File: openbsd-randomize.s

package info (click to toggle)
llvm-toolchain-7 1%3A7.0.1-8
  • links: PTS, VCS
  • area: main
  • in suites: buster
  • size: 733,456 kB
  • sloc: cpp: 3,776,651; ansic: 633,271; asm: 350,301; python: 142,716; objc: 107,612; sh: 22,626; lisp: 11,056; perl: 7,999; pascal: 6,742; ml: 5,537; awk: 3,536; makefile: 2,557; cs: 2,027; xml: 841; ruby: 156
file content (24 lines) | stat: -rw-r--r-- 847 bytes parent folder | download | duplicates (3)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=i686-unknown-linux %s -o %t.o
# RUN: echo "PHDRS { text PT_LOAD FILEHDR PHDRS; rand PT_OPENBSD_RANDOMIZE; } \
# RUN:       SECTIONS { . = SIZEOF_HEADERS; \
# RUN:         .text : { *(.text) } \
# RUN:         .openbsd.randomdata : { *(.openbsd.randomdata) } : rand }" > %t.script
# RUN: ld.lld --script %t.script %t.o -o %t
# RUN: llvm-readobj --program-headers -s %t | FileCheck %s

# CHECK:      ProgramHeader {
# CHECK:        Type: PT_OPENBSD_RANDOMIZE (0x65A3DBE6)
# CHECK-NEXT:   Offset: 0x74
# CHECK-NEXT:   VirtualAddress: 0x74
# CHECK-NEXT:   PhysicalAddress: 0x74
# CHECK-NEXT:   FileSize: 8
# CHECK-NEXT:   MemSize: 8
# CHECK-NEXT:   Flags [ (0x4)
# CHECK-NEXT:     PF_R (0x4)
# CHECK-NEXT:   ]
# CHECK-NEXT:   Alignment: 1
# CHECK-NEXT: }

.section .openbsd.randomdata, "a"
.quad 0