-NEXT: Name: E1@ (1)
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# GOT-NEXT: }
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# GOT-NEXT: ]
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# GOT-NEXT: Number of TLS and multi-GOT entries: 0
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# so.o
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---
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_MIPS
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Flags: [EF_MIPS_NOREORDER, EF_MIPS_CPIC, EF_MIPS_PIC,
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EF_MIPS_ABI_O32, EF_MIPS_ARCH_32R2]
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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AddressAlign: 16
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Size: 4
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Symbols:
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Global:
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- Name: E1
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Type: STT_FUNC
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Section: .text
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Value: 0
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Size: 4
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# t1.o
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---
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_MIPS
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Flags: [EF_MIPS_NOREORDER, EF_MIPS_CPIC, EF_MIPS_PIC,
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EF_MIPS_ABI_O32, EF_MIPS_ARCH_32R2]
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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AddressAlign: 16
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Size: 4
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Symbols:
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Global:
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- Name: T1
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Type: STT_FUNC
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Section: .text
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Value: 0
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Size: 4
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# t2.o
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---
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FileHeader:
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Class: ELFCLASS32
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Data: ELFDATA2LSB
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Type: ET_REL
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Machine: EM_MIPS
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Flags: [EF_MIPS_NOREORDER, EF_MIPS_CPIC, EF_MIPS_PIC,
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EF_MIPS_ABI_O32, EF_MIPS_ARCH_32R2]
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Sections:
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- Name: .text
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC, SHF_EXECINSTR]
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AddressAlign: 16
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Size: 8
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- Name: .data
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Type: SHT_PROGBITS
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Flags: [SHF_WRITE, SHF_ALLOC]
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AddressAlign: 16
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Size: 4
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- Name: .gnu_extab
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC]
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AddressAlign: 4
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Size: 16
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- Name: .rel.gnu_extab
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Type: SHT_REL
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Link: .symtab
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AddressAlign: 4
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Info: .gnu_extab
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Relocations:
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- Offset: 1
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Symbol: T1
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Type: R_MIPS_EH
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- Offset: 8
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Symbol: L1
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Type: R_MIPS_EH
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- Offset: 12
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Symbol: E1
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Type: R_MIPS_EH
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- Name: .eh_frame_entry
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Type: SHT_PROGBITS
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Flags: [SHF_ALLOC]
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AddressAlign: 4
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Content: "0000000100000001"
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- Name: .rel.eh_frame_entry
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Type: SHT_REL
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Link: .symtab
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AddressAlign: 4
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Info: .eh_frame_entry
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Relocations:
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- Offset: 0
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Symbol: .text
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Type: R_MIPS_PC32
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- Offset: 4
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Symbol: .gnu_extab
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Type: R_MIPS_PC32
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Symbols:
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Local:
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- Name: .text
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Type: STT_SECTION
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Section: .text
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- Name: .gnu_extab
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Type: STT_SECTION
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Section: .gnu_extab
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- Name: L1
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Type: STT_OBJECT
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Section: .data
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Value: 0
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Size: 4
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Global:
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- Name: T0
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Type: STT_FUNC
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Section: .text
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Value: 0
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Size: 8
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- Name: E1
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- Name: T1
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...
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