| # REQUIRES: x86 |
| |
| ## i386-got32x-baseless.elf is a file produced using GNU as v.2.27 |
| ## using following code and command line: |
| ## (as --32 -o base.o base.s) |
| ## |
| ## .text |
| ## .globl foo |
| ## .type foo, @function |
| ## foo: |
| ## nop |
| ## |
| ## _start: |
| ## movl foo@GOT, %eax |
| ## movl foo@GOT, %ebx |
| ## movl foo@GOT(%eax), %eax |
| ## movl foo@GOT(%ebx), %eax |
| ## |
| ## Result file contains four R_386_GOT32X relocations. Generated code |
| ## is also a four mov instructions. And first two has no base register: |
| ## <_start>: |
| ## 1: 8b 05 00 00 00 00 mov 0x0,%eax |
| ## 7: 8b 1d 00 00 00 00 mov 0x0,%ebx |
| ## d: 8b 80 00 00 00 00 mov 0x0(%eax),%eax |
| ## 13: 8b 83 00 00 00 00 mov 0x0(%ebx),%eax |
| ## |
| ## R_386_GOT32X is computed as G + A - GOT, but if it used without base |
| ## register, it should be calculated as G + A. Using without base register |
| ## is only allowed for non-PIC code. |
| ## |
| # RUN: ld.lld %S/Inputs/i386-got32x-baseless.elf -o %t1 |
| # RUN: llvm-objdump --section-headers -d %t1 | FileCheck %s |
| |
| ## 73728 == 0x12000 == ADDR(.got) |
| # CHECK: Sections: |
| # CHECK: Name Size VMA |
| # CHECK: .got.plt 0000000c 00403134 |
| # CHECK: <_start>: |
| # CHECK-NEXT: 401115: 8b 05 {{.*}} movl 4202800, %eax |
| # CHECK-NEXT: 40111b: 8b 1d {{.*}} movl 4202800, %ebx |
| # CHECK-NEXT: 401121: 8b 80 {{.*}} movl -4100(%eax), %eax |
| # CHECK-NEXT: 401127: 8b 83 {{.*}} movl -4100(%ebx), %eax |
| |
| # RUN: not ld.lld %S/Inputs/i386-got32x-baseless.elf -o /dev/null -pie 2>&1 | \ |
| # RUN: FileCheck %s --check-prefix=ERR |
| # ERR-COUNT-2: error: symbol 'foo' cannot be preempted; recompile with -fPIE |
