| # REQUIRES: x86 |
| # RUN: llvm-mc -filetype=obj -triple=i386 %s -o %t.o |
| # RUN: echo '.tbss; .globl c; c: .zero 4' | llvm-mc -filetype=obj -triple=i386 - -o %t1.o |
| # RUN: ld.lld -shared -soname=t1.so %t1.o -o %t1.so |
| |
| # RUN: ld.lld -shared -z now %t.o %t1.o -o %t.so |
| # RUN: llvm-readobj -r -x .got %t.so | FileCheck --check-prefix=GD-REL %s |
| # RUN: llvm-objdump -h -d --no-show-raw-insn %t.so | FileCheck --check-prefix=GD %s |
| |
| # RUN: ld.lld -shared -z now %t.o %t1.o -o %t-rela.so -z rela |
| # RUN: llvm-readobj -r -x .got %t-rela.so | FileCheck --check-prefix=GD-RELA %s |
| |
| # RUN: ld.lld -z now %t.o %t1.o -o %t |
| # RUN: llvm-readelf -r %t | FileCheck --check-prefix=NOREL %s |
| # RUN: llvm-objdump -h -d --no-show-raw-insn %t | FileCheck --check-prefix=LE %s |
| |
| # RUN: ld.lld -z now %t.o %t1.so -o %t |
| # RUN: llvm-readobj -r %t | FileCheck --check-prefix=IE-REL %s |
| # RUN: llvm-objdump -h -d --no-show-raw-insn %t | FileCheck --check-prefix=IE %s |
| |
| # GD-REL: .rel.dyn { |
| # GD-REL-NEXT: 0x2250 R_386_TLS_DESC - |
| # GD-REL-NEXT: 0x2248 R_386_TLS_DESC a |
| # GD-REL-NEXT: 0x2258 R_386_TLS_DESC c |
| # GD-REL-NEXT: } |
| # GD-REL: Hex dump of section '.got': |
| # GD-REL-NEXT: 0x00002248 00000000 00000000 00000000 0b000000 |
| # GD-REL-NEXT: 0x00002258 00000000 00000000 |
| |
| # GD-RELA: .rela.dyn { |
| # GD-RELA-NEXT: 0x225C R_386_TLS_DESC - 0xB |
| # GD-RELA-NEXT: 0x2254 R_386_TLS_DESC a 0x0 |
| # GD-RELA-NEXT: 0x2264 R_386_TLS_DESC c 0x0 |
| # GD-RELA-NEXT: } |
| # GD-RELA: Hex dump of section '.got': |
| # GD-RELA-NEXT: 0x00002254 00000000 00000000 00000000 00000000 |
| # GD-RELA-NEXT: 0x00002264 00000000 00000000 |
| |
| # GD: .got 00000018 00002248 |
| # GD: .got.plt 0000000c 00002260 |
| |
| # &.rel.dyn[a]-.got.plt = 0x2248-0x2260 = -24 |
| # GD: leal -24(%ebx), %eax |
| # GD-NEXT: calll *(%eax) |
| # GD-NEXT: movl %gs:(%eax), %eax |
| |
| # &.rel.dyn[b]-.got.plt = 0x2250-0x2260 = -16 |
| # GD-NEXT: leal -16(%ebx), %eax |
| # GD-NEXT: movl %edx, %ebx |
| # GD-NEXT: calll *(%eax) |
| # GD-NEXT: movl %gs:(%eax), %eax |
| |
| # &.rel.dyn[c]-.got.plt = 0x2258-0x2260 = -8 |
| # GD-NEXT: leal -8(%ebx), %eax |
| # GD-NEXT: calll *(%eax) |
| # GD-NEXT: movl %gs:(%eax), %eax |
| |
| # NOREL: no relocations |
| |
| ## st_value(a) - tls_size = -8 |
| # LE: leal -8, %eax |
| # LE-NEXT: nop |
| # LE-NEXT: movl %gs:(%eax), %eax |
| ## st_value(b) - tls_size = -5 |
| # LE: leal -5, %eax |
| # LE-NEXT: movl %edx, %ebx |
| # LE-NEXT: nop |
| # LE-NEXT: movl %gs:(%eax), %eax |
| ## st_value(c) - tls_size = -4 |
| # LE: leal -4, %eax |
| # LE-NEXT: nop |
| # LE-NEXT: movl %gs:(%eax), %eax |
| |
| # IE-REL: .rel.dyn { |
| # IE-REL-NEXT: 0x40222C R_386_TLS_TPOFF c |
| # IE-REL-NEXT: } |
| |
| # IE: .got 00000004 0040222c |
| # IE: .got.plt 0000000c 00402230 |
| |
| ## a and b are relaxed to use LE. |
| # IE: leal -4, %eax |
| # IE-NEXT: nop |
| # IE-NEXT: movl %gs:(%eax), %eax |
| # IE-NEXT: leal -1, %eax |
| # IE-NEXT: movl %edx, %ebx |
| # IE-NEXT: nop |
| # IE-NEXT: movl %gs:(%eax), %eax |
| ## &.got[a]-.got.plt = 0x2220 - 0x2224 = -4 |
| # IE-NEXT: movl -4(%ebx), %eax |
| # IE-NEXT: nop |
| # IE-NEXT: movl %gs:(%eax), %eax |
| |
| leal a@tlsdesc(%ebx), %eax |
| call *a@tlscall(%eax) |
| movl %gs:(%eax), %eax |
| |
| leal b@tlsdesc(%ebx), %eax |
| movl %edx, %ebx # GCC -O0 may add an extra insn in between. |
| call *b@tlscall(%eax) |
| movl %gs:(%eax), %eax |
| |
| leal c@tlsdesc(%ebx), %eax |
| call *c@tlscall(%eax) |
| movl %gs:(%eax), %eax |
| |
| .section .tbss |
| .globl a |
| .zero 8 |
| a: |
| .zero 3 |
| b: |
| .zero 1 |