| // 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 |
