# REQUIRES: x86 # RUN: rm -rf %t && split-file %s %t # RUN: llvm-mc -filetype=obj -triple=x86_64 %t/a.s -o %t/a.o # RUN: llvm-mc -filetype=obj -triple=x86_64 %p/Inputs/shared.s -o %t/b.o # RUN: ld.lld -shared -soname=b %t/b.o -o %t/b.so ## With relro or without DATA_SEGMENT_RELRO_END just aligns to ## page boundary. # RUN: ld.lld --hash-style=sysv -z max-page-size=65536 -z norelro %t/a.o %t/b.so -T %t/1.t -o %t/a1 # RUN: llvm-readelf -S -l %t/a1 | FileCheck %s --check-prefixes=CHECK,CHECK1 # RUN: ld.lld --hash-style=sysv -z max-page-size=65536 -z relro --orphan-handling=warn \ # RUN: %t/a.o %t/b.so -T %t/1.t -o %t/a2 2>&1 | FileCheck %s --check-prefix=WARN # RUN: llvm-readelf -S -l %t/a2 | FileCheck %s --check-prefixes=CHECK,CHECK2 # WARN: warning: :(.dynsym) is being placed in '.dynsym' # WARN-NOT: (.relro_padding) # CHECK: Name Type Address Off Size ES Flg # CHECK-NEXT: NULL {{.*}} # CHECK: .orphan.ro PROGBITS {{.*}} A # CHECK: .dynamic DYNAMIC {{.*}} WA # CHECK-NEXT: __libc_atexit PROGBITS {{.*}} WA # CHECK-NEXT: .got PROGBITS {{.*}} WA # CHECK2-NEXT:.relro_padding NOBITS 0000000000010100 010100 000f00 00 WA # CHECK-NEXT: .got.plt PROGBITS {{.*}} WA # CHECK: .orphan.rw PROGBITS {{.*}} WA # CHECK1: Program Headers: # CHECK1-NOT: GNU_RELRO # CHECK2: Program Headers: # CHECK2-NEXT: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align # CHECK2-NEXT: PHDR 0x000040 # CHECK2-NEXT: LOAD 0x000000 # CHECK2-NEXT: LOAD 0x0002b0 # CHECK2-NEXT: LOAD 0x010000 0x0000000000010000 0x0000000000010000 0x000100 0x001000 RW 0x10000 # CHECK2-NEXT: LOAD 0x020000 0x0000000000020000 0x0000000000020000 0x000034 0x000034 RW 0x10000 # CHECK2-NEXT: DYNAMIC 0x010000 0x0000000000010000 0x0000000000010000 0x0000f0 0x0000f0 RW 0x8 # CHECK2-NEXT: GNU_RELRO 0x010000 0x0000000000010000 0x0000000000010000 0x000100 0x001000 R 0x1 # CHECK2-NEXT: GNU_STACK 0x000000 # CHECK2: Section to Segment mapping: # CHECK2: 06 .dynamic __libc_atexit .got .relro_padding {{$}} # RUN: sed '/DATA_SEGMENT_RELRO_END/d' %t/1.t > %t/2.t # RUN: not ld.lld %t/a.o %t/b.so -T %t/2.t -o /dev/null 2>&1 | FileCheck %s --check-prefix=ERR # ERR: error: section: .got is not contiguous with other relro sections #--- a.s .global _start _start: .long bar jmp *bar2@GOTPCREL(%rip) .section .data,"aw" .quad 0 .zero 4 .section .foo,"aw" .section .bss,"",@nobits .section __libc_atexit,"aw",@progbits .dc.a __libc_atexit .section .orphan.ro,"a",@progbits .dc.a 0 .section .orphan.rw,"aw",@progbits .dc.a .orphan.rw #--- 1.t SECTIONS { . = SIZEOF_HEADERS; .plt : { *(.plt) } .text : { *(.text) } . = DATA_SEGMENT_ALIGN (CONSTANT (MAXPAGESIZE), CONSTANT (COMMONPAGESIZE)); .dynamic : { *(.dynamic) } ## The custom section __libc_atexit is made relro. __libc_atexit : { *(__libc_atexit) } .got : { *(.got) } . = DATA_SEGMENT_RELRO_END (1 ? 24 : 0, .); .got.plt : { *(.got.plt) } .data : { *(.data) } .bss : { *(.bss) } . = DATA_SEGMENT_END (.); .comment 0 : { *(.comment) } }