| # REQUIRES: x86 |
| ## Test that various DW_EH_PE_* encodings in CIE are accepted. |
| |
| # RUN: rm -rf %t && split-file %s %t && cd %t |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 absptr.s -o absptr.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 sdata2.s -o sdata2.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 sdata4.s -o sdata4.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 sdata8.s -o sdata8.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 signed.s -o signed.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 udata2.s -o udata2.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 udata4.s -o udata4.o |
| # RUN: llvm-mc -filetype=obj -triple=x86_64 udata8.s -o udata8.o |
| |
| # RUN: ld.lld --eh-frame-hdr sdata2.o -o /dev/null |
| # RUN: ld.lld --eh-frame-hdr sdata8.o -o /dev/null |
| # RUN: ld.lld --eh-frame-hdr signed.o -o /dev/null |
| |
| # RUN: ld.lld --eh-frame-hdr --image-base=0 -Ttext=0x1000 absptr.o -o absptr |
| # RUN: ld.lld --eh-frame-hdr --image-base=0 -Ttext=0x1000 udata2.o -o udata2 |
| # RUN: ld.lld --eh-frame-hdr --image-base=0 -Ttext=0x2000 sdata4.o -o sdata4 |
| # RUN: ld.lld --eh-frame-hdr --image-base=0 -Ttext=0x2000 udata4.o -o udata4 |
| |
| ## absptr/udata2: Also verify .eh_frame content to test relocation with addend. |
| ## .eh_frame_hdr initial_location: foo(0x1000)+0x234 - .eh_frame_hdr(0x2004) = 0xfffff230 |
| # RUN: llvm-readobj -x .eh_frame_hdr -x .eh_frame absptr | FileCheck %s --check-prefix=ABSPTR |
| # ABSPTR: Hex dump of section '.eh_frame_hdr': |
| # ABSPTR-NEXT: 0x00002004 011b033b 10000000 01000000 30f2ffff |
| # ABSPTR-NEXT: 0x00002014 24000000 |
| # ABSPTR: Hex dump of section '.eh_frame': |
| # ABSPTR-NEXT: 0x00002018 0c000000 00000000 01520001 010100ff |
| # ABSPTR-NEXT: 0x00002028 0c000000 14000000 34120000 00000000 |
| ## CIE offset--^ ^-- PC begin = 0x1234 (foo + 0x234) |
| |
| # RUN: llvm-readobj -x .eh_frame_hdr -x .eh_frame udata2 | FileCheck %s --check-prefix=UDATA2 |
| # UDATA2: Hex dump of section '.eh_frame_hdr': |
| # UDATA2-NEXT: 0x00002004 011b033b 10000000 01000000 30f2ffff |
| # UDATA2-NEXT: 0x00002014 26000000 |
| # UDATA2: Hex dump of section '.eh_frame': |
| # UDATA2-NEXT: 0x00002018 0e000000 00000000 01525300 01010102 |
| # UDATA2-NEXT: 0x00002028 ff000600 00001600 00003412 |
| ## CIE offset--^ ^-- PC begin = 0x1234 (foo + 0x234) |
| |
| # RUN: llvm-readelf -x .eh_frame_hdr sdata4 udata4 | FileCheck %s --check-prefix=HDR4 |
| # HDR4: 0x00003004 011b033b 10000000 01000000 fcefffff |
| # HDR4-NEXT: 0x00003014 24000000 |
| # HDR4: 0x00003004 011b033b 10000000 01000000 fcefffff |
| # HDR4-NEXT: 0x00003014 24000000 |
| |
| #--- absptr.s |
| ## DW_EH_PE_absptr (0x00) with FDE for verification |
| .text |
| .globl foo |
| foo: |
| nop |
| |
| .section .eh_frame,"a",@unwind |
| .long 12 # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x52 # Augmentation string: 'R','\0' |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment |
| .byte 0x01 # Return address register |
| .byte 0x00 # DW_EH_PE_absptr |
| .byte 0xFF |
| |
| .long 12 # Size |
| .long 0x14 # CIE offset |
| .quad foo + 0x234 # PC begin |
| |
| #--- sdata2.s |
| ## DW_EH_PE_sdata2 (0x0A) |
| .section .eh_frame,"a",@unwind |
| .long 0x0E # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x50 # Augmentation string: 'P','\0' |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment (LEB128) |
| .byte 0x01 # Return address register (LEB128) |
| .byte 0x0A # DW_EH_PE_sdata2 |
| .short 0xFFFF |
| .byte 0xFF |
| |
| #--- sdata4.s |
| ## DW_EH_PE_sdata4 (0x0B) with FDE for verification |
| .text |
| .globl foo |
| foo: |
| nop |
| |
| .section .eh_frame,"a",@unwind |
| .long 12 # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x52 # Augmentation string: 'R','\0' |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment |
| .byte 0x01 # Return address register |
| .byte 0x0B # DW_EH_PE_sdata4 |
| .byte 0xFF |
| |
| .long 12 # Size |
| .long 0x14 # CIE offset |
| .long foo # PC begin |
| .long 1 # PC range |
| |
| #--- sdata8.s |
| ## DW_EH_PE_sdata8 (0x0C) |
| .section .eh_frame,"a",@unwind |
| .long 0x14 # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x50 # Augmentation string: 'P','\0' |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment (LEB128) |
| .byte 0x01 # Return address register (LEB128) |
| .byte 0x0C # DW_EH_PE_sdata8 |
| .quad 0xFFFFFFFFFFFFFFFF |
| .byte 0xFF |
| |
| #--- signed.s |
| ## DW_EH_PE_signed (0x08) |
| .section .eh_frame,"a",@unwind |
| .long 0x14 # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x50 # Augmentation string: 'P','\0' |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment (LEB128) |
| .byte 0x01 # Return address register (LEB128) |
| .byte 0x08 # DW_EH_PE_signed |
| .quad 0xFFFFFFFFFFFFFFFF |
| .byte 0xFF |
| |
| #--- udata2.s |
| ## DW_EH_PE_udata2 (0x02) with FDE for verification |
| .text |
| .globl foo |
| foo: |
| nop |
| |
| .section .eh_frame,"a",@unwind |
| .long 14 # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x52 # Augmentation string: 'R','S','\0' |
| .byte 0x53 |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment |
| .byte 0x01 # Return address register |
| .byte 0x02 # DW_EH_PE_udata2 |
| .byte 0xFF |
| .byte 0x00 |
| |
| .long 6 # Size |
| .long 0x16 # CIE offset |
| .short foo + 0x234 # PC begin |
| |
| #--- udata4.s |
| ## DW_EH_PE_udata4 (0x03) with FDE for verification |
| .text |
| .globl foo |
| foo: |
| nop |
| |
| .section .eh_frame,"a",@unwind |
| .long 12 # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x52 # Augmentation string: 'R','\0' |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment |
| .byte 0x01 # Return address register |
| .byte 0x03 # DW_EH_PE_udata4 |
| .byte 0xFF |
| |
| .long 12 # Size |
| .long 0x14 # CIE offset |
| .long foo # PC begin |
| .long 1 # PC range |
| |
| #--- udata8.s |
| ## DW_EH_PE_udata8 (0x04) |
| .section .eh_frame,"a",@unwind |
| .long 0x14 # Size |
| .long 0x00 # ID (CIE) |
| .byte 0x01 # Version |
| .byte 0x50 # Augmentation string: 'P','\0' |
| .byte 0x00 |
| .byte 0x01 # Code alignment |
| .byte 0x01 # Data alignment (LEB128) |
| .byte 0x01 # Return address register (LEB128) |
| .byte 0x04 # DW_EH_PE_udata8 |
| .quad 0xFFFFFFFFFFFFFFFF |
| .byte 0xFF |
