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