123 lines
3.9 KiB
Plaintext
123 lines
3.9 KiB
Plaintext
# Check veneer generation for R_ARM_JUMP24 relocation (B instruction call).
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# RUN: yaml2obj -format=elf -docnum 1 %s > %t-arm.o
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# RUN: yaml2obj -format=elf -docnum 2 %s > %t-thm.o
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# RUN: lld -flavor gnu -target arm -m armelf_linux_eabi -Bstatic \
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# RUN: --noinhibit-exec %t-arm.o %t-thm.o -o %t
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# RUN: llvm-objdump -s -t %t | FileCheck -check-prefix=STATIC %s
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# STATIC: Contents of section .text:
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# STATIC: 400074 010000ea
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# Call from main:
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# offset = 0x4 ^^
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# call site offset PC(arm) ___Z1fv_from_arm addr
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# 0x400074 + 0x4 + 0x8 = 0x400080
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#
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# Code of the veneer:
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# STATIC: {{[0-9a-f]+}} {{[0-9a-f]+}} 04f01fe5
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# STATIC: 400084 79004000
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# ^^ call addr = 0x400079
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# call addr _Z1fv addr Thumb mode
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# 0x400079 = 0x400078 | 0x1
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#
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# STATIC: SYMBOL TABLE:
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# STATIC: 00400080 l F .text {{[0-9a-f]+}} ___Z1fv_from_arm
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# STATIC: 00400074 g F .text {{[0-9a-f]+}} main
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# STATIC: 00400078 g F .text {{[0-9a-f]+}} _Z1fv
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# RUN: yaml2obj -format=elf -docnum 1 %s > %t-arm.o
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# RUN: yaml2obj -format=elf -docnum 2 %s > %t-thm.o
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# RUN: lld -flavor gnu -target arm -m armelf_linux_eabi \
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# RUN: --noinhibit-exec %t-arm.o %t-thm.o -o %t
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# RUN: llvm-objdump -s -t %t | FileCheck -check-prefix=EXEC-DYN %s
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# EXEC-DYN: Contents of section .text:
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# EXEC-DYN: 400114 010000ea
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# Call from main:
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# offset = 0x4 ^^
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# call site offset PC(arm) ___Z1fv_from_arm addr
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# 0x400114 + 0x4 + 0x8 = 0x400120
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#
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# Code of the veneer:
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# EXEC-DYN: {{[0-9a-f]+}} {{[0-9a-f]+}} 04f01fe5
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# EXEC-DYN: 400124 19014000
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# call addr = 0x400119 ^^
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# call addr _Z1fv addr Thumb mode
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# 0x400119 = 0x400118 | 0x1
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#
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# EXEC-DYN: SYMBOL TABLE:
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# EXEC-DYN: 00400120 l F .text {{[0-9a-f]+}} ___Z1fv_from_arm
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# EXEC-DYN: 00400114 g F .text {{[0-9a-f]+}} main
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# EXEC-DYN: 00400118 g F .text {{[0-9a-f]+}} _Z1fv
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# arm.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_ARM
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Flags: [ EF_ARM_EABI_VER5 ]
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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: 0x0000000000000004
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Content: FEFFFFEA
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- Name: .rel.text
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Type: SHT_REL
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Link: .symtab
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AddressAlign: 0x0000000000000004
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Info: .text
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Relocations:
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- Offset: 0x0000000000000000
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Symbol: _Z1fv
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Type: R_ARM_JUMP24
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Addend: 0
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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: 0x0000000000000001
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Content: ''
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- Name: .bss
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Type: SHT_NOBITS
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Flags: [ SHF_WRITE, SHF_ALLOC ]
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AddressAlign: 0x0000000000000001
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Symbols:
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Global:
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- Name: main
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Type: STT_FUNC
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Section: .text
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- Name: _Z1fv
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# thm.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_ARM
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Flags: [ EF_ARM_EABI_VER5 ]
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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: 0x0000000000000004
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Content: 4FF0000318467047
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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: 0x0000000000000001
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Content: ''
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- Name: .bss
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Type: SHT_NOBITS
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Flags: [ SHF_WRITE, SHF_ALLOC ]
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AddressAlign: 0x0000000000000001
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Symbols:
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Global:
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- Name: _Z1fv
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Type: STT_FUNC
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Section: .text
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Value: 0x0000000000000001
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...
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