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| # REQUIRES: x86
# Test handling of FDE pc negative relative addressing with DW_EH_PE_sdata8.
# This situation can arise when .eh_frame is placed after .text.
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o
# RUN: echo "SECTIONS { .text : { *(.text) } .eh_frame : { *(.eh_frame) } }" > %t.script
# RUN: ld.lld --eh-frame-hdr --script %t.script --section-start .text=0x1000 %t.o -o %t
# RUN: llvm-readobj -S --section-data %t | FileCheck %s
# CHECK: Section {
# CHECK: Index:
# CHECK: Name: .eh_frame
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0x1001
# CHECK-NEXT: Offset: 0x1001
# CHECK-NEXT: Size:
# CHECK-NEXT: Link:
# CHECK-NEXT: Info:
# CHECK-NEXT: AddressAlignment:
# CHECK-NEXT: EntrySize:
# CHECK-NEXT: SectionData (
# CHECK-NEXT: 0000: 14000000 00000000 017A5200 01010101
# CHECK-NEXT: 0010: 1C000000 00000000 14000000 1C000000
# CHECK-NEXT: 0020: DFFFFFFF FFFFFFFF
# ^
# DFFFFFFF FFFFFFFF = _start(0x1000) - PC(.eh_frame(0x1001) + 0x20)
# CHECK: Section {
# CHECK: Index:
# CHECK: Name: .eh_frame_hdr
# CHECK-NEXT: Type: SHT_PROGBITS
# CHECK-NEXT: Flags [
# CHECK-NEXT: SHF_ALLOC
# CHECK-NEXT: ]
# CHECK-NEXT: Address: 0x1038
# CHECK-NEXT: Offset: 0x1038
# CHECK-NEXT: Size: 20
# CHECK-NEXT: Link: 0
# CHECK-NEXT: Info: 0
# CHECK-NEXT: AddressAlignment: 4
# CHECK-NEXT: EntrySize: 0
# CHECK-NEXT: SectionData (
# CHECK-NEXT: 0000: 011B033B C5FFFFFF 01000000 C8FFFFFF
# CHECK-NEXT: 0010: E1FFFFFF
# Header (always 4 bytes): 011B033B
# C5FFFFFF = .eh_frame(0x1001) - .eh_frame_hdr(0x1038) - 4
# 01000000 = 1 = the number of FDE pointers in the table.
# C8FFFFFF = _start(0x1000) - .eh_frame_hdr(0x1038)
# E1FFFFFF = FDE(.eh_frame(0x1001) + 0x18) - .eh_frame_hdr(0x1038)
.text
.global _start
_start:
nop
.section .eh_frame, "a"
.long 16 # Size
.long 0x00 # ID
.byte 0x01 # Version.
.byte 0x7A # Augmentation string: "zR"
.byte 0x52
.byte 0x00
.byte 0x01
.byte 0x01 # LEB128
.byte 0x01 # LEB128
.byte 0x01 # LEB128
.byte 0x1C # DW_EH_PE_pcrel | DW_EH_PE_sdata8
.byte 0x00
.byte 0x00
.byte 0x00
.long 16 # Size
.long 24 # ID
fde:
.quad _start - fde
.long 0
|