blob: 5218b68828ee5bd71ea54f5d872fe08788aa30b1 [file] [log] [blame]
// REQUIRES: ppc
// RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=powerpc64le-unknown-linux %p/Inputs/ppc64-tls.s -o %t2.o
// RUN: ld.lld -shared %t2.o -o %t2.so
// RUN: ld.lld -dynamic-linker /lib64/ld64.so.2 %t.o %t2.so -o %t
// RUN: llvm-readelf -relocations --wide %t.o | FileCheck --check-prefix=InputRelocs %s
// RUN: llvm-readelf -relocations --wide %t | FileCheck --check-prefix=OutputRelocs %s
// RUN: llvm-objdump --section-headers %t | FileCheck --check-prefix=CheckGot %s
// RUN: llvm-objdump -D %t | FileCheck --check-prefix=Dis %s
// RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=powerpc64-unknown-linux %p/Inputs/ppc64-tls.s -o %t2.o
// RUN: ld.lld -shared %t2.o -o %t2.so
// RUN: ld.lld -dynamic-linker /lib64/ld64.so.2 %t.o %t2.so -o %t
// RUN: llvm-readelf -relocations --wide %t.o | FileCheck --check-prefix=InputRelocs %s
// RUN: llvm-readelf -relocations --wide %t | FileCheck --check-prefix=OutputRelocs %s
// RUN: llvm-objdump --section-headers %t | FileCheck --check-prefix=CheckGot %s
// RUN: llvm-objdump -D %t | FileCheck --check-prefix=Dis %s
.text
.abiversion 2
.file "intial_exec.c"
.globl test_initial_exec # -- Begin function test_initial_exec
.p2align 4
.type test_initial_exec,@function
test_initial_exec: # @test_initial_exec
.Lfunc_begin0:
.Lfunc_gep0:
addis 2, 12, .TOC.-.Lfunc_gep0@ha
addi 2, 2, .TOC.-.Lfunc_gep0@l
.Lfunc_lep0:
.localentry test_initial_exec, .Lfunc_lep0-.Lfunc_gep0
# %bb.0: # %entry
li 3, 0
stw 3, -12(1)
addis 3, 2, a@got@tprel@ha
ld 3, a@got@tprel@l(3)
lwzx 4, 3, a@tls
extsw 3, 4
blr
test_hi:
.Lfunc_gep1:
addis 2, 12, .TOC.-.Lfunc_gep1@ha
addi 2, 2, .TOC.-.Lfunc_gep1@l
.Lfunc_lep1:
.localentry test2, .Lfunc_lep1-.Lfunc_gep1
addis 3, 0, b@got@tprel@h
blr
test_ds:
.Lfunc_gep2:
addis 2, 12, .TOC.-.Lfunc_gep2@ha
addi 2, 2, .TOC.-.Lfunc_gep2@l
.Lfunc_lep2:
.localentry test16, .Lfunc_lep2-.Lfunc_gep2
addi 3, 0, c@got@tprel
blr
// Verify that the input has every initial-exec tls relocation type.
// InputRelocs: Relocation section '.rela.text'
// InputRelocs: R_PPC64_GOT_TPREL16_HA {{0+}} a + 0
// InputRelocs: R_PPC64_GOT_TPREL16_LO_DS {{0+}} a + 0
// InputRelocs: R_PPC64_TLS {{0+}} a + 0
// InputRelocs: R_PPC64_GOT_TPREL16_HI {{0+}} b + 0
// InputRelocs: R_PPC64_GOT_TPREL16_DS {{0+}} c + 0
// There is a got entry for each tls variable that is accessed with the
// initial-exec model to be filled in by the dynamic linker.
// OutputRelocs: Relocation section '.rela.dyn' at offset 0x{{[0-9a-f]+}} contains 3 entries:
// OutputRelocs: R_PPC64_TPREL64 {{0+}} a + 0
// OutputRelocs: R_PPC64_TPREL64 {{0+}} b + 0
// OutputRelocs: R_PPC64_TPREL64 {{0+}} c + 0
// Check that the got has 4 entires. (1 for the TOC and 3 entries for TLS
// variables). Also verify the address so we can check
// the offsets we calculated for each relocation type.
// CheckGot: got 00000020 00000000100200c0
// GOT stats at 0x100200c0, so TOC will be 0x100280c0
// We are building the address of the first TLS got entry which contains the
// offset of the tls variable relative to the thread pointer.
// 0x100200c8 (got[1]).
// #ha(a@got@tprel) --> (0x100200c8 - 0x100280c0 + 0x8000) >> 16 = 0
// #lo(a@got@tprel)) --> (0x100200c8 - 0x100280c0) & 0xFFFF = -7ff8 = -32760
// Dis: test_initial_exec:
// Dis: addis 3, 2, 0
// Dis: ld 3, -32760(3)
// Dis: lwzx 4, 3, 13
// Second TLS got entry starts at got[2] 0x100200d0
// #hi(b@got@tprel) --> (0x100200d0 - 0x100280c0) >> 16 = -1
// Dis: test_hi:
// Dis: lis 3, -1
// Third TLS got entry starts at got[3] 0x100200d8.
// c@got@tprel--> (0x100200d8. - 0x100280c0) = -0x7fe8 = 32744
// Dis: test_ds:
// Dis: li 3, -32744