| # REQUIRES: x86 |
| ## Test R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX GOT optimization. |
| |
| # RUN: llvm-mc -filetype=obj -relax-relocations -triple=x86_64-unknown-linux %s -o %t.o |
| # RUN: ld.lld %t.o -o %t1 --no-apply-dynamic-relocs |
| # RUN: llvm-readobj -x .got.plt -r %t1 | FileCheck --check-prefixes=RELOC,NO-APPLY-DYNAMIC-RELOCS %s |
| # RUN: ld.lld %t.o -o %t1 --apply-dynamic-relocs |
| # RUN: llvm-readobj -x .got.plt -r %t1 | FileCheck --check-prefixes=RELOC,APPLY-DYNAMIC-RELOCS %s |
| # RUN: ld.lld %t.o -o %t1 |
| # RUN: llvm-objdump -d %t1 | FileCheck --check-prefix=DISASM %s |
| |
| ## --no-relax disables GOT optimization. |
| # RUN: ld.lld --no-relax %t.o -o %t2 |
| # RUN: llvm-objdump -d %t2 | FileCheck --check-prefix=NORELAX %s |
| |
| ## There is one R_X86_64_IRELATIVE relocations. |
| # RELOC-LABEL: Relocations [ |
| # RELOC-NEXT: Section (1) .rela.dyn { |
| # RELOC-NEXT: 0x202220 R_X86_64_IRELATIVE - 0x201172 |
| # RELOC-NEXT: } |
| # RELOC-NEXT: ] |
| # RELOC-LABEL: Hex dump of section '.got.plt': |
| # NO-APPLY-DYNAMIC-RELOCS-NEXT: 0x00202220 00000000 00000000 |
| # APPLY-DYNAMIC-RELOCS-NEXT: 0x00202220 72112000 00000000 |
| # RELOC-EMPTY: |
| |
| # 0x201173 + 7 - 10 = 0x201170 |
| # 0x20117a + 7 - 17 = 0x201170 |
| # 0x201181 + 7 - 23 = 0x201171 |
| # 0x201188 + 7 - 30 = 0x201171 |
| # DISASM: Disassembly of section .text: |
| # DISASM-EMPTY: |
| # DISASM-NEXT: <foo>: |
| # DISASM-NEXT: 201170: 90 nop |
| # DISASM: <hid>: |
| # DISASM-NEXT: 201171: 90 nop |
| # DISASM: <ifunc>: |
| # DISASM-NEXT: 201172: c3 retq |
| # DISASM: <_start>: |
| # DISASM-NEXT: leaq -10(%rip), %rax |
| # DISASM-NEXT: leaq -17(%rip), %rax |
| # DISASM-NEXT: leaq -23(%rip), %rax |
| # DISASM-NEXT: leaq -30(%rip), %rax |
| # DISASM-NEXT: movq 4234(%rip), %rax |
| # DISASM-NEXT: movq 4227(%rip), %rax |
| # DISASM-NEXT: leaq -52(%rip), %rax |
| # DISASM-NEXT: leaq -59(%rip), %rax |
| # DISASM-NEXT: leaq -65(%rip), %rax |
| # DISASM-NEXT: leaq -72(%rip), %rax |
| # DISASM-NEXT: movq 4192(%rip), %rax |
| # DISASM-NEXT: movq 4185(%rip), %rax |
| # DISASM-NEXT: callq 0x201170 <foo> |
| # DISASM-NEXT: callq 0x201170 <foo> |
| # DISASM-NEXT: callq 0x201171 <hid> |
| # DISASM-NEXT: callq 0x201171 <hid> |
| # DISASM-NEXT: callq *4155(%rip) |
| # DISASM-NEXT: callq *4149(%rip) |
| # DISASM-NEXT: jmp 0x201170 <foo> |
| # DISASM-NEXT: nop |
| # DISASM-NEXT: jmp 0x201170 <foo> |
| # DISASM-NEXT: nop |
| # DISASM-NEXT: jmp 0x201171 <hid> |
| # DISASM-NEXT: nop |
| # DISASM-NEXT: jmp 0x201171 <hid> |
| # DISASM-NEXT: nop |
| # DISASM-NEXT: jmpq *4119(%rip) |
| # DISASM-NEXT: jmpq *4113(%rip) |
| |
| # NORELAX-LABEL: <_start>: |
| # NORELAX-COUNT-12: movq |
| # NORELAX-COUNT-6: callq * |
| # NORELAX-COUNT-6: jmpq * |
| |
| .text |
| .globl foo |
| .type foo, @function |
| foo: |
| nop |
| |
| .globl hid |
| .hidden hid |
| .type hid, @function |
| hid: |
| nop |
| |
| .text |
| .type ifunc STT_GNU_IFUNC |
| .globl ifunc |
| .type ifunc, @function |
| ifunc: |
| ret |
| |
| .globl _start |
| .type _start, @function |
| _start: |
| movq foo@GOTPCREL(%rip), %rax |
| movq foo@GOTPCREL(%rip), %rax |
| movq hid@GOTPCREL(%rip), %rax |
| movq hid@GOTPCREL(%rip), %rax |
| movq ifunc@GOTPCREL(%rip), %rax |
| movq ifunc@GOTPCREL(%rip), %rax |
| movq foo@GOTPCREL(%rip), %rax |
| movq foo@GOTPCREL(%rip), %rax |
| movq hid@GOTPCREL(%rip), %rax |
| movq hid@GOTPCREL(%rip), %rax |
| movq ifunc@GOTPCREL(%rip), %rax |
| movq ifunc@GOTPCREL(%rip), %rax |
| |
| call *foo@GOTPCREL(%rip) |
| call *foo@GOTPCREL(%rip) |
| call *hid@GOTPCREL(%rip) |
| call *hid@GOTPCREL(%rip) |
| call *ifunc@GOTPCREL(%rip) |
| call *ifunc@GOTPCREL(%rip) |
| jmp *foo@GOTPCREL(%rip) |
| jmp *foo@GOTPCREL(%rip) |
| jmp *hid@GOTPCREL(%rip) |
| jmp *hid@GOTPCREL(%rip) |
| jmp *ifunc@GOTPCREL(%rip) |
| jmp *ifunc@GOTPCREL(%rip) |