| # REQUIRES: x86 |
| |
| ## Testcase checks that we correctly deduplicate FDEs when ICF |
| ## merges two sections. |
| |
| # RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t |
| # RUN: ld.lld %t -o %t2 --icf=all --eh-frame-hdr |
| # RUN: llvm-readobj -r %t | FileCheck %s --check-prefix=OBJ |
| # RUN: llvm-readobj -S --section-data %t2 | FileCheck %s |
| |
| # OBJ: Relocations [ |
| # OBJ-NEXT: Section {{.*}} .rela.eh_frame { |
| # OBJ-NEXT: 0x20 R_X86_64_PC32 .text.f1 0x0 |
| # OBJ-NEXT: 0x34 R_X86_64_PC32 .text.f1 0x2 |
| # OBJ-NEXT: 0x48 R_X86_64_PC32 .text.f2 0x0 |
| # OBJ-NEXT: 0x5C R_X86_64_PC32 .text.f2 0x2 |
| # OBJ-NEXT: } |
| # OBJ-NEXT: ] |
| |
| # CHECK: Section { |
| # CHECK: Index: 1 |
| # CHECK: Name: .eh_frame_hdr |
| # CHECK-NEXT: Type: SHT_PROGBITS |
| # CHECK-NEXT: Flags [ |
| # CHECK-NEXT: SHF_ALLOC |
| # CHECK-NEXT: ] |
| # CHECK-NEXT: Address: 0x200158 |
| # CHECK-NEXT: Offset: 0x158 |
| # CHECK-NEXT: Size: 28 |
| # CHECK-NEXT: Link: 0 |
| # CHECK-NEXT: Info: 0 |
| # CHECK-NEXT: AddressAlignment: |
| # CHECK-NEXT: EntrySize: 0 |
| # CHECK-NEXT: SectionData ( |
| # CHECK-NEXT: 0000: 011B033B 1C000000 02000000 6C100000 |
| ## ^ ^-- FDE(1) PC |
| ## ^-- Number of FDEs |
| # CHECK-NEXT: 0010: 38000000 6E100000 50000000 |
| ## ^-- FDE(2) PC |
| # CHECK-NEXT: ) |
| # CHECK-NEXT: } |
| ## FDE(1) == 0x201000 - .eh_frame_hdr(0x200158) = 0xEA8 |
| ## FDE(2) == 0x201000 - .eh_frame_hdr(0x200158) + 2(relocation addend) = 0xEAA |
| |
| ## Check .eh_frame contains CIE and two FDEs remaining after ICF. |
| # CHECK-NEXT: Section { |
| # CHECK-NEXT: Index: 2 |
| # CHECK-NEXT: Name: .eh_frame |
| # CHECK-NEXT: Type: SHT_PROGBITS |
| # CHECK-NEXT: Flags [ |
| # CHECK-NEXT: SHF_ALLOC |
| # CHECK-NEXT: ] |
| # CHECK-NEXT: Address: 0x200178 |
| # CHECK-NEXT: Offset: 0x178 |
| # CHECK-NEXT: Size: 76 |
| # CHECK-NEXT: Link: 0 |
| # CHECK-NEXT: Info: 0 |
| # CHECK-NEXT: AddressAlignment: 8 |
| # CHECK-NEXT: EntrySize: 0 |
| # CHECK-NEXT: SectionData ( |
| # CHECK-NEXT: 0000: 14000000 00000000 017A5200 01781001 |
| # CHECK-NEXT: 0010: 1B0C0708 90010000 14000000 1C000000 |
| # CHECK-NEXT: 0020: 2C100000 01000000 00000000 00000000 |
| # CHECK-NEXT: 0030: 14000000 34000000 16100000 01000000 |
| # CHECK-NEXT: 0040: 00000000 00000000 00000000 |
| # CHECK-NEXT: ) |
| # CHECK-NEXT: } |
| |
| # CHECK: Section { |
| # CHECK: Index: |
| # CHECK: Name: .text |
| # CHECK-NEXT: Type: SHT_PROGBITS |
| # CHECK-NEXT: Flags [ |
| # CHECK-NEXT: SHF_ALLOC |
| # CHECK-NEXT: SHF_EXECINSTR |
| # CHECK-NEXT: ] |
| # CHECK-NEXT: Address: 0x2011C4 |
| |
| .section .text.f1, "ax" |
| .cfi_startproc |
| nop |
| .cfi_endproc |
| nop |
| .cfi_startproc |
| ret |
| .cfi_endproc |
| |
| .section .text.f2, "ax" |
| .cfi_startproc |
| nop |
| .cfi_endproc |
| nop |
| .cfi_startproc |
| ret |
| .cfi_endproc |