forked from OSchip/llvm-project
96 lines
2.6 KiB
ArmAsm
96 lines
2.6 KiB
ArmAsm
# REQUIRES: x86
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## Testcase checks that we correctly deduplicate FDEs when ICF
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## merges two sections.
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# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t
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# RUN: ld.lld %t -o %t2 --icf=all --eh-frame-hdr
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# RUN: llvm-readobj -r %t | FileCheck %s --check-prefix=OBJ
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# RUN: llvm-readobj -s -section-data %t2 | FileCheck %s
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# OBJ: Relocations [
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# OBJ-NEXT: Section {{.*}} .rela.eh_frame {
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# OBJ-NEXT: 0x20 R_X86_64_PC32 .text.f1 0x0
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# OBJ-NEXT: 0x34 R_X86_64_PC32 .text.f1 0x2
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# OBJ-NEXT: 0x48 R_X86_64_PC32 .text.f2 0x0
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# OBJ-NEXT: 0x5C R_X86_64_PC32 .text.f2 0x2
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# OBJ-NEXT: }
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# OBJ-NEXT: ]
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# CHECK: Section {
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# CHECK: Index: 1
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# CHECK: Name: .eh_frame_hdr
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# CHECK-NEXT: Type: SHT_PROGBITS
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# CHECK-NEXT: Flags [
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# CHECK-NEXT: SHF_ALLOC
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# CHECK-NEXT: ]
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# CHECK-NEXT: Address: 0x200158
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# CHECK-NEXT: Offset: 0x158
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# CHECK-NEXT: Size: 28
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# CHECK-NEXT: Link: 0
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# CHECK-NEXT: Info: 0
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# CHECK-NEXT: AddressAlignment:
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# CHECK-NEXT: EntrySize: 0
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# CHECK-NEXT: SectionData (
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# CHECK-NEXT: 0000: 011B033B 1C000000 02000000 A80E0000
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## ^ ^-- FDE(1) PC
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## ^-- Number of FDEs
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# CHECK-NEXT: 0010: 38000000 AA0E0000 50000000
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## ^-- FDE(2) PC
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# CHECK-NEXT: )
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# CHECK-NEXT: }
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## FDE(1) == 0x201000 - .eh_frame_hdr(0x200158) = 0xEA8
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## FDE(2) == 0x201000 - .eh_frame_hdr(0x200158) + 2(relocation addend) = 0xEAA
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## Check .eh_frame contains CIE and two FDEs remaining after ICF.
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# CHECK-NEXT: Section {
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# CHECK-NEXT: Index: 2
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# CHECK-NEXT: Name: .eh_frame
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# CHECK-NEXT: Type: SHT_PROGBITS
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# CHECK-NEXT: Flags [
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# CHECK-NEXT: SHF_ALLOC
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# CHECK-NEXT: ]
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# CHECK-NEXT: Address: 0x200178
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# CHECK-NEXT: Offset: 0x178
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# CHECK-NEXT: Size: 72
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# CHECK-NEXT: Link: 0
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# CHECK-NEXT: Info: 0
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# CHECK-NEXT: AddressAlignment: 8
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# CHECK-NEXT: EntrySize: 0
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# CHECK-NEXT: SectionData (
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# CHECK-NEXT: 0000: 14000000 00000000 017A5200 01781001
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# CHECK-NEXT: 0010: 1B0C0708 90010000 14000000 1C000000
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# CHECK-NEXT: 0020: 680E0000 01000000 00000000 00000000
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# CHECK-NEXT: 0030: 14000000 34000000 520E0000 01000000
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# CHECK-NEXT: 0040: 00000000 00000000
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# CHECK-NEXT: )
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# CHECK-NEXT: }
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# CHECK: Section {
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# CHECK: Index:
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# CHECK: Name: .text
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# CHECK-NEXT: Type: SHT_PROGBITS
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# CHECK-NEXT: Flags [
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# CHECK-NEXT: SHF_ALLOC
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# CHECK-NEXT: SHF_EXECINSTR
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# CHECK-NEXT: ]
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# CHECK-NEXT: Address: 0x201000
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.section .text.f1, "ax"
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.cfi_startproc
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nop
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.cfi_endproc
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nop
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.cfi_startproc
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ret
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.cfi_endproc
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.section .text.f2, "ax"
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.cfi_startproc
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nop
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.cfi_endproc
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nop
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.cfi_startproc
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ret
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.cfi_endproc
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