1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139
|
// REQUIRES: x86
// RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
// RUN: ld.lld %t.o -o %t
// RUN: llvm-readobj --file-headers -S --section-data -l --symbols %t \
// RUN: | FileCheck %s --check-prefix=NOHDR
// RUN: ld.lld -eh-frame-hdr -no-eh-frame-hdr %t.o -o %t
// RUN: llvm-readobj --file-headers -S --section-data -l --symbols %t \
// RUN: | FileCheck %s --check-prefix=NOHDR
// RUN: ld.lld --eh-frame-hdr %t.o -o %t
// RUN: llvm-readobj --file-headers -S --section-data -l --symbols %t \
// RUN: | FileCheck %s --check-prefix=HDR
// RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=HDRDISASM
.section foo,"ax",@progbits
.cfi_startproc
nop
.cfi_endproc
.section bar,"ax",@progbits
.cfi_startproc
nop
.cfi_endproc
.section dah,"ax",@progbits
.cfi_startproc
nop
.cfi_endproc
.text
.globl _start
_start:
// NOHDR: Sections [
// NOHDR-NOT: Name: .eh_frame_hdr
// NOHDR: ProgramHeaders [
// NOHDR-NOT: PT_GNU_EH_FRAME
// HDRDISASM: Disassembly of section foo:
// HDRDISASM-EMPTY:
// HDRDISASM-NEXT: <foo>:
// HDRDISASM-NEXT: 2011dc: 90 nop
// HDRDISASM-EMPTY:
// HDRDISASM-NEXT: Disassembly of section bar:
// HDRDISASM-EMPTY:
// HDRDISASM-NEXT: <bar>:
// HDRDISASM-NEXT: 2011dd: 90 nop
// HDRDISASM-EMPTY:
// HDRDISASM-NEXT: Disassembly of section dah:
// HDRDISASM-EMPTY:
// HDRDISASM-NEXT: <dah>:
// HDRDISASM-NEXT: 2011de: 90 nop
// HDR: Section {
// HDR: Index:
// HDR: Name: .eh_frame_hdr
// HDR-NEXT: Type: SHT_PROGBITS
// HDR-NEXT: Flags [
// HDR-NEXT: SHF_ALLOC
// HDR-NEXT: ]
// HDR-NEXT: Address: 0x200158
// HDR-NEXT: Offset: 0x158
// HDR-NEXT: Size: 36
// HDR-NEXT: Link: 0
// HDR-NEXT: Info: 0
// HDR-NEXT: AddressAlignment: 4
// HDR-NEXT: EntrySize: 0
// HDR-NEXT: SectionData (
// HDR-NEXT: 0000: 011B033B 24000000 03000000 84100000
// HDR-NEXT: 0010: 40000000 85100000 54000000 86100000
// HDR-NEXT: 0020: 68000000
// HDR-NEXT: )
// Header (always 4 bytes): 0x011B033B
// 24000000 = .eh_frame(0x200180) - .eh_frame_hdr(0x200158) - 4
// 03000000 = 3 = the number of FDE pointers in the table.
// Entry(1): 8C100000 40000000
// 480E0000 = 0x2011e4 - .eh_frame_hdr(0x200158) = 0x108C
// 40000000 = address of FDE(1) - .eh_frame_hdr(0x200158) =
// = .eh_frame(0x200180) + 24 - 0x200158 = 0x40
// Entry(2): 8D100000 58000000
// A90E0000 = 0x2011e5 - .eh_frame_hdr(0x200158) = 0x108D
// 58000000 = address of FDE(2) - .eh_frame_hdr(0x200158) =
// = .eh_frame(0x200180) + 24 + 24 - 0x200158 = 0x58
// Entry(3): 8E100000 70000000
// AA0E0000 = 0x2011e6 - .eh_frame_hdr(0x200158) = 0x108E
// 70000000 = address of FDE(3) - .eh_frame_hdr(0x200158) =
// = .eh_frame(0x200180) + 24 + 24 + 24 - 0x200158 = 0x70
// HDR-NEXT: }
// HDR-NEXT: Section {
// HDR-NEXT: Index:
// HDR-NEXT: Name: .eh_frame
// HDR-NEXT: Type: SHT_PROGBITS
// HDR-NEXT: Flags [
// HDR-NEXT: SHF_ALLOC
// HDR-NEXT: ]
// HDR-NEXT: Address: 0x200180
// HDR-NEXT: Offset: 0x180
// HDR-NEXT: Size: 92
// HDR-NEXT: Link: 0
// HDR-NEXT: Info: 0
// HDR-NEXT: AddressAlignment: 8
// HDR-NEXT: EntrySize: 0
// HDR-NEXT: SectionData (
// HDR-NEXT: 0000: 14000000 00000000 017A5200 01781001
// HDR-NEXT: 0010: 1B0C0708 90010000 10000000 1C000000
// HDR-NEXT: 0020: 3C100000 01000000 00000000 10000000
// HDR-NEXT: 0030: 30000000 29100000 01000000 00000000
// HDR-NEXT: 0040: 14000000 44000000 16100000 01000000
// HDR-NEXT: 0050: 00000000 00000000 00000000
// HDR-NEXT: )
// CIE: 14000000 00000000 017A5200 01781001 1B0C0708 90010000
// FDE(1): 14000000 1C000000 600E0000 01000000 00000000 00000000
// address of data (starts with 0x600E0000) = 0x200180 + 0x0020 = 0x2001A0
// The starting address to which this FDE applies = 0xE60 + 0x2001A0 = 0x201000
// The number of bytes after the start address to which this FDE applies = 0x01000000 = 1
// FDE(2): 14000000 34000000 490E0000 01000000 00000000 00000000
// address of data (starts with 0x490E0000) = 0x200180 + 0x0038 = 0x2001B8
// The starting address to which this FDE applies = 0xE49 + 0x2001B8 = 0x201001
// The number of bytes after the start address to which this FDE applies = 0x01000000 = 1
// FDE(3): 14000000 4C000000 320E0000 01000000 00000000 00000000
// address of data (starts with 0x320E0000) = 0x200180 + 0x0050 = 0x2001D0
// The starting address to which this FDE applies = 0xE5A + 0x2001D0 = 0x201002
// The number of bytes after the start address to which this FDE applies = 0x01000000 = 1
// HDR-NEXT: }
// HDR: ProgramHeaders [
// HDR: ProgramHeader {
// HDR: Type: PT_GNU_EH_FRAME
// HDR-NEXT: Offset: 0x158
// HDR-NEXT: VirtualAddress: 0x200158
// HDR-NEXT: PhysicalAddress: 0x200158
// HDR-NEXT: FileSize: 36
// HDR-NEXT: MemSize: 36
// HDR-NEXT: Flags [
// HDR-NEXT: PF_R
// HDR-NEXT: ]
// HDR-NEXT: Alignment: 4
// HDR-NEXT: }
|