hexagon-tls-gd-nonpreemptible.s
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# REQUIRES: hexagon
# RUN: llvm-mc -filetype=obj -triple=hexagon-unknown-elf %s -o %t.o
# RUN: ld.lld -shared %t.o -o %t.so
# RUN: llvm-readobj -r %t.so | FileCheck --check-prefix=RELOC %s
# RUN: llvm-readobj -r %t.o | FileCheck --check-prefix=REL %s
# RUN: llvm-objdump -d --no-show-raw-insn --print-imm-hex %t.so | FileCheck %s
## Prior to D77021 lld would error "relocation R_HEX_GD_PLT_B22_PCREL cannot refer to absolute symbol".
## A PC-relative relocation referencing a non-preemptible absolute symbol (due to STT_TLS) is not representable in -pie/-shared mode.
## For this case we will actually patch the symbol to the external __tls_get_addr which is preemptible.
.globl _start
.type _start, @function
# RELOC: Section ({{.*}}) .rela.plt {
# RELOC-NEXT: R_HEX_JMP_SLOT - 0x0
# RELOC-NEXT: R_HEX_JMP_SLOT __tls_get_addr 0x0
# RELOC-NEXT: }
# REL: R_HEX_B32_PCREL_X _GLOBAL_OFFSET_TABLE_ 0x0
# REL-NEXT: R_HEX_6_PCREL_X _GLOBAL_OFFSET_TABLE_ 0x4
# REL-NEXT: R_HEX_GD_GOT_32_6_X a 0x0
# REL-NEXT: R_HEX_GD_GOT_16_X a 0x0
# REL-NEXT: R_HEX_GD_PLT_B22_PCREL a 0x0
# REL-NEXT: R_HEX_GD_PLT_B32_PCREL_X a 0x0
# REL-NEXT: R_HEX_GD_PLT_B22_PCREL_X a 0x4
# CHECK: { immext(#{{.*}})
# CHECK-NEXT: r2 = add(pc,##{{.*}}) }
# CHECK-NEXT: { immext(#{{.*}})
# CHECK-NEXT: r0 = add(r2,##-{{.*}}) }
# CHECK-NEXT: { call {{.*}} }
# CHECK-NEXT: { immext({{.*}})
# CHECK-NEXT: call {{.*}} }
# CHECK-NEXT: { r0 = memw(r0+#0x0) }
_start:
r2 = add(pc,##_GLOBAL_OFFSET_TABLE_@PCREL)
r0 = add(r2,##a@GDGOT)
call a@GDPLT
call ##a@GDPLT
r0 = memw(r0+#0)
## a is non-preemptible due to STV_HIDDEN visibility.
## We can achieve the same effect with -Bsymbolic.
.section .tdata,"awT",@progbits
.globl a
.hidden a
a:
.word 1