lld/test/ELF/linkerscript/data-segment-relro.test

# 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: <internal>:(.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) }
}