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llvm-project/lld/test/ELF/x86-64-tls-opt-noplt.s

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[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
// REQUIRES: x86
// Checks whether the TLS optimizations match the cases in Chapter 11 of
// https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
// RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %p/Inputs/tls-opt-gdie.s -o %tso.o
[ELF][test] Improve tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete weak-undef-val.s - covered by relocation-undefined-weak.s Delete weak-undef-export.s - covered by additional test added to weak-undef.s Delete version-undef-sym.s - covered by undefined-versioned-symbol.s => version-symbol-undef.s Delete symbol-ordering-file2.s - covered by symbol-ordering-file.s Delete gotpcrelx.s - covered by gotpc-relax-und-dso.s => x86-64-gotpc-relax-und-dso.s llvm-svn: 371299
2019-09-07 18:42:11 +08:00
// RUN: ld.lld -shared %tso.o -soname=t.so -o %t.so
[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
// RUN: ld.lld %t.o %t.so -o %t1
// RUN: llvm-readobj -r %t1 | FileCheck --check-prefix=RELOC %s
[ELF][test] Improve tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete weak-undef-val.s - covered by relocation-undefined-weak.s Delete weak-undef-export.s - covered by additional test added to weak-undef.s Delete version-undef-sym.s - covered by undefined-versioned-symbol.s => version-symbol-undef.s Delete symbol-ordering-file2.s - covered by symbol-ordering-file.s Delete gotpcrelx.s - covered by gotpc-relax-und-dso.s => x86-64-gotpc-relax-und-dso.s llvm-svn: 371299
2019-09-07 18:42:11 +08:00
// RUN: llvm-objdump -d --no-show-raw-insn %t1 | FileCheck --check-prefix=DISASM %s
[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
// RELOC: Relocations [
// RELOC-NEXT: Section {{.*}} .rela.dyn {
[ELF][X86] Allow PT_LOAD to have overlapping p_offset ranges on EM_X86_64 Port the D64906 technique to EM_X86_64. Differential Revision: https://reviews.llvm.org/D67482 llvm-svn: 371958
2019-09-16 15:05:34 +08:00
// RELOC-NEXT: 0x202420 R_X86_64_TPOFF64 tlsshared0 0x0
// RELOC-NEXT: 0x202428 R_X86_64_TPOFF64 tlsshared1 0x0
[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
// RELOC-NEXT: }
// RELOC-NEXT: ]
[llvm-objdump] -d: print `00000000 <foo>:` instead of `00000000 foo:` The new behavior matches GNU objdump. A pair of angle brackets makes tests slightly easier. `.foo:` is not unique and thus cannot be used in a `CHECK-LABEL:` directive. Without `-LABEL`, the CHECK line can match the `Disassembly of section` line and causes the next `CHECK-NEXT:` to fail. ``` Disassembly of section .foo: 0000000000001634 .foo: ``` Bdragon: <> has metalinguistic connotation. it just "feels right" Reviewed By: rupprecht Differential Revision: https://reviews.llvm.org/D75713
2020-03-06 06:18:38 +08:00
// DISASM: <_start>:
[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
// Table 11.5: GD -> IE Code Transition (LP64)
[ELF][test] Improve tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete weak-undef-val.s - covered by relocation-undefined-weak.s Delete weak-undef-export.s - covered by additional test added to weak-undef.s Delete version-undef-sym.s - covered by undefined-versioned-symbol.s => version-symbol-undef.s Delete symbol-ordering-file2.s - covered by symbol-ordering-file.s Delete gotpcrelx.s - covered by gotpc-relax-und-dso.s => x86-64-gotpc-relax-und-dso.s llvm-svn: 371299
2019-09-07 18:42:11 +08:00
// DISASM-NEXT: movq %fs:0, %rax
[ELF][X86] Allow PT_LOAD to have overlapping p_offset ranges on EM_X86_64 Port the D64906 technique to EM_X86_64. Differential Revision: https://reviews.llvm.org/D67482 llvm-svn: 371958
2019-09-16 15:05:34 +08:00
// DISASM-NEXT: 201309: addq 4368(%rip), %rax
[ELF][test] Improve tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete weak-undef-val.s - covered by relocation-undefined-weak.s Delete weak-undef-export.s - covered by additional test added to weak-undef.s Delete version-undef-sym.s - covered by undefined-versioned-symbol.s => version-symbol-undef.s Delete symbol-ordering-file2.s - covered by symbol-ordering-file.s Delete gotpcrelx.s - covered by gotpc-relax-und-dso.s => x86-64-gotpc-relax-und-dso.s llvm-svn: 371299
2019-09-07 18:42:11 +08:00
// DISASM-NEXT: movq %fs:0, %rax
[ELF][X86] Allow PT_LOAD to have overlapping p_offset ranges on EM_X86_64 Port the D64906 technique to EM_X86_64. Differential Revision: https://reviews.llvm.org/D67482 llvm-svn: 371958
2019-09-16 15:05:34 +08:00
// DISASM-NEXT: 201319: addq 4360(%rip), %rax
[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
// Table 11.7: GD -> LE Code Transition (LP64)
[ELF][test] Improve tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete weak-undef-val.s - covered by relocation-undefined-weak.s Delete weak-undef-export.s - covered by additional test added to weak-undef.s Delete version-undef-sym.s - covered by undefined-versioned-symbol.s => version-symbol-undef.s Delete symbol-ordering-file2.s - covered by symbol-ordering-file.s Delete gotpcrelx.s - covered by gotpc-relax-und-dso.s => x86-64-gotpc-relax-und-dso.s llvm-svn: 371299
2019-09-07 18:42:11 +08:00
// DISASM-NEXT: movq %fs:0, %rax
// DISASM-NEXT: leaq -8(%rax), %rax
// DISASM-NEXT: movq %fs:0, %rax
// DISASM-NEXT: leaq -4(%rax), %rax
[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
// Table 11.9: LD -> LE Code Transition (LP64)
[ELF][test] Improve tests Add file-level comments Delete insignificant addresses to make them more tolerant to layout changes Simplify test output Delete weak-undef-val.s - covered by relocation-undefined-weak.s Delete weak-undef-export.s - covered by additional test added to weak-undef.s Delete version-undef-sym.s - covered by undefined-versioned-symbol.s => version-symbol-undef.s Delete symbol-ordering-file2.s - covered by symbol-ordering-file.s Delete gotpcrelx.s - covered by gotpc-relax-und-dso.s => x86-64-gotpc-relax-und-dso.s llvm-svn: 371299
2019-09-07 18:42:11 +08:00
// DISASM-NEXT: movq %fs:0, %rax
// DISASM-NEXT: movq %fs:0, %rax
[ELF][X86_64] Fix corrupted LD -> LE optimization for TLS without PLT The LD -> LE optimization for Thread-Local Storage without PLT requires an additional "66" prefix, otherwise the next instruction will be corrupted, causing runtime misbehavior (crashes) of the linked object. The other (GD -> IE/LD) optimizations are the same with or without PLT, but add tests for completeness. The instructions are copied from https://raw.githubusercontent.com/wiki/hjl-tools/x86-psABI/x86-64-psABI-1.0.pdf#subsection.11.1.2 This does not try to address ILP32 (x32) support. Fixes https://bugs.llvm.org/show_bug.cgi?id=37303 Reviewed By: ruiu Differential Revision: https://reviews.llvm.org/D56779 llvm-svn: 351396
2019-01-17 07:28:51 +08:00
.type tls0,@object
.section .tbss,"awT",@nobits
.globl tls0
.align 4
tls0:
.long 0
.size tls0, 4
.type tls1,@object
.globl tls1
.align 4
tls1:
.long 0
.size tls1, 4
.section .text
.globl _start
_start:
// Table 11.5: GD -> IE Code Transition (LP64)
.byte 0x66
leaq tlsshared0@tlsgd(%rip),%rdi
.byte 0x66
rex64
call *__tls_get_addr@GOTPCREL(%rip)
.byte 0x66
leaq tlsshared1@tlsgd(%rip),%rdi
.byte 0x66
rex64
call *__tls_get_addr@GOTPCREL(%rip)
// Table 11.7: GD -> LE Code Transition (LP64)
.byte 0x66
leaq tls0@tlsgd(%rip),%rdi
.byte 0x66
rex64
call *__tls_get_addr@GOTPCREL(%rip)
.byte 0x66
leaq tls1@tlsgd(%rip),%rdi
.byte 0x66
rex64
call *__tls_get_addr@GOTPCREL(%rip)
// Table 11.9: LD -> LE Code Transition (LP64)
leaq tls0@tlsld(%rip),%rdi
call *__tls_get_addr@GOTPCREL(%rip)
leaq tls1@tlsld(%rip),%rdi
call *__tls_get_addr@GOTPCREL(%rip)