# REQUIRES: x86 # RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o # RUN: ld.lld --eh-frame-hdr --section-start .text=0x1000 %t.o -o %t # RUN: llvm-readobj -s -section-data %t | FileCheck %s ## Check we are able to handle DW_EH_PE_udata2 encoding. # 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: 0x2000 # CHECK-NEXT: Offset: 0x2000 # 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 10000000 01000000 34F2FFFF # CHECK-NEXT: 0010: 24000000 # Header (always 4 bytes): 011B033B # 10000000 = .eh_frame(0x2014) - .eh_frame_hdr(0x2000) - 4 # 01000000 = 1 = the number of FDE pointers in the table. # 34F2FFFF = foo(0x1000) - 0x234(addend) - .eh_frame_hdr(0x2000) # 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: 0x2014 # CHECK-NEXT: Offset: 0x2014 # CHECK-NEXT: Size: # CHECK-NEXT: Link: # CHECK-NEXT: Info: # CHECK-NEXT: AddressAlignment: # CHECK-NEXT: EntrySize: # CHECK-NEXT: SectionData ( # CHECK-NEXT: 0000: 0C000000 00000000 01520001 010102FF # CHECK-NEXT: 0010: 0C000000 14000000 34120000 00000000 # ^ # ---> ADDR(foo) + 0x234 = 0x1234 .text .global foo foo: nop .section .eh_frame .long 12 # Size .long 0x00 # ID .byte 0x01 # Version. .byte 0x52 # Augmentation string: 'R','\0' .byte 0x00 .byte 0x01 .byte 0x01 # LEB128 .byte 0x01 # LEB128 .byte 0x02 # DW_EH_PE_udata2 .byte 0xFF .long 0x6 # Size .long 0x14 # ID .short foo + 0x234