| # REQUIRES: mips |
| ## Check that we can link a shared library containing an eh_frame section without |
| ## -z notext. This was not possible LLVM started emitting values using the |
| ## DW_EH_PE_pcrel | DW_EH_PE_sdata4 encoding. |
| |
| ## It should not be possible to link code compiled without -fPIC: |
| # RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux %s -o %t-nopic.o |
| # RUN: llvm-dwarfdump --eh-frame %t-nopic.o | FileCheck %s --check-prefix=ABS64-EH-FRAME |
| # RUN: llvm-readobj -r %t-nopic.o | FileCheck %s --check-prefixes=RELOCS,ABS64-RELOCS |
| # RUN: not ld.lld -shared %t-nopic.o -o /dev/null 2>&1 | FileCheck %s --check-prefix=NOPIC-ERR |
| ## Note: ld.bfd can link this file because it rewrites the .eh_frame section to use |
| ## relative addressing. |
| # NOPIC-ERR: ld.lld: error: relocation R_MIPS_64 cannot be used against local symbol |
| |
| ## For -fPIC, .eh_frame should contain DW_EH_PE_pcrel | DW_EH_PE_sdata4 values: |
| # RUN: llvm-mc -filetype=obj -triple=mips64-unknown-linux --position-independent %s -o %t-pic.o |
| # RUN: llvm-readobj -r %t-pic.o | FileCheck %s --check-prefixes=RELOCS,PIC64-RELOCS |
| # RUN: ld.lld -shared %t-pic.o -o %t-pic.so |
| # RUN: llvm-dwarfdump --eh-frame %t-pic.so | FileCheck %s --check-prefix=PIC-EH-FRAME |
| |
| ## Also check MIPS32: |
| # RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux %s -o %t-nopic32.o |
| # RUN: llvm-dwarfdump --eh-frame %t-nopic32.o | FileCheck %s --check-prefix=ABS32-EH-FRAME |
| # RUN: llvm-readobj -r %t-nopic32.o | FileCheck %s --check-prefixes=RELOCS,ABS32-RELOCS |
| # RUN: not ld.lld -shared %t-nopic32.o -o /dev/null 2>&1 | FileCheck %s --check-prefix=NOPIC32-ERR |
| ## Note: ld.bfd can link this file because it rewrites the .eh_frame section to use |
| ## relative addressing. |
| # NOPIC32-ERR: ld.lld: error: relocation R_MIPS_32 cannot be used against local symbol |
| |
| ## For -fPIC, .eh_frame should contain DW_EH_PE_pcrel | DW_EH_PE_sdata4 values: |
| # RUN: llvm-mc -filetype=obj -triple=mips-unknown-linux --position-independent %s -o %t-pic32.o |
| # RUN: llvm-readobj -r %t-pic32.o | FileCheck %s --check-prefixes=RELOCS,PIC32-RELOCS |
| # RUN: ld.lld -shared %t-pic32.o -o %t-pic32.so |
| # RUN: llvm-dwarfdump --eh-frame %t-pic32.so | FileCheck %s --check-prefix=PIC-EH-FRAME |
| |
| # RELOCS: .rel{{a?}}.eh_frame { |
| # ABS32-RELOCS-NEXT: 0x1C R_MIPS_32 .text |
| # ABS64-RELOCS-NEXT: 0x1C R_MIPS_64/R_MIPS_NONE/R_MIPS_NONE .text |
| # PIC64-RELOCS-NEXT: 0x1C R_MIPS_PC32/R_MIPS_NONE/R_MIPS_NONE - |
| # PIC32-RELOCS-NEXT: 0x1C R_MIPS_PC32 - |
| # RELOCS-NEXT: } |
| |
| # ABS64-EH-FRAME: Augmentation data: 0C |
| ## ^^ fde pointer encoding: DW_EH_PE_sdata8 |
| # ABS32-EH-FRAME: Augmentation data: 0B |
| ## ^^ fde pointer encoding: DW_EH_PE_sdata4 |
| # PIC-EH-FRAME: Augmentation data: 1B |
| ## ^^ fde pointer encoding: DW_EH_PE_pcrel | DW_EH_PE_sdata4 |
| ## Note: ld.bfd converts the R_MIPS_64 relocs to DW_EH_PE_pcrel | DW_EH_PE_sdata8 |
| ## for N64 ABI (and DW_EH_PE_pcrel | DW_EH_PE_sdata4 for MIPS32) |
| |
| .ent func |
| .global func |
| func: |
| .cfi_startproc |
| nop |
| .cfi_endproc |
| .end func |