diff options
Diffstat (limited to 'test/elf/Mips/rel-dynamic-05.test')
-rw-r--r-- | test/elf/Mips/rel-dynamic-05.test | 188 |
1 files changed, 188 insertions, 0 deletions
diff --git a/test/elf/Mips/rel-dynamic-05.test b/test/elf/Mips/rel-dynamic-05.test new file mode 100644 index 0000000000000..3bfbd3f6efdbc --- /dev/null +++ b/test/elf/Mips/rel-dynamic-05.test @@ -0,0 +1,188 @@ +# Conditions: +# a) Linking a non-shared executable file. +# b) Relocations' targets are symbols defined in the shared object. +# c) Relocations modify a read-only section. +# d) The first symbol is referenced by R_MIPS32 relocation only +# e) The second symbol is referenced by R_MIPS_32 and R_MIPS26 relocations. +# f) The third symbol is referenced by R_MIPS26 and R_MIPS_32 relocations. +# Check: +# a) There should be no R_MIPS_REL32 relocations. +# b) Linker creates PLT entries for all three relocations. +# c) STO_MIPS_PLT flag in the dynamic symbol table for symbols require +# a pointer equality. +# +# RUN: yaml2obj -format=elf -docnum 1 %s > %t-so.o +# RUN: lld -flavor gnu -target mipsel -shared -o %t.so %t-so.o +# RUN: yaml2obj -format=elf -docnum 2 %s > %t-o.o +# RUN: lld -flavor gnu -target mipsel -e T0 -o %t.exe %t-o.o %t.so +# RUN: llvm-readobj -dt -r -s %t.exe | FileCheck -check-prefix=PLT %s + +# PLT: Section { +# PLT: Index: 5 +# PLT-NEXT: Name: .rel.plt (31) +# PLT-NEXT: Type: SHT_REL (0x9) +# PLT-NEXT: Flags [ (0x2) +# PLT-NEXT: SHF_ALLOC (0x2) +# PLT-NEXT: ] +# PLT-NEXT: Address: 0x400190 +# PLT-NEXT: Offset: 0x190 +# PLT-NEXT: Size: 24 +# PLT-NEXT: Link: 3 +# PLT-NEXT: Info: 0 +# PLT-NEXT: AddressAlignment: 4 +# PLT-NEXT: EntrySize: 8 +# PLT-NEXT: } +# PLT-NEXT: Section { +# PLT-NEXT: Index: 6 +# PLT-NEXT: Name: .plt (40) +# PLT-NEXT: Type: SHT_PROGBITS (0x1) +# PLT-NEXT: Flags [ (0x6) +# PLT-NEXT: SHF_ALLOC (0x2) +# PLT-NEXT: SHF_EXECINSTR (0x4) +# PLT-NEXT: ] +# PLT-NEXT: Address: 0x4001B0 +# PLT-NEXT: Offset: 0x1B0 +# PLT-NEXT: Size: 80 +# PLT-NEXT: Link: 0 +# PLT-NEXT: Info: 0 +# PLT-NEXT: AddressAlignment: 16 +# PLT-NEXT: EntrySize: 0 +# PLT-NEXT: } + +# PLT: Relocations [ +# PLT-NEXT: Section (5) .rel.plt { +# PLT-NEXT: 0x402008 R_MIPS_JUMP_SLOT T1 0x0 +# PLT-NEXT: 0x40200C R_MIPS_JUMP_SLOT T2 0x0 +# PLT-NEXT: 0x402010 R_MIPS_JUMP_SLOT T3 0x0 +# PLT-NEXT: } +# PLT-NEXT: ] + +# PLT: DynamicSymbols [ +# PLT-NEXT: Symbol { +# PLT-NEXT: Name: @ (0) +# PLT-NEXT: Value: 0x0 +# PLT-NEXT: Size: 0 +# PLT-NEXT: Binding: Local (0x0) +# PLT-NEXT: Type: None (0x0) +# PLT-NEXT: Other: 0 +# PLT-NEXT: Section: Undefined (0x0) +# PLT-NEXT: } +# PLT-NEXT: Symbol { +# PLT-NEXT: Name: T1@ (1) +# PLT-NEXT: Value: 0x4001D0 +# PLT-NEXT: Size: 0 +# PLT-NEXT: Binding: Global (0x1) +# PLT-NEXT: Type: Function (0x2) +# PLT-NEXT: Other: 8 +# PLT-NEXT: Section: Undefined (0x0) +# PLT-NEXT: } +# PLT-NEXT: Symbol { +# PLT-NEXT: Name: T2@ (4) +# PLT-NEXT: Value: 0x4001E0 +# PLT-NEXT: Size: 0 +# PLT-NEXT: Binding: Global (0x1) +# PLT-NEXT: Type: Function (0x2) +# PLT-NEXT: Other: 8 +# PLT-NEXT: Section: Undefined (0x0) +# PLT-NEXT: } +# PLT-NEXT: Symbol { +# PLT-NEXT: Name: T3@ (7) +# PLT-NEXT: Value: 0x4001F0 +# PLT-NEXT: Size: 0 +# PLT-NEXT: Binding: Global (0x1) +# PLT-NEXT: Type: Function (0x2) +# PLT-NEXT: Other: 8 +# PLT-NEXT: Section: Undefined (0x0) +# PLT-NEXT: } +# PLT-NEXT: ] + +# so.o +--- +FileHeader: + Class: ELFCLASS32 + Data: ELFDATA2LSB + Type: ET_REL + Machine: EM_MIPS + Flags: [EF_MIPS_PIC, EF_MIPS_CPIC, EF_MIPS_ABI_O32, EF_MIPS_ARCH_32] + +Sections: +- Name: .text + Type: SHT_PROGBITS + Size: 0x0C + AddressAlign: 16 + Flags: [SHF_EXECINSTR, SHF_ALLOC] + +Symbols: + Global: + - Name: T1 + Section: .text + Type: STT_FUNC + Value: 0x0 + Size: 4 + - Name: T2 + Section: .text + Type: STT_FUNC + Value: 0x4 + Size: 4 + - Name: T3 + Section: .text + Type: STT_FUNC + Value: 0x8 + Size: 4 + +# o.o +--- +FileHeader: !FileHeader + Class: ELFCLASS32 + Data: ELFDATA2LSB + Type: ET_REL + Machine: EM_MIPS + Flags: [EF_MIPS_CPIC, EF_MIPS_ABI_O32, EF_MIPS_ARCH_32] + +Sections: +- Name: .text + Type: SHT_PROGBITS + Size: 0x08 + AddressAlign: 16 + Flags: [SHF_EXECINSTR, SHF_ALLOC] + +- Name: .rel.text + Type: SHT_REL + Info: .text + AddressAlign: 4 + Relocations: + # There is no branch relocation for T1. + - Offset: 0x00 + Symbol: T1 + Type: R_MIPS_32 + # The R_MIPS_32 relocation for T2 might produce R_MIPS_REL32 ... + - Offset: 0x00 + Symbol: T2 + Type: R_MIPS_32 + # ... but R_MIPS_26 creates PLT entry and makes R_MIPS_REL32 redundant. + - Offset: 0x04 + Symbol: T2 + Type: R_MIPS_26 + # Create PLT entry for T3 symbol. + - Offset: 0x00 + Symbol: T3 + Type: R_MIPS_26 + # Take in account existing PLT entry and do not create R_MIPS_REL32. + - Offset: 0x04 + Symbol: T3 + Type: R_MIPS_32 + +Symbols: + Global: + - Name: T0 + Section: .text + Type: STT_FUNC + Value: 0x0 + Size: 8 + - Name: T1 + Type: STT_FUNC + - Name: T2 + Type: STT_FUNC + - Name: T3 + Type: STT_FUNC +... |