| // REQUIRES: x86 |
| // RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t.o |
| // RUN: ld.lld %t.o -shared -o %t.so |
| // RUN: llvm-readelf -S %t.so | FileCheck %s -check-prefix=SECTION |
| // RUN: llvm-objdump -d %t.so | FileCheck %s |
| |
| // SECTION: .dynamic DYNAMIC 0000000000002290 |
| // SECTION: .got.plt PROGBITS 0000000000003300 000300 000018 |
| |
| // The assembly is generated by |
| // gcc -O2 -S -mcmodel=medium -fPIC a.c |
| // This computes the pc-relative address (runtime address) of _DYNAMIC. |
| // |
| // extern long _DYNAMIC[] __attribute__((visibility("hidden"))); |
| // long* dynamic() { return _DYNAMIC; } |
| |
| // 0x3300 (.got.plt) - 0x127b = 8325 |
| // 0x2290 (_DYNAMIC) - 0x3300 (.got.plt) = -4208 |
| // CHECK: 1274: {{.*}} leaq 8325(%rip), %rdx |
| // CHECK-NEXT: 127b: {{.*}} movabsq $-4208, %rax |
| .global dynamic |
| dynamic: |
| leaq _GLOBAL_OFFSET_TABLE_(%rip), %rdx |
| movabsq $_DYNAMIC@GOTOFF, %rax |
| addq %rdx, %rax |
| ret |
